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Channel switch frame

A super-frame and intra-frame coding technology, applied in the field of video coding and decoding, can solve problems such as reducing compression

Inactive Publication Date: 2008-11-26
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the number of I-frames will allow faster acquisition and resynchronization, but at the cost of reduced compression

Method used

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Embodiment Construction

[0041] The following detailed description is directed to some sample embodiments of the present invention. However, the invention can be embodied in many different ways as defined and covered by the claims. In this description, refer to the drawings in which the same numbers are always used to indicate the same parts.

[0042] Video signals can be characterized based on a series of pictures, frames or fields. As used herein, the term "frame" is a broad term that can cover a frame of a progressive video signal or a field of an interlaced video signal.

[0043] Embodiments include systems and methods for improving processing in encoders and decoders in multimedia transmission systems. The multimedia data may include one or more of motion video, audio, still images, or any other suitable types of audiovisual data. Embodiments include devices and methods for encoding video data. For example, one aspect includes a method of encoding first and second versions of a frame of video data, w...

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Abstract

Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions.

Description

[0001] Claim priority under 35U.S.C.§119 [0002] This patent application claims the priority of four U.S. provisional applications with the following serial numbers: No. 60 / 721,345 entitled "Methods of Video Compression" filed on September 27, 2005; filed on January 20, 2006 No. 60 / 760,484 entitled "Method of Fast Channel Switching"; No. 60 / 789,442 entitled "Channel Switching Frame" filed on April 4, 2006; and No. 60 / 789,442 filed on September 20, 2006 No. ____ of "Channel Switching Frame" (Agent Case No. 050843P3). Each of the above provisional patent applications is assigned to the assignee of the present invention and is expressly incorporated herein by reference. Technical field [0003] The present invention is directed to multimedia signal processing, and more specifically, to video encoding and decoding. Background technique [0004] Multimedia processing systems (e.g., video encoders) can encode multimedia data using encoding methods based on international standards, suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/66H04N7/24H04N19/105H04N19/159H04N19/166H04N19/172H04N19/37H04N19/46H04N21/234H04N21/2343H04N21/2383H04N21/2662H04N21/438H04N21/44H04N21/63
CPCH04N19/00454H04N21/2383H04N21/23439H04N19/00218H04N21/4384H04N21/631H04N19/00242H04N19/00266H04N19/00024H04N21/2662H04N21/44016H04N21/23424H04N19/00545H04N19/105H04N19/159H04N19/172H04N19/46H04N19/37H04N19/166H04N19/103H04N19/51
Inventor 戈登·肯特·沃克维贾雅拉克希米·R·拉韦恩德拉恩陈培松田涛石方斯科特·T·斯瓦泽伊塞伊富拉·哈立德·奥古兹阿米特·罗哈吉希塔拉曼·加纳帕蒂·苏布拉马尼亚帕尼库马尔·巴米迪帕蒂
Owner QUALCOMM INC