1
Daniel D McRae, William N Furman: Frequency management system for use in multistation H.F. communication network. Harris Corporation, Antonelli Terry & Wands, October 3, 1989: US04872182 (102 worldwide citation)

A frequency management scheme for a multistation H.F. communication network establishes communication channels among network stations over respective ones of K frequencies, so that network stations may communicate with one another. Any station desiring to communicate with another station, repeatedly ...


2
William N Furman, John W Nieto, Fred C Kellerman, Brian C Padalino: Communications system using adaptive filter that is selected based on output power. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, December 28, 2010: US07860200 (23 worldwide citation)

A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has an input, a plurality of non-adaptive and adaptive filter taps with weighted coefficients, and an output. The received signal is passed through the adaptive filter and around adaptive ...


3
William N Furman, John W Nieto, William L Tyler: Communications device and related method that detects symbol timing. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, November 15, 2011: US08059767 (11 worldwide citation)

A communications device includes a signal input for receiving signals such as a binary phase shift keyed (BPSK) communications signal having a repeated preamble bit or symbol pattern. A modem processes the communications signal and includes a demodulator and processor that generates an initial frequ ...


4
William N Furman, John W Nieto, Marcelo De Risio: Communications system with speech-to-text conversion and associated methods. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, November 12, 2013: US08583431 (6 worldwide citation)

A communications system includes a first communications device cooperating with a second communications device. The first communications device multiplexes a digital speech message and a corresponding text message into a multiplexed signal, and wirelessly transmits the multiplexed signal. The second ...


5
John W Nieto, William N Furman, Michael A Wadsworth: System and method for communicating data using constant amplitude equalized waveform. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, March 24, 2009: US07508884 (4 worldwide citation)

A system communicates data and includes an encoder for encoding communications data with a forward error correction code. A data randomizer randomizes the communications data with a random bit sequence and a combining circuit combines the communications data with known symbols into frames. A modulat ...


6
William N Furman, John W Nieto, Brian C Padalino: Communications system and device using simultaneous wideband and in-band narrowband operation and related method. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, December 20, 2011: US08081722 (4 worldwide citation)

A communications device includes a signal input for receiving both wideband and in-band, narrowband communication signals having wideband communications data that is transmitted over a wideband communications channel and narrowband communications data that is transmitted within an in-band, narrowban ...


7
William N Furman, John W Nieto, Michael A Wadsworth: System and method for communicating data using constant amplitude waveform with hybrid orthogonal and MSK or GMSK modulation. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, April 1, 2008: US07352795 (4 worldwide citation)

A communications system of the present invention includes a transmitter that is operative for combining an orthogonal Walsh modulation with a minimum shift keying or Gaussian minimum shift keying waveform to form a hybrid communications signal that carries communications data over a constant amplitu ...


8
William N Furman, John W Nieto, Fred C Kellerman, Brian C Padalino: Communications system using adaptive filter and variable delay before adaptive filter taps. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, January 4, 2011: US07864835 (3 worldwide citation)

A communication system receives a modulated signal that carries encoded communication data. An adaptive filter has a plurality of adaptive filter taps and weighted coefficients and a variable delay circuit operative before the adaptive filter taps for separating the spacing of multipath introduced b ...


9
John W Nieto, William N Furman: System and method for variable forward error correction (FEC) protection. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, December 1, 2009: US07627803 (3 worldwide citation)

A communications system includes a transmitter having an encoder for encoding communications data and varying at least one of a puncturing of the code rate and a repetition rate on different portions of the communications data. As a result, a variable forward error correction is added to different p ...


10
William N Furman, John W Nieto: System and method for removing interfering narrowband signals from wide bandwidth receive signal. Harris Corporation, Allen Dyer Doppelt Milbrath & Gilchrist P A, March 31, 2009: US07512197 (3 worldwide citation)

In accordance with the present invention, the system and method removes interfering signals from a communications signal and includes a Fast Fourier Transform (FFT) circuit for taking the FFT of a received signal and segmenting the signal into segments. A frequency shifting circuit can shift each se ...