Patents by Inventor Keith Michael Roberts

Keith Michael Roberts 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: 7124159
    Abstract: A decimation system and decimation circuit for decimating waveform data on an oscilloscope. The decimation circuit is implemented using sixteen parallel 16-to-1 multiplexers connected in parallel to a data bus which selectively captures samples based on control signals generated by a sample counting circuit. Decimation factor and phase values can be input to program the amount of decimation performed by the circuit. The decimation system provides even more flexibility in controlling the decimation and is formed by combining several of the decimation circuits with corresponding analog-to-digital converters and memory segments.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: October 17, 2006
    Assignee: LeCroy Corporation
    Inventors: Mark Steven Gorbics, Keith Michael Roberts
  • Patent number: 7076014
    Abstract: A method for synchronizing a plurality of sub-systems, comprising the steps of measuring a relationship between a divider associated with each of the plurality of sub-systems; and adjusting a phase of one or more of the dividers to a known relationship with one of the dividers. A command is issued synchronous to a divider associated with one of the plurality of sub-systems. The command is received at one of the sub-systems and is acted upon synchronous to a divider associated with the one of the sub-system receiving said command.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: July 11, 2006
    Assignee: LeCroy Corporation
    Inventors: Keith Michael Roberts, Stephen C. Ems
  • Patent number: 6859813
    Abstract: A decimation system and decimation circuit for decimating waveform data on an oscilloscope. The decimation circuit is implemented using sixteen parallel 16-to-1 multiplexers connected in parallel to a data bus which selectively captures samples based on control signals generated by a sample counting circuit. Decimation factor and phase values can be input to program the amount of decimation performed by the circuit. The decimation system provides even more flexibility in controlling the decimation and is formed by combining several of the decimation circuits with corresponding analog-to-digital converters and memory segments.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: February 22, 2005
    Assignee: LeCroy Corporation
    Inventors: Mark Steven Gorbics, Keith Michael Roberts
  • Publication number: 20030110194
    Abstract: A decimation system and decimation circuit for decimating waveform data on an oscilloscope. The decimation circuit is implemented using sixteen parallel 16-to-1 multiplexers connected in parallel to a data bus which selectively captures samples based on control signals generated by a sample counting circuit. Decimation factor and phase values can be input to program the amount of decimation performed by the circuit. The decimation system provides even more flexibility in controlling the decimation and is formed by combining several of the decimation circuits with corresponding analog-to-digital converters and memory segments.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 12, 2003
    Inventors: Mark Steven Gorbics, Keith Michael Roberts
  • Publication number: 20030107417
    Abstract: A method for synchronizing a plurality of sub-systems, comprising the steps of measuring a relationship between a divider associated with each of the plurality of sub-systems; and adjusting a phase of one or more of the dividers to a known relationship with one of the dividers. A command is issued synchronous to a divider associated with one of the plurality of sub-systems. The command is received at one of the sub-systems and is acted upon synchronous to a divider associated with the one of the sub-system receiving said command.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 12, 2003
    Inventors: Keith Michael Roberts, Stephen C. Ems