DocumentCode
2989168
Title
A CCITT standard 32 kbps ADPCM LSI codec
Author
Nishitani, Takao ; Kuroda, Ischiro ; Satoh, Masao ; Katoh, Tadaharu ; Fukuda, Reiichi ; Aoki, Yasushi
Author_Institution
NEC Corporation, Kawasaki, Japan
Volume
10
fYear
1985
fDate
31138
Firstpage
1425
Lastpage
1428
Abstract
An LSI ADPCM codec, which is based on the CCITT standard 32 kbps algorithm, has been developed. The LSI chip has been designed as a software controllable signal processor whose architecture is optimized for the CCITT algorithm. A reconfigurable pipeline multiplier-normalizer-accumulator circuit is effectively utilized for realizing complex ADPCM specifications. The LSI chip, implemented by 2.5 µ CMOS technology, dissipates only 90 milliwatts of power.
Keywords
Algorithm design and analysis; CMOS technology; Code standards; Codecs; Large scale integration; Process control; Signal design; Signal processing algorithms; Software design; Standards development;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '85.
Type
conf
DOI
10.1109/ICASSP.1985.1168091
Filename
1168091
Link To Document