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Class Information
Number: 341/128
Name: Coded data generation or conversion > Analog to or from digital conversion > Bipolar > Dual slope analog to digital converter
Description: Subject matter where the input analog signal is integrated for a fixed time interval following which there is a linear return of the integrated signal to a reference level by means of an applied signal; the order of application of the two signals may be reversed.

Patents under this class:

Patent Number Title Of Patent Date Issued
8643517 Gradient-based approach to sample-time mismatch error calibration in a two-channel time-interleaved analog-to-digital converter Feb. 4, 2014
8442171 Digital correction of analog polyphase filters May. 14, 2013
7746521 Analog-to-digital conversion in CMOS image sensor Jun. 29, 2010
7733250 Microcontroller having in-situ autocalibrated integrating analog-to-digital converter (IADC) Jun. 8, 2010
7702488 Measuring device for capacitive pressure measure Apr. 20, 2010
7414553 Microcontroller having in-situ autocalibrated integrating analog-to-digital converter (IADC) Aug. 19, 2008
7379011 Lossless nonlinear analog gain controller in image sensor and manufacturing method thereof May. 27, 2008
7030796 Analog-to-digital converting apparatus for processing a plurality of analog input signals at high rate and display device using the same Apr. 18, 2006
6825789 Dual path analog-to-digital conversion method and system Nov. 30, 2004
6784823 Rail to rail dual slope ADC Aug. 31, 2004
6778125 Dual path analog-to-digital conversion method and system Aug. 17, 2004
6762705 Controlled drive circuit for an analog driven power semiconductor Jul. 13, 2004
6646586 Dual-slope analog-to-digital converter and comparison circuit Nov. 11, 2003
6636575 Cascading PLL units for achieving rapid synchronization between digital communications systems Oct. 21, 2003
6492929 Analogue to digital converter and method of analogue to digital conversion with non-uniform sampling Dec. 10, 2002
6448918 Digital/analog converter Sep. 10, 2002
6384760 Analog-to-digital converter May. 7, 2002
6285310 Integrating analog/digital converter Sep. 4, 2001
5831568 Process for the analog/digital conversion of an electric signal and device for implementing it Nov. 3, 1998
5781142 Method and apparatus for converting an analog measurement signal to a digital signal having reduced conversion error Jul. 14, 1998
5579194 Motor starter with dual-slope integrator Nov. 26, 1996
5546082 Measurement probe with improved analog-to-digital conversion Aug. 13, 1996
5229772 Ratiometric ADC with pulse width modulated output for wide temperature range applications Jul. 20, 1993
5229771 Analog to digital converter for converting multiple analog input signals to corresponding digital output signals during one conversion cycle Jul. 20, 1993
5184128 Integrating A/D converter with means for reducing rollover error Feb. 2, 1993
5099239 Multi-channel analogue to digital convertor Mar. 24, 1992
4939520 Analog to digital converter using an integrator having a partially controlled output signal Jul. 3, 1990
4908623 Apparatus and method for range control and supply voltage compensation in a dual slope analog to digital converter Mar. 13, 1990
4891644 Device for determining pick-up head tracking error in a digital tape player Jan. 2, 1990
4857933 Analogue to digital converter of the multi-slope type Aug. 15, 1989
4855743 Analog interface system Aug. 8, 1989
4851838 Single chip successive approximation analog-to-digital converter with trimmable and controllable digital-to-analog converter Jul. 25, 1989
4851839 Dual-slope analog-to-digital converter with voltage to current converter Jul. 25, 1989
4847620 Clock-controlled voltage-to-frequency converter Jul. 11, 1989
4829299 Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading May. 9, 1989
4584566 Analog to digital converter Apr. 22, 1986
4445111 Bi-polar electronic signal converters with single polarity accurate reference source Apr. 24, 1984
4404545 Analog-to-digital converter of the dual slope type Sep. 13, 1983
4339958 Analog-to-digital converter for electromagnetic flowmeter Jul. 20, 1982
4229730 Modified dual-slope analog to digital converter Oct. 21, 1980
4151516 PCM coder with shifting idle channel noise level Apr. 24, 1979
4082998 Dual slope integration circuit Apr. 4, 1978
4074257 Auto-polarity dual ramp analog to digital converter Feb. 14, 1978
4050065 Dual slope analog to digital converter with delay compensation Sep. 20, 1977
3987435 Analog-to-digital converter utilizing time reference for effecting conversion Oct. 19, 1976
3967270 Analog-to-digital converter Jun. 29, 1976
3958236 Offset control in autozeroing circuits for analog-to-digital converters May. 18, 1976
3942173 Offset error compensation for integrating analog-to-digital converter Mar. 2, 1976

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