Class / Patent application number | Description | Number of patent applications / Date published |
342357740 | Power consumption | 23 |
20100271260 | POWER-SAVING POSITION TRACKING DEVICE - A power-saving position tracking device includes a central processing unit; a short-distance wireless communication unit, for establishing a wireless connection with a short-distance wireless transceiver to perform a position tracking; a GPS receiving unit, for receiving a satellite signal for performing a position tracking and outputting position information; a mobile communication unit, for transmitting the position information to a remote control center. If a signal intensity of a wireless connection between the power-saving position tracking device and the short-distance wireless transceiver is greater than a threshold, the GPS receiving unit and the mobile communication unit will enter into a power saving mode; on the other hand, if the wireless connection signal intensity is smaller than the threshold, the short-distance wireless communication unit will enter into the power saving mode to achieve the power-saving effect. | 10-28-2010 |
20100277367 | METHOD AND DEVICE TO DETERMINE OUT OF COVERAGE FOR MOBILE DEVICES - A method and a mobile device configured to obtain position information from a position broadcast system, the position broadcast system comprising a plurality of transmitters that each broadcast a respective signal containing position information for the respective transmitter. The method comprising: measuring signal strengths of signals from a plurality of the transmitters of the position broadcast system; and determining that the mobile device is out of range of the position broadcast system if the measured signals strengths satisfy at least one out of range criterion. | 11-04-2010 |
20100328153 | APPARATUS FOR SATELLITE TELECOMMUNICATIONS - A mobile communication device includes a GPS system and a communication system through a low-earth orbit communication satellites or geosynchronous satellite. The processing system periodically calculates from GPS a current position which is compared to a saved position and saved if the amount of movement is greater than a set distance and also transmits each calculated position. In order to reduce power consumption, in the event that at least one and preferably several calculated differences between the current position and the previously saved position is less than the predetermined set distance, the processing system is placed in an idle mode in which position is transmitted at a lower frequency. The position is periodically calculated and as soon as the position changes the system is returned from idle. In order to keep remote recipients informed signals indicating entry into and return from the idle mode are transmitted with the position signals. | 12-30-2010 |
20100328154 | CONTROLLING A GPS RECEIVER BY DETECTING MOTION BASED ON RADIOFREQUENCY SIGNAL TRACES - Operation of a GPS receiver on a wireless communications device is controlled by determining whether the device is stationary or in motion. Motion determination is accomplished by analyzing radiofrequency signal traces, e.g. GSM signal traces, received from one or more nearby base stations. A three-tiered analysis provides a progressively more accurate determination as to whether the device is moving or stationary while providing, in certain instances, a more rapid determination than prior-art techniques. When the device is determined to be stationary, the GPS receiver can be deactivated. When the device is determined to be moving, the GPS receiver can be reactivated. | 12-30-2010 |
20110018764 | METHOD AND SYSTEM FOR SHARING CLOCK SOURCES TO SAVE POWER ON A GNSS ENABLED MOBILE DEVICE - A GNSS enabled mobile device selects an associated local GNSS clock or host clock as a clock source to operate a GNSS radio and one or more non-GNSS radios within the GNSS enabled mobile device. When the GNSS radio is in a GNSS active mode, the local GNSS clock is turned ON and selected to be shared with the host. The host operates the GNSS radio and the non-GNSS radios only using the local GNSS clock instead of the host clock. The host clock is turned OFF to save power. When the GNSS radio is in a GNSS inactive mode, the host clock is turned ON and selected to operate the non-GNSS radios. The local GNSS clock is turned OFF to save power. The non-GNSS radios comprise a Bluetooth radio, a WiFi radio, a FM radio, a cellular radio and/or a WiMAX radio. | 01-27-2011 |
20110205115 | Always on GPS Device - A wireless device including a transceiver that utilizes a power supply is described. The wireless device includes a Global Positioning System (“GPS”) section having a plurality of GPS subsystems and a power controller in signal communication with the power supply and GPS section, wherein the power controller is configured to selectively power each GPS subsystem from the plurality of GPS subsystems. | 08-25-2011 |
20110316741 | CONTROL AND FEATURES FOR SATELLITE POSITIONING SYSTEM RECEIVERS - Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a system for mode switching between a navigational signal; and power control module for receiver. | 12-29-2011 |
20120001800 | Method and apparatus for detecting position - A position detecting apparatus includes a GPS receiver configured to catch one or more of GPS satellites and track one or more of the satellites while receiving a GPS signal or GPS signals from one or more of the satellites. A power supply controllably feeds power to the GPS receiver. A suspension time decider decides a suspension time in accordance with at least one of (1) the number of satellites caught by the GPS receiver and (2) the level of at least one of the received GPS signals, and determines whether or not the lapse of time during which the GPS receiver continues to track no satellite reaches a prescribed time. A suspension controller controls the power supply to suspend the power feed to the GPS receiver during a term equal in length to the decided suspension time in cases where the lapse of time reaches the prescribed time. | 01-05-2012 |
20120068886 | GLOBAL POSITIONING SYSTEM TRACKING DEVICE - A global positioning system (GPS) tracking device that includes a casing including a GPS transmitting and receiving unit configured to transmit and receive GPS signals including GPS routing information; a signal amplifying unit coupled with the GPS transmitting and receiving unit and configured to amplify cell signals; and a timing unit configured to receive power from an external power supply unit and to control power supply to the GPS transmitting and receiving unit and the signal amplifying unit for a predetermined time period | 03-22-2012 |
20120223861 | CONTROLLING A GPS RECEIVER BY DETECTING MOTION BASED ON RADIOFREQUENCY SIGNAL TRACES - Operation of a satellite-based navigation-signal broadcast system receiver, such as a GPS receiver, on a wireless communications device is controlled by determining whether the device is stationary or in motion. Motion determination is accomplished by analyzing radiofrequency signal traces, e.g. GSM signal traces, received from one or more nearby base stations. A three-tiered analysis provides a progressively more accurate determination as to whether the device is moving or stationary while providing, in certain instances, a more rapid determination than prior-art techniques. When the device is determined to be stationary, the GPS receiver can be deactivated. When the device is determined to be moving, the receiver can be reactivated. | 09-06-2012 |
20130099971 | INFORMATION PROCESSING APPARATUS, RECEPTION INFORMATION SERVER, INFORMATION PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM - There is provided an information processing apparatus including a satellite positioning unit that performs positioning based on a positioning signal received from a positioning satellite, an environment information acquiring unit that acquires environment information unique to a current location, a reception information acquiring unit that acquires reception information indicating a state of the positioning signal at the current location based on the environment information, and an operation condition setting unit that sets an operation condition of the satellite positioning unit based on the reception information. | 04-25-2013 |
20130314278 | MOBILE TERMINAL AND GPS ENGINE CONTROL METHOD THEREOF - A method of controlling a mobile terminal, and which includes turning on, via a controller of the mobile terminal, a global positioning system (GPS) engine to measure a position of the mobile terminal and provide a position-related service using the position measured by the GPS engine; sensing, via a sensor of the mobile terminal, a movement characteristic of the mobile terminal; temporarily turning off the GPS engine when the sensed movement characteristic of the mobile terminal is below a predetermined threshold; and turning back on the GPS engine when then sense movement characteristic is greater than or equal to the predetermined threshold. | 11-28-2013 |
20130314279 | ELECTRONIC DEVICE - An electronic device that has a host device, includes: a positioning processing portion that positions the host device based on a signal from a satellite; and a positioning control portion that performs a back positioning control operation of intermittently performing the positioning as back positioning in a specific time period including an off-period in which power of the host device is off Here, the positioning control portion compares a time difference between a time when a preceding round of positioning is successfully performed with respect to a starting time of the specific time period and the starting time of the specific time period with a predetermined first reference time, and prevents a start of the back positioning control operation when the time difference is equal to or more than the first reference time. | 11-28-2013 |
20140184444 | COMMUNICATION DEVICE AND SWITCHING METHOD - An antenna receives a radio wave transmitted from a GPS satellite. A wireless processing unit extracts positioning information from a signal of the radio wave received by the antenna. The positioning unit performs positioning on the basis of the positioning information extracted by the wireless processing unit. A transformer circuit includes a switching element and transforms supplied power to a predetermined voltage. A switching unit switches the transformer circuit to a stop state during an extraction period in which the positioning information is extracted by the wireless processing unit. | 07-03-2014 |
20140253377 | POWER CONSERVATION METHODS TO UPDATE A POSITION FIX OF A MOBILE LOCATION TRACKING DEVICE - Power conservation methods can be used to update a position fix of a mobile location tracking device configured to be tracked by a location tracking server. The mobile location tracking device can have a memory to store a zone map. The zone map can include an expected zone and a restricted zone. Each zone can have a profile that helps to determine power conservation behaviors of the system. | 09-11-2014 |
20140285377 | POSITIONING PROCESSING APPARATUS, POSITIONING PROCESSING METHOD, AND RECORDING MEDIUM - A present invention relates to a positioning processing apparatus including: an orbit information receiving unit that receives Ephemeris relating to an orbit of a GPS satellite from the GPS satellite; a predicted orbit information receiving unit that receives a predicted value of the Ephemeris via a network from a server in which the Ephemeris is accumulated in advance; a power feeding unit that performs control relating to electric power supply; a first determination unit that determines a state of electric power supply; a selection unit that selects the orbit information receiving unit or the predicted orbit information receiving unit based on the state of electric power supply determined; and a positioning unit that performs positioning based on the Ephemeris or a predicted value of the Ephemeris received by the orbit information receiving unit or the predicted orbit information receiving unit selected by the selection unit. | 09-25-2014 |
20150070214 | INFORMATION ACQUISITION DEVICE, POSITIONAL INFORMATION STORAGE METHOD AND STORAGE MEDIUM - An information acquisition device includes: a positioning unit that measures a current position and acquires positional information thereof; an information acquisition unit that acquires information; a storage unit that stores information acquired by the information acquisition unit and positional information acquired by the positioning unit; and a control unit that causes the positioning unit to perform positioning, while the information acquisition unit is activated, at an interval shorter than while the information acquisition unit is stopped, and causes positional information acquired while the information acquisition unit is activated, outside a time period determined in advance with a time in which acquisition of information was performed by the information acquisition unit as a reference point, among positional information acquired in the positioning unit, to be thinned and stored in the storage unit. | 03-12-2015 |
20150123847 | LOW POWER POSITIONING TECHNIQUES FOR MOBILE DEVICES - Techniques for managing power consumption of a Global Navigation Satellite System (GNSS) receiver of a mobile device are provided. These techniques include a method that includes deriving a GNSS search window for the GNSS receiver based on a position uncertainty (PUNC) and a time uncertainty (TUNC), selecting a GNSS search mode based on the GNSS search window and resources available for searching for signals from GNSS satellite vehicles (SVs), wherein an estimated power consumption associated with execution of a GNSS search associated with the GNSS search mode does not exceed a power consumption limit specified for the GNSS receiver conducting the GNSS search using the GNSS search mode, and estimating a position of the mobile device. | 05-07-2015 |
20150123848 | SATELLITE SIGNAL RECEIVER - A satellite signal receiver has a positioning error in a range from −8 m to +8 m with a probability equal to or more than 95% when positioning in a reception environment with a signal strength equal to or more than −135 dBm and average power consumption from start of positioning to first positioning equal to or less than 7 mW. | 05-07-2015 |
20150145725 | NAVIGATION DEVICE AND CONTROL METHOD FOR REDUCING POWER CONSUMPTION THEREOF - A navigation device includes an antenna to receive a satellite signal, a control unit to control provision of the satellite signal, an amplifier circuit for amplification of the satellite signal, and a positioning unit to position the navigation device based upon the satellite signal. When the navigation device has been successfully positioned, the control unit disables the amplifier circuit, and provides the satellite signal to the positioning unit for position calculation. | 05-28-2015 |
20160011317 | ARCHITECTURE FOR POWER CONSUMPTION REDUCTION IN GNSS RECEIVERS | 01-14-2016 |
20160154115 | GNSS ARCHITECTURE | 06-02-2016 |
20160195619 | ADAPTIVE GNSS POWER SAVING CONTROL | 07-07-2016 |