发明授权
US06631213B1 Methods and devices for coding and decoding digital signals, and systems using them
失效
用于对数字信号进行编码和解码的方法和装置，以及使用它们的系统
- 专利标题： Methods and devices for coding and decoding digital signals, and systems using them
- 专利标题（中）： 用于对数字信号进行编码和解码的方法和装置，以及使用它们的系统
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申请号： US09539700申请日： 2000-03-31
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公开(公告)号： US06631213B1公开(公告)日： 2003-10-07
- 发明人: Isabelle Amonou , Félix Henry
- 申请人： Isabelle Amonou , Félix Henry
- 优先权： FR9904403 19990408
- 主分类号： G06K936
- IPC分类号： G06K936
摘要：
In order to code a digital signal, a simplified version of the digital signal is determined, containing only some of the information contained in the digital signal. The simplified version is coded by means of a predetermined single coding technique. This simplified version is subtracted from the digital signal, so as to obtain a residual signal. From each block of the simplified version, there is selected, for each corresponding block of the residual signal, a coding technique amongst a predetermined number M of coding techniques Ci, where i is an integer between 1 and M. Each block of the residual signal is coded by means of the previously selected coding technique.
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