Optical disc playback apparatus and method which utilizes single RAM for data decoding and TOC processing
US5467329A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Nov 9, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/65
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disc playback apparatus for playing back information such as music recorded on a compact disc (CD) and/or information such as data recorded on compact disc read only memory (CD-ROM) comprises: device for reading the information from the CD or the CD-ROM; device for decoding the CD-ROM data from the reading device; device for processing TOC information from the reading device; memory for storing CD TOC information when the CD is played back, and data to be used for decoding the information recorded on the CD-ROM when the CD-ROM is played back; and device for changing over between using the memory for storing the TOC information or using the memory as a data decoder for the CD-ROM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.