A pipelined architecture for adaptive pulse code modulation (ADPCM) is presented. The architecture is developed by the application of relaxed form of look-ahead. The hardware overhead is only the the pipelining latches and is independent of the number of quantizer levels, the predictor order and the pipelining level. The codec latency is smaller than the level of pipelining. Under the assumption of small quantization error, the convergence properties of the pipelined architecture are compared with that of the serial one. Speech and image coding examples are presented to support the conclusions in this paper.
|Original language||English (US)|
|Title of host publication||1992 IEEE International Symposium on Circuits and Systems, ISCAS 1992|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||4|
|State||Published - 1992|
|Event||1992 IEEE International Symposium on Circuits and Systems, ISCAS 1992 - San Diego, United States|
Duration: May 10 1992 → May 13 1992
|Name||Proceedings - IEEE International Symposium on Circuits and Systems|
|Conference||1992 IEEE International Symposium on Circuits and Systems, ISCAS 1992|
|Period||5/10/92 → 5/13/92|
Bibliographical notePublisher Copyright:
© 1992 IEEE.