Title:
MPEG画像ストリームのデコード装置およびデコード方法
Document Type and Number:
Japanese Patent JP4337244
Kind Code:
B2
Abstract:
When a digital broadcast receiver selects a channel and thereby changes an MPEG picture stream, a video decoder starts a decoding operation in response to an instruction to start decoding. When a predictive coded picture includes an intra slice and an intra macroblock, the video decoder decodes the intra slice and the intra macroblock of the predictive coded picture without waiting for an intra picture to be decoded. When a macroblock to be referred to is already decoded, the video decoder further decodes a non-intra slice and a non-intra macroblock of the predictive coded picture by using a decoding result of the referred macroblock.
Thus, when changing the channel, for example, it is possible to quickly obtain output picture data, shorten interruption of the pictures, and check a picture of the next channel in a short time.
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Inventors:
Kei Katayama
Application Number:
JP2000224367A
Publication Date:
September 30, 2009
Filing Date:
July 25, 2000
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N19/114; G06T9/00; H03M7/40; H04N7/24; H04N19/159; H04N19/177; H04N19/189; H04N19/423; H04N19/44; H04N19/50; H04N19/503; H04N19/513; H04N19/577; H04N19/61; H04N19/625; H04N19/91; H04N21/234; H04N21/438; H04N21/44
Domestic Patent References:
| JP8163575A | ||||
| JP6350964A | ||||
| JP114442A | ||||
| JP7154795A | ||||
| JP200032472A | ||||
| JP6311501A | ||||
| JP879710A | ||||
| JP998430A | ||||
| JP9163378A | ||||
| JP10136369A |
Attorney, Agent or Firm:
Kunio Yamaguchi