Pulse generator in storage drives

Details Pulse generator in storage drives Pulse generator in storage drives

1983-09-02

1987-03-17

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

307264, 324173, G11B 5012

Patent

active

046512411

ABSTRACT:
Device for a drive for storage media for the generation of at least one index pulse per revolution of a rotating element with a generator, which, during operation, for each revolution of the rotating component, generates at least one signal pulse that alternates once between two polarities, and with an evaluating circuit activated by these alternating signal pulses to generate the index pulses at its output. The evaluating circuit includes a comparator with asymmetrical hysteresis with two inputs and one output, between the two inputs of which comparator the output signal of the generator lies, and the hysteresis of which is tuned to the generator output signal such that the comparator output sharply changes from a first to a second potential when the amplitude of the signal pulse at a preset polarity exceeds a preset switching voltage value, and sharply returns from the second to the first potential when the signal pulse passes through its zero crossing from the preset to the opposite polarity.

REFERENCES:
patent: 4169232 (1979-09-01), Henrich
patent: 4216512 (1980-08-01), Vidwans

Affiliated with

Also associated with

Rating

Pulse generator in storage drives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulse generator in storage drives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulse generator in storage drives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1791754