Title: Method of driving image sensor
Application Number: 98120864 Application Date: 1998.09.30
Publication Number: 1213862 Publication Date: 1999.04.14
Approval Pub. Date: 2006.03.22 Granted Pub. Date: 2006.03.22
International Classifi-cation: H01L25/00;H01L27/14;H04N5/217
Applicant(s) Name: Canon K. K. Address:
Inventor(s) Name: Hiraku Kozuka
Attorney & Agent: wang maohua
Abstract:
    There is provided a method of driving an image sensor which can remove FPN resulting from inter-chip variations without requiring any dark correction. A semiconductor photosensor chip has a plurality of sensor modules mounted on a mounting substrate, and a semiconductor device in which at least an N signal input buffer circuit for receiving N signals, an S signal input buffer circuit for receiving S signals, a differential circuit for calculating any difference between the outputs from the N and S signal input buffer circuits, and a voltage clamping circuit for clamping the output from the differential circuit are formed on a single semiconductor substrate.
Time: 12
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