IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`In re Reexamination of US. Patent of:
`
`Toshiharu Enmei
`
`Examiner: Nguyen, Minh
`
`Control No.: 90/011,691
`
`Group Art Unit: 3992
`
`Patent No.: 6,985,136
`
`Issued: January 10, 2006
`
`October 21, 2011
`
`For: Portable Communicator
`
`DECLARATION OF STEVEN ISAAC UNDER 37 C.F.R.
`
`1.132
`
`I am of lawful age and if called upon to testify, I could and would competently testify to the facts
`
`set for below.
`
`1.
`
`I am currently the CEO of TouchF ire, Inc., a startup company in the tablet computer
`
`space.
`
`2.
`
`In 1979, I was awarded a Bachelor degree in Computer Science from the State
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`University of New York at Buffalo.
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`3.
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`From 1979-1982, I was employed by NCR where I developed firmware for a pre-
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`production NCR minicomputer.
`
`4.
`
`From 1982-1985, I was employed by Burroughs Corporation where I worked in the
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`semiconductor research division developing an operating system for a new line of reduced
`
`instruction set CPUs.
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`1
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`EXHIBIT
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`Petitioner - Kyocera
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`PX 1045
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`Kyocera PX 1045__1
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`5.
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`From 1985-1988, I was employed by Sun Microsystems where I led a group that
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`ported NFS (Network File System) to non-Sun systems and made NFS an industry standard.
`
`6.
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`From 1988-1993, I was employed by GO Corporation (“GO”). I joined GO as the
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`Team Manager for the Filesystem and Connectivity group. GO developed a mobile operating
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`system for portable tablet computers named PenPoint. I was the seventh employee at GO, and
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`my job was to develop the storage and connectivity strategy for PenPoint, and to then implement
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`it. PenPoint was one of the world’s first operating systems specifically designed for mobile
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`operation, and I invented numerous new approaches and technologies that addressed the unique
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`requirements and characteristics of a mobile environment. GO shipped the first version of
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`PenPoint in 1991. I was subsequently promoted to Principal Engineer, which was the title I had
`
`until I left GO. When I first joined GO, the company was developing both hardware and
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`software. I participated in some of the connectivity aspects of the hardware design, and I was
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`responsible for the software in this area. Subsequently, GO spun off its hardware group into a
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`separate company, EO, Inc. (“EO”). EO was then acquired by AT&T. Thereafter, EO acquired
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`GO. I worked in the merged EO/GO organization during my last year at the company. EO built
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`two portable tablet computers that ran PenPoint exclusively, namely the EO 440 and 880
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`Personal Communicators. I was responsible for the connectivity aspects of the PenPoint software
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`that ran on these machines.
`
`7.
`
`From 1993-2000, I was at Microsoft Corporation where I was Group Program
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`Manager for a research project that became Windows CE. I was on the Internet Explorer 1.0
`
`team and was responsible for the IE home page. I then published the first MSN.COM, and
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`developed the first customizable home page on the Internet. The technology that my team
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`developed for this became Active Server Pages 1.0. I then went to the Developer Tools Division
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`and managed a group that was responsible for the design time and portions of the runtime for
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`ASP.NET 1.0.
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`8.
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`From 2008-2010, I was at Earth Class Mail as Vice President of Product where I led
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`the product direction for the company. Earth Class Mail gives customers online access and
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`control of their postal mail.
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`9.
`
`In 2010, I started TouchFire, Inc. (“TouchFire”). TouchFire is a startup that is
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`developing a product that provides a better way to input information on tablet computers.
`
`10.
`
`I am named as an inventor or co-inventor on 10 issued U.S. patents: 5,724,492,
`
`5,959,621, 6,091,411, 6,216,143, 6,421,694, 6,424,981, 6,632,248, 6,647,531, 6,915,454,
`
`7,451,352.
`
`11.
`
`I have reviewed United States Patent No. 6,985,136, the named inventor of which is
`
`Toshiharu Enmei, hereinafter referred to as the “’136 Patent.” The first page of the ‘136 patent
`
`shows that a Japanese application was filed on November 9, 1992. For purposes of this
`
`Declaration, the term “application date” of the ‘136 patent means November 9, 1992.
`
`12. Each of the functional components disclosed and claimed by the ‘136 patent,
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`typically illustrated as simple block diagrams, was well known in the art at the time of the
`
`application date. The ‘136 patent merely purports to have invented a multifunctional laptop
`
`device aggregated from a multitude of known components and technologies.
`
`13. The EO Personal Communicators running
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`the PenPoint operating system
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`implemented the key features described in the ‘136 patent. The EO Personal Communicators are
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`portable, battery operated, handheld devices – for example, the dimensions of the main body of
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`the EO 440 are 10.8" x 7.1" x 0.9", and it weighed 2.3 lbs. The EO Personal Communicators
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`provided both voice and data communication over the analog cellular network that was in use in
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`the 1991 timeframe. Data capabilities included sending and receiving email, sending and
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`receiving faxes, and remote file access to desktop PCs and networks. Voice capabilities included
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`making and receiving voice calls, monitoring roaming status, keeping track of call times,
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`displaying signal strength, managing phone numbers and dialing phone numbers via a built-in
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`address book. For talking and listening to cellular voice calls, the EO Personal Communicators
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`utilized a telephone handset or a headset worn by the user.
`
`14.
`
`I reviewed the Patent Owner’s Statement filed in this reexamination, including the
`
`May 13, 2011 Declaration of Michael Kotzin, Ph.D., hereinafter referred to as the “Kotzin
`
`Declaration” or simply “Kotzin.”
`
`15.
`
`I have reviewed an English translation of excerpts of Japanese Patent Publication
`
`No. JP H3-235116, the named inventor of which is Inoue, hereinafter referred to as the “Inoue.”
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`16. A person skilled in the art as of the application date would have understood that the
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`Inoue reference discloses a multifunctional laptop word processor equipped with various
`
`features, including, for example, a touch screen, floppy disk drive, memory, fax machine,
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`scanner, printer interface, a keyboard and a telephone handset.
`
`17. Despite disclosing fax functionality, it is incorrect to suggest that the Inoue
`
`reference “requires” fax functionality. Like the device of the ‘136 patent, fax functionality is just
`
`a feature of the device. For example, the Inoue Translation discloses the following on Page 5:
`
`“E26 is a 1200/300-baud asynchronous communication modem (CCITT V.21, V.22 standards).
`
`When this modem board is inserted into a corresponding connector, the public circuit E14 [sic],
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`used for both telephone and fax, can also be used for PC communication.” Thus, fax
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`functionality is clearly not required at all times, since the public circuit can also be used at other
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`times for PC communication.
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`18. The Inoue reference plainly discloses a touch screen display for inputting
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`commands. (Inoue Translation, Page 6.). As was well known in the art as of the application date,
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`commercially available touch-sensitive LCD displays were overlaid with a digitizer (i.e., a touch
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`layer). This is because commercially available LCD displays were not able to detect an input.
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`Commercially available LCD displays as of the application date were unable to receive inputs
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`without a secondary device, such as a digitizer. As a result, the “display device” claimed in the
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`‘136 patent simply cannot be a single device capable of both displaying images and receiving
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`inputs and generating outputs. For this reason, a person skilled in the art as of the application
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`date would understand that the term “display device” claimed in the ‘136 patent would require
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`both a digitizer and a display.
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`19.
`
`I have reviewed European Patent Application No. EP0499012, the named inventor
`
`of which is Zvi Yaniv, hereinafter referred to as the “Yaniv.”
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`20. The Yaniv reference discloses a hand-held portable communicator enabled for both
`
`voice and data transmission (e.g., fax) over a cellular network. To facilitate user input, the Yaniv
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`portable communicator also employs a touch screen display.
`
`21. One skilled in the art as of the application date would understand that the Yaniv
`
`reference clearly discloses a compact telecommunications system adapted to send and receive
`
`information in either voice or facsimile fashion by way of a wireless communication
`
`terminal/cellular telephone network. See e.g., Col. 1:3-15. This is confirmed by the Yaniv
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`reference’s statement that the simplest operation of the device is its use as a telephone for voice
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`communication, whereby a microphone and speaker are provided in the device and either hand-
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`held or speakerphone operation can be selected. See Col. 4:39-43.
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`22. Contrary to Dr. Kotzin’s declaration (Kotzin, ¶¶18-25), coupling a fax machine, or
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`fax functionality, with a cellular device for use over cellular channels was well known as of the
`
`application date, and would not require detailed knowledge about the cellular telephone’s
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`operation and control. For example, U.S. Patent Number 4,977,609 discloses a simple interface
`
`circuit for adapting an existing facsimile machine to successfully operate through an existing
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`cellular mobile radiotelephone.
`
`23. Furthermore, the EO 440 and 880 Personal Communicators provided fax
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`capabilities over cellular channels. The EO devices utilized an “off the shelf” third-party cellular
`
`modem manufactured by Data Race, Inc., of San Antonio, Texas. This modem interfaced directly
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`to a cellular channel and provided both data and fax capabilities (data throughput rate was
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`14.4kbps, fax throughput rate was 9.6kbps). I had personal experience prior to the application
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`date developing communication software for the EO devices, testing them in the lab and in the
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`field, and using them as an end user. Dr. Kotzin conjectures that the performance of a standard
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`fax machine would be inadequate due to the susceptibility of cellular channels to various forms
`
`of interference. However, that was simply not the case in my experience. Fax transmission over
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`cellular channels with an EO device performed quite satisfactorily. The Data Race cellular
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`modem specifically included technology to overcome the issues Dr. Kotzin describes, such as the
`
`ability to automatically analyze the quality of the cellular link and dynamically adjust modem
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`speed accordingly.
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`24.
`
`I have reviewed United States Patent No. 5,283,818, the named inventors of which
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`are Klausner et al., hereinafter referred to as the “Klausner.” One skilled in the art as of the
`
`application date would understand that the Klausner reference discloses a telephone apparatus
`
`having a touch-screen display for displaying a list of caller names. When a user selects a name
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`from the list, using the touch-screen, the telephone will dial the number affiliated with the
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`selected name. Therefore, the skilled person would have understood that Klausner plainly
`
`illustrates, as claimed by the ‘136 patent, a destination selection device that shows a list of one or
`
`more destinations on the display and performs a destination identifying number-setting process
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`when the destination from the list is selected.
`
`25. Klausner discloses a touch screen, which uses a screen overlay that permits a user to
`
`input commands via the screen. (Col. 4:39-48.). Although Klasuner does not disclose the specific
`
`type of display used with the touch screen, one skilled in the art as of the application date would
`
`understand that the display could be a commonly used display, such as an LCD, and would not
`
`understand that the display would be limited to only Cathode Ray Tube (“CRT”) displays.
`
`26. Klausner suggests “preferably” using a display controller comprising the following
`
`chipsets: Signetics 2670; Signetics 2672; and Signetics 2673. (Exhibit A). Klausner does not
`
`suggest that this is the only display controller that can be used, nor that the Klausner device is
`
`limited to such a display controller.
`
`27.
`
`I have reviewed the data sheets for the Signetics 2670, 2672 and 2673 chipsets and
`
`have concluded that one skilled in the art as of the application date would understand that they
`
`were not intended to be used only with CRT displays. Rather, as expressly stated in the datasheet
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`for the Signetics 2673, the controllers may be used to drive both CRT and raster scan displays in
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`general. Specifically, the Signetics 2673 datasheet states “The Signetics 2673A and 2673B
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`Video Attributes Controllers (VAC) are bipolar LSI devices designed for CRT terminals and
`
`display systems that employ raster scan techniques.” 2673 Datasheet at page 1. The Signetics
`
`2673 data sheet confirms my understanding that, at least as early as March 31, 1992 when
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`Klausner was filed, raster scan LCD display systems were available. Such raster scan LCD
`
`displays were known at the time of the Klausner reference. See, for example, U.S. Patent No.
`
`4,585,310 (“This invention relates to an improved reflective raster scanned laser addressed liquid
`
`crystal cell, and more particularly a liquid crystal cell in which the alignment layer is oriented
`
`relative to the scanning raster.”); U.S. Patent No. 6,307,565 (“This system relates generally to
`
`memory for raster-scanned displays and, in particular, to a system for controlling the reading
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`from and writing to memory used as a buffer for asynchronously received digital video data to be
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`displayed on an LCD display.”); U.S. Patent No. 5,426,734 (“Further, the image display device
`
`is not limited to CRT image display device. For example, any other raster scan display devices
`
`such as a liquid crystal display, a plasma display, or an electroluminescence display can provide
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`a display in the same way.”); U.S. Patent No. 5,085,602 (“FIG. 1 is a block diagram of a
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`conventional digitally controlled display system 10. The display system 10 comprises a raster-
`
`scan compatible type of multiplexed liquid crystal (LCD) panel unit 11 . . .”).
`
`28. The information in the preceding paragraph contradicts Dr. Kotzin’s statement that
`
`the Klausner display is limited to a CRT. Moreover, Klausner is silent with respect to the screen
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`type. In addition, the figures in Klausner illustrate what appears to be a compact, flat display,
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`which is typical of LCD displays, and raster scan LCDs existed at the time of the Klausner
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`patent.
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`29. Even if Klausner were assumed to use a CRT display, one skilled in the art as of the
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`application date would conclude that the Klausner device was portable. For instance, an
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`exemplary compact CRT display was used as of the application date in the hand-held Sony
`
`Watchman FD-20A. (Exhibit B). Other examples of hand-held devices with a compact CRT
`
`display were the Panasonic TR-001 (Exhibit C) and the Sinclair MTV1 (Exhibit D).
`
`30.
`
`I have reviewed United States Patent No. 5,128,981, the named inventor of which is
`
`Tsukamoto, hereinafter referred to as the “Tsukamoto.”
`
`31. The Tsukamoto reference discloses wireless communicators enabled to wirelessly
`
`communicate with a public communication network by way of an office system (“PBX”).
`
`32. The Tsukamoto wireless communicators are enabled to communicate with a public
`
`telephone network by way of a wireless base station (transmitter/relay) and communication
`
`controller that is connected to a public network. See e.g., Col. 5:61-63 and Figure 1.
`
`33. One skilled in the art as of the application date would have concluded that
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`Tsukamoto is enabled to communicate with a public network, and that adapting a private
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`network device to operate over a public network would require minimal modifications. For
`
`example, U.S. Patent No. 5,127,041 provides a simple system and method for adapting a
`
`computer to operate over a cellular network.
`
`34.
`
`I have reviewed United States Patent No. 5,117,449, the named inventor of which is
`
`Metroka, hereinafter referred to as the “Metroka.”
`
`35. Metroka teaches an integrated paging and radiotelephone apparatus that combines
`
`paging and cellular radiotelephone functions in a single unit. Metroka notes that the apparatus
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`consists of dual receivers allowing reception of paging signals simultaneously with cellular
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`radiotelephone signals. See e.g., Col. 2:10-14.
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`36. ADC incorrectly concludes that the Metroka cellular radiotelephone does not
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`comply with any cellular network because the radiotelephone is user-tunable. Based on this
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`incorrect conclusion, ADC goes on to mischaracterize the Metroka cellular radiotelephone as a
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`“push-to-talk, simplex, radio system known as a ‘walkie-talkie’.” (Patent Owner’s Statement, p.
`
`22-23). The Metroka patent, however, clearly states that the Metroka cellular radiotelephone
`
`does in fact participate in a standard cellular telephone network - one that provides access to the
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`landline telephone system and charges users for incoming and outgoing calls: “The cellular
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`radiotelephone allows a mobile user to place a call anywhere within an area covered by the
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`cellular communications system antennas. The cellular radiotelephone allows the user to access
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`the landline telephone system to conduct two way telephone conversations. The cellular
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`radiotelephone user can also receive telephone calls on the radiotelephone … the radiotelephone
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`user typically pays for incoming as well as outgoing calls.” Col. 1:39-52.
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`37. Despite the clear teachings in Metroka that it discloses a standard cellular
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`radiotelephone, ADC cites three passages in Metroka to allegedly show that its cellular
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`radiotelephone receiver is user-tunable.
`
`a.
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`ADC states that “Metroka describes how the microprocessor controls the
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`“frequency control of the radiotelephone. (Col. 3, Ins. 15-20).” (Patent
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`Owner’s Statement, p. 23) The actual text in the patent is: “The
`
`microprocessor (106) handles both the radiotelephone and the paging
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`functions,
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`including
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`frequency control of
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`the
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`radiotelephone.”
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`Cellular networks operate on multiple frequencies and cellular phones are
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`often required to switch frequencies as they travel from cell to cell.
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`However, this occurs without any user intervention; in fact, the user is
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`unaware that this frequency switching is taking place. The microprocessor
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`that controlled a cellular radiotelephone typically performs this frequency
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`switching task, as set forth in Metroka. Notably, Metroka never states that
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`there is any user interaction for the frequency control task.
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`b.
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`ADC states that “Additionally, Metroka explains that “[I]t it is determined
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`that the programming command was input, then flow proceeds from (412)
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`to block (414) where a prompt is displayed on the display (103) asking the
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`user to input the first of a series of programmable radiotelephone
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`parameters(frequency) via the keypad (102).” (Patent Owner’s Statement,
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`p. 23). The actual text of the patent does not contain the denotation
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`“(frequency)” for the first radiotelephone parameter. In fact, there is no
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`mention of a radiotelephone parameter for frequency anywhere in the
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`patent. Also, entering radiotelephone parameters only occurs when the
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`radiotelephone is in a test mode, not when the radiotelephone is in normal
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`operation. This can be seen by reviewing the entire text in Col 7: 1-34, not
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`merely a portion of text taken out of context. This is also shown in Fig. 4.
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`c.
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`ADC states that “The paging system is typically a one-way radio
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`communication system … the keypad can be used to program it via the
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`microprocessor (106) and synthesizer programming bus (201). In this way,
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`the user can change the receiving frequency of the secondary receiver
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`(105) … the first keypad (102) can also program radiotelephone
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`parameters. These parameters include, but are not limited to, the system
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`identification number and the user’s telephone number.” The first two
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`parts of this statement show that the user can change the frequency of the
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`paging receiver (the secondary receiver). However, there is no mention
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`anywhere in the patent that the user can change the frequency of the
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`radiotelephone receiver. The third portion of the statement describes the
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`typical first-time setup for a cellular phone – setting the system
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`identification number and setting the user’s telephone number. The patent
`
`allows for other parameters to be set, but never mentions radiotelephone
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`frequency as one of those parameters.
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`38.
`
`In summary, the radiotelephone described in Metroka is a standard cell phone
`
`that works with a standard cellular network.
`
`I declare under penalties of perjury set out in 18 U.S.C. §1001 that the foregoing
`
`statements are true and correct to the best of my knowledge
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`
`
`Date : ____10/21/2011___________
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`
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`________________________________
`
` Steven Isaac
`
`
`
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`12
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`Kyocera PX 1045_12
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`Exhibit A
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`DECLARATION OF STEVEN ISAAC UNDER 37 C.F.R. § 1.132
`
`Kyocera PX 1045_13
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`Kyocera PX 1045_13
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`

`

`2
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`000000
`
`Kyocera PX 1045_14
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`Kyocera PX 1045_14
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`

`Signetlcs reserves the right to make changes in the products contained in this
`document in order to improve design or performance and to supply the best
`possible products. Signetics also assumes no responsibility for the use of any
`circuits described herein, conveys no license under any patent or other right,
`and makes no representations that the circuits are tree from patent infringe-
`ment. Applications for any integrated circuits contained in this publication are
`for illustration purposes only and Signetics makes no representation or war-
`ranty that such applications will be suitable for the use specified without fur-
`ther testing or modification. Reproduction of any portion hereof without the
`prior written consent of Signetics is prohibited.
`
`M
`
`This Material Copyrighted By Its Respective Manufacturer
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`Kyocera PX 1045_15
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`Kyocera PX 1045_15
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`DESCRIPTION
`The Signetics Display Character and
`Graphics Generator (0666) is a mask-
`programmable 11.64a-bit line select char-
`acter generator. it contains 128 IOXO char-
`acters placed in a 10Xt6 matrix. and has
`the capability at shitting certain characters.
`such as i. y. g. p and q. that normally extend
`below the baseline. Character shitting. pre-
`viously requiring additional external circuit-
`ry.
`is now accomplished internally by the
`DCGG; effectively, the 9 active lines are
`lowered within the matrix to compensate for
`the character's position.
`Seven bits ot an 8-bit address code are
`used to select t at the 128 available charac-
`ters. The eighth bit Iunctions as a chip an-
`able signal. Each character is detlned by a
`pattern of logic Is and Os stored in a text)
`matrix. When a specific 4-bit binary line ad-
`dress code is applied. a word at to parallel
`bits appears at the Output. The lines can be
`sequentially selected, providing a 9-word
`sequence of 10 parallel bits per word for
`each character selected by the address in-
`puts. As the line address inputs are sequen-
`tially addressed, the device will automati-
`cally place the 10x9 character in 1 ol 2 pre-
`A programmed positions on the 16-llne matrix
`”\with the positions defined by the 4-llne ad-
`dress inputs. One or more at the 10 parallel
`outputs can be used as control signals to
`selectively enable tunctiona such as half-
`dot shift, color selection. etc.
`The 2870 D086 includes latches to store
`the character address and line address
`data. A control input to inhibit character
`data output for certain groups of characters
`is also provided. The 2670 also includes a
`graphics capability. wherein the 8-bit char-
`acter code is translated directly Into 256
`possible user programmable graphic pat-
`terns. Thus, the 0066 can generate data for
`334 distinct patterns. of which 128 are de-
`fined by the mask programmable ROM. See
`figure 1 for a typical applications display.
`
`
`
`Vega 5V : 5%, TAE 0°C IO 10°C
`"W‘s mm
`
`Ceramic DIP
`SCN2670'62I28
`.,
`SCN2670‘CSI28
`SCN2670'02N28
`Plastic DIP
`)
`scmem'cauzs
`
`
`
`_
`
`
`;
`
`"
`'
`'
`NOTE
`Substitute letter corresponding to standard font tor "' in part number for standard pans. See back at data sheet. Corr
`tact sales office tor custom ROM patterns.
`
`
`
`
`MICROPROCESSOR DIVISION
`MW
`$042670-
`‘ DISPLAY CHARACTER AND GRAPHICS GENERATOR (DCGG)
`fl)
`\
`
`FEATURES
`128 10x9 matrix characters
`256 graphic characters
`Optional thln graphics for terms
`Character and line address latches
`Internal descend logic
`200nsec and 300nsec character select
`access time versions
`Control character output inhibit logic
`Static operation—no clocks required
`Single 5V power supply
`TTI. compatible inputs and outputs
`
`O...
`
`ORDERING CODE
`
`TOP VIEW
`
`BLOCK DIAGRAM
`
`"'
`
`INHIBIT
`CONTROL
`
`MEMORY OUTPUT
`
`aaoasas ascooea
`a '
`
`READ ONLY
`
`°Tomé°8
`
`v
`
`DRIVERS
`
`U"E ADDRESS
`TRANSLATION ROM
`MINI
`
`This Material Copyrighted By Its Respective Manufacturer
`
`Kyocera PX 1045_16
`
`Kyocera PX 1045_16
`
`

`

`MICROPROCESSOR DiVlSlON
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`DISPLAY CHARACTER AND GRAPHICS GENERATOR (DCGG)
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`NAME AND FUNCTION
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`Character Address: Eight bit code specifies the character or graphic pattern for which matrix
`data is to be supplied. in character mode (GM-O). CAO thru CA6 select one of the 128 ROM-
`detined characters and CA7 is a chip enable. The outputs are active when CA7=1 and are tri-
`stated when CA7=0. In graphics mode (GM=1), the outputs are active and CAD thru CA7
`select one of 256 possible graphic patterns to be output.
`Character Strobe: Used to store the character address (CAO thru CA7) and graphics mode
`(GM) inputs into the character latch. Data is latched on the negative going edge of CSTROBE.
`Graphics Mode: GM-O (low) selects character mode; GM=1 (high) selects graphics mode.
`Line Address: In character mode. selects one of the 16 lines ot matrix data for the selected
`character to appear at the 10 outputs. LAO is the LSB and LA3 is the M58. The input codes
`which cause each at the nine lines of character data to be output are specified as part at the
`programming data tor both non-shifted and shifted fonts. Cycling through the nine specified
`counts at the LAO thru LA3 inputs cause successive lines at data to be output on Do thru DO.
`The 7 non-specified codes tor both non-shitted and shifted characters cause blanks (logic
`zeros) to be output. In graphics mode, the line address gates the latched graphics data
`directly to the outputs.
`Line Strobe: Used to store the line address data (LAO thru LA3) In the line address latch.
`Data is latched on the negative going edge of LSTROBE.
`Selected Character Disable: In character mode. a high level at this input causes all outputs
`(regardless of line address) to be blanks (zeros) for characters tor which CA6 and CA5 are
`both 0. A low level input selects normal operation. lnoperative in the graphics mode.
`Data Outputs: Provide the data for the specified character and line.
`+5V power supply.
`Ground.
`
`GM
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`LSTROBE
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`SCD
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`DOvDO
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`Vcc
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`Figure 1. Typlcel Application
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`This Material Copyrighted By Its Respective Manufacturer
`
`Kyocera PX 1045_17
`
`Kyocera PX 1045_17
`
`

`

`MICROPROCESSOR DIVISION
`
`SCN267O
`‘ DISPLAY CHARACTER AND GRAPHICS GENERATOR IDCGGI
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`FUNCTIONAL DESCRIPTION
`The 0666 consists of nine major sections.
`Line and character codes are strobed into
`the line and character latches. The charac-
`ter latch outputs are presented to the three
`sources ol data; the ROM through an ad-
`dress decoder. the graphics logic. and the
`output inhibit control. The output inhibit con-
`trol (together with the SCD input) sup-
`presses the ROM data tor selected charac-
`ter codes. The outputs trom the line latch
`drive the line address translation ROM
`which maps the character ROM data onto 9
`oi 16 line positions. Finally, the line select
`multiplexers route the ROM or graphics data
`to the output drivers on Do through 09.
`
`Character Latch
`The character latch is a 9-bit edge triggered
`latch used to store the character address
`(CAO thru CA7) and graphics mode (GM)
`inputs. The data is stored on the tailing edge
`ol CSTROBE. Seven latched addresses
`(CAO thru CA8) are inputs to the ROM char-
`acter address decoder. In character mode
`(GM-0). CA7 operates as a chip enable.
`The output drivers are enabled when CA7=1
`and are tri-etated when CA7-o. In graphics
`mode (GM= 1). the output drivers are always
`A “enabled and the CAO thru CA7 outputs of the
`latch are used to generate graphic symbols.
`
`Character Address Decoder
`This circuit decodes the 7-bit character ad-
`dress trom the character latch to select one
`
`LINE ADDRESS
`
`ot the 128 character fonts stored In the ROM
`section at the DCGG.
`
`Read Only Memory
`The 1 1.648-blt ROM stores the tents for the
`128 matrix-delined characters. The data tor
`each character consists oi 91 bits. Ninety
`bits represent the 10X9 matrix and one bit
`specifies whether the character data is out-
`put at the normal (unshitted) lines or at the
`descended (shifted) lines. The 90 data bit
`outputs are supplied to the line select
`multiplexers. The descend control bit is an
`input to the line address translation ROM.
`
`Graphics Logic
`When the GM input is zero (low). the 0066
`operates in the character mode. When it is
`one (high). it operates in the graphics mode.
`In graphics mode. output data is generated
`by the graphics logic instead ol the ROM.
`The graphics logic maps the latched char.
`acter address (CAO thru CA7) to the outputs
`(DO thru 09) as a lunction ol line address
`(LAO thru LA3). For any particular line ad-
`dress value. two of the CA bits are output:
`CAO. CA2. CM or CA8 is output on DD thru
`D4 and CA1; CA3. CA5 or CA7 is output on
`05 thru D9. The outputs are paired: When
`CAO is output on DD thru D4. CA1 is output
`on 05 thru 09 and likewise for CA2-CA3.
`CA4-CA5 and CAB-CA7.
`
`A ROM within the graphics logic allows the
`specltic line numbers for which each pair of
`bits is output to be specllied by the custom-
`er. Figure 2 illustrates the general tormat tor
`
`graphics symbols and an example where
`(CA7 thru CAO) - W654. The outputs from
`the graphics logic go to the line select
`multiplexers. The multiplexers route the
`graphic symbol data to the outputs when
`GM - 1.
`
`Thin Graphics Option
`As a customer specified option. 16 ol the
`possible graphic codes (H’so’ to i-l’aF’) may
`be used to generate the special graphic
`characters illustrated in figure 3. For each of
`these characters. the vertical component
`appears on the De output. The horizontal
`component occurs on L" which is specllled
`by the customer. The vertical components
`specified by CAO and CA2 are output for line
`addresses zero thru LH and LH thru fifteen,
`respectively.
`
`Una Select Mulflplexers
`The ten line select multiplexers select ROM
`data as specified by the line address trans-
`lation ROM when GM-O. or graphics data
`when GM-1. The inputs to each multiplexer
`are the nine line outputs lrom the ROM. an
`output from the graphics logic and a logic
`zero (ground).
`
`Output Drivers
`Ten output drivers with 3-state capability
`serve as butters between the line select
`multiplexers and external logic. The 3-state
`control input to these drivers is supplied
`trom the CA7 latch when GM-O. When
`GM- 1, the outputs are always active.
`
`GROUP 2
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`GROUP 3
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`I'L- 1‘l —
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`GROUP LINE ADDRESSES ARE SPECIFIED IV THE CUSTOMER
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`GROUP 1 SPECIFIED FOR LINES I). 1. 2
`GROUP 2 OREGIFIED FOR LINES 3, I: 5
`GROUP 3 SPECIFIED FOR LINES I. 7 S
`GROUP 4 SPECIFIED FOR LINES I, 10. 11
`SPACE SPECIFIED FOR LINES 12. 13, 14, 15
`
`Figure 2. Graphics Symbols — General Format
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`
`This Material Copyrighted By Its Respective Manufacturer
`
`Kyocera PX 1045_18
`
`Kyocera PX 1045_18
`
`

`

`MICROPROCESSOR DIVISION
`
`DISPLAY CHARACTER AND GRAPHICS GENERATOR (DCGG)
`SCN2670 '
`
`
`Af‘
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`Output inhibit Control
`The output Inhibi