Harris Corporation

Daniel Ernest Stephens

Paul Edward Voglewede

Mark Chamberlain

Fred C Kellerman

Edwin McCall Leiby, Iii

Scott Zeller

Patrick Lang

William Nelson Furman

Richard Taylor

Lloyd Palum

Timothy James Giles

Nathan T Prosser

Nicholas Paul Shields

Michael E Wilkerson-Barker

Timothy Giles

Mark Walter Chamberlain

Iii Edwin Mccall Leiby

A direct conversion receiver device may receive I and Q signals. The direct conversion receiver device may include a blind IQ balance circuit configured to balance the I and Q signals without a pilot signal, and a mixer coupled to the blind IQ balance circuit and configured to generate I and Q baseband signals using an operational frequency, the operational frequency being based upon bandwidth and modulation of the I and Q signals. The blind IQ balance circuit may include a first stage configured to generate an intermediate amplitude balanced Q signal based upon the I and Q signals, and a second stage coupled to the first stage and configured to generate phased balanced I and Q signals based upon the intermediate amplitude balanced Q signal and the I signal.

Direct conversion receiver device with first and second stages and related methods

To avoid signal jamming, a method is provided for selecting a dwell channel on a receiver in a frequency hopping communication system. The method includes: measuring a noise level on channels over which a data signal is received at the receiver; selecting a dwell channel based on the estimated noise levels, where the dwell channel having the lowest noise level amongst a group of permissible channels over which to acquire a signal from a transmitter; and tuning the receiver to the selected dwell channel during a search state in which the receiver attempts to synchronize with a transmitter.

Signal jamming avoidance method for a frequency hopping communication system

A software defined radio includes a radio circuit and an executable radio software system operable with the radio circuit and conforming to the software communications architecture (SCA) specification. An operating environment is defined and includes a plurality of waveform components that are loaded when the radio circuit is initialized or a waveform component is instantiated, and reloaded at runtime after the waveform component is instantiated for transmitting and receiving voice data.

Software defined radio for loading waveform components at runtime in a software communications architecture (SCA) framework

A software defined radio includes a radio circuit powered by a battery and formed as a pair of radio subsystems having radio components that draw power from the battery. An executable radio software system conforms to the Software Communications Architecture (SCA) specification and defines an operating platform environment that allows a waveform application to operate with the radio circuit. A power management service is operative with the pair of radio subsystems to coordinate the power among the radio components.

Power management system for SCA based software defined radio and related method

Growing community of inventors

Rochester, NY, United States of America

Daniel Ernest Stephens