Patents Examined by Ping Hsieh
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Patent number: 8385846Abstract: An isolation circuit includes a low dropout operational current control loop and a shunt regulator. The current control loop is configured to drive the shunt regulator to result in a high dynamic impedance ratio between a voltage source and a load. The current control loop may include a series-pass transistor, a current sensing resistor, and a high side current sensor.Type: GrantFiled: February 21, 2012Date of Patent: February 26, 2013Assignee: Audiovox CorporationInventor: Jorgen Andersen
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Patent number: 8380126Abstract: A method and apparatus for connectivity management of a wireless device is provided, such as a wireless medical device. The method comprises providing a wireless connection between at least two medical devices, the at least two medical devices comprising a primary medical device and a secondary medical device, causing the primary medical device to transmit and the secondary medical device to receive state signals wirelessly across a plurality of communication data channels, and reporting a non-active state for one of the plurality of data channels from the primary medical device to the secondary medical device using the plurality of communication data channels.Type: GrantFiled: October 13, 2005Date of Patent: February 19, 2013Assignee: Abbott Medical Optics Inc.Inventors: Dung Ma, Fred Lee
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Patent number: 8369778Abstract: The portable object is equipped with an antenna inductively coupled to a fixed station of a remote transmission device. The portable object comprises a variable load impedance and a rectifier connected in parallel to the terminals of the antenna, a regulation loop of the voltage at the terminals of the load impedance, connected between the output of the rectifier and a control terminal of the load impedance. The regulation loop comprises, in series, means for determining a difference between a setpoint voltage and the output voltage of the rectifier, a one-bit analog-to-digital converter, and command means of integrator type. The command means comprise a gain control input connected to an output of the gain control means receiving on input signals representative of the difference. Demodulation means are connected to the output of the converter.Type: GrantFiled: November 20, 2009Date of Patent: February 5, 2013Assignee: Commissariat a l'Energie AtomiqueInventors: Bertrand Gomez, Eric Colinet
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Patent number: 8369861Abstract: A multicarrier communication apparatus that is capable of suppressing interference of feedback information with other channels and alleviating a reduction in an uplink capacity. In PL signal reception section of this apparatus, PL signal extraction section extracts pilot signals and reception quality measuring section measures reception quality such as an SIR. Here, since pilot signals are included in respective subcarriers, reception quality measuring section measures reception quality of subcarriers. FBSC determining section determines a feedback information subcarrier based on the reception quality of subcarriers. More specifically, FBSC determining section determines a subcarrier having the highest reception quality as a feedback information subcarrier. FBSC determining section outputs information about the feedback information subcarrier (FBSC information) to control CH transmission section and FB information reception section.Type: GrantFiled: March 26, 2012Date of Patent: February 5, 2013Assignee: Panasonic CorporationInventor: Akihiko Nishio
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Patent number: 8369783Abstract: A method for controlling a communication apparatus includes communicating with an external device through close proximity wireless communication, receiving a remote control signal transmitted from a remote controller, storing a remote control setting which enables or disables an operation of the remote controller, making a determination as to whether a connection between the communication apparatus and the external device through the close proximity wireless communication is established, and controlling an operation of the remote controller for the communication apparatus on the basis of the determination.Type: GrantFiled: July 31, 2009Date of Patent: February 5, 2013Assignee: Canon Kabushiki KaishaInventors: Shuichiro Matsushima, Toshinori Koba
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Patent number: 8369777Abstract: A communication apparatus including a first communication unit for communicating with other communication apparatus through electric field coupling or magnetic field coupling, an approach detection unit for detecting an approach between the other communication apparatus and the first communication unit, and a selection unit for, when the other communication apparatus and the first communication unit are separated from each other, selecting different data to be transmitted depending on a time for which the other communication apparatus and the first communication unit were in close proximity to each other.Type: GrantFiled: July 9, 2009Date of Patent: February 5, 2013Assignee: Sony CorporationInventors: Eiko Sugisaki, Natsuko Kinoshita, Jun Iwasaki
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Patent number: 8364110Abstract: A RF front end circuit includes a processor, a main receiving (Rx) path and an adjustment path connected between the processor and an external antenna array in parallel, and a coupling module coupled with the main Rx path. The adjustment path includes an adjustment transmitting (Tx) path, an adjustment Rx path, and a DSP. The adjustment Tx path includes a coupling switch. When the circuit operates in an adjustment mode, the switch is connected to the coupling module, the adjustment Rx path receives and demodulates a first analog signal, the DSP converts the first analog signal to a digital signal, clipping a peak of the digital signal, and converts the digital signal to a second analog signal, the adjustment Tx path modulates and reverses the phase of the second analog signal, and the coupling module couples the second analog signal to the main Rx path to counteract noise received thereby.Type: GrantFiled: November 19, 2010Date of Patent: January 29, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Mao-Chang Chuang, Chi-Hsin Wu
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Patent number: 8364080Abstract: A method and system for achieving enhanced quality and higher throughput for collocated IEEE 802.11b/g and Bluetooth (BT) devices in coexistent operation are provided. A priority signal may be generated by a BT radio in a coexistence station to disable WLAN transmissions in a WLAN radio when a BT HV3 frame is available for transmission. When the priority signal is asserted, an exponentially growing retransmission backoff mechanism in the WLAN radio may be disabled. Moreover, when the BT radio and the WLAN radio are enabled for coexistence operation, a WLAN fragmentation threshold in the WLAN radio may be modified based on a WLAN modulation rate and the BT HV3 frame duration.Type: GrantFiled: June 2, 2005Date of Patent: January 29, 2013Assignee: Broadcom CorporationInventors: Prasanna Desai, Brima Ibrahim
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Patent number: 8351850Abstract: An apparatus for emitting and receiving radio-frequency signals includes a circuit to cancel interference. The apparatus transmits and receives signals using an antenna, and isolates the transmission and receiving circuitry. The circuit taps a first part of a signal to be transmitted, and controls the amplitude and phase of this signal. The circuit then introduces the first part of the signal into the receiver after the first part of the signal has been amplified and phase-shifted, so as to cancel in the receiver interference due to portions of the signal that have undesirably entered the receiver.Type: GrantFiled: March 31, 2010Date of Patent: January 8, 2013Assignee: Thales Nederland B.V.Inventors: Rogier Herman Van Aken, Jan Martinus Schouten, Hubert Langeraar
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Patent number: 8351858Abstract: An apparatus and method for obtaining information on Bluetooth devices in a computing device using Bluetooth are provided. The method includes, if an Inquiry Response (IR) packet is received as a response to an inquiry packet, obtaining information on a first Bluetooth device transmitting the IR packet and determining whether a supplementary response indication field is enabled and, if the supplementary response indication field is enabled, receiving an Extended Inquiry Response (EIR) packet, and obtaining information on at least one Bluetooth device other than the first Bluetooth device through the EIR packet.Type: GrantFiled: July 21, 2009Date of Patent: January 8, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Ho Lee, Sang-In Lee, Eun-Chul Kim, Kyoung-Han Lee
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Patent number: 8351859Abstract: According to one embodiment, a communication apparatus comprises a close proximity wireless transfer device, a closeness detection module and a device control module. The close proximity wireless transfer device executes a close proximity wireless transfer. The closeness detection module detects that the close proximity wireless transfer device and an external device are in a close proximity state. Power which the closeness detection module consumes is lower than power which the close proximity wireless transfer device consumes in an idle state. The device control module is configured to activate the close proximity wireless transfer device when the closeness detection module detects the close proximity state.Type: GrantFiled: December 28, 2011Date of Patent: January 8, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Hideyuki Nakagawa
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Patent number: 8346311Abstract: An audio signal processing apparatus includes a band signal component extraction unit for extracting signal components in a predetermined frequency band from an audio signal input by an audio collection unit for collecting at least an outgoing call audio upon an audio phone call, a stationary signal component extraction unit for extracting a stationary signal component from the signal components, a signal adjustment unit having a level adjustment function of adjusting an output signal level with respect to an input signal level and an input and output characteristics change function of changing input and output characteristics upon level adjustment in the level adjustment function through a control signal and configured to set an incoming call audio signal upon the audio phone call as the input signal, and a control signal generation unit for generating the control signal for changing the input and output characteristics by using the stationary signal component.Type: GrantFiled: August 5, 2009Date of Patent: January 1, 2013Assignee: Sony Mobile Communications Japan, Inc.Inventor: Makoto Tachibana
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Patent number: 8340734Abstract: A sliding mechanism for a portable electronic device includes a fixing member, at least one first elastic member arranged at a side of the fixing member, a sliding member, and at least one second elastic member arranged at a side of the sliding member. The first elastic member includes an arcuate first resisting section, the second elastic member includes an arcuate second resisting section, the second resisting section is shorter than the first resisting section. The sliding member is assembled with the fixing member and the second resisting section elastically resists with the first resisting section. The sliding member can automatically slide due to resilient forces between the first resisting section and the second resisting section.Type: GrantFiled: March 30, 2010Date of Patent: December 25, 2012Assignee: Chi Mei Communication Systems, Inc.Inventor: Tse-Shan Peng
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Patent number: 8335468Abstract: A technique for interference cancellation in a satellite communication system involves an autocorrelation on the hub signal to detect a periodicity in the hub signal, determining a search range for a delay in the hub echo signal in accordance with the periodicity, locating the delay in the hub echo signal, and performing the interference cancellation in accordance with the delay. In the case of periodicity, a delay is acquired (either true or false) that provides cancellation (provided that the period does not change). When the period changes, cancellation is discovered to be poor, and another delay (that may be true or false) is acquired that provides good cancellation and so on.Type: GrantFiled: November 15, 2010Date of Patent: December 18, 2012Assignee: EMC SATCOM Technologies, LLCInventors: Sriram Jayasimha, Jyothendar Paladugula
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Patent number: 8331877Abstract: A wireless serving tray including a support base having an ergonomic handle attached to the support base along a central longitudinal axis of the support base lower surface, a plurality of drink buttons disposed on the handle that wirelessly operationally engage a central processing unit which wirelessly communicate with a kitchen unit to order drinks, a trigger that selectively opens an aperture within the support base into which tip coins may be inserted and which pass into a reservoir beneath the support base, and a gap between the handle and lower surface of the support base through which a user passes his forearm to grasp the handle, thereby balancing the support base of the tray, as well as a U-shaped stabilizer member against which the user braces his inner elbow to further balance the tray.Type: GrantFiled: March 31, 2010Date of Patent: December 11, 2012Inventor: Christopher P. Wilkinson
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Patent number: 8331889Abstract: An automatic fuse architecture is described. An incoming signal is received and detected to determine whether the signal exceeds a threshold value.Type: GrantFiled: June 4, 2007Date of Patent: December 11, 2012Assignee: Intel Mobile Communications GmbHInventors: Mikael Bergholz Knudsen, Feridoon Jalili, Michael Wilhelm, Bernd Adler
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Patent number: 8331858Abstract: A communication apparatus of the present invention includes a transmission/reception coupler for performing a close-range one-to-one communication with a device of a communication counterpart by electric field coupling or magnetic field coupling; an intermittent operation unit for performing intermittent operation with a predetermined pause period provided when performing the communication with the device of the communication counterpart; and an intermittent operation cancel request unit for outputting a cancel request of canceling the intermittent operation of the device of the communication counterpart when transmitting a data frame to the device of the communication counterpart and a response with respect to the data frame is not received from the communication counterpart.Type: GrantFiled: July 20, 2009Date of Patent: December 11, 2012Assignee: Sony CorporationInventor: Fumihiro Nishiyama
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Patent number: 8320843Abstract: A radio-frequency switch circuit of the invention includes: n-stage through FETs (field effect transistors) connected in series between the antenna terminal and each of the radio-frequency terminals, where n is a natural number; a radio-frequency leakage prevention resistor connected to a gate of the through FETs; a control signal line commonly connected to the gates of the n-stage through FETs connected to the same radio-frequency terminal; and a resistor connected to each of at least two of the control signal lines and connected to the radio-frequency leakage prevention resistor in series The two control signal lines are capacitively coupled between the resistor and the through FETs.Type: GrantFiled: March 28, 2012Date of Patent: November 27, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Toshiki Seshita, Hirotsugu Wakimoto
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Patent number: 8320844Abstract: A configurable radio frequency (RF) transceiver integrated circuit (IC) includes an RF input/output (IO) module, a plurality of switching modules, and a plurality of components. The RF IO module and selected components of the plurality of components are inter-connected via the at least some of the plurality of switching modules based on a configuration instruction to produce at least one of: at least a portion of a receiver and at least a portion of transmitter.Type: GrantFiled: July 17, 2009Date of Patent: November 27, 2012Assignee: Broadcom CorporationInventors: Brima B. Ibrahim, Arya Reza Behzad, Vinko Erceg, John Walley, Jeyhan Karaoguz, David Rosmann
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Patent number: 8315677Abstract: A folding mobile phone is provided that improves the antenna characteristics of both of a main antenna and a sub-antenna. The folding mobile phone comprises at least an upper housing 1, a lower housing 2, a hinge unit 3, a main antenna 4 located in the vicinity of the hinge unit 3 of the lower housing 2, a sub-antenna 5 located at the lower end of the lower housing 2, and a control unit for selecting an antenna to be used, the folding mobile phone comprising: an upper-and-lower-connections switching circuit 10 for connecting to a lower circuit board 7; and an upper-and-lower-boards connecting means 9 for connecting an upper circuit board 6 with the upper-and-lower-connections switching circuit 10, wherein, at the upper-and-lower-connections switching circuit 10, an electrical connection state between the upper circuit board 6 and the lower circuit board 7 is switched by turning the PIN diode on and off based on the antenna selection signal from the control unit.Type: GrantFiled: April 10, 2006Date of Patent: November 20, 2012Assignee: NEC CorporationInventors: Takuya Kojima, Shinya Nakamura