PCM Tape recording and reproducing apparatus having a dropout-immune data recording format
US4539605A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1982 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Sep 9, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1809
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A PCM tape recording and reproducing apparatus for recording and reproducing an audio signal by using multitrack heads, comprises a frame interleaving device with a high dropout immunity function. The frame interleaving device comprises a distributor for successively distributing continuous interleaved input data between tracks, wihtin a multiplicity of tracks formed by splitting a magnetic tape, at a spacing of at least one track so that said continuous interleaved input data will not be shared between two continuous tracks in the same recording and reproducing direction, a data framing circuit for forming a frame out of data to be distributed to each of said tracks and for applying said frame with a synchronization signal at the top of said frame and with an error detection code at the end of said frame, and a delay circuit for delaying data associated with a track by one frame or more with respect to data associated with a neighboring track in the same recording and reproducing as said track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.