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. 02, 2022

Filed:

Feb. 08, 2021
Applicant:

Japan Display Inc., Tokyo, JP;

Inventor:

Chung-Kai Chen, San Jose, CA (US);

Assignee:

JAPAN DISPLAY INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0412 (2013.01); G06F 3/04166 (2019.05); G06F 3/04182 (2019.05);
Abstract

A touch detecting system includes a detection panel that generates a detection signal based on a received transmitter signal and an object placed in proximity to a detection panel. The detection signal includes information about the object. A receiver circuit receives the detection signal and includes a control circuit that determines, each time a transmitter start signal becomes active, a delay time to add when generating an adaptive control signal. The transmitter start signal indicates a start of operation of the transmitter signal. A mixer circuit receives the detection signal and the adaptive control signal, and outputs a demodulated detection signal based on the detection signal and the adaptive control signal. An output circuit receives the demodulated detection signal and outputs an output detection signal that includes the information about the object placed in proximity to the detection panel.


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