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Class Information
Number: 341/117
Name: Coded data generation or conversion > Phase or time of phase change > Synchro or resolver signal > Digital signal to analog resolver or synchro signal
Description: Subject matter for converting from a digital input to analog values which represent the angular position of a resolver or synchro rotor relative to a reference position.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7620131 Digital clock controller, radio receiver, and methods for use therewith Nov. 17, 2009
7557743 D/A converter Jul. 7, 2009
7551108 Inverter system with input signal-processing apparatus and method for the same Jun. 23, 2009
7541952 Method and apparatus for offset and gain compensation for analog-to-digital converters Jun. 2, 2009
7541958 Error reduction for parallel, time-interleaved analog-to-digital converter Jun. 2, 2009
7538708 Efficient, selective error reduction for parallel, time-interleaved analog-to-digital converter May. 26, 2009
7535382 High speed quadrature counter May. 19, 2009
7432837 System and method for correcting DC offset Oct. 7, 2008
7417571 Method for providing a correlation Aug. 26, 2008
7391347 Radio receiver, system on a chip integrated circuit and methods for use therewith Jun. 24, 2008
7388528 Coding method and device for determining absolute angular position Jun. 17, 2008
7365661 Power converter circuitry and method Apr. 29, 2008
7348910 Reference module apparatus and method therefor Mar. 25, 2008
7289051 Digital-to-analog converters including charge pumps and related automatic laser power control devices and methods Oct. 30, 2007
7187309 Angle computation method and apparatus for variable reluctance resolver Mar. 6, 2007
7126514 Inverter control device and inverter control method Oct. 24, 2006
7084790 Device to effectuate a digital estimate of a periodic electric signal, related method and control system for an electric motor which comprises said device Aug. 1, 2006
7046177 Servo system, apparatus comprising a servo system, sigma delta modulator, and integrated circuit comprising a sigma delta modulator May. 16, 2006
6911925 Linearity compensation by harmonic cancellation Jun. 28, 2005
6894629 Resolver/digital converter May. 17, 2005
6778922 Decoder for three phase signal Aug. 17, 2004
6429838 Correlation modulating apparatus Aug. 6, 2002
RE37547 Software-based resolver-to-digital converter Feb. 12, 2002
6172627 Dynamic digital to synchro converter Jan. 9, 2001
5926122 Electronic circuit and method for simulating mechanical quadrature encoders Jul. 20, 1999
5774082 Digital phase to digital sine and cosine amplitude translator Jun. 30, 1998
5644310 Integrated audio decoder system and method of operation Jul. 1, 1997
5451945 Multi-speed multi-phase resolver converter Sep. 19, 1995
5237324 System and method for producing baseband analog modulation signals Aug. 17, 1993
5173696 Control circuitry using electronic emulation of a synchro signal for accurate control of position and rate of rotation for shafts Dec. 22, 1992
5039987 Circuit for converting a phase signal to an amplitude signal Aug. 13, 1991
5007016 Fractal-type periodic temporal signal generator Apr. 9, 1991
4947167 Apparatus for generating synchro/resolver stimulus signals Aug. 7, 1990
4906909 Analog electronic control differential transmitter Mar. 6, 1990
4890057 Instrument with crossed-coil type movable magnet Dec. 26, 1989
4703307 Synchro/resolver shaft angle converter apparatus Oct. 27, 1987
4682149 High resolution pipelined digital-to-analog converter Jul. 21, 1987
4667138 Multiplexed synchro driver May. 19, 1987
4623831 Rotor position sensing apparatus for motors Nov. 18, 1986
4430640 Step data to synchro converter Feb. 7, 1984
4370642 Single non-linear converter ladder network having analog switches with digital control Jan. 25, 1983
4320391 Instrumentation devices using synchro-resolver drive circuitry Mar. 16, 1982
4216466 Digital to synchro converter Aug. 5, 1980
4160245 Apparatus for converting digital angular data into analog sine and cosine components Jul. 3, 1979
4157538 Correction circuit for a digital to synchro/resolver converter Jun. 5, 1979
4156234 Digital angle to resolver/synchro converter May. 22, 1979
4130875 Apparatus for reducing the scale factor variation for digital resolver type converters and the like Dec. 19, 1978
4097858 Digital to analog resolver converter Jun. 27, 1978
4072940 Digital to analog resolver converter Feb. 7, 1978
4070665 High accuracy digital to analog resolver converter Jan. 24, 1978

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