EP0383530A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Information reproducing system
Assignee: Pioneer Corp
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Filing: 1990-02-13
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Granted: —
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Expires: 2010-02-13
Abstract
Abstract An information reproducing system plays back a group of recording mediums each having recording information to be reproduced and TOC information with respect to the recorded information, so that the recorded information of the recording mediums can be reproduced according to the TOC Information. The TOC information of the recording mediums before the recording mediums are palyed back, playback operation of the recording mediums is controlled based on the read TOC information. Since it is not necessary to read TOC information each time a recoridng medium is replaced or a group of recording medium is replaced, the recording mediums can smoothly be played back.
Inventors
- 👤 Naomi C/O Pioneer Electronic Corp. Amemiya
- 👤 Koji C/O Pioneer Electronic Corp. Yamagishi
- 👤 Kunio C/O Pioneer Electronic Corp. Matsumoto
- 👤 Naoki C/O Pioneer Electronic Corp. Masaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 04:53
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/002; G11B17/00; G11B17/22; G11B17/228; G11B27/10; G11B27/11; G11B27/34; G11B27/36; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/2587; G11B2220/60; G11B2220/65; G11B27/102; G11B27/105; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
187 words
An information reproducing system for playing back a group of recording mediums each having recorded information to be reproduced and TOC information with respect to the recorded information, so that the recorded information of the recording mediums can be reproduced according to the TOC information, said information reproducing system comprising: reading means for reading the TOC information of the recording mediums before the recording mediums are played back; and playback control means for controlling playback operation of the recording mediums based on the read TOC information , said playback control means conprising: TOC information storing means for storing the TOC information read by said reading means, with respect to the group of recording mediums; identification information generating means for generating identification information inherent in the group of recording mediums based on the TOC information; recording medium group checking means for checking the group of recording medium for identity based on said identification information; and reading means for reading registered TOC information corresponding to the group of recording mediums from the TOC information storing means based on the result of checking by said recording medium group checking means.
Claim 2
Dependent Claim
187 words
An information reproducing system for playing back a group of recording mediums each having recorded information to be reproduced and TOC information with respect to the recorded information, so that the recorded information of the recording mediums can be reproduced according to the TOC information, said information reproducing system comprising: reading means for reading the TOC information of the recording mediums before the recording mediums are played back; and playback control means for controlling playback operation of the recording mediums based on the read TOC information , said playback control means conprising: TOC information storing means for storing the TOC information read by said reading means, with respect to the group of recording mediums; identification information generating means for generating identification information inherent in the group of recording mediums based on the TOC information; recording medium group checking means for checking the group of recording medium for identity based on said identification information; and reading means for reading registered TOC information corresponding to the group of recording mediums from the TOC information storing means based on the result of checking by said recording medium group checking means.
Claim 3
Dependent Claim
57 words
An information reproducing system according to claim 1, wherein said TOC information storing means comprises a first RAM having a play area in which reproducing data including TOC information are stored and a second RAM having a current magazine memory area for storing playback control information including TOC information, which is being selected for reproducing desired information.
Claim 4
Dependent Claim
81 words
An information reproducing system according to claim 2, wherein said first RAM has a plurality of registering memory areas having the same structure as that of the current magazine memory area, and each of said play area, current magazine memory area and registering memory areas has a condition checking data area for checking conditions of said second RAM and reproducing process, magazine identification data, an output registering area for each of CDs, a TOC information registering area and a program area.
Claim 5
Dependent Claim
20 words
An information reproducing system according to claim 2, wherein said identification information generating means utilizes a part of TOC information.
Claim 6
Dependent Claim
72 words
An information reproducing system according to claim 4, wherein said identification information generating means utilizes, as magazine identification data, a starting music number FTNO, a last music number ETNO, a last music ending minute LMIN, a last music ending second LSEC, a last music ending frame LERAME, a music starting absolute frame for a music piece corresponding to FTNO, a music starting absolute minute for a music piece corresponding to (FTNO +1).
Claim 7
Dependent Claim
49 words
An information reproducing system according to claim 1, wherein said playback control means comprises an addition/change checking means for determining whether the loaded recording mediums include an added or changed recording medium and a data processing means for processing data as required by the added or changed recording medium.
References Cited (Backward Citations)
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