Invention Grant
- Patent Title: Method and apparatus for VLC encoding in a video encoding system
- Patent Title (中): 视频编码系统中VLC编码的方法和装置
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Application No.: US12206654Application Date: 2008-09-08
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Publication No.: US08363725B2Publication Date: 2013-01-29
- Inventor: Kensuke Miyagi
- Applicant: Kensuke Miyagi
- Applicant Address: JP Minato-Ku, Tokyo US NJ Park Ridge
- Assignee: Sony Corporation,Sony Electronics Inc.
- Current Assignee: Sony Corporation,Sony Electronics Inc.
- Current Assignee Address: JP Minato-Ku, Tokyo US NJ Park Ridge
- Agency: Moser Taboada
- Main IPC: H04N11/04
- IPC: H04N11/04

Abstract:
Method and apparatus for variable length code (VLC) encoding is described. In some examples, a symbol of frequency transform values having a run and a level is VLC encoded. An address is generated, at a processor, for a lookup table (LUT) in a memory based on the run and the level, the LUT storing VLC entries for all possible combinations of run values ranging from minimum to maximum runs and level values ranging from minimum to maximum levels, each of the VLC entries including a flag indicative of an escape mode. A VLC entry is read from the LUT using the address. A VLC code and bit length are obtained from the VLC entry if the flag in the VLC entry is a first value. A fixed length VLC code is generated from an escape code, the run, and the level if the flag in the VLC entry is a second value.
Public/Granted literature
- US20100061457A1 METHOD AND APPARATUS FOR VLC ENCODING IN A VIDEO ENCODING SYSTEM Public/Granted day:2010-03-11
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