US 5,634,031 A · Optical disk system having table-of-contents information data

Abstract

To provide an optical disk recorder capable of reading data currently recorded even if the power supply is turned off during the recording of record data in a system using an optical disk in which table-of-contents information is not recorded in an area other than a user's recording area for recording record data and recording and reproducing of data is controlled according to the table-of-contents information. The optical disk recorder comprises an optical disk constituted so that table-of-contents information is written in an area other than a user's recording area for recording record data, a storage circuit constituted so that data can be read out of or written into the circuit by extending or compressing regenerated or recorded data in order to reproduce or record data from or into the optical disk, and a system controller for controlling reproducing and/or recording of data from and/or into the optical disk and storage circuit, and writes table-of-contents information in an area other than the user's recording area of the optical disk in accordance with a decided command for deciding the table-of-contents information given to the system controller, while recording record data in the user's recording area of the optical disk.

Claims20

Dependent claims

An optical disk system comprising:

disk means having a user recording area and a user table-of-contents area;
input means for inputting at least one of a block record data, table-of-contents information data, a command;
recording-reproducing means for recording/reproducing said block record data and table-of-contents information data received from said input means;
storage means for storing said block record data and said table-of-contents information data;
and
system control means for controlling the writing-reading of said table-of-contents information data into and out of the storage means, and the recording-reproducing of said data onto and from said disk means,
said recording including the recording of said table-of-contents information data onto the user table-of-contents area of said disk means after the system control means receives said command by said input means while the system control means is controlling the writing of said block record data and the said table-of-contents information data into the storage means.

4 more elements

An optical disk system comprising:

disk means having a user recording area and a user table-of-contents area;
input means for inputting at least one of a block record data, a table-of-contents information data, a command;
recording-reproducing means for recording-reproducing said block record data and said table-of-contents information data received from said input means;
storage means for storing said block record data and said table-of-contents information data;
and
system control means for controlling the writing-reading of said table-of-contents information data into and out of the storage means, and the recording-reproducing of said data onto and from said disk means,
said recording including the recording of a temporary table-of-contents information data onto the user table-of-contents area of the disk means before said recording-reproducing means records the block record data onto the recording area of the disk means or the system control means receives the command produced by the input means.

4 more elements

Dependencies are inferred from the claim text.

Optical disk system having table-of-contents information data

Life of this patent

Optical disk system having table-of-contents information data

Life of this patent

Abstract

Claims20