发明名称 |
REPEATED DECODING AND ENCODING IN SUBBAND ENCODER/DECODERS |
摘要 |
An encoding apparatus is provided for encoding a wideband digital signal, comprising an input (1) for receiving the wideband digital signal, a splitter unit (3) for splitting the wideband digital signal into a number of M sub-signals and a formatting unit (7) for assembling digital information including said data reduced sub-signals into a digital output signal having a format suitable for transmission or storage. During a repeated encoding and decoding of a wideband digital signal in a subband encoding/decoding system or a transform encoding/decoding system, signal degradation may occur. In order to avoid this, the apparatus further comprises a variable delay unit (20) coupled between the input (1) and the splitter unit (3), for realizing a delay, the length of which is controlled by a control signal, and a control signal generator unit (24) for generating said control signal.
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申请公布号 |
WO9715984(A1) |
申请公布日期 |
1997.05.01 |
申请号 |
WO1996IB01118 |
申请日期 |
1996.10.18 |
申请人 |
PHILIPS ELECTRONICS N.V.;PHILIPS NORDEN AB |
发明人 |
TEN KATE, WARNER, RUDOLPH, THEOPHILE |
分类号 |
G11B20/10;G06T9/00;H03M7/30;H04B1/66;H04B14/04;(IPC1-7):H04B1/66 |
主分类号 |
G11B20/10 |
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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