Class / Patent application number | Description | Number of patent applications / Date published |
340539300 | Including power saving | 24 |
20080238658 | Radio communication system - There is provided a radio communication system including a first transceiver equipped with an antenna circuit and a transmitting-receiving unit and for transmitting a data signal by an electromagnetic wave, and a second transceiver equipped with an antenna circuit, a transmitting-receiving unit, a memory unit for storing the data signal, a display unit having display memory property, and a power source unit for obtaining an operation voltage for each unit from the electromagnetic wave. The first transceiver relatively varies the transmission output of the data signal to a high level or a low level, and the second transceiver receives the data signal and stores the data signal in the memory unit when the level of the transmission output of the data signal is low, and sends the data signal from the memory unit to the display unit when the level of the transmission output of the data signal is high. | 10-02-2008 |
20080284585 | SYSTEM AND METHOD FOR COMMUNICATING POWER SYSTEM INFORMATION THROUGH A RADIO FREQUENCY DEVICE - A system for communicating information between a detection device and a wireless device is provided. The system generally includes a detection device adapted to monitor a condition related to a power system. A radio interface unit is in communication with the detection device via a communication member. A wireless device is further provided which is in radio communication with the radio interface unit such that the detection device communicates information to the wireless device through a radio interface unit. The system's components are further adapted to endure harsh conditions (e.g., prolonged exposure to water). | 11-20-2008 |
20080291009 | Industrial field device with reduced power consumption - A field device for use in monitoring or controlling an industrial process includes two wire process control loop electrical connections. Digital communications monitoring circuitry coupled to the electrical connections and is configured to control power to the field device electrical circuitry in response to a digital signal on the two wire process control loop. | 11-27-2008 |
20080303654 | MEASURING CONDITIONS WITHIN A WIRELESS SENSOR SYSTEM - A low cost, robust, wireless sensor that provides an extended period of operability without maintenance is described. The wireless sensors are configured to communicate with a base unit or repeater. When the sensor unit detects an anomalous ambient condition (e.g., smoke, fire, water, etc.) the sensor communicates with the base unit and provides data regarding the anomalous condition. The sensor unit receives instructions to change operating parameters and/or control external devices. | 12-11-2008 |
20080309480 | OPERATING METHOD OF WIRELESS SENSOR NETWORKS CONSIDERING ENERGY EFFICIENCY - Provided is a wireless sensor network operating method considering energy efficiency. The method for operating a wireless sensor network including clusters of sensor nodes includes: selecting a cluster head based on residual energy amounts of the sensor nodes by increasing a probability that a sensor node with a greater amount of residual energy than the others is selected as a cluster head; transmitting an advertisement message from the selected cluster head to the sensor nodes to form a cluster; and transmitting sensing data acquired in each sensor node to the cluster head. Accordingly, this method can extend lifespan of sensor nodes by not transmitting/receiving data on residual energy amounts and positions between sensor nodes, and increase the entire lifespan of a wireless sensor network by reducing a probability that a sensor node having a relatively small residual energy amount is selected as a cluster head consuming much energy. | 12-18-2008 |
20090040039 | WIRELESS SENSOR AND METHOD OF CONTROLLING A WIRELESS SENSOR - A wireless sensor for a wireless sensor network includes a sensor unit performing sensing to sense environment and/or circumstance, first routing to send first sensing information to a server according to routing information, and second routing to send second sensing information from another wireless sensor to the server according to the routing information, when being supplied with power from a power source, a timer including a capacitor to be charged by the power and performs a time limit operation due to self-discharge thereof, a first control switch controlling power supplying to the timer to make the timer perform the time limit operation at a set time, a rectifier converting a radio signal from the another wireless sensor into power, and a second control switch starting power supplying to the sensor unit, upon receiving the control signal of the rectifier during the time limit operation. | 02-12-2009 |
20090072964 | REMOTE SHOCK SENSING AND NOTIFICATION SYSTEM - A low-power shock sensing system includes at least one shock sensor physically coupled to a chemical storage tank to be monitored for impacts, and an RF transmitter which is in a low-power idle state in the absence of a triggering signal. The system includes interface circuitry including or activated by the shock sensor, wherein an output of the interface circuitry is coupled to an input of the RF transmitter. The interface circuitry triggers the RF transmitter with the triggering signal to transmit an alarm message to at least one remote location when the sensor senses a shock greater than a predetermined threshold. In one embodiment the shock sensor is a shock switch which provides an open and a closed state, the open state being a low power idle state. | 03-19-2009 |
20090096604 | WIRELESS SENSOR INTERFACE WITH MOBILE TERMINAL SATELLITE MODEM AND GLOBAL LOCATION SYSTEM - A system and method for implementing a low-power local-area wireless network for use with a mobile terminal satellite modem. This low-power local-area wireless network enables sensors on an asset to wirelessly transmit sensor data to a mobile terminal affixed on the asset. The mobile terminal reports the sensor data along with asset position information to a centralized facility via a communications satellite. | 04-16-2009 |
20090201146 | REMOTE ACTIVITY DETECTION OR INTRUSION MONITORING SYSTEM - The system contains a motion sensor. In one embodiment a clock is in communication with the motion sensor. A processor is in communication with the motion sensor and the clock. The processor records a volume of motion sensed by the motion sensor as a function of time received in communications from the clock. An output device has a plurality of output signals. A plurality of threshold values stored in a memory is correlated with the output signals. A comparator is in communication with the output device, the memory, and the processor. The comparator compares the processor recordings to the threshold values stored in memory and initiates one of the plurality of output signals when the processor recordings exceed at least one of the threshold values. In another embodiment there is provided a system for detecting disturbance of a fence, comprising a plurality of motion sensor modules, each motion sensor module comprising a processor in communication with the motion sensors for distinguishing between a benign motion event and a fence disturbance event, and a wireless transmitter in communication with the micro-processor for transmitting signals when a possible fence disturbance event is detected; and a receiver at a command center for processing signals from the wireless transmitter and for signaling a possible fence disturbance event. | 08-13-2009 |
20090251309 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND PROGRAM - A wireless communication apparatus according to the present invention includes a wireless communication transmitting circuit and a wireless communication receiving circuit that perform communication with another apparatus connected through a wireless communication network; a power situation acquiring unit that acquires a power situation of the wireless communication apparatus; and a wireless power transmitting circuit that wirelessly supplies power to another apparatus in accordance with a power supply request from another apparatus connected through the wireless communication network, when the power situation of the wireless communication apparatus satisfies a predetermined condition. | 10-08-2009 |
20090284369 | TRANSMIT POWER CONTROL FOR A WIRELESS CHARGING SYSTEM - Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmit antenna to create a coupling-mode region within a near field of the transmit antenna. A receive antenna placed within the coupling-mode region resonates at or near the resonant frequency. The receive antenna extracts energy from a coupling between the two antennas. A load sensing circuit coupled to an amplifier driving the transmit antenna can detect a change in power consumed by the amplifier in response to the energy extracted by the receive antenna. The transmit antenna adjusts to a high-power charging mode when one or more receivers are present in the coupling-mode region and adjusts to a low-power beacon mode when there are no receivers in the coupling-mode region. | 11-19-2009 |
20090289784 | ALARM SYSTEM FOR MONITORING AT RURAL LOCATIONS - A system for monitoring and reporting of alarm events occurring in a monitored system includes a power supply, a switch module, an alarm interface, an event message module and a system controller wherein the switch module provides active power to the event message module, the wireless communication module and the system controller only when an alarm event is detected. | 11-26-2009 |
20100001855 | ENERGY-CONSERVING TRIGGERED ID SYSTEM AND METHOD - An energy-conserving triggered ID system, comprising: a reading assembly having a normally non-activated state and having a triggered subassembly configurable to activate the reading assembly; and a mobile assembly having no power source and having a triggering subassembly configurable to activate the triggered subassembly when the mobile assembly is located within a triggering range, wherein the reading assembly is operable to transfer power to the mobile assembly and wherein data transfer is effected between the mobile assembly and the reading assembly within a data transfer range. | 01-07-2010 |
20100271199 | Autonomous Sensing Module, a System and a Method of Long-Term Condition Monitoring of Structures - A system and a method of long-term condition monitoring of structures are based on use of autonomous sensing modules, centers for storing and processing data and software for data analysis. An autonomous sensing module contains a set of sensors for measurements of parameters related to the condition of a monitored structure, a non-volatile memory, a wireless data transfer unit, a controller, a clock circuit, a battery, an energy harvesting device and a power management unit. The autonomous sensing module provides a very long-term (40 years or more) functionality and reliability due to both use of at least near hermetic packages for the controller, the non-volatile memory, the battery, the clock circuit and the power management unit and choosing the duration of periods when the sensing module works in active mode in such a way that the average energy consumed by the autonomous sensing module is fully compensated by the average energy harvested by the energy harvesting device. | 10-28-2010 |
20100277306 | WIRELESS OCCUPANCY SENSING WITH ACCESSIBLE LOCATION POWER SWITCHING - A system including an accessible electrical box; a wireless receiver to receive a wireless signal from an occupancy sensor; a power switch to control power to a load; and a controller to control the power switch in response to the wireless signal. The wireless receiver, controller, and power switch are included in the accessible electrical box. | 11-04-2010 |
20100302028 | POWER MANAGEMENT OF SENSORS WITHIN A MOBILE DEVICE - Apparatuses and methods are provided for managing power consumption of a plurality of sensors within a mobile device. A method may include receiving a request from a sensor client regarding a sensor, determining whether the sensor client requested registration/deregistration, controlling a power supply and an operational mode of the sensor, based upon the registration/deregistration request, for reducing power consumption of the sensor, determining whether the sensor client provided a start/stop request for data from the sensor, and controlling power to the sensor, a device/driver configuration, and an operational mode of the sensor, based upon the start/stop request for data, for reducing the power consumption of the sensor. An apparatus may include a processor, a power supply coupled to the processor, a sensor coupled to the power supply, and a memory coupled to the processor, wherein the memory comprises instructions for causing the processor to execute the aforementioned method. | 12-02-2010 |
20110128144 | SYSTEM AND METHOD OF PROVIDING REAL-TIME SITE SPECIFIC INFORMATION - A weather alert manager is used to provide real-time, site specific information to a user regarding weather and possibly other hazards. The weather alert manager compares meteorological data, a user profile including information on points of interest to the user, and geographical data to determine if weather will impact one or more of the user's points of interest. The user's points of interest include at least one mobile point of interest, which periodically transmits its location. The weather alert manager transmits a user alert message if one is needed, and a remote receiver notifies the user that a message has been received. | 06-02-2011 |
20110260854 | POWER SUPPLY HAVING A WIRELESS TRANSMITTER - A power supply having a wireless transmitter includes an input receiving a first voltage from a power source, a power converter operable to convert the first voltage to a second voltage, and an output providing the second voltage to a load. A communication module is operable to receive a data signal from the load via a wired connection. A wireless transmitter is operable to transmit a wireless signal to a receiver in response to the received data signal such that the load is operable to communicate wirelessly with the receiver. A housing forms an enclosure around the power converter, the communication module, and the wireless transmitter. | 10-27-2011 |
20110298610 | COMPRESSING DATA IN A WIRELESS NETWORK - A distinguished node is dynamically selected from a subset of nodes in a wireless network. Data samples from the subset of nodes are received in view of the distinguished node status. At least one estimate is generated from the data samples and the data samples are compressed conditioned on the estimate. | 12-08-2011 |
20120007733 | METHOD OPERATING WIRELESS DEVICE ACCORDING TO POWER STATE - A method of operating a wireless memory device is provided. In the method, the wireless memory device detects the power state of a power supply source in response to a power measurement command received from a host and controls data transmission/reception based on the measured power state. | 01-12-2012 |
20120133505 | NOTIFICATION SYSTEM FOR TIMED POWER SUPPLY - The present invention is to provide a notification system for timed power supply, which includes a timed power supply device and a wireless notification device. The timed power supply device is able to receive a set time inputted by a user and stores the set time into a memory module, and then starts timing, providing power supply and generating an elapsed time, respectively. When the timed power supply device determines that the difference between the elapsed time and the set time reaches a threshold value, the timed power supply device issues a notification signal through a wireless transmitter module to the wireless notification device carried by the user, so as to ensure that the user will be notified, via an alert signal generated by the wireless notification device according to the notification signal, that the set time is coming to an end. | 05-31-2012 |
20120161958 | POWER MANAGEMENT IN WIRELESS TRACKING DEVICE OPERATING WITH RESTRICTED POWER SOURCE - A wireless tracking device operating in at least two modes to reduce power consumption and extend the operable period of the wireless tracking device. In an active mode, the wireless tracking device samples sensor signals at a higher resolution and may also actively communicate with a remote device via wireless connection. In a hibernation mode, most of the components or modules in the wireless tracking device are shut down to reduce power consumption. The wireless tracking device may switch to the active mode when a predetermine event is detected. | 06-28-2012 |
20140184406 | REMOTE DEVICE CONTROL AND ENERGY MONITORING BY ANALYZING AND APPLYING RULES - Techniques are described for providing remote device (e.g., thermostat, lighting, appliance, etc.) control and/or energy monitoring. A system monitors sensor data captured by one or more sensors that sense attributes relevant to user presence at one or more monitored properties and status of one or more energy consuming devices associated with the one or more monitored properties. The system analyzes the monitored sensor data and the monitored device status with respect to a set of one or more rules and performs an operation related to controlling the one or more energy consuming devices based on the analysis of the monitored sensor data and the monitored device status with respect to the set of one or more rules. | 07-03-2014 |
20160203702 | Wireless Surveillance System Having Obviated the Need for Battery Replacement and Method for Controlling Wireless Device | 07-14-2016 |