Full-size optical sensor device having improved driving means

Details Full-size optical sensor device having improved driving means Full-size optical sensor device having improved driving means

1990-07-19

1991-10-22

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358482, 358455, 2502081, 357 24LR, H04N 5335, H04N 314

Patent

active

050600710

ABSTRACT:
A full-size optical sensor device includes a sensor array having a plurality of photoelectric conversion elements. The sensor array is divided into a plurality of groups, each of them having a plurality of the photoelectric conversion elements. The full-size optical sensor also includes a driving circuit for selectively driving the photoelectric conversion elements of the sensor array. The driving circuit includes a shift register and a selector for selecting one of the driven photoelectric conversion elements in accordance with an external control signal and a shifting operation of the shift register. The selector includes a plurality of circuit sets, each of the circuit sets being connected between one of the bits of the shift register and one of the groups having photoelectric conversion elements. Each of the circuit sets selects one of the driven photoelectric conversion elements in accordance with the external control signal and a signal from one of the bits of the shift register.

REFERENCES:
patent: 4644411 (1987-02-01), Sato et al.
patent: 4673821 (1987-06-01), Morita
patent: 4691242 (1987-09-01), Kato
patent: 4827146 (1989-05-01), Ogawa et al.
patent: 4876585 (1988-10-01), Ozawa

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