US 5,856,958 AGranted

Recording medium, recording apparatus, reproducing method, and reproducing apparatus

AssigneeSony Corporation

InventorsTeppei Yokota, Ayataka Nishio

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Abstract

A recording medium to which this invention is applied includes a first recording area 3 where a digital audio signal sampled at a predetermined sampling frequency and quantized by a predetermined number of bits is recorded, a first management area 2 where information for carrying out management of the digital audio signal recorded in the first recording area 3 is recorded, a second recording area 6 where a digital audio signal corresponding to the digital audio signal recorded in the first recording area 3 is recorded, and a second management area 5 where information for carrying out management of the digital audio signal recorded in the second recording area 6 is recorded, wherein discrimination data indicating that plural recording areas exist is recorded in the first management area 2. Thus, this recording medium has compatibility with the conventional CD player, and can be reproduced in the state of high sound quality by a higher rank reproducing equipment.

Claims9

Dependent claims

A reproducing method for reproducing digital audio information from a recording medium including a first recording area where digital audio information and address information are recorded in the state where they are multiplexed, a first management area where information for carrying out management of the digital audio information recorded in the first recording area is recorded, a second recording area where digital audio information and address information corresponding to the first recording area are recorded in the state where they are multiplexed, and a second management area where information for carrying out management of the digital audio information recorded in the second recording area is recorded, the method includes:

a first reading step of reading the digital audio information and the address information from the first recording area by a first reproduction section;
a second reading step of reading the digital audio information and the address information from the second recording area by a second reproduction section;
an output step of outputting, on the basis of the digital audio information and the address information obtained at the first reading step and the digital audio information and the address information obtained at the second reading, the digital audio information step while taking synchronization therebetween;
a first discrimination step of discriminating whether or not information storage quantity of a memory section for temporarily storing digital audio information from the second reproduction section is a predetermined value or more;
a reproduction section stand-by step such that in the case where it is discriminated at the first discrimination step that the storage quantity of the information stored in the memory section is the predetermined value or more, a control is conducted so as to allow the second reproduction section to be in stand-by state;
a second discrimination step of discriminating whether or not the information storage quantity of the memory section is below the predetermined value;
and
a reproduction section re-start step of controlling the second reproduction section so that it is restarted in the case where it is discriminated at the second discrimination step that the storage quantity is below the predetermined value.

5 more elements

A reproducing apparatus adapted for reproducing digital audio information from a recording medium including a first recording area where digital audio information and address information are recorded in the state where they are multiplexed, a first management area where information for carrying out management of the digital audio information recorded in the first recording area is recorded, a second recording area where digital audio information and address information corresponding to the first recording area are recorded in the state where they are multiplexed, and a second management area where information for carrying out management of the digital audio information recorded in the second recording area is recorded;

the apparatus comprising:
first reproducing means for reading the digital audio information and the address information from the first recording area;
second reproducing means for reading the digital audio information and the address information from the second recording area;
memory means for storing the digital audio information from the second reproducing means;
control means for controlling the memory means and the second reproducing means on the basis of the address information from the first recording area and the address information from the second recording area;
mixing means for mixing the digital audio information reproduced by the first reproducing means and the digital audio information reproduced by the second reproducing means;
and
output means for outputting the digital audio information mixed at the mixing means.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/964,345Filed 4 Nov 1997 · division
Priority: JP 7-15675931 May 1995
Granted: 5 Jan 1999
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

G11B 7/0079
Arrangement of the information on the record carrier, e.g. form of tracks , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped;…:…
G11B 7/0037
Recording, reproducing or erasing systems characterised by the shape or form of the carrier: with discs
G11B 7/00736
Arrangement of the information on the record carrier, e.g. form of tracks , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped;…:…
G11B 20/10527
Digital recording or reproducing: audio or video recording; Data buffering arrangements