Patents Examined by Fanghwa Wang
  • Patent number: 8344800
    Abstract: There is provided a repeating system for cancellation of a feedback interference signal, including: a PA (Power Amplifier) for power-amplifying an output signal; a feedback ICS (Interference Cancellation System) for canceling a feedback interference signal and detecting a residual error; a pre-distorter for compensating for an error of the PA by applying pre-distortion and compensating for the residual error by using information on the residual error detected by the feedback ICS to linearize the characteristic of the PA; and a control unit for controlling the feedback ICS and the pre-distorter.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 1, 2013
    Assignee: Airpoint
    Inventors: Sung-Jun Baik, Joong-Han Choi
  • Patent number: 8311598
    Abstract: A mobile terminal apparatus includes a first cabinet; a second cabinet; a slide holding mechanism for holding a first cabinet and a second cabinet slidable during a shift from an closed state to an open state; a keyboard held within the second cabinet, the keyboard being disposed movable in slide directions of the first cabinet and the second cabinet; a hook disposed at a retraction side end; a keyboard lock member including a projection and a notch engaged with the hook; and a sliding groove that is disposed in the first cabinet in the slide direction of the first cabinet to slide the projection. The keyboard is held within the second cabinet when the first cabinet and the second cabinet are placed in the closed state or the keyboard ejects from the second cabinet when the first cabinet and the second cabinet are placed in the open state.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: November 13, 2012
    Assignee: Sony Mobile Communications Japan, Inc.
    Inventors: Isao Endo, Kazuhiro Kato
  • Patent number: 8190083
    Abstract: Methods and apparatus relating to communicating in a system including relay stations are described. Various described methods and apparatus are directed to improved performance and/or mitigating interference in relay station boundary areas. Relay station transmission power is controlled based on at least one of time or frequency such that a transmission power level for a frequency is varied in a predetermined manner with time or such that different transmission power levels are used for different carrier frequencies. Different adjacent relay stations are intentionally configured to use different transmission power levels for the same carrier and/or have different time varying transmission power level profiles for the same carrier. A relay station performs access terminal scheduling based on access terminal location with respect to relay station boundary regions and transmission power level information.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: May 29, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Xinzhou Wu, Junyi Li
  • Patent number: 8126496
    Abstract: System(s) and method(s) are provided for signaling-triggered power adjustment in a femto cell. Attachment signal activity is measured and a set of derived signaling activity metrics are assessed and compared with a set of thresholds. An activity metric that overcomes an associated threshold results in a power adjustment of the transmission power of a femto access point (AP). By monitoring LAU (location area update), RAU (routing area update), and call activity, signaling activity metrics (e.g., signaling failure rate, access control rejection rate, or dwell time) are determined and a femto AP can optimize transmission power to ensure coverage maintenance and confinement, as well as mitigate unnecessary signaling. Alarm(s) can be conveyed to a femto network platform when power increases after an adjustment cycle; alarm(s) can prompt a network-based response to actively address femto cell operation. Signaling-triggered power management affects operation of AP serving the femto cell and served mobile terminals.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: February 28, 2012
    Assignee: AT&T Mobility II LLC
    Inventors: Arthur Richard Brisebois, Kurt Donald Huber
  • Patent number: 8107875
    Abstract: A method and system are presented for operating a multibeam satellite system involving positioning a plurality of service beams associated with a plurality of service beam coverage areas and positioning a feeder beam associated with a feeder beam coverage area. The feeder beam coverage area is at a proximity to at least one service beam coverage area. The feeder beam coverage area includes at least one gateway. Each of the plurality of service beam coverage areas uses a color. The at least near service beam coverage area uses at least one color from the plurality of colors. The feeder beam uses at least one color, excluding the at least one color used by the at least one near service beam coverage area.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: January 31, 2012
    Assignee: ViaSat, Inc.
    Inventor: Mark J. Miller
  • Patent number: 8046016
    Abstract: A method for indicating availability of outbound RF resources (ORFRs) of peer base stations is provided that uses peer busy indicator (PBI) messages transmitted from one peer base station to other peer base stations.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: October 25, 2011
    Assignee: Motorola Solutions, Inc.
    Inventors: Robert D. LoGalbo, Bradley M. Hiben
  • Patent number: 8041381
    Abstract: A radio network controller includes a block error detection unit configured to receive a data block from the base station and to detect a block error, and a target SIR calculation unit configured to calculate a target SIR based on the detected block error rate. The target calculation unit sets a first time section, which indicates a time section from a detection of the block error to the notification of the target SIR is to the base station when the block error is detected, shorter than a second time section, which indicates a time section from the detection of the block error to the notification of the target SIR to the base station when the block error is not detected.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: October 18, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masafumi Usuda, Anil Umesh, Hidehiro Ando, Takuya Sato, Shinichi Sasaki, Kouji Makino
  • Patent number: 7974662
    Abstract: A detachable connection mechanism is to establish an electrical connection between a mobile phone and a notebook computer. The detachable connection mechanism is designed at a housing board. The housing board has an opening. A load board is pivotally connected with the housing board, and in contact with or away from the housing board in parallel. When the load board is in contact with the housing board, the load board is fitted within the opening. Two rotatable members are pivotally connected with housing board. Several resilient arms are respectively pivotally connected with the housing board at one end and with the load board at the other end. The mobile phone is selectively connected or disconnected with the notebook computer by interacting the rotatable members, movable members, resilient arms and the load board.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: July 5, 2011
    Assignee: Quanta Computer Inc.
    Inventors: Tui-Yang Tsai, Chun-Wang Lin, Yi-Han Shiu, Chia-Wei Lin
  • Patent number: 7974589
    Abstract: Data transmitter embodiments are provided which are particularly useful as interface devices for accurate and reliable transmittal of data from high-speed data system devices such as analog-to-digital converters. Transmitter embodiments have been found to provide excellent fidelity of data transfer at high data rates (e.g., 4 gigabits/second) while consuming only a portion of the power of many conventional transmitters and requiring only a portion of the layout area of these transmitters. Transmitter embodiments provide effective control of transmitter parameters such as matched impedances, data symmetry, common-mode level, data eye and current drain.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: July 5, 2011
    Assignee: Analog Devices, Inc.
    Inventors: Brad Porcher Jeffries, Michael R. Elliott