Method of recording odd and even words of one channel PCM signals in plural tracks
US4622598A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 27, 1984 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Jul 27, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10527
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Described is a method for PCM signal recording in which, when single-channel or multichannel PCM signals are recorded so that one-channel PCM signals are recorded in plural recording tracks, the input PCM signals of one channel are correspondingly distributed to the plural recording tracks with at least one word as a unit, and in which the distributed plural signals are subjected to an encoding operation independently of one another and are recorded on the plural recording tracks. In distributing the input PCM signals by word units, word groups consisting of a predetermined number of consecutive words are sequentially distributed to the recording tracks, or plural consecutive words equal in number to the number of recording tracks are distributed to the tracks. In encoding, the input words are separated as a function of whether the input word numbers are odd or even, and the words thus separated are subjected to time delaying or interleaving operations, after which the odd and even number words are synthesized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.