Robert B Kost

20060029152, Feb 9, 2006

Aug 3, 2004

10/910195

Robert Kost - Gilbert AZ, US
Michael Waldo - Phoenix AZ, US
Kent Torell - Phoenix AZ, US

General Dynamics Decision Systems, Inc. - Scottsdale AZ

H04L 27/20

375295000

A low-power digital communications transmitter () includes a programmable digital-processing circuit (), which may be provided by a digital signal processor (DSP), a programmable direct digital synthesizer (DDS), and a constant-envelope, high power amplifier (). The DDS () is programmed to provide pulse-shaping and IF/RF signal modulation functions. The digital-processing circuit () produces only one sample per unit interval () and is programmed so that the one sample per unit interval () is a frequency-profile index symbol (″) produced from a I,Q baseband symbol (′). The DDS () converts each frequency-profile index symbol (″) into a frequency profile () that controls the frequency of a synthesizer () to induce modulation into a periodic output () of the synthesizer. Moreover, the frequency profile () is configured to confine spectral emissions within a spectral mask ().

57938083, Aug 11, 1998

Dec 27, 1995

8/579324

Jeffrey D. Rowe - Glendale AZ
David A. Bailey - Glendale AZ
Robert R. Kost - Peoria AZ

Honeywell Inc. - Minneapolis MN

H03K 708
H03K 908

375238

Apparatus and method for controlling a plurality of pulse width modulated devices from a single controller including condition sensors to input the controller, a logic unit to determine the error between the sensed values and the desired values of the conditions and a direct memory access unit which is digitally coded with the error values, the pulse width modulated device being connected to receive the outputs of the direct memory access unit and operable to control the conditions.

6081215, Jun 27, 2000

Jul 6, 1998

9/110308

Robert Roy Kost - Gilbert AZ
Ronald Wayne Kassik - Scottsdale AZ

Motorola, Inc. - Schaumburg IL

H03M 110

341120

An apparatus for wide bandwidth analog to digital and digital to analog signal conversion is disclosed. An input/output stage (40) is coupled to an external analog system and includes reference voltages for calibration of the analog to digital (A/D) conversion process. A conversion stage (46), comprising a plurality of A/D converters (ADC) (48, 50) and a digital to analog converter (52), is coupled to the input/output stage and to a digital signal conditioning stage (54) which is coupled to an external digital system. Offset and gain errors in the outputs of each ADC are corrected by the application of appropriate correction parameters in the digital signal conditioning stage. The sampling intervals for each ADC are phased to allow the digital outputs of the ADCs to be interleaved and form a resulting digital data stream with a sampling rate a multiple of that of any one ADC.