Solid-state camera device having a function for eliminating high

Details Solid-state camera device having a function for eliminating high Solid-state camera device having a function for eliminating high

1990-06-15

1993-03-02

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821327, 358167, H04N 3335

Patent

active

051914247

ABSTRACT:
A solid-state camera device of a horizontal charge-coupled device (HCCD) type includes a large number of CCDs arranged in a matrix to store signal charges, many rows of vertical transfer CCDs for successively reading the signal charge, a dual-line type HCCD for reading the signal charge transferred from the vertical transfer CCDs in synchronism with a horizontal transfer clock signal, an output circuit for outputting a first signal charge as the signal charge for one line transferred from the horizontal transfer CCDs in synchronism with the horizontal transfer clock signal, a band pass filter for selecting a second signal charge including noise having a band of around a frequency of the horizontal transfer clock signal from the first signal charge, a delay memory for delaying the period of the second signal charge for a required period in synchronism with the horizontal transfer clock signal, and a deduction circuit for deducting the second signal charge from the first signal charge provided by the output circuit to obtain an output signal charge not including the second signal charge.

REFERENCES:
patent: 4079423 (1979-03-01), Diehl
patent: 4175268 (1979-11-01), Ochi et al.
patent: 4189751 (1980-02-01), Nagumo
patent: 4413284 (1983-11-01), Izumita et al.
patent: 4928158 (1990-05-01), Kimata
patent: 4931743 (1990-06-01), Fukuda et al.
E. Oda, et al., "A 1920(H)X1035(V) Pixel High-Definition CCD Image Sensor", IEEE Journal of Solid State Circuits, vol. 24, No. 3, Jun. 1989.
National convention Record of the Institute of Television Engineers of Japan, 1989, pp. 31-32.

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