US 5,596,565 A · Method and apparatus for recording MPEG-compressed video data and compressed audio data on a disk

Abstract

Method and apparatus for recording MPEG-compressed video data and compressed audio data on an optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm.+-.0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and exhibiting a track pitch in the range between 0.646 .mu.m and 1.05 .mu.m; with the tracks being divided into a lead-in area, a program area and a lead-out area. The data includes table of contents (TOC) information recorded in a plurality of sectors in at least one TOC track and user information recorded in a plurality of sectors in user tracks. The user information is comprised of MPEG-compressed video data, which may exhibit any one of difference MPEG formats, and compressed audio data, which likewise may exhibit an MPEG format, a PCM format or the like. The TOC information includes addresses of start sectors recorded in the user tracks. The data is encoded in a long distance error correction code having at least eight parity symbols.

Claims74

Dependent claims

A method of recording data on an optical disk having a diameter less than 140 mm, a thickness of 1.2 mm.+-.0.1 mm and a recording area divided into a lead-in area, a program area and a lead-out area, said method comprising the steps of:

providing user information including MPEG-compressed video data and compressed audio data for recording in a plurality of sectors in user tracks;
providing table of contents (TOC) information for recording in a plurality of sectors in at least one TOC track, said TOC information including addresses of respective start sectors, each identifying a start sector of a respective user track;
encoding both said user information including MPEG-compressed video data and compressed audio data and said TOC information in a long distance error correction code having at least eight parity symbols;
modulating the encoded user and TOC information;
recording the modulated, encoded TOC information as embossed pits in said at least one TOC track in said lead-in area;
and recording the modulated, encoded user information as embossed pits in said user tracks in said program area with a track pitch in the range between 0.646 .mu.m and 1.05 .mu.m.

3 more elements

Apparatus for recording data on an optical disk having a diameter less than 140 mm, a thickness of 1.2 mm.+-.0.1 mm and a recording area divided into a lead-in area, a program area and a lead-out area, said apparatus comprising:

input means for providing user information including MPEG-compressed video data and compressed audio data for recording in a plurality of sectors in user tracks and table of contents (TOC) information for recording in a plurality of sectors in at least one TOC track, said TOC information including addresses of respective start sectors, each identifying a start sector of a respective user track;
encoding means for encoding both said user information including MPEG-compressed video data and compressed audio data and said TOC information in a long distance error correction code having at least eight parity symbols;
modulator means for modulating the encoded user and TOC information;
and recording means for recording the modulated, encoded TOC information as embossed pits in said at least one TOC track in said lead-in area and for recording the modulated, encoded user information as embossed pits in said user tracks in said program area with a track pitch in the range between 0.646 .mu.m and 1.05 .mu.m.

1 more element

Dependencies are inferred from the claim text.

Method and apparatus for recording MPEG-compressed video data and compressed audio data on a disk

Life of this patent

Method and apparatus for recording MPEG-compressed video data and compressed audio data on a disk

Life of this patent

Abstract

Claims74