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:
May. 22, 2012
Filed:
Dec. 08, 2008
Song Xue, San Jose, CA (US);
Song Xue, San Jose, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
An analog multiplexer is configured to multiplex a plurality of input analog signal channels into a single output analog signal channel. The analog multiplexer comprises a plurality of input sampling circuits associated with respective ones of the input analog signal channels and an amplifier having an input controllably connectable in turn to each of the input sampling circuits. The analog multiplexer is further configured to connect at least a given one of the input analog signal channels to a sampling element of its corresponding input sampling circuit at a predetermined time prior to connecting the sampling element of that input sampling circuit to the input of the amplifier. The predetermined time is less than a full clock cycle of a sampling clock of the amplifier. The analog multiplexer may be implemented in readout circuitry coupled to a pixel array in an image sensor.