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`US$07480484BZ
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`(:12; United States Patent
`Nam
`
`US 7AM“““““
`(10) Patent No;
`(45) Date of Patent: M‘Mjan. 20, 2009
`
`(54} MULTI-VIDEO INTERFACE FORA MOBILE
`DEVICE
`
`05}
`
`Inventor: Nicholas Nam, Pleasanmn, CA (US)
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`2007/0196978 A1 *
`8.52007 Kunii $1311
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`HTC America, Inc.
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`HTC EXHIBIT 1034
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`V. Virginia Innovation
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`HTC EXHIBIT 1005
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`IPR2017-00874v
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`IPR2017-00874
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`

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`US ?,480,484 82
`
`1
`EWULTI-VIDEO INTERFACE FOR A MOBILE
`DEVICE
`
`BACKGROUND
`
`The present invention relates to mobile devices. More par-
`ticularly, the present invention relates to a multiw'ideo inter—
`face for mobile devices.
`Many mobile devices, such as cellular telephones. personal
`digital assistants (PDAs). and handheld video games, include
`an attached or embedded display to present visual informa»
`tion and/or a memory unit to store data or images. Typically,
`because the mobile devices are of compact sire, the display
`and memory unit are also constrained in size.
`Still images or moving images (cg, video) can be viewed
`or stored at a display or memory unit, respectively. ofa mobile
`device. Unfortunately, due to the large data size of quality
`digital imagesivideo. even compressed digital images/video.
`the amount of imagesfvideo that can be stored at the mobile
`device is limited. Presently to store or record any significant
`amount of images/video. an additional (cg. external)
`memory or storage unit is required, such as a videotape.
`Also a user may wish to View information provided by the
`mobile device at a display other than the display native to the
`mobile device. The alternate display may be desirable -
`because this display has a larger viewing size, is of a higher
`resolution or quality (cg. color display rather than a mono—
`chrome display), or perhaps to View the information simulta—
`neously on more than one display. Unfortunately, present
`mobile devices are not capable of, among others, providing
`multiple display outputs.
`Thus. there is a need for a mobile d‘vicc capable of mulw
`tiple display inputsfoutputs. "lhere is a former need for the
`multiple display »
`outputs of the mobile device in be
`
`able to facilitate presentation and storage of images or video.
`
`7t;
`
`30
`
`BREE? DESCRIPTION OF THE i'lRAW lNéfiiS
`
`The ucniplan embodiments will become more fully
`understood from the lotlowing detailed description, lesson in
`conjunction with the accompanying drownigs, wherein like
`reference numerals denote like elements, in which:
`lle. 1 is a block diagram clone embodnnent ole mobile
`device.
`Sizes of components are not drawn to scale. and various
`components may be enlarged or reduced to improve drawing
`legibility. Component details have been abstracted in the Fig
`tires to exclude details such as position ol‘ coriiponents and
`certain precise connections between such components when
`such details are unnecessary to the invention.
`
`4s
`
`
`
`UlE'lAlLlilf) “DES; lel’l‘lilN
`
`in one embodiment. images/video from a mobile device
`can be displayed and/or stored at one or more external dis—
`plays or storage units. Such images/video can also be dis--
`played andfor stored simultaneously at a display or storage
`
`unit embedded in the mobile device. The external displa {s}
`and storage unjtt’sl can be televisions. video cassette record—
`ers {Vt‘RsL video tape recorders (”‘Vl‘Rs’j, etc.
`In I71G. 1 . a block diagram ot‘one embodiment of a mobile
`device 100 is shown.
`"lite mobile device 1 00 is configured to he a portable device
`
`that plot-ides V1”12€tl
`information and one or more oi'a variety
`ot‘other functions such as image/video capture. wireless com—
`munication, etc. The mobile device 100 rnav be, but is not
`
`limited to. a cellular phone. personal digital a
`‘tant (FDA).
`
`Page 4 of 7
`
`2
`video game console, digital camera, digital camcorder, com—
`
`puting device, or
`‘ireless communication device.
`The mobile deuce 100 includes a display interface 102, a
`display 104, an image/video processing unit 106, a camera
`108, an audio processing unit 110. a microphone 112, a
`speaker 114, a baseband processing unit 116. and a trans—
`ceiver 118. The display interface 102 is coupled between the
`display 104 and the image/Video processing unit 106. The
`camera 108 is coupled to the image/video processing unit
`106. Each of the microphone 112 and the speaker 114 is
`coupled to the audio processing unit 110. The transceiver 118
`is coupled to the baseband processing unit 116. The process-
`ing units 106. 110, and 116 and the display interface 102 are
`in commtmication with each other.
`The display interface 102 is configured to format and route
`still andi’or moving images (hereinafter referred to as images
`and videos. respectively) to and from the display 104, the
`image/video processing unit 106. the baseband processing
`unit 1 16, an external display 120. and an external storage unit
`122. The display interface 102 configures the imagesr'video
`for transport. storage, or display. The output signals from the
`display interface 102 to each of the external display 120 and
`storage unit 122 can be analog or digital signals. The output
`signals can also be composite or component signals. Coni-
`posite signals are communicated in a single signal line, as
`they contain all signal components except power and ground.
`Component signals are communicated in more than one sig-
`nal line, as all signal components cannot be provided in any
`single signal line. The display interface 102 is discussed in
`greater detail below.
`'lhe display 104 is configured to present visual information
`provided by the display interface 102. The display 104 is
`attached, embedded. or otherwise native to the mobile device
`100. The display 1 04 can be a variety of display types suitable
`for mobile devices. such as a liquid crystal display (LCD) or
`
`
`touch screen. The display 104 in .« be a monochmme or c(
`'
`display.
`'lhc camera 108 is configured to capture imagesl'vit *o in“
`an ohiwt cliiutcrest. The camera 103 may be. for
`pie :2
`
`
`
`semicond :tor sensor array. Captured images
`den are
`transmitted to the processing units 106 and 110.
`The microphone 112 is configured to capture audio si grin is.
`The microphone 112 may be embedded in the mobile device
`100 or be a detachable unit. the captured audio signals are
`then transmitted to the processing unit 110. The speaker 114
`is configured to broadcast or project audio sounds to the
`environment. The audio signals corresponding to the audio
`sounds to be projected are provided by the processing unit
`110.
`
`The t?" '
`'
`' ’i‘vtfl” 118 is configured to transmit and receive
`wireles signals to and from ant‘tlllfil‘ Wireless transceiver {not
`
`
`she
`}. lhc wireles. signals can compri.
`. variety otdatzr,
`including data representative ofimages/video. sound, and/or
`data. 'ihe transceiver 118 and the processing unit 1 16 condi«
`tion signals for wireless transmission leg. configuring data
`on a carrier frequency, configuring control channels. etc.) and
`reassemble received Wireless signalsAt least one ot'the trans»
`
`cciver 138 and the proc;
`'s’ig on $1
`1 15 may include a
`memory. controller. processor. router. switch, bus. etc.
`to
`pcrtbrnt
`the Wireless corrirutmication functions.
`in one
`embodiment. the transceiver 118 may comprise an antenna
`and the processing unit 116 may prtiVide all other function»
`alities,
`
`’i‘lic pr:.>cessing unit 106 is configured to process image
`video signals received or transmitted by the mobile device
`100. inia‘
`>ideo signals {also retcrred to as input signals)
`
`can be re; 3 ed from each at the display 104 if eg. as a touch
`
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`US 7,480,484 82
`
`no
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`3
`screen). camera 108, transceiver 118, external display 120,
`and external storage unit 122. Depending on the form of the
`input signals and thei.r destination. the processing unit .106
`performs one or more functions. For example, if input signals
`are coming from the camera 108 and such input signals are to
`be stored within the mobile device 100, then the processing
`unit 106 compresses the input signals (using image compres—
`sion schemes such as JPFG, M—JPEG, or MPEG) to reduce
`the data size and routes the compressed input signals to a
`memory included in the mobile device. in another example, if in
`input signals are coming from the transceiver 118 and such
`input signals are to be displayed at the display 104. then the
`processing unit 106 decompres ses the input signals. transmits
`the decompressed input signals to the display interface 102.
`the decompressed input signals are conditioned into signals
`compatible with the display 104, and are transmitted to the
`display 104 for presentation. Accordingly, the processing unit
`106 can include one or more image/video encoders and
`decoders, memory, processor, inicrocontrollcr. buffer, and
`routers.
`
`157
`
`The processing unit 110 is configured to process audio
`signals received or transmitted from the mobile device 100.
`The audio signals can be received from each of the camera
`108, microphone 112. transceiver 118, external display 120.
`and external storage unit 122. The audio signals can be trans»
`mitted to each of the display 104, speaker 114, transceiver
`118, external display 120, and external storage unit 122. The
`audio signals may be provided as part of the image/video
`signals. The processing unit 110 appropriately conditions the
`audio signals depending on their state and destination. The
`processing unit 110 can include audio compressionfdecom»
`pression components or algorithms {cg MP3 compression}.
`processors, microcontrollcrs. filters. auditor memory.
`fl‘he processing units 106 and 110 are in communication or
`worlt in conjunction Will) each other to handle the image?
`video and"or audio signals received. routed, or transmitted by
`the mobile device 100. it is contemplated that the pmcessing
`units 106 and 110 may be embodied 115 a single corrquent.
`
`The :3 wmponents ol‘the mobile device 100 may he embod-
`ied as hardware, firmware and‘or software. For example, the
`
`camera 108 ms
`'omprise a sensor chip. the processing units
`106 and 110 and the display interface 102 may comprise
`another chip, and the processing unit 116 and the transceiver
`118 may comprise yet another chip. :‘ldternatively, the func—
`tionalities ot’two or more chips may be embodied in a single
`chip such as a svstemwonechip {S{)( i). it should also be under“
`stood that one or more components illustrated in NC. 1 may
`be omitted depending on the mobile device 100. For instance,
`if the mobile device 100 has no wireless communication
`
`capabilities. the transceiver 118 and the pro
`' 1;; unit 116
`
`would not be included. Alternativ y. lithe mobile device 100
`
`is used pritrlarily for capturing images. fideo, then more than
`one memory unit. or a detachable or swappable memory
`onitts). may be native to the mobile device.
`The external display 120 and the external storage unit 122 .
`are not embedded or native to the mobile device 100.
`:X’ithough each ot‘ the external display 120 and the external
`storage unit 122 can be coupled to the mobile device 100, the
`coupling is amomplished for purposes oi‘transmitting image!
`video and/or audio signals. The external display 120 and the
`external storage unit 122 are typically too large and cumber—
`some to be portable or to be moved around with the mobile
`device 100.
`
`television. monitor, or
`The external display 120. cg. '1
`other display type, receives and-er transmits image/video
`signals with the display interface 102. le-J
`-~M_~
`120 can include an S~video in port and the display ‘
`teriacc
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`65
`
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`“orres o
`"
`l
`S-video out port. Same or
`
`difierent images/video can be simultaneous y \' ved at the
`display 104 and the external display 120. The external display
`120 may be one or more displays. ’lhe external display 120
`can be a large screen TV. a plasma display, an LCD, 3 rear
`projection display. a cathode ray tube (CRT) display, or a
`variety of other display types or sizes compatible with con—
`ventional video format, such as NTSC, PAL, or digital video
`formats.
`Moreover. the external storage unit 122. eg. a video tape
`recorder W’TR). a video cassette recorder {VCR}, a record-
`able DVD player, etc, can also receive or transmit image/
`video signals with the display interface 102. Hence. image/
`video from the mobile device 100 can be stored at the external
`storage unit 122, or stored images/video from the external
`storage unit 122 can be displayed or wirelessly transmitted at
`the mobile device 100. The display interface 102 is config—
`ured to allow same or different images/video to be stored
`simultaneously at the mobile device 100 and the external
`storage unit 122, or same or different images/video to be
`simultaneously displayed at the external display 120 and the
`display 104. lhe external storage unit 122 may be one or more
`storage units.
`It is also contemplated that a user may select between
`storing and/orviewing information at the external display 120
`and/or external storage unit 122 only, even though the infor—
`mation origination occurs from the mobile device 100.
`The display interface 102 is a multiple display interface or
`a multi—video interface and is adapted to convert the images
`and/hr motion video produced by the image/video processing
`unit 106 into one ofany ot’a variety ofoutput formats, such as
`NTSC‘. PAL. or digital video.
`in this manner, a system and method—for viewing informa-
`tion from a mobile device at more than one display, won a
`display not attached or embedded to the mobile devtce. is
`disclosed herein. A display interface is configured to permit
`imagesfvideo captured. received. or otherwise present at the
`
`mobile device to he outputied to s variety ofdevices not native
`to the mobile device, in a llirmat compatible Wit . standard
`
`
`'s. monitor: VCRS, and other entertainment devices. Thus,
`imagesfvideo can be more readily viewed at higher resolution
`and Viewing size. as Well as being able to store large amounts
`o t iota ges/video,
`Unless the context clearly requires otherwise, throughout
`
`the description and the claims, the words “comprise ” “‘com»
`prismg" and the like are to be construed in an inclusive sense
`as opposed to an exclusive or exhaustive sense; that is to say.
`in a sens 1 of “including. but not limited to." Words using the
`singular or plural ntunber also include the plural or singular
`ntmiber,
`respectively. Additionally,
`the words ”herein."
`“above.“ “below." and storms ;’it'sirnilar import. when used in
`
`this application. : all refer to this application as a Whole and
`not to any particular portion of this application. When the
`claims use the words “or" in reference to a list ot‘two or more
`items, that word covers all oi'the following interpretations oi
`
`the word: any oi‘the items in the '
`. all ot‘the items in the list.
`and any combination of the items in the list.
`From the Reclining, it will be appreciated that specific
`embodiments oldie invention have been described herein for
`purposes of illustration. but that various modifications may be
`made Without deviating from the spirit and scope ot‘the inven»
`tion. Accordingly, the invention is not limited except as by the
`appended claims.
`1 claim:
`
`1. A mobile phone. comprising:
`a native display:
`a processing unit;
`
`Page 5 of”?
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`

`

`US 7,480,484 B2
`
`15
`
`r33
`
`25
`
`5
`a local memory of the mobile phone coupled to the pro—
`cessing unit, the local memory configured to store image
`signals for display;
`an interface to format and route signals between the mobile
`phone and an external device coupled to the mobile
`phone, the interface configured to:
`convert the format of image signals used within the
`mobile phone to generate converted image signals for
`use by the external device; and
`convert the format of image signals received from the
`external device to generate convened image signals
`for use by the mobile phone:
`wherein the converted image signals for use by the
`external device and the converted image signals for
`use by the mobile phone are capable ot‘being stored
`and displayed simultaneously at the external device
`and the mobile phone.
`2. The mobile phone of claim 1. wherein the external
`device is selected from a group including a television. a
`monitor, a video cassette recorder (VCR).
`21 video tape
`recorder (VTR). and a recordable DVD device.
`3. The mobile phone of claim I, wherein the external
`device is a video recording unit and the interface converts
`video signals stored by the video recording unit into a format
`compatible for local storage and display in the mobile phone.
`4. The mobile phone of claim I, wherein the external
`device is a television comprising a display and a storage unit
`and the interface converts video signals received from the
`storage unit of the television into a format compatible for
`local storage and display in the mobile phone.
`5. The mobile phone ol'claim 1. wherein die mobile phone
`inc hides a transceiver and a baseband processing unit coupled
`to the processing unit to provide wireless communication and
`the mobile phone is configured to permit, Video signals
`rtmeived from the: external device to be. transmitted from the
`mobile phone.
`6. The mobile phone of claim 5. further comprising a
`camera native to the mobile phone.
`'3. The mobile phone ol‘ claim 3. wherein th . interface is
`configured to convert the format of video signals output from
`the mobile phone into the image signal format ot’tltc external
`device.
`8. The mobile phone of claim 1. wherein the interface is
`coupled to the display and to the processing unit.
`9. ’lhe mobile phone ofclaim 1, wherein one or more oftlie ..
`image signals are stored for later display at the native display
`of the mobile phone.
`10. The mobile phone of claim 1, wherein the converted
`image signals for use. by the mobile phone and the converted
`image signals for use by the external device have different
`sizes and resolutions.
`ll.A mobile phone. comprising:
`a native display:
`a processing unit;
`a local memory of the mobile phone coupled to the pro»
`cessing unit. the local memory configured to store image
`signals for display;
`an interface to Format and route signals heaven-‘11 a set of
`components of the mobile phone and an external video
`device coupled to the mobile phone.
`the interface being operative to convert the format of
`image signals output from the mobile phone to the
`external video device to generate converted image
`
`; gnals for use by the external vitico device and con-
`vert the format 01‘ image signals received from the
`external video device to generate converted image
`signals for use by the mobile phone.
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`wherein the converted image signals for use by the exter-
`nal device and the converted image signals for use b
`the mobile phone are capable of being stored and
`displayed simultaneously at the external device and
`the mobile phone.
`12. The mobile phone of claim I], wherein the external
`video device is a television comprising a display and a storage
`unit and the interface converts video signals received by the
`storage unit of the television into a format compatible for
`local storage and display in the mobile phone.
`13. The mobile phone of claim 11. wherein the external
`video device is a video recording storage unit and the inter-
`face converts video signals stored by the Video recording unit
`into a format compatible for local storage and display in the
`mobile phone.
`14. The mobile phone of claim 11, wherein the mobile
`phone includes a transceiver and a baseband processing unit
`coupled to the processing unit to provide Wireless communi—
`cation and the mobile phone is configured to permit video
`signals received from the external video device to be trans—
`mitted from the mobile phone.
`15. The mobile phone of claim 1 1. wherein one. or more of
`the image signals are stored for later display at the native
`display of the mobile phone.
`16. The mobile phone of claim 11. wherein the converted
`image signals for use by the mobile phone and the converted
`image signals for use by the external device have different
`sizes and resolutions.
`
`17. A mobile phone, comprising:
`a native display;
`a processing unit;
`a transceiver and a baseband processing unit coupled to the
`processing unit to provide wireless tommunication:
`a local memory of the mobile phone coupled to the pro»
`
`cc sing unit. the local riteniory configured to store into ‘1:
`signals for display;
`an intcrfltce to format and route signals between a set of
`components ofthe mobile phone and an external video
`device coupled to the mobile phone. the interface corn
`figured to convert image signals usai within the mobile
`phone to generate converted image signals for use by the
`external video device; and
`
`the mobile phone configured to receive video signals
`from the external video device and convert
`the
`received video signals to generate converted image
`signals for use by the mobile phone for storage. dis”
`play. or Wireless transmission.
`wherein the converted image signals for use by the
`external devtce and the converted image signals for
`use by the mobile phone are capable ofbeing stored
`and displayed simultaneously at the external device
`and the mobile phone.
`18. The mobile phone of claim 17. wherein the external
`
`
`video device is a television comprising a displ
`anda stor“ '
`‘*
`unit and the interface converts video signals received by the
`storage unit ot’the television into a format compatible for
`local storage and display in the mobile phone.
`l9 The mi'tbile phone of claim l7. wber *in the external
`video device is a video recording storage unit and the inter-
`face converts video signals stored by the video recording unit
`into a format compatible for local storage and display in the
`mobile phone.
`20. The mobile phone ofclaim W, wherein one or more of
`the image signals are stored for later display at the native
`display of the mobile phone.
`
`

`

`US £480,484 82
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`7
`21‘ The mobile phone of claim 17, wherein the converted
`image signals for use by the mobile phone and the converted
`image signals for use by the external device lave differen
`sizes and resolutions.
`22. A system for storing and displaying images and video
`in multiple devices» comprising:
`at least one external devicc‘ comprising:
`a display configured to display images and video; and
`a storage unit configured to store images and Video: and
`a mobile phone. comprising:
`a native display configured to display images and video;
`a local memory configured to store images and video:
`and
`an interface to format and route signals between the
`mobile phone and the at least one external device, the
`interface configured to:
`
`m
`
`If;
`
`8
`convert image signals received by the mobile phone
`from the at least one external device to generate
`converted image signals it): use by the mobile
`phone; and
`convert image signals received by the at least one
`external device from the mobile phone to generate
`converted image signals for use by the at least one
`external device,
`wherein the converted image signals for use by the
`at least one external device and the converted
`image signals for use by the mobile phone are
`capable of being stored and displayed Simulta-
`neously at the at least one external device and the
`mobile phone.
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