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:
Jan. 07, 2020
Filed:
Jul. 17, 2018
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Richard Scott Johnson, Boise, ID (US);
Pawan Gilhotra, Newark, CA (US);
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
An imaging device may have an array of image sensor pixels and image readout circuitry coupled to the array of image sensor pixels. Predictive pre-charge circuitry may be coupled to the array of image sensor pixels and the image readout circuitry. The predictive pre-charge circuitry and the image readout circuitry may perform correlated double sampling operations during charge readout, comparing the charge generated by the array of image pixels to a known reset value. The predictive pre-charge circuitry may pre-charge output lines from the array of image pixels, thereby reducing the time needed for the circuitry to read out the charge after being reset. The output lines may be pre-charged prior to reading out the charge of a row of image sensor pixels based on a voltage associated with the charge generated by at least one previous row of image sensor pixels of the array of image sensor pixels.