Magnetic recording and reproducing method using phase discrimination and apparatus therefor
US5467232A · kind A · utility
4Cited by
5References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 24, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Mar 24, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10009
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a phase discrimination signal processing system in the signal reproduction of a magnetic recording and reproducing apparatus, instead of differentiation of a reproduced signal, amplitude discrimination automatic equalization is effected for an isolated waveform at a phase discrimination point corresponding to an isolated magnetization reversal reproduced by a magnetic head such that an amplitude at each discrimination time other than a peak point is zero to effect phase discrimination of the signal waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.