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:
Jun. 17, 2025
Filed:
Jan. 26, 2022
Keio University, Tokyo, JP;
Denso Wave Incorporated, Aichi-pref., JP;
Jin Mitsugi, Fujisawa, JP;
Haruki Sakabe, Chita-gun, JP;
KEIO UNIVERSITY, Tokyo, JP;
DENSO WAVE INCORPORATED, Aichi, JP;
Abstract
A passive wireless tag to identify a given command which has been received, even while responding to a wireless tag communication device. In this wireless tag, radio waves serving as a predetermined command are received from a wireless tag communication device via an antenna and an RF switch. Signal components are detected from the received radio waves by the detection circuit. The detected signal components are sampled by the sampling circuit in accordance with the timing when the RF switch is controlled to its ON state by a predetermined control signal. The time interval of the ON state is set to be sufficiently shorter than a transfer cycle of the received radio waves. The control circuit thus identifies the foregoing predetermined command according to the sampling results obtained from the sampling circuit.