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:
Mar. 14, 1995
Filed:
Oct. 14, 1992
Sony Corporation, Tokyo, JP;
Abstract
The present invention is directed to a light source switching type color image scanner in which a color signal can be read out at high speed by reducing a read-out time. A red light source (3), a green light source (4) and a blue light source (5) which can be selectively switched are disposed under an original document holder (1) on which an original document (2) is held. Further, there are disposed a mirror (7) and a lens (8) which are used to focus a reflected image of the original document (2) onto a CCD linear image sensor (6). The CCD linear image sensor (6) includes a shutter gate (12) and a shutter drain (13) which are used to reset signal charges of remaining lights from the respective light sources (3), (4) and (5). The reset of a signal charge begins before a next color light source is energized.