JPS63269336A - Optical disk system - Google Patents

Abstract

PURPOSE:To simultaneously and independently, perform recording and reading by arranging at least one optical pickup capable of executing a recording mode and at least another one optical pickup capable of executing a reading mode so that they can be operated independently on one optical disk. CONSTITUTION:A reloadable optical disk 11 is placed on a driver 10 which rotates the optical disk at constant speed. In the disk driver 10, two accessing devices 12 and 14 consisting of linear motors which can move the optical pickups 13 and 15 in non-contact with the disk 11 arbitrarily in the diameter direction of the disk 10 at high speed, etc., are arranged. The accessing devices 12 and 14 are equipped with the optical pickups 13 and 15 respectively, and one of them is provided with the capacity of the recording mode, and the other is provided with that of the reading mode. Since the optical pickup on the other side can be operated freely even while the optical pickup on one side performs the recording of information, it is possible to read the information already recorded arbitrarily.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an optical disk system such as a magneto-optical disk.

BACKGROUND ART As shown in FIG. 2, an access device 22 is provided with one optical pickup 23 for an optical disk 21 of an optical disk driver 20, and the optical disk system is set in a recording mode to record information to be recorded. Once the recording work is completed, it is normal to switch to reading mode and check the recorded information.

Problems to be Solved by the Invention In the conventional example, it is not possible to check whether the information to be recorded has been reliably recorded until the recording mode is completed. It would have been impossible to do so with a time difference.

The present invention aims to provide an optical disk system that can solve this problem.

Means for Solving the Problems The present invention provides a means for independently providing a recording mode and a reading (playback) mode in one optical disc system. An optical pickup capable of controlling the reading mode and an optical pickup capable of at least a reading mode are provided in an independently operable state.

The optical pick-up for the active recording mode is used to record the information to be recorded, and the other optical pickup for the playback mode can be used to immediately read out the recorded information as desired.

Example FIG. 1 shows an embodiment of the present invention.

A rewritable optical disc 11 is placed on a driver 1Q that rotates the optical disc at a constant speed. The disk driver 10 is equipped with two access devices 12114 each including a linear motor or the like that allows the optical pickups 13 and 15 to move arbitrarily at high speed in the radial direction of the disk 1o over the disk 11 without contact. Each access device 12, j4 is naturally equipped with an optical pickup 13.15, one with recording mode capability and the other with read mode capability.

Even when information is being recorded on one optical pick-up, the other optical pickup is completely free and can immediately read the recorded information at will.

Effects of the Invention According to the present invention, when recording information using a conventional optical disk system, other information recorded on the optical disk in use cannot be read or reproduced until the above recording operation is completed. However, it is generally possible to record a huge amount of information on a single optical disc, and it is often necessary to use the same optical disc to playback, search, etc. for different purposes. However, according to the present invention, recording and reading can be performed simultaneously and independently by sharing the same optical disk, and the effect is excellent.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a conventional example. 1o... Optical disk driver, 11...
...Optical disk, 12.14... Optical pickup access device, 13.15... Optical pickup.

Claims (1)

[Claims] It has a rewritable optical disk, a first optical pickup for recording on the optical disk, and a second optical pickup for reading signals from the optical disk, and the first and second optical pickups each operate independently. An optical disc system characterized by being able to