System for reducing amplitude digital-to-analog converter...

Details System for reducing amplitude digital-to-analog converter... System for reducing amplitude digital-to-analog converter...

2007-03-06

2007-03-06

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

Reexamination Certificate

active

11241141

ABSTRACT:
A system for reducing digital-to-analog converter (DAC) resolution for an amplitude modulated signal comprises a first logic configured to determine a desired DAC output voltage range, a second logic configured to select a DAC reference voltage level corresponding to the desired DAC output voltage range, a third logic configured to select a number of digital bits for conversion to the analog domain, the number of bits chosen from a larger number of digital bits, and a DAC configured to receive the selected DAC reference voltage level and convert the selected number of digital bits to a signal in the analog domain.

REFERENCES:
patent: 6504863 (2003-01-01), Hellmark
patent: 6980144 (2005-12-01), Maloberti et al.
patent: 7015845 (2006-03-01), Pugel

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