USE OF TOKEN SWITCH TO INDICATE UNAUTHORIZED MANIPULATION OF A PROTECTED DEVICE
First Claim
1. An apparatus to indicate unauthorized manipulation of at least one protected device enclosed in a housing, the apparatus comprising:
- a structure attached to a first portion of the housing;
a token switch attached to a second portion of the housing, the token switch operably positioned with reference to the structure, the token switch including;
a plunger, anda register programmed with a value, the register communicatively coupled with a processor in a circuit;
the circuit communicatively coupled to drive the device, wherein the structure, the token switch, and the circuit are internal to the housing when the housing is in a closed position,wherein the plunger and the structure are positioned to generate a current when the housing is opened, wherein the programmed value in the register is changed by the generated current, and wherein the processor takes an action responsive to the change in the programmed value.
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Accused Products
Abstract
An apparatus to indicate unauthorized manipulation of at least one protected device enclosed in a housing is provided. The apparatus includes a structure attached to a first portion of the housing and a token switch attached to a second portion of the housing. The token switch is operably positioned with reference to the structure. The token switch includes a plunger, and a register programmed with a value. The register is communicatively coupled with a processor in a circuit. The circuit is communicatively coupled to drive the device. The structure, the token switch, and the circuit are internal to the housing when the housing is in a closed position. The plunger and the structure are positioned to generate a current when the housing is opened. The programmed value in the register is changed by the generated current and the processor takes an action responsive to the change in the programmed value.
931 Citations
20 Claims
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1. An apparatus to indicate unauthorized manipulation of at least one protected device enclosed in a housing, the apparatus comprising:
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a structure attached to a first portion of the housing; a token switch attached to a second portion of the housing, the token switch operably positioned with reference to the structure, the token switch including; a plunger, and a register programmed with a value, the register communicatively coupled with a processor in a circuit; the circuit communicatively coupled to drive the device, wherein the structure, the token switch, and the circuit are internal to the housing when the housing is in a closed position, wherein the plunger and the structure are positioned to generate a current when the housing is opened, wherein the programmed value in the register is changed by the generated current, and wherein the processor takes an action responsive to the change in the programmed value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A piezoelectric token switch including:
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at least one register configured to store a password; a piezoelectric element; and a plunger operably positioned to be in one of a retracted mode, in which the plunger applies a first pressure to the piezoelectric element, and an extended mode, in which the plunger applies a second pressure to the piezoelectric element, the second pressure being less than the first pressure, wherein the password in the at least one register is changed by a current when the plunger moves from the refracted mode to the extended mode. - View Dependent Claims (13, 14)
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15. A method of protecting a device enclosed in a housing, the method comprising:
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positioning a structure on a first portion of the housing; positioning a token switch on a second portion of the housing, the token switch communicatively coupled to a circuit; and closing the housing by mating the first portion to the second portion, wherein the token switch is operable to generate a current to change a value in at least one register in the token switch when the housing is opened. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification