Abstract: The disclosed methods of low power communications facilitate high speed reception of data from an access point (AP) with low transmission latencies while remaining in power save mode as long as possible. The disclosed methods allow the client to remain in a power save state and involve creating a synchronous client frame exchange with the AP that is independent of a digital traffic indication map and the AP's beacon interval. Two methods to accomplish this goal are disclosed: one which involves sending PS Poll Frames; and one that includes fast CAM switching, both at a self tuning frequency.

Abstract: A full duplex communication system is capable of providing actual wireless transmission rates on the order of 125 Mb/s, or higher, with relatively high transmission power on the order of 0.5 to 2 watts (W) or higher, with a high signal-to-noise (S/N) ratio, a bit error rate on the order of 10?12 or lower, 99.99% availability, and with relatively simple circuit designs. A single compact and efficient, low distortion transceiver design is used based on high power (e.g., 0.5 W) monolithic millimeter wave integrated circuits (MMICs), having a compression point which accommodates high speed modems such as OC-3 and 100 Mb/s Fast Ethernet modems used in broadband networking technologies like SONET/SDH (e.g., SONET ring architectures having self-healing ring capability). By applying high power MMIC technology of conventional radar systems to wireless duplex communications, significant advantages can be realized in a fixed wireless spectrum of 18-40 GHz or wider.

Abstract: A method and apparatus for intelligent access point scanning with self-learning capability enables a wireless handset to conserve power while scanning for unlicensed mobile access.

Abstract: A communication device includes a voice data and RF integrated circuit (IC) that includes a memory module that stores a least one application as a plurality of operational instructions, the at least one application having a plurality of power modes that each correspond to one of a plurality of use characteristics. A processing module executes the plurality of operational instructions and determines a selected one of the plurality of power modes based on current use characteristics of the at least one application, and the generates a power mode signal based on the selected one of the plurality of power modes. An off-chip power management circuit receives the power mode signal and that generates a plurality of power supply signals to the voice data and RF IC based on the power mode signal.

Abstract: A method and apparatus for reducing power consumption by controlling listening periods in a wireless telecommunications device having a plurality of power-saving modes are provided. The method includes: setting a first power-saving mode and a second power-saving mode, each of the first and second power-saving modes having a power-saving mode period in which power is saved and data is not transmitted and received, and a standby period in which data is transmitted and received; detecting the standby mode periods from the first and second power-saving modes; adjusting starting periods of the first and second power-saving modes so that the detected standby mode periods of the first and second power-saving modes overlap; and controlling power according to the adjusted first and the second power-saving modes.

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a sever. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake tip and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract: A receiver circuit controls a power source of a front-end circuit and a demodulator using a first power source control signal. Upon receiving data of a plurality of receiving slots having a guard bit provided between receiving slots adjacent to each other, the first power source control signal becomes a power source ON signal before starting receiving of the data, then becomes a power source OFF signal within the guard bit, and becomes a power source OFF signal after completing the receiving of the data. The receiver circuit controls a power source of an active filter circuit using a second power source control signal, which becomes a power source OFF signal after completing the receiving of the data after becoming a power source ON signal before starting the receiving of the data.

Abstract: A receiver and method for operating a receiver, in particular of a radio network, is provided, whereby the receiver includes circuit blocks in a receive path for detecting a preamble of a received signal, and a controller for controlling a receive mode. Whereby at least some of the circuit blocks are designed to be capable of being turned on for a turn-on duration and turned off for a turn-off duration. Whereby, the controller is configured to alternately turn on at least some of the circuit blocks for the turn-on duration and off for the turn-off duration during the receive mode, wherein the turn-off duration is shorter than the preamble.

Abstract: A method of providing updated information using power control in a portable terminal device. The method includes connecting to a server periodically by supplying power at predetermined time intervals; determining whether or not updated information exists in the connected server; and according to a result of determining, selectively outputting the updated information on a predetermined basis when the updated information is determined to exist in the connected server.

Abstract: A radio communication apparatus has a battery, a transmit buffer for temporarily accumulating packets to be sent, a battery state monitoring unit for monitoring a battery state of the battery, and a traffic control unit. The traffic control unit determines a packet burst length and an interval time between the packet bursts in order to obtain charge recovery effect based on the battery state, and controls so as to take out data packets of the packet burst length from the transmit buffer for every interval time between the packet bursts of the packet burst.

Abstract: A mobile station for a CDMA communication system which comprises a transmitting section that transmits a location registration request signal to a base station, and a receiving section that receives an acknowledge signal transmitted from the base station after the location registration request signal from the transmitting section is received by the base station. A control section prohibits the power supply to the receiving section for a predetermined period of time if the acknowledge signal from the base station is not received within a predetermined period of time after the location registration request signal has been transmitted.

Abstract: A method and apparatus for sending an event from user equipment operating in a mobile network, the method comprising the steps of: monitoring whether an unrelated opportunistic event has occurred; and sending said event with said unrelated opportunistic event.

Abstract: According to one embodiment of the invention, a method comprises determining whether a non-unicast message is to be transmitted by a transmitting device, which may involve a setting a Delivery Traffic Indicator Map (DTIM) Interval value to reflect a longer periodicity than associated with a Listen Interval. After such determination, the non-unicast message may be converted into one or more unicast messages for transmission.

Abstract: In an RF tag, a mask ROM or a flash memory is used for storing data such as an ID number. Although the mask ROM can be realized at a low price, rewriting is not possible. In addition, in the flash memory, although electric rewriting is possible, production cost increases. Accordingly, it is difficult to provide an RF tag by which data rewriting is possible at a low price. An RF tag is provided with a power supply circuit having a function to generate a power supply voltage from a weak radio signal and a memory which can hold data stored in a data holding portion by the power supply voltage. With the above structure, a high-performance RF tag capable of rewriting data such as an ID number after production can be provided at a low price.

Abstract: An audio apparatus comprises a tuner for receiving broadcast waves; a digital reproducing unit; operation switches for operating the tuner and the digital reproducing unit; and a control unit for controlling the tuner and the digital reproducing unit in response to an operation of the operation means. In a first mode of operation, the control unit controls if an audio signal from the tuner is selected as a source such that the power of the digital reproducing unit is turned on, and wherein, in a second mode operation, the control unit controls if an audio signal from the tuner is selected as a source such that the power of the digital reproducing unit is turned off, alternatively if an audio signal from the digital reproducing unit is selected as a source, the power thereof is turned on.

Abstract: Techniques for implementing sleep scheduling in a distributed network environment are described. The sleep scheduling attempts to optimize routing of communication among nodes of the distributed network, while still conserving energy by allowing nodes to occasionally transition to sleep mode. The sleep scheduling is performed as a function of the number of awake neighboring nodes.

Abstract: A circuit for biasing a gallium arsenide (GaAs) power amplifier includes a reference voltage generator circuit implemented in a gallium arsenide (GaAs) material system, a field effect transistor (FET) bias circuit implemented in the gallium arsenide material system and adapted to receive an output of the reference voltage generator circuit and adapted to provide an output to a radio frequency (RF) amplifier stage.

Abstract: In a power saving device and power saving method for a mobile access point, the power saving device sets a minimum power saving interval among power saving intervals of at least one first station coupled to the mobile access point as a power saving interval of the mobile access point. The power saving device prevents a power supply voltage from being supplied to at least one first wireless interface wirelessly communicating with the first station(s) during the power saving interval of the mobile access point when a minimum remaining power saving interval of at least one second station working in a power saving mode is longer than the power saving interval of the mobile access point.

Abstract: Power reduction in links, such as transmitters and receivers, based upon global decisions such as the data transmission frequencies, communications media, and traffic types associated with links, is disclosed. In particular, embodiments take advantage of high-level decisions by reconfiguring internal circuits of transmitters and receivers of links to reduce power consumption. At the global level, a decision determines the links that are active, the data frequency at which the links operate, and the media through which the links transmit the data. At the local level, the links receive the decisions and reconfigure circuitry automatically to minimize power based upon the decisions. In some embodiments, the links may receive the decisions in the form of power modes. In further embodiments, the links may receive settings such as on/off settings, data frequency settings, and traffic/media settings, the combination of which indicates power modes.

Abstract: A method of coordinating devices in a wireless network is provided. First capability data associated with a first type of power source and a first state of the power source of a first device is received at a second device. Second capability data is transmitted to the first device from the second device. The second capability data is associated with a second type of power source and a second state of the power source of the second device. The first capability data is compared with the second capability data at the second device. If the comparison indicates the first capability data is less desirable than the second capability data, the second capability data is transmitted again to the first device from the second device. If the comparison indicates the first capability data is more desirable than the second capability data, the first capability data is received again from the first device at the second device.

Abstract: A receiving device performs reception in a service period of a broadcast signal and switches to a power saving mode in a non-service period. The service period is composed of a first period during which an application data table of an MPE-FEC frame is transmitted and a second period, following the first period, during which an RS data table of the MPE-FEC frame is transmitted. An error correction unit 12 performs one of error correction that uses the whole RS data table according to MPE-FEC, and erasure correction that uses a same number of parity bytes as bytes having bit errors. When the bit errors are corrected by the error correction unit 12 performing erasure correction, a power control unit 30 switches a receiving circuit to a power saving mode before the second period ends.

Abstract: A detecting method and a detecting device for saving electrical power consumption of a communication device are introduced. During each operation cycle, a receiving end is switched between a hibernation mode and an operation mode alternately. The receiving end in the hibernation mode is supplied with a first electric power, the receiving end in the operation mode is supplied with a second electric power, and the first electric power is smaller than the second electric power. The receiving end in the operation mode detects whether there is a first signal from a sending end. If receiving the first signal, the receiving end is kept in the operation mode, and continued to be supplied with the second electric power. If the receiving end in the operation mode does not receive the first signal, the receiving end enters the hibernation mode and is supplied with the first electric power.

Abstract: An integrated circuit for supplying power includes an IC chip having a rectangular shape and having a first edge and a second edge opposite the first edge, a switching regulator implemented on the IC chip and having a driver transistor whose ON time of switching is controlled to adjust an output voltage of the switching regulator, and a series regulator implemented on the IC chip, wherein the driver transistor of the switching regulator is positioned near the first edge, and the series regulator is positioned near the second edge.

Abstract: In one embodiment of the present invention, two crystal oscillator circuits are coupled in parallel to provide differing performance according to mode. Generally, a first circuit provides low phase noise and high accuracy while a second circuit provides greater phase noise within an acceptable tolerance while consuming significantly less power in a low power mode of operation. The second circuit includes an entirely separate amplifier for the low power operation that tolerates a relatively smaller input signal swing but that consumes even less power. The first circuit, which comprises selectable amplification elements, and the second circuit are coupled in parallel with selectable resistive elements and capacitive elements to provide varying amounts of amplification and filtering according to whether an operational mode is in a startup mode, a normal mode, or a low power mode of operation.

Abstract: An apparatus includes a voltage generator and a superstructure. The voltage generator includes a conductive base, an insulating spacer and a conductive top. The superstructure includes a platform and an antenna system. The voltage generator provides a voltage difference between the conductive base and the conductive top that is greater than 10,000 volts.

Abstract: A network for power transmission to a receiver that converts the power into current includes a first node for transmitting power wirelessly in a first area. The first area has a minimum electric or magnetic field strength. The network includes a second node for transmitting power wirelessly in a second area. The second area has a minimum electric or magnetic field strength and overlaps the first area to define an overlap area. In another embodiment, the network includes a source in communication with the first and second nodes which provides power to them. Also disclosed are methods for power transmission to a receiver that converts the power into current.

Abstract: An apparatus for providing dynamic assignment of slot cycle index includes a processing element. The processing element may be configured to send a registration message to a server for registering a network node to a service associated with the server, to receive a response to the registration message from the server in which the response identifies slot cycle index information, and to apply a slot cycle value at the network node based on stored information defining the slot cycle value corresponding to the identified slot cycle index information.

Abstract: A power management bus for controlling power over multiple device subsystems includes a master power bus controller which transmits power management information to control one or more power resources through a transmit interface. The transmitted information is received at one or more receive interfaces. A broadcast message can be transmitted to control multiple power resources by subsystem, resource group and resource type. A single address message can be transmitted to control a single power resource. A power down can be initiated at any of the receive interfaces.

Abstract: A broadcasting satellite receiving converter IC includes a switch circuit and a voltage generating source. Disposed in front of the broadcasting satellite receiving converter IC are two first amplifying circuits which amplify differently polarized BS signals, respectively, and a second amplifying circuit. The switch circuit receives, from a BS tuner, a DC voltage signal for controlling switching of polarized signals to be received, and detects the strength of the received DC voltage signal, thereby determining which of the first amplifying circuits to use. Depending on the strength of the DC voltage signal detected by the switch circuit, the voltage generating source supplies either the first amplifying circuits and the second amplifying circuit with positive and negative voltages through a plurality of terminals.

Abstract: A constant voltage source supplies a bias current to a wireless receiver circuit. A bias current detector circuit detects the bias current, and outputs a detection result to a current controller circuit. The current controller circuit outputs the detection result of the bias current to a memory circuit. The current controller circuit controls the bias current detector circuit to stop operating thereof, and then controls the bias current to decrease when the detected bias current is larger than a predetermined first threshold value and controls the bias current to increase when the detected bias current is smaller than a second threshold value smaller than the first threshold value, based on the detection result stored in the memory circuit.

Abstract: Systems, processes and apparatus are described through which signals are received from a controller, where the signals include a power ON signal. A time measurement element is started responsive to the power ON signal to assess a current duration of operation of the system. An existing cumulative record of system operation is recalled from a non-volatile memory in the system and the existing cumulative record is combined with the current duration to provide a representation of a running elapsed time, which is recorded in the non-volatile memory and is compared to a threshold to provide an indication when the running elapsed time has traversed the threshold.

Abstract: A system includes fobs and sensors each of which has a wireless transceiver, a processor and a battery powering the transceiver and processor. A server includes a processor and wireless transceiver, both of which are mains-powered. A fob processor timer repetitively causes its processor to enter a normal mode from a sleep mode, cause the transceiver to enter a powered state from a reduced power state, and send a wireless message from its transceiver to the server transceiver to request data therefrom. A sensor processor timer repetitively causes its processor to enter a normal mode from a sleep mode, cause the transceiver to enter a powered state from a reduced power state, read an analog or digital input, and send a wireless message based upon the read input from its transceiver to the server transceiver to provide data thereto. Each of the timers times asynchronously with respect to other timers.

Abstract: A terminal device including a radio unit that adopts code division multiple access (cdma), which device omits unnecessary cell search by extending an in-zone cell monitoring cycle and a re-selection cycle in a case where under fixed conditions during cell search, when a physical layer and an RRC of the radio unit determine that a mobile phone remains still.

Abstract: In one embodiment, a receiver circuit is provide that may receive either a differential input or a single-ended input corresponding to an interface. The receiver circuit may include at least two current sources to control a gain of an amplification stage in the receiver. If the receiver circuit is receiving a differential input, one of the current sources may be used. If the receiver circuit is receiving a single-ended input, both of the current sources may be used. A larger gain may thus be provided for the single-ended input as compared to the differential input.

Abstract: The invention provides a system and method for detecting activation of a communication device via passive means. For the system and method, the device comprises a casing for housing a display and a keyboard; a microprocessor controlling aspects of the keyboard and display; a passive usage sensor; and a power application operating on the microprocessor. The power application monitors the usage sensor for a signal indicating movement of the device from a resting location when the device is in a low power mode and upon detection of the signal for provides power to at least one additional element in the device.

Abstract: Provided is a driving voltage control module capable of minimizing current consumption and time taken to return from a standby state to a normal state by controlling driving voltages for electronic circuits and systems for communication when a mobile communication transceiving circuit or a communication system is in a standby state in which there is no busy signal. The driving voltage control module includes a regulator for converting an input power voltage into a predetermined level of DC voltage, and supplying the converted DC voltage to an external circuit module as a driving voltage; and a voltage controller for controlling an output voltage level of the regulator, wherein, under control of the voltage controller, a level of the driving voltage is adjusted to be a standby voltage level lower than a turn-on voltage level of a switching device constituting the external circuit module.

Abstract: A method of designing stacked circuits for an integrated circuit is described. In this method, a plurality of devices that are stackable may be determined. Some of those devices, i.e. a subset of stackable devices, may be formed in a deep n-well, thereby allowing that subset of stackable devices to receive an increased supply voltage. The remainder of the stackable devices may be formed in a standard n-well, thereby allowing such devices to receive a standard supply voltage. In one embodiment, the standard supply voltage may be VDD and the increased supply voltage may be 2×VDD. This method may be advantageously used in both the design of stacked circuits for and the implementation of stacked circuits in an integrated circuit.

Abstract: The present invention is a receiving circuit used for a cellular phone that is reduced in size and can realize low power consumption. In a signal reception circuit that is used in a cellular phone that perform transmission and reception of a plurality of band wireless signals and includes a low-pass filter for removing blockers unnecessary for signal reception, the low-pass filter 104 is composed of a plurality of filters composed of a plurality of different circuit configurations and having a plurality of different pole positions, switching between a filter for blocker removal and a filter configuration with reduced sensitivity degradation is performed by combining a plurality of filters for each signal reception band, and by performing power-off of an unnecessary filter portion in the filter configuration, power consumption is reduced.

Abstract: Aspects of a method and system for a power switch with a slow in-rush current are presented. Aspects of the system may include at least one resistive component, which is coupled between an input control signal and an output stage circuit of a power switch circuit, so as to limit a peak transient current level, which may result from in-rush current delivered by the power switch circuit to a load impedance circuit during a transient time interval during which a voltage level across the load impedance circuit may rise or fall from an initial voltage level to a quiescent voltage level.

Abstract: The present invention provides a mobile phone having a control mechanism for controlling transmission power according to changes in various environmental conditions. A mobile phone for performing transmission at a transmission frequency of an assigned channel, the mobile phone comprising: a temperature detecting unit operable to detect a temperature in the mobile phone; a correction value specifying unit operable to specify a correction value for correcting transmission power, according to the temperature detected by the temperature detecting unit and the transmission frequency; and a control unit operable to control the transmission power based on the correction value specified by the correction value specifying unit.

Abstract: The specification and drawing figures describe and show an apparatus, system and method of extending and improving battery life that includes identifying one or more parameters that affect linearity of a receiver, assigning the one or more parameters to one or more modes, and adjusting the linearity of the receiver based on the one or more parameters.

Abstract: A receiving apparatus includes: an electronic device; a first antenna which is provided so as to be separate from a main body of the electronic device and receives broadcast waves; and a power transmission cable which transmits power to the electronic device. In the power transmission cable, a high-frequency blocking section is disposed on the side of a power source, and at least a part of the power transmission cable functions as a second antenna receiving a broadcast wave. The electronic device includes a diversity processor executing a diversity process on a signal received by the first antenna and a signal received by the second antenna.

Abstract: GPS navigation devices or GPS receivers can consume less power by using a temperature recorder circuit and/or a power manager in maintaining the accuracies of the GPS receiver time and reference frequency to improve battery life. A representative receiver includes a time reference device and the temperature recorder circuit that operate while the receiver hibernates. The time reference device generates clock signals and the temperature recorder circuit receives and operates using the clock signals from the time reference device. The temperature recorder senses the temperature of the time reference device. The temperature recorder circuit is designed to send a wake-up signal to at least one electrical component of the receiver to wake up the electrical component of the receiver. The electrical component of the receiver includes at least one of the following: a GPS signal processing system and a frequency reference device.

Abstract: One aspect of the invention is directed towards a switching power regulator and a non-switching power regulator in conjunction to provide regulated power to the digital logic. The digital logic and switching regulator may be deactivated during RF activity so that interference from both the digital circuitry and the switching regulator is significantly reduced. Also, the state of the digital circuitry may be maintained during this standby period by using the non-switching power regulator to provide an as-required leakage current to the digital circuitry in order to maintain state. After the RF event (e.g. sending or receiving data) has concluded, the switching regulator may be activated and digital processing continued using the digital logic with no loss of continuity.

Abstract: A remote battery-operated device operates in accordance with a first set of operating parameters. During operation, power consumption information is generated and transmitted via a data network to a remote location for later use. In one embodiment, the remote location transmits one or more modified parameters back to the battery-operated device which control subsequent operation of the device. In this manner, power consumption within the device may be controlled to achieve a predetermined or desired operating lifetime.

Abstract: A control system for a mobile device comprises at least one touch sensor that generates a resistance signal based on a sensed resistance. A comparing module generates a first signal when the resistance signal is less than a threshold. A timing module determines a duration of the first signal. A selecting module communicates with the timing module and selects one of an active mode and an inactive mode of the mobile device when the duration is greater than a first period.

Abstract: A digital demodulating apparatus includes a tuner that selectively receives one of frequency bands, and a demodulator that demodulates a signal from the tuner.

Abstract: A power status signal is received in an integrated circuit that indicates an inductive power status of an off-chip inductive power module and a battery power status of a battery. A power mode is selected based on the at least one power status signal. A power mode signal is generated based on the selected power mode. A power supply signal is generated and adjusted in response to the power mode signal.

Abstract: A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request.

Abstract: Methods and arrangements for wireless communications are described. Embodiments include transformations, code, state machines or other logic to adaptively change a snoozing interval of a station. The embodiments may also include determining a timeout (TO) period for a station, examining network traffic of the station after a period of network traffic inactivity not less than the TO period, and determining a snoozing interval, the length of the snoozing interval based upon the examination of the network traffic. The embodiments may also include adjusting the length of the TO period. In some further embodiments, examining network traffic may include determining categories of network traffic. In other further embodiments, examining network traffic may include determining a size of a queue of network traffic for the station. The embodiments may also include redetermining a snoozing interval after returning to a normal power mode.