Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 1 of 29 PageID #: 7111
`Case 5:19-cv-00036—RWS Document 164-3 Filed 12/16/19 Page 1 of 29 PageID #: 7111
`
`EXHIBIT 17
`
`EXHIBIT 17
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 2 of 29 PageID #: 7112
`
`USOO8363O87B2
`
`(12) United States Patent
`Iwabuchi et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 8,363,087 B2
`Jan. 29, 2013
`
`(54) TELEVISION RECEIVER WITH A TV PHONE
`FUNCTION
`
`(75) Inventors: Kazunori Iwabuchi, Yokohama (JP);
`Hiroki Mizosoe, Kawasaki (JP);
`Mutsumi Shimoda, Kawasaki (JP),
`Setiawan Bondan, Yamato (JP);
`Manabu Sasamoto, Yokohama (JP)
`
`(73) Assignee: Hitachi, Ltd., Tokyo (JP)
`
`(*) Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 632 days.
`(21) Appl. No.: 12/457,257
`
`(22) Filed:
`
`Jun. 4, 2009
`
`(65)
`
`(30)
`
`Prior Publication Data
`US 201O/OO73455A1
`Mar. 25, 2010
`
`Foreign Application Priority Data
`
`Sep. 25, 2008 (JP) ................................. 2008-246232
`
`(51) Int. Cl.
`(2006.01)
`H04N 7/4
`(52) U.S. Cl. .................................................... 348/14.04
`(58) Field of Classification Search ............... 348/14.04,
`348/1401, 14.07
`See application file for complete search history.
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`5,526,037 A * 6/1996 Cortjens et al. ............ 348, 14.04
`6,339,842 B1* 1/2002 Fernandez et al. ......... 348, 14.04
`
`7.593,031 B2 * 9/2009 Root et al. ................. 348, 14.04
`8,013,938 B2 * 9/2011 Shyu .......
`... 348/14.04
`2007/0139514 A1* 6/2007 Marley ....................... 348, 14.01
`2007/0216760 A1
`9, 2007 Kondo et al.
`2009/0073253 A1
`3/2009 Lee ............................ 348, 14.04
`2009 OO79813 A1* 3, 2009 Hildreth ......
`... 348/1403
`2009, O174762 A1* 7, 2009 Takahashi ...
`... 348/14.02
`2009,025 1526 A1* 10, 2009 Book ......................... 348, 14.01
`FOREIGN PATENT DOCUMENTS
`05-056190
`8, 1991
`JP
`05-236472
`2, 1992
`JP
`O7-184174
`12/1993
`JP
`09-083983
`9, 1995
`JP
`2006-20286
`5, 2005
`JP
`* cited by examiner
`Primary Examiner — Stella Woo
`(74) Attorney, Agent, or Firm — Stites & Harbison, PLLC;
`Juan Carlos A. Marquez, Esq.
`(57)
`ABSTRACT
`A videophone system includes a processor which selectively
`sets a television (TV) broadcast program viewing function
`mode and videophone function mode in response to manual
`operation of a remote control, a decoder which performs, in
`the TV program view mode, a TV program-use decode func
`tion for decoding a broadcast program signal received from a
`TV tuner to thereby display it on a display screen while
`producing audio sounds by loudspeakers and which per
`forms, in the videophone function mode a videophone-use
`decode function for decoding a videophone signal received
`from a distant party to thereby display on the screen an image
`of the distant party using the screen and speakers, and an
`encoder which performs a videophone-use encode function
`for encoding a video signal from a camera and a voice signal
`from a microphone to generate a videophone signal, which is
`sent to the distant party via a network.
`8 Claims, 10 Drawing Sheets
`
`
`
`
`
`SPLAYSCEN
`
`3
`
`EcoR
`
`SPEAKER
`
`14
`
`Nsound
`CALL
`DETECOR
`
`NetWORK
`t
`
`
`
`
`
`
`
`soACAS
`TUNER
`
`12
`
`processor
`
`RSGA - 16
`RECEWER
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 3 of 29 PageID #: 7113
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 1 of 10
`
`US 8,363,087 B2
`
`
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 4 of 29 PageID #: 7114
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 2 of 10
`
`US 8,363,087 B2
`
`
`
`FIG.2
`
`DISPLAY SCREEN
`
`BROADCAST
`TUNER
`
`DECODER
`
`BROWSER
`
`INBOUND
`CALL
`DETECTOR
`
`CAMERA
`
`MIC
`
`ENCODER
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 5 of 29 PageID #: 7115
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 3 of 10
`
`US 8,363,087 B2
`
`FIG.3
`
`20
`
`SERVER
`
`SERVER
`
`VIDEOPHONE
`FUNCTION-ADDED
`TV RECEIVER
`
`VIDEOPHONE
`FUNCTION-ADDED
`TV RECEIVER
`
`FIG.4
`
`
`
`
`
`
`
`
`
`CH
`VOL SELECT
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 6 of 29 PageID #: 7116
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 4 of 10
`
`US 8,363,087 B2
`
`FIG.5
`
`TEM
`
`VOD PROCESSING
`
`PHONE PROCESSING
`
`PWBUTTONDEPRESSED
`
`PWBUTTONDEPRESSED
`
`oVODBUTTONDEPRESSED
`oBROWSERSTART
`
`OPHONEBUTTON PRESSED
`OBROWSERSTART
`
`SERVERSENDS
`OPERATIONSCREEN
`
`TITLESELECTED&DECIDED
`
`CALDESTINATION
`SELECTED8DECDED
`
`CHECKCHARGE8
`PLAYBACKRIGHT
`
`ODISPLAY CALLING MESSAGE
`oACTMATECAMERA, MIC&
`ENCODER
`
`eSWITCH DECODER INPUT
`oSWITCHDECODER INPUT
`oDECODER OPERATIONSTART eCODER OPERATIONSTART
`oPLAYBACK
`eTAKING BYPHONE
`e STOPBUTTONDEPRESSED
`DECODER STOP
`eBROWSERSTOP
`oCAMERAMIC&
`ENCODER DEACTIVATED
`
`oSTOPBUTTON DEPRESSED
`ODECODER STOP
`OBROWSERSTOP
`
`7
`
`PLAYBACKEND
`
`CALEND
`
`E.
`DECODER
`SDEACTIVATED
`
`FIG.6
`
`
`
`PWOFF
`
`DURINGVOD
`DURINGTVWATCHING | WR OTHERS
`
`oPRESENTSTATESAVE
`AUTOVIDEORECSTARTAUTO-PAUSE
`AUTOPWON
`. CALHANDING
`OCALHANDLING OCALHANDLENG
`oCALLHANDLING.
`OTVWATCHING OAUTO-PLAYSTART
`ePAUSERESET REERTOsaved
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 7 of 29 PageID #: 7117
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 5 of 10
`
`US 8,363,087 B2
`
`FIG.7A
`SELF-SIDEVIDEOPHONE
`FUNCTION-ADDED TVRECEMER
`DETECTDEPRESSION
`OF PHONEBUTTON 7d
`
`OTHER-SIDEVIDEOPHONE
`FUNCTION-ADDEDTVRECEIVER 1
`
`700
`
`701
`O
`
`
`
`703
`
`
`
`INSTRUCT TO
`ACTIVATE
`DECODER 11'
`
`702
`
`GET BROWSER
`13 STARTED
`
`ENCODER 18
`GETSSTARTED
`
`
`
`
`
`
`
`
`
`
`
`800
`
`ACTMATE
`DECODER 11
`
`
`
`
`
`ACTMATE
`ENCODER 18
`
`NOTIFY
`ACTIVATION OF
`DECODER 11
`
`NOTIFY
`ACTIVATION OF
`ENCODER 18
`
`DECODER 11
`704 - GESSED
`
`INSTRUCT TO
`Eis
`
`
`
`
`
`
`
`706 - TAKINGBYPHONE
`
`SEF-SIDEVIDEOPHONE
`FUNCTION ADDED TVRECEIVER
`710-J D555RSSN
`OF STOPBUTTON7n
`
`714
`
`STERS25Y3559N.
`FUNCTION ADDED TVRECEIVER1'
`
`DEACTMATE
`DECODER 11
`
`
`
`
`
`
`
`
`
`INSTRUCT
`DEACTMATION
`OF DECODER 11
`
`NOTIFY DEACTIVATION
`
`DEACTMATE
`ENCODER 18
`
`
`
`NSTRUCT
`DEACTIVATION
`OF ENCODER 18'
`
`
`
`
`
`711
`
`
`
`712
`
`713
`
`716
`
`DEACTIVATE
`DECODER 11
`
`
`
`DEACTIVATE
`ENCODER 18
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 8 of 29 PageID #: 7118
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 6 of 10
`
`US 8,363,087 B2
`
`
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 9 of 29 PageID #: 7119
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 7 of 10
`
`US 8,363,087 B2
`
`
`
`FIG.9
`
`la
`
`DISPLAY SCREEN
`
`BROADCAST
`TUNER
`
`DECODER
`
`HTML
`BROWSER
`
`INBOUND
`CALL
`DETECTOR
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 10 of 29 PageID #: 7120
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 8 of 10
`
`US 8,363,087 B2
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`POWER ON
`
`FIG.O
`
`CHECK CONNECTION STATE
`OF VIDEO CAMERA30
`
`o NOT CONNECTED
`• CONNECTED-DISCONNECTED
`
`VIDEO CAMERA
`3O CONNECTED
`o CONNECTED
`o DSCONNECTED->CONNECTED
`
`
`
`SET ENCODER 34 OF
`VIDEO CAMERA 3ON
`LIVE OUTPUT MODE
`
`DSABLE VIDEOPHONE
`FUNCTION MODE
`
`ENABLE VIDEOPHONE
`FUNCTION MODE
`
`
`
`POWER ON
`
`FIG.11
`
`CHECK CAL STATE
`
`
`
`VIDEOPHONE
`REQUESTED
`
`SET ENCODER 34 OF
`VIDEO CAMERA 3ON
`LIVE OUTPUT MODE
`
`SET VIDEO CAMERA
`ENCODER IN CUMULATIVE
`VIDEO-REC MODE
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 11 of 29 PageID #: 7121
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 9 of 10
`
`US 8,363,087 B2
`
`
`
`FIG.12
`
`DISPLAY SCREEN
`
`HTML
`BROWSER -
`
`NBOUND
`CALL
`DETECTOR
`
`NETWORK
`I/F
`
`C ENCODER
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 12 of 29 PageID #: 7122
`
`U.S. Patent
`
`Jan. 29, 2013
`
`Sheet 10 of 10
`
`US 8,363,087 B2
`
`
`
`(a) giFTTORIGHT
`(b) 999 LEFT
`
`SPEAKER 3R
`
`SPEAKER 3L
`
`(C) INPUT OF MIC 5
`
`(d) INPUT OF ENCODER 18
`
`A
`
`- A Cas
`- / A? a
`ACA-A2%aea
`-4-a-- Cas
`
`B
`1.
`A
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 13 of 29 PageID #: 7123
`
`US 8,363,087 B2
`
`1.
`TELEVISION RECEIVER WITH A TV PHONE
`FUNCTION
`
`INCORPORATION BY REFERENCE
`
`The present application claims priority from Japanese
`application JP2008-246232 filed on Sep. 25, 2008, the con
`tent of which is hereby incorporated by reference into this
`application.
`
`10
`
`BACKGROUND OF THE INVENTION
`
`2
`troublesome work for the user who is watching his or her
`preferred TV broadcast program.
`In the case of not only starting a telephone call but also
`ending the phone call, the user is required to perform a manual
`operation for the phone call completion (e.g., putting a trans
`ceiver handset on a base unitor. “cradle'). This operation also
`is performed at the location in which the videophone is
`placed.
`In this way, traditionally, when there is an incoming phone
`call during watching a TV broadcast program by TV receiver,
`the user must move from a place at which he or she was there
`until then and perform manual operations for startup and
`completion of the phone call. These operations are time
`consuming and troublesome works to the user.
`To provide a solution to the above-stated problem, this
`technology provides a new and improved TV receiver with
`TV function(referred to as videophone function-added TV
`receiver hereafter) set having videophone call handling func
`tionality, which performs both the reception of a digital
`broadcast program signal and the transmission and reception
`of a videophone signal between itself and another videophone
`function-added TV receiver at the other end of a communi
`cation line, wherein the videophone function-added TV
`receiver is characterized by having a decoder which decodes
`a received digital broadcast program signal and videophone
`signal, a display panel to which is Supplied a video signal that
`is decoded by the decoder and which visually displays it on a
`screen, a loudspeaker module to which is Supplied an audio/
`Voice signal which is decoded by the decoder, a camera, a
`microphone, and an encoder which encodes output signals of
`the camera and microphone.
`Another feature of the videophone function-added TV
`receiver lies in that it further includes an encoder which
`generates a videophone signal to be transmitted for video
`phone communications and a means for detecting completion
`of a videophone signal decoding operation of the decoder and
`for stopping an encoding operation of the encoder for gen
`eration of the videophone signal.
`This technology also provides a video telephone system
`using a plurality of videophone function-added TV receiver
`sets which are linked together via a network for enabling
`users to make videophone calls between these videophone
`function-added TV receivers, wherein each videophone func
`tion-added TV receiver includes a decoder which has a video
`phone-use decode function for decoding a videophone signal
`from another videophone function-added TV receiver at the
`other end of a line and a TV program-use decode function for
`decoding a digital broadcast program received, a display
`panel which displays a video signal that is decoded by the
`decoder, a loudspeaker to which is Supplied an audio signal
`that is decoded by the decoder, a camera, a microphone, an
`encoder which has a videophone-use encode function for
`encoding a video signal from the camera and an audio signal
`from the microphone to thereby generate a videophone signal
`to be sent forth toward a videophone function-added TV
`receiver of a distant party at the other end of a line in a
`Videophone call session, a means for stopping a decoding
`operation of the decoder by means of the videophone-use
`decode function in responding to either a stop operation or the
`end of a videophone signal from the videophone function
`added TV receiver of the distant party in the videophone call
`session, and a means for detecting completion of the video
`phone signal decoding operation performed by the decoder
`and for stopping the encoding operation of the encoder,
`wherein in case one of the videophone function-added TV
`receivers which are presently involved in a videophone com
`munication session experiences termination of the decode
`
`15
`
`25
`
`30
`
`1. Field of the Invention
`The present technology relates to a television (TV) receiver
`set with TV phone functionality added thereto, which is
`arranged to have a video telephone call enabling means to
`thereby make it possible to perform video/voice-based tele
`communication with another machine. This technology also
`relates to a TV phone system using videophone function
`added TV receivers of this type.
`2. Description of the Related Art
`A telephone communication system and TV broadcast sys
`tem are independently established systems. Traditionally, a
`telephone equipment and TV receiver set are quite different
`apparatuses. In cases where a telephone receives an incoming
`call and generates a ring Sound or melody (calling sound)
`signaling the incoming call, a called party fails to hear this
`Sound from time to time. A technique for avoiding this risk is
`disclosed, for example, in JP-A-5-56.190. With this tech
`nique, a telephone is communicatively connected by a signal
`transmission line to a TV receiver, wherein the TV receiver is
`arranged so that upon receipt of an incoming call at the
`telephone, the TV receiver displays a phone call arrival mes
`sage on its display Screen.
`35
`Alternatively, a video telephone apparatus is also known,
`which is arranged to enable a user to make a phone call with
`a distant party at the other end of a line by transmission and
`reception of video images and Voices. This type of video
`phone typically has a camera, microphone, loudspeaker and
`image display device and is designed to transmit toward the
`distant party's videophone video and Voice signals that are
`obtained by the camera and microphone of the videophone on
`the self side, receive video and voice signals from the distant
`party's videophone, and display this video by the image dis
`play device while reproducing the Voice by the speaker. In a
`case where transmission is done to the distant party's video
`phone, a video image and Voice are subjected to compression
`processing (encoding) for transmission while simultaneously
`performing expansion processing (decoding) of a video and
`voice that are received from the distant party's videophone,
`and reproducing them at the image display device and speaker
`(for detail, see JP-A-9-83983).
`
`40
`
`45
`
`50
`
`SUMMARY OF THE INVENTION
`
`55
`
`In the prior known technique as disclosed in JP-A-5-
`56.190, the TV receiver and the videophone are arranged so
`that these are discrete devices which operate independently of
`each other. Upon receipt of an incoming telephone call at the
`Videophone during watching a TV broadcast program by the
`TV receiver, a message which notifies arrival of such phone
`call is displayed on the TV receiver's display screen so that a
`user easily knows that there is an incoming phone call. In this
`event, the user must walk to a place at which this videophone
`is put and perform manual operations for startup of talking
`with a caller on the videophone. This is a time-consuming and
`
`60
`
`65
`
`

`

`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 14 of 29 PageID #: 7124
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`US 8,363,087 B2
`
`3
`operation of the decoder by means of the videophone-use
`decode function thereof in response to execution of the stop
`operation, when the encoding operation of the encoder is
`stopped in responding thereto, the videophone function
`added TV receiver of the distant party, e.g., a calling party or
`a called party at the other end of the line, is such that the
`decoder stops its decoding operation by means of the video
`phone-use decode function thereof to thereby force the
`encoder to stop its encoding operation by means of the video
`phone-use encode function in response to the stop of the
`decoding operation.
`This technology also provides a video telephone system
`using a plurality of videophone function-added TV receiver
`sets which are linked together via a network for enabling
`users to make videophone calls between these videophone
`function-added TV receivers, wherein each videophone func
`tion-added TV receiver includes a decoder which has a video
`phone-use decode function for decoding a videophone signal
`from another videophone function-added TV receiver at the
`other end of a line and a TV program-use decode function for
`decoding a digital broadcast program received, a display
`panel which displays a video signal that is decoded by the
`decoder, a loudspeaker to which is Supplied an audio signal
`that is decoded by the decoder, a camera, a microphone, an
`encoder which has a videophone-use encode function for
`encoding a video signal from the camera and an audio signal
`from the microphone to thereby generate a videophone signal
`to be sent forth toward a videophone function-added TV
`receiver of a distant party at the other end of a line in a
`Videophone call session, a means for stopping a decoding
`operation of the decoder by means of the videophone-use
`decode function in responding to either a stop operation or the
`end of a videophone signal from the videophone function
`added TV receiver of the distant party in the videophone call
`session, a means for detecting completion of the videophone
`signal decoding operation performed by the decoder and for
`stopping the encoding operation of the encoder, and a means
`for detecting completion of the videophone signal decoding
`operation of the decoder and for sending a stop command
`signal to the videophone function-added TV receiver of the
`40
`distant party at the other end of the line, wherein in case one
`of the videophone function-added TV receivers which are
`presently involved in a videophone communication session
`experiences termination of the decode operation of the
`decoder by means of the videophone-use decode function
`45
`thereof in response to execution of the stop operation, when
`the encoding operation of the encoder is stopped in respond
`ing thereto, and also when the stop command signal is sent to
`the videophone function-added TV receiver of the distant
`party, this distant party's videophone function-added TV
`50
`receiver operates so that the decoder stops its decoding opera
`tion by means of the videophone-use decode function thereof
`in response to receipt of the stop command signal and, in
`response to this decode operation stop, the decoder stops the
`decoding operation by means of the videophone-use decode
`function thereof.
`This technology also provides a video telephone system
`using a plurality of videophone function-added TV receiver
`sets which are linked together via a network for enabling
`users to make videophone calls between these videophone
`function-added TV receivers, wherein each videophone func
`tion-added TV receiver includes a decoder which has a video
`phone-use decode function for decoding a videophone signal
`from another videophone function-added TV receiver at the
`other end of a line and a TV program-use decode function for
`decoding a digital broadcast program received, a display
`panel which displays a video signal that is decoded by the
`
`30
`
`4
`decoder, a loudspeaker to which is Supplied an audio signal
`that is decoded by the decoder, a camera, a microphone, an
`encoder which has a videophone-use encode function for
`encoding a video signal from the camera and an audio signal
`from the microphone to thereby generate a videophone signal
`to be sent forth toward a videophone function-added TV
`receiver of a distant party at the other end of a line in a
`Videophone call session, a means for stopping an encoding
`operation by means of the videophone-use encode function of
`the encoder in response to a stop operation of a videophone
`call, a means for detecting completion of an encoding opera
`tion of a video signal from the camera and an audio signal
`from the microphone to be performed by the encoder and for
`stopping the decoding operation by means of the videophone
`use decode function of the decoder, and a means for detecting
`completion of the encoding operation of the encoder and for
`sending a stop command signal to a videophone function
`added TV receiver of a distant party at the other end of a line,
`wherein in case one of the videophone function-added TV
`receivers which are presently involved in a videophone com
`munication session experiences termination of the encode
`operation of the encoder by means of the videophone-use
`encode function thereof in response to execution of a stop
`operation, when the decoding operation of the decoder is
`stopped in responding thereto, and also when the stop com
`mand signal is sent to the videophone function-added TV
`receiver of the distant party, this distant party's videophone
`function-added TV receiver is such that the encoder stops its
`encoding operation by means of the videophone-use encode
`function thereof in response to receipt of the stop command
`signal and, in response to the stop of this encode operation,
`the decoder stops the decoding operation by means of the
`videophone-use decode function thereof.
`This technology also provides a videophone function
`added television receiver having a video camera detachably
`connected to an apparatus main body, wherein the TV
`receiver includes in the apparatus main body a decoder which
`has a television program-use decode function for decoding a
`digital broadcast program signal received and a videophone
`use decode function for decoding a video telephone signal as
`received in a videophone call session, and a processor for
`control of each component, wherein the video camera has a
`camera, a microphone, a storage device which stores therein
`a video signal from the camera and an audio signal from the
`microphone, and an encoder to which are Supplied a video
`signal as output from the camera and an audio signal as output
`from the microphone and which encoder has a videophone
`use encode function of encoding the video signal and the
`audio signal into a video telephone signal to be transmitted to
`a videophone function-added television receiver of a distant
`party in a videophone call session and a video recording-use
`encode function for encoding the video signal and the audio
`signal into a video signal to be recorded in the storage device,
`and wherein in a state that the video camera is connected to
`the apparatus main body, when the decoder is in a state that it
`operates to perform the videophone-use decode function, the
`processor sets the encoderina State that it operates to perform
`the videophone-use encode function thereof, resulting in the
`decoder being switched from the operation state of the video
`phone-use decode function to an operation State of the tele
`vision program-use decode function and, alternatively, when
`the video camera is in a state that it is disconnected from the
`apparatus main body, the processor sets the encoder in a state
`that it operates to perform the video recording-use encode
`function.
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`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 15 of 29 PageID #: 7125
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`US 8,363,087 B2
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`6
`phone is canceled by the echo canceller using the input audio
`signal of the speaker and is then Supplied to an encoder.
`With the above-stated arrangement, it is possible to provide
`a TV receiver with increased usability for users. For example,
`Video image displaying for a videophone call is performed
`using the display screen and loudspeaker module which are
`inherently used for digital TV broadcast programs; so, it is
`possible for a user to start a phone call and finish the call
`without having to move from a place at which S/he is enjoying
`a digital TV broadcast program. This saves the user's labor for
`Such moving action. Additionally, upon completion of the
`phone call, the decoder and encoder are automatically ren
`dered inoperative without requiring the user to perform
`manual operations. This results in a decrease in labor for Such
`operations. It is also possible to prevent a calling party from
`becoming aware of the digital TV broadcast program which is
`watched by the user.
`Other objects, features and advantages of the invention will
`become apparent from the following description of the
`embodiments of the invention taken in conjunction with the
`accompanying drawings.
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`In the videophone function-added television receiver, the
`Video camera is a separate equipment independent of the
`apparatus main body and is detachably coupled to the appa
`ratus main body.
`Alternatively, in the videophone function-added television
`receiver, the video camera is internally mounted in the appa
`ratus main body.
`This technology also provides a videophone system using
`a plurality of videophone function-added TV receivers of the
`type stated above, which are linked together via a network for
`enabling users to make a videophone call between any two of
`the videophone function-added TV receivers, wherein the
`system includes a means for stopping an encoding operation
`by means of a videophone-use encode function of an encoder
`in response to a stop operation of a videophone call, a means
`for detecting completion of an encoding operation of a video
`signal from a camera and an audio signal from a microphone
`to be performed by the encoder and for stopping a decoding
`operation by means of a videophone-use decode function of a
`decoder, and a means for detecting completion of the encod
`ing operation of the encoder and for sending a stop command
`signal to a videophone function-added TV receiver of a dis
`tant party at the other end of a line, wherein in case one of the
`videophone function-added TV receivers which are presently
`involved in a videophone communication session experi
`ences termination of the encode operation of the encoderby
`means of the videophone-use encode function thereof in
`response to execution of a stop operation, when the decoding
`operation of the decoder is stopped in responding thereto, and
`also when the stop command signal is sent to the videophone
`function-added TV receiver of the distant party, this distant
`party's videophone function-added TV receiver is such that
`the encoder stops its encoding operation by means of the
`Videophone-use encode function thereof in response to
`receipt of the stop command signal and, in response to this
`encode operation stop, the decoder stops the decoding opera
`tion by means of the videophone-use decode function thereof.
`This technology also provides a videophone function
`added TV receiver, whereina decoder includes a first decoder
`operative to decode the received digital broadcast program
`signal and a second decoder for decoding the video telephone
`signal, whereina display panel performs two-window display
`for simultaneously displaying on one screen a video image
`based on the digital broadcast program signal decoded by the
`first decoder and a video image based on the video telephone
`signal decoded by the second decoder, wherein an echo can
`celler is provided to receive an audio signal as output from the
`microphone and an input audio signal of the speaker, and
`wherein an echo signal due to unwanted mixture of audio
`Sounds from the speaker into the audio signal as output from
`the microphone is canceled by the echo canceller using the
`input audio signal of the speaker and is then Supplied to an
`encoder.
`The technology further provides a videophone system
`using videophone function-added TV receivers of the type
`stated Supra, whereina decoder includes a first decoder opera
`tive to decode the received digital broadcast program signal
`and a second decoderfor decoding the video telephone signal,
`wherein a display panel performs two-window display for
`simultaneously displaying on one screen a video image based
`on the digital broadcast program signal decoded by the first
`decoder and a video image based on the video telephone
`signal decoded by the second decoder, wherein an echo can
`celler is provided to receive an audio signal as output from the
`microphone and an input audio signal of the speaker, and
`wherein an echo signal due to mixture of audio Sounds from
`the speaker into the audio signal as output from the micro
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`BRIEF DESCRIPTION OF THE DRAWINGS
`
`FIG. 1 is a diagram showing a perspective view of exterior
`appearance of a videophone function-added television (TV)
`receiver set in accordance with a first embodiment.
`FIG. 2 is a block diagram showing a practical example of
`an electrical/electronic circuit configuration of the video
`phone function-added TV receiver of the first embodiment
`shown in FIG. 1.
`FIG. 3 is a system diagram showing one embodiment of a
`video telephone system using videophone function-added TV
`receivers.
`FIG. 4 is a plan view of an example of operation part of a
`remote control in FIGS. 1 and 2.
`FIG. 5 is a diagram showing, in table form, processing
`procedures in a video-on-demand (VOD) function mode and
`videophone function mode of the videophone function-added
`TV receiver shown in FIGS. 1 and 2.
`FIG. 6 is a diagram showing one example of inbound call
`handling processing in a case where there is a call-in of the
`videophone function-added TV receiver shown in FIG. 1 or
`FIG 2.
`FIGS. 7A and 7B are flow charts showing practical
`examples of forced start/stop control operations of a decoder
`and encoder, which are executed by respective processors
`upon startup and completion of a phone call between the
`videophone function-added TV receivers shown in FIG. 3.
`FIG. 8 is a diagram showing a perspective view of outer
`appearance of a videophone function-added TV receiver in
`accordance with a second embodiment.
`FIG. 9 is a block diagram showing a practical example of a
`circuit configuration of the videophone function-added TV
`receiver of the second embodiment shown in FIG. 8.
`FIG. 10 is a flowchart showing a procedure for connect
`control of a video camera of FIG. 9 to be performed by a
`processor in videophone function mode.
`FIG. 11 is a flowchart showing a procedure for select
`control of an operation mode of the video camera in FIG. 9.
`FIG. 12 is a block diagram showing a practical example of
`a circuit configuration of a videophone function-added TV
`receiver in accordance with a third embodiment.
`FIG. 13 is a diagram for explanation of leakage of audio
`Sounds from a pair of loudspeakers to a microphone in the
`videophone function-added TV receiver shown in FIG. 12.
`
`

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`Case 5:19-cv-00036-RWS Document 164-3 Filed 12/16/19 Page 16 of 29 PageID #: 7126
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`US 8,363,087 B2
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`7
`FIGS. 14 is a diagram schematically showing waveforms
`of Some major signals for explanation of an operation of an
`echo canceller shown in FIG. 12.
`
`DESCRIPTION OF THE EMBODIMENTS
`
`Currently preferred embodiments will be described with
`reference to the accompanying figures of the drawing below.
`FIG. 1 is a diagram showing a perspective view of exterior
`appearance of a television (TV) receiver set with additional
`video telephone functionality in accordance with a first
`embodiment. The videophone function-added TV receiver is
`designated by reference numeral 1, which has a display
`screen 2, loudspeaker module 3, video camera 4, microphone
`5, communications network cable 6, and wireless remote
`control device 7.
`As shown in FIG. 1, the loudspeaker module 3 includes a
`couple of spaced-apart speakers, which are mounted in a front
`panel of housing of the videophone function-added TV
`receiver 1 at right and left side corners below the display
`screen 2. The camera 4 is embedded in the front panel at a
`center position of lower side which is midway between the
`right and left speakers. This camera 4 has its image pickup
`lens which is exposed to outside. The microphone 5 is built in
`the front panel of housing at an upper center position above
`the display screen 2. This first embodiment is the one that has
`a built-in video camera in the housing of videophone func
`tion-added TV receiver 1.
`The videophone function-added TV receiver 1 also has an
`antenna (not shown) for enabling it to receive digital broad
`cast programs and, simultaneously, is linked by the network 6
`to a video-on-demand (VOD) server, thereby enabling it to
`receive services (downloads) of any available contents from
`this VOD server-say, VOD contents. The videophone func
`tion-added TV receiver 1 is also linked by the network 6 to
`other videophone function-added TV receivers and thus is
`capable of performing video telep