`
`David C. Vondle(dvondle@akingump.com)
`Akin Gump Strauss Hauer & Feld LLP
`1333 New Hampshire Avenue, N.W.
`Washington, DC 20036
`Tel. (202) 887-4000
`Fax. (202) 887-4288
`Email: ccarrano@akingump.com,
` dvondle@akingump.com
`
`
`
`
`
`
`
`
`__________________________________
`
`Inter Partes Review No.: Unassigned
`__________________________________
`
`
`
`DECLARATION OF STUART LIPOFF UNDER 37 C.F.R. § 1.68
`IN SUPPORT OF PETITION FOR INTER PARTES REVIEW OF
`U.S. PATENT NO. 7,752,650
`
`
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`____________________________________________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`____________________________________________________
`
`
`
`VIZIO, Inc.
`Petitioner
`
`v.
`
`Personalized Media Communications, LLC
`Patent Owner
`
`VIZIO, Inc. Exhibit 1001
`1 of 115
`
`
`
`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`Table of Contents
`
`I.
`
`II.
`
`
`V.
`
`VI.
`
`
`
`IX.
`
`
`
`III.
`
`IV.
`
`
`INTRODUCTION ...............................................................................................................1
`BACKGROUND AND QUALIFICATIONS ......................................................................3
`A.
`Educational Background ..........................................................................................4
`B.
`Career History and Relevant Industry Participation ................................................4
`UNDERSTANDING OF PATENT LAW ............................................................................8
`BACKGROUND ............................................................................................................... 11
`A.
`Summary of the ’650 Patent .................................................................................. 11
`B.
`Representative Claim 1 ..........................................................................................12
`C.
`Background of the Field Relevant to the ’650 Patent ............................................13
`D.
`Summary of the Prosecution History .....................................................................21
`LEVEL OF ORDINARY SKILL IN THE PERTINENT ART ..........................................30
`BROADEST REASONABLE INTERPRETATION .........................................................31
`A.
`“digital television signals” .....................................................................................31
`B.
`“processor” .............................................................................................................32
`C.
`“digital video signals” ............................................................................................32
` DETAILED INVALIDITY ANALYSIS ............................................................................33 VII.
`
` BACKGROUND ON PRIOR ART REFERENCES .........................................................34 VIII.
`
`A.
`Background on Mustafa .........................................................................................34
`B.
`Background on Iijima ............................................................................................35
`C.
`Background on Campbell ......................................................................................36
`D.
`Background on Widergren .....................................................................................36
`THE CHALLENGED CLAIMS ARE INVALID OVER MUSTAFA ..............................37
`The Challenged Claims are Obvious Based on Mustafa in View of the
`A.
`Knowledge of One of Ordinary Skill in the Art .....................................................38
`Claim 1 is Obvious Over Mustafa in View of the Knowledge of
`1.
`One of Ordinary Skill in the Art ................................................................38
`Claim 2 is Obvious Over Mustafa in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................55
`Claim 4 is Obvious Over Mustafa in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................58
`Claim 18 is Obvious Over Mustafa in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................60
`
`2.
`
`3.
`
`4.
`
`i
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`VIZIO, Inc. Exhibit 1001
`2 of 115
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`
`
`6.
`
`X.
`
`
`
`
`
`XI.
`
`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`Claim 32 is Obvious Over Mustafa in View of the Knowledge of
`5.
`One of Ordinary Skill in the Art ................................................................63
`Claim 33 is Obvious Over Mustafa in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................64
`THE CHALLENGED CLAIMS ARE INVALID OVER MUSTAFA IN VIEW OF
`IIJIMA................................................................................................................................64
`A.
`Iijima ......................................................................................................................64
`B.
`The Combination of Mustafa and Iijima ................................................................66
`C.
`Mustafa in view of Iijima Renders Claims 1, 2, 4, 18, 32 and 33 Obvious ...........70
`THE CHALLENGED CLAIMS ARE INVALID OVER CAMPBELL ............................71
`Challenged Claims are Obvious Based on Campbell in View of the
`A.
`Knowledge of One of Ordinary Skill in the Art .....................................................71
`Claim 1 is Obvious Over Campbell in View of the Knowledge of
`1.
`One of Ordinary Skill in the Art ................................................................71
`Claim 2 is Obvious Over Campbell in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................90
`Claim 4 is Obvious Over Campbell in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................93
`Claim 18 is Obvious Over Campbell in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................95
`Claim 32 is Obvious Over Campbell in View of the Knowledge of
`One of Ordinary Skill in the Art ................................................................98
`Claim 33 .....................................................................................................99
`5.
`B. Widergren ...............................................................................................................99
`C.
`The Combination of Campbell and Widergren ....................................................102
`D.
`Campbell in view of Widergren Renders the Challenged Claims Obvious .........109
`SECONDARY CONSIDERATIONS OF NON-OBVIOUSNESS .................................. 110
`XII.
`
`
` CONCLUSION ................................................................................................................ 112 XIII.
`
`
`2.
`
`2.
`
`3.
`
`4.
`
`ii
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`VIZIO, Inc. Exhibit 1001
`3 of 115
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`
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`I, Stuart Lipoff, do hereby declare as follows:
`
`I.
`1.
`
`INTRODUCTION
`
`I have been retained as an expert witness on behalf of VIZIO, Inc.
`
`(“VIZIO”) for the above-captioned Petition for Inter Partes Review (“IPR”)
`
`of U.S. Patent No. 7,752,650 (“the ’650 Patent”). I am being compensated
`
`for my time in connection with this IPR at my standard consulting rate of
`
`$375 per hour. My compensation is not affected by the outcome of this
`
`matter.
`
`2.
`
`I have been asked to provide my opinions regarding whether or not Claims
`
`1, 2, 4, 18, 32, and 33 of the ’650 Patent (“the Challenged Claims”) are
`
`invalid as obvious to a person having ordinary skill in the art at the time of
`
`the alleged invention.
`
`3.
`
`The ’650 Patent issued on July 6, 2010, from U.S. Patent Appl. No. 08/460,
`
`711 (“the ’711 application”), filed on June 2, 1995. (Ex. 1002 at cover).
`
`The ’650 Patent alleges to be a continuation of a series of applications dating
`
`back to U.S. Patent Appl. No. 07/096,096 filed on September 11, 1987, now
`
`U.S. Patent No. 4,965,825 (“the ‘096 Application”). The ‘096 Application
`
`alleges to be a continuation-in-part of a series of applications dating back to
`
`U.S. Patent Appl. No. 06/317,519, now U.S. Patent No. 4,694,490 (“the ’519
`
`Application”).
`
`1
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`VIZIO, Inc. Exhibit 1001
`4 of 115
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`4.
`For the purposes of my Declaration, I have been asked to assume that the
`
`priority date of the alleged invention recited in the ’650 Patent is September
`
`11, 1987.
`
`5.
`
`The face of the ’650 Patent names John Christopher Harvey and James
`
`William Cuddihy as the named inventors, and identifies Personalized Media
`
`Communications, LLC as the named assignee. (Ex. 1002 at cover).
`
`6.
`
`In preparing this Declaration, I have reviewed the ’650 Patent, the file
`
`history of the ’650 Patent, numerous prior art references, and technical
`
`references from the time of the alleged invention.
`
`7.
`
`I understand that claims in an IPR are given their broadest reasonable
`
`interpretation in view of the patent specification and the understandings of
`
`one having ordinary skill in the relevant art.
`
`8.
`
`In forming the opinions expressed in this Declaration, I relied upon my
`
`education and experience in the relevant field of the art, and have considered
`
`the viewpoint of a person having ordinary skill in the relevant art, as of
`
`September 11, 1987. My opinions are based, at least in part, on the
`
`following references in view of the knowledge of one of ordinary skill in the
`
`art as of September 11, 1987:
`
`Reference
`U.S. Patent No. 4,789,895 to
`Mustafa, et al. (“Mustafa”)
`
`Date of Public Availability
`Filed April 30, 1987; Issued and
`Published on December 6, 1988
`
`2
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`VIZIO, Inc. Exhibit 1001
`5 of 115
`
`
`
`U.S. Patent No. 4,215,369 to Iijima
`(“Iijima”)
`
`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`(Ex. 1009 at Face)
`Filed December 15, 1978; Issued
`and Published on July 29, 1980 (Ex.
`1010 at Face)
`Filed November 27, 1981; Issued
`and Published on August 20, 1985
`(Ex. 1011 at Face)
`Filed December 15, 1978; Issued
`and Published November 24, 1981
`(Ex. 1012 at Face)
`
`U.S. Patent No. 4,536,791 to
`Campbell, et al. (“Campbell”)
`
`U.S. Patent No. 4,302,775 to
`Widergren, et al. (“Widergren”)
`
` BACKGROUND AND QUALIFICATIONS II.
`
`9. My name is Stuart Lipoff. I am currently the president of IP Action Partners
`
`Inc. and have over 40 years of experience in a wide variety of technologies
`
`and
`
`industries
`
`relating
`
`to data communications,
`
`including data
`
`communications over wireless and cable systems networks.
`
`10.
`
`I have been retained by VIZIO in connection with its request for inter partes
`
`review of the ’650 Patent. A copy of the ’650 Patent has been designated
`
`Ex. 1002. I have reviewed and am familiar with the ’650 Patent.
`
`11.
`
`I have been asked to provide my opinion regarding the validity of certain
`
`claims of the ’650 Patent. This Declaration includes a detailed discussion of
`
`my background and qualifications, the background of the technologies
`
`involved in and related to the ’650 Patent that would have been understood
`
`by a person of ordinary skill in the art at the time of the filing of the ’650
`
`Patent, various prior art references that disclose—either alone or in
`
`3
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`combination with each other—all of the relevant features of the Challenged
`
`Claim. The bases and reasons for my opinions are set forth in this
`
`Declaration.
`
`A. Educational Background
`I earned a B.S. degree in Electrical Engineering in 1968 from Lehigh
`
`12.
`
`University and a second B.S. degree in Engineering Physics in 1969, also
`
`from Lehigh University. I also earned a M.S. degree in Electrical
`
`Engineering from Northwestern University in 1974 and a MBA degree from
`
`Suffolk University in 1983.
`
`B. Career History and Relevant Industry Participation
`I am currently the president of IP Action Partners Inc., which is a consulting
`
`13.
`
`practice serving the telecommunications, information technology, media,
`
`electronics, and e-business industries.
`
`14.
`
`I hold a Federal Communications Commission
`
`(“FCC”) General
`
`Radiotelephone License and a Certificate in Data Processing (“CDP”) from
`
`the Association for Computing Machinery (“ACM”)-supported Institute for
`
`the Certification of Computing Professionals (“ICCP”), and I am a registered
`
`professional engineer
`
`(by examination)
`
`in
`
`the Commonwealth of
`
`Massachusetts.
`
`4
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`15.
`I am a fellow of the IEEE Consumer Electronics, Communications,
`
`Computer, Circuits, and Vehicular Technology Groups. I am also a member
`
`of the IEEE Consumer Electronics Society National Administration
`
`Committee, and was the Boston Chapter Chairman of the IEEE Vehicular
`
`Technology Society. I previously served as 1996-1997 President of the
`
`IEEE Consumer Electronics Society, have served as Chairman of the
`
`Society’s Technical Activities and Standards Committee, and am now VP of
`
`Publications for the Society. I have also served as an Ibuka Award
`
`committee member.
`
`16.
`
`I have also presented papers at many IEEE and other meetings. A listing of
`
`my publications is included as part of my curriculum vitae (“CV”), which is
`
`attached as Ex. 1031. For example, in Fall 2000, I served as general
`
`program chair for the IEEE Vehicular Technology Conference on advanced
`
`wireless communications technology, and I have organized sessions at The
`
`International Conference on Consumer Electronics and was the 1984
`
`program chairman. I also conducted an eight-week IEEE sponsored short
`
`course on Fiber Optics System Design. In 1984, I was awarded IEEE’s
`
`Centennial Medal and in 2000, I was awarded the IEEE’s Millennium
`
`Medal.
`
`5
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`VIZIO, Inc. Exhibit 1001
`8 of 115
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`17. As Vice President and Standards Group Chairman of the Association of
`
`Computer Users (“ACU”), I served as the ACU representative to the ANSI
`
`X3 Standards Group. For the FCC’s Citizens advisory committee on
`
`Citizen’s Band (“CB”) radio (“PURAC”), I served as Chairman of the task
`
`group on user rule compliance. I have been elected to membership in the
`
`Society of Cable Television Engineers (“SCTE”), the ACM, and The Society
`
`of Motion Picture and Television Engineers (“SMPTE”). I also served as a
`
`member of the USA advisory board to the National Science Museum of
`
`Israel, presented a short course on international product development
`
`strategies as a faculty member of Technion Institute of Management in
`
`Israel, and served as a member of the board of directors of The
`
`Massachusetts Future Problem Solving Program.
`
`18.
`
`I am a named inventor on seven United States patents and have several
`
`publications on data communications
`
`topics
`
`in Electronics Design,
`
`Microwaves, EDN, The Proceedings of the Frequency Control Symposium,
`
`Optical Spectra, and IEEE publications.
`
`19. For 25 years, I worked for Arthur D. Little, Inc. (“ADL”), where I became
`
`Vice President and Director of Communications, Information Technology,
`
`and Electronics (“CIE”). Prior to my time at ADL, I served as a Section
`
`Manager for Bell & Howell Communications Company for four years, and
`
`6
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`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`prior to that, as a Project Engineer for Motorola’s Communications Division
`
`for three years.
`
`20. At ADL, I was responsible for the firm’s global CIE practice in laboratory-
`
`based contract engineering, product development, and technology-based
`
`consulting. At both Bell & Howell and Motorola, I had project design
`
`responsibility for wireless communication and paging products.
`
`21. While employed at ADL, over a 25 year period I worked on projects across
`
`multiple industry sectors including consumer, industrial, and military. These
`
`projects drew upon my technical expertise in information technology,
`
`communications systems, radio frequency, video, and audio.
`
`22. For example, I served as the leader of a project that developed a series of
`
`specifications for residential cable modems known as Data over Cable
`
`Service Interface Specification, or “DOCSIS.” The scope of work for this
`
`project included developing a roadmap and strategic framework for evolving
`
`the business from internet services to broadband services combining voice,
`
`data, and secure electronic content delivery. This project was performed by
`
`ADL under contract to the Multimedia Cable Network System (“MCNS”)
`
`consortium and the specifications resulting from that project have since been
`
`adopted by the United Nations as a global telecommunications specification.
`
`7
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`23. Following my time at ADL, I managed a project (through IP Action
`
`Partners) for Next Generation Network Architecture, LLC (“NGNA”) that
`
`produced a five-year planning horizon for services and technology in the
`
`cable industry. The services and vision were then mapped to overall
`
`architectures impacting network elements in the back office, head-end,
`
`outside plant, and customer premises, and documented in next generation
`
`network recommendations. The project involved coordination with senior
`
`technical staff of several multiple service operators (“MSOs”) as well as
`
`interactions with over one hundred suppliers and vendors of systems,
`
`software, and products in the cable industry.
`
`24. Additional
`
`information
`
`regarding my background, qualifications,
`
`publications, and presentations is provided in my CV, which is included as
`
`Exhibit 1031.
`
` UNDERSTANDING OF PATENT LAW
`III.
`25. Because I am an engineer and not an attorney, I have been provided with an
`
`understanding of patent law relevant to conducting the analysis given in this
`
`report. The following represents my understanding of these issues.
`
`26.
`
`I understand that prior art to the ’650 Patent includes patents and printed
`
`publications in the relevant art that predate the September 11, 1987, alleged
`
`priority date of the ’650 Patent.
`
`8
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`27.
`I understand that a claim is invalid if it is anticipated or obvious.
`
`Anticipation of a claim requires that every element of a claim be disclosed
`
`expressly or inherently in a single prior art reference, arranged in the prior
`
`art reference as arranged in the claim. Obviousness of a claim requires that
`
`the claim be obvious from the perspective of a person having ordinary skill
`
`in the relevant art at the time the alleged invention was made. I understand
`
`that a claim may be obvious in view of a single reference, or may be obvious
`
`from a combination of two or more prior art references.
`
`28.
`
`I understand that an obviousness analysis requires an understanding of the
`
`scope and content of the prior art, any differences between the alleged
`
`invention and the prior art, and the level of ordinary skill in evaluating the
`
`pertinent art.
`
`29.
`
`I further understand that certain factors may support or rebut the obviousness
`
`of a claim. I understand that such secondary considerations include, among
`
`other things, commercial success of the alleged, patented invention,
`
`skepticism of those having ordinary skill in the art at the time of the alleged
`
`invention, unexpected results of the alleged invention, any long-felt but
`
`unsolved need in the art that was satisfied by the alleged invention, the
`
`failure of others to make the alleged invention, praise of the alleged
`
`invention by those having ordinary skill in the art, and copying of the
`
`9
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`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`alleged invention by others in the field. I understand that there must be a
`
`nexus—a connection—between any such secondary considerations and the
`
`alleged invention. I also understand that contemporaneous and independent
`
`invention by others is a secondary consideration tending to show
`
`obviousness.
`
`30.
`
`I further understand that a claim is obvious if it unites old elements with no
`
`change to their respective functions, or alters prior art by mere substitution
`
`of one element for another known in the field, and that combination yields
`
`predictable results. While it may be helpful to identify a reason for this
`
`combination, common sense should guide and no rigid requirement of
`
`finding a teaching, suggestion, or motivation to combine is required. When
`
`a product is available, design incentives and other market forces can prompt
`
`variations of it, either in the same field or different one. If a person having
`
`ordinary skill in the relevant art can implement a predictable variation,
`
`obviousness likely bars its patentability. For the same reason, if a technique
`
`has been used to improve one device and a person having ordinary skill in
`
`the art would recognize that it would improve similar devices in the same
`
`way, using the technique is obvious. I understand that a claim may be
`
`obvious if common sense directs one to combine multiple prior art
`
`10
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`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`references or add missing features to reproduce the alleged invention recited
`
`in the claims.
`
`IV.
`
` BACKGROUND
`Summary of the ’650 Patent
`31. The ’650 Patent generally relates to the transmission of standard television
`
`A.
`
`signals enhanced with certain types of embedded control signals and/or
`
`digital data.
`
`32. Specifically, the Challenged Claims generally relate to methods of
`
`processing television and/or video signals at receiver stations. (Ex. 1002 at
`
`Claims 1, 2, 4, 18, 32 and 33). Figure 1 of the ’650 Patent depicts a simple
`
`embodiment of a receiver station:
`
`FIG. 1
`
`
`
`(Ex. 1002 at Fig. 1). The components of Figure 1 are all conventional and
`
`include a television tuner 215, divider 4, TV signal decoder 203,
`
`microcomputer 205, and TV monitor 202M. (Ex. 1002 at Fig. 1). Via
`
`conventional antenna, television tuner 215 receives a conventional television
`
`11
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`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`broadcast transmission. (Ex. 1002 at 10:44-46). Digital information is also
`
`embedded in the broadcast. (Ex. 1002 at 7:51-63). For example, in a
`
`television transmission, the information can be embedded in line 20 of the
`
`vertical blanking interval. (Ex. 1002 at 7:67-8:2). The digital information
`
`may include the “addresses of specific receiver apparatus controlled by the
`
`signals and instructions that identify particular functions the signals cause
`
`addressed apparatus to perform.” (Ex. 1002 at 7:59-63). TV Monitor 202M
`
`receives composite video and audio transmissions and presents a television
`
`video image and audio sound. (Ex. 1002 at Fig. 1, 11:20-23).
`
`B.
`
`Representative Claim 1
`33. Claim 1, which is representative of the Challenged Claims, is reproduced
`
`below:
`
`[Preamble] A method of television signal processing at a receiver
`
`station, said receiver station having a plurality of processors and a
`
`digital switch, said method comprising the steps of:
`
`[A] receiving an information transmission including digital television
`
`signals and a message stream;
`
`[B] detecting said message stream in said information transmission;
`
`programming a control processor to control said digital switch on the
`
`basis of information included in said message stream;
`
`12
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`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`[C] inputting a plurality of commands received in said message stream
`
`to a said control processor;
`
`[D] selecting a plurality of said digital television signals included in
`
`said information transmission in response to said commands, said
`
`selected plurality of said digital television signals being information
`
`segments of said information transmission;
`
`[E] controlling said digital switch to communicate each one of said
`
`selected plurality of said digital television signals to a signal
`
`processor; and
`
`[F] processing said selected plurality of said digital television signals
`
`to communicate video and audio signals to a television monitor.
`
`C.
`
`Background of the Field Relevant to the ’650 Patent
`34. As I mentioned above, the specification of the ’650 Patent generally relates
`
`to the transmission of standard television signals enhanced with certain types
`
`of embedded control signals. The specification of the ’650 Patent contains
`
`about 300 columns and covers a number of technology areas. In the
`
`following I will only discuss those aspects of technology that I believe are
`
`directly relevant to the Challenged Claims of the ’650. The technology
`
`outlined below represents the knowledge and understanding that one of
`
`ordinary skill in the art would have possessed in September 1987.
`
`13
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`35. The Challenged Claims relate to the transmission, reception and processing
`
`of television signals and to using control signals embedded in the television
`
`signals to control processing of these television signals.
`
`36.
`
`In 1987, standard broadcast television was ubiquitous and had been for
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`many years. The television signal format was, by that time, highly
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`standardized through the efforts of various industry participants. The basic
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`technological characteristics of monochrome television were established in
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`the late 1940s.
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`37. After the introduction of television in the early 1940s, there were subsequent
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`enhancements to support new technological advances, such as color, closed
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`captioning, Teletext, and stereophonic sound. Enhancements to television
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`were introduced very carefully because the base of installed television
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`receivers was so large that revolutionary changes would cause massive
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`obsolescence issues. It is for this reason that the introduction of color
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`television required that the new color television signal be compatible with
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`previously purchased monochrome sets.
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`38. The National Television System Committee (NTSC) standard was the
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`approved standard for over-the-air (OTA) transmissions of television signals
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`in the United States. This standard was adopted in 1941 by the FCC. The
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`NTSC standard was based on sequential transmission and uniform linear
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`scanning techniques, and was developed for use with CRT (cathode ray tube)
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`presentation technology.
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`39. An NTSC television signal conveys light intensity and positional reference
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`information. When the CRT receives a NTSC television signal, the electron
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`beam that creates the image on the CRT display screen is accordingly
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`modified based on the light intensity and positional information conveyed in
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`the NTSC signal. The electron beam that creates the image on the CRT
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`screen does so by going from left to right and top to bottom. This typically
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`occurs in real time, that is, the received picture intensity information is used
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`to directly drive the CRT as it is received.
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`40.
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`In order to simplify the design of the television receiver, the NTSC
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`television signal contains a number of synchronizing signals that coordinate
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`the movement of the electron beam across the face of the CRT screen.
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`These signals do not contain displayable information and occur when the
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`electron beam is not in the visible area of the television screen. Because
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`these non-displayable parts of the signal cannot be seen by the viewer,
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`various systems have been developed to transmit information in either
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`analog or digital form during these time periods. The so called “vertical
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`blanking interval” or VBI encompasses the scan lines at the top of the screen
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`and has been used for auxiliary signal transmission since at least the early
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
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`1970s. There is a corresponding area at the start of each scan line called
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`sometimes referred to as the “horizontal blanking interval” or HBI.
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`Information can be impressed on this part of the signal also, although the use
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`of the HBI for this purpose is less common.
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`41. Under the NTSC standard, the VBI consists of 21 scan lines, the first 9 of
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`which are using for synchronizing two interlaced (or interleaved) vertical
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`images that were transmitted. The remaining 12 lines were left unused.
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`42. Oftentimes systems transmitted digital data in the VBI or HBI. Digital data
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`consists of discrete, discontinuous binary digits. A digital signal is a signal
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`that represents a sequence of discrete values.
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`43.
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`In the United States, closed captioning is one form of digital data
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`transmission using the VBI with which many consumers are familiar.
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`Closed captioning enables the hearing impaired to enjoy television by
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`providing a textual representation of the spoken words. (Ex. 1030 at 1). By
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`1983, over 300,000 viewers used closed captioning devices, and the number
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`was growing every year. (Ex. 1030 at 1). In fact, by the mid-1990s, closed
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`captioning became a standard feature of all television sets. As was known
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`by 1987, line 21 of the VBI was utilized for transmitting the digital data
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`associated with the closed captioning system. (Ex. 1030 at 1).
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`Declaration of Stuart Lipoff Under 37 C.F.R. § 1.68 in Support of
`Petition for Inter Partes Review of U.S. Patent No. 7,752,650
`44. Teletext is another technique for transmitting data using VBI. Teletext was
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`widely deployed in Europe, particularly in the United Kingdom, where the
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`first development work was carried out. Generally, Teletext relied on the
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`United Kingdom’s digital transmission scheme, but other countries had
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`similar, but technically different schemes.
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`45. Teletext supports the transmission of digital data in the VBI. The digital
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`data in the VBI is captured and then used to generate characters, symbols
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`and patterns for display using techniques that are related directly to the field
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`of computer display.
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`46.
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`In Teletext systems the received data can be displayed directly or overlaid on
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`the program material from the analog video transmission. In one mode of
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`operation the user of a television receiver selects the Teletext information
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`they wish to see by using their remote control to identify particular “pages”
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`of interest, where each page corresponds to one screen of graphic
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`information (usually in the range of 24 lines of 40 characters each). In the
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`initial Teletext systems users selected from a common “library” of
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`information available to all users, however, many systems were proposed
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`and developed t