Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1986-03-17
1988-04-19
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
354408, G01J 120, G03B 300
Patent
active
047391570
ABSTRACT:
A correlation detecting method in which in order to detect the correlation between a pair of electrical signal trains which should effect a correlation operation, the operation is effected while the relative position of the signal trains is shifted and during the operation, the signal levels of at least the opposite ends of each signal train are reduced relative to the signals at a central position of the signal train, thereby mitigating the correlation error attributable to the signals near the ends of the signal trains.
REFERENCES:
patent: 4333007 (1982-06-01), Langlais et al.
patent: 4336450 (1982-06-01), Utagawa et al.
patent: 4500189 (1985-02-01), Aoki
patent: 4573784 (1986-03-01), Suzuki
patent: 4602153 (1986-07-01), Suzuki
patent: 4647174 (1987-03-01), Tsunekawa et al.
Akashi Akira
Ishizaki Akira
Ohmura Hiroshi
Ohtaka Keiji
Suda Yasuo
Canon Kabushiki Kaisha
Messinger Michael
Nelms David C.
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