Number | Date | Country | Kind |
---|---|---|---|
3-300486 | Nov 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4891643 | Mitchell et al. | Jan 1990 | |
4933883 | Pennebaker et al. | Jun 1990 | |
4973961 | Chamzas et al. | Nov 1990 | |
4989000 | Chevion et al. | Jan 1991 | |
5059976 | Ono et al. | Oct 1991 |
Number | Date | Country |
---|---|---|
0205667 | Dec 1986 | EPX |
258812 | Aug 1987 | JPX |
344116 | Feb 1991 | JPX |
Entry |
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Mitchell et al., "Software Implementations of the Q-Coder", IBM Journal of Research and Development, vol. 32, No. 6, Nov. 1988, pp. 753-774. |