1
Ronald E Sorace, Victor S Reinhardt, Clinton Chan: Phase array calibration orthogonal phase sequence. Hughes Electronics Corporation, Georgann S Grunebach, M W Sales, January 19, 1999: US05861843 (169 worldwide citation)

Methods and systems for calibrating an array antenna are described. The array antenna has a plurality of antenna elements each having a signal with a phase and an amplitude forming an array antenna signal. For calibration, the phase of each element signal is sequentially switched one at a time throu ...


2
Harold A Rosen, Victor S Reinhardt, Andrew L Strodtbeck, Jennifer L Vollbrecht: Frequency reuse technique for a high data rate satellite communication system. Hughes Aircraft Company, Elizabeth E Leitereg, Terje Gudmestad, W K Denson Low, December 5, 1995: US05473601 (76 worldwide citation)

Frequency reuse and data coding methods for use in a high data rate satellite communication system. The frequency reuse method provides for dual polarization and spatial reuse of transmit and receive beams to provide for a twelve-fold increase in the effective bandwidth and number of users that may ...


3
Victor S Reinhardt, Steven O Lane: Antenna array of radiators with plural orthogonal ports. Hughes Electronics, Terje Gudmestad, W K Denson Low, July 2, 1996: US05532706 (74 worldwide citation)

A phased array antenna (10A, 10B, 10C) is constructed of an array of radiators (24), each of which has a radiating aperture, a first port (26) and a second port (26). The first port introduces a first radiation with a first polarization, and the second port introduces a second radiation with a secon ...


4
Harold A Rosen, Victor S Reinhardt, Parthasarathy Ramanujam, Gregory C Busche, Andrew L Strodtbeck, Jennifer L Vollbrecht: High data rate satellite communication system. Hughes Aircraft Company, Phyllis Y Price, W K Denson Low, April 29, 1997: US05625624 (62 worldwide citation)

A satellite-based communication system providing high rate transfer of data between linked terminals. The system comprises a plurality of user terminals (VSAT's) that are linked by and that communicate with each other by way of a satellite-based relay system. A network control center provides config ...


5
Victor S Reinhardt, Arnold L Berman: Method and apparatus for calibrating phased array receiving antennas. Hughes Aircraft Company, William J Streeter, Wanda K Denson Low, September 28, 1993: US05248982 (40 worldwide citation)

Disclosed is a method and apparatus for calibrating phased array receiving antennas that includes circuitry for generating a pair of calibration signals separable one from the other. The signals are injected into the delay elements of the antenna from opposite ends of a complementary calibration cab ...


6
Victor S Reinhardt, Kim V Gould, Kevin M McNab: Randomized digital/analog converter direct digital synthesizer. Hughes Aircraft Company, Steven M Mitchell, Robert A Westerlund, Wanda K Denson Low, May 7, 1991: US05014231 (35 worldwide citation)

A sine output or phase interpolation direct digital synthesizer for use in satellite programs having a random or pseudorandom code generator for summing a random digital word whose value ranges from zero to just under the least significant bit of a digital-to-analog converter with the current regist ...


7
Victor S Reinhardt: Polar digital beamforming method and system. Hughes Electronics, Elizabeth E Leitereg, Terje Gudmestad, W K Denson Low, July 30, 1996: US05541607 (29 worldwide citation)

A system and method for polar digital beamforming of at least one independent transmit beam is disclosed. A computer generates a digital signal representing both pointing and modulation information which is communicated to a plurality of subarray controllers which generate the polar weighting signal ...


8
Victor S Reinhardt, Iradj Shahriary: Spurless fractional divider direct digital frequency synthesizer and method. Hughes Aircraft Company, S M Mitchell, M J Meltzer, A W Karambelas, March 21, 1989: US04815018 (22 worldwide citation)

A direct digital frequency synthesizer including a counter circuit for receiving input signal pulses and for providing a corresponding output signal after receiving a number of input signal pulses, the number being selected based on the state of a control signal. The invention includes a circuit for ...


9
Victor S Reinhardt, George S Des Brisay Jr, Kim V Gould: Fast settling phase lock loop. Hughes Aircraft Company, Steven M Mitchell, Robert A Westerlund, W K Denson Low, June 26, 1990: US04937536 (20 worldwide citation)

A phase lock loop frequency synthesizer for providing a synthesized frequency signal employing a modified adaptive loop construction having parallel feedback paths about a loop amplifier. A normal feedback path having a narrow bandwidth characteristic includes a feedback capacitor having one end con ...


10
Victor S Reinhardt: Method and apparatus for reducing aliasing in signal processing. Hughes Aircraft Company, Steven M Mitchell, Wanda Denson Low, December 26, 1989: US04890248 (18 worldwide citation)

A method and apparatus for reducing the introduction of alias frequencies in the processing of signals. A sequence of jittered pulses is provided, each pulse occurring during one of a sequence of time intervals of duration T at a time determined by a sequential one of a set of independent random num ...