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Class Information
Number: 341/112
Name: Coded data generation or conversion > Phase or time of phase change > Synchro or resolver signal
Description: Subject matter including a motorlike device having a stator and a rotor which transforms an angular-position input into variable phase output or vice versa, or a simulation thereof.










Sub-classes under this class:

Class Number Class Name Patents
341/116 Analog resolver or synchro signal to digital signal 189
341/113 Coarse and fine 16
341/114 Control system 34
341/115 Converter compensation 70
341/117 Digital signal to analog resolver or synchro signal 82


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8674632 Motor control device with a correcting unit determining a corrected rotation angle after a predetermined time from a detection time, control program therefor, and method for the control Mar. 18, 2014
8514111 Hybrid digital-to-synchro converter unit Aug. 20, 2013
8384570 Encoder interpolator with enhanced precision Feb. 26, 2013
8274414 Signal amplitude adjustment to improve resolver-to-digital converter performance Sep. 25, 2012
8228217 Filter for the suppression of noise in resolver-to-digital converters Jul. 24, 2012
8159173 Control device for controlling travel motor of vehicle Apr. 17, 2012
8004276 Reference signal generation circuit, angle converter, and angle detection apparatus Aug. 23, 2011
7864075 Rotary electrostatic encoder Jan. 4, 2011
7817070 Method and apparatus for sampling and converting a signal Oct. 19, 2010
7773008 Method and apparatus for sampling and converting a signal Aug. 10, 2010
7663520 A/D conversion apparatus Feb. 16, 2010
7538700 Angular position detector and rotary electric device drive unit including the same May. 26, 2009
7456603 Phase detection circuit, resolver/digital converter using the circuit, and control system using the converter Nov. 25, 2008
7432836 Multiplexed signal conditioner Oct. 7, 2008
7417571 Method for providing a correlation Aug. 26, 2008
7388528 Coding method and device for determining absolute angular position Jun. 17, 2008
7382295 Control unit for electric power steering apparatus Jun. 3, 2008
7352304 Interpolation apparatus in encoder Apr. 1, 2008
7348897 Apparatus for transmitting position detection signal of multi-shaft motor Mar. 25, 2008
7268710 Logic device for the transformation of the output of the RDC into series A-B pulses Sep. 11, 2007
7263452 Resolver-to-digital converting apparatus, method and program Aug. 28, 2007
7245243 Lateral double-diffused MOS transistor and manufacturing method therefor Jul. 17, 2007
7183952 Resolver Feb. 27, 2007
7176913 Drive circuit for flat display apparatus and flat display apparatus Feb. 13, 2007
7123175 Angle detection apparatus computing phase differences between first and second phase angles Oct. 17, 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
7068191 Method for determining the numerical value for the duration of a periodically repeated pulse signal, and device for carrying out said method Jun. 27, 2006
7064692 Solid-state synchro/resolver converter Jun. 20, 2006
7015840 Resolver/digital converter Mar. 21, 2006
6996482 Device and method for determining the position of a rotor Feb. 7, 2006
6972700 Resolver/digital converter and control apparatus using the same Dec. 6, 2005
6925401 Method and apparatus for correcting resolver output Aug. 2, 2005
6861966 Method for providing a digital current fluctuation signal Mar. 1, 2005
6661359 Device and method for generating synchronous numeric signals Dec. 9, 2003
6472841 Low cost redundant resolver system Oct. 29, 2002
RE37547 Software-based resolver-to-digital converter Feb. 12, 2002
6331759 Pulse drive angle measurement system and method Dec. 18, 2001
6278388 Method of converting an analog signal to digital signal by digitalizing error deviation Aug. 21, 2001
6226562 Method and system for adjusting and calibrating circuit parameters May. 1, 2001
6104328 Resolver to 360.degree. linear analog converter and method Aug. 15, 2000
6069576 Synchro-to-digital converter May. 30, 2000
5999113 Interpolation circuit for encoder having a look-up table memory with reduced capacity Dec. 7, 1999
5684719 Software-based resolver-to-digital converter Nov. 4, 1997
5574450 Synchronization adder circuit Nov. 12, 1996
5557273 Magnetic azimuth detector to digital (MAD) converter Sep. 17, 1996
5347277 Dual phase resolver to digital converter Sep. 13, 1994
5160886 Permanent magnet resolver for producing a resolver-to-digital converter compatible output Nov. 3, 1992
5134404 Quadrature error correction Jul. 28, 1992
5072179 High resolution one and two dimensional position indicating apparatus with plural windings having a common connection and separately energized by signals of different phase Dec. 10, 1991
5034743 AC encoded signal to digital converter Jul. 23, 1991

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