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.

Date of Patent:
Aug. 30, 2022

Filed:

Mar. 07, 2021
Applicant:

Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;

Inventors:

Mohamed Elsayed, San Diego, CA (US);

Mohit Kumar, San Diego, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/353 (2011.01); H04N 5/3745 (2011.01); H04N 5/357 (2011.01);
U.S. Cl.
CPC ...
H04N 5/353 (2013.01); H04N 5/37455 (2013.01); H04N 5/3577 (2013.01);
Abstract

Techniques are described for controlling operation of a pixel conversion ADC in a manner that enforces strict timing and synchronization of ramp and clock signaling. Synchronizing techniques can be applied to generate a corrected ramp start signal based on synchronizing a received ramp start signal to an input clocking signal, and to generate a controller clock signal based on synchronizing an input clocking signal to the corrected ramp start signal. The corrected ramp start signal and the controller clock signal can be used to control generation of a ramp enable signal for controlling timing of pixel ramp voltage generation digital pixel conversion counting, and to control generation of an output clocking signal used by the digital pixel conversion counting.


Find Patent Forward Citations

Loading…