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| Number | Title | Issue Date |
| 7982597 | Device for detecting current-impressed signals in security systems A device and method for detecting current-impressed useful signals, added to a DC supply current, for a digital alarm line security system are described. To operate the alarm system using high DC supply currents on the alarm line without significantly affecting the ... | 07/19/2011 |
| 7443310 | Remote sensor network system with redundancy A multi-sensor network having a plurality of receivers and sensors connected to a common communication line is provided. A controller will activate one of the plurality of receivers, thereby allowing one of the plurality of sensors to transmit data to the communicat... | 10/28/2008 |
| 7417535 | Apparatus and method for converting a low voltage AC wiring circuit to a high speed data communications link An apparatus for converting a low voltage alternating current (AC) wiring circuit to a high speed data communications link, comprising a primary coupling circuit and a secondary coupling circuit. The apparatus provides low voltage AC power to a data device and coupl... | 08/26/2008 |
| 7414526 | Coupling of communications signals to a power line In one embodiment, a system for coupling communications signals onto a medium-voltage power line includes a metal oxide varistor, a disconnect device and a capacitor. The metal oxide varistor is electrically coupled to the medium voltage power line. The disconnect d... | 08/19/2008 |
| 7403113 | GaN-based sensor nodes for in situ detection of gases A system for detecting chemical/biological substances and a detection method. The system comprises a plurality of sensing units or nodes and a radiofrequency link. Each unit has several sensors with different sensing curves. Each sensor is able to transmit informati... | 07/22/2008 |
| 7315258 | System and method for programming a code of an emergency call transmitter A system for programming a code for a wireless short range RF transmitter, for example, an emergency call transmitter or keyless entry, has a RF transmitter that transmits an RF signal containing a code. A code receiver receives a signal containing a code and a proc... | 01/01/2008 |
| 7304569 | Networking of discrete plumbing devices A network of wirelessly connected sanitary appliances, their associated triggering devices and a remotely located network node is disclosed. The remotely located network node permits the monitoring and gathering of information concerning the appliances and their ass... | 12/04/2007 |
| 7265669 | Networks with sensors for air safety and security Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concen... | 09/04/2007 |
| 7259656 | System and method for displaying safe exit routes during an emergency condition A system and method displays a safe route from a location to a destination that avoids one or more hazards detected, such as a fire or a gas leak. ... | 08/21/2007 |
| 7249287 | Methods and apparatus for providing alarm notification A method for indicating an alarm condition in an industrial process includes measuring a parameter of the industrial process that varies over time and determining at least one parameter limit as a function of the parameter and also varying over time. The method furt... | 07/24/2007 |
| 7242295 | Security data management system A sensor unit for use in a surveillance system is provided. The sensor unit interfaces with a sensor device to receive sensor data from the sensor device. The sensor unit is configured to generate an event record based upon received sensor data. The event record is ... | 07/10/2007 |
| 7194363 | Ultrasonic flowmeter A low power ultrasonic flowmeter to be powered by a two wire power supply loop is described, comprising: an ultrasonic flow sensor, a signal processing unit for determining a measurement result based on measurements performed by the ultrasonic flow sensor, an input/... | 03/20/2007 |
| 7193511 | Rapid-mounting security monitoring and controlling system A rapid-mounting security monitoring and controlling system is disclosed. Co-axial cable is used to transmit power supply, images, sound, and to control detected signals so as to rapidly installation of wirings for the security monitoring and controlling system. The... | 03/20/2007 |
| 7173526 | Apparatus and method of collecting and distributing event data to strategic security personnel and response vehicles A security and surveillance system for aircraft on the ground incorporates a plurality of strategically spaced sensors including video imaging generators, audio sensors, motion detectors, and fire and smoke detectors for monitoring critical components and critical a... | 02/06/2007 |
| 7170394 | Remote current sensing and communication over single pair of power feed wires Disclosed is a novel technique for transferring power and signals between two electrical devices over a single wire pair. In particular, a remote sensor is connected to a host device. Power to the remote sensor is supplied through a voltage reference and control loo... | 01/30/2007 |
| 7167100 | Apparatus for leaving message on refrigerator An apparatus for leaving a message on a refrigerator is disclosed. The apparatus can be mounted on the refrigerator so as to broadcast a voice upon opening a door of the refrigerator. A control unit for processing and controlling the voice is mounted on the main bod... | 01/23/2007 |
| 7155296 | Configuration method for an installation comprising solar protection and/or lighting devices The configuration method for an installation comprising solar protection and/or lighting devices controlled by a central unit comprising a memory, microprocessor and a user interface, is characterized in that method comprises an iteration, over all of the solar prot... | 12/26/2006 |
| 7099439 | Loop test apparatus and method Systems and methods are described for measuring the quality of telephone transmission lines. A device, such as a loop test apparatus, can be located at a customer's premises and used for remotely diagnosing telephone line impairments, especially concerning the local... | 08/29/2006 |
| 7088233 | Personal medical device communication system and method A personal and/or institutional health and wellness communications system, which may be used for a variety of emergency and non-emergency situations using two-way communication devices and a bi-directional communication network. In one application two-way pagers are... | 08/08/2006 |
| 7053756 | Facilitating communication of data signals on electric power systems The invention includes a method, system, and device for communicating a data signal on an electric power system. The inventive method includes communicating the data signal to the electric power system, and modifying the characteristics of the electric power system ... | 05/30/2006 |
| 7038583 | Modem communicator A single communication apparatus for alarm system control boxes that include the combination of a digital communicator and a remote communicating device. The communicating apparatus transmits status reports and events to a remote location. Remote login is permitted ... | 05/02/2006 |
| 7026936 | Distributed RF coupled system An RFID sensor system and method is disclosed. An RFID sensor system includes a conducting path having first and second conductors, and one or more RFID sensing transceivers spatially-distributed along the conducting path and capactively-coupled to the first and sec... | 04/11/2006 |
| 7012518 | Dimmer control system with two-way master-remote communication A dimmer control system has a communication control loop that connects a master unit in series with a plurality of remote units, and it is superimposed in series on the dimmer load line so as to allow two-way communication between the master unit and remote units wi... | 03/14/2006 |
| 6992579 | Burglar alarm system having reduced wiring Normal hard-wired domestic burglar alarms have cables with six conductors extending between the alarm controller and each remote input/output device (such as an entry keypad). The present alarm system has an alarm controller, a remote input/output device, a cable ex... | 01/31/2006 |
| 6987449 | Dimmer control system with tandem power supplies A dimmer control system has a communication control loop that connects a master unit in series with a plurality of remote units, and it is superimposed in series on the dimmer load line so as to allow two-way communication between the master unit and remote units wi... | 01/17/2006 |
| 6980110 | Apparatus for remote notification The apparatus for providing notices to a user interface concerning status of at least one item in a container involves a loading opening and a collection opening, a first sensor connected to the loading opening for generating a first signal when an item is inserted ... | 12/27/2005 |
| 6960998 | Bi-directional wireless detection system A system is described for detecting at least one event of interest. The system comprises a detector, a programmable controller, and a network. Upon detection of an event of interest, the detector communicates that information to the programmable controller through t... | 11/01/2005 |
| 6933837 | Trailer based collision warning system and method A trailer based collision warning system includes one or more side object detection sensors, one or more backup assist sensors, a driver vehicle interface, and trailer-mounted display units operating essentially independent of the tractor with all detection and warn... | 08/23/2005 |
| 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) includes a local power source (26), a local... | 08/09/2005 |
| 6900726 | System and method for fiber optic communication with safety-related alarm systems A system and method for monitoring and safety related systems (SRSs) in a Secure Compartmented Information Facility (SCIF) that addresses concerns for security of electronic emanations from equipment in the SCIF. A fiber optic link connects an optical receiver locat... | 05/31/2005 |
| 6888444 | SIGNAL TRANSMITTING CIRCUIT, SIGNAL RECEIVING CIRCUIT, SIGNAL TRANSMITTING/RECEIVING CIRCUIT, SIGNAL TRANSMITTING METHOD, SIGNAL RECEIVING METHOD, SIGNAL TRANSMITTING/RECEIVING METHOD, SEMICONDUCTOR INTEGRATED CIRCUIT, AND CONTROL METHOD THEREOF In transmitting a first pair of differential clock signals UCLK, UXCLK having an extremely small amplitude voltage based on a power-source potential and a second pair of differential clock signals LCLK, LXCLK having an extremely small amplitude voltage based on the ... | 05/03/2005 |
| 6852923 | Device and method for imparting movement to a selected line A device and method for imparting movement to a selected line are disclosed. A device incorporating teachings of the present invention may include a motion arm extending through an opening in the housing of the device. The arm may be coupled to a connection clip tha... | 02/08/2005 |
| 6842123 | Electromechanical switching device and emergency shut-off and communication system utilizing same A switch assembly (1) comprises a push-button section (52) and a push-button body (53) as an operation transmitting member, an LED box (54) and a contact-making contact (56) as a direct functioning member, and a communication-funct... | 01/11/2005 |
| 6838986 | Notification of use of network-enabled device Network-enabled devices are configured to report changes of state to a monitoring system. The monitoring system is configured to filter each change of state to determine whether the change of state constitutes a reportable event, based on a profile associated with t... | 01/04/2005 |
| 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 or gas detectors. The audible control module can store characteristi... | 11/09/2004 |
| 6809642 | Evacuation warning system for computer local area networks The system for which this patent applies regards the application of an emergency evacuation warning and information system for a generalized computer local area network. Utilizing the existing network for information transfer and the integrated hardware of each comp... | 10/26/2004 |
| 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 locations within the house, detecting smoke within a first smoke detecto... | 08/17/2004 |
| 6759956 | Bi-directional wireless detection system A system is described for detecting at least one event of interest. The system comprises a detector, a programmable controller, and a network. Upon detection of an event of interest, the detector communicates that information to the programmable controller through t... | 07/06/2004 |
| 6741173 | Distributed alarm system The present invention generally is directed to an alarm device that includes a network interface configured to receive an alarm control signal, an alarm interface for issuing an alarm to a target, and a processing unit which, upon receiving the alarm control signal,... | 05/25/2004 |
| 6727815 | Fire alarm system A fire alarm system may comprise a control center, a wired communication pathway connected to the control center, and a relay station having a receiver and a signal evaluation circuit connected to the communication pathway. First decentralized alarm boxes may be wir... | 04/27/2004 |
