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SCALABLE ENCODING DEVICE AND SCALABLE ENCODING MET

2023-01-26 来源:伴沃教育
专利内容由知识产权出版社提供

专利名称:SCALABLE ENCODING DEVICE AND

SCALABLE ENCODING METHOD

发明人:Takuya Kawashima,Hiroyuki Ehara,Koji

Yoshida

申请号:US12293302申请日:20070315

公开号:US20090070107A1公开日:20090312

专利附图:

摘要:Provided is a scalable encoding device capable of improving quality of adecoded signal without increasing an encoding amount and compensating data with a

sufficient quality upon data loss. In the scalable encoding device, an extension layer bitdistribution calculation unit () calculates a bit distribution of a quality improving encodingdata and compensation encoding data in the extension layer according to an audio modeof the input signal. An extension layer encoding unit () generates quality improvingencoding data according to the specified number of bits. A compensation informationencoding unit () extracts a part of core layer encoding data and makes it as compensationencoding data for the core layer. An extension layer encoded data generation unit ()multiplexes the extension layer bit distribution information, the compensation encodingdata, and the quality improving encoding data so as to obtain extension layer encodingdata.

申请人:Takuya Kawashima,Hiroyuki Ehara,Koji Yoshida

地址:Ishikawa JP,Kanagawa JP,Kanagawa JP

国籍:JP,JP,JP

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