Patents Assigned to CSR Technology Inc.
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Publication number: 20130257647Abstract: According to certain aspects, the invention includes using acquisition channel results from a number of satellites to achieve composite weak acquisition. According to certain other aspects, the invention also includes solving for an improved position estimate and, with a sufficiently accurate, either initial or improved position estimate, also solving for GPS system time using a composite of acquired signals from a plurality of satellites. Within commonly experienced initial position and time uncertainties, the geometric range changes are fairly linear, which allows the point of convergence of ranges to solve for GPS position and subsequently for time with reasonable accuracy, which is the equivalent to obtaining frame sync without any data demodulation or preamble matching.Type: ApplicationFiled: March 30, 2012Publication date: October 3, 2013Applicant: CSR Technology Inc.Inventors: Phanikrishna Sagiraju, Steven Gronemeyer
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Patent number: 8548037Abstract: Automatic recalculation of tuner filter coefficients are made in order to compensate for changes in signal properties due to processing functionality in the tuner. The architecture compensates for processing changes, such as a large continuous range of clock frequency shifts, while not sacrificing bandwidth response characteristics of the channel filter. Embodiments may calculate coefficients in order to obtain response characteristics while utilizing a completely on-chip architecture, which does not require accessing off-chip software driver programs, and does not require complex look-up tables containing filter coefficients stored in onboard memory.Type: GrantFiled: September 30, 2010Date of Patent: October 1, 2013Assignee: CSR Technology Inc.Inventor: Stéphane Laurent-Michel
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Patent number: 8549191Abstract: A method and apparatus are provided for serial advanced technology attachment (SATA) hot unplug. In one embodiment, a method includes detecting a connection of a SATA storage device to a SATA host interface by monitoring physical (PHY) layer signals derived from SATA communication terminals, by a controller of the host interface. The detection being based on phase locked loop (PLL) response of the PHY layer signals. The method further includes detecting disconnection of the SATA device based on the PLL response and outputting a notification, by the controller, when the PLL response indicates that the SATA device has been disconnected.Type: GrantFiled: January 4, 2010Date of Patent: October 1, 2013Assignee: CSR Technology Inc.Inventors: Maxim Mogilnitsky, Stephen Williams, Andrew Popplewell
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Publication number: 20130250053Abstract: Embodiments are directed towards enabling digital cameras to digitally process captured two dimensional image sequences at a real time video rate, to convert the two dimensional image sequences into stereoscopic three dimensional image sequences. In one embodiment, using a pipelining architecture, various statistics are obtained for a captured two dimensional sequence. The statistics are used to estimate depth within each frame image within the sequence, in real time. Using the depth data a disparity map is generated that is provided to a warping component to generate a second perspective of the two dimensional image. The two images for the frame provide a three dimensional perspective for the frame within the sequence. Together the two perspective images for the frame are provided to a video encoder component to encode the stereoscopic three dimensional frame for the sequence.Type: ApplicationFiled: March 22, 2012Publication date: September 26, 2013Applicant: CSR Technology Inc.Inventor: Noam Levy
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Patent number: 8542313Abstract: A device and methods are provided for calculating depth estimation for a digital imaging device are disclosed and claimed. In one embodiment, a method includes detecting a first image associated with a first focus parameter, detecting a second image associated with a second focus parameter, calculating a statistical representation of a region of interest in the first and second images, and determining a ratio for the region of interest based on the statistical representation. The method may further include determining one or more focus characteristics using a memory table based on the determined ratio for the region of interest, and calculating a focus depth for capture of image data based on the determined one or more focus characteristics associated with the memory table.Type: GrantFiled: August 16, 2010Date of Patent: September 24, 2013Assignee: CSR Technology Inc.Inventors: Guy Rapaport, Meir Tzur, Artemy Baxansky
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Patent number: 8542775Abstract: A radio system comprises a front-end receiver for receiving a RF signal and converting the RF signal into a digital payload signal. The system further comprises a base-band processor for processing the digital payload signal, and a serial data interface over which the front-end communicates the digital payload signal and meta data to the base-band processor. The meta data may comprise information indicating whether a corresponding digital payload signal communicated over the serial data interface is valid and additional information of the front-end status, e.g. gain or state of tuning.Type: GrantFiled: November 12, 2010Date of Patent: September 24, 2013Assignee: CSR Technology Inc.Inventor: Stefan Volnhals
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Publication number: 20130243241Abstract: A method, apparatus, and manufacture for smiling face detection is provided. For each frame, a list of new smiling faces for the frame is generated by performing smiling face detection employing an object classifier that trained is to distinguish between smiling faces and all objects in the frame that are not smiling faces. For the first frame, the list of new smiling faces is employed as an input smiling face list for the next frame. For each frame after the first frame, a list of tracked smiles for the frame is generated by tracking smiling faces in the frame from the input smiling list for the frame. Further, a list of new smiling faces is generated for the next frame by combining the list of new smiling faces for the frame with the list of tracked smiles for the frame.Type: ApplicationFiled: March 16, 2012Publication date: September 19, 2013Applicant: CSR Technology Inc.Inventor: Ben-Zion Shaick
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Publication number: 20130235250Abstract: Embodiments are directed towards using a color filtration system to generate multiple color images of a same single image that is displayed on a photo sensor plane to determine a lens adjustment position for a defined region of interest usable to automatically focus at least the defined region of interest using the single image. In one embodiment, the color filtration system employs a multiple color aperture filter and two single element lenses to generate multiple color images when an object within the single image is out of focus. In another embodiment, a metal dielectric interference filter is mounted directly in front of the photo sensor, to generate the multiple color images.Type: ApplicationFiled: March 6, 2012Publication date: September 12, 2013Applicant: CSR Technology Inc.Inventor: Evgene FAINSTAIN
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Publication number: 20130234887Abstract: 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: ApplicationFiled: March 9, 2012Publication date: September 12, 2013Applicant: CSR TECHNOLOGY INC.Inventor: Daniel Babitch
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Publication number: 20130232347Abstract: 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 the 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: ApplicationFiled: March 5, 2012Publication date: September 5, 2013Applicant: CSR Technology Inc.Inventors: Victor Pinto, Eyal Raz
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Patent number: 8525900Abstract: Techniques for creating a High Dynamic Range (HDR) image within a consumer grade digital camera from a series of images of a scene captured at different exposure levels, and displaying the HDR image on the camera's built-in display are provided. The approach employs mixing images of the series to incorporate both scene shadow and highlight details, and the removing of “ghost” image artifacts appearing in the mixed HDR image resulting from movement in the scene over the time the series images are captured. The low computational resource utilization of the image mixing and ghost removal processing operations, along with the ability to commence image mixing and ghost removal prior to the acquisition of all series images, can significantly reduce the time required to generate and display a tone mapped HDR image.Type: GrantFiled: April 20, 2011Date of Patent: September 3, 2013Assignee: CSR Technology Inc.Inventor: Haim Garten
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Patent number: 8514982Abstract: Systems and methods for mitigating multipath signals in a receiver are provided. In this regard, a representative system, among others, includes a radio frequency (RF) front-end and at least one analog-to-digital converter (ADC). The RF front-end receives FM signals and down-converts the received frequency signals to intermediate frequency (IF) signals. The analog-to-digital converter (ADC) receives the intermediate frequency signals and digitizes multiple FM channels around a desired FM channel associated with the down-converted signals. The system further includes multiple sets of digital processing components that are configured to simultaneously receive and process the digitized multiple channels. The multiple sets of digital processing components include at least two parallel channel selection and demodulation paths in which the respective digitized multiple channels are processed therethrough.Type: GrantFiled: December 12, 2008Date of Patent: August 20, 2013Assignee: CSR Technology, IncInventors: Noshir Dubash, Siva Bonasu, Peter Naji, Douglas W. Schucker
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Patent number: 8515381Abstract: Systems and methods for improving the timing alignment of 25% duty cycle non-overlapping waveforms are provided. A representative system includes a waveform synthesizer that generates a plurality of 25% duty cycle input waveforms and inverters that receive the input waveforms at the inputs of the inverters and invert the input waveforms, producing a plurality of inverted waveforms at the outputs of the inverters. The system also includes NOR gates that receive the plurality of inverted waveforms at the inputs of the NOR gates and pass through one of the inverted waveforms at the outputs of the NOR gates responsive to three inverted waveforms of the plurality of inverted waveforms being at logic “0”; and mixers having inputs that receive the pass-through waveform and a first radio frequency (RF) signal, wherein the mixers combine the pass-through waveform and the RF signal into an output signal.Type: GrantFiled: January 27, 2012Date of Patent: August 20, 2013Assignee: CSR Technology, Inc.Inventor: Ronald C. Alford
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Publication number: 20130210373Abstract: 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: ApplicationFiled: August 20, 2012Publication date: August 15, 2013Applicant: CSR TECHNOLOGY INC.Inventors: Noshir Dubash, Thomas E. Ricks, JR., Richard J. McConnell
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Patent number: 8508605Abstract: A method and device are provided for method for stabilization of image data by an imaging device. In one embodiment, a method includes detecting image data for a first frame and a second frame, performing motion estimation to determine one or more motion vectors associated with global frame motion for image data of the first frame, performing an outlier rejection function to select at least one of the one or more motion vectors, and determining a global transformation for image data of the first frame based, at least in part, on motion vectors selected by the outlier rejection function. The method may further include determining a stabilization transformation for image data of the first frame by refining the global transformation to correct for unintentional motion and applying the stabilization transformation to image data of the first frame to stabilize the image data of the first frame.Type: GrantFiled: April 7, 2010Date of Patent: August 13, 2013Assignee: CSR Technology Inc.Inventors: Yuri Dolgin, Anatoly Gurevich, Eran Pinhasov, Victor Pinto
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Patent number: 8509685Abstract: Systems and methods for managing power consumption of a transceiver, e.g., Bluetooth, are provided. A representative transceiver includes an antenna that receives analog radio frequency (RF) signals, and a RF analog circuitry that receives and processes the analog RF signals from the antenna. An analog-to-digital converter (ADC) receives and converts the processed analog RF signals to digital RF signals. A digital circuitry includes a RF power detector that receives the digital RF signals and determines a RF power of the analog RF signals from the antenna based on the digital RF signals. A computing device instructs the RF analog circuitry to operate in low current drain RF receiver mode during page scanning and/or inquiry scanning. The computing device is designed to receive the RF power of the received analog RF signals and manages the power consumption of the transceiver based on the RF power.Type: GrantFiled: April 30, 2009Date of Patent: August 13, 2013Assignee: CSR Technology, Inc.Inventor: Joakim Landmark
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Patent number: 8503814Abstract: An apparatus and methods are provided for determining control parameters for image enhancement. In one embodiment a method for determining control parameters includes receiving image data for a first frame and calculating an adaptive threshold value based on the image data. The method includes determining a pixel slope distribution for a pixel window of the image data, wherein the pixel window is selected based on the adaptive threshold value and determining a spectrum estimation coefficient based on the pixel distribution, wherein the spectrum estimation coefficient is determined based on the spectral components of the image data. The method may then include determining one or more control parameters for enhancement of the image data based on the spectrum estimation coefficient, wherein the one or more control parameters relate to filtering parameters for adaptive enhancement of image data.Type: GrantFiled: December 14, 2009Date of Patent: August 6, 2013Assignee: CSR Technology Inc.Inventors: Oscar Ayzenberg, Vlad Fruchter
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Patent number: 8502927Abstract: A method of displaying an image. The method includes acts of receiving pixel data and pixel timing and control signals corresponding to the image, and formatting the pixel data based on a selected communication standard and a transmitter bit rate that corresponds to a number of pixel data bits to be transmitted each transmitter clock cycle.Type: GrantFiled: August 17, 2010Date of Patent: August 6, 2013Assignee: CSR Technology Inc.Inventors: Chen Chen, Lei He
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Patent number: 8503815Abstract: The described methods and corresponding apparatus are for use in highlight recovery in a set of image data. The image data is inverted, treated by a digital lighting process, the subsequently inverted again. This allows the set of data image to be treated for dynamic range compression of detail in both the dark regions and the light regions by the same algorithm. In other words, the process applied to the dark regions can be performed by a correction algorithm and the process applied to the light regions performed by the same algorithm, but with the image data negated before and after the correction algorithm is applied.Type: GrantFiled: May 23, 2007Date of Patent: August 6, 2013Assignee: CSR Technology, Inc.Inventor: Itsik Dvir
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Publication number: 20130195225Abstract: Systems and methods for improving the timing alignment of 25% duty cycle non-overlapping waveforms are provided. A representative system includes a waveform synthesizer that generates a plurality of 25% duty cycle input waveforms and inverters that receive the input waveforms at the inputs of the inverters and invert the input waveforms, producing a plurality of inverted waveforms at the outputs of the inverters. The system also includes NOR gates that receive the plurality of inverted waveforms at the inputs of the NOR gates and pass through one of the inverted waveforms at the outputs of the NOR gates responsive to three inverted waveforms of the plurality of inverted waveforms being at logic “0”; and mixers having inputs that receive the pass-through waveform and a first radio frequency (RF) signal, wherein the mixers combine the pass-through waveform and the RF signal into an output signal.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: CSR TECHNOLOGY INC.Inventor: Ronald C. Alford
