House arrest monitoring system
Patent 4918432 Issued on April 17, 1990. Estimated Expiration Date: 
August 15, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 15, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3478344 3882277 3898984 Driver sleep or fatigue alarm Central station alarm reporting system Security alarm system Movement monitor Low battery indicator Method and apparatus for target deactivation and reactivation in article surveillance systems Personnel security system InventorsAssigneeApplicationNo. 394291 filed on 08/15/1989US Classes:340/573.4, House arrest system, wandering, or wrong place340/10.1, Interrogation response340/825.72, Wireless link379/38Personal monitoring (e.g., for the ill or infirm)ExaminersPrimary: Swann, III, Glen R.Assistant: Mullen, Thomas J. Jr. Attorney, Agent or FirmForeign Patent References
International ClassesG08B 023/00G05B 023/02 G08C 019/00 AbstractA house arrest monitoring system that automatically verifies the presence or absence of prisoners, patients or other personnel who are required to remain at a prescribed location or to report to the prescribed location at a certain time. The system includes an identification tag that is worn by the individual being monitored. This tag transmits an identification signal that includes a unique identifying code, as well as status information that indicates whether the tag has been removed from near the flesh of the individual being monitored. The tag is totally self-contained and includes circuitry to sense when the tag is held near the flesh of the individual, as well as code generating and transmitting circuitry to periodically generate and transmit the identification signal. A field monitoring device (FMD) is included at the prescribed location to receive and process the identification signal, and to communicate with a central processing unit (CPU) located at a remote central monitoring location. The CPU is able to communicate with a large number of FMD's located at diverse field locations.Other References
Field of SearchTestingSimulation of condition Automatic (e.g., periodic, start-up) Location indication Interrogator-responder Alarm system supervision With particular coupling link Wireless link PRESENCE DETECTION ONLY CARRIER WAVE REPEATER OR RELAY SYSTEM (I.E., RETRANSMISSION OF SAME INFORMATION) Monitoring With transmission line Body attached or connected Personal monitoring (e.g., for the ill or infirm) Automatic dialing | |
