| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 340533000 | Wired | 54 |
| 20080238654 | Optical and Copper Transceiver Identifier - A hand-held-transceiver identifier device includes a processor device contained in a housing. A port is contained in the housing to receive a transceiver. A display is contained in the housing. Upon insertion of the transceiver in the port, the device interrogates the transceiver to obtain specification information. A computer-implemented method of identifying a transceiver device detects an insertion of the transceiver device, interrogates the transceiver device to obtain specification information, and detects a removal of the transceiver device. | 10-02-2008 |
| 20090109018 | Detection device, particularly for realizing a protection system - The invention relates to a detection device, particularly for realizing a protection system via which, for example, motor-driven injury-relevant systems can be operated in a controlled manner. The aim of the invention is to provide solutions via which advantages result with regard to the detection of injury-relevant situations, particularly the presence of limbs in danger-relevant areas. To this end, according to a first aspect of the invention, a detection system is provided, particularly for realizing a protection system via which, for example, motor-driven injury-relevant systems can be operated in a protected manner, comprising a receiving device for detecting the presence of an object, particularly of a living thing, in an observation area. This detection device comprises a detection element for recording a received event caused by the action of a modulated electrical field. This system is characterized by a launching device that has an emitting element for emitting the modulated electrical field, the receiving device and the transmitting device being configured in such a manner that, based on the transmission behavior of the observation area located, at least in sections, between the receiving element and the emitting element, the presence of the object, particularly the living thing, is detected in the observation area. | 04-30-2009 |
| 20090315699 | HOME SECURITY SYSTEM USING AN AD-HOC WIRELESS MESH AND METHOD THEREOF - An automation and security system includes a plurality of communication nodes configuring one or more ad-hoc mesh networks. The communication nodes are operatively coupled with at least one of an automation device and/or a security device. The automation and/or the security device senses the occurrence of a situation and communicates a situation data of the situation in real-time to the communication nodes. The situation data is then dynamically routed over the ad-hoc mesh network to a central monitoring station which then automatically processes the situation data to provide a real-time notification to the end user of the system. | 12-24-2009 |
| 20100007484 | VOICE ALARM AND A CONTROL APPARATUS FOR CONSTRUCTION SITE - The present invention relates to a voice alarm and a control apparatus for construction site. A voice alarm apparatus in accordance with one aspect of the present invention comprises a sensing unit for generating and transmitting a sensing signal to a processing unit upon detecting the presence of a man in a predetermined area; a wireless communication unit for receiving sound data or user's voice from the outside; a storing unit for storing the sound data or the user's voice from the wireless communication unit; a processing unit for transmitting the sound data or the user's voice stored in the storing unit to an output unit in case of receiving the sensing signal from the sensing unit; and an output unit for outputting the sound by transforming the sound data. | 01-14-2010 |
| 20100013627 | SYSTEM AND METHOD FOR MONITORING INFRASTRUCTURE - A system for generating a threat alert in an infrastructure component is provided. The system includes at least three acoustic sensors disposed at a pre-determined spacing apart from each other on the infrastructure component, wherein each of the sensors is configured to detect a signal corresponding to an outcome that causes damage to the infrastructure component. The system also includes a processing circuitry coupled to each of the at least three acoustic sensors, wherein the processing circuitry configured to filter noise from the signal and generate a threat signal. The system further includes a monitoring center configured to generate a shock alarm in response to the threat signal. | 01-21-2010 |
| 20100194557 | SWITCH - A portable switch enables an operator to open and close an electrical conductive pathway, such as a circuit, from a remote location. The tool may comprise a handle assembly selectively attached to an associated object. The handle assembly has a first member, which has a first position and a second position. A base clamping assembly is selectively attached to an associated open point, such as, but not limited to, an underground switch. A cable has a first end and a second end. The first end is operatively connected to the base clamping system. The second end is connected to an insulating portion. The insulating portion may be interposed between the base clamping assembly and the handle assembly. | 08-05-2010 |
| 20100238020 | Embedded Power Cable Sensor Array - Semiconductor sensor chips are assembled with semiconductor communication chips to form sensor nodes which are wired together and placed in a tube preform which is sealed to form a tube containing an array of sensor nodes. The tube, resembling a wire in appearance, can then be assembled with power conductors to form a power delivery cable to allow monitoring of conditions within the cable at a plurality of spaced locations along the length of the cable. By monitoring conditions at spaced locations within the cable during use, the cable can be operated near or at its actual current carrying capacity which may be altered by ambient conditions such as the shape of the cable, strain applied thereto, damage, or whether the cable is partially wound on a spool or reel that prevents dissipation of heat due to ohmic losses in the cable; thus allowing management of risk of failure of the cable without a requirement for additional, generally unused current carrying capacity in the design of the cable. | 09-23-2010 |
| 20100295671 | DATA PORT AND TRANSMISSION DEVICE - Among other things, there are disclosed devices and methods for monitoring sensors in a home, office or other location and transmit low-bandwidth signals concerning those sensors along existing telephone wires not connected to telephone service. A hub device is electronically connected to one or more sensors at an end user's location, and is also electronically connected to the unused telephone wires. When a sensor transmits a signal to the hub, such as a smoke detection or other problem, the hub creates a low-bandwidth signal and transmits it along the unused telephone wires. A converter remote from the end user's location receives the signal, converts it into data or other type of message, and sends the message to the end user or other service for action. | 11-25-2010 |
| 20100328061 | CRIMES AND DISASTERS PREVENTING SYSTEM - The present invention relates to an emergency signal transmitting and receiving device of a crime and disaster preventing system. The present invention also relates to a device for sensing a state of a cable. The present invention has the advantages that an appropriate action to the emergency state can be achieved. The first embodiment of the present invention can be achieved by a cable sensor, a database and an interpreting device etc. of the emergency state. The second embodiment of the present invention can also be achieved by a simple structure of a permanent magnet, a transformer and an interpreting device etc. of the emergency state. | 12-30-2010 |
| 20110063104 | ELECTRONIC DEVICE, INCLUDING HANDHELD ELECTRONIC DEVICE WITH INTELLIGENT HOLSTER - A handheld electronic device that includes a first battery and a holster that includes a second battery and a charging apparatus. When the handheld electronic device and the holster are electrically connected together, the charging apparatus charges the first battery on the handheld electronic device from the second battery on the holster when the first battery charge has been depleted to a given level and the second battery charge is above a second given level. Alternatively, if the first battery charge is above a third given level the first battery charges the second battery if the second battery is not fully charged. The holster further includes a microcontroller that communicates with a microprocessor on the handheld electronic device to identify alerts and activate a notification device powered by the second battery on the holster. | 03-17-2011 |
| 20110080280 | CONFIGURABLE NOTIFICATION DEVICE - A notification device includes a processing module configured to determine a communication mode capability of an alarm panel. The processing module communicates with the control using the determined communication mode. The notification device also includes an output module that is in electrical communication with the processing module. The output module is configured to produce an output signal in response to a signal communicated by the alarm panel. | 04-07-2011 |
| 20110267189 | SYSTEM AND METHOD FOR NETWORK-BASED JUMP AREA MONITERING - A networked jump safety system and method for monitoring a jump area is described. The system comprises a safety analysis station connected via a network to least one monitoring station. The output of a sensor is analyzed at the safety analysis station to determine if it is safe for a rider to enter a jump area. A status corresponding to the determination is transmitted via the network from the safety analysis station to a light emitting output. | 11-03-2011 |
| 20110273284 | EMERGENCY NOTIFICATION DEVICE AND SYSTEM - An audio warning monitoring device, system and method including an audio detector, one or more audio screens to determine if monitored sound is an alarm, a processor or logic device to potentially analyze sound data and then instruct a transmitter to send a message with the monitoring device identification and signals representing sound detected by the audio detector to a server. The computer server analyzes the message and authenticates the audio detector, looks up user data associated with the detector, and contacts a user from previously stored user data in order to notify of the alert and then relay the audio signals in an audio file.At the user's option, the server may contact a staffed or automated monitoring center. Here a human operator may listen to the signals in the audio file and take appropriate action, such as calling the location of the alarm for verification or contacting a professional first responder(s). | 11-10-2011 |
| 20120007732 | Rotary Adjustment For Dual Switch Assembly - The present disclosure provides for systems and methods for fabricating sensing and/or control device assemblies, e.g., a dual pressure switch sensing and/or control device, a dual temperature switch sensing and/or control device or the like. More particularly, the present disclosure provides for systems and methods for fabricating sensing and/or control device assemblies (e.g., dual switch sensing and/or control device assemblies) with adjustment features and/or functionalities for switch calibration and/or adjustment. In one embodiment, the present disclosure provides for systems and methods for fabricating sensing and/or control device assemblies (e.g., dual switch sensing and/or control device assemblies) with rotary adjustment features/functionalities wherein the switches of the sensing device may be calibrated or adjusted via the rotary adjustment features/functionalities. | 01-12-2012 |
| 20120086570 | Digital telephony distressed sound detection - A system and method for monitoring for a distressed sound is disclosed. The system comprises a noise detection module configured to monitor ambient noise through a microphone on a digital telephony device operating in an idle state and determine an ambient noise level. A sound processing module is configured to process sounds received from the microphone that have an amplitude a selected amount greater than an amplitude of the ambient noise and determine if the processed sounds match a predetermined statistical model of a distressed sound. An assistance request module is configured to send a request for assistance via the digital telephony device for processed sounds that match the predetermined statistical model of the distressed sound. | 04-12-2012 |
| 20120218100 | Perimeter Security System - A perimeter security system includes a barrier and a series of sensors. The sensors are connected together via connection cables that include pin-type engagement structure for connection with the sensors. The sensors may include a graduated sensory alert that changes as a person or object approaches. The pin-type connection arrangement includes a receiver having a passage for receiving an insert. The insert and a first end of the cable have matching cross-sections that enable the cable to be inserted within the receiver in a single orientation. A series of pins extend from the cable, and a pin contact arrangement is associated with the receiver. The insert may be one of at least a pair of differently configured inserts, each of which has a cross-section that matches only one end of the cable. Each insert includes an end wall, which includes a series of openings through which the pins extend. | 08-30-2012 |
| 20150022346 | COMPONENT INTERFACING IN HAZARD SAFETY SYSTEMS - Systems and methods for interfacing a hazard detection device with a control panel system via a dongle are provided. The dongle may be configured to alternate between drawing first and second amounts of power from the control panel system in response to the hazard detection device alternating between operating in a normal mode when no hazard is detected and an alarm mode when a hazard is detected. The hazard detection device may operate independently of any characteristics of the control panel system. For example, the hazard detection device may operate without drawing any power from the control panel system. Therefore, the dongle may allow for various types of hazard detection devices to interface with a common two-line power control system. | 01-22-2015 |
| 20150054645 | Methods, Systems, and Products for Security Services - Security systems notify of alarms. Two separate communications paths are established from an alarm controller. One of the communications paths is selected based on performance, cost, or urgency. | 02-26-2015 |
| 20160071380 | Capacitive and Conductive Sensing Illuminating Cable - This invention is the design for a sensing circuit. The above detailed description defines the two main sensing techniques: Capacitive and Conductive sensing. The sensors used can be placed along the surface or under the surface, which in many cases will be a wire or cable in as many places as desired by the user or manufacturer. Once a sensor is turned on, it will complete the circuit and allow for electricity to flow to the illuminating, or communicating part of the invention. This will allow users to see the cable's path and direction allowing for easier troubleshoot and maintenance. | 03-10-2016 |
| 20160148477 | THEFT DETERRENT DEVICE AND METHOD OF USE - A portable theft deterrent device is disclosed. The theft deterrent device comprises a lock detection mechanism. The lock detection mechanism includes a plurality of connectors and an opening therethrough. The lock detection mechanism includes a keypad. The keypad enables and disables the lock detection mechanism when a correct key code is entered. The lock detection mechanism includes a first active circuit therein coupled to the plurality of connectors. Wherein when the lock detection mechanism is coupled to an electrical path via at least one connector of the plurality of connectors and the first active circuit detects an interruption in the electrical flow in the electrical path, the lock detection mechanism provides an alert. | 05-26-2016 |
| 20160168994 | ROCK WALL CLOSURE DETECTION DEVICE | 06-16-2016 |
| 340534000 | Coded message | 1 |
| 20080218333 | Mode Selectable field transmitter - A selectable mode field transmitter is configurable to operate in one of a plurality of operating modes having different combinations of function, performance, and power consumption. The selectable mode field transmitter includes a housing, a sensor located within the housing, and transmitter circuitry for transmitting data provided by the sensor to a receiver external to the housing. The transmitter circuitry includes a controller that electrically configures the transmitter circuitry to one of a plurality of operational modes in response to mode selection data received from a source external to the housing. Therefore, the selectable mode field transmitter can be configured based on the needs or requirements of a particular application. | 09-11-2008 |
| 340538000 | Combined with power line | 32 |
| 20080211663 | POWER LINE AUDIO COMMUNICATION SYSTEM - A communication system associated with premises power distribution lines can be used to transmit audio data via the distribution lines. First and second transceivers can communicate bi-directionally over the distribution lines to transmit the audio data. The audio data can be provided by a computer coupled to one of the transceivers. One or more portions of the premises power distribution lines can be used as radiators to wirelessly transmit the audio data to one or more devices. | 09-04-2008 |
| 20080224851 | Systems And Devices For Broadband Communication With An Alarm Panel - A communications system for an alarm panel including: an alarm panel adaptor in operable communication with the alarm panel generating analog alarm signals; a first powerline communications device in operable communication with a the alarm panel adaptor converting the analog alarm signals to powerline alarm signals; a second powerline communications device receiving the powerline alarm signals over an electrical grid and converting the powerline alarm signals to internet protocol alarm signals; and a broadband connection in operable communication with the second powerline communications device for transmitting the internet protocol alarm signals to a remote central control station. | 09-18-2008 |
| 20080238655 | Arrangements for integrated circuit power management - A configurable power control system is disclosed. The power control system can include a control module, an enable/disable module coupled to a power rail (i.e. an internal power line) to enable and disable power to the power rail. The system can also include a sequencer module coupled to the first and a second power rail to sequence power to the power rail(s). The system can also include a fault detect module to detect system parameters. Additionally, the system can include a memory module to store user input and can store detected faults to be utilized by the control module and other modules to control interrelationships between the enable module, the sequencer module, the fault detect module, power in, and power provided via the power rails. | 10-02-2008 |
| 20080291005 | TERMINATING DEVICE FOR INSTALLATION AT A TERMINATION OF A POWER LINE USABLE FOR POWER LINE COMMUNICATION - A terminating device enables power line communication to be performed while suppressing degradation of the communication quality without decreasing the communication efficiency. The terminating device includes power supply plugs, a terminating circuit, a changeover switch, and power jack terminals, which are housed in an adapter case. The terminating circuit has an impedance corresponding to the impedance between power lines in the used frequency band of power line communication and is connected or disconnected between the power supply plugs by the changeover switch. | 11-27-2008 |
| 20090072963 | Apparatuses and Methods for Driving a Doorbell System Peripheral Load at a Higher Current - A peripheral load driver that utilizes the power, wiring, and primary load of a conventional doorbell system to drive a doorbell system peripheral load at a higher current without risk of inadvertently energizing the primary load of the conventional doorbell system. The peripheral load driver comprising a power converting means for converting power extracted from the conventional doorbell system from a higher-voltage-at-a-lower-current to a lower-voltage-at-a-higher current wherein the higher-voltage-at-a-lower-current is insufficient to energize the primary load of the conventional doorbell system and the lower-voltage-at-a-higher-current is compatible with the doorbell system peripheral load. | 03-19-2009 |
| 20090079558 | MIDSPAN POWERING WITHOUT THE USE OF DATA TRANSFORMERS IN A POWER OVER ETHERNET APPLICATION - A midspan power sourcing equipment (PSE) for operation with power over Ethernet (PoE). The midspan PSE provides powering over wire pairs that are also used for data communication. To reduce costs by the midspan manufacturer, the midspans can be designed without the use of data transformers. Rather, midspans can include transmit/receive couplers that have blocking capacitors and divider trees for the insertion of power. | 03-26-2009 |
| 20090134996 | Power Line Communication System and Method of Operating the Same - A system for operating a power line communications system is provided. One embodiment is comprised of a plurality of network elements, which may take the form of repeaters, bypass devices, backhaul devices, wireless backhaul devices, enhanced bypass device, communication interface devices and others. In one embodiment, two groups of network elements in the same electrical distribution system are isolated except selected communication link. The network elements respond to requests for data and send out of limit notifications to a remote computer. | 05-28-2009 |
| 20090315700 | Dual Transformer Communication Interface - A power line communication device comprises a plurality of transformers in series. These transformers are used to increase the voltage of a digitally encoded signal in a stepwise fashion prior to being coupled into a power line. While a transmit path includes at least a first transformer and a second transformer in series, a receive path may include only one of these two transformers. For example a receive path may include only the first transformer, or include the first transformer and a third transformer. The net ratio of voltage increase and decrease may be different in the transmit and receive paths. | 12-24-2009 |
| 20100033319 | NOTIFICATION SYSTEM AND METHOD THEREOF - A notification system and method of visual notification of different types of events by flashing different colors is provided, wherein the notification system includes a master controller and a notification device. The master controller is configured to communicate at least one signal. The notification device includes an enclosure accepting a plurality of conductors providing both signaling and electrical power to the notification device, and at least one strobe drive circuit configured to supply an electrical signal for periodically flashing at least one strobe. The notification device further includes a strobe system configured to flash at least one strobe, such that the strobe system flashes one of at least two different colors, and a control logic configured to determine which color of the at least two different colors to flash at least one strobe based upon the signal received from at least one of the plurality of conductors. | 02-11-2010 |
| 20100109862 | System, Device and Method for Communicating over Power Lines - A system, method and device for communicating over a power line are provided. In one embodiment, the device includes a controller, a first port in communication with the controller and configured to communicate over a power line via any of a plurality of frequency bands, and a second port in communication with the controller and configured to transmit and receive broadband communications. The first port may be configured to select one of the plurality of frequency bands for communications and the controller configured to provide routing functions for data received via the second port to be transmitted via the first port. The second port may comprise a wireless modem or a modem configured to communicate over a power line via broadband communications. The broadband communications may use a frequency band having a bandwidth greater than at least five of the plurality of frequency bands. The device may communicate on multiple frequency bands concurrently and may select or change frequency bands and/or the modulation scheme based on channel conditions or operational parameters. | 05-06-2010 |
| 20110018704 | System, Device and Method for Providing Power Line Communications - A system, method and device for providing a power line communication system via an ad hoc network protocol is provided. In one embodiment, the method includes transmitting and receiving Alive Notifications via a power line. Each Alive Notification may include data identifying an interface of the transmitting power line node and information identifying an interface of one or more other power line nodes from which the transmitting node has previously received an Alive Notification and reliability information all such nodes. The method may further include regularly transmitting and receiving topology information and routing information via the power line and updating topology and routing information in memory. The method may further include selecting a route to a network for transmission of data based on the routing information stored in memory, wherein the selected route includes the fewest hops and satisfies reliability requirements. The method may further include identifying a first power line node that comprises the first hop of the selected route and transmitting data to the first power line node. | 01-27-2011 |
| 20110140880 | Power delivery with power source identification - A system and method is described in which energy source identification information is impressed upon electrical conductors employed in an electrical energy distribution network. The present invention negates the concept that electrical energy in a power distribution system is or should be treated as a fungible quantity. The present invention provides a mechanism by which end-users are rendered capable of determining and requesting that the electrical energy being provided to them is derived from renewable resources in general or from specific renewable resources. The present invention also enhances the capabilities for monitoring and controlling the production of greenhouse gases, particularly carbon dioxide. | 06-16-2011 |
| 20110316690 | System and Method for Identifying Electrical Equipment Using Wireless Receivers - By utilizing a transmitter that plugs into a power socket of a piece of electrical equipment, that equipment may be locatable using a specialized power source that interacts with the transmitter. The specialized power source sends a command signal across a power cable and causes the transmitter to send a response signal. The response signal is received by one or more receivers, and the position of the equipment within its corresponding cabinet/rack can be determined. The response signal can be sent using a number of different techniques, such as ultrasonic or infrared. | 12-29-2011 |
| 20120139719 | Safety warning system and method - An appliance warning system comprises a floor pad which has a switch movable between an open position when no weight pressure is detected and a closed position when activated by weight pressure. A transmitter transmits a signal depending upon whether the switch is in the open or closed position. A remotely located module has a receiver for the signal from the transmitter. A control circuit is operational between a ready state before the switch is activated to the closed position and a monitoring state after the switch is activated. A warning device is activated by the control circuit when in the monitoring state when the switch has been in the open position for a preselected period of time after having been in the closed position. A reset switch resets the control circuit from the monitoring state to the ready state. | 06-07-2012 |
| 20120206257 | ALARM SYSTEM - An alarm system control center has subscribers connected to it by a two-wire line. The subscribers receive via the two-wire line both a power supply voltage and communication messages in the form of pulse trains impressed on the power supply voltage as voltage modulation. Each subscriber includes a constant current circuit which is connected to the two-wire line and which is used to charge a storage capacitor with a voltage regulator coupled to it. In order to reduce communication errors, a transformer is provided to reduce power supply voltage to an internal value which is lower than the than the power supply voltage at least by the voltage swing of the pulses of the communication messages on the two-wire line. | 08-16-2012 |
| 20120286947 | Home security system - A home security system includes a plurality of monitoring assemblies each comprising a data communication device, a light, a video camera, a transmitter, a sensor, a loudspeaker, a warning device, an identification device, a projector, an adjustment device for adjusting angles of the light, the video camera, and the projector, and a power supply; a fixed controller comprising a data communicating device and a data storage device; and a hand-held portable controller comprising a wireless communication module and an equipment set module. The fixed controller is adapted to activate the monitoring assemblies. The hand-held, portable controller is adapted to remotely activate the monitoring assemblies. | 11-15-2012 |
| 20130049951 | FIRE ALARM POWER LINE CARRIER COM-SYSTEM - A fire alarm system | 02-28-2013 |
| 20130120138 | Methods, Systems, and Products for Security Services - Methods, systems, and products are disclosed for alarm sensors in security systems. A powerline-to-Ethernet adapter interfaces with an alarm sensor and converts alternating current electrical power into direct current electrical power. Wires in a cable convey the direct current electrical power to the alarm sensor, and other wires in the cable convey Ethernet signals to the alarm sensor. The alarm sensor is electrically powered by the direct current electrical power and the Ethernet signals are received at an Ethernet interface. | 05-16-2013 |
| 20150130610 | FIRE ALARM POWER LINE CARRIER COM-SYSTEM - A fire alarm system includes a transceiver. The transceiver has: a housing; conductors for receiving power from power lines; power output conductors for transmitting the power to a local alarm; and a connector for the alarm conductor of the local alarm. The transceiver has a trigger circuit, responsive to an alarm condition. A transmitter circuit responds to the alarm condition by injecting a signal onto a power conductor, using power line carrier technology. A receiver circuit responds to a second signal, similar to the first signal, by triggering the transmitter circuit; and by triggering the local alarm. | 05-14-2015 |
| 20160098915 | SYSTEM, METHOD AND APPARATA FOR SECURE COMMUNICATIONS USING AN ELECTRICAL GRID NETWORK - A secure communications and location authorization system using a power line or a potion thereof as a side-channel that mitigates man-in-the-middle attacks on communications networks and devices connected to those networks. The system includes a power grid server associated with a substation, or curb-side distribution structure such as a transformer, an electric meter associated with a structure having electric service and able to communicate with the power grid server, a human authorization detector input device connected to the electric meter and the power grid server. The human authorization detector is able to receive an input from a user physically located at the structure and capable of communicating with the power grid server via the electric meter. The user's physical input into the device causing a request to be sent to the power grid server that then generates a location certificate for the user. Without the location certificate, access to the communications network and devices connected to those networks can be denied. | 04-07-2016 |
| 340538110 | Modulation technique | 3 |
| 20080266077 | Fault Tolerant Closed System Control Using Power Line Communication - A method, system, and computer program product are provided for communicating to a powered element in a rack system. A controller injects communication data onto power lines that provides power to a plurality of powered elements. The powered elements determine if the communication data transmitted via the power lines should be used for configuration using an address embedded within the communication data. The powered elements compare an embedded target address within the communication data to the address of the particular element. If there is a match between the addresses, the corresponding powered element processes the communication data to configure the powered element. As a result, data may be communicated over the power lines thereby eliminating the need for separate communication lines. Thus, the amount of cables required to interconnect the powered elements of the distributed data processing system may be reduced by eliminating the communication lines from the system configuration. | 10-30-2008 |
| 20080272904 | Signalling Method - An electrical signalling system comprises a modulator arranged to accept information and encode that information in an alternating signal containing repeated rising and falling edges, the encoding being by way of the time between consecutive rising and falling edges a transmission path for the signal from the modulator to a demodulator, wherein the modulator is arranged to precede a data signal with a reference signal of a known time, and the demodulator is arranged to detect that reference signal and calculate a calibration error therefrom. The demodulator can record the calibration error and subtract this from subsequent data signals. The demodulator can alternatively (or in addition) adjust the threshold for future signals, on the basis of the calibration error. This is particularly suited to inductive transmission paths such as a three-phase electrical supply cable leading to downhole sensors in the oil and gas extraction industries. | 11-06-2008 |
| 20090243838 | SECURITY SYSTEM - There is provided a security system for an electrical device connected to a mains electricity supply, the security system comprising a confirmation transmitter interposed between the electrical device and the mains electricity supply. The transmitter is arranged to send a confirmation message via the mains supply to a control unit that is operatively connected to the mains supply. The control unit is arranged to activate an alarm if the control unit does not receive the confirmation message. | 10-01-2009 |
| 340538120 | Noise reduction (e.g., filtering) | 2 |
| 20090058633 | ANC NOTCH FILTER ADAPTATION SYSTEM AND METHOD FOR HANDLING ROAD NOISE PEAK SHIFTS IN A MOTOR VEHICLE - A notch filter adaptation system for use with an active noise control system of a motor vehicle has a parameters determination module receiving data from a bus of a vehicle and employing the data to determine one or more parameters for a notch filter. The data can include vehicle type, tire diameter, tire cavity, and/or ambient temperature. The parameters can include one or more notch filter peak frequency values, one or more notch filter Q values, and/or modifications of predetermined peak frequency values and/or Q values. An active noise control module can employ the parameters to generate opposite phase noise in the vehicle according to one or more notch filters having frequency bands at least in part specified by the parameters. | 03-05-2009 |
| 20090140849 | Inbound interference reduction in a broadband powerline system - Disclosed is a method and apparatus for reducing inbound interference in a broadband powerline communication system. Data modulated on first and second carrier frequencies is received via respective first and second lines of the powerline system. A characteristic of at least one of the carrier signals (e.g., phase or amplitude) is adjusted at the receiver in order to reduce the effects of inbound interference on the transmission system. The adjustment parameters may be determined by adjusting the parameters, during a period of no data transmission, until the output of a differential receiver is zero. | 06-04-2009 |
| 340538150 | Bi-directional (e.g., with transceiver) | 2 |
| 20160036662 | Communication Visualization System - A communication visualization system includes a wireless power-feeding device for transmitting electromagnetic energy in a wireless manner and a communication visualization device for notifying that a LAN cable connected to an information communication apparatus is performing information communication. The communication visualization device includes an antenna part for receiving the electromagnetic energy transmitted from the wireless power-feeding device, a rectifier circuit for rectifying the electromagnetic energy received by the antenna part to generate a DC voltage, an amplifier circuit for amplifying a communication signal transferred to the communication cable at the time of information communication by using the DC voltage generated by the rectifier circuit as operation power, a rectifier circuit for converting the amplified communication signal into a DC voltage, and a light-emitting circuit for emitting light when the DC voltage after conversion is supplied. | 02-04-2016 |
| 20160112211 | SYSTEM AND METHOD FOR CONTROLLING AN ELECTRICALLY ACTUATED DEVICE - Systems and methods for powering and controlling an electrically actuated device, such as a door lock, via a structured cable, such as an Ethernet cable, are disclosed. The system may include a receiver which transmits Internet Protocol (IP) control signals and non-IP alarm trigger signals over a structured cable to a transceiver. Both types of signals may be transmitted over the structured cable without interruption, and used to control a device. The IP and non-IP signals may be transmitted over the same structured cable to provide device control for non-alarm and alarm condition device actuation, respectively. | 04-21-2016 |
| 340538160 | With inductive coupling (e.g., transformer or torroid) | 3 |
| 20080238656 | ISOLATED RESISTIVE SIGNATURE DETECTION FOR POWERED DEVICES - In one embodiment, a load connected to power sourcing equipment (PSE) compatible with a Power over Ethernet (PoE) standard is characterized to determine whether the load corresponds to a valid powered device (PD). A switching signal having a first frequency is generated on the isolated side and used to generate an electrical current through the isolated-side primary coil of a power transformer in the PSE. A first voltage measurement, corresponding to a first line-side voltage across the transformer's secondary coil, is generated on the isolated side, e.g., using an isolated-side auxiliary transformer coil. The load is characterized based on the first voltage measurement and the first frequency. To compensate for voltage offset, a second voltage measurement can be generated corresponding to a second frequency of the switching signal, where the load is then characterized based on the first and second voltage measurements and frequencies. | 10-02-2008 |
| 20080297339 | 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 couples data signals between the data device and the AC power line via the converted low voltage AC wiring circuit. An example is provided for retrofitting a door chime system to a high speed data link such as a video camera system. | 12-04-2008 |
| 20160063822 | SWITCHING DEVICE, RECEIVING DEVICE AND METHOD - A switching device, particularly a circuit breaker, is disclosed for interrupting at least one electrical circuit. The switching device has various operating information that is signaled mechanically and is captured mechanically via at least one module and made available via signaling contacts. The module is embodied such that the mechanical signaling energy is converted into electric power and this electric power is supplied to a radio module in order to send the signaled operating information via a radio message. | 03-03-2016 |
| 340538170 | With coupling plug | 2 |
| 20090015396 | Bridge system for installing electronic appliance to light source socket and bridge method thereof - A bridge system for installing electronic appliance to light source socket and a bridge method are disclosed. The system includes a light source plug, a power line communication module and a connection unit. The light source plug is electrically connected to the light source socket to perform data communication through the power lines. The power line communication module is electrically connected to the light source plug to convert AC power into DC power and perform analog-to-digital data conversion simultaneously through the power lines. The connection unit is electrically connected to the electronic appliance to provide AC or DC power and transmit converted digital data to the electronic appliance. Accordingly, there is no need to add power cables or power adapters. | 01-15-2009 |
| 20160253882 | FLEXIBLE CIRCUIT FOR PROVIDING POWER TO A PORTABLE ELECTRONIC DEVICE | 09-01-2016 |
