1
Richard L Zinser Jr, Seth D Silverstein, Steven R Koch: Two-input crosstalk-resistant adaptive noise canceller. General Electric Company, Geoffrey H Krauss, James C Davis Jr, Marvin Snyder, March 10, 1987: US04649505 (174 worldwide citation)

A two-input crosstalk-resistant adaptive noise canceller receives a primary input signal including a desired speech signal portion and an undesired noise signal portion and also receives a reference input signal having a reference noise input portion and a crosstalk speech portion. The canceller has ...


2
Richard L Zinser Jr: Method for pitch-aligned high-frequency regeneration in RELP vocoders. General Electric Company, Geoffrey H Krauss, James C Davis Jr, Marvin Snyder, October 4, 1988: US04776014 (90 worldwide citation)

A method for pitch-aligned high frequency regeneration of a speech signal which has been sampled at a known sampling frequency f.sub.S and decimated at a known integer decimation ratio N practiced in the receiver portion of a RELP vocoder includes the steps of: providing at least one local carrier s ...


3
Craig F Szczutkowski, Richard L Zinser Jr, Satish Kappagantula, Eugene H Peterson III: Cryptographic digital signal transceiver method and apparatus. General Electric Company, Nixon & Vanderhye, March 28, 1989: US04817146 (58 worldwide citation)

Hybrid subband coding and decoding (using different encloding/decoding algorithms in at least one subband channel) and subband time delay compensation at a point of maximum digital bandwidth compression are effected so as to reduce required DSP on-chip memory requirements. At the same time a special ...


4
Richard L Zinser Jr, Steven R Koch: TDVC-to-MELP transcoder. Lockheed Martin Corporation, Townsend and Townsend and Crew, January 13, 2004: US06678654 (45 worldwide citation)

The system and method of the present invention comprises a compressed domain universal transcoder that transcodes a bit stream representing frames of data encoded according to a first compression standard (TDVC coding standard) to a bit stream representing frames of data according to a second compre ...


5
Richard L Zinser Jr: Integrated data link concept for air traffic control applications. General Electric Company, Lawrence P Zale, Marvin Snyder, August 8, 1995: US05440544 (17 worldwide citation)

An integrated full duplex radio data link for aircraft capable of a sustained 4 to 8 Mb/sec raw data transfer rate communicates on newly proposed dedicated digital channels (DDC) for radio communications between the existing analog VHF amplitude modulated (AM) voice channels, and causes no perceptib ...


6
Richard L Zinser Jr, Steven R Koch: MELP-to-LPC transcoder. General Electric Company, Howard IP Law Group PC, Jean K Testa, Kenneth R Glick, February 23, 2010: US07668713 (6 worldwide citation)

A method for transcoding a bit stream encoded according to a mixed-excitation linear prediction (MELP) standard to a bit stream encoded according to a linear predictive coding (LPC) standard, including: decoding a bit stream into a first set of vocoder parameters compatible with the MELP standard; t ...


7
Richard L Zinser Jr, Steven R Koch: Frequency domain format enhancement. General Electric Company, Howard IP Law Group PC, September 30, 2008: US07430507 (4 worldwide citation)

A method for enhancing speech prediction coefficient signals, including: a) receiving a set of prediction coefficient signals; b) calculating a set of amplitude spectrum coefficient signals based on the prediction coefficient signals; c) calculating a set of enhancement coefficient signals based on ...


8
Richard L Zinser Jr, Steven R Koch: Compressed domain voice activity detector. General Electric Company, Plevy Howard & Darcy PC, June 13, 2006: US07062434 (4 worldwide citation)

The system and method of the present invention comprises a compressed domain voice activity detector that detects the presence or absence of voice activity in a digital input signal. The method includes converting a digital input signal into parametric data. The parametric data is subsequently analy ...


9
Richard L Zinser Jr, Steven R Koch: LPC-to-MELP transcoder. General Electric Company, May 5, 2009: US07529662 (3 worldwide citation)

A method for transcoding a bit stream encoded according to a linear predictive coding (LPC) standard to a bit stream encoded according to a mixed-excitation linear prediction (MELP) standard, including: decoding a bit stream into a first set of vocoder parameters compatible with the LPC standard; tr ...


10
Richard L Zinser Jr, Martin W Egan: Method and apparatus for generating fill frames for voice over internet protocol (VoIP) applications. Lockheed Martin Corporation, Ronald E Prass Jr, Prass, June 15, 2010: US07738361 (1 worldwide citation)

A method and apparatus that generates fill frames for Voice over Internet Protocol (VoIP) applications in a communication device is disclosed. The method may include determining if there is a lost frame in a received communication, wherein if it is determined that there is a lost frame, setting a fr ...