WO2012131559A1 - Applications de flux vidéo normal et auxiliaire - Google Patents

Applications de flux vidéo normal et auxiliaire Download PDF

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Publication number
WO2012131559A1
WO2012131559A1 PCT/IB2012/051420 IB2012051420W WO2012131559A1 WO 2012131559 A1 WO2012131559 A1 WO 2012131559A1 IB 2012051420 W IB2012051420 W IB 2012051420W WO 2012131559 A1 WO2012131559 A1 WO 2012131559A1
Authority
WO
WIPO (PCT)
Prior art keywords
video
video stream
channels
screen
screen device
Prior art date
Application number
PCT/IB2012/051420
Other languages
English (en)
Inventor
Perry Gerard Mevissen
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2012131559A1 publication Critical patent/WO2012131559A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

Definitions

  • the invention relates to an apparatus, to a first screen device, to a second screen device, to a system, to a method, to a computer program product and to a medium.
  • Examples of such an apparatus are cable receivers and cable interfaces and satellite receivers and satellite interfaces and set top boxes etc.
  • Examples of such a first screen device are television receivers and relatively large display devices etc.
  • Examples of such a second screen device are mobile devices and remote controls and relatively small display devices etc.
  • the apparatus may form part of the first screen device or not.
  • a first video stream comprising video channels at a first resolution
  • a second video stream comprising the video channels at a second and lower resolution
  • the first video stream is also known as a normal video stream
  • the second video stream is also known as a companion video stream.
  • a user can watch a video channel at a relatively high quality.
  • the companion video stream is offered in parallel to the normal video stream.
  • a new video channel from the companion video stream is offered to the user, and the user can watch this new video channel at a relatively low quality.
  • the same new video channel but now from the normal video stream is offered to the user, and the user can watch the same new video channel from now on at a relatively high quality.
  • EP 1 755 330 Al discloses a system and a method for smoothing channel changing in internet protocol television systems, and suggests to reduce the noticeable snap in the sharpness by using information from the normal video stream to slowly increase a resolution of the video channel from the companion video stream while being watched.
  • Further objects of the invention are to provide a first screen device, a second screen device, a system, a method, a computer program product and a medium.
  • an apparatus comprising an input part for receiving a first video stream comprising video channels at a first resolution and for receiving a second video stream comprising the video channels at a second resolution, the second resolution being lower than the first resolution, the apparatus comprising an output part for supplying one or more of the video channels from the second video stream to a screen device for displaying at least a part of a video channel from the second video stream separately from the video channels from the first video stream.
  • the at least part of the video channel from the second video stream is no longer used for temporarily replacing a video channel from the first video stream, but is used for being displayed more separately from the video channels from the first video stream. This offers a number of additional applications.
  • the first and second video streams are only used "combinedly".
  • a new purpose is served. This new purpose is different from old purposes, such as reducing a blind time during a channel change and such as smoothing a channel change. So, "separately” here means “not combinedly” or “non-combinedly”. Further, it should not be excluded that the new purposes and one or more of the old purposes are used in combination.
  • the input part for example comprises a first input for receiving the first (normal) video stream and a second input for receiving the second (companion) video stream, or comprises one input for both receptions.
  • the output part for example comprises an output for supplying one or more of the video channels from the second video stream to a screen device.
  • the output part for example comprises a first output for supplying one or more of the video channels from the first video stream to a first screen device and a second output for supplying one or more of the video channels from the second video stream to the first screen device and/or to a second screen device or one output for both supplies.
  • the first and second video streams may be different video streams or may be different parts of one and the same video stream.
  • An embodiment of the apparatus is defined by the first video stream being a normal video stream and the second video stream being a companion video stream.
  • the companion stream for fast channel changes is further described in the document IPI 2847r5 Companion Stream FCC Draft Text.
  • An embodiment of the apparatus is defined by further comprising a transmitter for wirelessly transmitting the at least part of the video channel from the second video stream to the screen device.
  • a transmitter for wirelessly transmitting the at least part of the video channel from the second video stream to the screen device.
  • a first screen device for receiving from the apparatus as defined above one or more of the video channels from the first video stream and one or more of the video channels from the second video stream, the first screen device comprising a screen for displaying a video channel from the first video stream and for displaying at least a part of a video channel from the second video stream separately from each other.
  • the video channel from the first video stream and the at least part of the video channel from the second video stream are displayed separately but via one and the same first screen device.
  • An embodiment of the first screen device is defined by the video channel from the first video stream being displayed in a first part of the screen and the at least part of the video channel from the second video stream being displayed in a second part of the screen.
  • the video channel from the first video stream and the at least part of the video channel from the second video stream are displayed separately but via one and the same screen, for example to create a picture-in-picture situation or to create a left- image-right-image situation etc.
  • An embodiment of the first screen device is defined by the second part of the screen being a thumbnail on or near the first part of the screen, the thumbnail having a still content or a moving content.
  • a viewer can watch the video channel from the first video stream as a main channel and the viewer can at the same time get an overview of one or more other parallel channels via one or more thumbnails, for example to assist the viewer in making a channel choice. More than one thumbnail per parallel channel should not be excluded.
  • An embodiment of the first screen device is defined by the screen comprising a first screen for displaying the video channel from the first video stream and a second screen for displaying the at least part of the video channel from the second video stream.
  • the video channel from the first video stream and the at least part of the video channel from the second video stream are displayed separately via different screens of one and the same first screen device.
  • An embodiment of the first screen device is defined by further comprising a transmitter for wirelessly transmitting the at least part of the video channel from the second video stream to a second screen device.
  • the at least part of the video channel from the second video stream may be used in the first screen device for reducing a blind time during a channel change and/or for smoothing a channel change and/or for assisting the viewer in making a channel choice etc. and it is transmitted from the first screen device to the second screen device for allowing the same viewer or another viewer to watch the main channel (but at the second and lower resolution) or the other parallel channel (at the second and lower resolution) via the second screen device.
  • a wireless coupling is to be preferred.
  • a viewer can walk away from the first screen device without needing to miss a part from one of the video channels of the relatively high resolution by taking with him / her the second screen device that displays the same one of the video channels but of the relatively low resolution. Or a first viewer can watch one of the video channels of the relatively high resolution via the first screen device and a second viewer can watch another one of the video channels of the relatively low resolution via the second screen device.
  • a first screen device comprising the apparatus as defined above, and further comprising a screen for displaying a video channel from the first video stream and for displaying at least a part of a video channel from the second video stream separately from each other.
  • the apparatus forms part of the first screen device.
  • a second screen device for receiving from the apparatus as defined above or from the first screen device as defined above one or more of the video channels from the second video stream, the second screen device comprising a screen for displaying at least a part of a video channel from the second video stream separately from the video channels from the first video stream.
  • a second screen device comprising a receiver for wirelessly receiving from the apparatus as defined above or from the first screen device as defined above one or more of the video channels from the second video stream, the second screen device comprising a screen for displaying at least a part of a video channel from the second video stream separately from the video channels from the first video stream.
  • a system is provided comprising the apparatus as defined above and further comprising the first screen device as defined above and/or the second screen device as defined above.
  • a method comprising a step of receiving a first video stream comprising video channels at a first resolution and a step of receiving a second video stream comprising the video channels at a second resolution, the second resolution being lower than the first resolution, and a step of supplying one or more of the video channels from the second video stream to a screen device for displaying at least a part of a video channel from the second video stream separately from the video channels from the first video stream.
  • a computer program product for performing the steps of the method as defined above.
  • a medium for storing and comprising the computer program product as defined above.
  • Embodiments of the first and second screen devices and of the system and of the method correspond with the embodiments of the apparatus.
  • companion video stream could be used for more than one purpose.
  • a basic idea could be that at least a part of a video channel from a companion video stream may be displayed separately from a video channel from a normal video stream.
  • a problem to provide an improved apparatus has been solved.
  • a further advantage could be that by offering more applications for a companion video stream this companion video stream will become more interesting to the public.
  • Fig. 1 shows an apparatus and a first screen device
  • Fig. 2 shows an apparatus and first and second screen devices
  • Fig. 3 shows a first screen device comprising an apparatus
  • Fig. 4 shows a system comprising an apparatus and first and second screen devices
  • Fig. 5 shows a first screen device.
  • the apparatus 1 comprises an input part 11 such as one or two inputs for receiving a first video stream 21 comprising video channels at a first resolution and for receiving a second video stream 22 comprising the video channels at a second resolution, the second resolution being lower than the first resolution.
  • the first video stream 21 is also known as a normal video stream and the second video stream 22 is also known as a companion video stream.
  • the apparatus 1 further comprises an output part 12 such as one or two outputs for supplying one or more of the video channels from the first video stream 21 via a coupling 23 and one or more of the video channels from the second video stream 22 via a coupling 24 to the first screen device 31.
  • a video channel 41 from the first video stream 21 and at least a part of a video channel 51-57 from the second video stream 22 are displayed separately from each other.
  • Each reception and each supply may use a wired connection or a wireless connection.
  • the video channel 41 and the video channel 51-57 may be different video channels.
  • the video channel 41 from the first video stream 21 may be displayed in a first part of the screen and the at least part of the video channel 51-57 from the second video stream 22 may be displayed in a second part of the screen.
  • the first part may be larger than the second part.
  • the second part of the screen may be a thumbnail on or near the first part of the screen, the thumbnail having a still content or a moving content.
  • the screen may comprise a first screen for displaying the video channel 41 from the first video stream 21 and a second screen for displaying the at least part (in time, size, movement, location etc.) of the video channel 51-57 from the second video stream 22.
  • the apparatus 1 comprises the input part 11 such as one or two inputs for receiving the first video stream 21 comprising video channels at the first resolution and for receiving the second video stream 22 comprising the video channels at the second resolution.
  • the apparatus 1 further comprises the output part 12 such as one or two outputs for supplying one or more of the video channels from the first video stream 21 via the coupling 23 and one or more of the video channels from the second video stream 22 via the coupling 24 to the first screen device 31 and for supplying one or more of the video channels from the second video stream 22 via a coupling 25 to the second screen device 32.
  • the video channel 41 from the first video stream 21 is displayed, and via a screen of the second screen device 32, the at least part of the video channel 51 from the second video stream 22 is displayed separately from the displaying of the video channel 41 from the first video stream 21.
  • Each reception and each supply may use a wired connection or a wireless connection.
  • the video channel 41 and the video channel 51 may be the same video channel or may be different video channels.
  • the at least part of the video channel 51-57 from the second video stream 22 may be displayed as well as shown for the Fig. 1 and as described for the Fig. 1 including all possibilities described there.
  • a first screen device 31 comprising an apparatus 1.
  • the apparatus 1 comprises the input part 11 such as one or two inputs for receiving the first video stream 21 comprising video channels at the first resolution and for receiving the second video stream 22 comprising the video channels at the second resolution.
  • the apparatus 1 further comprises the output part 12 such as one or two outputs for supplying one or more of the video channels from the first video stream 21 via the coupling 23 and one or more of the video channels from the second video stream 22 via the coupling 24 to the screen of the first screen device 31 and for supplying one or more of the video channels from the second video stream 22 via the coupling 25 to the second screen device 32 not shown here.
  • the video channel 41 from the first video stream 21 is displayed and the at least part of the video channel 52-54 from the second video stream 22 is displayed separately from said displaying of the video channel 41 from the first video stream 21.
  • Each reception and each supply may use a wired connection or a wireless connection.
  • the video channel 41 and the video channel 51 may be the same video channel or may be different video channels.
  • the video channel 41 and the video channel 52-54 may be different video channels as described for the Fig. 1 including all possibilities described there.
  • a system 100 comprising an apparatus 1 and first and second screen devices 31 and 32.
  • a system 100 is for example a package that is to be sold in a shop and may comprise two or three of the units 1, 31 and 32.
  • the first video stream 21 comprises a first number of video channels at a first resolution and the second video stream 22 comprises a second number of video channels at a second and lower resolution.
  • These first and second numbers may be equal or not.
  • one (two, three etc.) of the video channels from the first number of video channels on the one hand and one (two, three etc.) of the video channels from the second number of video channels on the other hand will be similar / identical video channels, apart from their resolution.
  • the entire second video stream 22 is a copy of the entire first video stream 21 or a part thereof, apart from the resolution.
  • the entire first video stream 21 is a copy of the entire second video stream 22 or a part thereof, apart from the resolution.
  • Each video channel could be a video program, a movie, a soap, a live show, a pre-recorded show, a live sports event, a pre-recorded sports event, the news live or not, etc.
  • the video channel 41 from the first video stream 21 is displayed entirely and/or at a large size and/or with full motion
  • the video channel 51-57 from the second video stream 22 is displayed at least partly and/or at a reduced size and/or with non- motion or reduced motion or full motion.
  • More than one video channel 41 from the first video stream 21 may be displayed simultaneously. More than one video channel 51-57 from the second video stream 22 may be displayed simultaneously. Some of the video channels 52-54 from the second video stream 22 may be displayed simultaneously via the first screen device 31 while simultaneously displaying one video channel 51 from the second video stream 22 via the second screen device 32. In this case the at least parts of the video channels 51-57 are either to be copied and to be used in / supplied to the first and second screen devices 31 and 32 or the at least parts of the video channels 51-57 are to be divided into parts that are to be used in / supplied to the first / second screen devices 31 / 32.
  • a first screen device 31 is shown. It differs from the one shown in the Fig. 1 in that, via its screen, a high resolution video channel 41 from the first video stream 21 is displayed at a left upper side and at a relatively large size, and a high resolution video channel 42 from the first video stream 21 is displayed at a right upper side and at a relatively large size, and three low resolution video channels 55-57 from the second video stream 22 are displayed at a central lower side and at a relatively small size.
  • video channels could be considered to be displayed separately from each other in case at least one (displayed) borderline of one of these displayed video channels and at least one (displayed) borderline of another one of these displayed video channels have different sizes and/or different locations and/or different shapes and/or different angles etc.
  • a scaling device for scaling down the normal video stream can be saved.
  • the thumbnail solution and/or the second screen device require a size / mode / format etc. different from the size / mode / format etc. as offered by the companion stream, a scaling device might still be necessary, but it can then be more low cost / simple / smaller etc. than before.
  • the thumbnail solution will be under control of that provider, such that a scaling device can be omitted completely. This will make the set top boxes cheaper.
  • the companion stream may be transmitted wirelessly or through a wire or a fiber to a remote control and to any (mobile) device with a screen. This also covers mobile applications for smart phones and tablets and even other (small portable) digital TVs.
  • normal video streams 21 comprise video channels at higher resolutions and companion video streams 22 comprise the video channels at lower resolutions.
  • screen devices 31, 32 for displaying at least parts of the video channels 51-57 from the companion video streams 22 separately from the video channels from the normal video streams 21, additional applications are possible.
  • First screen devices 31 comprise screens for displaying video channels 41 from the normal video streams 21 and the at least parts of the video channels 51-57 from the companion video streams 22 separately from each other.
  • the at least parts of the video channels 51-57 from the companion video streams 22 may be displayed as thumbnails on or near the displayed video channels 41 from the normal video streams 21.
  • Second screen devices 32 comprise screens for displaying the at least parts of the video channels 51 from the companion video streams 22 separately from the first screen devices 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Selon l'invention, des flux vidéo normaux (21) comprennent des canaux vidéo à des résolutions supérieures et des flux vidéo auxiliaires (22) comprennent les canaux vidéo à des résolutions plus faibles. En appliquant les canaux vidéo provenant de flux vidéo auxiliaires (22) à des dispositifs d'affichage (31, 32) afin d'afficher au moins les parties des canaux vidéo (51 à 57) provenant des flux vidéo auxiliaires (22) séparément des canaux vidéo provenant des flux vidéo normaux (21), des applications supplémentaires sont possibles. Des premiers dispositifs d'affichage (31) comprennent des écrans pour afficher séparément les uns des autres des canaux vidéo (41) provenant des flux vidéo normaux (21) et au moins des parties des canaux vidéo (51 à 57) provenant des flux vidéo auxiliaires (22). Au moins des parties des canaux vidéo (51 à 57) provenant des flux vidéo auxiliaires (22) peuvent être affichées en temps que miniatures sur ou à proximité des canaux vidéo affichés (41) à partir des flux vidéo normaux (21). Des seconds dispositifs d'affichage (32) comprennent des écrans pour afficher au moins les parties des canaux vidéo (51) provenant des flux vidéo auxiliaires (12) séparément des premiers dispositifs d'affichage (31).
PCT/IB2012/051420 2011-03-30 2012-03-26 Applications de flux vidéo normal et auxiliaire WO2012131559A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11160349.4 2011-03-30
EP11160349 2011-03-30

Publications (1)

Publication Number Publication Date
WO2012131559A1 true WO2012131559A1 (fr) 2012-10-04

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PCT/IB2012/051420 WO2012131559A1 (fr) 2011-03-30 2012-03-26 Applications de flux vidéo normal et auxiliaire

Country Status (1)

Country Link
WO (1) WO2012131559A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1755330A1 (fr) 2005-08-16 2007-02-21 Alcatel USA Sourcing, L.P. Procédé et système de lissage du changement de canal dans des systèmes de télévision avec protocole internet
US20070195737A1 (en) * 2006-02-21 2007-08-23 Qualcomm Incorporated Multi-program viewing in a wireless apparatus
WO2009158235A1 (fr) * 2008-06-27 2009-12-30 General Instrument Corporation Procédé et appareil pour la fourniture d’image à faible resolution dans un système de diffusion
WO2010014210A1 (fr) * 2008-07-28 2010-02-04 Thomson Licensing Procédé et appareil de changement de canal rapide utilisant un flux vidéo de canal secondaire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1755330A1 (fr) 2005-08-16 2007-02-21 Alcatel USA Sourcing, L.P. Procédé et système de lissage du changement de canal dans des systèmes de télévision avec protocole internet
US20070195737A1 (en) * 2006-02-21 2007-08-23 Qualcomm Incorporated Multi-program viewing in a wireless apparatus
WO2009158235A1 (fr) * 2008-06-27 2009-12-30 General Instrument Corporation Procédé et appareil pour la fourniture d’image à faible resolution dans un système de diffusion
WO2010014210A1 (fr) * 2008-07-28 2010-02-04 Thomson Licensing Procédé et appareil de changement de canal rapide utilisant un flux vidéo de canal secondaire

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