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Class Information
Number: 341/115
Name: Coded data generation or conversion > Phase or time of phase change > Synchro or resolver signal > Converter compensation
Description: Subject matter comprising means, inherent in the converter, for automatically correcting for undesired changes in the parameters controlling converter operation and means for determining or manually correcting or setting the operating conditions of the converter.

Patents under this class:
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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
8514110 Resolver digital converter Aug. 20, 2013
8471736 Automatic adjusting circuit and method for calibrating vernier time to digital converters Jun. 25, 2013
8466644 Motor driving circuit Jun. 18, 2013
8384570 Encoder interpolator with enhanced precision Feb. 26, 2013
8344918 Process for dithering a time to digital converter and circuits for performing said process Jan. 1, 2013
8315329 Low-rate feedback to enhance transmission using multi-rank beamforming Nov. 20, 2012
8134485 Device for converting analog signal into digital values and correcting the values Mar. 13, 2012
8004434 RD converter and angle detecting apparatus Aug. 23, 2011
7924959 Data conversion system Apr. 12, 2011
7605728 Method for calibrating a multi-bit digital-to-analog converter, multi-bit digital-to-analog converter in which this method is applied and converter provided with such a multi-bit digital-to-an Oct. 20, 2009
7549916 Cabin pressure control system and method that implements high-speed sampling and averaging techniques to compute cabin pressure rate of change Jun. 23, 2009
7538700 Angular position detector and rotary electric device drive unit including the same May. 26, 2009
7411530 Method for the evaluation of a first analog signal and a second analog signal, and evaluation circuit corresponding therewith Aug. 12, 2008
7401001 Position determining Jul. 15, 2008
7388527 Method of detecting abnormality of R/D converter Jun. 17, 2008
7382295 Control unit for electric power steering apparatus Jun. 3, 2008
7250881 Encoder output signal correction apparatus and method Jul. 31, 2007
7183952 Resolver Feb. 27, 2007
7109900 Encoder output signal correction apparatus and method Sep. 19, 2006
7061411 Device and method for enhancing resolution of digital encoder Jun. 13, 2006
7046176 Rotary encoder May. 16, 2006
7012397 Encoder and control apparatus for motor Mar. 14, 2006
6803863 Method and circuitry device for non-linear output displacement conversion with reference to signal speeds coming from displacement detector Oct. 12, 2004
6765563 Monolithic integrated circuit implemented in a digital display unit for generating digital data elements from an analog display signal received at high frequencies Jul. 20, 2004
6639529 System and method for delay calibration in position encoders Oct. 28, 2003
6563443 Method and device for absolute position determination May. 13, 2003
6556153 System and method for improving encoder resolution Apr. 29, 2003
6515600 Circuit arrangement for regenerating the black level of video signals Feb. 4, 2003
6445316 Universal impedance control for wide range loaded signals Sep. 3, 2002
6424276 Successive approximation algorithm-based architectures and systems Jul. 23, 2002
6407686 Waveform measuring apparatus Jun. 18, 2002
6404372 Asynchronous A/D converter with moving window Jun. 11, 2002
RE37547 Software-based resolver-to-digital converter Feb. 12, 2002
6339388 Mixed analog and digital integrated circuit and testing method thereof Jan. 15, 2002
6329936 Statistical adjustment of A/D non-linearities to correct intensity ARI Dec. 11, 2001
6317071 Method and apparatus for analog-to-digital conversion by combining digital sample values Nov. 13, 2001
6292117 Integrated adjustable current to voltage converter and digital quadrature generator in a printer paper positioning system Sep. 18, 2001
6215426 Offset correcting circuit for encoder Apr. 10, 2001
6157332 Self-calibrating video digital to analog converter Dec. 5, 2000
5922964 Amplitude detecting device Jul. 13, 1999
5912638 Direct resolver to digital converter Jun. 15, 1999
5786781 Encoder angle data computation method and computation apparatus Jul. 28, 1998
5760562 Apparatus and method for generating digital position signals for a rotatable shaft Jun. 2, 1998
5736951 High speed and high accuracy A/D converter Apr. 7, 1998
5710509 Phase difference detection device for an inductive position detector Jan. 20, 1998
5684719 Software-based resolver-to-digital converter Nov. 4, 1997
5677686 Absolute position detection apparatus and error compensation methods therefor Oct. 14, 1997
5646496 Apparatus and method for generating digital position signals for a rotatable shaft Jul. 8, 1997
5463393 Method and apparatus for correcting errors in an amplitude encoded signal Oct. 31, 1995

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