Alarm systems, wireless alarm devices, and article security methods
First Claim
1. A wireless alarm device comprising:
- a housing configured to couple with an article to be secured;
an antenna circuit coupled with the housing and configured to generate a reference signal corresponding to wireless communications with a base communication device of an alarm system;
alarm circuitry coupled with the housing and configured to generate a human perceptible alarm;
processing circuitry coupled with the antenna circuit and the alarm circuitry and configured to discriminate reference signals resulting from wireless communications of the base communication device from other signals resulting from electromagnetic energy other than the wireless communications of the base communication device, and wherein the processing circuitry is configured to control the alarm circuitry to generate the human perceptible alarm responsive to identification of the reference signals resulting from the wireless communications of the base communication device; and
wherein the processing circuitry is configured to detect an absence of spurious electromagnetic energy and to control the alarm circuitry to generate the human perceptible alarm responsive to the detection of the absence.
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Accused Products
Abstract
Alarm systems, wireless alarm devices, and article security methods are described according to some aspects of the disclosure. In one aspect, an alarm system includes a base communication device, a remote communication device configured to communicate with the base communication device, wherein the remote communication device is adapted to be associated with an article to be secured and wherein the remote communication device comprises alarm circuitry, and wherein the remote communication device is configured to generate a reference signal comprising a plurality of identifiable components corresponding to communications intermediate the base communication device and the remote communication device and to control the alarm circuitry to generate a human perceptible alarm responsive to detection of the presence of the plurality of identifiable components in the reference signal.
54 Citations
25 Claims
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1. A wireless alarm device comprising:
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a housing configured to couple with an article to be secured; an antenna circuit coupled with the housing and configured to generate a reference signal corresponding to wireless communications with a base communication device of an alarm system; alarm circuitry coupled with the housing and configured to generate a human perceptible alarm; processing circuitry coupled with the antenna circuit and the alarm circuitry and configured to discriminate reference signals resulting from wireless communications of the base communication device from other signals resulting from electromagnetic energy other than the wireless communications of the base communication device, and wherein the processing circuitry is configured to control the alarm circuitry to generate the human perceptible alarm responsive to identification of the reference signals resulting from the wireless communications of the base communication device; and wherein the processing circuitry is configured to detect an absence of spurious electromagnetic energy and to control the alarm circuitry to generate the human perceptible alarm responsive to the detection of the absence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An article security method comprising:
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associating a remote communication device with an article to be secured; emitting a wireless signal within a secured area using a base communication device of an alarm system; moving the remote communication device and the associated article into the secured area; using the remote communication device, comparing a reference signal corresponding to electromagnetic energy received by the remote communication device while located in the secured area with a predefined pattern; using the remote communication device, identifying the electromagnetic energy received by the remote communication device while located within the secured area as corresponding to the wireless signal emitted using the base communication device responsive to the comparing; and using the remote communication device, generating a human perceptible alarm responsive to the identifying. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An article security method comprising:
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receiving electromagnetic energy using a remote communication device; using the remote communication device, generating a reference signal comprising a plurality of pulses responsive to the receiving the electromagnetic energy; providing a plurality of different values for a parameter; selecting one of the values; monitoring the reference signal for the presence of a number of pulses having the selected one of the values of the parameter defined before the receiving; detecting the presence of the number of pulses having the selected one of the values of the parameter within the reference signal; and generating a human perceptible alarm responsive to the detecting and to indicate the presence of the remote communication device and an article associated with the remote communication device within a secured area. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification