Analog-digital conversion circuit, timing signal generating...

Details Analog-digital conversion circuit, timing signal generating... Analog-digital conversion circuit, timing signal generating...

2011-08-16

2011-08-16

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S156000

Reexamination Certificate

active

07999716

ABSTRACT:
There are provided an analog-digital converter circuit capable of performing the same degree of operation as being performed at a high-frequency oscillation pulse using a low-frequency oscillation pulse without using the high-frequency oscillation pulse, a timing signal generating circuit generating a timing signal at the high frequency, and a control device using the circuits. In an analog-digital converter circuit, a periodic signal generating circuit allows the first to j-th pulse counting devices of the N pulse counting devices to count a count value X and allows the other pulse counting devices to count a count value X−1 in each sampling period by sequentially generating N serial periodic signals at a delay time interval of [approximate value of one period (T) of periodic signals]÷N. A digital signal generating circuit converts the analog signal to the digital signal.

REFERENCES:
patent: 5818797 (1998-10-01), Watanabe et al.
patent: 6411241 (2002-06-01), Taketoshi
patent: 7755530 (2010-07-01), Terazawa et al.
patent: 02-141029 (1990-05-01), None
patent: 2004-357030 (2004-12-01), None

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