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IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`In re U.S. Patent No. 6,240,376
`
`Application No.:
`Filed:
`Issued:
`
`09/127,587
`July 31, 1998
`May 29, 2001
`
`Inventors:
`
`Alain Raynaud
`Luc M. Burgun
`
`
`
`Trial No.:
`
`
`
`
`
`
`Atty. Dkt. No.
`
`IPR 2012-00042
`
`007121.00004
`
`Patent Owner: Mentor Graphics
`Corporation
`
`METHOD AND APPARATUS
`FOR GATE-LEVEL
`SIMULATION OF
`SYNTHESIZED REGISTER
`TRANSFER LEVEL DESIGNS
`WITH SOURCE-LEVEL
`DEBUGGING
`
`
`
`
`
`
`
`
`
`
`
`
`
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`
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`
`
`
`
`For:
`
`Mail Stop PATENT BOARD
`Patent Trial and Appeal Board
`United States Patent and Trademark Office
`P.O. Box 1450
`Alexandria, VA 22313-1450
`
`PATENT OWNER’S REPLY IN SUPPORT OF ITS SUBSTITUTE MOTION TO AMEND
`UNDER 37 C.F.R. § 42.121
`
`
`

`

`Table of Contents
`
`I. Petitioner and Its Expert Improperly Interpret the Substitute Claims ............................ 1
`
`II. Petitioner’s Reading of the Substitute Claims on Gregory is Faulty .............................. 2
`
`III. Petitioner’s Alleged “Knowledge And Skill Possessed By An Ordinarily Skilled Artisan”
`Fails To Rebut The Demonstrated Non-Obviousness ................................................. 3
`
`
`
`
`
`
`
`
`
`i
`
`

`

`
`
`Previously Filed
`
`MG 2001
`
`MG 2002
`
`MG 2003
`
`MG 2004
`
`MG 2005
`
`MG 2006
`
`MG 2007
`
`MG 2008
`
`MG 2009
`
`EXHIBIT LIST
`
`First Amended Complaint in Mentor Graphics Corp. v. EVE-USA, Inc.
`and Emulation and Verification Engineering, SA, 6:06-CV-00341-AA
`(D. OR., filed March 13, 2006)
`
`Defendants’ Unopposed Motion By Special Appearance For Extension
`Of Time To Respond To Plaintiff’s First Amended Complaint in Mentor
`Graphics Corp. v. EVE-USA, Inc. and Emulation and Verification
`Engineering, SA, 6:06-CV-00341-AA (D. Or., filed May 23, 2006)
`
`Order of Dismissal in Mentor Graphics Corp. v. EVE-USA, Inc. and
`Emulation and Verification Engineering, SA, 6:06-CV-00341-AA (D.
`Or., filed November 20, 2006)
`
`Complaint for Declaratory Judgment and Injunctive Relief in Synopsys,
`Inc., EVE-USA, Inc. and Emulation and Verification Engineering, S.A.
`v. Mentor Graphics Corp., 3:12-cv-05025 (N.D. Cal., filed September
`27, 2012)
`
`Banner & Witcoff, Ltd.’s “Messenger Log”
`
`October 4, 2012 Synopsys Press Release “Synopsys Acquires EVE”
`
`EVE-USA’s Supplemental Corporate Disclosure Statement, Docket
`No. 7, filed October 26, 2012 in Synopsys, Inc. et al. v. Mentor
`Graphics Corp., 3:12-CV-05025 (N.D. Cal. filed September 27, 2012)
`
`Jansen, D., The Electronic Design Automation Handbook, Kluwer
`Academic Publishers, 2003, Chapter 2
`
`Bhatnagar, Advanced ASIC Chip Synthesis: Using Synopsys® Design
`Compiler™ and PrimeTime®, Kluwer Academic Publishers, 1999
`
`MG 2010
`
`Gregory et al. U.S. Patent No. 5,937,190
`
`ii
`
`
`
`

`

`
`
`MG 2011
`
`MG 2012
`
`MG 2013
`
`MG 2014
`
`MG 2015
`
`MG 2016
`
`MG 2017
`
`MG 2018
`
`MG 2019
`
`MG 2020
`
`MG 2021
`
`MG 2022
`
`MG 2023
`
`HDL Compiler™ for VHDL User Guide, Version F-2011.09-SP4, March
`2012, SYNOPSYS, Section 4
`
`Plaintiffs’ Opposition to Mentor Graphics Corporation’s Motion to
`Transfer, dated January 25, 2013
`
`Notice of Incomplete Petition, mailed November 30, 2012 in CMI Corp.
`v. Yoshiharu, et. al., PTAB Case IPR 2013-00066
`
`Response to Notice of Incomplete Petition Issued November30, 2012,
`filed November 30, 2012 in CMI Corp. v. Yoshiharu, et. al., PTAB
`Case IPR 2013-00066
`
`Notice of Filing Date Accorded to Petition and Time for Filing Patent
`Owner Preliminary Response, mailed December 5, 2012 in CMI Corp.
`v. Yoshiharu, et. al., PTAB Case IPR 2013-00066
`
`Declaration of Allison Anderson
`
`Notice of Filing Date Accorded to Petition and Notice for Setting the
`Time Period for Filing Patent Owner Preliminary Response
`
`[Proposed] Patent Owner’s Requests for Production To Petitioner
`
`[Proposed] Patent Owner’s Interrogatories To Petitioner
`
`[Proposed] Patent Owner’s Requests for Admission To Petitioner
`
`[Proposed] Patent Owner’s Notice of Deposition of Petitioner
`Synopsys
`
`Assignment of the ‘376 Patent from inventors to Mentor Graphics Corp
`
`Notice of Party Name Change, filed March 22, 2013, in EVE-USA, Inc.
`and Emulation and Verification Engineering, S.A. v. Mentor Graphics
`Corp., 3:12-cv-05025 (N.D. Cal., filed September 27, 2012)
`
`MG 2024
`
`Slide presentation “Meeting Verification Challenges” by Luc Burgun,
`VP, Synopsys Emulation Division, Verification Group, November 2012
`
`iii
`
`
`
`

`

`
`
`MG 2025
`
`MG 2026
`
`MG 2027
`
`MG2028
`
`MG2029
`
`Currently Filed
`
`MG2030
`
`MG2031
`
`MG2032
`
`MG2033
`
`
`Silicon Valley Wire press release “Mountain View Based Synopsys
`Acquires EVE,” dated October 4, 2012
`
`LinkedIn Profile of Luc Burgun listing his employment history
`
`Declaration of Majid Sarrafzadeh, PH.D in Support of Patent Owner
`Response, including Exhibits A through E thereto
`
`Declaration of Michael Sapoznikow in Support of Mentor Graphics
`Corporation's Motion for Partial Summary Judgment, filed 05/31/13 in
`Case 3:10-cv-00954-MO Doc. 369 (exhibit 5)
`
`Declaration Of Patrick M. Bible In Support Of Mentor Graphics
`Corporation’s Motion For Partial Summary Judgment, filed 05/31/13 in
`Case 3:10-cv-00954-MO Doc. 368 (exhibits 2, 3, 8, 9-11, 15, 18-21,
`27, 30, 32-34, 40)
`
`Annotated Figure 13 of the Gregory et al. ‘109 Patent (Hutchings
`Deposition Exhibit)
`
`Annotated Figure 17 of the Gregory et al. ‘109 Patent (Hutchings
`Deposition Exhibit)
`
`Transcript of Deposition of Brad Hutchings Ph.D. conducted
`September 20, 2013
`
`Declaration of William D. Davis
`
`iv
`
`
`
`

`

`
`
`The request to substitute claim 37 for claim 2 is hereby withdrawn. Novelty and non-
`
`obviousness of the substitute claims over Gregory are established in Patent Owner’s
`
`Motion, at 11-14. Petitioner’s opposition to the Motion fails to raise any substantial new
`
`issues in this regard.
`
`I.
`
`Petitioner and Its Expert Improperly Interpret the Substitute Claims
`The plain meaning of the claimed “instrumentation logic comprising instrumentation
`
`logic circuitry that is additional to circuitry specified in the source code” requires added
`
`elements that perform logical operations (e.g., logic gates). Wires and/or I/Os of a circuit
`
`design do not perform any logical operations. Petitioner provides no support for arguments
`
`to the contrary. Further, substitute claims 34 and 36 recite that the instrumentation signal is
`
`indicative of an execution status of the identified at least one statement within the RTL
`
`synthesizable source code. 1 Dr. Hutchings opinions are not competent as he admitted that
`
`he had formed no opinion regarding the meaning of “execution status.” Hutchings Dep. T.
`
`(Ex. 2032) at 35-36. Similarly, neither Petitioner nor Dr. Hutchings have addressed the claim
`
`limitation “instrumentation signal,” requiring, for all claims, that the signal indicate whether a
`
`corresponding statement of the RTL synthesizable source code is active. See Sarrafzadeh
`
`Decl. (Ex. 2027) at ¶ 37.
`
`1 Petitioner’s opposition only addresses the language added in the claims. The alleged
`
`incorporation of arguments by reference (Opposition at 3) violates 37 C.F.R. § 42.6(a)(3).
`
`
`
`1
`
`

`

`
`
`II.
`
`Petitioner’s Reading of the Substitute Claims on Gregory is Faulty
`Gregory’s probe statements do not result in a gate level netlist with added logic
`
`providing an instrumentation signal. Gregory’s “tempin” and “tempout” are merely flags or
`
`labels used to preserve selected circuitry through post-synthesis optimization. Motion at 12-
`
`13; Sarrafzadeh Decl. ¶¶ 44, 51-53 and 61-63. These connections (wires) do not have
`
`additional logic associated with them. Id. at ¶ 45. Dr. Hutchings’ statement (Decl at ¶ 29)
`
`that “logic circuitry is broader than logic gates and could include additional wires and
`
`input/output connections” misses the point. As Dr. Hutchings testified, it is the logic gates in
`
`Gregory’s logic circuit that perform logic functions, not wires and I/O. Hutchings Dep. T. at
`
`38-45. Hence, added wires and I/O do not constitute additional logic circuitry. Dr. Hutchings
`
`admitted that tempin and tempout, as shown, e.g., in Fig. 18, are directly connected to each
`
`other such that the circuit function is unaltered (Hutchings Dep. T. at 68 and 71), i.e., the
`
`connection is only a wire that by itself does not constitute additional logic circuitry.
`
`Petitioner’s comparison of Figs. 14 and 18 in Gregory does not show additional logic
`
`resulting from Gregory’s probe statements. Figs. 14 and 18 are respectively optimized from
`
`Figs. 13 and 17, which Dr. Hutchings now concedes include identical functions and no
`
`discernible difference in logic. Hutchings Dep. T. at 56-57. Dr. Hutchings retracted ¶ 33 of
`
`his Declaration as inaccurate. Hutchings Dep. T. at 27-28 and 54-55. Figs. 14 and 18 could
`
`not include logic circuitry that is additional to circuitry specified in the source code, because
`
`both Fig. 14 and Fig. 18 have been reduced from the circuitry specified in the respective
`
`
`
`2
`
`

`

`
`
`source code, i.e., as reflected in Figs. 13 and 17. Whether one optimization (i.e., Fig. 18
`
`based on probes) reduces the gate count less than another optimization (i.e., Fig. 14 based
`
`on no probes) is entirely irrelevant, because neither optimization includes logic circuitry that
`
`is additional to circuitry specified in the source code from which both Figs 14 and 18 are
`
`optimized. Petitioner’s reasoning based on comparing Figs. 7 and 8 is similarly deficient.
`
`Petitioner further fails to demonstrate that Gregory’s “tempin” and “tempout” indicate
`
`execution status of a corresponding statement, as required by substitute claims 34 and 36,
`
`or whether the statement is active as required by the “instrumentation signal” recited in all
`
`the claims. The opposition fails to address these claim requirements, and Dr. Hutchings’
`
`opinions on anticipation and obviousness are incompetent and entitled to no weight, for at
`
`least the reason that he formed no opinion on the meaning of “execution status.” Hutchings
`
`Dep. T. at 35-36. Gregory does not disclose functionally simulating a gate level netlist, or
`
`any other means of obtaining an indication of execution status using a gate level netlist.
`
`Hutchings Dep. T. at 47-51.
`
`Petitioner’s Alleged “Knowledge And Skill Possessed By An Ordinarily Skilled
`III.
`Artisan” Fails To Rebut The Demonstrated Non-Obviousness
`The FPGA (emulation) related disclosures of Petitioner’s cited Exhibits 1014-1018 do
`
`not remedy Gregory’s deficiencies. First, Gregory is concerned only with aspects of gate-
`
`level debugging (e.g., area study, path delay analysis) to which functional simulation is not
`
`applicable. Thus, the Petitioner’s attempt to relate the FPGA functional simulation referred
`
`to in the references to Gregory’s debugging of optimized netlists is entirely misplaced. See
`
`
`
`3
`
`

`

`
`
`Hutchings Dep. T. at 47-51 (Dr. Hutchings could point to no disclosure in Gregory of
`
`functionally simulating a gate level netlist). Additionally, the FPGA disclosures of routing a
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`signal to an unused I/O does not disclose adding such routing to a gate level netlist. Indeed,
`
`exhibits1014 (p. 65) and 1017 (p. 1036) explicitly disclose the opposite by storing such
`
`routing separately from the “real design.” Moreover, while Dr. Hutchings testified (e.g., Dep.
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`T. at 75-76, 81) that I/O might be originally specified in a gate level netlist then optimized
`
`away, Gregory’s system is premised on the conflicting principle of primary netlist I/O not
`
`being optimized away as a way of preserving a signal. So, Dr. Hutchings’ testimony only
`
`serves to further illustrate the incompatibility of the cited teachings with Gregory. Still further,
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`routing and I/O are not logic, and thus, not additional logic circuitry as the claims require.
`
`Petitioner, as confirmed in the conference call with the Board on September 25,
`
`2013, does not rely upon the Boubezari et al. patent (Ex. 1012) as prior art. Nonetheless, to
`
`disprove the asserted prior art status of the reference under 35 U.S.C. § 102(e), Patent
`
`Owner submits herewith a Declaration of William Davis (Ex. 2033) establishing, prior to the
`
`102(e) date, conception of the claimed inventions, evidenced at least by the inventors’ initial
`
`disclosure article received by Mr. Davis before January 9, 1998, which describes every
`
`feature of the substitute claims. Davis Decl. (Ex. 2033) ¶¶ 6-7. Reasonable diligence toward
`
`a constructive reduction to practice extending back from the effective filing date of the `376
`
`patent to before the 102(e) date is evidenced by Mr. Davis’ and the inventors’ efforts in
`
`preparing the parent application (Id. at ¶¶ 8-12), which is substantially the same to the
`
`
`
`4
`
`

`

`
`
`application of the ‘376 patent (Id. at ¶ 3), and fully supports the substitute claims (see
`
`Motion at 6-8). C.f., Walker v. Bailey, 245 F.2d 486, 490 (C.C.P.A. 1957).
`
`Being neither relied upon as prior art, nor constituting prior art in fact, Boubezari is
`
`not competent evidence of what was within the knowledge and skill of one of ordinary skill in
`
`the art at the time of the invention. Petitioner’s citation to Geo M. Martin Co. v. Alliance
`
`Mach. Sys. Int’l, LLC, 618 F.3d 1294, 1305-06 (Fed. Cir. 2010) is inapposite. The holding in
`
`that case was strictly limited to a situation where evidence of a near-simultaneously
`
`invention was coupled with strong evidence of obviousness based on other references, and
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`where there were multiple examples of simultaneous invention. See Apple, Inc., v.
`
`Samsung Elecs. Co., 877 F. Supp.2d 838, 881 (N. D. Cal. 2012) rev’d on other grounds,
`
`695 F.3D 1370 (Fed. Cir. 2012). Petitioner’s failure to present a strong showing of
`
`obviousness based on other references, along with Boubezari being the only alleged
`
`evidence of simultaneous invention, render the alleged evidence insufficient to demonstrate
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`obviousness. C.f., id.
`
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`Dated: September 26, 2013
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`Respectfully submitted,
`MENTOR GRAPHICS CORP.
`/Christopher L. McKee/
`Christopher L. McKee, Reg. No. 32,384
`Michael S. Cuviello, Reg. No. 59,255
`Banner & Witcoff, Ltd
`1100 13th Street, NW Suite 1200
`Washington, DC 20005
`
`
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`
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`By:
`
`
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`5
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`

`

`
`
`CERTIFICATE OF SERVICE
`
`The undersigned certifies service on the Petitioner, pursuant to 37 C.F.R. § 42.6(e)
`
`and agreement of the parties, by email delivery of a true copy of the foregoing PATENT
`
`OWNER’S REPLY IN SUPPORT OF ITS SUBSTITUTE MOTION TO AMEND UNDER 37
`
`C.F.R. § 42.121 to counsel of record for Petitioner as follows:
`
`William H. Wright, Esq.
`wwright@orrick.com
`
`Travis Jensen, Esq.
`tjensen@orrick.com
`
`
`
`
`
`
` /Christopher L. McKee/
`Dated: September 26, 2013
`
`Christopher L. McKee
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