Lateral overflow gate driver circuit for linear CCD sensor

Details Lateral overflow gate driver circuit for linear CCD sensor Lateral overflow gate driver circuit for linear CCD sensor

1992-06-01

1995-06-20

Ip, Paul

Facsimile and static presentation processing

Facsimile

Picture signal generator

358486, 327111, 348301, 348308, H04N 718, H03K 501

Patent

active

054265150

ABSTRACT:
Unwanted artifacts can occur in the output of a linear CCD sensor, caused by switching the exposure gate control voltage from a high level to a low lever to begin exposure while the device is reading out. A novel gate driver circuit for driving a lateral overflow gate of the CCD sensor provides a constant current path between the gate electrode and a low potential source. When a connection to a high potential source is opened to begin exposure, energy stored in a capacitance associated with the gate flows through the constant current path. This causes the gate voltage to move slowly and smoothly to the low potential and thus eliminates the unwanted artifacts.

REFERENCES:
patent: 2965770 (1960-12-01), Lewinter
patent: 3364365 (1968-01-01), Eisenhauer
patent: 3621281 (1971-11-01), Hagen
patent: 3863065 (1975-01-01), Kosonocky et al.
patent: 3866067 (1975-02-01), Amelio
patent: 3896485 (1975-07-01), Early
patent: 3931463 (1976-01-01), Levine
patent: 3931465 (1976-01-01), Levine
patent: 3944816 (1976-03-01), Harada
patent: 3953733 (1976-04-01), Levine
patent: 3965374 (1976-06-01), Peterson et al.
patent: 4301477 (1981-11-01), Takemoto et al.
patent: 4471228 (1984-09-01), Nishizawa
patent: 4472744 (1984-09-01), Inoue et al.
patent: 4503480 (1985-03-01), Pickard et al.
patent: 4549215 (1985-10-01), Levine
patent: 4636907 (1987-01-01), Howell
patent: 4731665 (1988-03-01), Hashimoto et al.
patent: 4805025 (1989-02-01), Akiyama et al.
patent: 4868646 (1989-09-01), Tsuji
patent: 4879470 (1989-11-01), Sugawa et al.
patent: 4912537 (1990-03-01), Boyd
patent: 5047660 (1991-09-01), Kannegundla et al.
patent: 5157500 (1992-10-01), Gusmano

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