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:
Jun. 09, 2020

Filed:

Feb. 08, 2019
Applicant:

Synaptics Incorporated, San Jose, CA (US);

Inventors:

Guozhong Shen, San Jose, CA (US);

Yongqian Tang, San Jose, CA (US);

Ozan Erdogan, San Jose, CA (US);

Assignee:

Synaptics Incorporated, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G06K 9/0004 (2013.01); G09G 3/20 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/063 (2013.01); G09G 2360/14 (2013.01);
Abstract

An input device includes sensing pixels, each sensing pixel including a photodiode, and a gate driver circuit controlling operation of the sensing pixels. The gate driver circuit includes a set of cascaded gate driver units. Each of the cascaded gate driver units is associated with a subset of the sensing pixels, controlling an operation of the subset of the sensing pixels. The set of cascaded gate driver units output, during a reset phase of the input device, a global reset gate control signal to the sensing pixels in response to a clock signal. Each of the cascaded gate driver units sequentially output, during an operating phase of the input device, an operating gate control signal to the associated subset of the sensing pixels.


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