Method of driving image sensor and image sensor

Details Method of driving image sensor and image sensor Method of driving image sensor and image sensor

1993-07-09

1996-01-16

Razavi, Michael T.

Television

Camera, system and detail

Solid-state image sensor

348300, 348294, 348308, H04N 5335

Patent

active

054852064

ABSTRACT:
A signal is read from photodiodes periodically with a predetermined period and applied to the input terminal. The input signal is amplified by an amplifier circuit and switched by a signal switching circuit to be alternately input to two offset cancel circuits through their respective switching elements. The period with which the switching elements are periodically turned on is set to be virtually double the period in the outputting of the signal from the photodiodes. The periods of time at which the switching elements are alternately turned on are shifted virtually half the period from each other. Further, output signals from the offset cancel circuits are adapted to be alternately output through a multiplexer.

REFERENCES:
patent: 4336557 (1982-06-01), Koch
patent: 4382187 (1983-03-01), Fralen et al.
patent: 4809075 (1989-02-01), Akimoto et al.
patent: 4974093 (1990-11-01), Murayama et al.
patent: 5268567 (1993-12-01), Bowlby, Jr. et al.
patent: 5268764 (1993-12-01), Kihara et al.

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