JPS62298056A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To automatically execute the stop or a temporary stop of a reproducing state in a desired disk reproducing position, by setting a stop or the temporary stop of a reproducing state in a desired disk reproducig position. CONSTITUTION:From a Q code which is reproduced from a disk, at least one of P-time and A-time is stored in a readable/writable storage element RAM 5. At the time of reproducing the disk the coincidence point of scheduled information of the Q code stored in the storage element RAM 5, and scheduled information of the Q code reproduced from the disk is detected, and base on a detecting signal, the reproducing operation is automatically brought to the stop or the temporary stop.

Description

[Detailed Description of the Invention] V. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a disc playback device, and in particular, when playing back a compact disc or the like, for example, a playback operation is performed at a preset playback position. The present invention relates to a disc playback device that can be stopped or paused.

[Conventional technology]

For example, in a disc playback device such as a compact disc in which songs are recorded chronologically from the inner circumference to the outer circumference of the disc, if the operator wants to stop the playback operation at a desired position during playback, the operator must stop the playback. The player had to press an operation button for playback or pause playback, or eject a disc.

By the way, when recording from the compact disc to, for example, a cassette tape, if the continuous recording time of the cassette tape is shorter than the recording time of the compact disc, tape recording 1 may be interrupted in the middle of the song. conditions may arise. In order to avoid this situation, conventionally,
It is necessary for the operator to perform the above-described operation to stop or pause the playback operation at an appropriate playback position on the compact disc.

[Problem that the invention seeks to solve]

The above-mentioned conventional technology does not take into consideration the automatic stopping or pausing of playback at a desired playback position on a disc. However, there is a problem in that it is necessary to monitor the playback state and, when a desired playback position is reached, perform an operation to stop or pause the playback operation.

The purpose of the present invention is to automatically stop or pause the playback operation when a preset playback position is reached without performing any operation to stop or pause the playback operation when playing Dinuku. The objective is to provide a disc playback device that can perform the following tasks.

[Means for solving problems]

The purpose of the above is to obtain information on which track, minute, and second the current playback position is from among the so-called subcodes that are played simultaneously when playing information such as songs recorded on a disc (hereinafter referred to as , P-TIME), and information on how many minutes and seconds the current playback position is at the beginning of the first track (hereinafter referred to as
A-TIME) at the desired playback position of the code having the P-TIME and A-TIME (abbreviated as A-TIME)
Both are stored in advance, and then when playing back the disk, the point in time when the stored A-TIME, etc. and the played A-TIME, etc. match is detected, and at this point in time, the playback of the disc is stopped or This is accomplished by pausing.

[Effect]

When playing back information such as songs recorded on a disc, press K.
So-called subcodes that are played simultaneously include P, Q, l
There are various codes called -L, S, 'I', U, V, and W codes, and the Q code among these codes depends on the type of disc, the presence or absence of high-frequency extortion characteristics of the music signal, and the above-mentioned P-TIME and A. - Consists of information such as TIME. Therefore, at least one of P_TIME and A_TIME from among the Q codes reproduced from this disc is stored in advance in a readable and writable memory element (hereinafter referred to as FLAM 5).

Thereafter, when playing back the disc, a coincidence point between the Q code schedule information stored in the RAM and the Q code schedule information to be reproduced from the disc is detected, and the playback operation is performed based on the detected signal. K to stop or pause.

As a result, according to the present invention, the playback operation can be automatically stopped or paused when a preset playback position is reached, without the need for any operation to stop or pause the playback operation.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

In this embodiment, information recorded on a disk is converted into an optical signal by an optical semiconductor element (not shown), converted into an electrical signal by an optical signal demodulation circuit 1, and then converted into a binary signal by a data reproduction circuit 2. converted into a signal.

Among the binarized signals, the music signal is subjected to reproduction processing in the audio circuit 3 and output as an analog audio signal. Further, the Q code in the subcode is supplied to the data register 4 and taken into the system controller 7 under the control of the system controller 7. Thereafter, a display device (not shown) displays, for example, A-TIME in the Q code.

If you wish to stop the playback operation at a predetermined playback position during the next playback while the disc is currently being played, press the operation key to turn on the switch 8 when the playback reaches the predetermined playback position. . As a result, in this embodiment, the switch 8 is controlled by the control signal from the system controller 7.
A-TIME of data register 4 when turned on
is transferred and stored in RAM 5. Thereafter, disc playback is stopped by known means.

Next, when the same disc is put into playback mode, RAM 5
The A-TIME recorded in K and the A-TIME in the data register 4 are compared by a successive approximation circuit 6. In the comparison circuit 6, p of the data register 4,
When it is detected that the -TIME matches the A-TIME of the RAM 5, the detection signal is supplied to the system controller 7. As a result, the system controller 7
In response to the detection signal, the reproduction state of the disc is stopped or paused by known appropriate means.

In this embodiment, after the disc playback state is stopped or paused as described above, unless a separate operation key is pressed that initializes all functions, the playback start operation will not be performed. , reproduction of the disc is started from the stopped or paused position.

As is clear from the above description, according to this embodiment, A
-The TIME display shows the elapsed time from the beginning of the first track to the current playback position, so it is clear when to turn on switch 8 to stop or pause the playback state during the next playback. can be known.

In addition, in this embodiment, since the disc playback state can be restarted from the position where the disc playback state was automatically stopped or paused, the information recorded on the disc before and after the stop or pause is extremely Can be easily played continuously.

[Effects of the Invention] According to the present invention, stopping or pausing the playback state is set in advance at a desired disc playback position, and in the playback state after the setting, an operation for stopping or pausing the playback operation is not particularly required. Even if this is not done, the playback state can be automatically stopped or temporarily stopped at the desired disc playback position (playback stop position).

As a result, according to the present invention, even when recording information on a disc, such as a cassette tape, in which the possible continuous beep time is shorter than the recording time of the disc, the playback stop position of the disc can be set continuously on the tape. By setting the time within the recordable time, it is possible to very easily avoid a situation where, for example, tape recording is interrupted in the middle of a song.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.
...Optical signal demodulation circuit, 2...Data reproduction circuit,
3... Audio circuit, 4... Data register, 5... RAM, 6... Comparison circuit, 7... System controller% 8... Switch.

Claims (2)

[Claims] (1) In a playback device for a disc in which a subcode having information representing a playback position is recorded, means for storing information representing the playback position at a scheduled playback position during disk playback; and the storage. means for detecting a match between the information stored by the means for detecting the playback position and information representative of the playback position read during playback of the current disc; 1. A disc reproducing device comprising: means for either stopping or pausing; (2) The disc playback device according to claim 1, further comprising means for displaying information representative of the playback position.