Patents Assigned to CSR Technology Inc.
  • Patent number: 8983416
    Abstract: A system and method employ an arbiter-based automatic gain control (AGC) for managing a series of power adjustment circuits, such as amplifiers and/or attenuators. A central arbiter is employed for managing each stage of a series of power adjustment circuits, rather than each stage solely managing itself via a localized control loop. In one embodiment, a system comprises a series of gain stages each having at least one power adjustment circuit, such as at least one attenuator or amplifier. A power detector may be implemented to detect the power level of the output signal of each gain stage, and communicate information about the detected power levels for each stage to a central arbiter. Based at least in part on the received information, the arbiter controls each of the gain stages in a coordinated fashion.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 17, 2015
    Assignee: CSR Technology Inc.
    Inventor: Ronald G. Spencer
  • Publication number: 20150063589
    Abstract: A method, apparatus, and manufacture of beamforming is provided. Adaptive null beamforming is performed for signals from first and second microphones of a two-microphone array. The signals from the microphones are decomposed into subbands. Beamforming weights are evaluated and adaptively updated over time based, at least in part, on the direction of arrival and distance of the target signal. The beamforming weights are applied to the subbands at each updated time interval. Each subband is then combined.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 5, 2015
    Applicant: CSR TECHNOLOGY INC.
    Inventors: Tao Yu, Rogerio Guedes Alves
  • Patent number: 8954764
    Abstract: An integrated circuit (IC) includes a first power supply node that is arranged to receive a first power supply signal. The IC also includes process detection circuits. Each process detection circuit provides a process detection output signal such that a value associated with the process detection output signal is a function of process variation at a location of the process detection circuit outputting the process detection signal. The IC also includes a processing unit that executes processor-executable instructions to provide at least one voltage control signal, based, at least in part, on the process detection signals. The voltage control signal(s) include a first voltage control signal is associated with a target voltage for the first power supply signal.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: February 10, 2015
    Assignee: CSR Technology Inc.
    Inventors: Victor Pinto, Eyal Raz
  • Patent number: 8954269
    Abstract: Methods and systems consistent with the present invention provide a host based positioning system. The host based positioning system includes a tracker hardware interface that connects to a dedicated hardware space vehicle tracker. The tracker hardware interface receives positioning information from the space vehicle tracker. The host based positioning system also includes a memory that includes a GPS library having a user interface, a tracker interface, and an operating system interface. A processor runs functions provided by the interfaces.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: February 10, 2015
    Assignee: CSR Technology Inc.
    Inventors: Clifford Yamamoto, Sebastian Nonis, Ashutosh Pande, Nikola Bulatovic, Stefan Witanis
  • Patent number: 8947300
    Abstract: Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a system for mode switching between a navigational signal; and power control module for receiver.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: February 3, 2015
    Assignee: CSR Technology Inc.
    Inventors: Mangesh Chansarkar, Sundar Raman, Charles P. Norman, Paul A. Underbrink, Henry D. Falk, James Brown, Robert Harvey, Peter Michali, Williams Higgins, Gensheng Zhang, Qingwen Zhang
  • Patent number: 8923779
    Abstract: Systems and methods for tuning an antenna for a frequency modulation (FM) transceiver are provided. A representative system includes: a network of electrical adjustable passive components that receives and sends radio frequency (RF) signals to a receiver circuitry via the network of electrical adjustable passive components. The receiver circuitry determines the received signal strength indication (RSSI) of the RF signal. The system further includes a transmitter circuitry that transmits RF signals via the network of electrical adjustable passive components, and a peak detector circuitry that receives and determines a voltage output of the RF signals from the variable capacitors. An auto-tune circuitry receives the RSSI and output value from the receiver circuitry and the peak detector circuitry, respectively.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: December 30, 2014
    Assignee: CSR Technology Inc.
    Inventors: Noshir Dubash, Thomas E. Ricks, Jr., Richard J. McConnell
  • Patent number: 8912956
    Abstract: A mobile communication device includes a global navigation satellite system (GNSS) receiver for receiving GNSS signals, a radio frequency (RF) receiver for receiving RF signals and a voltage controlled oscillator supplying an oscillator signal to the GNSS receiver and the RF receiver. The GNSS receiver and the RF receiver use the oscillator signal to receive the GNSS signals and the RF signals. The mobile communication device also includes a processor for initializing and/or adjusting a model of a frequency behavior of the voltage controlled oscillator, and uses the model to track the GNSS signals when computing a location of the mobile communication device.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: December 16, 2014
    Assignee: CSR Technology Inc.
    Inventor: Daniel Babitch
  • Patent number: 8902241
    Abstract: According to one embodiment, a graphics/video processor includes a memory controller. The memory controller includes a first arbiter that receives memory client requests to access a memory device, and a first memory buffer coupled to the first arbiter. The first arbiter stores client requests that are selected by the first arbiter. The memory controller also includes a second arbiter coupled to the first memory buffer and a second memory buffer coupled to the second arbiter. The second arbiter receives requests from the memory client requests stored in the first memory buffer. The second memory buffer stores the client requests selected by the second arbiter. Further, the memory controller includes a third arbiter coupled to the second memory buffer. The third arbiter provides access of the memory device to the client requests stored in the second memory buffer.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 2, 2014
    Assignee: CSR Technology Inc.
    Inventors: David R. Auld, Bruce K. Holmer, Hong-Jyeh Jason Huang, Gerard K. Yeh
  • 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: 8898725
    Abstract: A method for processing an input signal is disclosed. The method includes receiving an input signal. The method also includes applying a first transfer function to the input signal to produce a first signal, wherein the first transfer function exhibits a high pass characteristic. The method further includes applying a second transfer function to the input signal to produce a second signal, the second transfer function exhibiting a low pass characteristic.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: November 25, 2014
    Assignee: CSR Technology, Inc.
    Inventors: Kurt J. Richter, Angelika Schneider
  • Patent number: 8891714
    Abstract: A system for synchronizing a receiver of a bit stream to the bit stream include a correlator to remove the PN code modulation and to generate a stream of time sequence values (samples) from the received bits. Multiple accumulators are included, each accumulator corresponding to a different offset from a first time period. The accumulators add a number of values equal to a number of samples in a bit period. Multiple magnitude calculators receive sums from the corresponding accumulators and calculates respective magnitudes. Multiple non-coherent summers are then used to add the magnitudes for each offset in each bit period for all of the received bits. The outputs of the non-coherent summers are analyzed to find the highest value, to identify the location of the bit transition in the bit period.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: November 18, 2014
    Assignee: CSR Technology Inc.
    Inventors: Sundar Raman, James M. Brown
  • Patent number: 8885738
    Abstract: A device and method for receiving and processing single carrier and multiple carrier signals through substantially common elements within a receiver that uses a radix 2 FFT on the signal, equalizes both types of signals in the frequency domain and then, for the multiple carrier signal performs a polynomial interpolation to bring the signal to symbol rate and for the single carrier signal performs an IFFT and samples the output to produce a signal at symbol rate.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: November 11, 2014
    Assignee: CSR Technology Inc.
    Inventors: Yossef Cohen, Noam Galperin, Eshel Hason
  • Patent number: 8885967
    Abstract: A method and apparatus are provided for adaptive sharpness enhancement of image data. In on embodiment, a method for sharpness enhancement includes receiving image data for a first frame, performing linear sharpening enhancement of the image data, performing non-linear sharpening enhancement of the image data, and generating blending parameters based on the image data. The blending parameters may be generated based upon image data of the first frame, linear sharpened image data for the first frame, and non-linear sharpened image data for the first frame. The method may further include blending the image data of the first frame, the linear sharpened image data, and the non-linear sharpened image data based upon the blending parameters.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: November 11, 2014
    Assignee: CSR Technology Inc.
    Inventor: Oscar Ayzenberg
  • Patent number: 8872968
    Abstract: A method of determining a motion value for a missing pixel in an interlaced video field using an adaptive window. The method includes computing a first mean absolute difference (MAD) value for a pixel based on a 1×5 window, computing a second MAD value for the pixel using a 3×5 window, and selectively blending the first and second MAD values to form a resultant motion value.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: October 28, 2014
    Assignee: CSR Technology Inc.
    Inventor: Monica Man Kay Tang
  • Patent number: 8855917
    Abstract: Systems and methods are disclosed herein to use a vehicle back-up camera as a cost-effective dead-reckoning sensor in satellite-based vehicle navigation systems. Since the back-up camera may already use a display of the navigation system for display, the data from the back-up camera may be easily obtained and integrated into the navigation system. The data from the camera is received by a navigation receiver wirelessly or through a wired connection. The image is processed to determine the speed, heading, turn-rate of the vehicle to aid the satellite-based navigation system if the satellite signals are inadequate. Thus, enhanced vehicle navigation- performance can be obtained without adding new sensors and/or connecting to a vehicle data bus.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: October 7, 2014
    Assignee: CSR Technology Inc.
    Inventors: Michael Koenig, Keith Brodie
  • Publication number: 20140267602
    Abstract: Embodiments are directed towards enabling digital cameras to create a 3D view, which can be re-rendered onto any object within a scene, so that it is both in focus and a center of perspective, based on capturing a single set of multiple 2D images of the scene. From capturing a single set of 2D images for a scene, a depth map of the scene may be generated, and used to calculate principal depths, which are then used to capture an image focused at each of the principal depths. A correspondence between a 2D image of the scene and the principal depths are determined that corresponds to a specific principal depth. For different coordinates of the 2D image, different 3D views of the scene are created that are each focused at a principal dept that corresponds to the given coordinate.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: CSR Technology, Inc.
    Inventors: Meir Tzur, Noam Levy
  • Publication number: 20140270241
    Abstract: A method, apparatus, and manufacture for speech enhancement in an automotive environment is provided. Signals from first and second microphones of a two-microphone array are decomposed into subbands. At least one signal processing method is performed on the each subband of the decomposed signals to provide a first signal processing output signal and a second signal processing output signal. Subsequently, an acoustic events detection determination is made as to whether the driver, the front passenger, or neither is speaking. An acoustic events detection output signal is provided by selecting the first or second signal processing output signal and by either attenuating the selected signal or not, based on a currently selected operating mode and based on the result of the acoustic events detection determination. Each subband of the acoustics events detection output signal is then combined.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: CSR TECHNOLOGY, INC
    Inventor: CSR TECHNOLOGY, INC
  • Patent number: 8810450
    Abstract: Satellite positioning system (SATPS) receiver that has a plurality of modes and channels, where a timeline module configures the channels based on the mode of operation of the SATPS receiver and reconfigures the channels if the mode of operation of the SATPS changes.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: August 19, 2014
    Assignee: CSR Technology Inc.
    Inventors: Gengsheng Zhang, Quingwen Zhang, Paul Underbrink
  • Patent number: 8797009
    Abstract: A voltage converter includes a power switch having respective charging and discharging control terminals, and an output terminal coupled to a series connected inductor and capacitor. The voltage converter also includes a charging switch coupled to the charging control terminal of the power switch, a discharging switch coupled to the discharging control terminal of the power switch, and a feedback circuit coupling the power switch, charging switch and discharging switch to a node at which the capacitor and inductor are connected. During a charging phase, the charging switch couples the capacitor to the charging control terminal of the power switch, and during a discharging phase, the discharging switch couples the capacitor to the discharging control terminal of the power switch.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: August 5, 2014
    Assignee: CSR Technology Inc.
    Inventor: Ludovic Oddoart
  • Patent number: 8788200
    Abstract: The invention described herein relates to aiding a Satellite Positioning System (SPS) receiver of a platform with a data interface to the platform data. The platform, for example, could be a vehicle, ship, aircraft, or a pedestrian. The SPS receiver would be used to track the location of the platform. The data interface would facilitate access by the SPS receiver to the data of the platform, and the SPS receiver in turn could provide SPS data (such as position, speed, and heading) to the platform. A further aspect of the invention includes hardware or software used by the data interface and the SPS receiver to provide, format, time-stamp, synchronize, and match platform data or SPS receiver data.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: July 22, 2014
    Assignee: CSR Technology Inc.
    Inventors: Jaime B. Colley, Lars Boeryd