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Class Information
Number: 341/153
Name: Coded data generation or conversion > Analog to or from digital conversion > Digital to analog conversion > Using weighted impedances
Description: Subject matter where the conversion utilizes a network comprising a series of impedances each of which has a value such that the current through it is representative of the value of a particular bit position of the digital input signal and a summing circuit for adding the currents flowing through the impedances to develop a signal representative of the digital input signal.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
RE31850 Solid state digital-to-analog converter Mar. 19, 1985
4484178 Digital-to-analog converter Nov. 20, 1984
4431987 Analog-to-digital and digital-to-analog converters and methods of operation Feb. 14, 1984
4381497 Digital-to-analog converter having open-loop voltage reference for regulating bit switch currents Apr. 26, 1983
4352093 High-speed digital/analog converter Sep. 28, 1982
4336528 Semiconductor resistive network Jun. 22, 1982
4331892 Monolithic integrated circuit for a digital-to-analog converter May. 25, 1982
4318085 Method and apparatus for conversion of signal information between analog and digital forms Mar. 2, 1982
4306225 Digital-to-analog converting apparatus Dec. 15, 1981
4195282 Charge redistribution circuits Mar. 25, 1980
4141004 Solid state digital to analog converter Feb. 20, 1979
4121205 Digital to analog converter with power amplification Oct. 17, 1978
4077035 Two-stage weighted capacitor circuit for analog-to-digital and digital-to-analog converters Feb. 28, 1978
4029949 Servo-controlled microscope stage Jun. 14, 1977
4020486 Solid state digital-to-analog converter Apr. 26, 1977
4017720 Four quadrant analog by digital multiplier Apr. 12, 1977
4017836 Event stacker and display device Apr. 12, 1977
4016555 Signal converter Apr. 5, 1977
3995304 D/A bit switch Nov. 30, 1976
3978473 Integrated-circuit digital-to-analog converter Aug. 31, 1976
3961326 Solid state digital to analog converter Jun. 1, 1976

1 2 3 4 5

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