Patents by Inventor Chris D. Matthews

Chris D. Matthews has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7804890
    Abstract: A discussion of improving integrated device deterministic response to test vectors. For example, limiting the transmission delay for an integrated device's response within known bounds by synchronizing an initialization training sequence to a reset deassertion. Specifically, the proposal facilitates response determinism from the DUT by synchronizing training sequences and subsequently synchronizing flit transmission to reset assertion as sampled by reference clock.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: September 28, 2010
    Assignee: Intel Corporation
    Inventors: Muraleedhara H. Navada, Tim Frodsham, Sanjay Dabral, Allen Baum, Chris D. Matthews, Chris C. Gianos, Rahul R. Shah, Theodore Z. Schoenborn
  • Patent number: 7623396
    Abstract: Power consumption of an address bus interface is reduced by reducing drive duration of address signals on the address bus. The address bus interface may operate in normal or power saving mode. In power saving mode, address signals are driven for a quarter of a clock period instead of half a clock period and address strobe edges are moved so that they are aligned with valid address signals.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: November 24, 2009
    Assignee: Intel Corporation
    Inventors: Chunyu Zhang, Chris D. Matthews
  • Patent number: 7577861
    Abstract: A method and apparatus is described herein for serializing input data streams into an output data stream. A first and second input data stream are sampled upon rising edges of a first and second clocking signal, respectively, to reduce jitter from dependence on the falling edges of the clocking signals. The second clocking signal is 180 degrees out of phase with the first clocking signal to sample the first input data stream in the first unit interval of an output data stream and the second input data stream in the second unit interval of the output data stream. Consequently, a serialized output data stream is driven at twice the frequency of both the first and the second input data streams, including logical information from the first and second input data streams every period of the output data stream.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: August 18, 2009
    Assignee: Intel Corporation
    Inventors: Alexander Levin, Sriram Badrinarayanan, Chris D. Matthews
  • Publication number: 20080288797
    Abstract: Power consumption of an address bus interface is reduced by reducing drive duration of address signals on the address bus. The address bus interface may operate in normal or power saving mode. In power saving mode, address signals are driven for a quarter of a clock period instead of half a clock period and address strobe edges are moved so that they are aligned with valid address signals.
    Type: Application
    Filed: March 22, 2007
    Publication date: November 20, 2008
    Inventors: Chunyu Zhang, Chris D. Matthews
  • Patent number: 6963991
    Abstract: Embodiments of the invention relate to a memory control hub (MCH) clock master of an MCH. Typically, in a computer system, a processor is coupled to the MCH by a front-side bus (FSB). Further, an input/output control hub (ICH) is typically coupled to the MCH by a back-side bus or Hub Link. In one embodiment, a host phase locked loop (HPLL) of the MCH clock master receives an FSB clock signal transmitted on the FSB and generates a local synchronous clock signal based upon the FSB clock signal. A delayed lock loop (DLL) of the MCH clock master also receives the FSB clock signal and generates a system clock signal. Particularly, the DLL synchronizes the system clock signal to the local synchronous clock and drives the system clock signal to many different devices on the board.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: November 8, 2005
    Assignee: Intel Corporation
    Inventors: Kevin M. Hill, Chris D. Matthews, Amir A. Bashir, Kevin E. Arendt, Andrew M. Volk
  • Publication number: 20030226052
    Abstract: Embodiments of the invention relate to a memory control hub (MCH) clock master of an MCH. Typically, in a computer system, a processor is coupled to the MCH by a front-side bus (FSB). Further, an input/output control hub (ICH) is typically coupled to the MCH by a back-side bus or Hub Link. In one embodiment, a host phase locked loop (HPLL) of the MCH clock master receives an FSB clock signal transmitted on the FSB and generates a local synchronous clock signal based upon the FSB clock signal. A delayed lock loop (DLL) of the MCH clock master also receives the FSB clock signal and generates a system clock signal. Particularly, the DLL synchronizes the system clock signal to the local synchronous clock and drives the system clock signal to many different devices on the board.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventors: Kevin M. Hill, Chris D. Matthews, Amir A. Bashir, Kevin E. Arendt, Andrew M. Volk