Signal accumulating time control method and apparatus for a sign

Details Signal accumulating time control method and apparatus for a sign Signal accumulating time control method and apparatus for a sign

1985-02-25

1986-12-30

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250204, G01J 120

Patent

active

046330755

ABSTRACT:
Disclosed is a signal accumulating time control method for a signal accumulating type radiation sensing device which produces an electrical signal corresponding to the amount of incident radiation and accumulates the same. According to the improvement of the present invention, the accumulating time is controlled by successive approximation at different intervals when there happens a situation in which the accumulating time must be changed greatly.

REFERENCES:
patent: 4329577 (1982-05-01), Asano et al.
patent: 4377742 (1983-03-01), Kawabata et al.
patent: 4384199 (1983-05-01), Ogino et al.

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