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`·1· · · · · · · · · · · ·V.Chaudhary, Ph.D.
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`·2· UNITED STATES PATENT AND TRADEMARK OFFICE
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`·3· BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`·4· Case No. IPR2020-00260 and IPR2020-00261
`· · · · · · · · ·Patent No. 8,269,523
`·5· ·------------------------------x
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`·6· ·FLEX LOGIX TECHNOLOGIES, INC.,
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`·7· · · · · · · ·Petitioner,
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`·8· · · · · · v.
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`·9· ·VENKAT KONDA
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`10· · · · · · · · ·Patent Owner.
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`11· ·------------------------------x
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`12
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`13· · · · · · ·VIDEOCONFERENCE DEPOSITION OF
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`14· · · · · · · · VIPIN CHAUDHARY, Ph.D.
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`15· · · · · · · · Highland Heights, Ohio
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`16· · · · · · ·Wednesday, December 30, 2020
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`17
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`18· Reported by:
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`19· DEBORAH C. FUREY, RPR, CLR, CRI
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`20· JOB NO. 188151
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`21
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`25
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`FLEX LOGIX EXHIBIT 1051
`Flex Logix Technologies v. Venkat Konda
`IPR2020-00261
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`Page 1 of 195
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`·1· · · · · · · · · · · ·V.Chaudhary, Ph.D.
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`·2· UNITED STATES PATENT AND TRADEMARK OFFICE
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`·3· BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`·4· Case No. IPR2020-00260 and IPR2020-00261
`· · · · · · · · ·Patent No. 8,269,523
`·5· ·------------------------------x
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`·6· ·FLEX LOGIX TECHNOLOGIES, INC.,
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`·7· · · · · · · ·Petitioner,
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`·8· · · · · · v.
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`·9· ·VENKAT KONDA
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`10· · · · · · · · ·Patent Owner.
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`11· ·------------------------------x
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`12
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`13· · · · · · ·VIDEOCONFERENCE DEPOSITION OF
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`14· · · · · · · · VIPIN CHAUDHARY, Ph.D.
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`15· · · · · · · · Highland Heights, Ohio
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`16· · · · · · ·Wednesday, December 30, 2020
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`17
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`18· Reported by:
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`19· DEBORAH C. FUREY, RPR, CLR, CRI
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`20· JOB NO. 188151
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`21
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`22
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`25
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`FLEX LOGIX EXHIBIT 1051
`Flex Logix Technologies v. Venkat Konda
`IPR2020-00261
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`Page 1 of 195
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`·1· · · · · · · · · · · ·V.Chaudhary, Ph.D.
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`Page 2
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`·2
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`·4
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`·5· · · · · · · · · · · · ·December 30, 2020
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`·6· · · · · · · · · · · · ·9:07 a.m.
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`·7
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`·8
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`·9· · · · · · ·Videoconference deposition of VIPIN
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`10· CHAUDHARY, Ph.D., held remotely via Zoom, before
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`11· Deborah C. Furey, a Registered Professional Reporter,
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`12· Certified LiveNote Reporter, and Notary Public of the
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`13· states of Ohio and Kentucky.
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`Page 2 of 195
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`·1· · · · · · · · · · · ·V.Chaudhary, Ph.D.
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`Page 3
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`·2· APPEARANCES:
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`·3· PAUL HASTINGS
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`·4· Attorneys for Petitioner
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`·5· 600 Travis Street
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`·6· Houston, Texas 77002
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`·7· BY:· PAUL ANDERSON, ESQ.
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`·8
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`·9· OFFICES OF WILLIAM C. MILKS, III
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`10· Attorneys for Patent Holder
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`11· 960 San Antonio Road
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`12· Palo Alto, California 94303
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`13· BY:· WILLIAM MILKS, III
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`14
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`15· ALSO PRESENT:· Venkat Konda, Patent Owner
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`·1· · · · · · · · · · · ·V.Chaudhary, Ph.D.
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`Page 4
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`·2· · · · · · · COURT REPORTER:· Due to the severity of
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`·3· · · · COVID-19 and following the practice of social
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`·4· · · · distancing, I will not be in the same room
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`·5· · · · with the witness.· Instead, I will report this
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`·6· · · · deposition remotely and will swear the witness
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`·7· · · · remotely.
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`·8· · · · · · · Do all parties stipulate to the validity
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`·9· · · · of this proceeding and transcript and remote
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`10· · · · swearing, and that it will be admissible in
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`11· · · · the courtroom as if it had been taken
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`12· · · · following Rule 30 of the Federal Rules of
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`13· · · · Civil Procedure and the State's rules where
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`14· · · · this case is pending?
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`15· · · · · · · MR. ANDERSON:· Paul Anderson.· I'm happy
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`16· · · · to stipulate to that for petitioner, Flex
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`17· · · · Logix.
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`18· · · · · · · MR. MILKS:· William Milks.· I agree to
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`19· · · · the stipulation on behalf of patent owner
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`20· · · · Venkat Konda.
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`21· V I P I N· C H A U D H A R Y,
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`22· · · · · · · called as a witness, having been first
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`23· · · · duly sworn by a Notary Public, was
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`24· · · · examined and testified as follows:
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`25
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`Page 4 of 195
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`·1· · · · · · · · · · · ·V.Chaudhary, Ph.D.
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`Page 5
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`·2· EXAMINATION
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`·3· BY MR. ANDERSON:
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`·4· · · · Q.· · Good morning, Dr. Chaudhary.
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`·5· · · · A.· · Good morning, Paul.
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`·6· · · · Q.· · Can you please state and spell your full
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`·7· · name for the record?
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`·8· · · · A.· · My name is Vipin Chaudhary.· First name,
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`·9· · Vipin, V-I-P-I-N.· Last name, Chaudhary,
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`10· · C-H-A-U-D-H-A-R-Y.
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`11· · · · Q.· · Is it your understanding that this
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`12· · deposition concerns two IPR proceedings
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`13· · corresponding to U.S. Pat Patent 8,269,523?
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`14· · · · A.· · That is correct.
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`15· · · · Q.· · And those proceedings, the IPR
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`16· · proceedings, have case numbers IPR 2020-00260 and
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`17· · dash 0261, correct?
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`18· · · · A.· · That is correct.
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`19· · · · Q.· · Okay.· During this deposition I'll refer
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`20· · to patent 8,269,523 as the '523 patent, is that
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`21· · okay with you?
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`22· · · · A.· · That would be fine.
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`23· · · · Q.· · Okay.· Have you ever been deposed
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`24· · before?
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`25· · · · A.· · No, I have not.
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`Page 5 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`·2· · · ·Q.· · So before we begin, I want to go over
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`Page 6
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`·3· ·some basic ground rules.
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`·4· · · · · · ·I'm going to be asking questions during
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`·5· ·the deposition and your counsel, Mr. Milks, may
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`·6· ·object.· But you must answer the question unless
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`·7· ·your counsel instructs you not to answer.
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`·8· · · · · · ·If a question is unclear, please let me
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`·9· ·know so that I can rephrase it if necessary.
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`10· ·Otherwise, I'll assume that you understood my
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`11· ·question.· Okay?
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`12· · · · · · ·Our discussion is going to be
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`13· ·transcribed by the court reporter.· And it's
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`14· ·important to speak your answers, for obvious
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`15· ·reasons, because the court reporter cannot
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`16· ·transcribe gestures.· So affirmative answers as
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`17· ·opposed to head nods and things like that would be
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`18· ·appreciated.
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`19· · · · · · ·And for the benefit of the court
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`20· ·reporter, we'll try very hard not to speak over
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`21· ·each other.· I know that's more difficult in these
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`22· ·remote circumstances.
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`23· · · · · · ·We'll take breaks about every hour
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`24· ·during the deposition, but if you need one in
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`25· ·between or if I forget to take one, please let me
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`Page 6 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`Page 7
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`·2· ·know.
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`·3· · · · · · ·If a question is pending, I'll request
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`·4· ·that you answer that question before requesting a
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`·5· ·break.
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`·6· · · · · · ·Any questions before we begin?
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`·7· · · ·A.· · No, I don't have any questions.
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`·8· · · ·Q.· · Okay.· Is there any reason that would
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`·9· ·prevent you from testifying truthfully and
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`10· ·accurately today?
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`11· · · ·A.· · No.
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`12· · · ·Q.· · Did you prepare for this deposition?
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`13· · · ·A.· · Yes, I did.
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`14· · · ·Q.· · About how many hours did you spend
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`15· ·preparing for this deposition?
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`16· · · ·A.· · Can you be more clear about exactly
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`17· ·"deposition"?
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`18· · · ·Q.· · Sure.
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`19· · · · · · ·When did you submit your declarations in
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`20· ·this matter -- in these matters?
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`21· · · ·A.· · The declaration was submitted -- the
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`22· ·declaration, August 10th of this year.
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`23· · · ·Q.· · So since August 10th, how many --
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`24· ·approximately how many hours have you spent on
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`25· ·these IPR proceedings?
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`Page 7 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`·2· · · ·A.· · Since August 10th, I would have spent
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`Page 8
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`·3· ·maybe a couple of hours.
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`·4· · · ·Q.· · Okay.· In the last week, did you spend
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`·5· ·any time on these matters in preparation for this
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`·6· ·deposition?
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`·7· · · ·A.· · Yes.· It is in this week that I have
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`·8· ·spent the couple of hours.
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`·9· · · ·Q.· · Okay.· And who did you prepare with?
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`10· · · ·A.· · I mostly prepared myself.
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`11· · · ·Q.· · Did you speak with anyone in connection
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`12· ·with this deposition?
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`13· · · ·A.· · I have spoken to Mr. Konda or Dr. Konda
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`14· ·before for a short while, and I have spoken to him
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`15· ·before August 10th.
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`16· · · ·Q.· · Have you met with Mr. Milks before
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`17· ·today?
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`18· · · ·A.· · Yes, we had a phone call.
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`19· · · ·Q.· · When were you first retained by
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`20· ·Dr. Konda to assist with the '523 patent?
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`21· · · ·A.· · It was a while back.· I believe sometime
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`22· ·early this year when he called me about this
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`23· ·patent issue.
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`24· · · ·Q.· · Do you recall when, specifically?
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`25· · · ·A.· · I don't recall the date, no.
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`Page 8 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`Page 9
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`·2· · · ·Q.· · Okay.· During the course of your entire
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`·3· ·retention with Dr. Konda on this matter, have you
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`·4· ·had discussions with anyone besides Dr. Konda and
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`·5· ·Mr. Milks, regarding the '523 patent?
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`·6· · · ·A.· · No, I have not.
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`·7· · · ·Q.· · And I assume you recall submitting a
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`·8· ·declaration in each of these two proceedings
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`·9· ·corresponding to the '523 patent, correct?
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`10· · · ·A.· · That is correct.
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`11· · · ·Q.· · Okay.· Are you aware of any material
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`12· ·differences between the two declarations that were
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`13· ·filed?
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`14· · · ·A.· · I don't remember specifically
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`15· ·differences between them.
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`16· · · ·Q.· · Okay.· Are you familiar with patents?
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`17· · · ·A.· · Yes, I am.
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`18· · · ·Q.· · Do you have any patents in your name?
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`19· · · ·A.· · Yes, I have a couple.
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`20· · · ·Q.· · And were you pretty active in
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`21· ·prosecuting those patent applications?
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`22· · · ·A.· · I was involved as an inventor in placing
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`23· ·the patent, and we did have university lawyers
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`24· ·putting the finishing touches and going back and
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`25· ·forth with them, but I was very involved.
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`Page 9 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`Page 10
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`·2· · · ·Q.· · Were you involved in the drafting of the
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`·3· ·claims for those patents?
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`·4· · · ·A.· · Yes, I was.
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`·5· · · ·Q.· · Okay.· Are you familiar with Flex Logix.
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`·6· · · ·A.· · Only as it relates to my reading of the
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`·7· ·documents here, not otherwise.
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`·8· · · ·Q.· · Okay.· Do you have any paper copies of
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`·9· ·any of the materials related to these proceedings
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`10· ·with you today?
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`11· · · ·A.· · I have two paper copies, one is my
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`12· ·declaration and the other is the '523 patent, with
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`13· ·me.
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`14· · · ·Q.· · And are those clean copies that don't
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`15· ·have any markings on them?
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`16· · · ·A.· · That is correct.
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`17· · · ·Q.· · Okay.· And you don't have any other
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`18· ·documents with you today?
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`19· · · ·A.· · No, I don't.
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`20· · · ·Q.· · Okay.· Can we turn to your declaration
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`21· ·in the 260 proceeding, please?· I believe that's
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`22· ·Exhibit 2025.
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`23· · · · · · · · · (Exhibit 2025 previously marked for
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`24· · · · · · ·identification was offered.)
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`25· · · ·A.· · Yes, I have it with me.
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`Page 10 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`·2· · · ·Q.· · Okay.· And could you please turn to
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`Page 11
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`·3· ·Paragraph 13 on Page 5?
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`·4· · · ·A.· · Yes.
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`·5· · · ·Q.· · And Paragraph 13 lists a number of
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`·6· ·different documents that are part of these
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`·7· ·proceedings.
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`·8· · · · · · ·And at the beginning of the paragraph it
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`·9· ·says, "I have considered the following materials
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`10· ·in preparing the opinions set forth in this
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`11· ·declaration."
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`12· · · · · · ·Do you see that?
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`13· · · ·A.· · I do see that.
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`14· · · ·Q.· · So you have reviewed the materials
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`15· ·listed in Paragraph 13, correct?
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`16· · · ·A.· · I have considered those materials and I
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`17· ·have reviewed in detail those that are applicable
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`18· ·to my declaration.
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`19· · · ·Q.· · When you reviewed those materials, did
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`20· ·you review paper copies or electronic copies?
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`21· · · ·A.· · Most of the time, they are paper copies.
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`22· ·I'm still old school.
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`23· · · ·Q.· · Okay.· That's a lot of paper, I will
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`24· ·say.· Some of those documents are quite thick, so
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`25· ·your printer is tired.
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`Page 11 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`Page 12
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`·2· · · ·A.· · Yes.
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`·3· · · ·Q.· · Do you still have those paper copies?
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`·4· · · ·A.· · No, I don't.
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`·5· · · ·Q.· · Okay.· Can you please turn to Paragraph
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`·6· ·2 of this declaration?
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`·7· · · · · · ·And in Paragraph 2, you indicate that,
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`·8· ·"I have read and understood the '523 patent and
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`·9· ·Claims 1 through 48 of the '523 patent."
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`10· · · · · · ·And it's the second-to-the-last
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`11· ·sentence.
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`12· · · · · · ·Do you see that?
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`13· · · ·A.· · I do see that.
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`14· · · ·Q.· · So you have read and understood the '523
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`15· ·patent in its entirety, correct?
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`16· · · ·A.· · That is correct.
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`17· · · ·Q.· · Okay.· And you've read and understood
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`18· ·all of Claims 1 through 48 of the '523 patent as
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`19· ·it issued, correct?
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`20· · · ·A.· · Yes, I do.
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`21· · · ·Q.· · Okay.· If we could turn back to
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`22· ·Paragraph 14, please, which is on, I believe,
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`23· ·Page 6 -- no, Page 7.
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`24· · · ·A.· · I want to change.· I have computer
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`25· ·glasses and reading glasses, so excuse me.
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`Page 12 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`Page 13
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`·2· · · ·Q.· · Actually, you're reminding me that I
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`·3· ·don't have my reading glasses here, which could be
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`·4· ·-- I guess I will stick with the computer.
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`·5· · · · · · ·So in Paragraph 14, do you see where it
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`·6· ·says, "My opinions reflect how one of ordinary
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`·7· ·skill in the art would have understood the '523
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`·8· ·patent, the alleged prior art to the '523 patent,
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`·9· ·and the state of the art at the time of the
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`10· ·invention"?
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`11· · · ·A.· · Yes, I do see that.
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`12· · · ·Q.· · What is your understanding of what
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`13· ·constitutes a person of ordinary skill in the art
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`14· ·in these proceedings corresponding to the '523
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`15· ·patent?
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`16· · · ·A.· · I do state that in Paragraph 16 of my
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`17· ·declaration.· There, it states, "In my opinion,
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`18· ·one of ordinary skill in the art to which the '523
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`19· ·patent pertains would have a master's degree in
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`20· ·electrical or computer engineering or a similar
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`21· ·field and at least two to three years of
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`22· ·experience with integrated circuits,
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`23· ·interconnections networks and Field Programmable
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`24· ·Gate Arrays.· In the pertinent field of the
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`25· ·invention, more education can supplement practical
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`Page 13 of 195
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`Page 14
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`·2· ·experience, and vice versa."
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`·3· · · ·Q.· · So why is it your opinion that a person
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`·4· ·of ordinary skill in the art would need at least a
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`·5· ·master's degree in electrical engineering, absent
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`·6· ·additional practical experience?
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`·7· · · ·A.· · Okay.· So a lot of the undergraduate
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`·8· ·degrees in electrical or computer engineering do
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`·9· ·not cover any of this material.
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`10· · · ·Q.· · So you feel it's important for a person
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`11· ·of ordinary skill in the art to have had some
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`12· ·coursework in the subject matter in order to be
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`13· ·considered a person of ordinary skill in the art?
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`14· · · ·A.· · Some background is required, otherwise,
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`15· ·it could even be you don't need a degree.
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`16· · · · · · ·(Reporter clarification.)
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`17· · · ·A.· · Some degree of formal education in this
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`18· ·field is required.
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`19· · · ·Q.· · So if a person of -- if a person only
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`20· ·had a bachelor's degree and did not have any
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`21· ·coursework in integrated circuits and networking,
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`22· ·yet, they had, say, six years of practical
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`23· ·experience working with networking, would they be
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`24· ·considered a person of ordinary skill in the art,
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`25· ·in your opinion?
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`Page 14 of 195
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`Page 15
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`·2· · · ·A.· · I do not really understand your
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`·3· ·question.
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`·4· · · ·Q.· · So in Paragraph 16 you indicate that,
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`·5· ·"More education can supplement practical
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`·6· ·experience and vice versa."
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`·7· · · · · · ·What do you mean by that statement?
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`·8· · · ·A.· · So I indicate that you need at least two
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`·9· ·to three years of experience with integrated
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`10· ·circuits, interconnection networks and Field
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`11· ·Programmable Gate Arrays, all three of those.
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`12· · · · · · ·If they don't have at least two or three
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`13· ·years of experience in those areas, then more
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`14· ·education could supplement that, or if they didn't
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`15· ·have more education, they could have more work
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`16· ·experience.
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`17· · · ·Q.· · And that's the -- I guess what I'm
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`18· ·trying to get with my question.
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`19· · · · · · ·So if you only had a bachelor's degree
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`20· ·and not a master's degree, but you had six years
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`21· ·of experience with integrated circuits,
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`22· ·interconnection networks and Field Programmable
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`23· ·Gate Array, do you think that would be enough for
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`24· ·that person to be considered a person of ordinary
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`25· ·skill in the art?
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`Page 15 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`·2· · · ·A.· · It depends on the person.
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`·3· · · ·Q.· · What do you mean by "it depends on the
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`Page 16
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`·4· ·person"?
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`·5· · · ·A.· · Whether they are actually working in
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`·6· ·these areas and at what level they are working in
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`·7· ·these areas.
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`·8· · · ·Q.· · What do you mean by "what level they are
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`·9· ·working in these areas"?
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`10· · · ·A.· · So integrated circuits, interconnection
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`11· ·networks, Field Programmable Gate Arrays, are they
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`12· ·merely using those or they are working in that
`
`13· ·area?· There can be people who can just be using
`
`14· ·Field Programmable Gate Arrays, and there are
`
`15· ·people who work to build and to design and know
`
`16· ·the internals.
`
`17· · · ·Q.· · What's involved in building and
`
`18· ·designing Field Programmable Gate Arrays?
`
`19· · · ·A.· · I don't understand the question.
`
`20· · · · · · ·Do you want me to give a course here on
`
`21· ·building?· I can do that.
`
`22· · · ·Q.· · Let me help the court reporter first.
`
`23· · · · · · ·The question was, what's involved in
`
`24· ·building and designing a Field Programmable Gate
`
`25· ·Array?
`
`Page 16 of 195
`
`
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`Page 17
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· · · · · · ·(Reporter clarification.)
`
`·3· · · ·Q.· · And I appreciate your question with
`
`·4· ·respect to my question, Dr. Chaudhary.
`
`·5· · · · · · ·Typically, what is involved when someone
`
`·6· ·designs a Field Programmable Gate Array?· Is it
`
`·7· ·done in software?· Is it a hardware implementation
`
`·8· ·that you would construct from scratch?
`
`·9· · · · · · ·I guess, when you refer to working with
`
`10· ·Field Programmable Gate Arrays, I kind of want to
`
`11· ·get a sense as to what you believe that involves.
`
`12· · · · · · ·MR. MILKS:· Objection to the form of the
`
`13· · · ·question.
`
`14· · · ·Q.· · So I'll repeat my question that I asked
`
`15· ·before.
`
`16· · · · · · ·What's involved in building and
`
`17· ·designing a Field Programmable Gate Array?
`
`18· · · ·A.· · It involves a background in electrical
`
`19· ·computer engineering with a master's degree in
`
`20· ·that area.
`
`21· · · ·Q.· · So a person that only has a bachelor's
`
`22· ·degree would be incapable of building and
`
`23· ·designing a Field Programmable Gate Array?
`
`24· · · ·A.· · I do not really understand.· You could
`
`25· ·have a person who has not gone even to school,
`
`Page 17 of 195
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
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`Page 18
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`·2· ·who's an outlier, but as when we're talking about
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`·3· ·a procedure, to me, there's typically a master's
`
`·4· ·student would have that background.
`
`·5· · · ·Q.· · Have you designed Field Programmable
`
`·6· ·Gate Arrays?
`
`·7· · · ·A.· · Yes, I have.
`
`·8· · · ·Q.· · When did you do that?
`
`·9· · · ·A.· · This was in the early 2000s.
`
`10· · · ·Q.· · And was there particular FPGA?· And
`
`11· ·that's FPGA, as in Field Programmable Gate Array.
`
`12· ·Was there a particular FPGA vendor whose hardware
`
`13· ·you used for your gate array?
`
`14· · · ·A.· · That is exactly what I was saying.· It
`
`15· ·is not using a vendor's FPGA.· I developed, within
`
`16· ·processor an FPGA.
`
`17· · · ·Q.· · Can you explain to me what you mean by
`
`18· ·that?
`
`19· · · ·A.· · So whether -- if you take a car, are you
`
`20· ·building a car or are you driving a car?· Am I
`
`21· ·using a Tesla or I'm designing the Tesla?
`
`22· · · · · · ·The difference in using another
`
`23· ·company's FPGA is just using it.· I don't have to
`
`24· ·design that FPGA.
`
`25· · · ·Q.· · I guess I understand how FPGAs were
`
`Page 18 of 195
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`
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`Page 19
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· ·typically designed 20 years ago, and maybe I no
`
`·3· ·longer am current, but my recollection is that
`
`·4· ·FPGAs had fixed hardware platforms and you would
`
`·5· ·provide, essentially, a net list that would then
`
`·6· ·program the gates on that FPGA, and it appears
`
`·7· ·that what you're saying is you actually designed
`
`·8· ·the flexible hardware on the chip that would later
`
`·9· ·be programmed, is that correct?
`
`10· · · ·A.· · Yes.
`
`11· · · · · · ·MR. MILKS:· Object to the form of the
`
`12· · · ·question.
`
`13· · · ·Q.· · Let me rephrase the question.
`
`14· · · · · · ·So when you designed an FPGA, you
`
`15· ·designed the hardware on the chip that would later
`
`16· ·be configured, is that correct?
`
`17· · · ·A.· · That is correct.
`
`18· · · ·Q.· · And it's your opinion that a person of
`
`19· ·ordinary skill in the art would have to have a
`
`20· ·master's degree in order to do that design work,
`
`21· ·is that correct?
`
`22· · · ·A.· · Yes, that is what I state in my
`
`23· ·declaration as the procedure.
`
`24· · · ·Q.· · And if a person had not or has not
`
`25· ·designed the hardware that is later programmed in
`
`Page 19 of 195
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`
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`Page 20
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· ·order to realize an FPGA, they would not be a
`
`·3· ·person of ordinary skill in the art in this
`
`·4· ·proceeding, is that correct?
`
`·5· · · ·A.· · I don't understand the question.
`
`·6· · · ·Q.· · Do you believe it's a requirement for an
`
`·7· ·engineer to have designed the hardware aspect of
`
`·8· ·an FPGA in order for that person to qualify as a
`
`·9· ·person of ordinary skill in the art in this
`
`10· ·proceeding?
`
`11· · · ·A.· · Yes, they should have experience in the
`
`12· ·design process.
`
`13· · · ·Q.· · So in Paragraph 16, you also indicate
`
`14· ·that a person of ordinary skill in the art would
`
`15· ·have two to three years of experience with
`
`16· ·integrated circuits.
`
`17· · · · · · ·What type of experience with integrated
`
`18· ·circuits do you believe a person of ordinary skill
`
`19· ·in the art would require?
`
`20· · · ·A.· · Can you be more specific?
`
`21· · · ·Q.· · Well, I'm trying to understand what you
`
`22· ·mean by "two to three years of experience with
`
`23· ·integrated circuits."
`
`24· · · · · · ·What did you mean when you included that
`
`25· ·in Paragraph 16?
`
`Page 20 of 195
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`
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`Page 21
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`·2· · · ·A.· · It means design of integrated circuits.
`
`·3· · · ·Q.· · And Paragraph 16 also mentions
`
`·4· ·interconnection networks.
`
`·5· · · · · · ·What type of experience would a person
`
`·6· ·of ordinary skill in the art have to have with
`
`·7· ·interconnection networks in order to be considered
`
`·8· ·a person of ordinary skill in the art?
`
`·9· · · ·A.· · They need to know interconnection
`
`10· ·networks, different types of interconnection
`
`11· ·networks, what the advantages and disadvantages
`
`12· ·are of different types of interconnection
`
`13· ·networks.
`
`14· · · ·Q.· · What do you mean by "different types of
`
`15· ·interconnection networks"?
`
`16· · · ·A.· · Can you be more specific?
`
`17· · · ·Q.· · Well, in your answer you indicated that
`
`18· ·there were different types of interconnection
`
`19· ·networks.· And I'm trying to find out what those
`
`20· ·different types of interconnection networks are
`
`21· ·that you're referring to.
`
`22· · · · · · ·THE WITNESS:· I think Bill is -- Bill,
`
`23· · · ·are you trying to say something?· I see his
`
`24· · · ·thing pop up.· Sorry for --
`
`25· · · · · · ·MR. MILKS:· No, I'm not trying to say
`
`Page 21 of 195
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`
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`Page 22
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· · · ·anything.· Can you hear me all right?
`
`·3· · · · · · ·MR. ANDERSON:· Yeah, we can hear you.
`
`·4· · · · · · ·THE WITNESS:· Yeah.
`
`·5· · · ·A.· · So there are different types of
`
`·6· ·interconnection networks.· They range from what
`
`·7· ·are called direct networks and what are called
`
`·8· ·indirect networks.
`
`·9· · · · · · ·Direct networks are interconnection
`
`10· ·networks where you have a computing element or
`
`11· ·some integrated check or some integrated block
`
`12· ·connect to another integrated block directly.
`
`13· ·Examples of those are numerous.· Some could be a
`
`14· ·Ring network.· It could be a --
`
`15· · · · · · ·(Reporter clarification.)
`
`16· · · ·A.· · They can be a Ring network, they could
`
`17· ·be a mesh network, they could be a hybercube
`
`18· ·network, H-Y-B-E-R-C-U-B-E, and so on.
`
`19· · · · · · ·And then there are indirect networks.
`
`20· ·These are networks which connect to integrated
`
`21· ·blocks via some switch.· So there is no direct
`
`22· ·connection between those integrated blocks,
`
`23· ·rather, it is through circuits.
`
`24· · · · · · ·Now, you can have different types of
`
`25· ·switches, different number of switches, and they
`
`Page 22 of 195
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`
`
`Page 23
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· ·can be connected in different ways, and that is
`
`·3· ·the indirect interconnection network.
`
`·4· · · · · · ·And both of these, and within each of
`
`·5· ·those, they are used for different purposes and
`
`·6· ·they all have advantages and disadvantages.
`
`·7· · · · · · ·So one has to be aware of those to make
`
`·8· ·the right decision on what interconnection network
`
`·9· ·to use.
`
`10· · · · · · ·That is what I would call a succinct
`
`11· ·answer.· If you want me to elaborate, I can go
`
`12· ·deeper into those.
`
`13· · · ·Q.· · Thank you.
`
`14· · · · · · ·Do you consider yourself to have the
`
`15· ·qualifications of a person of ordinary skill in
`
`16· ·the art, as you have defined it, as of May 25th,
`
`17· ·2007?
`
`18· · · ·A.· · Yes, I do.
`
`19· · · ·Q.· · Okay.· Can you please turn to the '523
`
`20· ·patent?
`
`21· · · ·A.· · Yes.
`
`22· · · ·Q.· · And have you read this patent
`
`23· ·thoroughly?
`
`24· · · ·A.· · I read this patent before August 10th
`
`25· ·thoroughly.
`
`Page 23 of 195
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`
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`Page 24
`
`·2· · · ·Q.· · Is there any aspect of the '523 patent
`
`·3· ·that is unclear to you or doesn't make sense from
`
`·4· ·a technical perspective?
`
`·5· · · ·A.· · No, it does not.
`
`·6· · · ·Q.· · So you believe that the entirety of the
`
`·7· ·'523 patent is clear and the entirety of it also
`
`·8· ·makes sense to you from a technical perspective?
`
`·9· · · ·A.· · Yes, it does.
`
`10· · · · · · · · · (Exhibit 1001 previously marked for
`
`11· · · · · · ·identification was offered.)
`
`12· · · ·Q.· · Okay.· Can you please turn to Claim 1 of
`
`13· ·the '523 patent, and that's in Column 35, if
`
`14· ·that's helpful.
`
`15· · · ·A.· · Yes, I see it.
`
`16· · · ·Q.· · Okay.· So in the preamble of the '523
`
`17· ·patent it says, "An integrated circuit device
`
`18· ·comprising a plurality of sub-integrated circuit
`
`19· ·blocks and a routing network."
`
`20· · · · · · ·Do you see that?
`
`21· · · ·A.· · I do see that.
`
`22· · · ·Q.· · What is your understanding of a
`
`23· ·"sub-integrated circuit block" in the context of
`
`24· ·Claim 1 of the '523 patent?
`
`25· · · ·A.· · Well, it is a definition of a portion of
`
`Page 24 of 195
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`
`
`Page 25
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· ·the integrated circuit device.
`
`·3· · · ·Q.· · Okay.· Can you flip back to your
`
`·4· ·declaration and go to Paragraph 36.
`
`·5· · · · · · ·And if you would look over on the next
`
`·6· ·page, which is Page 15, there's a Figure 1B.
`
`·7· · · · · · ·Do you see that?
`
`·8· · · ·A.· · Yes, I do.
`
`·9· · · ·Q.· · Is there a sub-integrated circuit block
`
`10· ·depicted in Figure 1B of the '523 patent?
`
`11· · · ·A.· · Yes, there would be.
`
`12· · · ·Q.· · Can you tell me what in Figure 1B
`
`13· ·corresponds to a sub-integrated circuit block as
`
`14· ·that term is used in Claim 1?
`
`15· · · ·A.· · This -- there are many of those.· I will
`
`16· ·give you one example.· It is the IS1 and OS1.
`
`17· · · ·Q.· · So the block that is in the top-most --
`
`18· ·top left of Figure 1B that has, on the left side,
`
`19· ·IL1 and OL1 and IL2 and OL2.
`
`20· · · · · · ·That box that's labeled IS1 and OS1 is a
`
`21· ·sub-integrated circuit block, in your opinion?
`
`22· · · ·A.· · That would be one.
`
`23· · · ·Q.· · And what teaches you that that is a
`
`24· ·sub-integrated circuit block?
`
`25· · · ·A.· · A sub-integrated block is a subset of an
`
`Page 25 of 195
`
`
`
`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`Page 26
`
`·2· ·integrated block.· That sub typically is subset.
`
`·3· · · ·Q.· · Does the '523 patent describe a
`
`·4· ·sub-integrated circuit block in the specification?
`
`·5· · · ·A.· · As I put in my declaration, any POSITA
`
`·6· ·would know that.
`
`·7· · · · · · ·(Reporter clarification.)
`
`·8· · · ·A.· · Any POSITA, person of ordinary skill in
`
`·9· ·the art.
`
`10· · · ·Q.· · I'm asking if the '523 patent itself
`
`11· ·describes a sub-integrated circuit block anywhere
`
`12· ·in the specification.
`
`13· · · ·A.· · I do not recollect.
`
`14· · · ·Q.· · Can you please turn to Column 3 of the
`
`15· ·'523 patent?· And specifically right around Line
`
`16· ·12, under the summary of the invention.
`
`17· · · · · · ·Do you see there it says, "Large scale
`
`18· ·sub-integrated circuit blocks"?
`
`19· · · ·A.· · Yes, I do see that.
`
`20· · · ·Q.· · And is it your understanding that a
`
`21· ·Lookup Table can be a sub-integrated circuit
`
`22· ·block?
`
`23· · · ·A.· · Yes.
`
`24· · · ·Q.· · Okay.· And at Line 29, going a little
`
`25· ·bit further down, it says, "In one embodiment, the
`
`Page 26 of 195
`
`
`
`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`Page 27
`
`·2· ·sub-integrated circuit blocks are arranged in a
`
`·3· ·hypercube arrangement in a two-dimensional plane."
`
`·4· · · · · · ·Do you see that?
`
`·5· · · ·A.· · I do see that.
`
`·6· · · ·Q.· · What is a "hypercube arrangement"?
`
`·7· · · ·A.· · Hypercube is a direct interconnection
`
`·8· ·network.· It is a type of interconnection network
`
`·9· ·with specific properties.
`
`10· · · · · · ·The way you build that network is you
`
`11· ·start with a network of order zero, which is one
`
`12· ·node.
`
`13· · · · · · ·You take two of the zero order
`
`14· ·hypercubes.· So the specific hypercube here that
`
`15· ·I'm talking about is called a binary hypercube.
`
`16· ·Let me start with that because it's easier to
`
`17· ·explain.
`
`18· · · · · · ·You take two of zero order hypercubes.
`
`19· ·You connect corresponding nodes.· In this case,
`
`20· ·you have one node of zero hypercube, another node
`
`21· ·of zero hypercube.· You connect them by an edge,
`
`22· ·that becomes hypercube of order one.
`
`23· · · · · · ·(Reporter clarification.)
`
`24· · · ·A.· · You take two order one hypercubes,
`
`25· ·connect these corresponding nodes by edges that
`
`Page 27 of 195
`
`
`
`Page 28
`
`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· ·becomes a second order hypercube.· So that will
`
`·3· ·look like a square.· So you had two of those
`
`·4· ·connected.· So it will look like a single mesh,
`
`·5· ·with four nodes, each one connected almost in a
`
`·6· ·ring fashion.
`
`·7· · · · · · ·You take two of those order two
`
`·8· ·hypercubes, connect corresponding nodes, you get
`
`·9· ·to a third order hypercube, which will look like a
`
`10· ·cube, and you continue this process.
`
`11· · · · · · ·So if you take two arbitrary n-th order,
`
`12· ·n-th order binary hypercubes, and connect their
`
`13· ·corresponding nodes with edges, that becomes
`
`14· ·endless 1 n-th order hypercube.
`
`15· · · · · · ·(Reporter clarification.)
`
`16· · · ·A.· · 2 n-th order binary hypercubes, you
`
`17· ·connect the corresponding nodes by edges, you
`
`18· ·create an n plus 1 th.· So n plus 1 in places with
`
`19· ·a superscript of th, order hypercube.· That is how
`
`20· ·you construct a binary hypercube of order n.
`
`21· · · · · · ·So 2 n-th order binary hypercube, you
`
`22· ·connect the corresponding nodes by edges, you
`
`23· ·create an n plus 1th.· So n plus 1 within places
`
`24· ·with a superscript of th order hypercube.
`
`25· · · · · · ·That is how you construct a binary
`
`Page 28 of 195
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`
`
`Page 29
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`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`·2· ·hypercube of order n-th.
`
`·3· · · · · · ·(Reporter clarification.)
`
`·4· · · ·A.· · Continuing to answer your question.
`
`·5· · · ·Q.· · Sure.
`
`·6· · · ·A.· · I described how you build a hypercube,
`
`·7· ·and so that -- n-th order hypercube, I describe
`
`·8· ·what the connections between the different nodes
`
`·9· ·are.
`
`10· · · · · · ·And so what the statement 29 and 30 says
`
`11· ·that, "In one embodiment, the sub-integrated
`
`12· ·blocks are arranged in a hypercube arrangement in
`
`13· ·a two-dimensional plane."
`
`14· · · · · · ·So the subblocks are connected to each
`
`15· ·other just the way I described as a hypercube, and
`
`16· ·they are laid out in a two-dimensional plane.
`
`17· · · ·Q.· · Is there a direct connection between the
`
`18· ·sub-integrated circuit blocks when they're
`
`19· ·arranged in a hypercube format?
`
`20· · · ·A.· · There need not be, but it can be through
`
`21· ·switches.
`
`22· · · ·Q.· · Okay.
`
`23· · · ·A.· · But the blocks have that kind of a
`
`24· ·layout with connection between those subblocks.
`
`25· · · ·Q.· · Can we turn back to Claim 1, please,
`
`Page 29 of 195
`
`
`
`·1· · · · · · · · · · · V.Chaudhary, Ph.D.
`
`Page 30
`
`·2· ·which, again, is in Column 35 of the '523 patent.
`
`·3· · · ·A.· · Yes.· Got it.
`
`·4· · · ·Q.· · Okay.· And do you see in the preamble it
`
`·5· ·says, "An integrated circuit device comprising a
`
`·6· ·plurality of sub-integrated circuit blocks and a
`
`·7· ·network"?
`
`·8· · · ·A.· · Right.
`
`·9· · · ·Q.· · Is it your understanding that the
`
`10· ·sub-integrated circuit blocks and the network are
`
`11· ·two separate aspects of the integrated circuit?
`
`12· · · ·A.· · I don't understand your question.
`
`13· · · ·Q.· · So the preamble recites "a plurality of
`
`14· ·sub-integrated circuit blocks," and separately
`
`15· ·recites "a network."
`
`16· · · · · · ·I'm trying to understand the
`
`17· ·relatio
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