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:
Sep. 07, 2021
Filed:
Dec. 21, 2018
1004335 Ontario Inc. Carrying on Business As a D Metro, Ottawa, CA;
Robert Donald McCulloch, Ottawa, CA;
Guy Michael Amyon Farquharson Duxbury, Ottawa, CA;
Albert M. David, Manotick, CA;
Gueorgui Pavlov, Ottawa, CA;
Abstract
A capacitive touch sensor comprises a plurality of electrodes on a substrate, and a position of a finger touching the sensor is determined by monitoring output signal changes caused by changes in capacitance caused by the present of the finger over or near the electrodes. The disclosure provides a capacitive touch sensor apparatus comprising a substrate and a plurality of touch sensor electrodes arranged on the substrate. Each of the electrodes comprises a respective primary electrode strip and a respective one or more electrode strip branches extending from the primary electrode strip.