JPH02276071A - Information recording medium - Google Patents

Abstract

PURPOSE:To allow the multi-dimensional recording of development under simultaneous progression by providing 3 pieces of recording tracks in positions nearly parallel with each other and recording the stereoscopic images of the same image plane in these three pieces. CONSTITUTION:Recording and reproducing of information are executed by heads 3-1 to 3-3 and the positions nearly parallel with each other have 3 pieces of the spiral recording tracks 2. The stereoscopic images of the same image plane are recorded in these three pieces. Namely, the recording tracks 2 consisting of plural sets exist spirally on a disk 1 and the heads 3-1 to 3-3 read the information of the respective recording tracks. The heads 3-1 to 3-3 of plural sets move in the radial direction shown by an arrow (b) of the disk 1. The multiple spiral recording tracks are formed on the disk in this way. The recording of the multi-dimensional information on a sheet of the disk is possible in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is used for recording and reproducing means for audio, video, and other information.

In particular, it relates to a disk-shaped disk on which information is recorded and reproduced.

〔overview〕

The present invention enables three-dimensional image information to be recorded in an information recording medium having spiral tracks by providing three tracks arranged substantially in parallel.

[Conventional technology]

When recording and reproducing information, there are two types of disc-shaped discs: those on which recording waveforms are recorded, such as on vinyl records, and those on which information is encoded as "1" and "0", such as optical discs. be. Both have a spiral recording track on a disk, and recording and reproduction are performed by rotating the disk and moving a head for recording or reproducing information in the radial direction of the disk.

FIG. 4 shows an outline of information reproducing means using an optical disc. Information on the spiral recording track 2 on the disk 1 is read by the rotation of the disk 1 as shown by the arrow a and the movement of the head 3 as shown by the arrow .

That is, as shown in FIG.
The reflected light is projected upward and enters the half mirror 33 via the condenser lens 34 again. A part of the reflected light is incident on the light receiving section 32 via the half mirror 33 and the lens 35, and the strength of this reflected light is read.

[Problem that the invention seeks to solve]

In this way, in the conventional example, the recording track is single,
Information is centralized. In other words, one piece of information that progresses over time can be recorded and reproduced. However, as shown in Figure 6, when recording the video information of a phenomenon by projecting it not only from one direction but from multiple directions, that is, when recording simultaneous phenomena, It becomes necessary to simultaneously record and reproduce video information on one recording medium (disc). However, the conventional method has the disadvantage that it cannot cope with cases where multidimensional information recording and reproduction is required.

The present invention aims to eliminate such drawbacks and provides an information recording medium that can record simultaneously occurring phenomena in a multidimensional manner.

[Means for solving problems]

The present invention provides an information recording medium having a spiral recording track on which information is recorded and reproduced by a head. It is characterized by recording images.

[Effect]

A plurality of substantially parallel spiral tracks are provided on the medium. A multidimensional view of phenomena that are occurring at the same time,
This multiple information is recorded on each track using a plurality of heads, and this multiple information is also reproduced.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing the configuration of this embodiment. FIG. 2 shows a plan view of the disc 1.

In this embodiment, as shown in FIGS. 1 and 2, recording and reproduction of information is performed by heads 3-1, 3-2 and 3-
It has three spiral recording tracks 2 located almost parallel to each other, and three-dimensional images of the same screen are recorded on these three recording tracks.

Next, the operation of this embodiment will be explained.

On the disk 1, a plurality of sets of recording tracks 2 exist in a spiral shape. Heads 3-1, 3-2 and 3-3 read information on each recording track. Multiple sets of heads 3
-1.3-2 and 3-3 move in the radial direction of the disk 1 as shown by the arrows.

〔Effect of the invention〕

As explained above, in the present invention, since multiple spiral recording tracks are formed on a disk, multidimensional information can be stored in one piece.
It has the effect of being able to record on two discs.

A plan view showing a truck.

FIG. 4 is a schematic diagram showing the configuration of a conventional example.

FIG. 5 is an explanatory diagram related to reading information on an optical disk.

FIG. 6 is an explanatory diagram regarding recording of multidimensional information.

DESCRIPTION OF SYMBOLS 1... Disc, 2... Recording track, 3... Head, 10... Subject, 15... Projection camera, 31
... Light emitting section, 32... Light receiving section, 33... Half mirror, 34... Condensing lens, 35... Lens.

Patent applicant: NEC Corporation, 1 Agent: Patent attorney Nao Takashi Ide・

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a plan view showing recording tracks on a disk used in an embodiment of the present invention. Figure 3 shows an example of a recording disk on a disk used in a conventional example.

Claims (1)

[Scope of Claims] 1. An information recording medium having spiral recording tracks on which information is recorded and reproduced by a head, having three of the recording tracks at positions substantially parallel to each other; An information recording medium characterized by recording three-dimensional images of the same screen.