The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 1994
Filed:
Nov. 05, 1991
Seiichi Kawamoto, Kanagawa, JP;
Maki Sato, Kanagawa, JP;
Tadakuni Narabu, Kanagawa, JP;
Hisanori Miura, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention is directed to a linear image sensor, the electric charge storage time of which can be varied. According to an embodiment of the present invention, there is provided a linear image sensor in which a read-out gate and a charge-transfer gate are disposed on one side of an image sensor array, and a drain gate and a drain region are disposed on the other side of the image sensor array, whereby the electric charge storage time in which a signal charge is transferred by the charge-transfer register after the signal charge is read out by the application of a read-out signal to the read-out gate and the next read-out signal is applied to the read-out gate can be varied by varying the application timing of the drain gate signal. When the linear image sensor is applied to a facsimile, the output level can be adjusted and the light and shade can be controlled by varying the electric charge accumulation time in response to the change of light intensity of a light source or by the change of scan speed of the linear image sensor.