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:
Aug. 08, 2023
Filed:
Apr. 13, 2022
Omnivision Technologies, Inc., Santa Clara, CA (US);
Hiroaki Ebihara, San Jose, CA (US);
Zhenfu Tian, San Jose, CA (US);
Tao Sun, San Jose, CA (US);
Liang Zuo, Milpitas, CA (US);
Yu-Shen Yang, San Jose, CA (US);
Satoshi Sakurai, Cupertino, CA (US);
Rui Wang, San Jose, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A ramp buffer circuit includes an input device having an input coupled to receive a ramp signal. A bias current source is coupled to an output of the input device. The input device and the bias current source are coupled between a power line and ground. An assist current source is coupled between the output of the input device and ground. The assist current source is configured to conduct an assist current from the output of the input device to ground only during a ramp event generated in the ramp signal.