Point of sale terminal having enhanced security
First Claim
1. Tamper indication apparatus comprising:
- at least one switch assembly including;
an arrangement of electrical contacts arranged on a base surface, said arrangement of electrical contacts including an outer ring contact, at least one intermediate ring contact and a central contact, at least one of said outer ring contact and said at least one intermediate ring contact being an anti-tampering contact; and
a resiliently deformable conductive element comprising;
an at least partially continuous circumferential flange fixed in electrical contact with said at least one intermediate ring contact;
a circumferential portion having a cross sectional configuration which includes two mutually spaced arches; and
a contact portion disposed, in a first operative orientation, when no tampering exists, touching said central contact and, in a second operative orientation, when tampering exists, at a distance from said central contact; and
tamper indication circuitry operative to receive an input from said at least one switch assembly and to provide an output indication of possible tampering.
6 Assignments
0 Petitions
Accused Products
Abstract
A data entry device including a housing formed of at least two portions, data entry circuitry located within the housing, at least one case-open switch assembly operative to sense when the housing is opened and tamper indication circuitry operative to receive an input from the at least one case-open switch assembly and to provide an output indication of possible tampering with the data entry circuitry located within the housing. The at least one case-open switch assembly includes an arrangement of electrical contacts arranged on a base surface and a resiliently deformable conductive element, which defines a short circuit between at least some of the arrangement of electrical contacts only when the housing is closed.
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Citations
9 Claims
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1. Tamper indication apparatus comprising:
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at least one switch assembly including; an arrangement of electrical contacts arranged on a base surface, said arrangement of electrical contacts including an outer ring contact, at least one intermediate ring contact and a central contact, at least one of said outer ring contact and said at least one intermediate ring contact being an anti-tampering contact; and a resiliently deformable conductive element comprising; an at least partially continuous circumferential flange fixed in electrical contact with said at least one intermediate ring contact; a circumferential portion having a cross sectional configuration which includes two mutually spaced arches; and a contact portion disposed, in a first operative orientation, when no tampering exists, touching said central contact and, in a second operative orientation, when tampering exists, at a distance from said central contact; and tamper indication circuitry operative to receive an input from said at least one switch assembly and to provide an output indication of possible tampering. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification