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Appts. and method for recovery of lost/damaged data in bitstream of data based on compatibility

A bit-streaming, compatibility technique used in the field of error recovery

Inactive Publication Date: 2003-05-07
SONY ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since errors in the encoded signal are more prominent upon subsequent decoding, efficient compression algorithms result in compound error propagation
This error multiplication results in a degraded video image that is easily perceived by the user

Method used

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  • Appts. and method for recovery of lost/damaged data in bitstream of data based on compatibility
  • Appts. and method for recovery of lost/damaged data in bitstream of data based on compatibility
  • Appts. and method for recovery of lost/damaged data in bitstream of data based on compatibility

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Embodiment Construction

[0047] The present invention provides a method for encoding and scheduling signal streams to provide strong error recovery. In the following description, for the purpose of explanation, many details are set forth in order to provide a complete understanding of the present invention. However, it is obvious to those skilled in the art that these specific details are not required to practice the present invention. In other examples, well-known electronic structures and circuits are shown in block diagrams so as not to make the present invention difficult to understand in vain.

[0048] The signal processing method and structure are described from the viewpoint of an embodiment in which the signal is a video signal. However, the methods and devices described herein are intended to be applicable to various types of other digital bit streams including audio signals and data, where each signal is composed of multiple signal symbols. Moreover, embodiments of the processing described herei...

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PUM

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Abstract

A system and method for receiving damage data in a bitstream of encoded data is disclosed. A plurality of candidate decodings (1710) for a plurality of blocks are generated. A measure is generated for each block based upon at least an image portion of the candidate decodings (1715). Compatibility is determined between adjacent blocks (2460) of the plurality of blocks. A candidate decoding is selected based upon the measure and the compatibility of adjacent blocks (2465). In one embodiment, this is used in the transmission of video signals over a potentially lossy communications channel.

Description

[0001] This application is a continuation of the U.S. patent application entitled "Source Coding toProvide for Robust Error Recovery During TransmissionLosses" filed on January 30, 1998, with serial number 09 / 016,083; this application was filed on January 2, 1998 The serial number of the application titled "Image-to-Block Mapping to Provide for Robust Error Recovery During Transmission Losses" is 09 / 002,547, and the application titled "Source Coding to Provide for Robust Error Recovery During Transmission Losses" submitted on January 2, 1998 The serial number of 09 / 002,470, the application titled "Multiple Block Based Recovery Method to Provide for Robust Error Recovery During Transmission Losses" submitted on January 2, 1998, continues to apply for the part of the serial number 09 / 002,553; these applications have serial numbers The application was submitted on October 23, 1997 entitled "Image-to-Block Mapping to Provide for Robust Error Recovery During Transmission Losses" with ser...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T9/00H03M13/01H04N5/21H04N5/44H04N7/26H04N7/46H04N19/89H04N19/895
CPCH04N19/00757H04N19/00933H04N19/00981H04N19/00939H04N19/00927H04N5/4401H04N19/00903H04N5/21H04N19/59H04N19/85H04N19/88H04N19/89H04N19/895H04N19/98H04N21/426
Inventor T·康多J·J·卡里格Y·福吉莫里S·戈萨尔
Owner SONY ELECTRONICS INC