Method of writing and reading digital data interspersed with analog audio frequency data on magnetic recording tape
US4888654A · kind A · utility
2Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1986 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Nov 28, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A plurality of audio messages are recorded on a multitrack tape. A digital location code is recorded on the first track followed by recording of a first audio message. The remaining tracks are recorded with digital location codes simultaneously with the recording of the first message. When a second message is to be recorded while the first message is still being recorded on the first track. Recording of the digital codes on the second track is stopped and the second audio message is recorded on the second track. When all the audio messages are recorded the tape motion is stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.