Method of, and apparatus for, recording audio signals using recording signals free of audio frequencies
US4849837A · kind A · utility
2Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1987 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Jul 27, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to record audio signals on a magnetic record carrier, there is produced a high frequency pulsed signal which contains the low frequency information pertinent to the audio signal. This high frequency pulsed signal is produced in a manner such as to be substantially free of any signal component which has a frequency lying in the frequency range of the low frequency audio signal. As a result, cross-talk produced during recording on a plurality of tracks can be substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.