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Class Information
Number: 341/168
Name: Coded data generation or conversion > Analog to or from digital conversion > Analog to digital conversion > Intermediate conversion to time interval > Plural slope
Description: Subject matter wherein the input analog signal is integrated for a fixed time interval following which there is a nonlinear return to the datum level by means of applied plural reference signals or by changing the frequency of a clock signal which is being counted.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6717393 |
System for difference calculation using a quad slope converter |
Apr. 6, 2004 |
| 6646576 |
System and method for processing data |
Nov. 11, 2003 |
| 6433713 |
Calibration of analog-to-digital converters |
Aug. 13, 2002 |
| 6384760 |
Analog-to-digital converter |
May. 7, 2002 |
| 6285310 |
Integrating analog/digital converter |
Sep. 4, 2001 |
| 5870078 |
Reduced cost pointing stick circuit |
Feb. 9, 1999 |
| 5614902 |
Ratiometric analog to digital converter with automatic offset |
Mar. 25, 1997 |
| 5565869 |
Multiple slope analog-to-digital converter having increased linearity |
Oct. 15, 1996 |
| RE34899 |
Analog to digital conversion with charge balanced voltage to frequency converter having polarity responsive offset |
Apr. 11, 1995 |
| 5327137 |
Multiple ramp procedure with higher order noise shaping |
Jul. 5, 1994 |
| 5321403 |
Multiple slope analog-to-digital converter |
Jun. 14, 1994 |
| 5289187 |
Method and means for converting an analog signal into a digital signal |
Feb. 22, 1994 |
| 5216426 |
Integrating ADC having memory capacitor connected to integrator output and one comparator input and voltage divider connected to integrator output and the other comparator input |
Jun. 1, 1993 |
| 5200752 |
Integrating analog to digital converter run-up method and system |
Apr. 6, 1993 |
| 5148171 |
Multislope continuously integrating analog to digital converter |
Sep. 15, 1992 |
| 5101206 |
Integrating analog to digital converter |
Mar. 31, 1992 |
| 5066955 |
Analog to digital converters with convergence accelerating signals |
Nov. 19, 1991 |
| 5019817 |
Analogue-to-digital converter |
May. 28, 1991 |
| 5012247 |
Switched-capacitor analog-to-digital converter with autocalibration |
Apr. 30, 1991 |
| 4983972 |
Video delta modulation encoder |
Jan. 8, 1991 |
| 4942401 |
Analog to digital conversion with charge balanced voltage to frequency converter having polarity responsive offset |
Jul. 17, 1990 |
| 4906996 |
Analog-to-digital converter with offset voltage polarity inversion |
Mar. 6, 1990 |
| 4857933 |
Analogue to digital converter of the multi-slope type |
Aug. 15, 1989 |
| 4851843 |
Analogue-to-digital conversion apparatus |
Jul. 25, 1989 |
| 4574271 |
Multi-slope analog-to-digital converter |
Mar. 4, 1986 |
| 4567465 |
Method and apparatus for converting analog signal into digital signal |
Jan. 28, 1986 |
| 4559521 |
Calibration of a multi-slope A-D converter |
Dec. 17, 1985 |
| 4556867 |
Dual rate, integrating, analog-to-digital converter |
Dec. 3, 1985 |
| 4395701 |
High speed integrating analog-to-digital converter |
Jul. 26, 1983 |
| 4361831 |
Analog-digital converter utilizing multiple ramp integrating techniques |
Nov. 30, 1982 |
| 4354176 |
A-D Converter with fine resolution |
Oct. 12, 1982 |
| 4268820 |
Integrating type analog-to-digital converter |
May. 19, 1981 |
| 4243975 |
Analog-to-digital converter |
Jan. 6, 1981 |
| 4204197 |
Digital scale |
May. 20, 1980 |
| 4045658 |
Digitized linearizing correction apparatus with frequency modulation |
Aug. 30, 1977 |
| 4008405 |
Motion detection circuit for electronic weighing system |
Feb. 15, 1977 |
| 3995265 |
Analogue divider with digital output for spectrophotometry |
Nov. 30, 1976 |
| RE28833 |
Analogue to digital converter |
May. 25, 1976 |
| RE28706 |
Triple-slope analog-to-digital converters |
Feb. 3, 1976 |
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