WO1988009994A1 - Lecteur de disques compacts - Google Patents

Lecteur de disques compacts Download PDF

Info

Publication number
WO1988009994A1
WO1988009994A1 PCT/EP1988/000489 EP8800489W WO8809994A1 WO 1988009994 A1 WO1988009994 A1 WO 1988009994A1 EP 8800489 W EP8800489 W EP 8800489W WO 8809994 A1 WO8809994 A1 WO 8809994A1
Authority
WO
WIPO (PCT)
Prior art keywords
compact disk
contents
disk
player
index
Prior art date
Application number
PCT/EP1988/000489
Other languages
German (de)
English (en)
Inventor
Dieter Baas
Original Assignee
Deutsche Thomson-Brandt Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Thomson-Brandt Gmbh filed Critical Deutsche Thomson-Brandt Gmbh
Priority to HU883922A priority Critical patent/HUT51787A/hu
Priority to KR1019890700216A priority patent/KR890702206A/ko
Publication of WO1988009994A1 publication Critical patent/WO1988009994A1/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G11B27/3063—Subcodes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/60—Solid state media
    • G11B2220/65—Solid state media wherein solid state memory is used for storing indexing information or metadata

Definitions

  • the invention relates to a CD player in which, after inserting a CD, the table of contents is read and partially or completely stored in a memory.
  • Each CD contains a table of contents in which data is stored, which provides information about the number of program blocks stored on the disc, their start times and the total playing time of the disc.
  • the individual program blocks are usually pieces of music, but it can also be spoken text or various background sounds for the setting of films or slides. Up to 99 program blocks can be stored on a CD disk, but only 10 to 20 different pieces of music are usually found on a CD disk with music.
  • the table of contents of a CD disk has the data format shown in the figure.
  • the first block AC contains the title of the first piece of music
  • the second block A1 the title of the last piece of music
  • the third block A2 shows the total playing time of the CD.
  • blocks D1 - Dn are the start times of the individual n-pieces of music that are recorded on the CD disk; the blocks A0, A1, A2, D1 - Dn are combined in a group in which the table of contents of the CD disk is once completely stored.
  • the entry track ES is followed by a pause PE, the duration of which is fixed at two to three seconds.
  • the individual program blocks follow the pause PE, for example, as in FIG. 2, four pieces of music B1, B2, B3 and B4.
  • the piece of music B4 the exit track AS follows.
  • the individual program blocks can be separated from one another by pauses, the duration of which is not standardized.
  • FIG. 2 there is a pause P1 between the first program block B1 and the second program block B2 and a pause P2 between the second program block B2 and the third program block B3, while the fourth program block B4 immediately follows the third program block 83.
  • the pause P1 is, for example, greater than the pause P2.
  • each program block is identified by a number by which the CD player recognizes which one.
  • Program block is currently scanning its scanner.
  • each program block is provided with at least one, but at most 99, indices, by which a program block can be divided into up to 99 parts of any length.
  • the indices of a program block run from 01 to 99, but from 00 to 99 if there is a pause between two program blocks. Index 00 is always assigned to a pause.
  • program block B 1 has only one index 01
  • program block B2 is divided by indices 01, 02 and 03 into three parts
  • program block B3 is divided into two parts by indices 01 and 02
  • program block B4 again only has an index 01.
  • the time which shows the playing time of the CD disk is stored in parallel.
  • the time is paid like a countdown aowarts. For this reason, the following four pieces of information are available to the CD player, whose light beam is scanning a point in a program block:
  • the possible division of a program block into up to 99 indices is particularly advantageous for longer musical works or literature works.
  • the CD maker can, for example, identify the solos - piano solos or solos of a particular singer -, the arias, the duets or the choirs using the indices.
  • literature works e.g. Identify monologues or dialogues of certain people using the indices.
  • the invention solves this problem in that, in the case of a partially or completely illegible table of contents, the scanning device of the CD player is moved to the end of the table of contents and the part of the CD disk following the table of contents can be played.
  • the invention is explained on the basis of a first exemplary embodiment. If the CD player determines that the table of contents of an inserted CD is illegible, its optical scanning device is positioned at the end of the table of contents. From here, the CD disk is scanned step by step. The numbers of the individual program blocks, ie the individual pieces of music, are obtained by the step-by-step scanning. Since the playing time is also stored on the CD in parallel to each piece of music, the CD player can win the starting times of all pieces of music and save them in a memory. If, for example, the scanning device in the musical piece No. 2 accidentally falls to the position 20 seconds after the beginning of the musical piece No. 2 during the step-by-step scanning, the CD player can determine the starting time from the playing time T of the musical piece No. 2 by forming the difference T-20s calculate and save the piece of music No. 2. In this way, the start times of all pieces of music are obtained.
  • the CD disk is not first scanned step by step, but playback is started immediately.
  • the numbers of the individual pieces of music and their start times are automatically obtained and saved during playback.
  • the second exemplary embodiment has the advantage that the listener can immediately hear the record without having to wait for the step-by-step scanning as in the first exemplary embodiment.
  • a third exemplary embodiment of the invention provides a choice between step-by-step scanning and immediate playback of the CD disk. If, for example, the listener calls up functions on the CD player for which data are still missing, the missing data is first obtained by step-by-step scanning.

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Des lecteurs de disques compacts lisent d'abord le sommaire d'un disque compact introduit pour lecture et l'enregistrent en partie ou en entier. Malgré le degré élevé de redondance de ces sommaires, il peut arriver qu'ils soient illisibles pour des lecteurs de disques compacts. Afin de permettre à un lecteur de disques compacts de fonctionner en dépit de l'illisibilité du sommaire, le dispositif d'exploration du lecteur de disques compacts cherche la fin du sommaire. La partie du disque compact qui suit le sommaire peut alors être reproduite. Les données du sommaire sont récupérées pendant la reproduction du disque compact ou pendant une exploration préalable par étapes.
PCT/EP1988/000489 1987-06-09 1988-06-01 Lecteur de disques compacts WO1988009994A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HU883922A HUT51787A (en) 1987-06-09 1988-06-01 Compact disc play-back device
KR1019890700216A KR890702206A (ko) 1987-06-09 1988-06-01 캠팩트 디스크 리더

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3719218.3 1987-06-09
DE19873719218 DE3719218A1 (de) 1987-06-09 1987-06-09 Cd-spieler

Publications (1)

Publication Number Publication Date
WO1988009994A1 true WO1988009994A1 (fr) 1988-12-15

Family

ID=6329332

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000489 WO1988009994A1 (fr) 1987-06-09 1988-06-01 Lecteur de disques compacts

Country Status (6)

Country Link
EP (1) EP0317594A1 (fr)
JP (1) JPH01503657A (fr)
KR (1) KR890702206A (fr)
DE (1) DE3719218A1 (fr)
HU (1) HUT51787A (fr)
WO (1) WO1988009994A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104041A1 (de) * 1991-02-09 1992-08-13 Thomson Brandt Gmbh Verfahren zum lesen von daten eines rotierenden aufzeichnungstraegers
US5414684A (en) * 1992-01-24 1995-05-09 Pioneer Electronic Corporation Method and apparatus for discriminating type of disks positioned on a CD player
DE19755741A1 (de) * 1997-12-16 1999-06-17 Thomson Brandt Gmbh CD-Spieler für CD-ähnliche Aufzeichnungsformate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151373A (en) * 1983-11-30 1985-07-17 Pioneer Electronic Corp Disc addressing system
EP0210006A2 (fr) * 1985-07-03 1987-01-28 Pioneer Electronic Corporation Méthode pour reproduire l'information enregistrée avec identificateurs de contenu
EP0215133A1 (fr) * 1985-03-29 1987-03-25 Sony Corporation Procede et appareil d'etablissement et d'enregistrement sur un disque optique du type ''postscript'' d'une liste de donnees enregistrees

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151373A (en) * 1983-11-30 1985-07-17 Pioneer Electronic Corp Disc addressing system
EP0215133A1 (fr) * 1985-03-29 1987-03-25 Sony Corporation Procede et appareil d'etablissement et d'enregistrement sur un disque optique du type ''postscript'' d'une liste de donnees enregistrees
EP0210006A2 (fr) * 1985-07-03 1987-01-28 Pioneer Electronic Corporation Méthode pour reproduire l'information enregistrée avec identificateurs de contenu

Also Published As

Publication number Publication date
KR890702206A (ko) 1989-12-23
DE3719218A1 (de) 1988-12-22
HUT51787A (en) 1990-05-28
EP0317594A1 (fr) 1989-05-31
JPH01503657A (ja) 1989-12-07

Similar Documents

Publication Publication Date Title
DE69034169T2 (de) Verfahren zum Zugriff auf eine mehrschichtige optische Platte
DE2944177C2 (fr)
DE69922284T2 (de) Vorrichtung und Verfahren zur Wiedergabe von Musik zusammen mit Taktschlaginformation
DE3884829T2 (de) Plattenaufzeichnung und/oder Wiedergabe.
DE3303489A1 (de) Digitales audio-plattensystem
DE69836718T2 (de) Audioinformationsaufzeichnungsmedium und -wiedergabegerät
DE69219187T2 (de) Informationswiedergabegerät mit verschiedenen Abtastungsmoden
DE3235511C2 (de) Vorrichtung zum Einstellen der Abspielzeit bei einem Plattenspieler
DE3934631A1 (de) Wiedergabevorrichtung fuer aufzeichnungen
WO1988009994A1 (fr) Lecteur de disques compacts
EP0309698B1 (fr) Lecteur-CD avec une mémoire
EP0570409B1 (fr) Procede de lecture des donnees enregistrees sur un support d'enregistrement en rotation
WO1993001596A1 (fr) Procede de raccourcissement du temps d'acces (circuit de regulation de la piste)
EP0322432B1 (fr) Lecteur de disques compacts
DE3807180A1 (de) Verfahren zum abspielen von platten
DE19881389B4 (de) Verfahren zum Abspielen eines Aufzeichnungsträgers
EP0275355B1 (fr) Lecteur de disques-CD
EP0309701B1 (fr) Lecteur-CD avec une mémoire
EP0696140A2 (fr) Procédé pour emmagasiner des informations supplémentaires, qui sont transmises ensemble avec un signal
DE3702693A1 (de) Cd-spieler
DE3940216A1 (de) Wiedergabeverfahren fuer aufgezeichnete information
US5197053A (en) Compact disk reader
DE19831567A1 (de) Aufzeichnungsvorrichtung und Aufzeichnungsverfahren
EP0570420B1 (fr) Appareil de reproduction
DE29604311U1 (de) Kommentierte Compact-Disc

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): HU JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1988904538

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1988904538

Country of ref document: EP

WWR Wipo information: refused in national office

Ref document number: 1988904538

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1988904538

Country of ref document: EP