Image reading apparatus capable of rapid transition from a stand

Details Image reading apparatus capable of rapid transition from a stand Image reading apparatus capable of rapid transition from a stand

1995-12-11

1998-05-05

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358483, H04N 104

Patent

active

057483400

ABSTRACT:
In an image reading apparatus arranged such that the supply of a drive clock signal CCD-CLK to a CCD solid-state imaging device is stopped during a standby period when an image is not read, during the standby period a high-level control signal CCDEN is generated by a clock-generating circuit, and is imparted to the CCD solid-state imaging device through an OR circuit and an inverter 14 so as to hold the drive clock signal CCD-CLK at a low level, thereby holding an output signal level of the CCD solid-state imaging device at a d.c. output bias level.

REFERENCES:
patent: 4197557 (1980-04-01), Tuma et al.
patent: 4473839 (1984-09-01), Noda
patent: 4589025 (1986-05-01), Monahan et al.
patent: 5018012 (1991-05-01), Tsuji
patent: 5329312 (1994-07-01), Boisvert et al.

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