Abstract: The disclosure provides a circuit and method for activating an electronic device from a low power state. The activation circuit comprises: a first accelerometer in the device; a second accelerometer which is activated upon receiving a movement signal from the first accelerometer; an input device; and a circuit to provide power to the input device when a series of connected movements signals from at least one of the first and the second accelerometers match a predetermined movement gesture.

Abstract: The disclosure provides a system, circuit and method for activating an electronic device from a low power state. The circuit comprises: a microprocessor; a first accelerometer; a second accelerometer which is activated upon receiving a movement signal from the first accelerometer, indicating a movement of the electronic device; a threshold circuit connected to an output of the second accelerometer to allow only signals generated by the second accelerometer that exceed a threshold to pass; an input device; and a monitoring circuit connected to the input device and an output of the threshold circuit. The monitoring circuit comprises a latch circuit utilizing signals from the threshold circuit and a reset signal from the microprocessor to generate a trigger signal to activate the input device. The monitoring circuit selectively generates an activation signal to activate the electronic device to a higher power state utilizing a notable signal received from the input device.

Abstract: The invention provides a system and method for activating an electronic device from a low power state. In the system, an activation circuit for an electronic device is provided. The circuit comprises: a motion sensor circuit; an input device; and a monitoring circuit connected to the input device. The monitoring circuit provides power to the input device when the motion sensor circuit detects a notable movement of the device and selectively generates an activation signal used to activate the electronic device to a higher power state in response to receiving a notable signal received from the input device.

Abstract: An electronic tool and method to manage a battery includes a processor to monitor a battery charge and estimate a required charge needed by the electronic tool to complete any task or job shift. When the processor determines the battery charge is insufficient, the processor applies business rules to reduce and terminate functions of the electronic tool to conserve power.

Abstract: A mobile communication device with a low power receiver for signal detection and a method for utilizing a low power receiver for signal detection in a mobile communication device. Various aspects of the present invention comprise a first receiver module adapted to operate in a sleep mode. The first receiver module may also be adapted to receive a communication signal utilizing a first amount of power, where the communication signal is characterized by a first set of signal characteristics. A second receiver module may be adapted to receive a communication signal characterized by the first set of signal characteristics. The second receiver module may be adapted to receive a communication signal utilizing a second amount of power that is less than the first amount of power. A communication signal received by the second receiver module may be analyzed to determine a mode in which to operate the first receiver module.

Abstract: A method of executing to battery power consumption between an access terminal (AT) and an access network (AN) in a wireless communication system is disclosed. More specifically, the method includes transmitting a notification message to the AN, receiving a confirmation message from the AN, and entering the power-saving mode according to the determined power saving mode. Here, the notification message includes at least one of battery life information and a power-saving mode request, and the confirmation message includes a determined power saving mode which is based on the at least one of battery life information and the power-saving mode request.

Abstract: A communication system provides network-based battery power management that may be transparent to a user of a mobile station (MS). When one or more elements of a network of the communication system determines that the MS is operating at a low power supply charge level and/or has experienced a significant change in a charging level of the power supply, the one or more network elements may arrange for postponement of delivery of a delay-tolerant service to the MS or for adjustment of one or more of a characteristic of a service provided to the MS and a parameter of a radio communication with the MS, including restoration of full services to an MS whose power supply charge level has been restored.

Abstract: A power management scheme for use in a wireless device reduces the power consumption of the network interface module of the wireless device by selectively putting the network interface module into a low-power state for an idle time. The length of the idle time is calculated such that the amount of delayed traffic data accumulated is expected to be less than or equal to a pre-selected threshold when the network interface module is put in the low-power state for the calculated idle time. The amount of delayed traffic data as a function of the idle time is modeled using average inter-arrival and service rates that are derived from traffic statistics data.

Abstract: A signal protocol assembly is adapted to bridge electronic communications across a plurality of communications platforms allowing a plurality of electronic devices to transfer data therebetween. The signal protocol assembly is electrically connected between the electronic communications device and a communications hub to help facilitate in the translation of communications from the electronic communications device to a third party independent communications protocol, and back when necessary. The signal protocol assembly includes a microprocessor for receiving data from each of the plurality of electronic devices. The signal protocol assembly also includes a plurality of ports electrically connected to the microprocessor for selectively connecting a portion of the plurality of electronic devices in electrical communication with the microprocessor.

Abstract: A method and information processing system for wirelessly transmitting at least one of a downlink channel descriptor and an uplink channel descriptor for reception by at least one wireless device (104). The method comprises selecting at least one transmission time for transmitting a pointer that indicates a transmission time for a DCD and/or a UCD. The pointer is transmitted at a time between a first transmission and a second transmission of the at least one of downlink channel descriptor and uplink channel descriptor. The transmission time is selected to reduce a time interval for the at least one wireless device (104) to search for the at least one of the DCD and UCD. Also, a message that includes DCD information and/or UCD information associated with at least one neighboring cell can also be chosen to transmit at specifically chosen times to the at least one wireless device (104).

Abstract: An apparatus controls battery power in a mobile terminal supporting digital multimedia broadcasting (DMB) service. In the apparatus, first and second radio frequency (RF) signal processors respectively process DMB signals and call signals received through associated antennas. A DMB modem demodulates DMB signals output from the first RF signal processor. A voltage detector detects a voltage of the mobile terminal and disables the DMB modem if the detected voltage is less than or equal to a threshold.

Abstract: A receiving device includes a receiver circuit for outputting a received signal as a reception electric field intensity signal, an operation control circuit for controlling an operation of the receiver circuit, and an intermittent reception control circuit for outputting a periodic signal. A comparator circuit holds a first threshold indicating that the receiving device has entered a communication area and a second threshold indicating a start of a continuous electric field intensity measurement. If the reception electric field intensity signal is lower than the second threshold, the operation control circuit makes the receiver circuit perform intermittent operation. If the reception electric field intensity signal is equal to or higher than the second threshold, the operation control circuit makes the receiver circuit perform a continuous operation.

Abstract: A power saving method in a wireless LAN system is disclosed for permitting a terminal station to promptly transition to a doze state irrespective of the presence or absence of data destined to the terminal station in a base station. Upon receipt of a PS-Poll signal from a terminal station subordinate to a base station for prompting a transmission of data destined to the terminal station, the base station transmits an ACK signal to the terminal station for indicating a successful reception of the PS-Poll signal. Further, the base station transmits a data frame including data destined to the terminal station when there is such data, or transmits an empty data frame when there is no data destined to the terminal station. Then, upon receipt of the data frame (including the empty data frame), the terminal station transmits an ACK signal to the base station, and then transitions to the doze state in which a transmission/reception function is made inoperative.

Abstract: A receiver includes two receiving modules, where the first receiving module is extremely parsimonious on battery power and as long as it is successful in developing a proper output signal at a given port maintains the second receiving module off, or substantially off. When the signal output of the first module drops below a preselected output, the second receiving module is enabled to develop and apply an output signal to the given port.

Abstract: The present invention provides a method of accessing a quiescent mobile vehicle using a wireless communication system. At least one transmit power parameter of a vehicle communication device is determined. At least one sleep duration value is calculated based on the transmit power parameter. The vehicle communication device is placed into a quiescent state based on the sleep duration value. Programs and systems of using the method are also provided.

Abstract: An integrated mobile terminal device including an external display unit, a personal digital assistant (PDA) unit and a cellular phone unit combined with one another, and a timer controlled by either the PDA unit or the cellular phone unit for enabling the PDA unit at given time intervals is provided. The cellular phone unit controls the external display unit in an enabled state, directs the PDA unit to control the external display unit when the cellular phone unit is switched off and the cellular phone unit detects the PDA unit to be in an enabled state, and transitions to an off state after activating the timer when the PDA unit is in a disabled state. The PDA unit determines whether the cellular phone unit is in the off state when the PDA unit transitions to the enabled state, and transitions to the disabled state after activating the timer when disabled.

Abstract: A radio frequency receiver for receiving supplementary data transmitted with a radio station signal. The supplementary data includes one or more information word fields containing supplementary data transmitted with the radio station signal. The receiver includes a host processor for processing the supplementary data; a supplementary data demodulator and decoder for demodulating and decoding a received radio signal to generate a stream of bits representing one or more information word fields; an information word type memory for storing one or more information word type fields; detection circuitry arranged to receive and compare the information word type field decoded by the supplementary data decoder with one or more information word type fields stored in the information word type memory, and to provide a matched condition signal in response to a match between one or more decoded information word type fields and one or more of the corresponding stored information word types fields.

Abstract: A power processing interface for a radio frequency identification system is provided.

Abstract: A novel apparatus and method of reduced power consumption for battery backup operation of a communication device such as a cable modem. When the cable modem senses a failure of the external power source it requests from the cable head-end to switch from multi-channel DOCSIS 3.0 operation to single-channel DOCSIS 2.0 operation. In response to approval by the cable head-end, the cable modem shuts down multi-channel circuits in the PHY such as the wideband analog to digital converter (ADC) which is normally used during multi-channel operation. In its place, it activates narrowband circuitry such as a narrowband ADC which consumes far less power. Tuner filter circuits are also swapped to match the reduced bandwidth requirements of battery backup operation. To further reduce power, the narrower bandwidth requirements during battery backup operation permit the linearity of a programmable gain amplifier (PGA) in the upstream path to be reduced.

Abstract: Method and system for reducing the power consumption in a receiver. A power consumption control module reconfigures the receiver for every packet received by the receiver, by setting the receiver's modules to an optimal mode of operation from a power consumption perspective, based on parameters extracted from each packet header.

Abstract: A countdown timer for high performance flashlights and similar battery-operated devices that is initialized with a runtime figure equal to the life expectancy of installed linear depletion-curve cells, that is always on and visible, that counts down whenever the flashlight is switched to the ON position, and that displays time remaining until the installed cells/charge are depleted, thus permitting the user to see at a glance the approximate runtime remaining on the installed power supply.

Abstract: Providing a wireless communication device that, even if clock stop of a radio frequency part is controlled by a baseband part operating on the same clock signal, can resume clock oscillation, and makes it easy to time the clock reactivation to other operations based on a shared clock. The wireless communication device comprises an RF part generating a first clock signal and a baseband part. The baseband part generates a second clock signal, controls the generation and stop of the first clock signal, uses the first clock signal to perform data processing and a clocking operation, and in a low power consumption state in which the first clock signal is stopped, uses the second clock signal to perform a timer operation and a clocking operation. The generation timing of the first clock signal can be generated by the timer operation using the second clock signal.

Abstract: A system for selectively illuminates a light source that illuminates a power indicator of a video apparatus when the indicator distracts a viewer. The power button illumination is selectively set to be extinguished or illuminated when the video apparatus is powered on by means of an on-screen menu as an example. Extinguishing the power button light source does not affect the ability of the indicator to become illuminated to provide information to a viewer regarding the operating status of the video apparatus such as when a TV projection lamp has failed.

Abstract: A multi-functional mobile terminal for independently operating heterogeneous devices, including a power-supply unit for selectively providing a power-supply signal for a corresponding module according to a power-supply entry signal; a personal information terminal module for executing a corresponding operation using the power-supply signal received from the power-supply unit, containing a first display, and controlling the first display to display status information of the executed operation; a mobile terminal module for executing a corresponding operation using the power-supply signal received from the power-supply unit, executing a corresponding operation after receiving a prescribed command, and displaying operation status information on a second display in a powered-off state; and a module selector for controlling a power-supply operation of the power-supply unit to selectively provide the power-supply signal for either the personal information terminal module or the mobile terminal module.

Abstract: A method of paging a plurality of users by synchronizing user equipment (UE) specific paging and Point-to-Multipoint (PtM) user group paging to reduce power consumption when the UE is in a discontinuous reception state. The UE identities are defined such that paging occasions and common paging channels are synchronized for multiple users within a PtM user group.

Abstract: While a general-purpose interface circuit and another general-purpose interface circuit are provided so as to transmit/receive data between a host appliance and a device appliance, when the general-purpose interface of the device appliance happens to hang up, a control section transmits a reset signal via a dedicated interface circuit. When a dedicated interface circuit provided on the side of the device appliance receives this reset signal and then outputs this received reset signal to the general-purpose interface circuit, the general-purpose interface circuit is reinitiated.

Abstract: A method for enhanced power saving on DCF based wireless networks is disclosed. The method divides a beacon transmitting section in an Announcement Traffic Indication Message (hereinafter, referred to as “ATIM”) window period defined by IEEE standard 802.11 according as there is a data packet to be sent or not and allows a terminal that has received the beacon to go to a doze state immediately according to beacon reception timing, thereby preventing unnecessary power consumption.

Abstract: A method of setting up a remotely controlled wireless thermostat system for regulating heating and cooling a building. A radio equipped pager is connected to the programmable controller of the thermostat and a self test is conducted to determine if the system can successfully communicate with the service providers network at a first low power pager output. If not, the power output of the pager is incrementally increased within an acceptable output power range until such time that successful communication is established with the network. This power setting is placed in memory for use thereafter in communicating with the network.

Abstract: A radio frequency receiver for receiving supplementary data transmitted with a radio station signal, said supplementary data comprising one or more information word fields containing supplementary data transmitted with the radio station signal, said receiver comprising: a host processor for processing said supplementary data; a supplementary data demodulator and decoder for demodulating and decoding a received radio signal to generate a stream of bits representing one or more information word fields; a information word type memory for storing one or more information word type fields; detection circuitry arranged to receive and compare the information word type field decoded by the supplementary data decoder with one or more information word type fields stored in the information word type memory, and to provide a matched condition signal in response to a match between one or more decoded information word type fields and one or more of said corresponding stored information word types fields, and wherein the

Abstract: Methods and apparatus are presented to reduce the amount of processing required by a remote station to successfully decode the Common Control Channel (CCCH). During periods when a remote station does not implement any update requests, CCCH messages are discarded. During periods when a remote station implements update requests, CCCH messages are fully processed. The selective processing of CCCH messages produces a corresponding savings in power consumption.

Abstract: A system and method for performing power management in a communication system without losing data is disclosed. The G.Lite system is an exemplary system suitable for implementing the present invention because it includes at least one operational state and an idle state in which no data is transmitted. The G.Lite standard defines ATU states. The defined states are full on state L0, low power state L1 and idle state L3. In L0 state, the ADSL link is fully operational at full data rate. In L1 state, the ADSL link is fully operational at a lower data rate. In L3 state, no signal is transmitted. Because no signal is transmitted, no idle cells are transmitted. This will result in losing the cell delineation and ATM link connectivity. Therefore, when data is received for an ATU in L3 state, data cells may be lost.

Abstract: A technique for decreasing the amount of time needed to turn on a software-defined radio provides an operator of the radio the ability to turn the radio off and subsequently turn the radio on, wherein the radio is turned on much more quickly than a radio not using the herein described technique. The technique places the radio in a suspended state when off and retains selected parameters associated with selected applications and software portions. Preferably, the radio is placed in a low power consumption state concurrently with the suspended state. Thus the radio conserves power, thus increasing battery life. When the operator turns the radio on, the radio is restored to a fully function state utilizing the retained parameters.

Abstract: A communication unit (10) can have at least a first receiver (11) and a second receiver (12). The latter typically consumes more power than the former during ordinary operation. Pursuant to one embodiment a communication unit can use the lower-power receiver to detect energy on a monitored channel while the second receiver is retained in a reduced power mode of operation. Upon detecting an absence of channel activity the second receiver can be restored to normal operability to effect such activities as are then presently required.

Abstract: A mobile station capable of connected to an information providing server via a radio link, comprises a reception history table which stores an identification of information which has been received, and a controller which prevents the same information from being received based on the identification in the reception history table.

Abstract: A low power consumption RF receiver system that is adapted for receiving and shaping transmitted digital data signals into a digital data stream for processing by a microprocessor is provided. The receiver system comprises an integrated circuit, which includes a data slicer adapted to accept the received digital data signals, shape the signals into a digital data stream, and pass the digital data stream to the microprocessor. The integrated circuit further includes a peak detector adapted to sense ambient circuit noise when digital data signals are not present, develop a voltage reference signal representative of the peak value of the ambient circuit noise, and pass the voltage reference signal to the data slicer.

Abstract: A method and system of reducing average power consumption in a wireless communication device (WCD) that operates in sleep and awake modes during monitoring of a slotted paging channel includes the steps of providing a plurality of counters; establishing a roll over point for each counter at a predetermined offset relative to each other counter; identifying a timing, point for at least one roll over point; and transitioning between the sleep and awake modes during the occurrence of an identified timing point.

Abstract: A power monitor circuit and method delays the start of a computer until multiple power lines are at a safe level of operation. The integrated circuit monitors only the voltage of a primary power supply output and eliminates the need for monitor circuits on each supply output. The power supply is made to exacting specifications that tie the 5 volt and 3.3 volt supplies to the primary 12 volt supply. The ATX power supply drives the 3.3 and 5.0 supplies to reach 90% of their values within 40 ms after the 12 volt supply reaches 90% of its value. A time delay circuit 25 delays switching the 3.3 and 5 volt dual outputs from the standby voltage supply to the active voltage supplies until after the primary 3.3 and 5 volt are at a safe operating level.

Abstract: A method for reducing current drain in a communication device includes a step of determining when the communication device is transmitting. A next step includes lowering the current level to the receiver when communication device is not transmitting. A next step includes raising the current level to the receiver when communication device is transmitting. Changing the current level alters the linearity of the receiver. As a result, the communication device reduces power consumption while operating in a traffic channel. The system is applicable to full duplex systems such as code division multiple access (CDMA) systems.

Abstract: A device conserves energy while engaging in wireless data communications. The device determines (705) whether it has ceased data communication for a first period of time. The device then selectively powers down (725) components in the device when the device has ceased communication for the first period of time.

Abstract: Simplified data message terminals and data communicating voice terminals are described for providing additional functionality in a facility using a wireless data communication system. The simplified data message terminals provide message and paging communication to employees or customers in a simplified terminal configuration using the existing data communication system. By performing voice to data and data to voice conversions, the same system provides voice communication without interruption of data communication services.

Abstract: A wireless signal receiving device with prompt wake-up function is disclosed for receiving serial data transmitted from computer peripherals. The device includes a RF signal receiving module, a bridge module and a USB module, which can operate in normal mode, first idle mode, second idle mode or search mode. When the device is in the first idle mode, it still receives serial data normally. When the device is in the second idle mode, the device can change to the search mode periodically to search whether there is new transmitted data. The main drawback of not being promptly waken up when the conventional wireless signal receiving device is in idle mode is improved through the disclosed device and the two idle modes.

Abstract: The invention involves systems and methods of providing energy to land-based telemetry devices wherein the energy storage and power conditioning system is comprised of an input power supply, an energy storage element, an output supply and a control system. The input power supply provides energy to the output power supply and charges the energy storage element. The energy storage element is comprised of one or more UltraCaps and supplies energy to the output power supply at times of peak need and when the primary energy source to the input power supply is removed. The control system adjusts the voltage supplied to the energy storage element by the input power supply according to changes in the ambient temperature to compensate for changes in the internal equivalent series resistance of the UltraCaps caused by the change in ambient temperature. The output power supply provides energy to the land-based telemetry device.

Abstract: The present invention provides an RFID transponder that includes a state holding cell that maintains the present state of the RFID transponder during temporary losses of power. After power is restored to the RFID transponder, the state holding cell restores the present state to the RFID transponder so that transactions with an RFID interrogator can continue without having re-transmit redundant commands. The RFID transponder further comprises an RF front end adapted to receive an interrogating RF signal. An analog circuit is coupled to the RF front end and is adapted to recover analog signals from the received interrogating RF signal. The analog circuit provides state information defining a desired state of the RFID transponder corresponding to the analog signals. A digital state machine is coupled to the analog circuit and adapted to execute at least one command in accordance with the state information.

Abstract: The present invention provides for a system for operating a communication device (20) for reception of scheduled intermittent information messages (22) with a dual mode timer (70) that extends battery life. A controller (50) schedules the timer (70) to power down all idle components of the device (20) between message receptions in a power saving sleep mode to conserve battery power. During active mode when the device is fully active in reception of messages, the timer (70) uses a reference oscillator (90) with a relatively high frequency to support digital processing by the receiver (26). During sleep mode when only the timer is powered on, a much lower frequency sleep oscillator (96) is used to maintain the lowest possible level of power consumption within the timer itself. The timer (70) has provision for automatic temperature calibration to compensate for timing inaccuracies inherent to the low-power low-frequency crystal oscillator (96) used for the sleep mode.

Abstract: In a remote vehicle door control, a single receiver is used for both a wireless control whereby a door lock actuator is controlled according to an operating command transmitted by a wireless signal in conjunction with user operation of a communication device carried by a user, and a smart control whereby the door lock actuator is controlled automatically after completing a two-way communication process with the communication device. An arbitration means is provided to determine to which one of the wireless control and the smart control the receiver is assigned. If the receiver receives a wireless signal from the communication device, use of the receiver is assigned to the wireless control.

Abstract: A transponder (1) and an integrated circuit (4) have at least one signal channel (5, 6, 7), each signal channel (5, 6, 7) having at least two signal processing stages (25, 26, 27, 28, 29, 30, 31) and at least one signal processing stage (26, 27, 29) configured such as to be activatable and deactivatable, while an associated bypass branch (32, 33, 34), which is also activatable and deactivatable, is provided for each activatable and deactivatable signal processing stage (26, 27, 29), and a microcomputer (36) and a control register (37) controllable by the microcomputer, (36) are provided, by means of which each activatable and deactivatable signal processing stage (26, 27, 29) and the associated bypass branch (32, 33, 34) are activatable and deactivatable in counterphase.

Abstract: An electronic apparatus wherein a remote control signal received via a filter is decoded and, upon deciding that the control signal is a power cutoff instruction, a controlling microcomputer outputs a filter control signal for actuating the filter to place the apparatus in a reception standby mode while the microcomputer itself is also set in its low power state, hence preventing a malfunction that some noise derived from external light of a fluorescent lamp or the like is recognized erroneously as a remote control signal and that the apparatus is shifted in error from the low power state to its wake-up mode. Consequently, the power consumption can be reduced in the standby mode. The remote control signal consists of a fixed-width pulse and a succeeding control code, and upon detection of the fixed-width pulse, the controlling microcomputer is released from the low power state to wake up and then halts the operation of the filter.

Abstract: When the amount of remaining battery power is limited, a battery life can be extended while established function can be maintained available enough. A battery remaining power amount monitoring portion 4 monitors the amount of remaining battery power. On lighting the backlight within a liquid crystal display 1, when a controlling portion 6 determines the amount of remaining battery power to be higher than or equal to a predetermined level based on the result of monitoring in the battery remaining power amount monitoring portion 4, the controlling portion 6 causes the width of a pulse outputted to an LED driving portion 5 to be a determined width, and when the controlling portion 6 determines the amount of remaining battery power to be lower than the predetermined level, it causes the width of a pulse outputted to the LED driving portion 5 to be a narrower width than the determined width.

Abstract: A system and method for reducing power consumed by an integrated electronic device. The device includes a personal data assistant (PDA) unit and a wireless telephone integrated in a common housing. A common display on the housing is used for displaying messages from both the PDA and the wireless telephone to a user. A controller, coupled to the wireless telephone, places the wireless telephone in a power-off state after expiration of a predetermined period of time following cessation of voice traffic activity on the wireless telephone. The controller switches the wireless telephone from the power-off state to a power-on state if, during operation in the power-off state, a user begins an attempt to place an outgoing call with the wireless telephone. The wireless telephone is unable to receive an incoming call when the wireless telephone is in the power-off state.

Abstract: Wireless communication systems, radio frequency identification devices, methods of enhancing a communications range of a radio frequency identification device, and wireless communication methods are described.