发明名称 |
VERFAHREN UND VORRICHTUNG ZUM KODIEREN UND DEKODIEREN DIGITALER VIDEODATEN |
摘要 |
The bit rate control goals for applications using storage devices with the capability to process a variable bit rate data stream differ from the constant bit rate case. Therefore the encoder control strategy is adapted to this situation. For the first e.g. 80% of the total playing time an average bit rate is produced which is e.g. 95% only of the normal average bit rate. For the remaining 20% of the playing time the value for the desired average bit rate ascends to e.g. 150% of the normal value. During the first 80% the virtual buffer size is increased by a factor of e.g. 100 whereas during the last 20% the virtual buffer size descends to the normal value. Thereby an increased decoding quality can be achieved during e.g. 80% of the playing time. In the remaining playing time there is nearly no loss in the normal decoding quality. |
申请公布号 |
AT191116(T) |
申请公布日期 |
2000.04.15 |
申请号 |
AT19970906112T |
申请日期 |
1997.02.22 |
申请人 |
DEUTSCHE THOMSON-BRANDT GMBH |
发明人 |
BLAWAT, MEINOLF;HERPEL, CARSTEN |
分类号 |
H04N7/26;H04N7/32;H04N7/50;(IPC1-7):H04N7/50 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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