Time counting circuit and pulse signal generating method

Details Time counting circuit and pulse signal generating method Time counting circuit and pulse signal generating method

1997-03-04

1999-12-07

Wambach, Margaret R.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

327161, 327295, G01D 300

Patent

active

059995866

ABSTRACT:
There is provided a small-size time counting circuit which measures time with high accuracy and low power consumption. Around a differential inverter ring composed of an odd number of differential inverters of identical structure connected in a ring configuration, signal transition is caused to circulate by oscillation. A first signal group is composed of normal output signals from the odd-numbered differential inverters and inverted output signals from the even-numbered differential inverters, which rise and fall sequentially at equal time intervals corresponding to delay times in the individual differential inverters. A second signal group is composed of inverted output signals from the odd-numbered differential inverters and normal output signals from the even-numbered differential inverters, which similarly rise and fall sequentially at equal time intervals. Accordingly, even when the rise time of an output signal from each of the differential inverters composing the differential inverter ring is different from the fall time thereof, the use of the first and second signal groups provides equal increments of time for time measurement.

REFERENCES:
patent: 5812626 (1998-09-01), Kusumoto et al.
patent: 5828717 (1998-10-01), Kusumoto et al.
patent: 5835552 (1998-11-01), Kusumoto et al.
Takamoto Wtanabe et al. "A Time-to-Digital Converter LSI" The Institute Of Electronics Information And Communication Engineers, Technical Report Of IEICE, Aug., 1993, pp. 37-43.

Affiliated with

Also associated with

Rating

Time counting circuit and pulse signal generating method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time counting circuit and pulse signal generating method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time counting circuit and pulse signal generating method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-832678