Velocity detection circuit

Details Velocity detection circuit Velocity detection circuit

1995-12-08

1997-04-15

Epps, Georgia Y.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 47, 369 58, 369 60, 369 32, 369124, G11B 700

Patent

active

056217110

ABSTRACT:
A velocity detection circuit which detects the velocity of movement of an optical head. The velocity detection circuit includes an edge detection circuit for detecting an edge of a position detection signal and outputting an edge signal, a divider for dividing a clock signal of a predetermined period, a first binary counter and a first D-type flipflop for counting the number of pulses of the divided clock signal within an interval from an edge signal to a next edge signal to calculate time data, a second binary counter for counting the clock signal, a comparator for outputting, when the time data outputted from the first D-type flipflop and the data counted by the second binary counter coincide with each other, a pulse (reference signal) to be used to reset the count data of the second binary counter, and a third binary counter and a second D-type flipflop for counting the number of pulses of the comparison signal based on a sampling signal generated at fixed time intervals to calculate velocity data.

REFERENCES:
patent: 5177719 (1993-01-01), Yamada et al.
patent: 5191566 (1993-03-01), Yamaguchi et al.
patent: 5414689 (1995-05-01), Maeda et al.

Affiliated with

Also associated with

Rating

Velocity detection circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Velocity detection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Velocity detection circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-366861