Patents Represented by Attorney Shemwell Mahamedi LLP
  • Patent number: 7529141
    Abstract: Disclosed herein are embodiments of an asynchronous memory device that use internal delay elements to enable memory access pipelining. In one embodiment, the delay elements are responsive to an input load control signal, and are calibrated with reference to periodically received timing pulses. Different numbers of the delay elements are configured to produce different asynchronous delays and to strobe sequential pipeline elements of the memory device.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: May 5, 2009
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Ely K. Tsern, Craig E. Hampel, Donald C. Stark
  • Patent number: 7529746
    Abstract: A content search circuit for determining whether an input string matches one or more of a plurality of regular expressions, the content search circuit including an instruction memory for storing a plurality of microprograms, each microprogram embodying a corresponding one of the regular expressions, a control circuit having an input to receive the input string, and having a number of outputs, and a plurality of search engines, each having a first input coupled to a corresponding output of the control circuit and having a second input coupled to the instruction memory, wherein each search engine is selectable to execute any of the microprograms stored in the instruction memory to search the input string for any of the regular expressions embodied in the microprograms.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: May 5, 2009
    Assignee: NetLogic Microsystems, Inc.
    Inventors: Michael E. Ichiriu, Martin Fabry, Larry A. Wall, Sanjay Sreenath
  • Patent number: 7525534
    Abstract: Embodiments of the invention provide an effective keypad assembly and keypad layout for mobile computing devices. In particular, embodiments of the invention provide keyboard layouts and designs. Additionally, embodiments described herein provide for stack components to make keyboards operable on small-form factor devices.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: April 28, 2009
    Assignee: Palm, Inc.
    Inventors: Peter Skillman, Richard Gioscia, Michael Yurochko, Arthur Zarnowitz
  • Patent number: 7525053
    Abstract: A key structure assembly is provided for a mobile computing device. The key structure assembly includes a keycap having at least a first segment and a second segment. A first actuation member extends inward into the housing from the first segment of the keycap, and a second actuation member extends inward from the second segment of the key cap. A substrate including a plurality of electrical connects, including a first electrical contact aligned underneath the first actuation member, and a second electrical contact aligned underneath the second actuation member. The keycap is moveable inward to direct either the first actuation member into contact with the first electrical contact, or the second actuation member into contact with the second electrical contact. One or more sections of material are positioned above the first electrical contact and the second electrical contact.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: April 28, 2009
    Assignee: Palm, Inc.
    Inventor: Mark Babella
  • Patent number: 7519200
    Abstract: An embodiment provides for enabling retrieval of a collection of captured images that form at least a portion of a library of images. For each image in the collection, a captured image may be analyzed to recognize information from image data contained in the captured image, and an index may be generated, where the index data is based on the recognized information. Using the index, functionality such as search and retrieval is enabled. Various recognition techniques, including those that use the face, clothing, apparel, and combinations of characteristics may be utilized. Recognition may be performed on, among other things, persons and text carried on objects.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: April 14, 2009
    Assignee: Like.com
    Inventors: Salih Burak Gokturk, Dragomir Anguelov, Vincent Vanhoucke, Kuang-Chih Lee, Diem Vu, Danny Yang, Munjal Shah, Azhar Khan
  • Patent number: 7508451
    Abstract: Phase noise mitigation in an analog video receiver implemented in an integrated circuit device. A phase correction value that indicates a phase offset between a synthesized sinusoid and a reference sinusoid conveyed in a horizontal retrace region of a composite video signal is periodically generated. A phase error that will accumulate during an interval between horizontal retrace regions of the composite video signal is estimated based, at least in part, on the phase correction value, and the phase of a chroma signal component of the composite video signal is adjusted based on the estimated phase error.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: March 24, 2009
    Assignee: Telegent Systems, Inc.
    Inventors: Samuel Sheng, Weijie Yun
  • Patent number: 7505295
    Abstract: A content addressable memory (CAM) device having a multi-row write function. The CAM device includes a CAM array and an address circuit. The CAM array includes a plurality of CAM cells and word lines coupled to respective rows of the CAM cells. The address circuit is coupled to the CAM array and configured to activate a plurality of the word lines simultaneously to enable a write value to be stored within a selected plurality of the rows of CAM cells.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: March 17, 2009
    Assignee: NetLogic Microsystems, Inc.
    Inventors: Bindiganavale S. Nataraj, Sandeep Khanna
  • Patent number: 7505086
    Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes a mixing circuit to mix an analog video signal with a sinusoid to generate a frequency-shifted analog video signal, and an offset cancellation circuit to obtain a sample of the frequency-shifted analog video signal during a first time interval and, based on the sample, generate an offset cancellation signal that, when summed with the frequency-shifted analog video signal, reduces a substantially time-invariant offset in the frequency-shifted analog video signal.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: March 17, 2009
    Assignee: Telegent Systems, Inc.
    Inventors: Weijie Yun, Samuel Sheng
  • Patent number: 7505356
    Abstract: A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: March 17, 2009
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Lawrence Lai, Chad A. Bellows, Wayne S. Richardson
  • Patent number: 7501919
    Abstract: In a signal communication device, a frequency-selective filter has at least one component that is biased by a control signal to establish a center frequency of the frequency-selective filter. A closed-loop bias generator is provided to generate the control signal and to adjust the control signal based, at least in part, on a comparison of the control signal and a reference signal.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: March 10, 2009
    Assignee: Telegent Systems, Inc.
    Inventors: Samuel W. Sheng, Michael Khitrov
  • Patent number: 7498882
    Abstract: An integrated circuit device includes a variable-gain amplifier, memory circuit and gain control update circuit. The variable-gain amplifier generates an amplified signal having an amplitude according to a gain control value that is stored, at least during a first interval, within the memory circuit. The update circuit generates an updated gain control value based on the amplified signal during the first interval, and outputs the updated gain control value to the memory circuit to be stored therein at a conclusion of the first interval.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 3, 2009
    Assignee: Rambus Inc.
    Inventors: William J. Dally, John W. Poulton
  • Patent number: 7500075
    Abstract: A memory is disclosed comprising a first memory portion, a second memory portion, and an interface, wherein the memory portions are electrically isolated from each other and the interface is capable of receiving a row command and a column command in the time it takes to cycle the memory once. By interleaving access requests (comprising row commands and column commands) to the different portions of the memory, and by properly timing these access requests, it is possible to achieve full data bus utilization in the memory without increasing data granularity.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: March 3, 2009
    Assignee: Rambus Inc.
    Inventor: Billy Garrett, Jr.
  • Patent number: 7495513
    Abstract: An integrated circuit device includes a variable-gain amplifier, memory circuit and gain control update circuit. The variable-gain amplifier generates an amplified signal having an amplitude according to a gain control value that is stored, at least during a first interval, within the memory circuit. The update circuit generates an updated gain control value based on the amplified signal during the first interval, and outputs the updated gain control value to the memory circuit to be stored therein at a conclusion of the first interval.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: February 24, 2009
    Assignee: Rambus Inc.
    Inventors: William J. Dally, John W. Poulton
  • Patent number: 7486104
    Abstract: An integrated circuit device having graduated on-die termination. The integrated circuit device includes an input to receive a data signal, and first and second termination circuits. The first termination circuit includes a first load element and a first switch element to switchably couple the first load element to the data signal input. The second termination circuit includes a second load element and a second switch element to switchably couple the second load element to the data signal input.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: February 3, 2009
    Assignee: RAMBUS Inc.
    Inventors: Kyung Suk Oh, Ian P. Shaeffer
  • Patent number: 7487200
    Abstract: A digital signal processor. The digital signal processor includes a first data classification block. The first data classification block outputs a first block priority number associated with a first data stored in the first data classification block that matches a search key. The digital signal processor includes a second data classification block. The second data classification block outputs a second priority number associated with a second data stored in the second data classification block that matches the search key. The digital signal processor includes a device index processor. The device index processor selects a most significant block priority number from the first block priority number and the second block priority number.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: February 3, 2009
    Assignee: NetLogic Microsystems, Inc.
    Inventor: Varadarajan Srinivasan
  • Patent number: 7484064
    Abstract: A method and apparatus for signaling between devices of a memory system is provided. In accordance with an embodiment of the invention, one or more of several capabilities are implemented to provide heretofore unattainable levels of important system metrics, for example, high performance and/or low cost.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: January 27, 2009
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, Ely K. Tsern, Richard E. Perego, Craig E. Hampel
  • Patent number: D588594
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: March 17, 2009
    Assignee: Palm, Inc.
    Inventor: Yoshimichi Matsuoka
  • Patent number: D588603
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: March 17, 2009
    Assignee: Palm, Inc.
    Inventor: Yoshimichi Matsuoka
  • Patent number: D590817
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: April 21, 2009
    Assignee: Palm, Inc.
    Inventors: Richard Gloscia, Chrome Cebe
  • Patent number: D591739
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: May 5, 2009
    Assignee: Palm, Inc.
    Inventor: Yoshimichi Matsuoka