Dynamically bypassed alarm system
First Claim
1. An alarm system comprising:
- one or more motion detectors for providing a violation signal indicative of a potential alarm in response to sensing motion within a space;
a transmitter for transmitting, in response to said violation signal, an inquiry message within said space;
a portable device including a transmitter and a receiver for receiving said inquiry message and, in response thereto, transmitting said authorization code;
signal processing means for comparing said authorization code with one or more predetermined codes, and, if said authorization code is identical with one said predetermined code, providing a dynamic bypass signal, said signal processing means responsive to said violation signal for causing an alarm indication signal in response to the presence of said violation signal concurrently with the absence of said dynamic bypass signal, but not providing said alarm indication signal in response to the presence of said violation signal concurrently with said dynamic bypass signal; and
a control panel having keys for entering a personal identification number and selecting a function, one function being setting said predetermined code into said portable device for transmission thereafter as said authorization code; and
whereinsaid signal processing means comprises means responsive to said code setting function for transmitting said predetermined code; and
said portable device, in response to receipt of said predetermined code, sets said authorization code equal to said predetermined code.
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Accused Products
Abstract
An alarm system having motion violation sensors (motion or other presence detectors and door and window switches) can have a potential alarm condition be determined to not be a violation of the secured space in response to an authorization code transmitted by a personal device worn by a user. In one embodiment, the personal device transmits an authorization code periodically to bypass sensors in that room for an interval slightly longer than the period between transmissions. In another embodiment, a request for authorization is transmitted in response to a potential alarm condition, in response to which the device transmits the code. In one embodiment, a single authorization code is changed each time the alarm is disarmed, thereby to prevent recordation and subsequent use thereof. Another embodiment responds to plural authorization codes, such as ID numbers of authorized personnel.
110 Citations
17 Claims
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1. An alarm system comprising:
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one or more motion detectors for providing a violation signal indicative of a potential alarm in response to sensing motion within a space; a transmitter for transmitting, in response to said violation signal, an inquiry message within said space; a portable device including a transmitter and a receiver for receiving said inquiry message and, in response thereto, transmitting said authorization code; signal processing means for comparing said authorization code with one or more predetermined codes, and, if said authorization code is identical with one said predetermined code, providing a dynamic bypass signal, said signal processing means responsive to said violation signal for causing an alarm indication signal in response to the presence of said violation signal concurrently with the absence of said dynamic bypass signal, but not providing said alarm indication signal in response to the presence of said violation signal concurrently with said dynamic bypass signal; and a control panel having keys for entering a personal identification number and selecting a function, one function being setting said predetermined code into said portable device for transmission thereafter as said authorization code; and
whereinsaid signal processing means comprises means responsive to said code setting function for transmitting said predetermined code; and said portable device, in response to receipt of said predetermined code, sets said authorization code equal to said predetermined code. - View Dependent Claims (2, 3, 4)
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5. An alarm system comprising:
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one or more motion detectors for providing a violation signal indicative of a potential alarm in response to sensing motion within a space; a portable device including a transmitter for transmitting an authorization code; and signal processing means for comparing said authorization code with one or more predetermined codes, at least one said predetermined code being changed each time that said alarm is disarmed, and, if said authorization code is identical with one said predetermined code, providing a dynamic bypass signal, said signal processing means responsive to said violation signal for causing an alarm indication signal in response to the presence of said violation signal concurrently with the absence of said dynamic bypass signal, but not providing said alarm indication signal in response to the presence of said violation signal concurrently with said dynamic bypass signal. - View Dependent Claims (6, 7)
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8. An alarm system comprising:
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one or more motion detectors for providing a violation signal indicative of a potential alarm in response to sensing motion within a space; a portable device including a transmitter for transmitting an authorization code on a periodic basis; and signal processing means for comparing said authorization code with one or more predetermined codes, and, if said authorization code is identical with one said predetermined code, providing a dynamic bypass signal, in response to each receipt of said authorization code that is identical with said predetermined code, for a period of time which is just slightly in excess of the period between successive transmissions of said authorization code, said signal processing means responsive to said violation signal for causing an alarm indication signal in response to the presence of said violation signal concurrently with the absence of said dynamic bypass signal, but not providing said alarm indication signal in response to the presence of said violation signal concurrently with said dynamic bypass signal. - View Dependent Claims (9, 10, 11)
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12. A method of dynamically bypassing portions of a security alarm system in a secured space having one or more motion detectors, comprising:
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providing an authorized user of the secured space with a device to be borne by the user, said device transmitting an authorization code periodically; comparing said authorization code with one or more predetermined codes; and if said authorization code is identical with one said predetermined code, bypassing at least one said motion detector in the vicinity of said device for a short period of time which is slightly in excess of the period of time between transmissions of said authorization code. - View Dependent Claims (13, 14)
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15. A method of dynamically bypassing portions of a security alarm system in a secured space having one or more motion detectors, said alarm system having a control panel with keys for numerical entry and for function selection, comprising:
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providing an authorized user of the secured space with a device to be borne by the user, said device transmitting an authorization code; entering one or more predetermined codes into said control panel with said keys of said panel; comparing said authorization code with said one or more predetermined codes; and if said authorization code is identical with one said predetermined code, bypassing at least one said motion detector in the vicinity of said device for at least a short period of time.
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16. A method of dynamically bypassing portions of a security alarm system in a secured space having one or more motion detectors, comprising:
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providing an authorized user of the secured space with a device to be borne by the user, said device having keys for numerical entry, entering an authorization code into said device with said keys of said device, said device transmitting said authorization code; comparing said authorization code with one or more predetermined codes; and if said authorization code is identical with one said predetermined code, bypassing at least one said motion detector in the vicinity of said device for at least a short period of time.
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17. A method of dynamically bypassing portions of a security alarm system in a secured space having one or more motion detectors, comprising:
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providing an authorized user of the secured space with a device to be borne by the user, said device transmitting an authorization code; comparing said authorization code with one or more predetermined codes, at least one said predetermined code being changed each time that said alarm system is disarmed, and if said authorization code is identical with one said predetermined code, bypassing at least one said motion detector in the vicinity of said device for at least a short period of time.
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Specification