JPH02116058A - Information recording disk - Google Patents

Abstract

PURPOSE:To cope with plural reproducing devices of different reproduction systems by applying at least >=2 of different video signal systems to record the video of the same or similar contents and also recording all recorded signal systems and recording areas as the control information. CONSTITUTION:The video of the same or similar contents are recorded on an information recording disk by at least >=2 of different video signal systems, i.e., the NTSC, PAL, SECAM, and high vision systems. At the same time, the all recorded video signal system and recording areas are recorded as the control information. For instance, an NTSC area 11 where the video of an NTSC system are recorded is prepared together with a PAL area 12 where the same contents are recorded by a PAL system, a digital data area 13 where the text data, etc., are recorded, a CD-DA area 14 where the digital audio data are recorded, and a TOC area 15 where all control information on the recording disk are stored. Thus it is possible to cope with plural devices of different video signal systems.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a music area (hereinafter referred to as audio part) mainly for recording and playing back music, such as a compact disc video (hereinafter referred to as CDV), and The present invention relates to an information recording disc on which a video area (hereinafter referred to as a video part) for simultaneously recording and reproducing moving images and music is recorded together with auxiliary information.

2. Description of the Related Art In recent years, information recording discs, such as compact disc players, on which digital audio data and auxiliary data are recorded, have been used in combination with video equipment such as television sets, video discs, and video tape recorders, and information equipment such as personal computers and microcomputers. There is a strong desire to handle not only audio but also images and data at the same time. For this reason, information recording disks that can handle various forms of information such as images, audio, and data in a composite manner have appeared.

Hereinafter, as an example of the conventional information recording disk mentioned above, C.
Let me explain about DV.

As shown in FIG. 2, the CDv is divided into two areas, an audio part 21 and a video part 22, at the inner and outer peripheries. Like a ROM (Compact Disc Read Only Memory), a digital data string consisting of digital audio data and auxiliary data is recorded, and the video part 22 contains a signal obtained by FM modulating an NTSC signal, which is a composite video signal, like a laser disc. The digital data string is frequency-divided and recorded. Furthermore, the innermost circumference has a TOC 23 in which management information of the CDv is recorded. When the CDV playback device plays a CDV, the audio part 21 outputs only an audio signal using digital audio data, and the video part 22 outputs only an audio signal. FM composite video signal
A composite video signal and an audio signal are output using the modulated signal and the digital audio data.

Problems to be Solved by the Invention However, with the above configuration, it is not possible to reproduce signals using different signal systems such as PAL and NTSC, so the system is compatible with both NTSC and PAL. In order to do this, there was a problem in that separate disks had to be prepared for each.

In view of the above-mentioned problems, the present invention records video information with similar contents on a single information recording disk using a plurality of methods.
Furthermore, by recording in the management information which format is recorded and where, an information recording disc that can be used with a plurality of devices using different video signal formats is provided.

Means for Solving the Problems In order to solve the above problems, the information recording disc of the present invention uses NTSC, which is a different video signal system.

Videos with the same or similar content are recorded using at least two of PAL, SECAM, and high-definition signal formats, and the formats and recording locations of all recorded video signals are recorded as management information. There is.

Effect of the Invention With the above-described configuration, the present invention selects a reproducible video signal area and reproduces the video signal by referring to the management information even if the playback device uses different video playback methods. It is possible to realize an information recording disc that can be played on multiple devices.

Embodiment Hereinafter, an information recording disk according to an embodiment of the present invention will be described with reference to the drawings.

Figure 1 shows different video signal systems, NTSC and P.
FIG. 2 is a conceptual diagram of an information recording disc on which video signals of the same content are recorded in two AL formats.

11 is an NTSC area where NTSC video is recorded, and 12 is a PAL area where PAL video signals are recorded, and the content of the recorded video is NTSC.
The area and the PAL area are the same.

Reference numeral 13 denotes a digital data area in which digital data is recorded, in which still image data expanded into a bitmap, text data, etc. are recorded. 14 is a CD on which digital audio data is recorded, similar to a CD.
The DA area 15 is a TOC area that contains all the management information of this disc.

When playing the above information recording disc, the TOC area where management information is recorded, the CD-DA area where digital audio data is recorded, and the digital data area where various digital data are recorded are the same as on CDs. However, when playing back video, there is a PAL area 11 and an NTSC area 12, so the playback device refers to the signal system and recording location recorded in the TOC area 15. NTSC area 11 and PAL
Either one of the areas 12 can be selected and reproduced.

As mentioned above, the different video signal systems NTSC and P
ALL Videos with the same or similar content are recorded using at least two of SECAM and high-definition signal formats, and the format and recording location of all recorded video signals are recorded as management information. If you do this, you can play the video signals without any problems even on playback devices with different video signals.

Effects of the Invention As described above, the information recording disk of the present invention supports different video signal systems such as NTSql PAL, SECAM,
Video with the same or similar content is recorded using at least two signal formats, and the management information allows you to know in advance the format and recording location of all recorded video signals. Therefore, it is possible to realize an information recording disk that can be used with a plurality of playback devices using different video signal playback methods using a single disk.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an information recording disc according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional CDV disc. 11...NTSC area, 12...PAL area, 1
3...Digital data area, 14...CD-DA area, 15...TOC area.

Claims (2)

[Claims] (1) An information recording disc characterized by recording videos with the same or similar content using a plurality of different signal systems. (2) The information recording disc according to claim 1, wherein the management information includes the format and recording location of all recorded video signals.