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:
Oct. 22, 1991
Filed:
Jul. 19, 1990
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A full-size optical sensor device includes a sensor array having a plurality of photoelectric conversion elements. The sensor array is divided into a plurality of groups, each of them having a plurality of the photoelectric conversion elements. The full-size optical sensor also includes a driving circuit for selectively driving the photoelectric conversion elements of the sensor array. The driving circuit includes a shift register and a selector for selecting one of the driven photoelectric conversion elements in accordance with an external control signal and a shifting operation of the shift register. The selector includes a plurality of circuit sets, each of the circuit sets being connected between one of the bits of the shift register and one of the groups having photoelectric conversion elements. Each of the circuit sets selects one of the driven photoelectric conversion elements in accordance with the external control signal and a signal from one of the bits of the shift register.