Patents Represented by Attorney North Weber & Baugh LLP
  • Patent number: 8325797
    Abstract: A novel system and method of Reduced-Temporal-Resolution Update (RTRU) and quantizing video transform coefficients is provided for use using hybrid coding standards when receiving a frame from within a group of video frames, where the amplitude of the quantization parameter is defined for the quantization of the frame according to a reduced temporal resolution update process; where the amplitude of the quantization parameter for macroblocks in the frame is defined according to a reduced temporal resolution update process; and where a bitstream is composed for transmission and subsequent decoding by a standard compliant decoder.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: December 4, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Lulin Chen, Jiangtao Wen
  • Patent number: 8322212
    Abstract: A MEMS sensor is provided with a substrate and a sensor element. The sensor element moves in response to an influence registered by the sensor primarily in an oscillating turn around a sensor axis that is parallel to the substrate. The sensor has an anchor arranged on the substrate in order to hold the sensor element onto the substrate. A connecting element arranges the sensor element on the anchor.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: December 4, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Alessandro Rocchi
  • Patent number: 8326349
    Abstract: An access device is described herein for determining and selecting, for a cellular call received by a cellular transceiver of the access device, one of a plurality of networks to route the call to. In some embodiments, the determining and selecting may be based at least on a type of each of a plurality of network interfaces of the access device and availability of each corresponding network, the network interfaces including at least two of a cellular retransmitter, an IP networking interface, or a PSTN interface. In various embodiments, if a cellular network is determined and selected, the access device may relay the call. Also, if an IP or PSTN network is determined and selected, the access device may establish on behalf of the call an outgoing call through the IP or PSTN network and translate signals of the cellular call to signals for the IP or PSTN network.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: December 4, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: David Brown, Ajit B. Pendse
  • Patent number: 8326068
    Abstract: A method for encoding an image is disclosed. The method generally includes the steps, of (A) generating a quantization matrix as a function of at least four parameters, (B) optimizing the parameters to maximize a quality metric for encoding the image and (C) encoding the image with the quantization matrix as optimized.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: December 4, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Huipin Zhang, Guy Cote
  • Patent number: 8325798
    Abstract: In some embodiments, a motion estimation search window cache is adaptively re-organized according to frame properties including a frame width and a number of reference frames corresponding to the current frame to be encoded/decoded. The cache reorganization may include an adaptive mapping of reference frame locations to search window cache allocation units (addresses). In some embodiments, a search window is shaped as a quasi-rectangle with truncated upper left and lower right corners, having a full-frame horizontal extent. A search range is defined in a central region of the search window, and is laterally bounded by the truncated corners.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: December 4, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Sorin C. Cismas, Simon Butler
  • Patent number: 8305131
    Abstract: A zero-crossing detector with effective offset cancellation includes a set of series connected capacitors and an amplifier having an input terminal. An offset capacitor is operatively connected between the amplifier and the set of series connected capacitors. A switch is operatively connected to the input terminal, and an offset sampling capacitor is operatively connected to the switch. The switch connects the offset sampling capacitor to the input terminal of the amplifier during a charge transfer phase.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: November 6, 2012
    Assignee: Maxim Integrated, Inc.
    Inventor: Hae-Seung Lee
  • Patent number: 8305401
    Abstract: A light management unit (LMU) includes multiple brightness compensation modules and algorithms mixed together in a digital domain. The LMU is configured to receive content data, such as gamma correction data generated by a graphics or video processor and corresponding to frames of video data, ambient light data obtained using a light sensor, ambient temperature data using a temperature sensor, and a manual brightness setting. An ambient light compensation value is multiplied into the manual brightness settings so the resulting compensation value is a percent of the manual settings. A content adjustment interface (CAI) module is configured to compensate the backlight brightness according to real-time video data. The content adjustment performed by the CAI module is combined with the ambient light adaptive dimming. A final stage step generator enables a gradual brightness transition to minimize, if not eliminate jitter and jump.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: November 6, 2012
    Assignee: Maxim Integrated, Inc.
    Inventor: Henrik Lie
  • Patent number: 8304293
    Abstract: Disclosed are systems and methods for improving the thermal performance of integrated circuit packages. Aspects of the present invention include improved thermal package structures and methods for producing the same through the application of one or more thermal spreaders in the package. In embodiments, a thermal spreader is incorporated in a semiconductor chip package between a semiconductor die and its die pad. By including a thermal spreader in an IC package, the package can handle higher levels of power while maintaining approximately the same temperature of the package or can reduce the temperature of the package when operating at the same power level, as compared to a package without a thermal spreader.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: November 6, 2012
    Assignee: Maxim Integrated, Inc.
    Inventors: Tarak A. Railkar, Steven D. Cate
  • Patent number: 8306118
    Abstract: A method for encoding video, comprising the steps of (A) encoding a number of macroblocks of a video signal with a non-residual mode disabled, (B) checking each of the macroblocks for a null information pattern, and (C) re-encoding each of the macroblocks having the null information pattern with the non-residual mode enabled.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: November 6, 2012
    Assignee: Maxim Integrated, Inc.
    Inventors: José R. Alvarez, Jiangtao Wen
  • Patent number: 8294495
    Abstract: A circuit includes a level-crossing detector to generate a level-crossing detection signal when an input signal crosses a predetermined voltage level. A first stage set of capacitors is operatively coupled to the level-crossing detector. A ramp circuit is operatively coupled to the set of series-connected capacitors. A second stage set of capacitors is operatively coupled to the first stage set of capacitors and the ramp circuit. The ramp circuit includes a feedback capacitor and a preset switch to provide a linear ramp output.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: October 23, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Hae-Seung Lee
  • Patent number: 8270483
    Abstract: A method to control weighted prediction for video compression. The method comprises (A) generating statistics based upon analysis of a plurality of video frames, (B) detecting a fade condition based upon the statistics, (C) generating one or more estimated weighted prediction parameters based upon the statistics when the fade condition is detected and (D) encoding the plurality of video frames. The encoding takes into account the estimated weighted prediction parameters when generated.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: September 18, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Rui Zhang, Guy Cote
  • Patent number: 8269345
    Abstract: A bump contact electrically connects a conductor on a substrate and a contact pad on a semiconductor device mounted to the substrate. The first end of an electrically conductive pillar effects electrical contact and mechanical attachment of the pillar to the contact pad with the pillar projecting outwardly from the semiconductor device. A solder crown reflowable at a predetermined temperature into effecting electrical contact and mechanical attachment with the conductor is positioned in axial alignment with the second end of the pillar. A diffusion barrier electrically and mechanically joins the solder bump to the second end of the pillar and resists electro-migration into the first end of the solder crown of copper from the pillar. One diffusion barrier takes the form of a 2-20 micron thick control layer of nickel, palladium, titanium-tungsten, nickel-vanadium, or tantalum nitride positioned between the pillar and the solder crown.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: September 18, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Pradip D. Patel
  • Patent number: 8269172
    Abstract: Embodiments of the present invention provide systems, devices and methods for detecting both ambient light and proximity to an object. This detection is performed by a double-layered photodiode array and corresponding circuitry such that ambient light and proximity detection are enabled by a plurality of integrated photodiodes. In various embodiments of the invention, ambient light is sensed using a first set of photodiodes and a second set of photodiodes such that a spectral response is created that is approximately equal to the visible light spectrum. Proximity detection is realized using an integrated photodiode, positioned below the first and second sets of photodiodes, that detects infrared light and generates a response thereto.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: September 18, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventor: David Skurnik
  • Patent number: 8270552
    Abstract: An apparatus for transferring data in a non-spread domain to a spread domain. The apparatus comprises a first-in-first-out (FIFO) memory; a write pointer generator adapted to generate a write pointer for writing data into the FIFO memory in response to a non-spread clock signal; a spread-clock generator adapted to generate a spread clock signal based on the non-spread clock signal; a read pointer generator adapted to generate a read pointer for reading data from the FIFO memory in response to the spread clock signal; and a controller adapted to control the spread-clock generator in response to the read and write pointers indicating predetermined potential data overflow or underflow of the FIFO memory.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: September 18, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Mustafa Ertugrul Oner
  • Patent number: 8259703
    Abstract: Embodiments of the present invention determine skew relative to a plurality of communication paths on a network system. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: September 4, 2012
    Assignee: Infinera Corporation
    Inventors: Drew D. Perkins, David F. Welch, Ting-Kuang Chiang, Edward E. Sprague, Parthiban Kandappan, Steven G. Grubb, Prasad Paranjape, Biao Lu
  • Patent number: 8253856
    Abstract: An apparatus including a first circuit and a second circuit. The first circuit may be configured to generate a first control signal, a second control signal and a third control signal in response to a first interlaced video signal. The second circuit may be configured to generate a second interlaced video signal in response to the first interlaced video signal, the first control signal, the second control signal and the third control signal. The second circuit may be further configured to vertically scale the first interlaced video signal in an extended vertical domain.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: August 28, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: José R. Alvarez, Simon Butler
  • Patent number: 8249463
    Abstract: Embodiments of the present invention provide systems, devices and methods for managing skew within a polarized multi-channel optical transport system. In a DP-QPSK system, skew between polarized channels is compensated within the transport system by adding latency to at least one of the polarized channels. The amount of added latency may depend on various factors including the skew tolerance of the transport system and the amount of skew across the channels without compensation. This latency may be added optically or electrically, and at various locations on a channel signal path within a transport node, such as a terminal transmitter or receiver. Additionally, various embodiments of the invention provide for novel methods of inserting frame alignment bit sequences within the transport frame overhead so that alignment and skew compensation may be more efficiently and accurately performed at the transport receiver.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: August 21, 2012
    Assignee: Infinera Corporation
    Inventor: Drew D. Perkins
  • Patent number: 8230414
    Abstract: A system, apparatus and a method are described for providing efficient software distribution and cache management on a plurality of client machines in a network. In one embodiment of the invention, a cache management software agent is installed on one or more client machines to monitor a status of software versions stored locally on the machines. The cache management software agent performs a check before uploading a matching version of a large software application from a network element in order to determine whether the upload is appropriate. In particular, the agent identifies whether a matching version of the application is already present on the client machine to see if the upload is necessary. If a matching version of the application is not resident on the machine, then the latest version of the large software application is uploaded to the client machine from the network element.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: July 24, 2012
    Assignee: Infinera Corporation
    Inventors: Steven Joseph Hand, Sriram Subramanian
  • Patent number: 8175113
    Abstract: Embodiments of the present invention route a wavelength division multiplexed signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: May 8, 2012
    Assignee: Infinera Corporation
    Inventors: Drew D. Perkins, David F. Welch, Ting-Kuang Chiang, Charles H. Joyner, Edward E. Sprague, Parthiban Kandappan, Stephen Grubb, Prasad Paranjape
  • Patent number: 8175261
    Abstract: An echo canceller comprises foreground and background filters. The background filter locates and confirms peaks, defines active regions centered about the confirmed peaks and updates coefficients of the foreground filter when the background filter is more effective than the foreground filter. A method for improved adaptive echo cancellation comprises configuring a foreground filter, calculating an echo-return loss responsive to the foreground filter, identifying the location of one or more peaks repetitively in a block of data in a background filter, confirming one or more identified peaks over a defined number of blocks before defining an active region equally about the identified peaks in the background filter, filtering the sparse impulse response responsive to the active regions, calculating an echo-return loss responsive to the background filter, and updating the foreground filter when the background filter includes a more effective set of filter coefficients.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: May 8, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Andrew Gough, David Brown