1
Mohsen Kavehrad, Peter J McLane: Spread spectrum wireless PBX. AT&T Company and AT&T Bell Laboratories, David R Padnes, Erwin W Pfeifle, June 9, 1987: US04672658 (291 worldwide citation)

The present invention relates to a wireless PBX network wherein direct sequence spread spectrum multiple access is used for voice and data communications to support a plurality of local-local and local-external calls. The present wireless PBX arrangement comprises a plurality of local user transceiv ...


2
Peter J McLane, Sangil Park, Dion M Funderburk: Method and apparatus for asynchronous timing recovery using interpolation filter. Motorola, Paul J Polansky, James L Clingan Jr, May 3, 1994: US05309484 (45 worldwide citation)

In an asynchronous communication system such as a V.32 modern (80), an input signal is sampled at a near-end clock rate. Each sample is then interpolated in an interpolation filter (92) to provide corresponding interpolated values. The interpolation filter (92) uses a selected one of a predetermined ...


3
Dion M Funderburk, Sangil Park, Peter J McLane: Symmetrically balanced phase and amplitude base band processor for a quadrature receiver. Motorola, Elizabeth A Apperly, March 1, 1994: US05291525 (14 worldwide citation)

A digital receiver (10) has a symmetrical base band processor (28, 30, 32, 34, and 36) which concurrently provides a left and a right channel of audio information. Because of the symmetrical design of the base band processor, each of the left and right channels of information has perfectly balanced ...