Bitrate control device for controlling bitrate of video data

Details Bitrate control device for controlling bitrate of video data Bitrate control device for controlling bitrate of video data

2008-11-25

2011-10-18

Czekaj, David (Department: 2483)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240260

Reexamination Certificate

active

08040947

ABSTRACT:
A bitrate control device controls bitrate of video data and includes: a setting module that sets, for each frame in the video data, a target code amount to be used in encoding the frame by an encoding module for maintaining a given bitrate; an adjusting module that adjusts the target code amount set by the setting module based on given information; and a managing module that is configured to perform: saving a code amount corresponding to an amount reduced in the target code amount by the adjusting module in a virtual storage management buffer having a given upper limit, when the adjusting module adjusts to reduce the target code amount; and withdrawing a code amount corresponding to an amount increased in the target code amount by the adjusting module from the virtual storage management buffer, when the adjusting module adjusts to increase the target code amount.

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patent: 2007-158944 (2007-06-01), None
Japanese Office Action dated Dec. 8, 2009 and English translation thereof issued in a counterpart Japanese Application No. 2007-305843.

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