Patents by Inventor Roger G. Cox

Roger G. Cox 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).

  • Accumulator for complex numbers
    Patent number: 5010509
    Abstract: An intermediate storage register is added to the combinational logic of an accumulator and is located so that a second term may be stored in the first half of an adder array, while a first term continues the accumulation process in the second half of the array.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: April 23, 1991
    Assignee: United Technologies Corporation
    Inventors: Roger G. Cox, Mark A. Reber, Michael W. Yeager
  • Single chip complex floating point numeric processor
    Patent number: 4996661
    Abstract: A pipelined arithmetic processor includes a pair of multipliers in parallel feeding an ALU that, in turn, feeds a pair of parallel accumulators, the various sections being connected by controllable data paths and controlled by a set of pipelined registers feeding a series of decoders.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: February 26, 1991
    Assignee: United Technologies Corporation
    Inventors: Roger G. Cox, Michael W. Yeager, Lance L. Flake
  • Frequency synthesizer
    Patent number: 3976945
    Abstract: A frequency synthesizer employs a reference oscillator, a cycle swallower, a modulo-N counter, a programmable delay generator, and an accumulator to generate pulses at a precise, selected frequency which is any rational fraction of the reference oscillator frequency. The period between pulses is kept constant by use of the programmable delay generator to substantially reduce cycle-to-cycle phase variations, and to thus assure an output signal of the selected frequency that has high spectral purity.
    Type: Grant
    Filed: September 5, 1975
    Date of Patent: August 24, 1976
    Assignee: Hewlett-Packard Company
    Inventor: Roger G. Cox