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US 5,479,169 AGranted
Multiple neural network analog to digital converter for simultaneously processing multiple samples
AssigneeLouisiana Simchip Technologies, Inc.
InventorWieslaw Stryjewski
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Abstract
An improved analog-to digital converter employs multiple sample and hold circuits to simultaneously supply multiple neural network A/D converters with samples of an analog input voltage so that the neural networks may simultaneously perform conversion of the different samples into a lower-order portion of the digital signals. A single fast A/D converter converts each sample into a higher-order portion of each digital signal.
Claims14
A method for converting an analog input voltage into a digital signal comprising the steps of:
- providing a first output voltage approximately equal to the analog input voltage at a first point in time;
- converting the first output voltage into a higher-order portion of a first digital output signal with a first A/D converter circuit;
- converting the first output voltage into a lower-order portion of the first digital output signal with a first neural network A/D converter;
- providing, a second output voltage approximately equal to the analog input voltage at a second point in time while performing said step of converting the first output voltage into a lower-order portion of the first digital signal;
- converting the second output voltage into a higher-order portion of a second digital output signal with the first A/D converter circuit;
- converting the second output-voltage into a lower-order portion of the second digital output signal with a second neural network A/D converter;
- and
- repeating the preceding steps to provide a plurality of first and second digital output signals.
5 more elements
A circuit for converting an analog input voltage into a digital signal comprising:
- first and second sample and hold units for providing respective first and second output voltages approximately equal to the analog input voltage at respective first and second points in time;
- a first A/D converter means for converting the first and second output voltages into a higher-order portion of first and second digital output signals;
- and
- first and second neural network converter means for converting the first and second output voltages into a lower-order portion of the first and second digital output signals.
1 more element
Dependencies are inferred from the claim text.