Record carrier, method of recording information on a record carrier, recording apparatus and playback device
AssigneeKoninklijke Philips Electronics N.V.
InventorErik C. Schylander
Life of this patent
Estimating the term…
Abstract
An information volume is recorded in sectors of a track of a record carrier in compliance with the CD-ROM XA standard. The information volume includes data files, control information for controlling the search for information in the recorded information volume, and a file location table with file location entries containing an identification and an address of the data files. The file location table has a size of at most one sector. This method of recording enables a relatively simple microprocessor to retrieve the recorded information, while maintaining compatibility with the CD-ROM XA standard.
Claims13
A record carrier, comprising:
- a substrate with tracks;
- and
- an information volume stored in the tracks in compliance with a standard, which information volume includes:
- directory files;
- data files not comprising the directory files;
- a path table, the path table and the directory files comprising control information for searching the data files;
- and
- a file location table with file location entries containing an identification and an address of the data files, wherein the information volume is divided in sectors, the file location table having a size of at most one sector.
A method comprising the steps of:
- providing a record carrier with tracks;
- recording files and tables in an information volume in the tracks of the record carrier in compliance with a standard, said files and tables comprising:
- directory files;
- data files not comprising the directory files;
- a path table, the path table and the directory files comprising control information for searching the data files;
- and
- a file location table with file location entries containing an identification and an address of the data files.
Recording apparatus comprising:
- means for receiving information including data files to be recorded on a record carrier, said data files not comprising directory files;
- recording means for recording the information in tracks of the record carrier;
- formatting means for composing an information volume in accordance with predetermined formatting instructions, in compliance with a standard, according to which instructions the information volume is provided with control information intended to be used for controlling the search for information in the information volume;
- control means for causing the recording means to record the information volume;
- and
- deriving means for deriving a file location table with file location entries which contain an identification of the data files;
- and in which the control means are for causing the file location table to be recorded in addition to the other information.
A playback device for reading a record carrier, said playback device comprising a processor arranged for processing a file location table of the record carrier, said record carrier comprising:
- a substrate with tracks;
- and
- an information volume stored in the tracks in compliance with a standard, which information volume includes:
- directory files;
- data files not comprising the directory files;
- a path table, the path table and the directory files comprising control information for searching the data files;
- and
- the file location table with file location entries containing an identification and an address of the data files.
A record carrier, comprising:
- a substrate with tracks;
- and
- an information volume stored in the tracks in compliance with a standard, which information volume includes:
- directory files;
- data files not comprising the directory files;
- a path table, the path table and the directory files comprising control information for searching the data files;
- and
- a file location table with file location entries containing an identification and an address of the data files, wherein the distance between two succeeding file location entries is stored in an entry of the file location table.
Dependencies are inferred from the claim text.