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:
Jul. 08, 2025
Filed:
Aug. 29, 2022
Assa Abloy Ab, Stockholm, SE;
Bernt Arbegard, Altura, PT;
Robin Dahlbäck, Stockholm, SE;
ASSA ABLOY AB, Stockholm, SE;
Abstract
It is provided it is provided a keypad comprising: a voltage bus configured to distribute power in the keypad; and a plurality of keys: a plurality of row key connections; and a plurality of column key connections: A wake-up signal causes a microcontroller to transition from a low-power state to an active state such that the microcontroller can detect which one of the plurality of keys was actuated. Each key is connected to a single row key connection and a single column key connection. Each row key connection and/or each column key connection is provided with a respective port circuit that is configured to connect the key connection with keys of the keypad when the wake-up signal is activated. Each port circuit comprises a respective port switch that is turned off in the low-power state to disconnect the column key connections/row key connections from the keys of the keypad.