1
Chun C Lu, William J Miller, Jack E Stephenson, Jay P Jayapalan: Digital voice transmission having improved echo suppression. Racal Data Communications, Jerry A Miller, William A Newton, March 24, 1987: US04652703 (80 worldwide citation)

A digital voice communication apparatus having improved echo suppression includes a transmission gain detection circuit for detecting a near talker signal and a receiver gain detection circuit for detecting a far talker signal. An echo detecting circuit detects which of the near talker and far talke ...


2
Stephen J Winter, Jack E Stephenson: Performance enhancing memory interleaver for data frame processing. Racal Datacom, William A Newton, July 7, 1998: US05778414 (45 worldwide citation)

Disclosed is a frame processing engine for receiving and processing a data frame having a header and a payload, comprising a first memory for receiving at least a portion of the header of the data frame; a second memory for receiving the payload of the data frame; and a controller, upon receipt of t ...


3
Jack E Stephenson, Jay P Jayapalan, Ming Luh Kao, Charles R Baugh, Jerry A Miller: Access circuit diagnostics for integrated services digital network. Racal Data Communications, Jerry A Miller, March 8, 1988: US04730313 (44 worldwide citation)

A method of providing B channel diagnostics to an integrated services digital network (ISDN) comprises the steps of monitoring error performance on the ISDN D channel and comparing the D channel error performance to a predetermined criterion as a measure of the B channel error performance. If the pr ...