Analog-to-digital converter (ADC)

Details Analog-to-digital converter (ADC) Analog-to-digital converter (ADC)

2007-03-27

2007-03-27

Barnie, Rexford (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

10937769

ABSTRACT:
The present invention shows a high speed ADC which can be implemented easily and with low cost into a pure digital integrated circuit. This is realized by converting the analog input voltage into a pulse signal and measuring the pulse signal in length with the help of a delay line and an edge detector. With an XOR gate the input pulse can be converted into two pulses of different lengths. With a special calculation circuitry the digital output value becomes independent of the reference frequency used.

REFERENCES:
patent: 5150121 (1992-09-01), Newell et al.
patent: 5287107 (1994-02-01), Gampell et al.
patent: 6101376 (2000-08-01), Bell
patent: 2002/0060638 (2002-05-01), Nishii et al.

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