Magnetic head moving velocity detector
US4510537A · kind A · utility
6Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | May 3, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detector for the moving velocity of a magnetic head of a magnetic disc memory device by electrically processing a position signal of the magnetic head, which includes a circuit for differentiating the position signal, means for rectifying the differentiating circuit, a circuit for sampling-hold of the rectified signal, a phase-shifter for delaying the position signal and means for generating a timing pulse signal to determine the timing for sampling, with the phase delaying characteristic of the transfer function of the differentiating circuit and the phase-shifting circuit being substantially coincided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.