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:
Nov. 26, 1985
Filed:
Mar. 22, 1984
Richard H Tuhro, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Sensor correction circuit for maintaining offset voltages in the shift registers of a multiple channel image sensor substantially equal having a pair of control gates to permit sampling the current offset voltages in the shift registers of each channel, a pair of capacitors for storing the offset voltage samples in each channel; a clock for actuating the control gates in preset timed relation between scan lines to sample and store the current shift register offset voltages on the capacitors; and an amplifier for amplifying any difference between the offset voltage samples held by the capacitors to provide an adjusted potential for balancing any differences between the shift registers.