Image sensor array with two stage transfer

Details Image sensor array with two stage transfer Image sensor array with two stage transfer

1986-07-18

1988-04-12

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821327, H04N 314

Patent

active

047378549

ABSTRACT:
A linear image sensor array with a row of photodiodes and a transfer circuit for each photodiode, the circuit having a pair of transistors for two stage transfer of the image signal charge from the photodiode to the gate of one transistor of a two transistor source follower, a transistor for applying a bias charge to the photodiode, a multiplexing transistor for connecting the source follower output to an output line, a reset transistor for resetting the source follower, and clock signals for operating the transfer circuits in succession to serially output image signals to the output line.

REFERENCES:
patent: 4242599 (1980-12-01), Suzuki
patent: 4274113 (1981-06-01), Ohba et al.
patent: 4338633 (1982-07-01), Malm
patent: 4407010 (1983-09-01), Baji et al.
The Bell System Technical Journal, "A Fundamental Comparison of Incomplete Charge Transfer in Charge Transfer Devices"; C. N. Berglund et al., Feb. 1973, vol. 52, No. 2, pp. 147-182.
"A Lensless Raster Input Scanner", J. C. Tandon et al; Xerox Disclosure Journal; vol. 6, No. 5, Sep./Oct. 1981, pp. 287-289.

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