Patents by Inventor Christopher M. Ward

Christopher M. Ward 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: 10423423
    Abstract: Within a processor, speculative finishes of load instructions only are tracked in a speculative finish table by maintaining an oldest load instruction of a thread in the speculative finish table after data is loaded for the oldest load instruction, wherein a particular queue index tag assigned to the oldest load instruction by an execution unit points to a particular entry in the speculative finish table, wherein the oldest load instruction is waiting to be finished dependent upon an error check code result. Responsive to a flow unit receiving the particular queue index tag with an indicator that the error check code result for data retrieved for the oldest load instruction is good, finishing the oldest load instruction in the particular entry pointed to by the queue index tag and writing an instruction tag stored in the entry for the oldest load instruction out of the speculative finish table for completion.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: September 24, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Susan E. Eisen, David A. Hrusecky, Christopher M. Mueller, Dung Q. Nguyen, A. James Van Norstrand, Jr., Kenneth L. Ward
  • Publication number: 20190187992
    Abstract: Implementations are disclosed for a simultaneous multithreading processor configured to execute a plurality of threads. In one implementation, the simultaneous multithreading processor is configured to select a first thread of the plurality of threads according to a predefined scheme, and access an instruction completion table to determine whether the first thread is eligible to have a first instruction prioritized. Responsive to determining that the first thread is eligible to have the first instruction prioritized, the simultaneous multithreading processor is further configured to execute the first instruction of the first thread using a dedicated prioritization resource.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 20, 2019
    Inventors: Kenneth L. WARD, Susan E. EISEN, Dung Q. NGUYEN, Albert J. Van Norstrand, JR., Glenn O. KINCAID, Christopher M. MUELLER
  • Publication number: 20190187993
    Abstract: A simultaneous multithreading processor and related method of operating are disclosed. The method comprises dispatching portions of a first instruction to be executed by a respective plurality of execution units of the processor; receiving, at an instruction completion table of the processor, respective finish reports responsive to execution of the portions of the first instruction; determining, using the received finish reports, that all of the portions of the first instruction have been executed; and updating the instruction completion table to indicate that the first instruction is ready for completion.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 20, 2019
    Inventors: Kenneth L. WARD, Susan E. EISEN, Dung Q. NGUYEN, Glenn O. KINCAID, Christopher M. MUELLER, Tu-An T. NGUYEN, Gaurav MITTAL, Deepak K. SINGH
  • Publication number: 20190166291
    Abstract: An apparatus for taking moving pictures, a method for taking moving pictures, and a novel pixel sensor array are disclosed. The apparatus includes a rectangular imaging array, a plurality of column processing circuits, and a controller. The rectangular imaging array is characterized by a plurality of rows and columns of UHDR pixel sensors and a plurality of readout lines, and a plurality of row select lines. Each column processing circuit is connected to a corresponding one of the plurality of readout lines. The controller causes the rectangular imaging array to measure a plurality of images of a scene that is illuminated by a pulsating light source characterized by an illumination period and a dark period. Each of the images is generated in a frame period which includes an exposure period and a dead period, the dead period being less than the dark period.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 30, 2019
    Applicant: BAE Systems Imaging Solutions Inc.
    Inventors: Alberto M. Magnani, Christopher R. Adams, Calvin B. Ward
  • Publication number: 20140084970
    Abstract: An electrical circuit comprising a line driver for providing Ethernet signals is disclosed. The line driver comprises a voltage mode line driver for producing 1000BT and 100BT Ethernet signals and an active output impedance line driver arranged parallel to the voltage mode line driver. The line driver is capable of producing 1000BT or 100BT or 10BT Ethernet signals, wherein either the voltage mode line driver or the active impedance line driver is active.
    Type: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Applicant: Broadcom Corporation
    Inventors: Frank van der GOES, Christopher M. Ward, Jan Mulder, Ovidiu Bajdechi
  • Patent number: 8598906
    Abstract: An electrical circuit comprising a line driver for providing Ethernet signals is disclosed. The line driver comprises a voltage mode line driver for producing 1000BT and 100BT Ethernet signals and an active output impedance line driver arranged parallel to the voltage mode line driver. The line driver is capable of producing 1000BT or 100BT or 10BT Ethernet signals, wherein either the voltage mode line driver or the active impedance line driver is active.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: December 3, 2013
    Assignee: Broadcom Corporation
    Inventors: Frank van der Goes, Christopher M. Ward, Jan Mulder, Ovidiu Bajdechi
  • Publication number: 20130182717
    Abstract: Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.
    Type: Application
    Filed: November 1, 2012
    Publication date: July 18, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Mark Berman, Manolito Catalasan, Ovidiu Bajdechi, Christopher M. Ward, Bruce H. Conway, Derek Tam, Frank van der Goes
  • Patent number: 8325756
    Abstract: Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: December 4, 2012
    Assignee: Broadcom Corporation
    Inventors: Mark Berman, Manolito Catalasan, Ovidiu Bajdechi, Christopher M. Ward, Bruce H. Conway, Derek Tam, Frank Van Der Goes
  • Patent number: 8045066
    Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: October 25, 2011
    Assignee: Broadcom Corporation
    Inventors: Pieter Vorenkamp, Klaas Bult, Frank Carr, Christopher M. Ward, Ralph Duncan, Tom W. Kwan, James Y. C. Chang, Haideh Khorramabadi
  • Publication number: 20110067083
    Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 17, 2011
    Applicant: Broadcom Corporation
    Inventors: Pieter Vorenkamp, Klaas Bult, Frank Carr, Christopher M. Ward, Ralph Duncan, Tom W. Kwan, James Y.C. Chang, Haideh Khorramabadi
  • Patent number: 7821581
    Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: October 26, 2010
    Assignee: Broadcom Corporation
    Inventors: Pieter Vorenkamp, Klaas Bult, Frank Carr, Christopher M. Ward, Ralph Duncan, Tom W. Kwan, James Y. C. Chang, Haideh Khorramabadi
  • Publication number: 20100159084
    Abstract: An electrochemical sensor for organic molecules such as ethylene includes an electrochemical cell, gas sample inlet means and means for detecting current produced by the oxidation of the organic molecule at the anode of the cell. The sensor is capable of sensing multiple organic molecules in some embodiments. A voltage is applied to the anode of the cell to provide energy to drive the oxidation reaction and produce a corresponding current. The sensor of the invention can be made as a small, hand-held unit that is capable of real-time detection of various organic species.
    Type: Application
    Filed: July 13, 2009
    Publication date: June 24, 2010
    Inventors: Alireza Shekarriz, W. Lloyd Allen, Daniel James Haulkner, Christopher M. Ward, Debra M. Gilbuena
  • Patent number: 7701295
    Abstract: A high efficiency class-AB amplifier is disclosed. The amplifier comprises a first input stage and a second input stage, both coupled to a class-AB biasing mesh and an output stage, wherein the outputs of the first and second input stages are directly coupled to the output transistors in the output stage. In one embodiment, a first gate of the first input stage and of the second input stage are coupled together to receive the same input and a second gate of the first input stage and of the second input stage are coupled together to receive the same input. In another embodiment, the first input stage and second input stage may further comprise cascode transistors for coupling the two input stages to the class-AB biasing mesh. In yet another embodiment, a 3V supply is used and 1V transistors are used to improve gain and 3V transistors are used to protect the 1V transistors.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: April 20, 2010
    Assignee: Broadcom Corporation
    Inventors: Ovidiu Bajdechi, Christopher M. Ward, Klaas Bult
  • Patent number: 7662625
    Abstract: The present invention relates to methods for detecting the differentiation status of stem cells comprising detecting the expression of 5T4 antigen in said stem cells. The present invention also relates to methods for separating populations of undifferentiated or differentiated mammalian stem cells from a mixture of differentiated and undifferentiated stem cells through detection of 5T4 expression.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: February 16, 2010
    Assignee: Cancer Research Technology Limited
    Inventors: Peter L. Stern, Miles W. Carroll, Christopher M. Ward
  • Patent number: 7560013
    Abstract: An electrochemical sensor for organic molecules such as ethylene includes an electrochemical cell, gas sample inlet means and means for detecting current produced by the oxidation of the organic molecule at the anode of the cell. The sensor is capable of sensing multiple organic molecules in some embodiments. A voltage is applied to the anode of the cell to provide energy to drive the oxidation reaction and produce a corresponding current. The sensor of the invention can be made as a small, hand-held unit that is capable of real-time detection of various organic species.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: July 14, 2009
    Assignee: Fluid Analytics, Inc.
    Inventors: Allroza Shekarriz, W. Lloyd Allen, Daniel James Faulkner, Christopher M. Ward, Debra M. Gilbuena
  • Publication number: 20080284919
    Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.
    Type: Application
    Filed: July 30, 2008
    Publication date: November 20, 2008
    Applicant: Broadcom Corporation
    Inventors: Pieter Vorenkamp, Klaas Bult, Frank Carr, Christopher M. Ward, Ralph Duncan, Tom W. Kwan, James Y.C. Chang, Haideh Khorramabadi
  • Publication number: 20080253356
    Abstract: Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 16, 2008
    Inventors: Mark Berman, Manolito Catalasan, Ovidiu Bajdechi, Christopher M. Ward, Bruce H. Conway, Derek Tam, Frank van der Goes
  • Patent number: 7423699
    Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programable attenuation and a programable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 9, 2008
    Assignee: Broadcom Corporation
    Inventors: Pieter Vorenkamp, Klaas Bult, Frank Carr, Christopher M. Ward, Ralph Duncan, Tom W. Kwan, James Y. C. Chang, Haideh Khorramabadi
  • Patent number: 7403041
    Abstract: A line driver for generating 10 BT signals is disclosed. Digital symbols to be transmitted via a 10 BT Ethernet line are converted by a digital-to-analog converter into a corresponding analog voltage signal, which is fed into an active output impedance line driver. The digital-to-analog converter also receives a reference voltage reflecting variations of the supply voltage and adjusts its output signal accordingly to provide a deliberately variable analog voltage signal to the line driver.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: July 22, 2008
    Assignee: Broadcom Corporation
    Inventors: Ovidiu Bajdechi, Christopher M. Ward
  • Publication number: 20070295203
    Abstract: An electrochemical sensor for organic molecules such as ethylene includes an electrochemical cell, gas sample inlet means and means for detecting current produced by the oxidation of the organic molecule at the anode of the cell. The sensor is capable of sensing multiple organic molecules in some embodiments. A voltage is applied to the anode of the cell to provide energy to drive the oxidation reaction and produce a corresponding current. The sensor of the invention can be made as a small, hand-held unit that is capable of real-time detection of various organic species.
    Type: Application
    Filed: January 30, 2007
    Publication date: December 27, 2007
    Inventors: Allroza Shekarriz, W. Lloyd Allen, Daniel James Faulkner, Christopher M. Ward, Debra M. Gilburena