Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 1 of 12
`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 1 of 12
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`EXHIBIT F
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`EXHIBIT F
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 2 of 12
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`IN THE UNITED STATES DISTRICT COURT
`FOR THE WESTERN DISTRICT OF TEXAS
`WACO DIVISION
`
`PARKERVISION, INC.,
`
`
`Plaintiff,
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`
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`v.
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`REALTEK SEMICONDUCTOR CORP.,
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`Defendant.
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`NO. 6:22-cv-01162-ADA
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`§
`§
`§
`§
`§
`§
`§
`§
`§
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`§
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`DEFENDANT’S DISCLOSURE OF EXTRINSIC EVIDENCE
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`Pursuant to the Parties’ Scheduling Order and the Order Governing Proceedings – Patent
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`Cases, Defendant Realtek Semiconductor Corporation (“Defendant” or “Realtek”) discloses the
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`following extrinsic evidence for U.S. Patent No. 6,049,706 (the “’706 patent”); 6,266,518 (the
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`“’518 patent”); U.S. Patent No. 7,292,835 (the “’835 patent”); and U.S. Patent No. 8,660,513 (the
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`“’513 patent”) (collectively the “Patents-in-Suit”). Copies of the disclosed extrinsic evidence are
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`being concurrently produced today. Realtek reserves the right to supplement and/or amend its
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`disclosures in light of disclosures of extrinsic evidence and/or disclosures of bases for proposed
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`claim constructions, including expert testimony, made by ParkerVision, Inc. (“Plaintiff” or
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`“ParkerVision”) and/or other developments in this case. Realtek notes that the parties are engaged
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`in ongoing discussions in an effort to reach agreed constructions and narrow potential claim
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`construction disputes and reserves the right to supplement and/or amend its disclosures in light of
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`those discussions.
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 3 of 12
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`The following disclosure is based upon information currently available to Realtek. To date,
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`Plaintiff has not produced sufficient infringement contentions. Moreover, Realtek’s identification
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`of extrinsic evidence is exemplary and not exhaustive. Realtek has not been apprised of the extent
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`to which Plaintiff will rely on extrinsic evidence and reserves the right to rely on additional
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`extrinsic evidence to the extent Plaintiff introduces extrinsic evidence that is inconsistent with the
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`plain and ordinary meaning of the terms from the vantage point of a person of ordinary skill in the
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`art at the time of filing and/or invention of the subject claims.
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`Realtek does not believe expert testimony is necessary for claim construction. Realtek
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`reserves the right to designate an expert to testify if ParkerVision intends to rely on expert
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`testimony or in response to ParkerVision’s identification of extrinsic evidence. Realtek therefore
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`will not designate an expert witness at this time.
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`Subject to the reservations herein, Realtek discloses the below initial extrinsic evidence for
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`the claim terms identified as requiring construction.
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`2
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 4 of 12
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`
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`Terms Previously Construed1
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`No. CLAIM TERM
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`“under-sampling”
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`1
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`ASSERTED
`CLAIMS
`’706: 8, 19
`
`2
`
`“harmonic”
`
`’706: 8, 19
`’518: 1, 2
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`EXTRINSIC EVIDENCE
`
`Realtek’s proposal is the same as proposed by
`Qualcomm in the Qualcomm 719 Case and
`similar to the construction proposed by Intel in
`the Intel 562 Case. Realtek adopts Qualcomm’s
`and Intel’s evidence relied on in the Qualcomm
`719 Case and the Intel 562 Case.
`
`Realtek’s proposal is the same as proposed by
`Intel in the Intel 562 Case and by LG in the LG
`
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`1 The terms listed or terms similar to those listed have been previously construed in Federal
`Court and/or the United States Patent and Trademark Office (“PTAB”). Unless otherwise
`indicated, for purposes of simplifying the claim construction proceedings in this case and without
`conceding the constructions of these terms, Realtek proposes the parties adopt certain
`constructions already decided in prior matters involving the asserted and related patents,
`including but not limited to Parkervision, Inc. et al v. TCL Technology Group Corp., 5:20-cv-
`01030 (C.D. Cal. May 14, 2020); Parkervision, Inc. v. Apple Inc. et al, 3:15-cv-01477 (M.D. Fla.
`Dc. 14, 2015); ParkerVision, Inc. v. Buffalo Inc., 6:20-cv-01009 (W.D. Tex. Oct. 30, 2020);
`ParkerVision, Inc. v. Hisense Co., Ltd. et al, 6:20-cv-00870 (W.D. Tex. Sept. 24, 2020);
`ParkerVision, Inc. v. Hisense Co., Ltd. et al, 6:21-cv-00562 (W.D. Tex. June 2, 2021);
`ParkerVision, Inc. v. Intel Corporation, 6:20-cv-00108 (W.D. Tex. February 11, 2020) (“Intel
`108 Case”); ParkerVision, Inc. v. Intel Corporation, 6:20-cv-00562 (W.D. Tex. June 24, 2020)
`(“Intel 562 Case”); ParkerVision, Inc. v. LG Electronics Inc., 6:21-cv-00520 (W.D. Tex. May
`22, 2021) (“LG 520 Case”); ParkerVision, Inc. v. LG Electronics Inc. et al, 2:17-cv-05359
`(D.N.J. July, 21, 2017); ParkerVision, Inc. v. MediaTek Inc. et al, 6:22-cv-01163 (W.D. Tex.
`Nov. 10, 2022); ParkerVision, Inc. v. MediaTek Inc. et al, 6:23-cv-00375 (W.D. Tex. May 16,
`2023); ParkerVision, Inc. v. NXP Semiconductors N.V. et al, 6:23-cv-00389 (W.D. Tex. May 19,
`2023); ParkerVision, Inc. v. QUALCOMM Incorporated et al, 6:14-cv-00687 (M.D. Fla. May 2,
`2014); Parkervision, Inc. v. Qualcomm Incorporated, 3:11-cv-00719 (M.D. Fla. July 20, 2011)
`(“Qualcomm 719 Case); ParkerVision, Inc. v. TCL Industries Holdings Co., Ltd. et al, 6:20-cv-
`00945 (W.D. Tex. Oct. 12, 2020); ParkerVision, Inc. v. TCL Industries Holdings Co., Ltd. et al,
`6:22-cv-01158 (W.D. Tex. Nov. 7, 2022); ParkerVision, Inc. v. Texas Instruments Incorporated,
`6:23-cv-00384 (W.D. Tex. May 18, 2023); ParkerVision, Inc. v. ZyXEL Communications
`Corporation, 6:20-cv-01010 (W.D. Tex. Oct. 30, 2020); PTAB matters IPR2014-00946,
`IPR2014-00947, IPR2014-00948, IPR2014-01107, IPR2015-01807, IPR2015-01819, IPR2015-
`01822, IPR2015-01825, IPR2015-01828, IPR2015-01829, IPR2015-01831, IPR2015-01832,
`IPR2015-01833, IPR2015-01834, IPR2020-01265, IPR2020-01302, IPR2021-00346, IPR2021-
`00985 and IPR2022-00246, IPR2021-00990, IPR2022-00245; and any future matters that may
`bear on the construction of these terms. Realtek reserves the right to appeal these constructions,
`and further reserves the right to adopt defendants’ or petitioners’ arguments made in any of the
`aforementioned cases for purposes of appeal.
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 5 of 12
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`3
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`4
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`5
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`6
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`“said control signal
`comprises a train of
`pulses having pulse
`widths that are
`established to
`improve energy
`transfer from said
`input signal to said
`down-converted
`image”
`“switch” /
`“switches”
`
`“establishing
`apertures of said
`pulses to increase
`the time that said
`switch is closed for
`a purpose of
`reducing an
`impedance of said
`switch”
`“widening
`apertures of said
`pulses… by a non-
`negligible amount
`that tends away
`from zero time in
`duration to extend
`the time that said
`switch is closed for
`a purpose of
`increasing energy
`transferred from
`said input signal” /
`“widening of said
`apertures…
`prevents substantial
`voltage
`reproduction of
`said input signal”
`
`’706: 18
`
`520 case. Realtek adopts Intel’s and LG’s
`evidence relied on in the Intel 562 Case and the
`LG 520 case.
`Realtek’s proposal is the same as proposed by
`LG in the LG 520 Case. Realtek adopts LG’s
`evidence relied on in the LG 520 Case.
`
`Realtek’s proposal is the same as construed by
`the Court in the Intel 108 Case and the Intel 562
`Case. Realtek adopts the parties’ evidence relied
`on in the Intel 108 Case and the Intel 562 Case.
`
`’706: 86, 87,
`88, 91, 93,
`97
`’835: 18-20
`’513: 19
`’706: 87, 97 Realtek’s proposal is the same as proposed by
`LG in the LG 520 Case. Realtek adopts LG’s
`evidence relied on in the LG 520 Case.
`
`’706: 88, 91,
`97
`
`Realtek’s proposal is the same as proposed by
`LG in the LG 520 Case. Realtek adopts LG’s
`evidence relied on in the LG 520 Case.
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`4
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 6 of 12
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`7
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`8
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`“low impedance
`load” / “low
`impedance loads”
`“integrating the
`energy”
`
`’706: 97
`’518: 13
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`’518: 1, 29
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`Realtek’s proposal is the same as proposed by
`LG in the LG 520 Case. Realtek adopts LG’s
`evidence relied on in the LG 520 Case.
`Realtek’s proposal is the same as construed by
`the Court in the Qualcomm 719 Case. Realtek’s
`proposal is also the same as agreed to by the
`parties and construed by the PTAB in IPR2014-
`00946. Realtek adopts the parties’ evidence
`relied on in the Qualcomm 719 Case and in
`IPR2014-00946.
`
`Realtek’s proposal is the same as proposed by
`ParkerVision in the LG 520 Case. Realtek adopts
`ParkerVision’s evidence relied on in the LG 520
`Case.
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`9
`
`10
`
`“A cable modem
`for down-
`converting an
`electromagnetic
`signal having
`complex
`modulations”
`“storage module”/
`“storage device”/
`“energy storage
`element”
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`11
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`“coupled”
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`12
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`“sampling
`aperture”
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`13
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`“modulated carrier
`signal”
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`’835: 1
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`’835: 1, 18,
`20
`’513: 19
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`Realtek’s proposal is the same as construed by
`the Court in the LG 520 Case, the Intel 562 Case,
`and the Intel 108 Case. Realtek adopts the
`parties’ evidence relied on in the LG 520 Case,
`the Intel 562 Case, and the Intel 108 Case.
`
`’835: 18, 20 Realtek’s proposal is the same as construed by
`the Court in the Intel 108 Case. Realtek adopts
`the parties’ evidence relied on in the Intel 108
`Case.
`
`Realtek’s proposal is the same as proposed by
`LG in the LG 520 Case and by Intel in the Intel
`108 Case. Realtek adopts LG’s and Intel’s
`evidence relied on in the LG 520 Case and the
`Intel 108 Case.
`
`Realtek’s proposal is the same as construed by
`the Court in the LG 520 Case and the Intel 108
`Case, and is the same as construed by the Court
`in the Intel 562 Case for a similar term. Realtek
`adopts the parties’ evidence relied on in the LG
`520 Case, the Intel 108 Case, and the Intel 562
`Case.
`
`
`’513: 19
`
`’513: 19
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`5
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 7 of 12
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`14
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`“system for
`frequency down-
`converting”
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`’513: 19
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`Realtek’s proposal is the same as construed by
`the Court in the LG 520 Case and the Intel 108
`Case. Realtek adopts the parties’ evidence relied
`on in the LG 520 Case and the Intel 108 Case.
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`New Proposed Claim Terms
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`1
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`No. CLAIM TERM
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`“in-phase
`oscillating signal”
`and “quadrature-
`phase oscillating
`signal”
`
`Asserted
`Claims
`’835: 1, 2,
`18
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`Extrinsic Evidence
`
`
`
`In-phase signal, Comprehensive Dictionary
`of Electrical Engineering (1998)
` Quadrature, Comprehensive Dictionary of
`Electrical Engineering (1998)
` Quadrature amplitude modulation (QAM),
`Comprehensive Dictionary of Electrical
`Engineering (1998)
` Quadrature detector, Comprehensive
`Dictionary of Electrical Engineering (1998)
` Quadrature FM demodulator,
`Comprehensive Dictionary of Electrical
`Engineering (1998)
` Quadrature phased signals, Comprehensive
`Dictionary of Electrical Engineering (1998)
` Quadrature signal, Comprehensive
`Dictionary of Electrical Engineering (1998)
` Quadrature, The IEEE Standard Dictionary
`of Electrical and Electronics Terms (1996)
` Quadrature modulation, The IEEE Standard
`Dictionary of Electrical and Electronics
`Terms (1996)
`In phase, The Illustrated Dictionary of
`Electronics (1991)
`In-phase voltage, The Illustrated Dictionary
`of Electronics (1991)
` Quadrature, The Illustrated Dictionary of
`Electronics (1991)
` Quadrature amplifier, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature component, The Illustrated
`Dictionary of Electronics (1991)
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`
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`
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`6
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 8 of 12
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`
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`’835: 2
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`2
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`“quadrature-phase
`oscillating signal is
`out of phase with
`said in-phase
`oscillating signal
`by substantially 90
`degrees”
`
` Quadrature detector, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature modulation, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature portion, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature voltage, The Illustrated
`Dictionary of Electronics (1991)
`In phase, The Illustrated Dictionary of
`Electronics (1997)
` Quadrature, The Illustrated Dictionary of
`Electronics (1997)
` Quadrature amplifier, The Illustrated
`Dictionary of Electronics (1997)
` Quadrature component, The Illustrated
`Dictionary of Electronics (1997)
` Quadrature modulation, The Illustrated
`Dictionary of Electronics (1997)
` Quadrature portion, The Illustrated
`Dictionary of Electronics (1997)
` Quadrature voltage, The Illustrated
`Dictionary of Electronics (1997)
`In phase, Modern Dictionary of Electronics
`(1999)
` Quadrature, Modern Dictionary of
`Electronics (1999)
` Quadrature component, Modern Dictionary
`of Electronics (1999)
` Quadrature modulation, Modern Dictionary
`of Electronics (1999)
` Quadrature phase detector, Modern
`Dictionary of Electronics (1999)
` Quadrature portion, Modern Dictionary of
`Electronics (1999)
`In-phase signal, Comprehensive Dictionary
`of Electrical Engineering (1998)
` Quadrature, Comprehensive Dictionary of
`Electrical Engineering (1998)
` Quadrature amplitude modulation (QAM),
`Comprehensive Dictionary of Electrical
`Engineering (1998)
`
`
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`
`
`7
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`

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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 9 of 12
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`
`
`
`
` Quadrature detector, Comprehensive
`Dictionary of Electrical Engineering (1998)
` Quadrature FM demodulator,
`Comprehensive Dictionary of Electrical
`Engineering (1998)
` Quadrature phased signals, Comprehensive
`Dictionary of Electrical Engineering (1998)
` Quadrature signal, Comprehensive
`Dictionary of Electrical Engineering (1998)
` Quadrature, The IEEE Standard Dictionary
`of Electrical and Electronics Terms (1996)
` Quadrature modulation, The IEEE Standard
`Dictionary of Electrical and Electronics
`Terms (1996)
`In phase, The Illustrated Dictionary of
`Electronics (1991)
`In-phase voltage, The Illustrated Dictionary
`of Electronics (1991)
` Quadrature, The Illustrated Dictionary of
`Electronics (1991)
` Quadrature amplifier, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature component, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature detector, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature modulation, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature portion, The Illustrated
`Dictionary of Electronics (1991)
` Quadrature voltage, The Illustrated
`Dictionary of Electronics (1991)
`In phase, The Illustrated Dictionary of
`Electronics (1997)
` Quadrature, The Illustrated Dictionary of
`Electronics (1997)
` Quadrature amplifier, The Illustrated
`Dictionary of Electronics (1997)
` Quadrature component, The Illustrated
`Dictionary of Electronics (1997)
` Quadrature modulation, The Illustrated
`Dictionary of Electronics (1997)
`
`
`
`8
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 10 of 12
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`DATED: October 17, 2023
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`
`
`
`
`
` Quadrature portion, The Illustrated
`Dictionary of Electronics (1997)
` Quadrature voltage, The Illustrated
`Dictionary of Electronics (1997)
`In phase, Modern Dictionary of Electronics
`(1999)
` Quadrature, Modern Dictionary of
`Electronics (1999)
` Quadrature component, Modern Dictionary
`of Electronics (1999)
` Quadrature modulation, Modern Dictionary
`of Electronics (1999)
` Quadrature phase detector, Modern
`Dictionary of Electronics (1999)
` Quadrature portion, Modern Dictionary of
`Electronics (1999)
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`
`
`Respectfully submitted,
`
`
`
`
`
`By: /s/ Lisa K. Nguyen
`Mark D. Siegmund
`State Bar No. 24117055
`CHERRY JOHNSON SIEGMUND JAMES
`PLLC
`The Roosevelt Tower
`400 Austin Avenue, 9th Floor
`Waco, TX 76701
`Telephone: (254) 732-2242
`Facsimile: (866) 627-3509
`msiegmund@cjsjlaw.com
`Lisa K. Nguyen
`ALLEN & OVERY LLP
`550 High Street, Second Floor
`Palo Alto, CA 94301
`Telephone: (650) 388-1724
`lisa.nguyen@allenovery.com
`
`Noah A. Brumfield
`Megan M. Ines
`Emily P. Lipka
`ALLEN & OVERY LLP
`1101 New York Avenue, NW
`Washington, DC 20005
`
`
`
`9
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`

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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 11 of 12
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`Telephone: (202) 683-3881
`noah.brumfield@allenovery.com
`megan.ines@allenovery.com
`emily.lipka@allenovery.com
`
`Grace I. Wang
`ALLEN & OVERY LLP
`1221 Avenue of the Americas
`New York, NY 10020
`Telephone: (212) 756-1143
`grace.wang@allenovery.com
`
`Attorneys for Defendant
`Realtek Semiconductor Corp.
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`10
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`Case 6:22-cv-01162-ADA Document 72-6 Filed 10/31/23 Page 12 of 12
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`CERTIFICATE OF SERVICE
`
`The undersigned hereby certifies that on October 17, 2023, the foregoing was served on
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`all counsel of record by e-mail.
`
`By: /s/ Lisa K. Nguyen
` Lisa K. Nguyen
`
`11
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