TRANSLATOR CERTIFICATION
`
`I, Frank McGee, hereby declare:
`
`That I possess advanced knowledge of the Japanese and English languages. My qualifications are as
`follows:
`(cid:120) Over 25 years of experience as a full-time Japanese-English translator in the field of intellectual
`property.
`(cid:120) MA in East Asian Languages, University of Chicago
`
`The attached translation is, to the best of my knowledge and belief, a true and accurate translation from
`Japanese to English of JP H07-123379 A. All statements made in this declaration of my own knowledge
`are true and all statements made on information and belief are believed to be true. I make these
`statements with the understanding that willful false statements and the like are punishable by fine or
`imprisonment, or both (17 U.S.C. 1001).
`
`I declare under penalty of perjury that the forgoing is true and correct.
`
`Executed on this 25th day of November, 2019.
`
`At: Wolfeboro, New Hampshire
`
`______________________________________
`Frank McGee
`
`www.morningsideIP.com
`
` The Leader in Global IP Solutions
`
` info@morningsideIP.com
`
`Roku Exhibit 1011
`Roku, Inc. v. Canon Kabushiki Kaisha
`IPR2020-00342
`Page 00001
`
`

`

`(19) [Issuing Country] Japan Patent Office (JP)
`(12) [Publication Name] Gazette of Unexamined Patent Applications (A)
`(11) [Publication Number] H07-123379
`(43) [Publication Date] May 12, 1995
`
`JP H07-123379 A
`
`[Tech. Indicators]
`
`
`
`
`
`[JPO Reference Nos.]
`
`[ID Codes]
`
`(51) [Int.Cl.6]
`H04N 7/14
`[Examination Request] Not Yet Received
`[Number of Claims] 8
`[Application Format] Online (OL)
`[Total Number of Pages] 4
`
`(21) [Application Number] H05-266914
`(22) [Filing Date] October 26, 1993
`(71) [Applicant]
`[Identification Number] 000001007
`[Name] Canon, Inc.
`[Address] 3-30-2 Shimomaruko, Ota-ku, Tokyo
`(72) [Inventor]
`[Name] Yoshio IIZUKA
`[Address] Canon, Inc., 3-30-2 Shimomaruko, Ota-ku, Tokyo
`(74) [Agent]
`[Attorney]
`[Name] Tsuneo TANAKA
`
`
`
`
`
`
`
`1
`
`IPR2020-00342 Page 00002
`
`

`

`JP H07-123379 A
`
`(54) [Title of the Invention]
`
`Image Communication Device
`
`(57) [Abstract]
`
`[Purpose]
`
`To prevent a previously received image from being displayed during the next
`communication session.
`
`[Constitution]
`
`Before communication begins, initialization data stored in image memory 28 is copied to
`received image memory 30 to initialize the received image memory 30. When
`communication has ended, the initialization data stored in the image memory 28 is copied
`to the received image memory 30 to initialize the received image memory 30. The
`initialization data stored in the image memory 28 can be, for example, a single pixel of
`image data, several pixels of image data, or a single screen of image data. This data is
`copied repeatedly or once as a whole to the received image memory 30.
`
`
`
`
`
`2
`
`IPR2020-00342 Page 00003
`
`

`

`JP H07-123379 A
`
`[Claims]
`
`[Claim 1]
`
`An image communication device comprising a received image memory for storing a received
`image and a pre-communication initialization means for initializing the received image
`memory with a predetermined image before the start of image communication.
`
`[Claim 2]
`
`An image communication device according to claim 1, wherein the predetermined image is
`an image composed of predetermined values.
`
`[Claim 3]
`
`An image communication device according to claim 1, wherein the predetermined image is
`an image composed of a repeating image pattern.
`
`[Claim 4]
`
`An image communication device according to claim 1, wherein the predetermined image is
`an image prepared in advance.
`
`[Claim 5]
`
`An image communication device comprising a received image memory for storing a received
`image and a post-communication initialization means for initializing the received image
`memory with a predetermined image after the end of image communication.
`
`[Claim 6]
`
`An image communication device according to claim 5, wherein the predetermined image is
`an image composed of predetermined values.
`
`[Claim 7]
`
`An image communication device according to claim 5, wherein the predetermined image is
`an image composed of a repeating image pattern.
`
`[Claim 8]
`
`An image communication device according to claim 5, wherein the predetermined image is
`an image prepared in advance.
`
`[Detailed Description of the Invention]
`
`[0001]
`
`[Field of Industrial Applicability]
`
`The present invention relates to an image communication device equipped with received
`image memory for storing a received image.
`
`
`
`
`3
`
`IPR2020-00342 Page 00004
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`

`

`JP H07-123379 A
`
`[0002]
`
`[Prior Art]
`
`When, for example, a received image is to be displayed on the monitor of a conventional
`image communication device, the received image is displayed on the monitor after a single
`screen of image data has been received. Therefore, the received image memory in a
`conventional image communication device does not have to be initialized.
`
`[0003]
`
`[Problem to be Solved by the Invention]
`
`As a result, a received image from a previous image communication session is displayed
`immediately after the end of image communication in the prior art.
`
`[0004]
`
`Even when a single screen of image data has been received after the end of image
`communication, a portion of the received image data from the previous image
`communication session remains unchanged on the monitor screen if the image size (number
`of pixels) of the image received in the previous image communication session is greater
`than the image size (number of pixels) of the image received in the current image
`communication session.
`
`[0005]
`
`Also, if a portion of the received image is lost, a portion of the received image data from the
`previous image communication session also remains unchanged on the monitor screen in
`the lost portion.
`
`[0006]
`
`This problem is even more severe in the case of video communication. In a standard video
`coding method, the entire image in the initial frame is encoded using the intra-frame
`prediction coding method and most of the image in subsequent frames is encoded using the
`interframe prediction coding method. If, for example, the device fails to receive the initial
`frame, an image from the previous image communication session remains on the monitor
`screen as long as interframe prediction coding continues.
`
`[0007]
`
`It is an object of the present invention to provide an image communication device that
`solves this problem.
`
`[0008]
`
`[Means for Solving the Problem]
`
`The present invention is an image communication device comprising a received image
`memory for storing a received image and a pre-communication initialization means for
`initializing the received image memory with a predetermined image before the start of
`image communication.
`
`
`
`4
`
`IPR2020-00342 Page 00005
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`

`

`JP H07-123379 A
`
`
`[0009]
`
`The present invention is also an image communication device comprising a received image
`memory for storing a received image and a post-communication initialization means for
`initializing the received image memory with a predetermined image after the end of image
`communication.
`
`[0010]
`
`[Operation]
`
`In the present invention, a residual image received in a previous communication session is
`neither completely or partially displayed on the monitor screen at the start of the next
`communication session. An image received in a previous communication session is also not
`displayed when an image with a smaller image size has been received.
`
`[0011]
`
`When a compressed transmission combines both intraframe coding and interframe coding, a
`residual image received in a previous communication session is not displayed on the
`monitor screen if the device fails to receive the initial frame.
`
`[0012]
`
`[Examples]
`
`The following is a description of an example of the present invention with reference to the
`drawings. In order to simplify the explanation, only the sending and receiving of image data
`will be described. The device may also have means for sending and receiving audio data and
`text data if necessary.
`
`[0013]
`
`FIG. 1 is a block diagram showing the overall configuration of an example of the present
`invention. The main unit 10 in the present example is connected to a communication line
`12, command input device 14, display device, and image input device 18.
`
`[0014]
`
`The main unit 10 is equipped with an overall control unit 20, a communication control unit
`22, a decoding unit 24, and an encoding unit 26. The overall control unit 20 is equipped
`with image memory 28, and the decoding unit 24 is equipped with received image memory
`30.
`
`[0015]
`
`The user can input a particular command to the overall control unit 20 using the command
`input device 14. The overall control unit 20 exchanges communication control commands
`and communication information with the communication control unit 22, exchanges
`encoding control commands and encoding information with the encoding unit 26, and
`exchanges decoding control commands and decoding information with the decoding unit 24.
`
`
`
`
`5
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`IPR2020-00342 Page 00006
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`

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`JP H07-123379 A
`
`[0016]
`
`Received image data inputted from the communication line 12 is then inputted to the
`decoding unit 24 via the communication control unit 22. The decoding unit 24 writes image
`data from the image memory 28 in the overall control unit 20 or decoding data for received
`image data from the communication control unit 22 to the received image memory 30. An
`image stored in the received image memory 30 is outputted to the display device 16 as
`playback image signals either in an unaltered state or after passage through a post-
`processing filter.
`
`[0017]
`
`The original image signals inputted form the image input device 18 are encoded by the
`encoding unit 26 and outputted as transmitted image data to the communication line 12 via
`the communication control unit 22.
`
`[0018]
`
`The following is a detailed explanation of the initialization of the received image memory 30,
`which is the unique feature of the present example.
`
`[0019]
`
`When a user command to start an image communication session has been inputted to the
`overall control unit 20 from the command input device 14, the received image memory 30 is
`initialized by the overall control unit 20 before the start of communication. More specifically,
`the overall control unit 20 copies initialization data stored in the image memory 22 to the
`received image memory 30.
`
`[0020]
`
`The initialization data stored in the image memory 22 can be a single pixel of image data,
`and this single pixel of image data is copied repeatedly to fill all stored pixels in the received
`image memory 30.
`
`[0021]
`
`The initialization data stored in the image memory 22 can be several pixels of image data,
`and this several pixels of image data is copied repeatedly to fill all stored pixels in the
`received image memory 30.
`
`[0022]
`
`The initialization data stored in the image memory 22 can be a single screen of image data
`equal to the number of stored pixels in the received image memory 30, and this single
`screen of image data is copied to the received image memory 30.
`
`[0023]
`
`Communication begins after the received image memory 30 has been initialized, especially
`reception. More specifically, the decoding unit 24 writes the image data obtained by
`decoding received image data to the received image memory 30.
`
`
`
`
`6
`
`IPR2020-00342 Page 00007
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`

`

`JP H07-123379 A
`
`[0024]
`
`Initialization of the received image memory 30 may be performed before the start of image
`communication, after the end of image communication, or both. The following occurs when
`initialization is performed after the end of image communication.
`
`[0025]
`
`After the start of image communication, the decoding unit 24 writes the image data
`obtained by decoding received image data to the received image memory 30.
`
`[0026]
`
`When a user command to stop image communication is inputted from the command input
`device 14 to the overall control unit 20, the overall control unit 20 sends particular
`commands to the communication control unit 22, the encoding unit 24 and the decoding
`unit 26 to execute processing to end image communication. Afterwards, the overall
`command unit 20 copies initialization data stored in the image memory 28 to the received
`image memory 30.
`
`[0027]
`
`As in the case of initialization performed prior to the start of communication, the
`initialization data stored in the image memory 22 can be a single pixel of image data,
`several pixels of image data, or a single screen of image data. This data is copied as
`explained above to the received image memory 30.
`
`[0028]
`
`[Effects of the Invention]
`
`In the present invention, as explained above, the received image memory is initialized
`before the start of image communication or after the end of image communication. As a
`result, some or all of an image received in a previous communication session is not
`displayed on the monitor screen in a subsequent communication session.
`
`[0029]
`
`Even when monitor display begins before a single screen of image data has been received,
`when the size of the image received in the previous image communication session is greater
`than the size of the image received in the current image communication session, or when a
`portion of the image data received after the start of image communication has been lost, a
`received image from a previous communication session is not displayed.
`
`[0030]
`
`Even when the device fails to receive the initial intraframe prediction encoded frame during
`video communication, an image remaining from the previous image communication session
`is not displayed.
`
`[0031]
`
`
`
`
`7
`
`IPR2020-00342 Page 00008
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`

`

`JP H07-123379 A
`
`When multiple people use a single image communication device, personal privacy is
`enhanced and confidential communication ensured because received images from previous
`image communication sessions are not displayed.
`
`[Brief Description of the Drawings]
`
`[FIG. 1]
`
`FIG. 1 is a block diagram showing the overall configuration of an example of the present
`invention.
`
`[Key to the Drawings]
`
`10: Main unit
`12: Communication line
`14: Command input device
`16: Display device
`18: Image input device
`20: Overall control unit
`22: Communication control unit
`24: Decoding unit
`26: Encoding unit
`28: Image memory
`30: Received image memory
`
`
`
`
`
`
`
`8
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`IPR2020-00342 Page 00009
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`

`

`[FIG. 1]
`
`
`JP H07-123379 A
`
`
`
`
`12: Communication line
`14: Command input device
`16: Display device
`18: Image input device
`20: Overall control unit
`22: Communication control unit
`24: Decoding unit
`26: Encoding unit
`28: Image memory
`30: Received image memory
`
`
`
`
`9
`
`IPR2020-00342 Page 00010
`
`