Invention Grant
US07840403B2 Entropy coding using escape codes to switch between plural code tables
有权
熵编码使用转义码在多个代码表之间切换
- Patent Title: Entropy coding using escape codes to switch between plural code tables
- Patent Title (中): 熵编码使用转义码在多个代码表之间切换
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Application No.: US12127707Application Date: 2008-05-27
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Publication No.: US07840403B2Publication Date: 2010-11-23
- Inventor: Sanjeev Mehrotra , Wei-Ge Chen
- Applicant: Sanjeev Mehrotra , Wei-Ge Chen
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Klarquist Sparkman, LLP
- Main IPC: H03M7/40
- IPC: H03M7/40 ; H03M7/42 ; G10L21/00
Abstract:
An audio encoder performs entropy encoding of audio data. For example, an audio encoder determines whether a first code table in a group of plural code tables contains a code representing a first vector. If it does, the code is used, and otherwise the escape code from the first code table is used and the first vector is encoded using, at least in part, a second code table. An audio decoder performs corresponding entropy decoding.
Public/Granted literature
- US20080228476A1 ENTROPY CODING BY ADAPTING CODING BETWEEN LEVEL AND RUN LENGTH/LEVEL MODES Public/Granted day:2008-09-18
Information query
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