Coded data generation or conversion – Analog to digital conversion followed by digital to analog...
Patent
1992-04-09
1994-09-27
Hoff, Marc S.
Coded data generation or conversion
Analog to digital conversion followed by digital to analog...
341143, H03M 302
Patent
active
053510488
ABSTRACT:
A 1-bit high speed method for analog-to-digital and digital-to-analog conversion of an analog input signal of a given form is provided for accomplishing a more accurate digital-to-analog conversion of a digitized signal at a higher speed and over a wider frequency range at a comparable data rate to relatively lower speed and narrower frequency range conventional systems. The method comprises the steps of emphasizing the analog input signal to form a high frequency emphasized signal; processing the emphasized signal to form a 1-bit digital signal; and low pass filtering the digital signal to obtain an analog signal of a form substantially the same as the form of the analog input signal without use of a multi-bit dequantizer for digital-to-analog conversion. The invention also provides a novel 1-bit, high speed processing system for carrying out the foregoing method.
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