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:
Nov. 14, 2023
Filed:
Feb. 04, 2022
Aito Bv, Amsterdam, NL;
Jukka Riihiaho, Vantaa, FI;
AITO BV, Amsterdam, NL;
Abstract
It is an object to provide a device for piezoelectric sensing. According to an embodiment, a device comprises a touch surface, a plurality of piezoelectric sensors, wherein the plurality of piezoelectric sensors includes at least a first subset of piezoelectric sensors and a second subset of piezoelectric sensors, and a wakeup circuitry. The wakeup circuitry may be configured to: obtain the electrical signal from each piezoelectric sensor in the plurality of piezoelectric sensors; assign a positive sign to electrical signals obtained from the first subset of piezoelectric sensors and assign a negative sign to electrical signals obtained from the second subset of piezoelectric sensors; produce a sum signal by summing the obtained electrical signals according to the assigned signs; compare the sum signal to a preconfigured condition; and in response to the sum signal fulfilling the preconfigured condition, provide a wakeup signal.