Patents Examined by Angelica Perez
  • Patent number: 9473293
    Abstract: A phase lock loop monitor circuit is disclosed. The phase lock loop monitor circuit may include a coarse tuning circuit operable to generate a coarse tune failure indicator, a frequency target lock detector circuit operable to generate a frequency target failure indicator, a cycle slip monitor circuit operable to generate a cycle slip lock failure indicator, and an abort logic circuit communicatively coupled to the coarse tuning circuit, the frequency target lock detector circuit, and the cycle slip monitor circuit, the abort logic circuit operable to generate a radio operation abort indicator based at least on the coarse tune failure indicator, the frequency target failure indicator, or the cycle slip lock failure indicator.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 18, 2016
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Chris N. Stoll, Prachee S. Behera, David F. Brown, Shobak R. Kythakyapuzha, Khurram Waheed
  • Patent number: 8665991
    Abstract: A communications device may include an In-phase (I) circuit having an In-phase modulator and mixer circuit, and an I power amplifier circuit coupled thereto, the I circuit configured to modulate and amplify a digital baseband I signal to generate an amplified I signal, and a Quadrature (Q) circuit having a Q modulator and mixer circuit, and a Q power amplifier circuit coupled thereto, the Q circuit configured to modulate and amplify a digital baseband Q signal to generate an amplified Q signal separate from the amplified I signal. A processor selectively switches the digital baseband I signal and the digital baseband Q signal between the I and Q signal inputs to provide selective phase shifting for the digital baseband I and Q signals.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: March 4, 2014
    Assignee: BlackBerry Limited
    Inventors: Lizhong Zhu, George Soliman Mankaruse, Michael Stephen Corrigan, Perry Jarmuszewski, Oleksiy Kravets, Kent Arnold Nickerson, Nagula Tharma Sangary
  • Patent number: 8543152
    Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter-sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station, channel gains for the serving and neighbor base stations, and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station observing high interference and/or if the current transmit power level is higher, and vice versa. The intra-sector interference is maintained within an acceptable level by limiting a received SNR for the terminal to be within a range of allowable SNRs.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: September 24, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Arak Sutivong, David Jonathan Julian, Avneesh Agrawal
  • Patent number: 8503926
    Abstract: An interference cancellation repeater employing zero-IF or direct conversion radio architecture implements IQ imbalance compensation using a metric and an adaptive algorithm. The metric is based on the image rejection ratio of the repeater and is indicative of the level of spectral image caused by the repeater's receiver or transmitter IQ imbalance.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: August 6, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Kenneth M. Gainey, James Arthur Proctor, Jr.
  • Patent number: 8478202
    Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter-sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station, channel gains for the serving and neighbor base stations, and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station observing high interference and/or if the current transmit power level is higher, and vice versa. The intra-sector interference is maintained within an acceptable level by limiting a received SNR for the terminal to be within a range of allowable SNRs.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: July 2, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Arak Sutivong, David Jonathan Julian, Avneesh Agrawal
  • Patent number: 8463308
    Abstract: Methods for coordinating power usage and link adaptation in wireless communications are described. Terminals and/or access points (APs) may attempt to modify terminals' transmit power in relation to a desired communication data transfer rate. Link adoption may also be used in conjunction with the described methods.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: June 11, 2013
    Assignees: Toshiba America Research, Inc., Telcordia Technologies, Inc.
    Inventors: Ryoko Matsuo, Shuichi Obayashi, Toshikazu Kodama, David Famolari
  • Patent number: 8451941
    Abstract: A communications device may include an In-phase (I) circuit having an In-phase modulator and mixer circuit, and an I power amplifier circuit coupled thereto, the I circuit configured to modulate and amplify a digital baseband I signal to generate an amplified I signal, and a Quadrature (Q) circuit having a Q modulator and mixer circuit, and a Q power amplifier circuit coupled thereto, the Q circuit configured to modulate and amplify a digital baseband Q signal to generate an amplified Q signal separate from the amplified I signal. The communications device may include a processor configured, for example, to selectively switch the digital baseband signal and the digital baseband Q signal between the I and Q signal inputs to provide selective phase shifting for the digital baseband I and Q signals. For example, the controller may selectively phase shift the digital baseband I and Q signals, and control the I and Q power amplifier circuits to vary an amplitude of the amplified I and Q signals.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: May 28, 2013
    Assignee: Research In Motion Limited
    Inventors: Lizhong Zhu, George Soliman Mankaruse, Michael Stephen Corrigan, Perry Jarmuszewski, Oleksiy Kravets, Kent A. Nickerson, Nagula Tharma Sangary
  • Patent number: 8437787
    Abstract: A mobile communication device includes antennas, transmitting units, and receiving units. A baseband processing unit of the mobile communication device transmits data signals to a base station device through a receiving unit and an antenna that are selected based on an instruction received from the base station device. The baseband processing unit transmits reference signals to the base station device through the transmitting units and the antennas while preventing transmission frequencies of the reference signals from overlapping one another.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: May 7, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tadashi Shimonabe, Akira Ohshima, Mitsuru Sakamoto, Yuhsuke Takagi
  • Patent number: 8433243
    Abstract: An audio device includes a Bluetooth receiver, a Bluetooth transmitter, a speaker and a housing. The Bluetooth receiver is capable of wirelessly receiving signals in at least two audio channels. The Bluetooth transmitter is capable of wirelessly retransmitting at least a first one of the two audio channels. The speaker plays the second one of the two audio channels. The housing contains the Bluetooth receiver, the Bluetooth transmitter, and the ear phone. The housing is shaped to fit in or on an ear of a user.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: April 30, 2013
    Assignee: Agere Systems LLC
    Inventor: Sanandan Sharma
  • Patent number: 8417252
    Abstract: Systems and methodologies are described herein that facilitate interference measurement and reporting in a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, a network device can measure and report interference corresponding to network nodes outside a designated set of nodes that can cooperatively serve the device. Respective interference reports can additionally identify dominant interfering nodes, correlation between transmit antennas of respective nodes, or the like. Subsequently, respective interference reports can be combined with per-node channel information to manage coordination and scheduling across respective network nodes. As further described herein, interference from a network node can be measured by observing reference and/or synchronization signals from the network node. To aid such observation, respective non-interfering network nodes can define null pilot intervals in which transmission is silenced or otherwise reduced.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: April 9, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Ravi Palanki, Alexei Y. Gorokhov, Naga Bhushan
  • Patent number: 8412290
    Abstract: A miniaturized, low power RF transmitter with a dual mode active on-chip antenna/inductor is disclosed in which antenna also serves as the oscillator inductor. Also disclosed is a miniaturized low power RF receiver with an on-chip antenna; and a RF transmitter system wherein an on-chip antenna is wirelessly coupled to an off chip patch antenna are disclosed. Advantageously, the TX chip is housed in a low loss, e.g. Low Temperature Co-fired Ceramic (LTCC) package with a patch antenna to provide a System-on-Package implementation comprising electromagnetic coupling between a RF TX chip comprising an integrated on-chip antenna and a package antenna.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: April 2, 2013
    Inventors: Atif Shamim, Muhammad Arsalan, Langis Roy
  • Patent number: 8385845
    Abstract: Embodiments include but are not limited to apparatuses and systems including a first active device located on a signal path between an antenna terminal and a transmit and/or receive (T/R) terminal, and a self-biasing shunt device coupled to the first active device and including a second active device having a DC-blocked source terminal and a non-DC-blocked drain terminal. Other embodiments may be described and claimed.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: February 26, 2013
    Assignee: Triquint Semiconductor, Inc.
    Inventor: Philippe Cortese
  • Patent number: 8380138
    Abstract: Closed-loop techniques for adjusting the duty cycle of a cyclical signal, e.g., a clock signal, to approach a target value. In an exemplary embodiment, a charge pump is coupled to a charge and sample module, which drives a de-skew circuit in a negative feedback loop. The charge and sample module couples the charge pump to the integration capacitor during two of four successive phases, and also couples the integration capacitor to sampling capacitors during the other two of the four successive phases. The voltages across the sampling capacitors may be used to control the de-skew circuit, which adjusts the duty cycle of a cyclical signal to be adjusted.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: February 19, 2013
    Assignee: Qualcomm Incorporated
    Inventors: Sameer Wadhwa, Marzio Pedrali-Noy
  • Patent number: 8380179
    Abstract: The present disclosure relates generally to systems and methods for learning based device management. In one example, the method includes identifying functions available on a mobile device and determining a usage pattern for each of the functions. A determination is made as to whether each of the functions is to be monitored based on the function's usage pattern, and a device management profile is generated that defines monitoring parameters for each of the functions to be monitored.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Anuradha K Appaji
  • Patent number: 8369866
    Abstract: A system and method for precisely locating a mobile device at a precise geographical distance and messaging to communication devices carried by persons in specific areas is disclosed. The method utilizes at least two elements, a mobile device and at least one location tag. When activated, the mobile device will interact with all of the location tags in range and determine the location tag most practically near. The mobile device will then download detailed local information from the location tag most practically near. The messaging system may be used to selectively send messages to communication devices known to be within range of location transmitters or tags in a predetermined area.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: February 5, 2013
    Assignee: Wirelesswerx International, Inc.
    Inventors: James Ashley, Jr., Patrick Mooney
  • Patent number: 8359050
    Abstract: A mobile phone which allows a user to continuously watch a television broadcast even if there is a call from the other party phone is provided. If a call comes from the other party phone in a state of displaying television image on a main display, the television audio output part 36 stops outputting television audio corresponding to the television image while the television image display part maintains display of the television image on the main display, wherein the character information display part 38 causes the main display to display caption corresponding to the television image. Therefore, the user is allowed to continuously watch the television broadcast on the basis of the television image and caption while communicating with the other party phone.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: January 22, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kei Okuda, Yasuhiro Kawauti, Toshio Suganuma, Yuko Banba
  • Patent number: 8359051
    Abstract: A master-slave distributed communications network comprises a master node (10), a plurality of slave nodes (12 to 22), and links (VL) operatively interconnecting the slave nodes and the master node in accordance with a routing plan. Each slave node has means for storing an address of the next node in the routing plan for a message to be routed on an uplink to the master node and when sending a data packet to the master node it appends the prestored address and forwards the data packet to the next node. If the next node is not the master node, it, in turn, adds the prestored address of the next following slave node to the data packet thus lengthening the data packet and re-transmits it, and so on until the data packet reaches the master node. For a downlink message, the master node (10) using a prestored routing table includes in the data packet the addresses of all the slave nodes on the selected route.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: January 22, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ian A. Marsden, Paul R. Marshall
  • Patent number: 8326374
    Abstract: Methods and apparatus implementing spatial processing in a remote unit. In general, in one aspect, a remote unit in accordance with the invention includes a spatial processing unit to process signals received by a plurality of antennas.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: December 4, 2012
    Assignee: Intel Corporation
    Inventors: Craig H. Barratt, Athanasios A. Kasapi
  • Patent number: 8320902
    Abstract: A system and method for selecting a preferred connection point from a choice of one or more available connection points in a wireless communication network. The system and method include: determining a link quality for the one or more available connection points; establishing a connection to a first connection point when there is no existing established connection, the first connection point offers a desired service, and the link quality for the first connection point exceeds a first threshold value, wherein a service priority is considered in determining the link quality of the first connection point; maintaining the established connection to the first connection point when the link quality exceeds a second threshold value; and making eligible the established connection to the first connection point for preemption by a second connection point, when the link quality for the first connection point is less than the second threshold value.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: November 27, 2012
    Assignee: Kapsch Trafficcom AG
    Inventors: John Thomas Moring, Dmitri Khijniak, Justin Paul McNew
  • Patent number: 8311564
    Abstract: Various example embodiments are disclosed herein. According to an example embodiment, an apparatus may include a processor which may be configured to: permute subcarriers of a regular band, including subcarriers assigned to mobile station(s) operating in a single carrier mode and subcarriers assigned to mobile station(s) operating in a multiple carrier mode, to generate a first permuted regular band of subcarriers; and permute subcarriers of the first permuted regular band that are assigned to mobile station(s) operating in multiple carrier mode with subcarriers of an adjacent guard band.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: November 13, 2012
    Assignee: Nokia Siemens Networks Oy
    Inventors: Joon Hwa Chun, Shashikant Maheshwari, Shu-Shaw Wang, Zexian Li