Data block format for software carrier and player therefor
US5463565A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1993 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Oct 29, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91321
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk format for representing several synchronized signals, e.g., multiple versions of motion pictures and multiple soundtracks. All signals are represented digitally, and the bits are arranged in data blocks. Each data block may contain a variable number of bits for each signal, ranging from none to many (relative to the other signals). This allows each signal to be represented by a variable rate bit stream, without one signal necessarily constraining another as far as bit representation is concerned. Multiple buffers are provided to insure that there are a sufficient number of bits available for each signal as required for immediate needs. When any buffer is full, reading of the data blocks stops temporarily so that no bits are lost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.