Patents by Inventor Richard C. Walker

Richard C. Walker 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: 10366027
    Abstract: A method for steering data for an I/O write operation includes, in response to receiving the I/O write operation, identifying, at an interconnect fabric, a cache of one of a plurality of compute complexes as a target cache for steering the data based on at least one of: a software-provided steering indicator, a steering configuration implemented at boot initialization, and coherency information for a cacheline associated with the data. The method further includes directing, via the interconnect fabric, the identified target cache to cache the data from the I/O write operation. The data is temporarily buffered at the interconnect fabric, and if the target cache attempts to fetch the data while the data is still buffered at the interconnect fabric, the interconnect fabric provides a copy of the buffered data in response to the fetch operation instead of initiating a memory access operation to obtain the data from memory.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: July 30, 2019
    Assignees: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Eric Christopher Morton, Elizabeth Cooper, William L. Walker, Douglas Benson Hunt, Richard Martin Born, Richard H. Lee, Paul C. Miranda, Philip Ng, Paul Moyer
  • Publication number: 20190163656
    Abstract: A method for steering data for an I/O write operation includes, in response to receiving the I/O write operation, identifying, at an interconnect fabric, a cache of one of a plurality of compute complexes as a target cache for steering the data based on at least one of: a software-provided steering indicator, a steering configuration implemented at boot initialization, and coherency information for a cacheline associated with the data. The method further includes directing, via the interconnect fabric, the identified target cache to cache the data from the I/O write operation. The data is temporarily buffered at the interconnect fabric, and if the target cache attempts to fetch the data while the data is still buffered at the interconnect fabric, the interconnect fabric provides a copy of the buffered data in response to the fetch operation instead of initiating a memory access operation to obtain the data from memory.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Eric Christopher MORTON, Elizabeth COOPER, William L. WALKER, Douglas Benson HUNT, Richard Martin BORN, Richard H. Lee, Paul C. MIRANDA, Philip NG, Paul MOYER
  • Patent number: 8824838
    Abstract: Active optical cable assemblies, and systems, methods, and adapter modules and integrated circuits for facilitating communication between a host and a client device over a fiber optic cable are disclosed. In one embodiment, an active optical cable assembly includes a fiber optic cable having at least one optical fiber, a host active circuit, a client active circuit, a host connector, and a client connector. Upon a connection between the host active circuit and a host device, the client termination switch closes to couple the client termination impedance to the ground reference potential. Upon a connection between the client active circuit and a client device, the host termination switch closes to the couple the host termination impedance to the ground reference potential. In another embodiment, a method includes enabling a host termination impedance upon a connection of an active optical cable to a client device.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: September 2, 2014
    Assignee: Corning Cable Systems LLC
    Inventor: Richard C. Walker
  • Patent number: 8403571
    Abstract: Active optical cable assemblies, and systems, methods, and adapter modules and integrated circuits for facilitating communication between a host and a client device over a fiber optic cable are disclosed. In one embodiment, an active optical cable assembly includes a fiber optic cable having at least one optical fiber, a host active circuit, a client active circuit, a host connector, and a client connector. Upon a connection between the host active circuit and a host device, the client termination switch closes to couple the client termination impedance to the ground reference potential. Upon a connection between the client active circuit and a client device, the host termination switch closes to the couple the host termination impedance to the ground reference potential. In another embodiment, a method includes enabling a host termination impedance upon a connection of an active optical cable to a client device.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: March 26, 2013
    Assignee: Corning Cable Systems LLC
    Inventor: Richard C. Walker
  • Publication number: 20120141132
    Abstract: Active optical cable assemblies, and systems, methods, and adapter modules and integrated circuits for facilitating communication between a host and a client device over a fiber optic cable are disclosed. In one embodiment, an active optical cable assembly includes a fiber optic cable having at least one optical fiber, a host active circuit, a client active circuit, a host connector, and a client connector. Upon a connection between the host active circuit and a host device, the client termination switch closes to couple the client termination impedance to the ground reference potential. Upon a connection between the client active circuit and a client device, the host termination switch closes to the couple the host termination impedance to the ground reference potential. In another embodiment, a method includes enabling a host termination impedance upon a connection of an active optical cable to a client device.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 7, 2012
    Inventor: Richard C. Walker
  • Publication number: 20120141064
    Abstract: Active optical cable assemblies, and systems, methods, and adapter modules and integrated circuits for facilitating communication between a host and a client device over a fiber optic cable are disclosed. In one embodiment, an active optical cable assembly includes a fiber optic cable having at least one optical fiber, a host active circuit, a client active circuit, a host connector, and a client connector. Upon a connection between the host active circuit and a host device, the client termination switch closes to couple the client termination impedance to the ground reference potential. Upon a connection between the client active circuit and a client device, the host termination switch closes to the couple the host termination impedance to the ground reference potential. In another embodiment, a method includes enabling a host termination impedance upon a connection of an active optical cable to a client device.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 7, 2012
    Inventor: Richard C. Walker
  • Patent number: 7259357
    Abstract: The invention seals, unseals and/or bonds plastics, waxes and resins via a thermal metal strip or wire coated with liquefiable substances that melt to open or separate and cool to congeal, seal, vulcanize or bond together when the wire or strip is energized in a shorted state (to heat) or not energized (to cool). Electronic switch modalities and sealing applications are optionally taught for security and tamper detection. In one modality, a unique signal is sent to the gate leg of a micro-processing chip (e.g. an SCR switch) where firmware recognizes the signal and permits current through a thermal wire. This innovation is optionally employed for Homeland Security.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: August 21, 2007
    Assignee: Kline and Walker LLC
    Inventor: Richard C. Walker
  • Patent number: 7221723
    Abstract: The present invention provides a multi-phase sampling system in which each sampler samples a transition and data of an incoming data signal. By enabling each sampler to sample a transition in addition to data of the incoming data signal, phase errors associated with each of the samplers can be determined. The phase error determinations provide valuable information that can be used 1) to correct the phase errors of the system sampling the incoming data signal, 2) to correct the phase errors of a multi-phase system that is transmitting the incoming data signal, and/or 3) to correct the phase errors of both a multi-phase system that is sampling an incoming data signal and of a multi-phase system that is transmitting the data signal.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: May 22, 2007
    Assignee: Agilent Technologies, Inc.
    Inventor: Richard C. Walker
  • Patent number: 7055073
    Abstract: Blocks of input data are received. The input data comprises packets of information words. The packets are preceded and followed by control words. A master transition is appended to the beginning of each block to form a respective frame for transmission. The master transition has a sense that depends on whether the block contains any control words. Additionally, for each block that contains one or more control words, a TYPE word indicating a structural property of the block is generated, the block is condensed to accommodate the TYPE word, and the TYPE word is inserted into the block. The coding method provides a very low overhead (3.125%) when implemented as a 64b/66b code.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: May 30, 2006
    Inventors: Richard C. Walker, Bharadwaj Amrutur, Richard W. Dugan
  • Patent number: 6975617
    Abstract: The network monitoring system comprises a network router with built-in monitoring data gathering. The network router includes channels through which data pass in packets. Each of the packets includes a packet header. The network router additionally includes a header copier and a packet generator. The header copier generates a header copy from the packet header of at least some of the packets. The packet generator receives the header copies and forms monitoring data packets from them. Each monitoring data packet additionally represents temporal data relating to the header copies included in it. A method of obtaining performance data relating to a data transmission network that includes a node passes data through the node in packets. Each of the packets includes a packet header. At least some of the packet headers are copied to obtain respective header copies as monitoring data from which monitoring data packets are formed.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: December 13, 2005
    Assignee: Agilent Technologies, Inc.
    Inventors: Richard C. Walker, Bharadwaj Amrutur, Peter Mottishaw, C. Steven Joiner, Larry A. Chesler, Ian Hardcastle
  • Patent number: 6965816
    Abstract: This invention, a Protected Primary Focal Node PFN is a Trusted Remote Activity Controller TRAC and mobile communication router platform that provides accountable remote and robotics control to transportation vehicles by interfacing with the vehicles E/E systems. It connects each vehicle either on the earth's surface or near the earth's surface with application specific intranets for air, sea and land travel, via either host commercial servers or agency providers through wireless communication gateways and then further interfaces these vehicles in a larger machine messaging matrix via wireless and IP protocols to further coordinate movement assess and manage equipment use and impact on the world resources, societies infrastructure and the environment. This filing focuses directly on PFN/TRAC System use to augment and upgrade public safety and security in the Airline Industry and restrict any unauthorized use of an aircraft.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: November 15, 2005
    Assignee: Kline & Walker, LLC
    Inventor: Richard C. Walker
  • Patent number: 6870520
    Abstract: An immersive display system which provides for an optical correlator for imaging a surface and generating data representative of the position or movement of the optical correlator and any object physically associated with the optical correlator. Imagery is generated and displayed on a display device in accordance with the data generated by the optical correlator.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: March 22, 2005
    Inventors: Richard C. Walker, Pierre H. Mertz, Barclay J. Tullis
  • Patent number: 6862701
    Abstract: Self testing of a data communication system that includes a presettable scrambler and a complementary presettable descrambler is performed by presetting the presettable scrambler to a preset state. A seed payload field is scrambled using the presettable scrambler to generate fields of a test sequence. The fields of the test sequence are transmitted and corresponding received test sequence fields are received. The received test sequence fields are descrambled using the presettable descrambler to generate respective recovered test sequence fields. Differences between the recovered test sequence fields and the seed payload field are then detected as errors. In an embodiment, the seed payload field and the preset state of the presettable scrambler are chosen to generate a test sequence that imposes a known stress, such as a given run length, to the data communication system.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: March 1, 2005
    Assignee: Agilent Technologies, Inc.
    Inventors: Richard C. Walker, Patricia A. Thaler
  • Publication number: 20040228364
    Abstract: Blocks of input data are received. The input data comprises packets of information words. The packets are preceded and followed by control words. A master transition is appended to the beginning of each block to form a respective frame for transmission. The master transition has a sense that depends on whether the block contains any control words. Additionally, for each block that contains one or more control words, a TYPE word indicating a structural property of the block is generated, the block is condensed to accommodate the TYPE word, and the TYPE word is inserted into the block. The coding method provides a very low overhead (3.125%) when implemented as a 64b/66b code.
    Type: Application
    Filed: March 30, 2004
    Publication date: November 18, 2004
    Inventors: Richard C. Walker, Bharadwaj Amrutur, Richard W. Dugan
  • Patent number: 6795064
    Abstract: A grey scale is generated by modulating light in response to an information signal using an electro-optical material. An analog sample is derived from the information signal, a drive signal is generated in response to the analog sample and the drive signal is applied to the electro-optical material. The drive signal has a sequence of a first temporal portion and a second temporal portion. The first temporal portion has a temporal duration that has a pre-determined relationship to the analog sample, and the second temporal portion is the temporal complement of the first temporal portion.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: September 21, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Richard C. Walker, Travis N. Blalock, Neela B. Gaddis
  • Patent number: 6760349
    Abstract: A multiplexer for use with switching apparatus for data communication networks. The multiplexer topology includes two or more groupings, or sections, each containing a plurality of individual channels. Each of the channels has an input buffer amplifier and an output Ft-doubler circuit. The outputs of all of the channels within a each particular channel section are connected in parallel relation, and fed to respective common-base transistor amplifiers. The outputs of all of the common-base amplifiers for each channel section, in turn, are connected in parallel and fed to the inputs of a pair of emitter-follower amplifiers. Through the use of selectively actuated current sources, each multiplexer channel is normally biased off, unless that channel is selected for a switching operation. Bleeder current sources are applied to the emitters of the common-base amplifiers to reduce output jitter from the channels which are biased off.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: July 6, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Peter Ho, Graham M. Flower, Richard C. Walker
  • Patent number: 6760551
    Abstract: The present invention is a decoder for decoding a signal. The decoder includes a discriminator and a threshold generator. The discriminator receives the signal and generates an output voltage equal to a first voltage if the signal is less than a threshold level that is input to the discriminator and equal to a second voltage if the signal is greater than the threshold level. The threshold level depends on the output from the discriminator in a preceding time interval that depends on the impulse response of a transmission link through which the input signal has passed. The threshold generator implements a low-pass analog filter that receives the output voltage during each of the clock periods and generates therefrom a filtered output signal.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: July 6, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Adrian Wan-Chew Seet, Ken Nishimura, Richard C. Walker
  • Patent number: 6735328
    Abstract: A personal display system having an ocular scan unit for generating user identification information and an interface for conveying user identification to a connected system.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: May 11, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Rene P. Helbing, Richard C. Walker, Pierre Mertz, Barry Bronson, Ken A. Nishimura
  • Publication number: 20040080337
    Abstract: The present invention is a decoder for decoding a signal. The decoder includes a discriminator and a threshold generator. The discriminator receives the signal and generates an output voltage equal to a first voltage if the signal is less than a threshold level that is input to the discriminator and equal to a second voltage if the signal is greater than the threshold level. The threshold level depends on the output from the discriminator in a preceding time interval that depends on the impulse response of a transmission link through which the input signal has passed. The threshold generator implements a low-pass analog filter that receives the output voltage during each of the clock periods and generates therefrom a filtered output signal.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Adrian Wan-Chew Seet, Ken Nishimura, Richard C. Walker
  • Patent number: 6718491
    Abstract: Blocks of input data that include control words and a packet of information words are received. The packet has a start preceded by ones of the control words and an end followed by others of the control words. The blocks are smaller than the packet. A determination of whether the block consists exclusively of information words is made. When the block consists exclusively of information words, a master transition having a first sense is appended to the block to form a frame. When the block does not consist exclusively of information words, the block is condensed to accommodate a TYPE word, the TYPE word is generated and inserted into the block and a master transition is appended to the block to form the frame. The TYPE word has a value that indicates one of the following structural properties of the block: (a) the position of the start of the packet in the block, (b) the position of the end of the packet in the block, and (c) the block being composed exclusively of control words.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: April 6, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Richard C. Walker, Bharadwaj Amrutur, Richard W. Dugan