1
Kenneth P Weiss, Mario F DeRango, Daniel R Schroeder, Leslie D Mutz, Brian W Lacy, Mark D Chapman: Transceiver self-diagnostic testing apparatus and method. Motorola, Darleen J Stockley, August 9, 1994: US05337316 (51 worldwide citation)

The present invention includes an apparatus and a method for transceiver self-diagnostic testing in a communication system. A feedback unit (228, 326) is utilized that allows performance of a loopback test independent of a transmit frequency to receive frequency difference without undue proliferatio ...


2
Mark D Chapman, Thomas P Ryan, Stanley J Knapczyk, Carlton R Van Tassle: Method and apparatus for scan operation in an integrated voice and data communication system. Motorola, Steven R Santema, Indira Saladi, July 5, 2005: US06915130 (15 worldwide citation)

The invention relates to a scan mode of operating for a communication system that supports both voice and data communication services. Prior to entering the scan mode, a mobile station (28) provides a message to the fixed network equipment, and particularly a data controller (22) within the fixed ne ...


3
Mark D Chapman, Wyatt L Hendrick, Paul N Smith, Howard Fein: Optical, laser-based, or lidar measuring systems and method. Rockwell Collins, Donna P Suchy, Daniel M Barbieri, April 8, 2014: US08692983 (1 worldwide citation)

Present novel and non-trivial optical, laser-based measuring systems and method are disclosed. An optical, laser-based, or LIDAR measuring apparatus is comprised of a radiation receiver/transmitter, a beam-forming optical element, a beam steering device comprised of a deviation optical element and a ...


4
Mark D Chapman, John S Hamilton, Dalayr W Hight: System and method for improved simultaneous localization and mapping. Rockwell Collins, Angel N Gerdzhikov, Donna P Suchy, Daniel M Barbieri, May 16, 2017: US09651388

A system and method for simultaneous localization and mapping (SLAM), comprising an improved Geometric Dilution of Precision (GDOP) calculation, a reduced set of feature landmarks, the use of Inertial Measurement Units (IMU) to detect measurement motion, and the use of one-time use features and abso ...