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5914658 |
Crime prevention display device, exhibit crime prevention alarm control method and apparatus therefor
A crime prevention display device is disclosed which includes a casing (21) provided therein with a chuck mechanism (20) for gripping a wire (W) inserted therethrough, a crime prevention alarm...
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5905433 |
Trailer communications system
A trailer communications system (36) is provided. The system (36) includes a trailer transducer unit (22) for location on a trailer (12). A vehicle transducer unit (24) can be located on a vehicle...
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5898369 |
Communicating hazardous condition detector
A hazardous condition detector system for a dwelling structure made up of independent detectors each capable of sensing the presence of a hazardous condition at its location, generating a local...
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5892442 |
Two-way pager alarm system
A two-way pager alarm system for a home or business that reports to a security monitoring center in a wireless fashion. The alarm system, when required, initiates communication with the security...
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5867097 |
Method and apparatus for alarm signal processing
A remote-controlled safety control system includes: an information transceiver for checking and controlling disorders for safety control, a controller for receiving alarm signals received from the...
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5861804 |
Computer controlled security and surveillance system
The present invention provides a complete, easy to use and install security and surveillance system for a personal computer, which is designed to act as a peripheral to the personal computer. The...
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5831526 |
Atmospheric hazard detector network
A network of identical atmospheric hazard detectors communicates a locally sensed hazard condition directly to multiple neighboring detectors using RF command communication, without the use of...
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5815074 |
Signal transmission apparatus
A signal transmission apparatus including a main unit having a signal transmission terminal, and one or more sub units (or repeaters) each having first and second signal transmission terminals. A...
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5805063 |
Wireless security sensor transmitter
An apparatus and method for sending messages from a sensor to a system controller in a wireless security or monitoring system, including processing signals from the sensor and generating message...
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5786757 |
Load shed scheme for two wire data transmission
An alarm system for detecting and warning of the presence of alarm and trouble conditions in transponders located in a plurality of zones consisting of a loop controller having a plurality of input...
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5774050 |
Radio alarm security system
The radio alarm security system, particularly for the protection of persons within a building against intruders, includes a mobile central alarm unit which is provided with a separate power source...
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5761206 |
Message packet protocol for communication of remote sensor information in a wireless security system
In a security or monitoring system having a system roller and one or more sensor/transmitters, information is sent from the transmitter to the system controller in message packets. As improved...
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5754103 |
Transmission line-monitoring apparatus for use in a fire alarm system
A transmission line-monitoring apparatus which is able to detect the occurrence of a short circuit even when a line has a large resistance and also to speedily disconnect the short-circuited...
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5736927 |
Audio listen and voice security system
A security alarm system including multiple, zone distributed audio monitors and alarm sensors which report and verify detected alarms and communicate with a system controller and central station....
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5729596 |
Security system
Electrical appliances each include an identity module which carries a code. Whenever mains electrical power is reconnected to one of the appliances, FSK signals are sent via the main electricity...
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H001713 |
Remote alarm for personal intelligent communicators
A remote alarm apparatus is described. A transmitter is communicatively coupled to a primary communications device. The transmitter broadcasts a notification signal in response to a primary...
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5721530 |
Stand alone mode for alarm-type module
There is provided an alarm system for detecting and warning of the presence of alarm and trouble conditions in a plurality of zones. The system comprises a loop controller having supply lines...
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5719622 |
Visual control selection of remote mechanisms
An apparatus for selecting and controlling devices located remotely from a local site where an operator resides. A laser or other source of a focused electromagnetic bean moves in association with...
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5717379 |
Remote monitoring system
A remote monitoring system for monitoring properties of persons to be protected includes at least one video pickup device (C) positioned at the property (1) to be protected. The video pickup device...
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5714933 |
System for protection of goods against theft
A system for protection of goods against theft includes a control unit and protection modules associated with the goods, the control unit including cordless communication means and the protection...
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5710648 |
Optical communication system and remote sensor interrogation
A sensing system including an optical receiver for receiving downstream optical signals and for converting the downstream optical signals to downstream electrical signals. An optical transducer...
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5708416 |
Wireless detection or control arrangement for escalator or moving walk
A control or detection arrangement for escalators, moving walks and the like includes a detector, an encoder unit connected to the detector, a wireless transmitter connected to the encoder unit, a...
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5694114 |
Coherent alarm for a secure communication system
A high speed secure fiber optic communication system that includes a coherent alarm system utilizes a pair of single mode fiber optic cables in combination with one or more light sources, phase...
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5689235 |
Electronic security system
An electronic security system includes a detector (S1, S2) for detecting unauthorized entry of a trespasser into a predetermined outdoor area (A1) or an indoor area (A2) and for generating a...
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5689233 |
Emergency information offering system
An emergency information offering system collects and offers information of lifeline facilities upon emergency properly by combining information infra-structures and public infrastructures. In the...
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5686885 |
Sensor test method and apparatus
In a security system having a remote monitoring station, a sensor is tested when the security system is in a normal operating mode. The sensor is tested by actuation of a button on the sensor....
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5680119 |
Vehicle responsive alert system
A vehicle responsive alert system includes a receiver for receiving a recognizable signal from a preselected vehicle; a control member, positioned at a location and operatively associated with the...
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5677667 |
Data communications apparatus for tractor/trailer using pneumatic coupler
In combination with a tractor and a trailer, an apparatus and method are provided for monitoring various operating conditions of at least the trailer by a driver positioned on the tractor. The...
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5666010 |
Safety system for machine tools
A safety device and a supply power controller of a machine tool providing bidirectional communication for determining whether the safety device is appropriate for the particular machine tool, and...
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5661459 |
Proximity monitoring apparatus employing encoded, sequentially generated, mutually orthogonally polarized magnetic fields
A proximity detector includes a low frequency magnetic field generator, located with an individual being monitored, the generator sequentially generating a plurality of encoded, time varying...
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5661471 |
Emergency alert system for a protected region employing RF and non-RF signalling
A signaling network system including a plurality of receivers distributed in a protected region comprising multiple protected enclosures and including RF receivers as well as a plurality of non-RF...
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5654690 |
Fire alarm system
Disclosed is an improved fire alarm system for an information providing system having a plurality of terminal devices for providing information to a plurality of operators, respectively. The fire...
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5640144 |
RF/ultrasonic separation distance alarm
An alarm system for preventing loss or theft of one or more articles includes an ultrasonic transmitter incorporated in the article(s) to be protected, and a monitoring unit provided with a...
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5638046 |
Security system
A security system for determining intrusion status in a defined area. The system uses a sensor unit, a transmitter, and a receiver. The transmitter sends a unidirectional repetitive coded signal to...
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5638047 |
Sound activated transmitter
A remote annunciator system in which the emission of an acoustic signal by a first annunciator is detected by an acoustic signal detector which causes a radio frequency transmitter to transmit a...
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5621383 |
Ring network system capable of detecting an alarm in each node
In a ring network system formed by a plurality of nodes connected to one another through a ring-shaped path, each of the nodes collects all of node information signals representative of states of...
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5619183 |
Video audio data remote system
A method and system for remote assistance and review of an operator working with complex equipment. An operator at a station at a local site is coupled to an advisor at a station at a remote site,...
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5614886 |
Article removal alarm system for use with portable electronic device
An article removal alarm system includes a base unit for generating an ultrasonic signal for transmission in the vicinity of the base unit. A remote unit accompanying an associated article includes...
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5614883 |
Automotive opto-electric starter interlock
An automotive opto-electric starter interlock for use in a motor vehicle for the purpose of preventing the engine from being remotely started unless the transmission is in neutral. The starter...
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5612671 |
Method of learning tire pressure transmitter ID
A low tire pressure warning system has a pressure sender and a radio transmitter in each tire, and a vehicle mounted receiver includes a microprocessor controller programmed to automatically learn...
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5594428 |
Combination security unit
A security system includes a small hand held remote unit which allows a user to communicate with an inside receiver/transceiver. The inside receiver/transceiver is battery powered and operates in a...
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5589818 |
Personal response system with remotely adjustable microphone sensitivity
A personal response system which provides speakerphone mode and emergency audio mode by controlling microphone sensitivity when audio signals fall below an acceptable level. Adjustable microphone...
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5587705 |
Multiple alert smoke detector
The battery powered smoke detector of the present invention is designed to provide an early warning of the presence of an environmental condition of fire or smoke to persons in remote areas of a...
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5578989 |
Personal security system with system wide testing
A personal security system with system wide testing includes a portable transmitter that produces an emergency signal including a personal identification number and an auxiliary code. The auxiliary...
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5576690 |
Combined audible and visual signaling device
Push button controlled wireless transmitters send digitally encoded signals to a plug-in receiver/signaling device. The receiver/signaling device has a microprocessor suitably programmed to respond...
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5565844 |
Intrusion detector
An intrusion detector system employing a remote, 360° infrared detector. The system includes a base unit with a receiver, controller, and phone jack, a remote sensor which is adjustable along a...
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5555454 |
Remote security light signal alert system
A remote alert system includes an electrical signal transmitting unit located at a first location and a receiving unit located at a second location remote from the first location. The signal...
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5552780 |
Method and apparatus for transmitting coded light through low transmissible materials
A transceiver for transmitting and receiving coded light through a motor vehicle windshield from an in-vehicle computer. The coded light is binary encoded data that is first transmitted through the...
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5543778 |
Security system
A home security system includes a plurality of alarm elements; a central console including a microprocessor in wireless communication with the alarm elements and effective to receive a signal from...
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5537093 |
Electrooptical line module for transmitting in level-1 synchronous digital hierarchy with synchronizing unit
An electrooptical line module for transmitting in Level-1 Synchronous Digital Hierarchy with a synchronizing unit that includes a single line module on a single printed circuit and components...
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