Patents by Inventor David R. Mielke

David R. Mielke 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).

  • Methods to compress range doppler map (RDM) values from floating point to decibels (dB)
    Patent number: 11552650
    Abstract: Embodiments of a telemetry device and methods to convert a binary floating point number to a compressed number is described herein. The binary floating point number may comprise a mantissa and an exponent. The telemetry device may determine a first number based on a product of the exponent and a constant, wherein the constant may be proportional to a logarithm of the number two. The telemetry device may determine a second number using one or more bits of the mantissa as an index into a predetermined lookup table. Values of the lookup table may be proportional to logarithms of candidate mantissa values. The telemetry device may determine the compressed number based on rounding of a sum. The sum may include the first and second numbers. The rounding may be based on a predetermined step size.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: January 10, 2023
    Assignee: Raytheon Company
    Inventors: Lloyd Cox, Matti R. Ingraham, David R. Mielke, Dan R. Sheen, Rhett Hayden
  • METHODS TO COMPRESS RANGE DOPPLER MAP (RDM) VALUES FROM FLOATING POINT TO DECIBELS (DB)
    Publication number: 20210273647
    Abstract: Embodiments of a telemetry device and methods to convert a binary floating point number to a compressed number is described herein. The binary floating point number may comprise a mantissa and an exponent. The telemetry device may determine a first number based on a product of the exponent and a constant, wherein the constant may be proportional to a logarithm of the number two. The telemetry device may determine a second number using one or more bits of the mantissa as an index into a predetermined lookup table. Values of the lookup table may be proportional to logarithms of candidate mantissa values. The telemetry device may determine the compressed number based on rounding of a sum. The sum may include the first and second numbers. The rounding may be based on a predetermined step size.
    Type: Application
    Filed: October 3, 2019
    Publication date: September 2, 2021
    Inventors: Lloyd Cox, Matti R. Ingraham, David R. Mielke, Dan R, Sheen, Rhett Hayden