Number | Date | Country | Kind |
---|---|---|---|
3840630 | Dec 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4470079 | Tsuruta | Sep 1984 | |
4587580 | Takayama et al. | May 1986 | |
4656539 | Sugiki et al. | Apr 1987 | |
4675759 | Strand | Jun 1987 | |
4816930 | Kubo et al. | Mar 1989 | |
4868692 | Nakase et al. | Jan 1989 | |
4984104 | Takahashi et al. | Jan 1991 | |
5055952 | Noh | Oct 1991 |
Number | Date | Country |
---|---|---|
0117753 | Sep 1989 | EPX |
61-265764 | Nov 1986 | JPX |
Entry |
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IEEE Transactions on Consumer Electronics, vol. CE32, #3, (Aug. 1986) pp. 426.431. |