发明名称 |
DATA COMPRESSION AND EXPANSION OF AN AUDIO SIGNAL |
摘要 |
A data compression apparatus is disclosed for data compressing an audio signal. The data compression apparatus comprises an input terminal (1) for receiving the audio signal, a 1-bit A/D converter (4) for A/D converting the audio signal so as to obtain a bitstream signal, a lossless coder (10) for carrying out a lossless data compression step on the bitstream signal so as to obtain a data compressed bitstream signal, and an output terminal (14) for supplying the data compressed bitstream signal. Further, a recording apparatus and a transmitter apparatus comprising the data compression apparatus are disclosed. In addition, a data expansion apparatus for data expanding the data compressed bitstream signal supplied by the data compression apparatus is disclosed, as well as a reproducing apparatus and a receiver apparatus comprising the data expansion apparatus.
|
申请公布号 |
WO9816014(A1) |
申请公布日期 |
1998.04.16 |
申请号 |
WO1997IB01156 |
申请日期 |
1997.09.26 |
申请人 |
PHILIPS ELECTRONICS N.V.;PHILIPS NORDEN AB |
发明人 |
BRUEKERS, ALPHONS, ANTONIUS, MARIA, LAMBERTUS;OOMEN, ARNOLDUS, WERNER, JOHANNES;VAN DER VLEUTEN, RENATUS, JOSEPHUS |
分类号 |
H03M1/00;G10L19/00;G11B20/00;H03M3/02;H03M7/30;H03M7/40;(IPC1-7):H03M7/30 |
主分类号 |
H03M1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|