Method for precompensating signals for magnetic media noise
US5959794A · kind A · utility
18Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1996 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Oct 25, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is disclosed for determining the remanent noise in a magnetic medium by DC saturation of a region thereof and measurement of the remaining DC magnetization. Conventional recording transducers may be used to determine the remanent noise. Upon determination, the remanent noise may then be compensated for in either or both of the record and playback modes for all varieties of magnetic media including, videotapes, cassette tapes, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.