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. 16, 2004
Filed:
Oct. 04, 2002
Applicant:
Inventors:
Robert Henderson, Edinburgh, GB;
Purcel Matthew, Edinburgh, GB;
Jonathan Ephriam David Hurwitz, Edinburgh, GB;
Assignee:
STMicroelectronics Ltd., Buckinghamshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 3/1062 ;
U.S. Cl.
CPC ...
H01L 3/1062 ;
Abstract
An active pixel array has the signal output of each pixel connected to a first column conductor, and a reset switch connected to a second column conductor. The first and second column conductors are connected to a read-reset amplifier. The read-reset amplifier operates in a first mode in which a reset voltage is applied to the second column line, and in a second mode in which pixel output signals are buffered from the first column line. The read-reset amplifier can also operate as a comparator forming part of an ADC circuit.