Invention Grant
US08094049B2 Digital signal coding method and apparatus, digital signal decoding apparatus, digital signal arithmetic coding method and digital signal arithmetic decoding method
有权
数字信号编码方法和装置，数字信号解码装置，数字信号算术编码方法和数字信号算术解码方法
- Patent Title: Digital signal coding method and apparatus, digital signal decoding apparatus, digital signal arithmetic coding method and digital signal arithmetic decoding method
- Patent Title (中): 数字信号编码方法和装置，数字信号解码装置，数字信号算术编码方法和数字信号算术解码方法
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Application No.: US12985181Application Date: 2011-01-05
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Publication No.: US08094049B2Publication Date: 2012-01-10
- Inventor: Shunichi Sekiguchi , Yoshihisa Yamada , Kohtaro Asai
- Applicant: Shunichi Sekiguchi , Yoshihisa Yamada , Kohtaro Asai
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2002-124114 20020425
- Main IPC: H03M7/00
- IPC: H03M7/00
Abstract:
A digital signal coding apparatus and method for making a compression coding by dividing a digital signal in predetermined transmission units are disclosed. The apparatus includes an arithmetic coding unit, a binarization unit, a probability of occurrence generation unit, and a coding unit. The arithmetic coding unit compresses the digital signal of the transmission unit by arithmetic coding. The binarization unit generates a binarization rule determined based on a type of coding data, and the probability of occurrence generation unit provides the probability of occurrence of symbol generated by the binarization rule. The coding unit performs arithmetic coding of the digital signal of the transmission unit based on the generated probability of occurrence.
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