CA2677520A1 - Improved data structure and methods for providing an interactive program guide - Google Patents

Improved data structure and methods for providing an interactive program guide Download PDF

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Publication number
CA2677520A1
CA2677520A1 CA002677520A CA2677520A CA2677520A1 CA 2677520 A1 CA2677520 A1 CA 2677520A1 CA 002677520 A CA002677520 A CA 002677520A CA 2677520 A CA2677520 A CA 2677520A CA 2677520 A1 CA2677520 A1 CA 2677520A1
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Canada
Prior art keywords
stream
picture
video
pictures
receive
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Granted
Application number
CA002677520A
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French (fr)
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CA2677520C (en
Inventor
Donald F. Gordon
Sadik Bayrakeri
Joseph R. Wild
Jeremy S. Edmonds
Edward A. Ludvig
John P. Comito
Eugene Gershtein
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Adeia Media Holdings LLC
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Diva Systems Corp
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Application filed by Diva Systems Corp filed Critical Diva Systems Corp
Priority to CA2775625A priority Critical patent/CA2775625C/en
Publication of CA2677520A1 publication Critical patent/CA2677520A1/en
Application granted granted Critical
Publication of CA2677520C publication Critical patent/CA2677520C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
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    • HELECTRICITY
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • H04N19/577Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
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    • H04N21/4316Generation 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
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    • H04N21/4344Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
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    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
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    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44016Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
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    • H04N21/65Transmission of management data between client and server
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    • H04N5/00Details of television systems
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    • H04N5/445Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

Abstract

An apparatus, system, and method are described for isolating frames in a video stream. A first picture start code may be obtained from a video data stream. Data from the video stream may be accepted after obtaining the first picture frame start code until obtaining a second picture start code.
I--picture data of the accepted data may be output. In some embodiments, a frame isolator may be used to obtain the first picture start code from the video data stream, accept the data from the video stream and/or output the I-picture data.

Claims (28)

1. An apparatus, comprising:

a first compositor configured to receive a first guide region image signal;

a second compositor configured to receive a second guide region image signal;

the first compositor and the second compositor configured to receive an image region image signal;

the first compositor configured to provide a first video output stream, the first video output stream being a composition of the image region image signal and the first guide region image signal;

the second compositor configured to provide a second video output stream, the second video output stream being a composition of the image region image signal and the second guide region image signal;

an audio delay configured to receive an audio signal and provide a delayed audio signal packet alignment with the first video output stream and the second video output stream;

a data processor configured to receive an input data stream and to provide an output data stream;

a first real-time video encoder configured to receive the first video output stream and a first packet identification assignment, and to provide in response thereto a first compressed video bitstream;
a second real-time video encoder configured to receive the second video output stream and a second packet identification assignment, and to provide in response thereto a second compressed video bitstream;

a real-time audio encoder configured to receive the delayed audio signal and to provide an encoded audio stream;

a first frame isolator configured to receive the first compressed video bit steam and to isolate pictures therefrom for providing a first picture bitstream associated with the first guide region image signal and a second picture bitstream associated with the image region image signal;

a second frame isolator configured to receive the second compressed video bitstream and to produce a third picture bitstream associated with second guide region image signal;

a first packetizer configured to receive the first picture bitstream and to provide a first packetized stream in response;

a second packetizer configured to receive the second picture bitstream and to provide a second packetized stream in response;

a third packetizer configured to receive the third picture bitstream and to provide a third packetized stream in response;

a fourth packetizer configured to receive the encoded audio stream and to provide a packetized audio stream in response;

a fifth packetizer configured to receive the data output stream and to provide a packetized data stream in response; and a multiplexer configured to receive and multiplex the first packetized stream, the second packetized stream, the third packetized stream, the packetized audio stream and the packetized data stream to provide a transport stream.
2. The apparatus of claim 1 wherein the first compressed video bitstream is Moving Pictures Expert Group compliant.
3. The apparatus of claim 2 wherein the first compressed video bitstream is associated with a group of pictures structure.
4. The apparatus of claim 3 wherein the group of pictures structure comprises an I-picture followed by ten B-pictures with a P-picture separating each group of two contiguous B-pictures of the ten B-pictures.
5. The apparatus of claim 3 wherein the group of pictures is a closed group of pictures structure.
6. The apparatus of claim 3 wherein the group of pictures is an open group of pictures structure.
7. The apparatus of claim 3 wherein the second compressed video bitstream is associated with the group of pictures structure.
8. The apparatus of claim 3 wherein the second compressed video bitstream is associated with another group of pictures structure different from the group of pictures structure.
9. The apparatus of claim 1 wherein the first frame isolator is configured to identify which access units are associated with respective I-pictures, B-pictures and P-pictures.
10. The apparatus of claim 9 wherein each of the access units is a coded representation of a video frame.
11. The apparatus of claim 1 wherein the first picture bitstream comprises only I-picture access units.
12. The apparatus of claim 11 wherein the second picture bitstream comprises only P-picture access units and B-picture access units.
13. The apparatus of claim 12 wherein the third picture bitstream comprises only I-picture access units.
14. The apparatus of claim 1 wherein an image associated with the image region image signal is overlaid a first guide image associated with the first guide region image signal.
15. The apparatus of claim 14 wherein the image is moving imagery, and the first guide image is a still imagery.
16. The apparatus of claim 1 further comprising:

a first buffer configured to receive the first packetized stream and to buffer the first packetized stream for providing to the multiplexer;

a second buffer configured to receive the second packetized stream and to buffer the second packetized stream for providing to the multiplexer; and a third buffer configured to receive the third packetized stream and to buffer the third packetized stream for providing to the multiplexer.
17. The apparatus of claim 16 wherein the transport stream is a Moving Pictures Expert Group (MPEG) compliant transport stream.
18. The apparatus of claim 17 wherein the MPEG compliant transport stream represents at least a portion of an interactive electronic program guide.
19. A method for frame isolation from a video data stream provided to a frame isolator, comprising:

obtaining a first picture start code from the video data stream;

accepting data from the video data stream after obtaining the first picture frame start code until obtaining a second picture start code; and outputting I-picture data of the data accepted from the frame isolator.
20. The method of claim 19 further comprising determining whether to process non-I-picture data.
21. The method of claim 20 further comprising if the step of determining is to process the non-I-picture data, providing the non-I-picture data to a packetizer.
22. The method of claim 19 further comprising if the step of determining is not to process the non-I-picture data, discarding the non-I-picture data.
23. The method of claim 19 wherein the first picture start code is a sequence header or group of pictures start code for an I-picture.
24. The method of claim 19 wherein the data accepted comprises a sequence header and an I-picture start code.
25. The method of claim 24 wherein the data accepted comprises an I-picture.
26. A method for processing a group of pictures (GOP) data structure in a transport stream having multiplexed video streams, comprising:

providing a packet identification, the packet identification associated with a video stream of the multiplexed video streams;

selecting the video stream in response to the packet identification (PID), the video stream having only intra-coded information;

decoding the video stream;

decoding another video stream having only predictive-coded information; and generating a decoded video stream from the video stream and the another video stream.
27. The method of claim 26 wherein the step of selecting comprises demultiplexing the multiplexed video streams to identify the PID.
28. The method of claim 27 wherein the step of generating comprises concatenating the intra-coded information with the predictive-coded information to provide a predefined group of pictures structure.
CA2677520A 1999-04-15 2000-04-14 Improved data structure and methods for providing an interactive program guide Expired - Lifetime CA2677520C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2775625A CA2775625C (en) 1999-04-15 2000-04-14 Improved data structure and methods for providing an interactive program guide

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/293,535 US6584153B1 (en) 1998-07-23 1999-04-15 Data structure and methods for providing an interactive program guide
US09/293,535 1999-04-15
CA002370266A CA2370266C (en) 1999-04-15 2000-04-14 Improved data structure and methods for providing an interactive program guide

Related Parent Applications (1)

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Related Child Applications (1)

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CA2677520A1 true CA2677520A1 (en) 2000-10-26
CA2677520C CA2677520C (en) 2012-07-10

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CA2775625A Expired - Lifetime CA2775625C (en) 1999-04-15 2000-04-14 Improved data structure and methods for providing an interactive program guide
CA002370266A Expired - Lifetime CA2370266C (en) 1999-04-15 2000-04-14 Improved data structure and methods for providing an interactive program guide

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US (2) US6584153B1 (en)
AU (1) AU4352600A (en)
CA (3) CA2677520C (en)
GB (1) GB2363539B (en)
WO (1) WO2000064170A1 (en)

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US7260147B2 (en) 2007-08-21
AU4352600A (en) 2000-11-02
US20030208759A1 (en) 2003-11-06
CA2370266C (en) 2010-01-19
WO2000064170A9 (en) 2002-06-27
GB2363539B (en) 2003-07-02
GB0124725D0 (en) 2001-12-05
US6584153B1 (en) 2003-06-24
WO2000064170A1 (en) 2000-10-26
CA2775625C (en) 2015-07-21
GB2363539A (en) 2001-12-19
CA2370266A1 (en) 2000-10-26
CA2775625A1 (en) 2000-10-26

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