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:
Jan. 07, 2020

Filed:

May. 11, 2018
Applicant:

Samsung Display Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Inventors:

Gaurav Malhotra, Cupertino, CA (US);

Kenneth Hu, Cupertino, CA (US);

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/044 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06F 3/044 (2013.01); G06K 9/00067 (2013.01);
Abstract

A system and method for digital differential detection includes a capacitive sensor having a first node and a second node, a transmitter configured to transmit an input signal through the first node and the second node, and a receiver coupled to the first node and the second node. The receiver is configured to receive a first modified input signal from the first node and a second modified input signal from the second node. The receiver includes first and second analog-to-digital converters configured to convert the first modified input signal to a first digital signal and the second modified input signal to a second digital signal. The receiver also includes a first differencing circuit configured to calculate a first difference between the first digital signal and a second digital signal and a decision circuit configured to output a result according to the first difference.


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