Circuit for controlling shutter speed in accordance with the mot

Details Circuit for controlling shutter speed in accordance with the mot Circuit for controlling shutter speed in accordance with the mot

1992-02-03

1993-09-07

Mancuso, Joseph

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821313, H04N 514, H04N 5335

Patent

active

052434320

ABSTRACT:
An automatic shutter speed control circuit for a video camera that includes a pulse generating circuit, a pulse processing circuit and a signal outputting circuit. The pulse generating circuit includes a signal detecting circuit, a first switch, a shaping circuit, a switching control circuit, a second switch, a pulse generating circuit and a combining circuit. The pulse processing circuit includes a signal processing circuit, an error correcting circuit and a third switch. The signal outputting circuit includes a fourth switch and a control signal generating circuit. The pulse generating circuit generates a single pulse train per field representative of the object's speed. The output circuit generates a control signal based on the pulse train to control shutter speed.

REFERENCES:
patent: 4218119 (1980-08-01), Schickedanz
patent: 4264161 (1981-04-01), Hosoe et al.
patent: 4396950 (1983-08-01), Roth
patent: 4531156 (1985-07-01), Nishizawa et al.
patent: 4689686 (1987-08-01), Hashimoto et al.
patent: 5060007 (1991-10-01), Egawa

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