Predictive analog to digital converters and methods of using

Details Predictive analog to digital converters and methods of using Predictive analog to digital converters and methods of using

2008-07-29

2008-07-29

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07405689

ABSTRACT:
Methods and devices perform analog to digital signal conversion in shorter time and/or with less power consumption than that of a comparable analog to digital conversion that uses a conventional sequential approximation method based on a binary search. A predictive guess is supplied as a digital first signal. The digital first signal is converted (D/A) to a counterpart, analog guess signal. Fewer cycles and less power is consumed if the initial guess is within a certain range of the actual magnitude of the analog input sample signal. In one embodiment, a digital modeler is used to model a process underlying the analog input sample signal to thereby provide fairly good guesses.

REFERENCES:
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patent: 5870427 (1999-02-01), Tiedemann, Jr. et al.
patent: 6801146 (2004-10-01), Kernahan et al.
patent: 2006/0280249 (2006-12-01), Poon

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