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7598884 |
Seismic warning system
The invention relates to a seismic warning system comprising of two or more sensors for detecting shock signals and electronic signal processing elements for processing and analyzing said signals....
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7593512 |
Private VoIP network for security system monitoring
Security systems typically communicate with alarm monitoring centers using a telephone connection. Security systems will check in with the alarm monitoring center with a diagnostic signal at a...
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7557721 |
On-board thermostat and a system for detecting excess temperature
The thermal detection and visual alarm unit includes a plurality of first expansion thermal detectors ( 17 ) with normally closed contacts that are connected in series with a first lamp ( 15 ) to...
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7525422 |
Method and system for providing alarm reporting in a managed network services environment
An approach for alarm reporting is provided. An alarm from a first alarm feed and an alarm from a second alarm feed are received. A merged alarm is generated to provide a consistent view of an...
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7474947 |
Vehicle customizing system
A vehicle customizing system is highly reliable in the event of communication failures. For setting control characteristic values pertaining to functions of control units to control characteristic...
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7467029 |
Dual processor supervisory control system for a vehicle
A vehicle control module for controlling an actuator unit in response to an input having a first processor, a first communication link coupled to the first processor, and a second processor coupled...
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7446659 |
Theft deterrent device with dual sensor assembly
A theft deterrent device allows a customer to handle an item of merchandise to which the device is connected. The device is configured to protect items of merchandise having first and second pieces...
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7436297 |
System and method for protecting networked security devices
A system for protecting a plurality of networked security devices is disclosed. The system includes a plurality of connectors, a plurality of security containers coupled together by the plurality...
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7436291 |
Protection of devices in a redundant configuration
A network communication device is provided, comprising a control processor for controlling operation of the device, a reset module which is controllable independently of the control processor for...
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7429929 |
Safety device
A safety device includes a safety module ( 11 ), a data bus ( 12 ) and one or several transmitters ( 15, 16, 17, 18, 19, 20 ). The safety module transmits a pulse train (one dynamic signal) over...
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7382245 |
Method and apparatus for indicating a power condition at a notification appliance
A notification appliance and an alarm system are provided. The notification appliance comprises an alarm indicator and a control module, which is configured to perform notification applications by...
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7333010 |
Method and apparatus for verifying operation of notification appliances during low input voltage condition
A method for verifying operation of notification appliances on a notification appliance network during low input voltage conditions is provided. An output voltage is supplied to a network and is...
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7298253 |
Method and apparatus for deciding whether to issue an alarm signal in a security system
A method of operating a security system includes providing a plurality of sensors, and detecting at least one event with the sensors. A decision whether to initiate an alarm signal is dependent...
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7286049 |
Method and system of re-directing and backing up security system data at a receiver
A monitoring system having a plurality of receivers connected to at least one other receiver such that data can be transmitted from a primary receiver to a backup receiver if a data path to an...
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7262693 |
Process field device with radio frequency communication
A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop. The loop carries data and provides power to...
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7098798 |
Process device with loop override
A process device for use in a process control system includes output circuitry configured to couple to a process control loop. The output circuitry controls electrical current through the loop....
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7058967 |
Video distribution system and method
An integrated video distribution system for distributing video signals from a plurality of sources. The system includes a digitizer arrangement arranged to receive analog video signals from a...
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7049952 |
System for detection of hazardous events
A system for detecting the occurrence of anomalies, includes a plurality of spaced apart nodes, with each node having adjacent nodes, each of the nodes having one or more sensors associated with...
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7034705 |
Emergency information terminal and emergency information system including terminal
An emergency information terminal includes two power supply circuits supplying power to the internal circuits including a controller. If one of the power supply circuits fails, the other power...
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6982641 |
Simplified circuit for intrusion detectors
The present invention comprises a simplified control/hook-up circuit for intrusion detection devices that reduces the overall number of wires and attendant connections necessary between the control...
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6927695 |
Sensor loop with distributed power sources and method therefor
A fail-safe electrical control system in the form of a sensor loop ( 24 ) is provided. The sensor loop ( 24 ) includes any number of sensor units ( 22 ) coupled in series. Each sensor unit ( 22 )...
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6914519 |
System and method for muting alarms during a conference
A system, method, apparatus, means, and computer program code for muting or disabling audible alarms or alerts during a conference or collaboration event are provided. During the conference or...
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6888459 |
RFID based security system
A system and method for constructing a security system for a building using at least one RFID reader to communicate with at least one RFID transponder to provide the radio link between each of a...
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6816125 |
Forming electromagnetic communication circuit components using densified metal powder
Manufacturing techniques are described for forming electrical components. For example, a layer of a metal powder composition is deposited onto at least a portion of a substrate. Pressure is applied...
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6816068 |
Programmable temporal codes/pulses
A software driven, audible output control module can carry out bi-directional communications with an alarm system using the same common link as is used by ambient condition detectors, such as smoke...
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6778082 |
Smoke detector system for a house
A method and apparatus are provided for activating smoke detector alarms within a house. The method includes the steps of providing a plurality of smoke detectors dispersed among a plurality of...
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6771170 |
Power system waveform capture
A circuit monitoring system for performing synchronized waveform capture. A waveform capture trigger communication network interconnects a plurality of monitoring devices. The system provides...
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6756896 |
Distributed residental alarm system and method therefor
A distributed residential alarm system and method provides protection of occupants and property from loss due to theft or hazardous conditions in the residence such as fire or flooding. The alarm...
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6696940 |
System and method for loop diagnostics in a security system
A security system comprising a control panel and a plurality of individually-addressable security system modules connected to the control panel on a loop data bus. Each of the security system...
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6693531 |
Integrated control of a system
A controlled system comprises a plurality of peripheral operating devices connected to an electrical power supply. Each of a plurality of local controllers is mounted near an associated peripheral...
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6693529 |
Fire alarm system
In a fire alarm system, a plurality of terminal equipments are connected to a control panel. A memory is provided with each terminal equipment, which stores characteristic data indicating...
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6674362 |
Emergency informing terminal and emergency informing system including the terminal
A main controller for controlling an emergency informing terminal, and a sub controller for controlling communications with an external device are provided. The main controller and sub controller...
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6614347 |
Apparatus and method for providing alarm synchronization among multiple alarm devices
A method and apparatus for synchronizing a series of interconnected alarm devices. The alarm device detecting an alarm condition produces a signal having a distinct rising edge which is detected at...
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6606028 |
Apparatus and method for supervision
A supervisable multi-processor communication system includes circuitry and executable instructions for evaluating the communication capability of a plurality of branches in the system. Branches...
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6396398 |
Method and apparatus for safe single-channel evaluation of sensor signals
For the safe evaluation of sensor signals, singular further processing is permitted by producing a redundancy signal in accordance with a prescribed algorithm when the sensor signals are actually...
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6392536 |
Multi-sensor detector
A multi-function detector has at least two different sensors coupled to a control circuit. In a normal operating mode the control circuit, which could include a programmed processor, processes...
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6374165 |
Railway information transmission method and system
In a railway information transmission method and system wherein information is transmitted by a consecutive transmission mode between on-vehicle control equipment and ground control equipment, a...
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6356191 |
Error compensation for a process fluid temperature transmitter
A process fluid temperature transmitter includes circuitry that improves compensation of error due to the presence of one or more non-associated voltage sources in a resistance temperature device...
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6353393 |
Switch status monitoring system
A switch status monitoring system ( 10 ) includes a switch signal processor ( 16 ) that operates in either of a supervised mode or an unsupervised mode for each monitored switch ( 12 ). Selection...
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6337570 |
Current loop comprising a test circuit
The 4 mA-20 mA type or 0-20 mA type current loop connects an analog sensor ( 1 ) to an acquisition system ( 3 ), respectively carrying a sensor current (Ic) and an acquisition current (Ia). A test...
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6265971 |
Fiber-sync communications channel
A monitoring system in an alarm apparatus includes a central panel for controlling operation of the alarm apparatus, first and second terminals, the second terminal including a communication...
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6259363 |
Detector removal signalling device
A signalling device applies a pulsating signal to supply lines when a head is removed from a base. A monitoring system includes a plurality of such signalling devices and is responsive to the...
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6252501 |
Message repeating apparatus and method
A multi-processor communication system includes a plurality of processors in bidirectional communication with one another. One processor can transmit a message to an intended recipient. The message...
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6246318 |
Modular safety switching
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6198389 |
Integrated individual sensor control in a security system
A intruder detection system is described comprising a programmable alarm control panel capable of issuing an alarm signal representative of an intruder in a protected zone wherein the control panel...
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6166632 |
Interactive alarm systems
An interactive security system includes a host controller, a security service center coupled with the host controller to receive an emergency signal from the host controller, a client society...
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6163263 |
Circuitry for electrical device in multi-device communications system
A self-monitoring power supply can be incorporated into electrical devices which are part of a multi-device communication system. The power supply is energized by electrical energy received from a...
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6150935 |
Fire alarm system with discrimination between smoke and non-smoke phenomena
An alarm system which incorporates a plurality of highly sensitive, early warning, smoke detectors incorporates functionality for distinguishing between detector signals in response to ambient...
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6127932 |
Optical flame sensor having opaque hollow tube
A flame sensor for sensing flame produced by the burner of a furnace. The sensor includes a closed end tube having a photosensitive element located therein. The photosensitive element is sealed off...
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6124790 |
System and method for filtering an alarm
A method for filtering an alarm can be broadly summarized by the following steps: The state of an alarm is read or determined over time, which creates a pattern of state transitions for the alarm....
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