Number | Name | Date | Kind |
---|---|---|---|
4008390 | Runge | Feb 1977 | |
4009385 | Sell | Feb 1977 | |
4369525 | Breton | Jan 1983 | |
4399566 | Roullet | Aug 1983 | |
4504976 | Beaudet | Mar 1985 | |
4612671 | Giles | Sep 1986 | |
4621282 | Ahern | Nov 1986 |
Number | Date | Country |
---|---|---|
0009446 | Jan 1983 | JPX |
0229542 | Nov 1985 | JPX |
0078626 | Apr 1988 | JPX |
Entry |
---|
Smith, "Laser Level Control Circuit for High Bit Rate Systems Using a Slope Detector", Electronic Letters, 11-23-78, vol. 14, #24. |