Patents by Inventor Mark M. Okamura

Mark M. Okamura 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: 8441947
    Abstract: A packet controller for simultaneous processing of data packets transmitted via a plurality of communication channels includes a plurality of inputs to receive a respective plurality of signals, such that each of the plurality of signals is indicative of a presence of a data packet on a respective one of the plurality of communication channels, a clock source to supply a periodic clock signal, a plurality of independent processing modules coupled to the respective plurality of inputs to simultaneously process the plurality of signals, such that each of the plurality of independent processing modules implements a respective state machine driven by the periodic clock signal to process the respective signal independently of every other one of the plurality of processing modules, and an output to transmit an output signal indicative of a presence of at least one data packet on one or more of the plurality of communication channels.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 14, 2013
    Assignee: Hart Communication Foundation
    Inventors: Wallace A. Pratt, Jr., Chuck Middleton, Mark M. Okamura, Daraius Hathiram, Ronald E. Ham
  • Publication number: 20100110916
    Abstract: A packet controller for simultaneous processing of data packets transmitted via a plurality of communication channels includes a plurality of inputs to receive a respective plurality of signals, such that each of the plurality of signals is indicative of a presence of a data packet on a respective one of the plurality of communication channels, a clock source to supply a periodic clock signal, a plurality of independent processing modules coupled to the respective plurality of inputs to simultaneously process the plurality of signals, such that each of the plurality of independent processing modules implements a respective state machine driven by the periodic clock signal to process the respective signal independently of every other one of the plurality of processing modules, and an output to transmit an output signal indicative of a presence of at least one data packet on one or more of the plurality of communication channels.
    Type: Application
    Filed: June 23, 2009
    Publication date: May 6, 2010
    Applicant: HART COMMUNICATION FOUNDATION
    Inventors: Wallace A. Pratt, JR., Chuck Middleton, Mark M. Okamura, Daraius Hathiram, Ronald E. Ham
  • Patent number: 7238936
    Abstract: A detector assembly has a current measuring device with a saturation threshold level, and a gain variation means. A signal is generated in response to the particles detected, a first data point corresponding to a peak of interest is acquired from the signal. If the first data point is near, at or above the saturation threshold level of the current measuring device, the gain of the gain variation means is adjusted such that the peak of interest in the signal is reduced in intensity.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: July 3, 2007
    Assignee: Thermo Finnigan LLC
    Inventors: Mark M. Okamura, Michael W. Senko, Scott T. Quarmby, Jae C. Schwartz