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:
Jun. 29, 2004
Filed:
Oct. 02, 2002
Kazuhisa Koizumi, Ibaraki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
It is an object of the present invention to provide wiring pattern conditions for obtaining a high-quality analog image output signal in a contact image sensor which operates at a high speed (5 MHz or more). In order to achieve this object, a CIS substrate has the following arrangement. Signal lines &phgr;M, &phgr;RS, and &phgr;TR which transmit signals to CCD chips ( ) are digital signal lines Dn, and signal lines from the CCD chips ( ) to the inputs of emitter followers and output lines from the emitter followers are analog signal lines An. In FIG. , letting A be an analog signal line from the CCD, and D be a digital signal line, the analog signal line A and digital signal line D are formed on separate layers.