Card reader
AssigneeHitachi Channel Solutions, Corp.
InventorTakeshi Kageyama
Life of this patent
Estimating the term…
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.
Claims13
A card reader for reading magnetic information while feeding, through a feed path, a card inserted into the card reader, the card reader comprising:
- a first end including an opening;
- a second end opposite the first end;
- a feed path connecting the first end to the second end and configured to guide the card through the card reader;
- an oscillator configured to emit an ultrasonic wave to the feed path and located along the feed path at either the first end or the second end;
- and
- a receiver configured to receive the ultrasonic wave emitted from the oscillator and located along the feed path at either the first end or the second end and opposite the end where the oscillator is located,
- wherein 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.
Dependencies are inferred from the claim text.