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5530426 |
System and associated method for protecting valuable personal possessions
A system for protecting valuable personal possessions comprises a first housing, a transmitter of wireless energy disposed in the first housing, a second housing, and a receiver of the wireless...
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5525963 |
Apparatus for actuating a safety device
Apparatus for actuating a safety device comprises an acoustic sensor and apparatus coupled to the sensor for actuating the safety device in response to sound of a predetermined character. Apparatus...
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5521582 |
Alarm system
A signalling device to be worn on the person includes an emergency button (2) which triggers an internal transmitter to transmit an encoded identification signal followed by audio signals derived...
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5500639 |
Satellite unit identification system
In a fire, smoke or intruder detection system including a master unit and satellite units with remote sensors, the satellite units send alarm transmissions to the master unit over a radio frequency...
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5499014 |
Security alarm system
A security alarm system includes a wireless transmitter unit, a portable control unit, and a receiver unit. The transmitter unit includes a sensor for detecting the opening of a door or window to a...
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5483224 |
Security system and method for monitoring security in the vicinity of a location perimeter
A security system and method for monitoring security in the vicinity of a location perimeter is provided. The security system includes security sensors positioned in a detecting relation to the...
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5483223 |
Personal security system with end-to-end test
A personal security system includes a test feature for end-to-end testing. A portable transmitter produces an emergency signal including a personal identification number and an auxiliary code. The...
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5467074 |
Personal security system with transmitter test mode
A portable transmitter produces an emergency signal including a personal identification number and an auxiliary code. The auxiliary code may be a test bit which, when set, indicates that the...
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5455567 |
Crane anti tractor lift system
An automatic signaling system from a tractor-trailer being accidentally lifted with the cargo by the overhead traveling crane includes a height-change sensor for triggering a pulse generator which...
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5446445 |
Mobile detection system
A mobile detection system for detecting a fire, gas leak, intruder, or other abnormal condition in a house or an office, and for alerting a central monitor, fire station, police station, or an...
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5430433 |
Radio analog sensor
A radio analog sensor for transmitting analog signals of a temperature or smoke density to a remote place by radio is used as each of sub devices 12-1 to 12-n. When a change of the analog detection...
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5422626 |
Electrical monitoring system
A system for monitoring a location for the occurrence of a predetermined condition thereat includes a transmitter located at the monitored location for normally transmitting a series of first...
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5416466 |
Personal security system with fixed testing transmitters
A personal security system includes signaling transmitters and receivers for detecting the transmitted signals. The receivers provide an output representing the received signal strength, which is...
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5406269 |
Method and apparatus for the remote verification of the operation of electronic devices by standard transmission mediums
Hardware or software is added to a local system that has incorporated therewith a modem that is normally connected to the switched telephone system to initiate surreptitious calls to report various...
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5402106 |
Shopping cart theft prevention system
A shopping cart security system assists in preventing the theft of a shopping cart from a parking lot of an establishment where the carts are used. The parking lot has at least one entrance and...
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5402466 |
Home voice mail and paging system using an answering machine and a wide variety of alarms
Described is an automatic paging system that will alert a paging service subscriber to the occurrence of specific events at a remote location using a standard home type answering machine and/or a...
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5386209 |
Cluster alarm monitoring system
An alarm unit is adapted to cooperate by radio transmission with a plurality of other such units arranged in a cluster. Each alarm unit includes a radio transmitter and receiver; a modulator for...
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5382943 |
Remote monitoring unit
A remote monitoring apparatus includes a camera for producing a video signal from a picture of a remote site location being monitored, an image processor for outputting an image signal through an...
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5381136 |
Remote data collection and monitoring system for distribution line
A remote logger unit monitors various operating parameters of a distribution line, or transmission system, such as pressure, temperature and flow such as for natural gas, water or oil, and alerts a...
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5365217 |
Personal security system apparatus and method
A method and apparatus for monitoring safety of persons within a predetermined area includes personal transmitters for wirelessly transmitting distress signals, stations for detecting transmission...
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5335267 |
Apparatus and method for transmitting text data directly to a facsimile machine
A monitoring apparatus includes a conversion module having firmware embedded therein for converting text data in a first code such as ASCII to binary text data in a second code such as facsimile...
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5309144 |
Proximity sensing security system
A security system uses a base unit and a portable transceiver which cooperate to provide automatic monitoring of a secure perimeter. An intrusion sensor is employed to activate a transmitter for...
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5289534 |
Door ajar signalling device
A door phone controller has a door ajar feature for alerting a user that a door was left open. The door phone controller accommodates the door ajar feature in several different ways depending upon...
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5283549 |
Infrared sentry with voiced radio dispatched alarms
An electronic security sentry for monitoring a designated area to detect unauthorized intruders comprises a housing that contains a microprocessor controller, a power source, and a two-way radio...
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5278539 |
Alerting and warning system
An emergency alerting system for alerting or warning large numbers of people of the occurrence or threat of an emergency using available communications media. Multiple facilities are monitored for...
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5272465 |
Automatic alarm code converter
An automatic alarm code converter wherein a plurality of alarm dialers report alarm conditions using security industry standard pulsed tone, FSK, or DTMF formats and call through the PSTN to the...
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5264828 |
Personal security alarm system
A personal security alarm system which activates audible and visible alarms instantly at the location of an emergency, and simultaneously notifies security personnel of the existence and location...
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5257007 |
Portable security system
A fully hand portable security system includes a plurality of radio transmitter equipped detectors with batteries, configured to generate one or more radio signals indicating the sensing of a...
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5241300 |
SIDS detection apparatus and methods
A transilluminated optical fiber is placed adjacent to an infant's respiratory moving parts using an elastic fabric. Use is made of the effect that moving the fiber causes a modulation of the...
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5235320 |
Alarm system
An alarm system for generating an alarm from a remote location and which utilizes electronically generated codes to access selected functional portions of the alarm system circuitry and which...
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5223816 |
Security and communication system with location detection
An improved security and communication system accurately and quickly locates the position of a signaling portable radio frequency transmitter. When a portable transmitter is activated, a first...
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5223815 |
Portable anti-theft device
A portable anti-theft system and method for sounding an alarm which is a speech synthesizer when a first portable unit and a second portable unit become separated by a predetermined distance is...
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5202661 |
Method and system for fusing data from fixed and mobile security sensors
A system for detecting intrusion into a secured environment using both fixed and mobile intrusion detectors includes a multiplicity of fixed intrusion detection sensors are each deployed at...
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5191317 |
Low air warning system for scuba divers
A low air warning system for scuba divers in which a pressure switch and an electromagnetic transmitter are positioned at or near the high pressure air supply tank of the scuba diver and a...
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5189395 |
Electronic house arrest system having officer safety reporting feature
An electronic house arrest monitoring (EHAM) system allows a monitoring officer, charged with the responsibility of making periodic and/or random physical checks with individuals whose presence at...
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5182543 |
Miniaturized data communication and identification system
A miniaturized communications unit for use in object tracking, control and the like. Each communications and identification unit repeatedly transmits an identification code on a predetermined...
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5173932 |
Security system comprising a signal transmitter
A security system comprises a signal transmitter (1) with a first sensor (2) for conveying status information to a receiver (3) via a telecommunication channel (4), the signal transmitter being...
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5166664 |
Warning method and apparatus and parallel correlator particularly useful therein
A method and apparatus for monitoring a particular location for the occurrence of a predetermined condition, such as fire, smoke, gas, etc., involves continuously transmitting, from a transmitter...
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5164704 |
System for transmitting alarm signals with a repetition
System for transmitting alarm signals, comprising at least one portable transmitting unit and one central receiver, the transmitting unit comprising a control circuit which is connected to an...
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5162776 |
Emergency service apparatus and method
An apparatus and method for providing a positive indication at a central monitoring station of a personal emergency response system that a responder has arrived at a subscriber's location and has...
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5154504 |
Communications and testing for emergency systems
The present invention relates to emergency systems used in buildings, and particularly to emergency lighting systems whose function is to provide emergency illumination in the event of failure of...
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5155469 |
Wireless alarm system
In a wireless alarm system an arrangement for increasing the reliability that messages will be received is provided. Each transmitter transmits an alarm message a plurality of times with delays...
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5150243 |
Method and apparatus for monitoring an optical network interface
A method and apparatus for monitoring an optical network interface. Signals containing information relating to the functional state of an optical network interface are delivered to an operation...
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5148148 |
Radio alarm system
A radio alarm system for detecting abnormalities such as a fire having a central unit which is adapted to receive and decode the radio signal transmitted from each terminal device and to give an...
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5144285 |
Pulsed ultra sonic swimming pool alarm apparatus
Pulsed ultrasonic apparatus for monitoring a swimming pool includes a transmitter housing securable to a child and provides a swept frequency pulsed output from a transducer within the housing when...
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5140308 |
Radio automatic alarm transfer system
A mobile radio system has an upward and downward control channel for controlling a call-out transmitted from a mobile terminal station, independently from a communication channel. The system...
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5109200 |
Electrically self-adjusting, compact and light-weight remote circuit tester
A circuit tester includes a light-weight portable transmitter and receiver, with the transmitter being provided with several interchangeable plugs for the testing of power circuits of different...
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5109399 |
Emergency call locating system
A computer-based system for receiving emergency telephone calls which, upon receipt of the call, provides a voice connection to the operator as well as displaying a map showing the location of the...
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5103206 |
Security system
A security system including a plurality of alarm equipped security units usable at discrete locations and operated by individual power sources at those discrete locations. The units are...
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5103474 |
Drive-by personnel monitoring system with radio link
A personnel monitoring system for monitoring presence or absence of particular individuals at preassigned monitoring locations. A local unit is provided at each monitoring location for detecting...
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