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:
Aug. 11, 2026
Filed:
Mar. 13, 2025
Hitachi Channel Solutions, Corp., Tokyo, JP;
Takeshi Kageyama, Tokyo, JP;
HITACHI CHANNEL SOLUTIONS, CORP., Tokyo, JP;
Abstract
To ensure reliable detection of a skimming device over an extensive area inside the card reader, it is currently necessary to install a large number of sensors, which may lead to increased manufacturing cost. A card reader for reading magnetic information while feeding, through a feed path, a card inserted into the card reader, includes: an oscillator configured to emit an ultrasonic wave to the feed path; and a receiver configured to receive the ultrasonic wave emitted from the oscillator. The card reader is configured to detect an object present in the feed path by comparing a first received waveform and a second received waveform with each other, the first received waveform being a waveform received at the receiver, the second received waveform being a previously acquired waveform under normal condition received at the receiver.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile