Width modulated magnetic recording
US4000512A · kind A · utility
12Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Dec 17, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1411
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a system for recording bits in elements along a moving magnetic medium wherein a first valued bit is represented by a pulse of a first width, length or duration, and a second valued bit is represented by a pulse of a second width, length or duration, there is included the improvement of changing either the first width or said second width when the bit to be recorded and the bit previously recorded have the same value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.