JPH02304728A - Optical information recording and reproducing device - Google Patents

Abstract

PURPOSE:To enable the measurement of a life of a laser by providing a circuit for measuring a laser lighting time based on a signal corresponding to the operational kind of the subject device. CONSTITUTION:The device consists of a CPU l for controlling a laser drive provided in the device, a timer 3 for measuring a using time of the laser and a timer drive circuit 2 for operating the timer 3. When one of these signals of read, write and erase is outputted from the CPU 1 in the above constitution, the timer drive circuit 2 is operated, and the using time corresponding to the operational kind of the laser, i.e. recording, reproducing and erasing is measured by the timer 3. By this method, a life of the laser can be estimated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical information recording/reproducing device that can measure the life of a laser for recording, reproducing, and erasing information.

[Conventional technology]

Generally, optical information recording and reproducing devices such as compact disc devices and laser disc devices use lasers for reproducing and erasing criminal records, but in playback-only devices such as compact disk devices, lasers are used. Since the laser is used at an approximately constant output power, it is possible to estimate the usage time of the laser itself from the usage time of the device.

[Problem to be solved by the invention]

However, in optical information recording and reproducing devices such as original disk devices and original card devices, the radar is not always lit even if the device is operating, and furthermore, the radar is not always lit when recording, reproducing, or erasing information. Since the output power is different, it is difficult to estimate the usage time of the radar itself from the usage time of the device.

〔the purpose〕

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide an optical information recording/reproducing device.

An object of the present invention is to provide an optical information recording and reproducing device that can measure the lifespan of a radar by providing a circuit that measures the lighting time of the radar based on a signal corresponding to the type of operation of the device.

[Means to eliminate the issue]

According to the present invention, the above purpose is to record and reproduce information.

The present invention is characterized by comprising a laser for erasing, a drive circuit for driving the laser according to the operation of the laser, and means for measuring the actual operating time of the laser using a signal according to the operation of the laser. This is achieved by an optical information recording/reproducing device.

〔Example〕

Hereinafter, embodiments of the present invention will be described specifically and in detail based on the drawings.

FIG. 1 is a block diagram for explaining an optical information recording/reproducing apparatus according to the present invention.

In the figure, reference numeral 1 denotes a CPU that controls the drive of a radar provided in the optical information recording/reproducing apparatus of the present invention.

3 is a timer that measures the usage time of the laser. 2 is a timer drive circuit for operating the timer 3.

In the above configuration, from CPU 1 READ, W
RITE.

When one of the 12RASE signals is issued, the timer drive circuit 2 is activated, and the timer 3 measures the usage time according to the type of laser operation (recording, reproduction, erasing).

FIG. 2 is a block diagram for explaining a second embodiment of the present invention.

In FIG. 2, an importance selection circuit 4 is further incorporated into the block diagram of FIG. 1.

In the configuration of FIG. 2, READ from CPU 1.

When either the WRITE or ERASH signal is issued, the importance selection circuit 4 selects the used radar/4.
'A signal corresponding to the power is output, and the timer drive circuit 2
is activated, and the timer 3 measures the actual usage time of the laser.

〔Effect of the invention〕

As explained above, according to the present invention, there is provided a timer circuit that measures the usage time of the radar driven by a signal corresponding to the lighting operation of the laser, and a timer circuit that determines the signal corresponding to the lighting operation of the laser and operates according to the signal. By providing a timer circuit that selects the degree of importance and measures the actual usage time of the laser, it is possible to provide an optical information recording and reproducing device that makes it possible to estimate the life of the laser.

[Brief explanation of drawings]

FIG. 1 is a block diagram for explaining an optical information recording/reproducing apparatus according to the present invention, and FIG. 2 is a block diagram for explaining a second embodiment of the present invention. 1...CPU, 2...Timer drive circuit%3.
...Timer, 4...Importance selection circuit.

Claims (1)

[Claims] (1) A laser for recording, reproducing, and erasing information, a drive circuit for driving the laser according to its operation, and a means for measuring the actual usage time of the laser using a signal according to the operation of the laser. An optical information recording and reproducing device characterized by having the following features: