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1. WO2000041178 - METHOD AND DEVICE FOR RECORDING REAL-TIME INFORMATION

Publication Number WO/2000/041178
Publication Date 13.07.2000
International Application No. PCT/EP1999/010307
International Filing Date 21.12.1999
IPC
G11B 20/00 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
20Signal processing not specific to the method of recording or reproducing; Circuits therefor
G11B 20/12 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
20Signal processing not specific to the method of recording or reproducing; Circuits therefor
10Digital recording or reproducing
12Formatting, e.g. arrangement of data block or words on the record carriers
G11B 27/10 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
27Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
10Indexing; Addressing; Timing or synchronising; Measuring tape travel
G11B 27/11 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
27Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
10Indexing; Addressing; Timing or synchronising; Measuring tape travel
11by using information not detectable on the record carrier
G11B 27/32 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
27Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
10Indexing; Addressing; Timing or synchronising; Measuring tape travel
19by using information detectable on the record carrier
28by using information signals recorded by the same method as the main recording
32on separate auxiliary tracks of the same or an auxiliary record carrier
H03M 7/30 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
7Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
CPC
G11B 20/00007
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
20Signal processing not specific to the method of recording or reproducing; Circuits therefor
00007Time or data compression or expansion
G11B 2020/10592
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
20Signal processing not specific to the method of recording or reproducing; Circuits therefor
10Digital recording or reproducing
10527Audio or video recording; Data buffering arrangements
10537Audio or video recording
10592specifically adapted for recording or reproducing multichannel signals
G11B 2220/216
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
2220Record carriers by type
20Disc-shaped record carriers
21characterised in that the disc is of read-only, rewritable, or recordable type
215Recordable discs
216Rewritable discs
G11B 2220/218
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
2220Record carriers by type
20Disc-shaped record carriers
21characterised in that the disc is of read-only, rewritable, or recordable type
215Recordable discs
218Write-once discs
G11B 2220/2545
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
2220Record carriers by type
20Disc-shaped record carriers
25characterised in that the disc is based on a specific recording technology
2537Optical discs
2545CDs
G11B 2220/2562
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
2220Record carriers by type
20Disc-shaped record carriers
25characterised in that the disc is based on a specific recording technology
2537Optical discs
2562DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL
Inventors
  • VAN NIEUWENHOVEN, Marcel, S., E.; NL
Agents
  • RIEM, Charles, H.; Internationaal Octrooibureau B.V. Prof. Holstlaan 6 NL-5656 AA Eindhoven, NL
Priority Data
99200040.608.01.1999EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND DEVICE FOR RECORDING REAL-TIME INFORMATION
(FR) PROCEDE ET DISPOSITIF D'ENREGISTREMENT D'INFORMATIONS EN TEMPS REEL
Abstract
(EN)
In a method of recording real-time information on an information carrier, e.g. audio on an optical disc, the real-time information is compressed to units comprising a variable amount of compressed data, and playback parameters are determined in dependence of the compressed data. The playback parameters comprise an access list (Main_Acc_List) having entries, each subsequent entry being assigned to a subsequent interval of a fixed playback time and comprising a pointer (Entry[N]) to a unit within said interval. In a player the real-time information may be accessed at a selected point of playing time. The corresponding entry in the access list is determined by dividing the selected time by the interval. The entry provides the pointer (Entry[N]) to the unit corresponding to the selected playing time. Interpolation may be used for calculating an address at a selected playing time within an interval, and the accuracy may be improved by a margin parameter (Access_Flags[N]), which indicates the maximum distance between the unit of the selected playing time and the interpolated address.
(FR)
Dans un procédé d'enregistrement d'informations en temps réel sur un support d'informations tel qu'un enregistrement audio sur un disque optique, les informations en temps réel sont comprimées en unités comprenant une quantité variable de données comprimées, et des paramètres de lecture sont déterminés en fonction de ces données comprimées. Les paramètres de lecture comprennent une liste d'accès (Main_Acc_list) possédant des entrées, chaque entrée suivante étant affectée à un intervalle suivant le temps de lecture fixé et comprenant un pointeur (Entry[N]) indiquant une unité dans cet intervalle. Pour un joueur, il est possible d'accéder aux informations en temps réel à un point sélectionné de la durée de jeu. On détermine l'entrée correspondante de la liste d'accès en divisant la durée sélectionnée par l'intervalle. L'entrée permet au pointeur (Entry[N]) d'indiquer l'unité correspondant à la durée de jeu sélectionnée. Il est possible d'utiliser une interpolation pour calculer une adresse dans un intervalle à une durée de jeu sélectionnée, et d'améliorer la précision par un paramètre de marge (Access_Flag[N]) qui indique la distance maximale entre l'unité de la durée de jeu sélectionnée et l'adresse interpolée.
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