JPH03290871A - Information signal recording medium - Google Patents

Abstract

PURPOSE:To facilitate the management of a recordable region by providing a reproduction-only region, a recordable region and a management region where the identification signals for identifying the reproduction-only region and the recordable region and address signals are previously recorded and the fresh identification signals and address signals cannot be recorded. CONSTITUTION:The reproduction-only region where sound information signals, video information signals and information signals exclusive thereof are previously recorded along or in combination and the fresh information signal cannot be recorded, the recordable region where the fresh information signals, such as sound information signals, video information signals and information signals exclusive thereof can be recorded and the management region where the identification signals for identifying the reproduction-only region and the recordable region as well as the address signals, such as time signals of the reproduction-only region and the recordable region, are previously recorded and the fresh identification signals and address signals cannot be recorded are provided on the information signal recording medium. The information signal recording medium which allows the one-dimensional management of the reproduction-only region and the recordable region and particularly the management of the recordable region is obtd. in this way.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a reproduction-only area in which information signals are recorded in advance and in which new information signals cannot be recorded, and a reproduction-only area in which new information signals can be recorded. The present invention relates to a recording medium having a recordable area.

[Summary of the invention]

The present invention relates to an information signal recording device, and includes a reproduction-only area in which information signals are recorded in advance and in which new information signals cannot be recorded, a recordable area in which new information signals can be recorded, a reproduction-only area, and By having a management area in which an identification signal for identifying the recordable area and an address signal for the read-only area and the recordable area are recorded in advance, and in which new identification signals and address signals cannot be recorded, the read-only area is It also makes it possible to unify the management of the recordable area, and in particular makes it easy to manage the recordable area.

[Conventional technology]

A compact disc (CD) has a TOC (Table of Contents) in the lead-in.
: table of contents) is recorded.

FIG. 2 shows this TOC in the form of a table. BNO indicates the subcoding block number in the lead-in. P.O.
INT, PMIN, PSEC, and PBLOCK each indicate the following numerical values depending on the discriminator POINT.

Note that the same content is repeated for three circuits each.

■When POINT is 00-99 POINT represents the movement number and is PMIN.

PSEC and PBLOCK represent the minutes, seconds, and blocks of the start time (absolute time) (start address) of the movement with that number.

■When POINT is AO PMIN represents the first movement number, PSEC.

Both PBLOCKs are 0.

■When POINT is Al PMIN represents the last movement number, PSEC.

Both PBLOCKs are 0.

- When POINT is A2, PMIN, PSEC, and PBLOCK represent minutes, seconds, and blocks of the lead-out start time (absolute time).

Note that when PMIN represents minutes, the value is any one from 00 to 74. If PSEC represents seconds, its value is from 00 to
59. When PBLOCK represents a block, it is one of 00 to 74.

[Problem to be solved by the invention]

In the case of the above-mentioned compact disc, the area in which information signals are recorded is, of course, a playback-only area, and each unit playback-only area is managed by the TOC recorded in its lead-in. .

By the way, in addition to read-only areas such as magnetic disks, magneto-optical disks, etc. where information signals are recorded in advance and where new information signals cannot be recorded, there are also recordable areas (where new information signals can be recorded). In the case of an information signal recording medium that has a writable area or a rewritable area, there is no problem with the read-only area where information signals are pre-recorded and new information signals cannot be recorded. The problem is management of the recordable area in which information signals can be recorded.

It is conceivable to provide a dedicated management area on the recording medium for managing the recordable area, and record an address signal corresponding to the information signal to be recorded in the recordable area in the management area, but this would be extremely complicated. .

In view of this, the present invention provides a system in which an information signal is recorded in advance,
Management of the read-only area and the recordable area in an information signal recording medium that has a read-only area where new information signals cannot be recorded and a recordable area where new information signals can be recorded. The purpose of the present invention is to propose an information signal recording medium that allows for the unification of data and, in particular, easy management of recordable areas.

[Means to solve the problem]

The information signal recording medium according to the present invention has a reproduction-only area in which information signals are recorded in advance and cannot record new information signals, a recordable area in which new information signals can be recorded, a reproduction-only area, and An identification signal for identifying the recordable area and an address signal for the read-only area and the recordable area are recorded in advance, and the storage area has a management area in which new identification signals and address signals cannot be recorded.

[Effect]

According to the present invention, an identification signal for identifying the read-only area and the recordable area and an address signal for the read-only area and the recordable area are recorded in advance in the management area.

〔Example〕

The present invention will be explained in detail below. In this embodiment, an information signal recording medium such as a magnetic disk, magneto-optical disk, magnetic card, magneto-optical card, magnetic drum, magnetic tape, etc.
A reproduction-only area in which audio information signals, video information signals, and other information signals are pre-recorded singly or in combination, and in which new information signals cannot be recorded, and audio information signals, video information signals, and other information. A recordable @ area in which new information signals such as signals can be recorded, an identification signal for distinguishing between a read-only area and a recordable area, and an address signal such as a time signal for the read-only area and the recordable area are preliminarily provided. A management area (in the case of an information signal recording disc, the innermost or outermost track, etc.) is provided where new identification signals and address signals cannot be recorded.

An example of a start address signal consisting of an identification signal of a read-only area and a recordable area recorded in a management area, a time signal of a read-only area and a recordable area, etc. will be explained with reference to the table in FIG. In FIG. 1, parts corresponding to those in FIG. 2 are designated by the same reference numerals, and redundant explanation will be omitted.

POINT, PMIN, PSEC, and PBLOCK each indicate the following numerical values depending on the discriminator POINT.

■When POINT is between 00 and 99 (excluding 01), POINT represents the movement number in the playback-only area, and PM
IN, PSEC, and PBLOCK represent the minutes, seconds, and blocks of the start time (absolute time) (start address) of the movement with that number.

■When POINT is AO, PMIN represents the first movement number in the playback-only area, and PS
Both EC and PBLOCK are O.

■When POINT is A1, P-N represents the last movement number in the playback-only area, and PSE
C and PBLOCK are both 0.

(2) When POINT is A2, PMIN, PSEC, and PBLOCK represent minutes, seconds, and blocks of the read-out start time (absolute time) of the read-only area.

■When POINT is 01, POINT represents the number of the movement in the recordable area, PMIN, PSEC.

PBLOCK represents the minutes, seconds, and blocks of the start time (absolute time) of the movement with that number (start address).

In this example, the recordable area starts from one unit recordable area, that is, the unit recordable area where POI NT is 01. However, the recordable area may be composed of a plurality of continuous or non-contiguous unit recordable areas.

Further, in this example, the reproduction-only area is composed of a plurality of unit reproduction-only areas, that is, a plurality of unit reproduction-only areas having different POINTO values. However, the playback-only area
It may be configured from a plurality of continuous or non-contiguous read-only areas, or one unit read-only area.

If the audio signal of the message is recorded in one unit recordable area of the information signal recording medium in which the audio signal of the music is recorded in a plurality of unit reproduction-only areas, it is suitable for giving as a present.

Furthermore, if a password or the like is written in one unit recordable area of an information signal recording medium in which data signals of a game program are recorded in a plurality of unit playback exclusive areas,
It is extremely convenient in practice.

〔Effect of the invention〕

According to the above-mentioned information signal recording medium of the present invention, there is a reproduction-only area in which an information signal is recorded in advance and in which a new information signal cannot be recorded, a recordable area in which a new information signal can be recorded, and a reproduction area. Since the identification signal for identifying the dedicated area and the recordable area and the address signal for the read-only area and the recordable area are recorded in advance, and a management area in which new identification signals and address signals cannot be recorded, playback is not possible. It makes it possible to unify the management of the dedicated area and the recordable area, and it is especially easy to manage the recordable area.

[Brief explanation of drawings]

FIG. 1 is a table showing the TOC of the embodiment of the present invention, and FIG. 2 is a table showing the TOC of the conventional example.

Claims (1)

[Claims] A reproduction-only area in which information signals are pre-recorded and in which new information signals cannot be recorded; a recordable area in which new information signals can be recorded; the reproduction-only area and the recording; It is characterized by having a management area in which an identification signal for identifying the different possible areas and an address signal for the read-only area and the recordable area are recorded in advance, and in which new identification signals and address signals cannot be recorded. Information signal recording medium.