| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 455343100 | Having particular power or bias supply (including self-powered or battery saving means) | 51 |
| 20080254760 | Adaptive Power Control Data Transmission Systems and Methods - Systems and methods of performing power control in combination with AMC are provided. AMC is performed on the basis of an AMC parameter such as CINR. Once the AMC is set to a highest available AMC for transmission to a given receiver, if the CINR indicates that the highest AMC could be transmitted with less transmit power, the power is reduced. For receivers that are not receiving the highest available AMC for that receiver, they may have their transmit power increased. | 10-16-2008 |
| 20090029669 | Radio Frequency Power Load and Associated Method - A radio frequency power load and associated method. A radio frequency power load apparatus includes a container and a fluid having an ion source therein, the fluid being contained in the container. Two conductors are immersed in the fluid. A radio frequency transmission system includes a radio frequency transmitter, a radio frequency amplifier connected to the transmitter and a radio frequency power load apparatus connected to the amplifier. The apparatus includes a fluid having an ion source therein, and two conductors immersed in the fluid. A method of dissipating power generated by a radio frequency transmission system includes the steps of: immersing two conductors of a radio frequency power load apparatus in a fluid having an ion source therein; and connecting the apparatus to an amplifier of the transmission system. | 01-29-2009 |
| 20090036089 | System, apparatus and method for frequency based current reduction in wireless portable devices - An embodiment of the present invention provides a method, comprising reducing power consumption in a wireless device by adapting the bias current of active devices in the apparatus to the RF carrier frequency of the wireless device. | 02-05-2009 |
| 20090068977 | WIRELESS SECURITY MESSAGING MODEL - Reducing power consumption and interference in wireless communication is provided. For example, in one embodiment, a method is provided that listens for radio frequency (“RF”) activity on a receiver utilizing a first receiver antenna. When no RF activity is detected the receiver is switched “on” and a command is transmitted. If a reply to the transmission is not received the receiver is turned “off.” After an expiration of time, the receiver is again switched “on” and another command is transmitted on a second antenna coupled to the receiver. Thereafter, if a reply is not received the receiver is again turned “off.” Embodiments of the invention also include other methods, computer-readable mediums, apparatuses, and systems that contain features similar to the features in the above described method. | 03-12-2009 |
| 20090111421 | DETECTING METHOD AND DEVICE FOR SAVING ELECTRICAL POWER CONSUMPTION OF COMMUNICATION DEVICE - 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. | 04-30-2009 |
| 20090149152 | METHOD AND DEVICE FOR MAINTAINING AVERAGE POWER OF A BASEBAND SIGNAL - A method and device maintains constant average power of a baseband signal. The baseband signal to be power amplified is received into a processing device that measures a first average power of the baseband signal. Peak reduction is performed on the received baseband signal. A second average power of the baseband signal is measured after peak reduction. Gain compensation is determined based on the difference between the first and second average power measurements. The gain compensation is applied to the baseband signal after the peak reduction in order to maintain a substantially constant average power of the baseband signal. | 06-11-2009 |
| 20090186593 | METHOD FOR PROCESSING A SIGNAL - A method for processing a signal, wherein at least one of NF processing, audio processing, demodulation processing, and parts thereof of a processing section is suspended, while one or a plurality of certain suspending criteria are fulfilled, and wherein one or a plurality of suspending criteria are obtained or evaluated as control data from or by a pre-processing section with respect to the signal to be processed or a part or derivative thereof. | 07-23-2009 |
| 20090209223 | System and method for power savings in a wireless communication network - A method for power savings in a wireless communications network including selecting one or more connections with common performance characteristics to create a plurality of power savings classes, attributing a power savings window size to each power savings class, and aligning power savings classes with the same start time to generate an aligned power savings class. In addition, the method includes communicating the plurality of power savings classes and each associated power savings window size to a base station. | 08-20-2009 |
| 20090239496 | ADAPTIVE LINEARITY COMMUNICATION DEVICE - An adaptive linearity communication device and its operation are disclosed. The adaptive linearity communication device may include a component having a linearity dependent upon a bias and a processor configured to change the bias in response to the detection of a connection between the wireless communication device and a high-capacity power source. A method of operating an adaptive linearity communication device having a bias dependent component where the device is configured to operate in a high efficiency mode in the absence of a connection between the device and a high-capacity power source, may include determining whether a high-capacity power source is connected to the wireless communication device, and varying the operation of the bias dependent component based on whether a high-capacity power source is connected to the wireless communication device. | 09-24-2009 |
| 20090325533 | METHOD FOR USING AN ADAPTIVE WAITING TIME THRESHOLD ESTIMATION FOR POWER SAVING IN SLEEP MODE OF AN ELECTRONIC DEVICE - Portable battery operated electronic devices often use a “sleep mode” for energy conservation. A key feature introduced in the IEEE 802 standard ensures power-efficient operation of these battery operated mobile devices. However, the standard fails to define what will trigger a device into the sleep mode while other systems define “waiting time threshold” as a time for which a Mobile Subscriber Station (MSS) waits before entering into sleep mode which has a constant duration. An embodiment of the present invention uses a unique method ( | 12-31-2009 |
| 20100003944 | SYSTEM, CIRCUIT AND METHOD FOR ACTIVATING AN ELECTRONIC DEVICE - 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. | 01-07-2010 |
| 20100009650 | SYSTEM AND METHOD FOR ACTIVATING AN ELECTRONIC DEVICE - 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. | 01-14-2010 |
| 20100029242 | SYSTEM AND METHOD FOR ACTIVATING AN ELECTRONIC DEVICE - The disclosure provides a circuit and method for activating an electronic device from a low power state. The activation circuit comprises: a first accelerometer located in the device to detect a movement of the device along a specific axis; a second accelerometer which is activated upon receiving a movement signal from the first accelerometer indicating a movement of the electronic device along the specific axis; an input device; and a monitoring circuit connected to the input device and an output of the second accelerometer, the monitoring circuit providing power to the input device when the second accelerometer indicates movement of the device that surpasses a threshold and then generating an activation signal to operate the electronic device in a higher power state utilizing a notable signal received from the input device. | 02-04-2010 |
| 20100056098 | CONTACTLESS RECEIVER, RESONANT CIRCUIT, AND VARIABLE CAPACITANCE ELEMENT - A contactless receiver is provided with a receiving section and a rectification section. The receiving section has a resonant circuit including a resonant capacitor having a variable capacitance element formed with a ferroelectric material, a capacitance of the variable capacitance element changing according to a received voltage at a predetermined frequency, and a resonance coil connected to the resonant capacitor. The rectification section converts an alternating current voltage output from the receiving section into a direct current voltage. | 03-04-2010 |
| 20100062739 | RECEIVING APPARATUS AND COMMUNICATION CONTROL METHOD - A receiving apparatus for stopping intermittently reception processing including path detection, the receiving apparatus includes a control portion for shifting a window having a predetermined time width indicating a section in which the path detection is performed from a position before a reception stop in accordance with a state of travel of the receiving apparatus before the reception stop, and a path detecting portion for performing the path detection processing on a receive signal within the section expressed by the window after shifted by the control portion, after a lapse of the reception stop period. | 03-11-2010 |
| 20100093303 | CIRCUIT CURRENT GENERATION APPARATUS AND METHOD THEREOF, AND SIGNAL PROCESSING APPARATUS - A semiconductor integrated circuit for use in a receiver can reduce fluctuations in characteristics caused by fluctuations in current to thereby reduce dissipation power. A bias current detection circuit and a current control circuit are provided to decrease a current of a high-frequency circuit if a bias current is large and, if the bias current is small, increase the current of the high-frequency circuit, so as to prevent characteristics of the high-frequency circuit from deteriorating and to reduce the current, thereby enabling reducing dissipation power. | 04-15-2010 |
| 20100233989 | METHODS AND APPARATUS FOR MODELING, MONITORING, ESTIMATING AND CONTROLLING POWER CONSUMPTION IN BATTERY-OPERATED DEVICES - 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. | 09-16-2010 |
| 20100248677 | Method of Improving Battery Life - 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. | 09-30-2010 |
| 20100248678 | SYSTEMS AND METHODS FOR MANAGING POWER CONSUMPTION - 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. | 09-30-2010 |
| 20100279645 | Receiver to Match Delay for Single Ended and Differential Signals - 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. | 11-04-2010 |
| 20110039512 | RECEIVER AND METHOD FOR OPERATING A RECEIVER - 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. Whereby, the controller is configured to compare a first measured value measured in the receive path to a first threshold, and the controller is configured to change the turn-on duration and/or the turn-off duration on the basis of a result of the comparison with the first threshold, and whereby the controller is configured to compare a second measured value to a second threshold in order to detect a valid signal of the preamble and, on the basis of a result of the comparison with the second threshold, to terminate the turn-off and to drive the portion of the circuit blocks into a turned-on state for a synchronization by means of the preamble. | 02-17-2011 |
| 20110111723 | POWER MANAGEMENT FOR A MOBILE COMMUNICATION DEVICE AND METHOD FOR USE THEREWITH - A communication device includes a voice data and RF integrated circuit (IC) that includes a memory module that stores a plurality of applications corresponding to a plurality of uses of the communication device. A processing module executes a selected one of the plurality of applications and selects one of a plurality of power modes based on a current one of the plurality of uses of the communication device corresponding to the selected one of the plurality of applications. The processing module 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. | 05-12-2011 |
| 20110124310 | SWITCH MODE VOLTAGE RECTIFIER, RF ENERGY CONVERSION AND WIRELESS POWER SUPPLIES - Embodiments of the present invention provide cross-coupled rectifiers that use near zero-threshold transistors in a switching topology, but provide a topology that avoids reverse conduction problems. Importantly, preferred embodiment rectifiers of the invention only provide a slightly increased on-resistance in each branch, while providing both very high operating efficiency and very low turn-on voltage. An embodiment of the invention is a voltage rectifier for the conversion of RF energy into DC voltage with a turn-on threshold voltages approaching 0V. | 05-26-2011 |
| 20110130110 | Receiver circuit adapted to communication apparatuses operative with different power voltage range - A LIN receiver includes a voltage divider that divides an input voltage and outputs the divided voltage, and a peak hold circuit that outputs a peak voltage of the input voltage. The LIN receiver is configured to generate a threshold voltage to be used for determining a voltage signal of a communication bus. The threshold voltage is generated from a voltage signal of the communication bus such that the peak value of the voltage signal (i.e., equivalent to a battery voltage) is held by the peak hold circuit and divided by the voltage divider. Although the communication bus is connected to an on-vehicle battery of which voltage varies with time, by using the voltage signal of the communication bus, a 5V system ECU can generate a threshold voltage which varies responding to the variation of the battery voltage. Hence, the voltage signal can be determined correctly as either high or low level. | 06-02-2011 |
| 20110136462 | METHODS FOR OPTIMIZING POWER AMPLIFIER SETTINGS FOR OPERATION AT DIFFERENT RADIO-FREQUENCY BANDS - Electronic devices such as cellular telephones may include wireless communications circuitry such as power amplifiers. Power amplifiers, transmission lines, and other circuit associated the power amplifiers may generate different amounts of heat depending on their operating frequency. High-heat-producing power amplifiers may be biased at lower bias voltages than low-heat-producing amplifiers to equalize temperatures and enhance performance. Performance may also be optimized by placing power amplifiers on a printed circuit board so that the high band amplifiers are placed in regions that can dissipate more heat, whereas low band amplifiers are placed in regions that dissipate less heat. | 06-09-2011 |
| 20120142304 | Power Amplifiers for Wireless Systems - A wireless transceiver may include a power amplifier that uses an envelope tracker. The envelope tracker may include stacked buck switching supply modulators, each having two different supply voltages. In one embodiment, the two different supply voltages are higher and lower supply voltages, which relaxes the voltage head room on the switching regulator and allows the use of thin gate fast transistors in some embodiments. | 06-07-2012 |
| 20120184236 | SYSTEMS AND METHODS FOR MANAGING POWER CONSUMPTION - 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. | 07-19-2012 |
| 20120220256 | CORDLESS FLASHLIGHT AND RADIO DEVICE - A portable battery-powered device comprises a lamp unit pivotably attached to a front side of a housing. A radio unit is disposed within the housing. At least one speaker is electrically coupled to the radio unit and is disposed on the front side of the housing such that the lamp unit and the speaker face the same direction. A battery pack holder is disposed on a bottom side of the housing and is configured to retain a rechargeable battery pack. | 08-30-2012 |
| 20120302194 | Method and Apparatus for An Equalized On-Die Termination (ODT) Circuit - A method and apparatus for an equalized On-Die Termination (ODT) circuit uses timed switching to reduce receiver power consumption. | 11-29-2012 |
| 20130078939 | METHOD FOR CONTROLLING FAST TRACKING POWER SUPPLY, FAST TRACKING POWER SUPPLY, AND SYSTEM - A fast tracking power supply includes a combined controllable voltage source to control a load voltage. The combined controllable voltage source is connected to a tracking current source in parallel to provide a current for a load. The tracking current source is responsible for providing a low-frequency high current for the load to implement high-efficiency low-frequency tracking of the load current and reducing an output current of the combined controllable voltage source as much as possible. Meanwhile, a power supply voltage switching unit in the combined controllable voltage source adjusts a power supply voltage range of a linear amplifier in the combined controllable voltage source, so as to reduce the power supply voltage range of the linear amplifier, thereby reducing power consumption of the combined controllable voltage source. | 03-28-2013 |
| 20130109339 | POWER MANAGEMENT TECHNIQUES FOR BUFFERING AND PLAYBACK OF AUDIO BROADCAST DATA | 05-02-2013 |
| 20130137389 | Radio Receiver Power Management Systems and Methods - According to some embodiments, an analog radio receiver circuit is configured alternatively in a full-power mode when the receiver is situated in a cradle and connected to an external power source, and in a power-saving mode when the receiver is not connected to the external power source. In the power-saving mode, a scaled-down power level is supplied to an analog radio signal processing circuit component such as an amplifier, filter, oscillator, or mixer. Scaling down the power supplied to analog circuit components allows reducing their power consumption, at the expense of degraded circuit performance (e.g. increased non-linearity and intermodulation, decreased filter selectivity). Switching between full-power and power-saving modes may be achieved by controlling the connection of internal nodes of the signal processing circuit to a power source, and/or inserting circuit components (e.g. resistors, active devices, filter poles) into the signal processing circuit. | 05-30-2013 |
| 20130237171 | Receiver Apparatus and Method - A receiver is operated in a first power mode, for example a high power mode, during a first portion of a particular connection state (for example, a RRC_CONNECTED state in LTE when the UE receiver is on) of a communication protocol being used by the telecommunications network, and a second power mode during a second portion of the particular connection state, for example a low power mode. | 09-12-2013 |
| 20150294077 | APPARATUS, SYSTEM, AND METHOD TO ADAPTIVELY OPTIMIZE POWER DISSIPATION AND BROADCAST POWER IN A POWER SOURCE FOR A COMMUNICATION DEVICE - Provided is an apparatus, system, and method for stabilizing battery voltage of a battery device while optimizing power delivered to a receiver during communication of a broadcast packet. A logic circuit is configured to receive a broadcast packet having a predetermined number of bits for communication by a controller to a receiver located remotely from the controller, determine a number of cycles in which a sampled battery voltage is either greater than or less than or equal to a nominal battery voltage over a first subset of the predetermined number of bits of the broadcast packet and performs either a tune-up or a tune-down procedure based on the number of cycles counted in which the sampled battery voltage is not equal to the nominal battery voltage for more than one half of a total number of cycles counted. | 10-15-2015 |
| 20160204813 | RADIO RECEIVER CIRCUIT, COMMUNICATION APPARATUS, AND ADAPTATION METHOD | 07-14-2016 |
| 455343200 | Battery saving based on received signal | 14 |
| 20080227425 | APPARATUS FOR IMPLEMENTING ENHANCED HAND SHAKE PROTOCOL IN MICROELECTRONIC COMMUNICATION SYSTEMS - A method and apparatus are provided for implementing an enhanced hand shake protocol for microelectronic communication systems. A transmitter and a receiver is coupled together by a transmission link. The transmitter receives an idle input. The idle input is activated when the transmitter is not transmitting data and the transmitter applies a first common mode level to the receiving unit. The idle input is deactivated when the transmitter is ready to transmit data and the transmitter raises the common mode level to the receiving unit. Responsive to the receiver detecting the common mode level up-movement, then the receiver receives the transmitted data signals. After the desired data has been sent, the transmitter terminates communications, drops the common mode level with the idle input being activated. | 09-18-2008 |
| 20080299938 | Mobile Batttery Management System - A mobile battery management system comprising receiving a battery management parameter by a client from a server over a communication path, detecting a battery control mode with the battery management parameter in the client, and operating the client based on the battery control mode and the battery management parameter. | 12-04-2008 |
| 20090221261 | PROXY SERVER FOR FACILITATING POWER CONSERVATION IN WIRELESS CLIENT TERMINALS - A novel power conservation scheme is provided for conserving power in client terminals by using a proxy server. The client terminal, having a low-power communication interface and a high-power communication interface, may power down its high-power communication interface, to conserve power. Prior to shutting off its high-power communication interface, the client terminal may assign a host terminal to act as a proxy for the client terminal. The host terminal monitors the paging channels for the client terminal via a high-power communication interface. If the host terminal detects a paging message for the client terminal, it forwards at least a portion of the paging message to the client terminal via a low-power communication interface. Upon receipt of the paging message from the host terminal via its low-power communication interface, the client terminal may power up its high-power communication interface and directly respond to an access terminal that initiated the paging message. | 09-03-2009 |
| 20090280769 | SYSTEM AND METHOD FOR STANDBY MODE IN DIRECTIONAL SIGNAL RECEIVER - A wireless receiver of a directional signal such as a 60 GHz signal can have a low power standby mode in which the linear oscillator (radio) portion of the receiver is deenergized. A DC detect circuit can detect the DC portion of an incoming signal, at which time the DC detect circuit energizes the remaining portions of the receiver. | 11-12-2009 |
| 20110034144 | SYSTEM AND METHOD FOR MANAGING COMMUNICATION OF A MOVEABLE ENTITY FOR ENERGY CONSERVATION - A system and method for managing communication of a movable entity is provided. The system comprises a chargeable power source, at least one sensor unit which is connected with the movable entity, and a global positioning device which is powered by the chargeable power source and is connected with the movable entity, wherein the global positioning device is used to track moveable entity status in response to sensor data received from said at least one sensor unit, the global positioning device is configured to execute a power saving mode based on moveable entity status information. The system and method save electric energy consumption of a battery fro the GPS device by the mode switching between a sleep mode and a work mode, and judgment on the predetermined event provided may help to prevent the machine from being stolen. | 02-10-2011 |
| 20110065413 | Power-Saving Receiver - A signal receiver capable of operating in two modes: a normal mode for reception and decoding of signals and a detection mode for detecting the presence of signals, the signal receiver having: a functional unit that can operate in two manners: a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and a controller for causing the functional unit to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode. | 03-17-2011 |
| 20120064853 | SYSTEM AND METHOD FOR MANAGING POWER CONSUMPTION IN A DEVICE - Systems and methods for managing power consumption in a device include toggling an ON-OFF setting of apparatus, which controls a carrier detector. The toggling is carried out according to a first duty cycle having a fixed OFF-time duration and a first dwell time having a first dwell time duration during which the carrier detector performs radio frequency carrier detection function. The device receives at least one input that affects the radio frequency carrier detection function, and the first duty cycle is changed to a second duty cycle. The toggling is carried out according to the second duty cycle, which has the same fixed OFF-time duration of the first duty cycle and a second dwell time having a second dwell time duration that is longer than the first dwell time duration, during which the radio frequency carrier detection function is performed. | 03-15-2012 |
| 20130102268 | CONTROLLING OPERATIONAL STATES OF A LOCATION SENSING SYSTEM OF A MOBILE DEVICE - Methods, systems and apparatuses for controlling a location sensing system of a mobile device are disclosed. One method includes collecting location related information of the mobile device. The method further includes controllably setting the mobile device to operate in one of a high-power state, a low-power state, or a transitional state based on the collected location related information, wherein a satellite-based positioning system receiver of the mobile device generates location information in the transitional state and in the on-state, and the satellite-based positioning system receiver does not generate location information in the low-power state. When operating in the transitional state, the mobile device repeatedly checks the collected location related information and transitions to the low-power state or the high-power state based on the collected location related information. | 04-25-2013 |
| 20130115908 | POWER MANAGEMENT OF RADIO TRANSCEIVER ELEMENTS - A radio receiver includes a power control module for selectively powering down and powering up radio receiver elements in between known communication periods according to one aspect of the present invention. According to a second aspect of the invention, the radio receiver operates in a low power mode of operation and periodically “sniffs” to determine whether an access point has messages or communication signals to transmit to it. | 05-09-2013 |
| 20130122848 | METHOD AND SYSTEM FOR WIRELESS COMMUNICATIONS BETWEEN BASE AND MOBILE STATIONS - A method and system for wireless communications between base and mobile stations use reference signals transmitted from base stations prior transmission of data signals. The reference signals are used to determine propagation characteristics of communication channels between me base and mobile stations and optimize, in real time, parameters of receivers of the mobile stations for processing the following data signals. Applications of the invention include wireless communication systems compliant with OFDMA, 3GPP LTE, RFN-OFDMA, OFDM, TDMA, and the like communication protocols. | 05-16-2013 |
| 20180027495 | WAKEUP SYSTEM AND METHOD FOR DEVICES IN POWER SAVING MODE | 01-25-2018 |
| 455343300 | Based on identification | 2 |
| 20090023416 | Mobile Radio Receiver Power Management Systems and Methods - According to some embodiments, an analog radio receiver circuit is configured alternatively in a full-power mode when the receiver is situated in a cradle and connected to an external power source, and in a power-saving mode when the receiver is not connected to the external power source. In the power-saving mode, a scaled-down power level is supplied to an analog radio signal processing circuit component such as an amplifier, filter, oscillator, or mixer. Scaling down the power supplied to analog circuit components allows reducing their power consumption, at the expense of degraded circuit performance (e.g. increased non-linearity and intermodulation, decreased filter selectivity). Switching between full-power and power-saving modes may be achieved by controlling the connection of internal nodes of the signal processing circuit to a power source, and/or inserting circuit components (e.g. resistors, active devices, filter poles) into the signal processing circuit. | 01-22-2009 |
| 20140080438 | IN-VEHICLE COMMUNICATION SYSTEM AND METHOD OF OPERATION - An in-vehicle communication system configured to receive signals from a transmitter configured to transmit periodically a time-reference signal and receiver specific information. An information transmission time of receiver specific information is timed relative to a reference transmission time of the time-reference signal. The system includes a receiver characterized as having a receiver identification value. The receiver is configured to operate from an off-state to an on-state during an information-expected time interval to receive receiver specific information. The information-expected time interval is determined based on a reception time of the time-reference signal and the receiver identification value. This provides a way to ensure that the transmitter only transmits messages when it knows the intended receiver is on. It also ensures that the receiver is on only when messages that for that receiver are expected to be received. | 03-20-2014 |
| 455343400 | Based on schedule information | 1 |
| 20080287091 | Method and System for Discontinuous Reception De-Synchronization Detection and Recovery - A method and apparatus for recovery from discontinuous reception desynchronization, the method having the steps of: determining a most recent time that an explicit message indicating a change from an old discontinuous reception period to a new discontinuous reception period was sent; adding to the most recent time that the explicit message was sent the old discontinuous reception period multiplied by an integer, where the integer is selected to ensure the results of the adding step occur after a present time; and sending a continuous reception command at the time found in the adding step. | 11-20-2008 |
| 455343500 | Battery saving based on detected power source level | 2 |
| 20110076980 | Optimizing Bias Points For A Semiconductor Device - In one embodiment, a method includes determining environmental conditions associated with operation of a chip having multiple device types, accessing a table stored in the chip based on the determined environmental conditions, and dynamically operating the chip at a bias point accessed from the table based on the determined environmental conditions. | 03-31-2011 |
| 20150011173 | DIGITAL RADIO SYSTEMS AND METHODS - A system, apparatus, method, and media directed to power control in the field of digital radio systems are provided. For example, an apparatus, method, or medium can be implemented to enter a radio into lower power mode, store radio programming with reduced functionality, and resume normal power mode. | 01-08-2015 |
