Portable video tape recorder having a vibration detector

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Synchronizing moving-head moving-record recorders

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

360 60, 360 75, G11B 552, G11B 1502

Patent

active

046724753

ABSTRACT:
A portable video tape recorder includes a tachogenerator which generates an actual speed signal representative of the angular velocity of a video head and an actual phase signal representative of the angular position of the head. A frequency comparator generates a speed control signal representative of the deviation of the actual speed signal from a reference speed signal and a phase comparator generates a phase control signal representative of the deviation of the actual phase signal from a reference phase signal. The speed and phase control signals are summed and applied to the motor. A detector is provided for detecting when the deviation of the actual phase signal exceeds a predetermined level and generating a warning signal to alert the user either in visual or audible form to prevent external vibration from severely disturbing the angular position of the video head.

REFERENCES:
patent: 4325089 (1982-04-01), Hsu
patent: 4445145 (1984-04-01), Moriya
patent: 4573087 (1986-02-01), Tezuka et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Portable video tape recorder having a vibration detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable video tape recorder having a vibration detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable video tape recorder having a vibration detector will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1832948

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.