1
Alan P Zabarsky, Suzette D Steiger, Edward F Staiano, Jerry L Sandvos: Two way personal message system with extended coverage. Motorola, Raymond A Jenski, Donald B Southard, February 17, 1987: US04644351 (393 worldwide citation)

A communications system for carrying messages via a radio channel between one central site of a plurality of central sites and a plurality of two-way remote data units is disclosed. Each central site has a radio coverage area and each remote unit has a unique address and association with one of the ...


2
Earl R Gomersall, Arthur F Cipolla: Real time, computer-driven retail pricing display system. Motorola, Donald B Southard, James W Gillman, Edward M Roney, February 19, 1985: US04500880 (337 worldwide citation)

A computer driven, informational display system is disclosed which visually displays selected information in real time. The arrangement is particularly adapted for displaying pricing and other associated information in retail establishments which utilize the standard Universal Product Code for the i ...


3
David E Borth, Ira A Gerson, Philip J Smanski, Richard J Vilmur: Automatic gain selector for a noise suppression system. Motorola, Douglas A Boehm, Donald B Southard, Charles L Warren, December 16, 1986: US04630305 (216 worldwide citation)

An automatic gain selector is disclosed for use with a noise suppression system which performs speech quality enhancement upon a noisy speech signal available at the input to generate a noise-suppressed speech signal at the output by spectral gain modification. The channel gain controller (240) of t ...


4
Timothy J Wilson: Channel selection in a multi-frequency radio data communication system. Motorola, Donald B Southard, December 11, 1990: US04977612 (196 worldwide citation)

A method and apparatus are disclosed for improved channel selection in a multi-frequency radio data communications system whereby a minimum level of signal/service quality may be maintained at all times without unduly impacting channel loading considerations. Specialized idle messages are utilized i ...


5
Jose Gutman, Steven C Shapiro: Paging system with improved acknowledge-back capabilities. Motorola, Donald B Southard, July 10, 1990: US04940963 (193 worldwide citation)

A paging system comprising a centrally located terminal and a plurality of remote pager units is disclosed wherein both automatic and manual acknowledge back signalling is provided. An appropriate acknowledge back signal by a called pager within a set interval indicates the message was duly receivie ...


6
David E Borth, Ira A Gerson, Richard J Vilmur: Automatic background noise estimator for a noise suppression system. Motorola, Douglas A Boehm, Donald B Southard, Charles L Warren, December 16, 1986: US04630304 (181 worldwide citation)

An improved background noise estimator (320) is disclosed for use with a noise suppression system (300) for generating an estimate of the background noise power spectral density provided to noise suppressor (310), which performs speech quality enhancement upon the pre-processed speech-plus-noise sig ...


7
Joseph P Heck: Dual conversion FM receiver using phase locked direct conversion IF. Motorola, Melvin A Schechtman, Donald B Southard, March 24, 1987: US04653117 (167 worldwide citation)

A receiver for frequency modulated signals, having down-conversion to a baseband, zero intermediate frequency for selectivity, followed by up-conversion to a non-zero IF for amplification, limiting, and demodulation.


8
David E Borth, Ira A Gerson, Richard J Vilmur: Noise suppression system. Motorola, Douglas A Boehm, Donald B Southard, Charles L Warren, December 9, 1986: US04628529 (166 worldwide citation)

An improved noise suppression system (400) is disclosed which performs speech quality enhancement upon speech-plus-noise signal available at the input (205) to generate a clean speech signal at the output (265) by spectral gain modification. The noise suppression system of the present invention incl ...


9
Larry Zibrik, Ronald J Vanderhelm, Robert W Hamilton, Oscar Garay: Integral diversity antenna for a laptop computer. Motorola, Donald B Southard, August 11, 1992: US05138328 (153 worldwide citation)

An integral diversity antenna especially suited for use in a laptop computer device without the need for changing or otherwise altering such devices pre-established form factor. Two separately located printed circuit board antenna structures are orthogonally mounted in an associated counterpoise. On ...


10
Gary W Persinotti: Wide area coverage radio communication system and method. Motorola, Edward M Roney, Donald B Southard, Raymond A Jenski, March 25, 1986: US04578815 (144 worldwide citation)

A wide area coverage radio communication system of the type adapted to relay a message substantially simultaneously from a plurality of fixed location sites to a plurality of portable or mobile units includes a plurality of repeaters at each of the sites. Each of the repeaters is arranged to transmi ...