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US 4,733,302 AGranted
Image sensor or an image sensing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTakao Kinoshita, Shinji Sakai, Akira Suga, Akihiko Tojo
Life of this patent
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Abstract
An image sensing apparatus comprises: a photo detecting unit for converting an optical image to electrical information; and unnecessary charge transfer unit, formed in the end portion of the photo detecting unit, for transferring the unnecessary charges; a charge removing unit provided at the final end of the unnecessary charge transfer unit; and a drive circuit for driving the unnecessary charge transfer unit synchronously with the transfer of the whole electrical information in the photo detecting unit.
Claims9
Image pickup apparatus comprising:
- (a) image pickup means for converting an optical image into an electrical signal, the image pickup means including:
- (i) first charge transfer means for transferring one part of the electrical signal in a first direction;
- and
- (ii) second charge transfer means for transferring another part of the electrical signal into a charge drain in a second direction different from said first direction;
- (b) control means for controlling said first and second charge transfer means to simultaneously drive said first and second charge transfer means;
- and
- (c) encoder means for producing a television signal by using the signal transferred by said first charge transfer means in said image pickup means.
4 more elements
Image pickup apparatus comprising:
- (a) image pickup means provided with a photodetector unit which includes a first charge transfer device arranged in a column;
- (b) read-out means for sequentially reading out electrical signals transferred by said first charge transfer device in said photoconductor unit row by row;
- (c) charge drain means disposed at the opposite side to said read-out means in said photodetector unit;
- (d) a second charge transfer device disposed in a column direction at the edge of said photodetector unit, for transferring the electrical signal toward said charge drain means;
- (e) control means for simultaneously driving said first and second charge transfer devices;
- and
- (f) means for producing a television signal by using the signal transferred through said first charge transfer device.
4 more elements
Dependencies are inferred from the claim text.