Invention Grant
- Patent Title: Variable length coding (VLC) method and device
- Patent Title (中): 可变长度编码(VLC)方法和装置
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Application No.: US12339817Application Date: 2008-12-19
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Publication No.: US08306347B2Publication Date: 2012-11-06
- Inventor: Gisle Bjontegaard , Arild Fuldseth
- Applicant: Gisle Bjontegaard , Arild Fuldseth
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: NO20076589 20071220; NO20082612 20080611
- Main IPC: G06K9/36
- IPC: G06K9/36

Abstract:
A method for representing video data related to a macroblock of a video image in a coding procedure wherein certain, video data or combinations of video data is represented in predefined events associated with indexed positions in a Variable Length Code (VLC) table including codes assigned to each indexed position, including: determining, with a processor, that a first event among said predefined events occurs during the coding procedure; coding, with the processor, the first event with a code assigned to a position x in the VLC table being associated with the first event, the VLC table being stored in a memory device; determining, with the processor, whether x>0, wherein 0 denotes a position at a top of the VLC table; and rearranging, with the processor, the VLC table by associating a second event currently associated with a position x−1 with the position x, and associating the first event with the position x−1.
Public/Granted literature
- US20090161974A1 VARIABLE LENGTH CODING (VLC) METHOD AND DEVICE Public/Granted day:2009-06-25
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