Number | Name | Date | Kind |
---|---|---|---|
3937897 | Song | Feb 1976 | |
3949299 | Song | Apr 1976 | |
4437087 | Petr | Mar 1984 | |
4475227 | Belfield | Oct 1984 |
Entry |
---|
"A Low Noise ADPCM-Log PCM Code Converter", 1979 International Symposium on Circuits and Systems, Proceedings, IEEE Catalog No. 79 CH1421-7 CAS, pp. 969-970, Jul. 17-19, 1979, by Hideyo Murakami. |