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US 9,176,100 B2Granted
Foreign body detecting
AssigneeNCR Corporation
InventorJim Henderson
Life of this patent
Estimating the term…
Abstract
A self-service terminal has a fascia 1. A transmitter 18 sends a chirped ultrasonic pulse across a region R of the fascia. The pulse interacts with the region R and the region R responds by emitting an output. A receiver 20 receives the output and produces an electrical signal corresponding to the output. A frequency analysing module 24 transforms the electrical signal into a frequency response.
Claims15
A self-service terminal comprising:
- a fascia;
- a transmitter sending a chirped ultrasonic pulse across a region of the fascia;
- wherein the pulse interacts with the region;
- a receiver receiving the pulse after the pulse has interacted with the region and produces an electrical output corresponding to the received pulse;
- and,
- an analysing module converting the electrical output to a frequency domain, the analyzing module comparing the frequesncy domain converted electrical output to a baseline frequency response.
3 more elements
A method of detecting foreign bodies at a self-service terminal, the method comprising:
- sending a chirped ultrasonic pulse across a region of a fascia of the terminal so that the pulse interacts with the region, wherein the region is associated with a magnetic card slot of the self- service terminal;
- receiving the pulse after the pulse has interacted with the region;
- producing an electrical output corresponding to the received pulse;
- and,
- analysing the electrical output by converting the electrical output to a frequency domain and comparing the frequency domain converted electrical output to a baseline frequency response.
2 more elements
Dependencies are inferred from the claim text.