Number | Name | Date | Kind |
---|---|---|---|
3800188 | Wilke | Mar 1974 | |
3971974 | Ichiyanagi | Jul 1976 | |
4079432 | Godfrey | Mar 1978 | |
4259625 | Hatakeyama et al. | Mar 1981 | |
4346371 | Ida | Aug 1982 |
Number | Date | Country |
---|---|---|
143192 | Aug 1980 | DEX |
162148 | Dec 1979 | JPX |
76927 | Jun 1980 | JPX |
2042191 | Sep 1980 | GBX |
Entry |
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IBM Technical Disclosure Bulletin, "Digital Velocity Servomechanism", vol. 14, No. 3, Aug. 1971. |