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. 03, 2026
Filed:
Apr. 26, 2024
Alps Alpine Co., Ltd., Tokyo, JP;
Yuki Futagi, Miyagi, JP;
Yukimitsu Yamada, Miyagi, JP;
Daisuke Takai, Tokyo, JP;
Hongyuan Chen, Miyagi, JP;
Takeo Sato, Miyagi, JP;
Akihiro Abe, Miyagi, JP;
ALPS ALPINE CO., LTD., Tokyo, JP;
Abstract
A wireless device includes a transmitter; a receiver; and a control device configured to obtain a first difference of a predetermined physical quantity, in a unit time, of a predetermined-frequency signal transmitted by the transmitter to another device, and calculate a second difference of the predetermined physical quantity, in the unit time, of the predetermined-frequency signal received by the another device, based on a signal received by the receiver; and perform a determination process of comparing the first difference and the second difference to determine legitimacy of the signal received by the receiver.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile