Having Particular Power Or Bias Supply (including Self-powered Or Battery Saving Means) Patents (Class 455/343.1)
  • Patent number: 8977325
    Abstract: The present invention provides a method and a system for processing cell sleeping. The method comprises: a cell sending a sleeping request message to a neighbor cell (S102); according to the sleeping request message, the neighbor cell sends a corresponding sleeping response message to the cell (S104); according to the sleeping response message, the cell decides to perform sleeping or not (S106). The present invention ensures the continuity of user communication.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: March 10, 2015
    Assignee: ZTE Corporation
    Inventors: Jianmin Fang, Feng He, Yin Gao
  • Patent number: 8977203
    Abstract: Of a wireless communication system, an RF tag which can operate normally even when a communication distance is extremely short, like the case where the RF tag is in contact with a reader/writer, whereby the reliability is improved. The RF tag which communicates data by wireless communication includes a comparison circuit which compares electric power supplied from outside with reference electric power and a protection circuit portion which is operated when the electric power supplied from outside is higher than the reference electric power in the comparison circuit.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: March 10, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kiyoshi Kato, Asami Tadokoro
  • Patent number: 8971837
    Abstract: A power status signal is received in an integrated circuit that indicates an inductive power status of an inductive power module and a power status of an alternative source. 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.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: March 3, 2015
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8971792
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: March 3, 2015
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • Patent number: 8959734
    Abstract: An interactive card or the like employs a piezoelectric charge generator (piezo-strip) for temporarily driving an indicator. The piezo-strip may be displaced (bent) in order to generate charge to drive the indicator. Printed electronic processes are utilized to produce the indicator and/or the piezoelectric charge generator. An indicator is formed on a substrate by way of a printed electronics process. A displaceable region of piezoelectric material associated with the said substrate is formed by way of a printed electronics process. Electrical interconnections are formed on said substrate by way of a printed electronics process. The electrical interconnections connecting said indicator and said first region of piezoelectric material such that displacement of said first region of piezoelectric material generates a voltage therein that is provided to said indicator in order to actuate said indicator and thereby indicate the displacement of said first region of piezoelectric material.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: February 24, 2015
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Jurgen H. Daniel, Tse Nga Ng
  • Patent number: 8958764
    Abstract: A method of and apparatus for detecting signal features including amplitude, phase and timing of recognizable input signals in a frequency band or spectrum of interest. One or more super-regenerative oscillators are provided, each having a center frequency and each detecting signal features of recognizable input signals in the frequency band or spectrum of interest during multiple, successive time slots. The center frequency of each of the one or more super-regenerative oscillators is varied between time slots in a selected sequence, preferably according to a Segmentlet algorithm. The one or more super-regenerative oscillators extract the signal features of each the recognizable input signals in different time slots and/or in different super-regenerative oscillator and with a different time-slot associated center frequency associated with the one or more super-regenerative oscillators, thereby providing a time-frequency-amplitude map of the frequency band or spectrum of interest.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: February 17, 2015
    Assignee: HRL Laboratories, LLC
    Inventors: Zhiwei Xu, Donald A. Hitko, Peter Petre
  • Patent number: 8953718
    Abstract: A receiver assembly for the wireless reception of data that are modulated onto a carrier signal includes an analog receiver, an evaluating device and a control device. The control device controls the receiver by means of sampling pulses such that the receiver is activated during the sampling pulses and is ready to receive transmission signals and is deactivated during the sampling pauses. The evaluating device generates a data bit sequence from the received signals that are supplied by the receiver during the sampling pulses. The control device is further designed to actuate the receiver between phases having differing sampling frequency ranges in dependence on at least one predefined switching criterion.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 10, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Frank Oehler, Heinrich Milosiu
  • Patent number: 8948083
    Abstract: An apparatus and method for reducing the power consumed by mobile communication terminal having a wireless LAN connection function. When a data communication operation is started, a control unit determines whether a connection to a wireless LAN is available, and if so, detects the battery remaining amount in a battery unit. If the battery remaining amount is equal to or greater than a first threshold, data communication is performed through the wireless LAN connection. When the battery remaining amount is smaller than the first threshold, a screen for recommending connection through cellular communication is displayed on a display unit. When the battery remaining amount becomes smaller than a second threshold, which is smaller than the first threshold, a power source control unit performs a predetermined power saving operation.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: February 3, 2015
    Assignee: Lenovo Innovations Limited (Hong Kong)
    Inventor: Hideaki Aihara
  • Patent number: 8942650
    Abstract: A power amplifier (PA) envelope power supply, radio frequency (RF) PA circuitry, and a process to select a converter operating mode of the PA envelope power supply based on linearity requirements of the RF PA circuitry is disclosed. The PA envelope power supply operates in one of a first converter operating mode and a second converter operating mode. The process for selecting the converter operating mode is based on a required degree of linearity of the RF PA circuitry. The PA envelope power supply provides an envelope power supply signal to the RF PA circuitry. Selection of the converter operating mode may provide efficient operation of the PA envelope power supply and the envelope power supply signal needed for proper operation of the RF PA circuitry.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: January 27, 2015
    Assignee: RF Micro Devices, Inc.
    Inventors: William David Southcombe, Chris Levesque, Roman Zbigniew Arkiszewski, David E. Jones, Scott Yoder, Terry J. Stockert
  • Patent number: 8942152
    Abstract: A network device may be provided with a PHY layer process unit, a determination unit configured to determine that a link state is a link up state or a link down state, and a first control unit configured to control an electrical power supply for the PHY layer process unit. The first control unit may be configured to stop a continuous electrical power supply for the PHY layer process unit if the determination unit determines that the link state is the link down state during a first period in which the continuous electrical power supply is being performed, perform a temporary electrical power supply for the PHY layer process unit during a second period, and commence the continuous electrical power supply if the temporary electrical power supply is performed during the second period and the determination unit determines that the link state is the link up state.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: January 27, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Ryosuke Tsuzuki
  • Patent number: 8934946
    Abstract: The present invention discloses a mobile power supply device. The mobile power supply device includes at least one expansion interface, at least one transmission interface, a charging control unit, a battery, and an expansion control unit. The transmission interface is used for electrically connecting to an electronic host device. The charging control unit is electrically connected to the transmission interface and to at least one external power supply. The battery is electrically connected to the charging control unit. The charging control unit is used for controlling the external power supply to charge the battery and for controlling the battery to charge the electronic host device. The expansion control unit is electrically connected to the expansion interface and the transmission interface; the expansion control unit communicates with the external device via the expansion interface and communicates with the electronic host device via the transmission interface.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: January 13, 2015
    Inventor: Li-Kuo Chiu
  • Patent number: 8934840
    Abstract: Systems, methods, and other embodiments associated with performing arbitration among a plurality of driver circuits in a communication device are described. According to one embodiment, an apparatus includes a first source configured to transmit first packets and a second source configured to transmit second packets. The arbiter logic is configured to input a thermal management mode that is selected based, at least in part, on a thermal consequence of simultaneous transmission of packets from the first source and the second source. The arbiter logic is configured to select either i) the first packets, ii) the second packets, or iii) both the first packets and the second packets for transmission based, at least in part, on the thermal management mode input by the arbiter logic.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 13, 2015
    Assignee: Marvell International Ltd.
    Inventors: Ken Yeung, Ashutosh Mishra, Harish Ramamurthy, Hao Zhang
  • Patent number: 8923174
    Abstract: A wireless apparatus that periodically sends notification signals, including: a determining module that determines, before sending the notification signal, whether a wireless channel is being used by a wireless device; a sending module that sends the notification signal if the wireless channel is not used throughout a first period; a receiving module; a controller that controls the receiving module to be able to receive a signal until a lapse of a second period after transmission of the notification signal; and a suspending module that suspends supply of power to the receiving module if a signal is not received in the second period and the number of wireless devices that can communicate with the apparatus is zero. If the receiving module receives a signal in the second period, the controller controls the receiving module to be able to receive a signal after a lapse of the second period.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: December 30, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Toshimitsu, Masahiro Takagi
  • Patent number: 8923795
    Abstract: Systems, methods, and devices for activating an implantable medical device from a low-power sleep state are provided. One method includes receiving a wake-up signal at a receiver device from a transmitter device. The wake-up signal includes a series of pulses having a pulse pattern encoding a predetermined wake-up code. The wake-up signal is transmitted via intracorporeal communication of electrical pulses conducted by interstitial tissues of a patient's body. The method further includes extracting the wake-up code from the wake-up signal and determining whether the wake-up code corresponds to a stored wake-up value. The method further includes, in response to determining that the predetermined wake-up code corresponds to the stored wake-up value, switching at least one active circuit element of the receiver device from a lower-power sleep state into a higher-power operational state.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 30, 2014
    Assignee: Sorin CRM SAS
    Inventors: Alaa Makdissi, Karima Amara, Ashutosh Ghildiyal
  • Patent number: 8917642
    Abstract: An application to be booted is selected and operation of the application is controlled according to status of a link between an access point and a station. A station (STA) which can be connected to an access point (AP) includes a link information obtaining procedure which obtains link information including an identifier of the AP to which the STA is connected while the STA is connected to the AP and an application control procedure which selects an application to be booted according to the link information by referring to an action profile in which an identifier of the link information and an application to be booted are related and registered.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 23, 2014
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Makoto Umeuchi, Tomohiro Tokuyasu, Takefumi Hiraguri, Toshihiro Manabe
  • Patent number: 8913536
    Abstract: The present invention provides a DRX control method and system in which power consumption of a mobile station can be reduced and an increase in the load of a network can be suppressed. A source base station forwards Dormancy Context, which is information for controlling the activity level of a mobile station that performs inter base station handover, to a target base station and, immediately after the mobile station completes handover, the target base station performs DRX control of the mobile station using the Dormancy Context.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 16, 2014
    Assignee: NEC Corporation
    Inventors: Hisashi Futaki, Jinsock Lee
  • Patent number: 8909304
    Abstract: A quality-of-service enhanced access point (QAP) is provided. The QAP includes a signaling module that receives call signaling information and transmits a timing offset for a quality-of-service enhanced station (QSTA). A call offset scheduler module determines the timing offset based on the call signaling information. A buffer buffers data addressed to the QSTA, and a wireless local area network (WLAN) driver module automatically transmits at least a portion of the buffered data to the QSTA based on the timing offset.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: December 9, 2014
    Assignee: Marvell International Ltd.
    Inventors: Sandesh Goel, Partho Mishra
  • Patent number: 8909306
    Abstract: Systems, methods, and apparatus are disclosed for conserving battery power in a user equipment (UE) by idling the modem when it is not needed in an active state. Idling can occur (1) between a user request for content and the start of the content download; (2) after the content download; and (3) after additional dynamic content has been downloaded, further scripting has finished, or UE data has been uploaded to the network, but before another user request for content has been made. Grace timers can be used before the second and third opportunities to ensure that the modem is not idled while still in use, but also to minimize the time that the modem is in an active state but not being used. These timers can be fixed or dynamic and their duration based on historical trends or testing of particular content or content types.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: December 9, 2014
    Assignee: Qualcomm Innovation Center, Inc.
    Inventors: Kavitha Vallari Devara, Ashfaque Mansur, Shyama Prasad Mondal
  • Patent number: 8903349
    Abstract: 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.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: December 2, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Bengt Lindoff, Fredrik Nordström
  • Patent number: 8903348
    Abstract: An interface between an RF processing section and a baseband processing section supports general purpose message transmission as well as satellite positioning system signal sample transmission between the RF processing section and the baseband processing section. The interface includes a bi-directional message interface and a data interface. The message interface supports transmission of power control messages to the RF processing section to provide detailed control over activation or de-activation of individual blocks of hardware circuitry in the RF processing section.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: December 2, 2014
    Assignee: CSR Technology Inc.
    Inventors: Steve Gronemeyer, Robert Tso
  • Patent number: 8903439
    Abstract: An apparatus and method are provided for communicating in a network in which interference exists between wireless communication systems. The apparatus includes multiple transceivers for individually communicating with base stations of the multiple wireless communication systems; and a controller for negotiating with at least one of the base stations, setting a non-communication period with a negotiated base station, and communicating with the negotiated base station during the non-communication period, based on whether an interference level between wireless signals communicated through the multiple transceivers falls within a predetermined range.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sang-Yun Hwang, Jin-Woo Roh, Seo-Goo Lee
  • Patent number: 8903460
    Abstract: A Bluetooth communication system includes a remote device, having a first Bluetooth module, and a user device, having a second Bluetooth module, and communicating with the remote device through the first Bluetooth module and the second Bluetooth module in a link state. When the remote device and the user device are over a communication range, the remote device enters an access state. In the access state, the first Bluetooth module re-communicates with the second Bluetooth module by a link back mode in a first time interval and a standby mode in a second time interval and when the remote device comes back with the communication range, the communication with the user device is recovered.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: December 2, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Rong-Chin Yang, Yu-Min Wu, Yung-Ming Chung, Chih-Hsiung Yu
  • Patent number: 8903310
    Abstract: A wireless communication apparatus is capable of generating a gain/noise characteristics control signal for an amplifier and a filter without degrading an amount of electrical power, or distance information contained in the electrical power. The wireless communication apparatus includes: a rectifier circuit; a circuit power supply for receiving electrical power from the rectifier circuit so as to supply required electrical power; a sampling circuit for performing sampling on an output of the rectifier circuit; a discrete filter capable of performing discrete processing on an output of the sampling circuit so as to selectively remove a frequency component contained in the output of the sampling circuit; and power control for controlling a bias required for a radio transmitter and/or a radio receiver based on the DC component output from the discrete filter.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: December 2, 2014
    Assignee: NEC Corporation
    Inventor: Haruya Ishizaki
  • Patent number: 8902802
    Abstract: Disclosed are a terminal device for receiving a signal in a wireless communication system for supporting a plurality of component carriers and a method thereof. In the terminal device for receiving the signal in the system for supporting the component carriers, a receiver receives a Physical Downlink Control Channel (PDCCH) including control information of a first type component carrier from a base station or a relay. A processor performs a decoding operation or controls an operation in a slip mode on the basis of control information included in a PDCCH in a second type component carrier after a time corresponding to a particular time offset value passes from a transmission time point of the PDCCH.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: December 2, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Sung Ho Moon, Jae Hoon Chung, Seung Hee Han, Yeong Hyeon Kwon, Han Gyu Cho
  • Patent number: 8903444
    Abstract: Disclosed are methods, apparatus, computer readable media and other implementations, including a method for communicating network information. The method includes transmitting a request message from a mobile device to an access point, and receiving, at the mobile device, a reply message transmitted from the access point in response to receiving the request message, the reply message including data representative of a transmitted signal power level at the access point of the reply message. The method further includes determining, based on the received reply message including the data representative of the transmitted signal power level at the access point, a received signal power level at the mobile device of the reply message, and a round trip time from a first time instance when the request message was transmitted from the mobile device to a second time instance when the reply message was received at the mobile device.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: December 2, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Sridhara, Rajarshi Gupta
  • Patent number: 8897736
    Abstract: A mobile communication terminal device whose authentication and settlement functions by noncontact proximity communication can be continuously used even after operating voltage from battery power drops is provided. Only when the supply of required power from a battery is lost, a security controller is controlled into a mode in which it operates with low power consumption and noncontact authentication and settlement functions are ensured by external electromagnetic field power. Specifically, the following is implemented: when there is the supply of required power from the battery, it is made possible to carry out high-performance, multifunctional authentication and settlement processing making good use of high-speed processing, mass storage, and the like which are the advantages of the security controller essentially driven by battery; and in an anomalous instance in which the battery remaining capacity is lost, it is made possible to carry out minimal authentication and settlement processing.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: November 25, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Shigemasa Shiota, Kunihiro Katayama, Shinichi Fukasawa, Takeo Kon, Seiji Kobayashi
  • Patent number: 8886132
    Abstract: The disclosure relates to controlling the operational mode of a radio in a wireless device, with an aim to reducing power consumption. A method of controlling the operational mode of a radio in a wireless device, includes executing at least one application, that provides access information for use by radio control logic to determine an operational mode of a radio, where the said access information defines usage of the radio by that application.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: November 11, 2014
    Assignee: Skype
    Inventors: Mingyu Chen, Christoffer Rodbro, Soren Vang Andersen
  • Patent number: 8886258
    Abstract: A wireless communication device (200) is disclosed. It can include: an electronic device (210) including a display (240); a wearable device (242) including a first orientation detector (244) configured to detect a suitable display viewing orientation; and a controller (220) including a power saving module (290) coupled to the electronic device (210), the controller (220) configured to control the operations of at least the display (240) in response to a suitable orientation detection. Advantageously, the wireless communication device (200) can provides a simple, portable, compact and robust power savings feature that can actuate a display when properly orientated for viewing by a user and not actuate the display when not suitably oriented.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: November 11, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Rachid M Alameh, Gregory R. Black, Daniel J Sadler
  • Patent number: 8880127
    Abstract: A system and method are disclosed for decreasing the amount of power consumed by a wireless signal receiver in a wireless device. Received data is communicated from the receiver to a play-out buffer in communication with a media play-out device. The level of data in the play-out buffer increases when received data is written to the buffer, and the level of data decreases when data is read from the buffer. If the level of data is above a first watermark level, the receiver is transitioned to a sleep mode while data is read from the buffer. When the level of data in the buffer falls below a second watermark level, the receiver is transitioned back to an active mode to receive data. The device communicates status messages (whether the receiver is asleep or active) to the transmitting device so that the transmitting device stops transmitting data when the receiver is in sleep mode, and transmits data when the receiver is in the active mode.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 4, 2014
    Assignee: Marvell International Ltd.
    Inventors: Rahul Kopikare, Sandesh Goel, Pierre Vandwalle, Partho Mishra
  • Patent number: 8880011
    Abstract: Aspects of a system for improving efficiency over power control for linear and class AB power amplifiers may include a current source circuit that enables determination of a bias current level for a PA circuit within an IC die based on an amplitude of an input modulation signal. The PA circuit may enable generation of an output signal based on a differential input signal and the input modulation signal to the current source circuit. A generated bias voltage may be applied to a transformer external to the IC die, but internal to an IC package containing the IC die and/or a circuit board containing the IC package. One or more amplifier bias voltage levels may be applied to the PA circuit wherein the amplifier bias voltage levels may be derived from the generated bias voltage level and/or the determined bias current level.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 4, 2014
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8874065
    Abstract: The described apparatus and methods may include a receiver configured to receive a control signal, and a controller configured to regulate power consumption of the receiver during intervals of less than one radio frame based on the control signals. The controller may also be configured to regulate power consumption of a transmitter during intervals of less than one radio frame based on the control signal.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: October 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Chengzhi Pan, Joseph Patrick Burke, Christian Holenstein
  • Patent number: 8868023
    Abstract: 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.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: October 21, 2014
    Assignee: 3D Radio LLC
    Inventor: Michael D. Ellis
  • Patent number: 8868001
    Abstract: Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: October 21, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyeyeon Kwon, Kyung Yul Cheon, Mi Jeong Yang, Aesoon Park
  • Patent number: 8868139
    Abstract: An integrated circuit including a transceiver module that receives beacons from an access point (AP), and transition a wireless network device to an active mode based on: a predetermined beacon interval; and a first predetermined period prior to one of multiple beacons. A timestamp module calculates a first correction value based on a first timestamp received from the AP. An adjustment module adjusts the first predetermined period based on the first correction value. A beacon module detects a beacon missed during an inactive mode by the transceiver module. The timestamp module transmits a probe request signal to the AP a second predetermined period after detection of the missed beacon, receives a second timestamp from the AP in response to the probe request signal, and recalculates the first correction value based on the second timestamp. The adjustment module adjusts the first predetermined period based on the recalculated first correction value.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 21, 2014
    Assignee: Marvell World Trade Ltd.
    Inventors: Kapil Chhabra, Sandesh Goel, Zhenyu Zhang
  • Patent number: 8861412
    Abstract: The specification and drawings present a new method, apparatus and software related product for avoiding UL interference in a victim LPN such as femtocell using DRX by the LPN coordinated with the UL DTX of UEs to the LPN and to one or more HPNs such as NBs (or Home NB), e.g., in HSPA systems. The victim LPN may start DRX having ON and OFF periods. Then the LPN sends information about DRX to its UEs (LUEs) communicating with the LPN, and to one or more network elements such as aggressor HPNs' RNCs. The network element(s) are adapted to identify and configure aggressor UEs (HUEs) communicating with one or more HPNs of the network for coordinating ON and OFF periods of the DRX by the LPN with transmissions of the LUEs and the HUEs to avoid interference during the OFF periods of the DRX in the LPN.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: October 14, 2014
    Assignee: Broadcom Corporation
    Inventors: Tao Chen, Christopher Peter Callender, Arto Lehti, Soni Koul
  • Patent number: 8861413
    Abstract: There are provided measures for enabling power control for inter-band multi-carrier capable devices, such as e.g. inter-band carrier aggregation capable devices. Such measures may exemplarily include calculating at least one output power restriction value for a cumulative output power for a combination of at least two uplink carriers of a terminal device, said two uplink carriers operating on different bands, signaling the calculated at least one output power restriction value to the terminal device, and performing power control for the at least two uplink carriers using the acquired at least one output power restriction value at the terminal device.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: October 14, 2014
    Assignee: Broadcom Corporation
    Inventors: Antti Oskari Immonen, Jouni Kristian Kaukovuori, Tero Henttonen, Seppo Rousu
  • Patent number: 8855588
    Abstract: A power amplifying apparatus is provided. A reference signal generator provides a reference signal having an enabling state and a disabling state. A digital power amplifier generates a current based on the reference signal and an input signal. An output signal of the digital power amplifier is related to the current. When the reference signal is in the enabling state, the current is related to the input signal. When the reference signal is in the disabling state, the current is irrelevant to the input signal. During the enabling state of the reference signal, a data generator provides an output alternating between an in-phase signal and a quadrature-phase signal as the input signal to the digital power amplifier. When the reference signal is in the disabling state, the data generator provides a fixed signal as the input signal to the digital power amplifier.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 7, 2014
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chih-Ming Hung, Zhong-Xuan Zhang, Sheng-Che Tseng
  • Patent number: 8855087
    Abstract: A computing device configurable as a wireless network access point that can be controlled from multiple applications. The computing device provides an interface through which applications may input commands to change the state of the access point. The interface responds to these commands and other events, such as association or disassociation of a wireless client, in a manner that does not disrupt the applications or devices using the access point. To determine an appropriate response to any event, the interface may maintain state information, including a count of the number of applications and/or wireless devices that have taken action indicating an operating state of the wireless access point.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: October 7, 2014
    Assignee: Microsoft Corporation
    Inventors: Anirban Banerjee, David A. Roberts, Hui Shen, Shawn Jiang, Saurabh Mahajan, Chris Gual
  • Patent number: 8849360
    Abstract: A system for communicating with a wireless-enabled device. The system comprises an input for receiving from the device a signal indicative of the device being in a de-powered operational state; a functional entity configured to determine, on a basis of (i) knowledge that the device is in the de-powered operational state and (ii) context information regarding the device, a certain action to be taken by the device while in the de-powered operational state; and an output for causing transmission of a message to the device, wherein the message is for causing the device to take the certain action while in the de-powered operational state.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: September 30, 2014
    Assignee: Avaya Inc.
    Inventors: Alan F. Graves, Raymond Bruce Wallace, Guy Michael Amyon Farquharson Duxbury
  • Patent number: 8843162
    Abstract: Exemplary methods and systems are disclosed herein that may, among other benefits, help a mobile station to conserve power by intelligently determining how often to scan for incoming pages. An exemplary method may be carried out by a mobile station that has most-recently registered with a radio access network in a zone of last registration, and involves the mobile station (a) determining a location of the mobile station in relation to the zone of last registration, (b) using the location of the mobile station in relation to the zone of last registration as a basis for determining a scan period to wait between scans of the paging channel; and (c) periodically scanning the paging channel according to the determined scan period. Furthermore, an exemplary method may be carried out in order to conserve battery power when a mobile station determines that its battery power is low.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: September 23, 2014
    Assignee: Sprint Spectrum L.P.
    Inventors: Siddharth S. Oroskar, Sachin R. Vargantwar, Jasinder P. Singh, Maulik K. Shah
  • Patent number: 8831553
    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.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: September 9, 2014
    Assignee: Atmel Corporation
    Inventors: Tilo Ferchland, Eric Sachse, Rolf Jaehne
  • Patent number: 8818460
    Abstract: A mobile terminal including a first wireless communication module; a second wireless communication module; a display unit configured to display an activated screen of a specific application when the specific application is activated; a memory configured to store a control value indicating which specific wireless communication module among the first and second wireless communication modules is to be used when the specific application is activated; and a controller configured to receive an activation signal indicating an activation of the specific application, automatically activate the specific wireless communication module designated by the control value stored in the memory when the specific application is activated, and deactivate the specific wireless communication module, when the specific application is deactivated.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 26, 2014
    Assignee: LG Electronics Inc.
    Inventors: Daeun Kim, Jinhwa Joung
  • Patent number: 8811897
    Abstract: An NFC device according to the present invention includes the following units. An antenna unit receives radio waves from a reader/writer by NFC. A first power source unit generates power from the radio waves. A second power source unit is a drive power source. A power-supply state holding unit holds information indicating a power-supply state of the second power source unit. An NFC unit performs NFC via the antenna unit to transmit the information indicating the power-supply state of the second power source unit. A power source switch unit switches the second power source unit to the first power source unit according to the power-supply state of the second power source unit, in order to supply power to activate at least the NFC unit and the power-supply state holding unit.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: August 19, 2014
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Michihiro Matsumoto, Mitsuaki Oshima, Masaru Yamaoka, Shohji Ohtsubo, Masao Nonaka
  • Patent number: 8811930
    Abstract: A powerless/wireless peripheral device is disclosed that engages in wireless communication such as near field communication (NFC) and/or far field communication with other communication devices capable of NFC and/or far field communication. The powerless/wireless peripheral device harvests power from the NFC and/or far field communication and operates of the harvested power eliminating the need for an internal battery and/or an external power supply. The powerless/wireless peripheral device supplements a computing device in enabling an operator to interact with the computing device. The powerless/wireless peripheral device is inexpensive, portable and easy to use.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 19, 2014
    Assignee: Broadcom Corporation
    Inventor: Aram Nahidipour
  • Patent number: 8811929
    Abstract: A method for managing power of a battery-powered handheld audio device by receiving an indicia of signal quality for a received continuous-time radio signal. The method compares the indicia of signal quality to a signal quality threshold. Upon a favorable comparison, enacting a first analog signal conditioning setting. Upon an unfavorable comparison, enacting a second analog signal conditioning setting. The method further provides, upon the favorable comparison, disabling a digital filtering operation, and upon the unfavorable comparison, enabling the digital filtering operation.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: August 19, 2014
    Assignee: Sigmatel Inc.
    Inventors: Jon David Hendrix, Michael R. May
  • Patent number: 8811931
    Abstract: According to one embodiment, a radio apparatus includes: a radio unit; a timer configured to count a first measurement time; a control unit configured to establish a first mode if the first measurement time is shorter than a first time, and establish a second mode if the first measurement time is longer than or equal to the first time; and a power control unit configured to control power to be supplied to the radio unit if the first mode is set and next data is not received even if a second time elapsed, and control power to be supplied to the radio unit if the second mode is set and next data is not received even if a third time elapsed, wherein the radio unit makes a transition to a sleep mode as a result of a power control by the power control unit.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: August 19, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Tomizawa, Tomoya Tandai, Ryoko Matsuo
  • Patent number: 8805274
    Abstract: An architecture and protocol enables signal communications between either a frequency translation module and a decoder within a dwelling, or between an antenna and a decoder within a dwelling. According to an exemplary embodiment, the decoder comprises a switch 33 between the low noise block converter power supply, and a transceiver and output coupling. The switch 33 generates a high impedance during operation of the frequency translation module and the LNB power supply 38, thereby isolating the transceiver and the output coupling from the LNB power supply. The switch generates a low impedance between the LNB power supply and the transceiver and output coupling during operation of the LNB power supply.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: August 12, 2014
    Assignee: Thomson Licensing
    Inventors: John James Fitzpatrick, Lincheng Xiu
  • Patent number: 8797911
    Abstract: A wireless communications power saving method and apparatus is provided. The method includes establishing a circular buffer configured to maintain a number of most recently encountered frame delay times and waiting a frame delay time after receiving a further frame before the station enters a power save state. Frame delay time is a period equal to a largest most recently encountered frame delay period in the circular buffer. The method further determines, at a station, a dormancy time based on a number of data frames received since the station transitioned from an inactive mode to an active mode, a packet transmission rate, and a data frame time interval representing time between data frames received at the station, and causes the station to switch to a further inactive mode if a next packet is not received within the dormancy time after receipt of a previous packet.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: August 5, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Linhai He, Rashid A. Attar, Christopher G. Lott, Donna Ghosh, Chaitanya Mannemala, Sunit Bhatia, Sudheer Konda, Gopal Chillariga
  • Patent number: 8798537
    Abstract: Disclosed herein is a wireless power transmitter for solving a problem that a collision occurs when recognizing an initial wireless power receiver in two-way communication of wireless power transmission. A wireless power transmitter according to a first embodiment disclosed herein may include a transceiver configured to transmit and/or receive a message to and/or from a wireless power receiver; and a controller configured to control the transceiver to transmit a message for requesting identification information to the wireless power receiver, and determine whether the identification information is validly received from the wireless power receiver by the transceiver in response to the identification information request, and control the transceiver to transmit a message for requesting sleep mode switching to the wireless power receiver when the identification information is validly received by the transceiver.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: August 5, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jaesung Lee, Dohyeon Son, Yongcheol Park, Jeongkyo Seo, Seonghun Lee
  • Patent number: 8798571
    Abstract: The present invention relates to a power management method for portable computers with a wireless device and detects the electric power source of a portable computer through a power source detection circuit during the operation of portable computer. In addition, any one of the following is dynamically changed: the supporting rate of the connection interface between a wireless device and the portable computer, the data rate between the AP (Access Point) and the wireless device. Moreover, the invention provides a plurality of input methods for triggering the power saving modes of the portable computer to achieve the object of reducing power consumption.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: August 5, 2014
    Assignee: Via Technologies Inc.
    Inventors: Chien Yi Shih, Jung Tsan Hsu