Patent EP0569245A2 successfully refreshed from Google Patents.
EP0569245A2
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EP
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Method of reading and processing information of recording disc and apparatus for reading and processing the same
Assignee: Pioneer Corp
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Filing: 1993-05-07
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Granted: —
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Expires: 2013-05-07
Abstract
Abstract Recording information is read from a plurality of recording discs (17, 17-1, 17-6), which include first recording discs having table of contents information and volume descriptor information, and an information process is performed by use of the recording information. The reading and processing method includes the steps of: reading and registering the table of contents information of the recording discs each time of injecting a power supply; reading and registering the volume descriptor information of the recording discs each time of injecting the power supply; comparing each of the registered table of contents information and each of new table of contents information, which is read at the time of re-injecting the power supply, at the time of re-injecting the power supply; and omitting the step of reading the volume descriptor information when the registered table of contents information and the new table of contents information are coincident with each other according to a comparison result of the comparing step, and performing the information process by use of the registered volume descriptor information.
Inventors
- 👤 Junichi C/O Pioneer Electronic Corp. Nishida
- 👤 Morio C/O Pioneer Electronic Corp. Araki
- 👤 Takeharu C/O Pioneer Electronic Corp. Arakawa
- 👤 Tessho c/o Pioneer Electronic Corp. Ishida
- 👤 Yasushiro c/o Pioneer Electronic Corp. Ayukai
- 👤 Toshiharu c/o Pioneer Electronic Corp. Baba
- 👤 Masahiko c/o Pioneer Electronic Corp. Sakaguchi
- 👤 Kenichi C/O Pioneer Electronic Corp. Nobe
- 👤 Michihiro c/o Pioneer Electronic Corp. Kaneko
- 👤 Jun c/o Pioneer Electronic Corp. Shinohara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 19:40
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/02; G11B19/10; G11B27/00; G11B27/002; G11B27/10; G11B27/34; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/213; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/90; G11B27/102; G11B27/105
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
174 words
A method of reading recording information from a plurality of recording discs (17, 17-1 to 17-6), which include first recording discs having table of contents information and volume descriptor information, and performing an information process by use of the recording information, characterized in that said method comprises the steps of: reading and registering the table of contents information of said recording discs each time of injecting a power supply; reading and registering the volume descriptor information of said recording discs each time of injecting the power supply; comparing each of the registered table of contents information and each of new table of contents information, which is read at the time of re-injecting the power supply, at the time of re-injecting the power supply; and omitting the step of reading the volume descriptor information when the registered table of contents information and the new table of contents information are coincident with each other according to a comparison result of the comparing step, and performing the information process by use of the registered volume descriptor information.
Claim 2
Dependent Claim
34 words
A method according to claim 1, characterized in that said first recording disc comprises at least one of a CD-ROM for storing map information and a CD-ROM XA for storing music accompaniment play information.
Claim 3
Dependent Claim
33 words
A method according to claim 1 or 2, characterized in that said plurality of recording discs include second recording discs having the table of contents information and not having the volume descriptor information.
Claim 4
Dependent Claim
71 words
A method according to claim 3, characterized in that said method further comprises the steps of: reading and registering the table of contents information of said second recording discs; judging whether each recording disc to be read is the first recording disc or the second recording disc; and omitting the step of reading the volume descriptor information when it is judged to be the second recording disc in the judging step.
Claim 5
Dependent Claim
28 words
A method according to claim 1, characterized in that said method further comprises the step of performing a display on the basis of the registered volume descriptor information.
Claim 6
Independent Claim
212 words
An apparatus for reading recording information from a plurality of recording discs (17, 17-1 to 17-6), which include first recording discs having table of contents information and volume descriptor information, and performing an information process by use of the recording information, characterized in that said apparatus comprises: means (16) for accommodating said plurality of recording discs; means (7, 18, 19, 20, 21) for reading the table of contents information and the volume descriptor information of said recording discs each time of injecting a power supply; means (4) for registering the read table of contents information and volume descriptor information each time of injecting the power supply; means (1) for comparing each of the registered table of contents information and each of new table of contents information, which is read at the time of re-injecting the power supply, at the time of re-injecting the power supply; and means (1) for controlling said reading means and said registering means to omit reading and registering the volume descriptor information when the registered table of contents information and the new table of contents information are coincident with each other according to a comparison result of the comparing means, and for performing the information process by use of the volume descriptor information registered in said registering means.
Claim 7
Dependent Claim
34 words
An apparatus according to claim 6, characterized in that said first recording disc comprises at least one of a CD-ROM for storing map information and a CD-ROM XA for storing music accompaniment play information.
Claim 8
Dependent Claim
37 words
An apparatus according to claim 6 or 7, characterized in that said plurality of recording discs (17, 17-1 to 17-6) include second recording discs having the table of contents information and not having the volume descriptor information.
Claim 9
Dependent Claim
62 words
An apparatus according to claim 8, characterized in that said controlling means (1) is adapted to judging whether each recording disc to be read is the first recording disc or the second recording disc, and control said reading means and said registering means to omit reading and registering the volume descriptor information when it is judged to be the second recording disc.
Claim 10
Independent Claim
35 words
An apparatus according to any one of claims 6 to 9, characterized in that said apparatus further comprises a display means (12) for performing a display on the basis of the registered volume descriptor information.
Claim 11
Independent Claim
23 words
An apparatus according to any one of claims 6 to 10, characterized in that said reading means (7) comprises a multi CD player.
Claim 12
Dependent Claim
40 words
An apparatus according to claim 11, characterized in that said accommodating means (16) comprises a magazine, which is adapted to exchange said plurality of recording discs so as to set one recording disc to be read by the reading means.
References Cited (Backward Citations)
No citation records indexed.
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