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. 17, 2018
Filed:
May. 23, 2016
Omron Corporation, Kyoto-shi, Kyoto, JP;
Tomonori Ariyoshi, Kusatsu, JP;
Hiroaki Motoshima, Takatsuki, JP;
OMRON Corporation, Kyoto-shi, JP;
Abstract
There has been a demand for a technique of expanding a communicable range as much as possible without increasing the time required for communication between an RF tag and a communication device. A communication device includes: a terminal electrically connected with an antenna; a transmitter electrically connected with the terminal and configured to generate a first radio signal superimposed with a predetermined command signal and transmit the first radio signal from the antenna; an amplifier electrically connected with the terminal and configured to receive from the antenna a second radio signal generated by an RF tag receiving the first radio signal; a detector configured to detect intensity of the signal having been amplified by the amplifier; and a suppressor configured to suppress the intensity of the amplified signal to be inputted into the detector such that the intensity does not exceed a predetermined upper limit.