Point of sale terminal having enhanced security
First Claim
1. A data entry device comprising:
- a housing formed of at least two housing portions;
data entry circuitry located within said housing;
at least one case-open switch assembly operative to sense when said housing is opened; and
tamper indication circuitry operative to receive an input from said at least one case-open switch assembly and to provide an output indication of possible tampering with said data entry circuitry located within said housing,said at least one case-open switch assembly including;
at least one arrangement of electrical contacts arranged on a base surface, said at least one arrangement including a central contact and at least one contact spaced from and at least partially surrounding said central contact; and
at least one element, having a conductive contact surface including a central contact engagement portion and at least one contact engagement portion spaced from and at least partially surrounding said central contact engagement portion, which contacts said central contact and at least one of said at least one contact spaced from and at least partially surrounding said central contact and defines a short circuit between said central contact and said at least one of said at least one contact only when said housing is closed.
6 Assignments
0 Petitions
Accused Products
Abstract
A case-open switch assembly for a data entry device including a housing, the case-open switch assembly including at least one arrangement of electrical contacts arranged on a base surface, the at least one arrangement including a central contact and at least one contact spaced from and at least partially surrounding the central contact and at least one element, having a conductive contact surface including a central contact engagement portion and at least one contact engagement portion spaced from and at least partially surrounding the central contact engagement portion, which contacts the central contact and the at least one contact spaced from and at least partially surrounding the central contact and defines a short circuit between the central contact and at least one of the at least one contact when in a closed operative orientation.
91 Citations
20 Claims
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1. A data entry device comprising:
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a housing formed of at least two housing portions; data entry circuitry located within said housing; at least one case-open switch assembly operative to sense when said housing is opened; and tamper indication circuitry operative to receive an input from said at least one case-open switch assembly and to provide an output indication of possible tampering with said data entry circuitry located within said housing, said at least one case-open switch assembly including; at least one arrangement of electrical contacts arranged on a base surface, said at least one arrangement including a central contact and at least one contact spaced from and at least partially surrounding said central contact; and at least one element, having a conductive contact surface including a central contact engagement portion and at least one contact engagement portion spaced from and at least partially surrounding said central contact engagement portion, which contacts said central contact and at least one of said at least one contact spaced from and at least partially surrounding said central contact and defines a short circuit between said central contact and said at least one of said at least one contact only when said housing is closed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A case-open switch assembly for a data entry device including a housing, the case-open switch assembly comprising:
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at least one arrangement of electrical contacts arranged on a base surface, said at least one arrangement including a central contact and at least one contact spaced from and at least partially surrounding said central contact; and at least one element, having a conductive contact surface including a central contact engagement portion and at least one contact engagement portion spaced from and at least partially surrounding said central contact engagement portion, which contacts said central contact and at least one of said at least one contact spaced from and at least partially surrounding said central contact and defines a short circuit between said central contact and said at least one of said at least one contact when in a closed operative orientation. - View Dependent Claims (17, 18, 19, 20)
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Specification