Tape guide system with temperature compensation for drive signal
US5224643A · kind A · utility
15Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S242/909
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a tape guide system having a tape guide device for guiding a magnetic tape in a video tape recorder or the like and which comprises a tape guide and an ultrasonic vibrator fixed to the tape guide for vibrating the tape guide with a standing wave, a drive device supplies a drive signal to the ultrasonic vibrator, and a temperature compensating circuit is provided for effecting temperature compensation of the drive signal supplied from the driver device to the ultrasonic vibrator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.