JP2632080B2 - Disc player - Google Patents

Description

The present invention relates to a disc player such as a CD player.

<Prior Art> In a CD player, a skip key is usually provided in order to access a music desired by an operator. By pressing this skip key, it is possible to skip to the next or previous song from the current song. Also, by continuously pressing this skip key (hereinafter referred to as continuous pressing),
The skip number is incremented or decremented at a predetermined time interval, so that the operator can press the skip key continuously for a predetermined time to access, for example, three stations ahead or before the current song. Have been.

Explaining with reference to FIG. 5, when the operator presses the skip key and presses continuously for a time of t1 × 2, the skip number is increased or decreased at time intervals of t1, and in this embodiment, the music three music ahead of the current music is searched. I will aim.

That is, it is determined whether or not the skip key has been pressed at every t1, and if the push key has been pressed or continued, the skip number is increased or decreased.

During this time, the mute is applied, and the access operation is continued, and the access operation is cleared every predetermined time t1.

<Problem to be Solved by the Invention> However, since the skip operation ends after accessing the head of the target song, and then the reproduction operation is executed, as shown in FIG. If there is a song with a short time in the middle, access to the song in the middle will be completed while the skip number is being increased or decreased at predetermined time intervals, and that song will be played for a moment and returned to the target song again. There is a problem of performing an operation of starting an access operation toward it. Therefore, there is a drawback that a reproduced sound is output for a moment, which causes discomfort.

SUMMARY OF THE INVENTION It is an object of the present invention to solve such a disadvantage of the conventional disk player and to provide a disk player in which the muting does not occur when the skip key is continuously pressed.

<Means for Solving the Problems> For this purpose, a disc player according to the present invention includes a constant time measuring means for measuring a constant time t1, and a continuous pressing of a skip key for selecting a desired music. Up / down means for increasing or decreasing the skip number for each output of the fixed time measuring means, access means for accessing a pickup to a target song determined by the skip number, and playback audio output at the start of access by the access means Mute means for muting, a time t2 from the completion of access of the pickup to the output of the fixed time measuring means immediately before the time t2, a comparing means for comparing the fixed time t1, and the time t2 by the comparing means. When it is determined that the time is shorter than the predetermined time t1, the track jump is performed in a direction opposite to an access direction for music selection. A jump means for performing a jump, a reproducing means for performing a reproducing operation toward the target music after the jump by the jump means, and a comparison by the comparing means again when the pickup reaches the target music by the reproducing means, When it is determined that the time t2 is shorter than the predetermined time t1, a track jump is executed again by the jump means, and when it is determined that the time t2 is longer than the predetermined time t1, the mute by the mute means is released. And a control means for performing the control.

<Operation> When the skip key for selecting a desired music piece is continuously pressed, the number of skips increases or decreases at regular time intervals. The fixed time is compared with the access time to the target music. If the access time is shorter than the fixed time, a redundant time is set for the access.

An example of the present invention will be described below with reference to the drawings.

In FIG. 1, a pickup 2 is controlled by a servo circuit 3 to read an RF signal from a disk 1. The signal is supplied to a servo circuit 3, a signal processing circuit 4, a D / A low-pass filter 5,
And is input to the mute circuit 6. Then, the audio signal is sent to an audio circuit (not shown) connected to the subsequent stage of the mute circuit 6, and is configured to be voiced here. The servo circuit 3 is controlled by a control device 7, and track information and time information recorded on the disk 1 are input from the signal processing circuit 4 to the control device 7.

An operation unit 8 is connected to the control device 7, and by pressing an up skip key 9a or a down skip key 9b provided on the operation unit 8, it is possible to skip from the current song to another song. When the skip key 9 is pressed, the control device 7 controls the servo circuit 3 to make the head track of the target music on the disk 1 accessed, and at the same time, outputs a mute command signal to the mute circuit 6 to set the reproduction output to a silent state. It is configured as follows.

The control device 7 is configured to skip up or down at predetermined time intervals when the skip key 9 is continuously pressed. In FIG. 2, when the operator presses the skip key 9 for a predetermined time in order to skip from the current music to the +3 music, the control device 7 sends a signal to the mute circuit 6 to mute and at the same time every predetermined time t1 Increase the number of skips. During this time, the access by the servo circuit 3 continues, and the access time t2 is counted by the counter inside the control device 7. And the access operation is t1
Cleared by skip up or down every hour,
At the same time, the counter is cleared.

In the example shown in the figure, since the tune of +1 is short, access to the beginning of +2 tunes is completed before skip-up.
Upon receiving the access completion signal from the signal processing circuit 4, the control device 7 compares the access time t2 with the predetermined time t1, and when t1> t2, performs an operation for providing a redundant time to the servo circuit 3. It is configured to make it happen.

 FIG. 3 shows an example of this redundant operation.

+ T2 when t1> t2 at the time of T1 that accessed the second track
To kick back one track (1.6 μm). Then, at T3, the player goes to the target music at the same speed as the normal reproduction. When the target music is entered, the control device 7 again compares t1 and t2, repeats the above redundant operation until t1 ≦ t2, and
, A signal is sent to the mute circuit 6 to cancel the mute. In this example, since a skip command arrives during the redundant operation, the target music is set to +3 and access is started again. When access is made to +3, since t1 <t2, a signal is sent to the mute circuit 6 and the mute is released at the same time as the access is completed.
Although an example of skip-up has been described with reference to FIG. 3, the motion is completely performed also in the case of skip-down.

 The operation will be described with reference to FIG.

During playback of the CD, the control device 7 checks whether or not the skip key 9 has been operated (steps 14 and 15). In the key processing, as shown in FIG.
When the up skip key 9a is pressed (step
32), the target music number is increased (step 33), and if the down skip key 9b is pressed (step 34), the target music number is decreased (step 35). And step 31
In the case of continuous pressing, a predetermined time t1 (for example, 670 mse
c) Repeat the above operation every time.

When the skip key 9 is operated, the control device 7 sends a signal to the mute circuit 6 to turn on the mute (step
16) Also, a signal is sent to the servo circuit 3 to start access (step 17). Then, the key processing is executed during the access (step 18). When the access to the target music (the currently selected music) is completed (step 19), the predetermined time t1 is compared with the current access time t2 ( Steps
20). If t1 ≦ t2, cancel mute (step
24) Terminate the operation. If t1> t2, track kickback is performed (step 21), normal reproduction is performed (step 22), and the above operation is repeated until t1 ≦ t2. During this time, key processing is executed (steps 23 and 25). In step 26, it is determined whether or not the target track has been reached. If the target track has not been reached, the process returns to step 23, and if the target track has been reached, the process returns to step 20. ).

As described above, the muting during the skip operation can be prevented. Moreover, when t1 ≦ t2, the redundant operation is not performed.
Access time can be minimized.

<Effects of the Invention> As described above, the disc player of the present invention includes a fixed time measuring means for measuring a fixed time t1 and a fixed time by continuously pressing a skip key for selecting a desired music. Up / down means for increasing or decreasing the number of skips for each output of the measuring means, access means for accessing a pickup to a target song determined by the skip number, and mute for muting playback audio output at the start of access by the access means Means, a time t2 from completion of access by the pickup to the output of the predetermined time measuring means immediately before the time, and a comparing means for comparing the fixed time t1, and the time t2 by the comparing means.
Is determined to be shorter than the predetermined time t1, a jump means for performing a track jump in a direction opposite to an access direction for music selection, and a reproduction operation is performed toward the target music after the jump by the jump means. Reproduction means,
When the pickup reaches the target song by the reproducing means, the comparison is performed again by the comparing means.When it is determined that the time t2 is shorter than the predetermined time t1, the track jump is executed again by the jumping means, Control means for canceling mute by the mute means when it is determined that the time t2 is equal to or longer than the predetermined time t1, so that muting during skip operation can be prevented, and the access time can be minimized. There is an effect that can be suppressed.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIGS.
FIG. 4 is an explanatory view of the operation, FIG. 4 is a flowchart, FIG.
The figure is an explanatory view of the prior art. 1: disk, 2: pickup, 3: servo circuit, 4: signal processing circuit, 5: D / A low-pass filter, 6: mute circuit, 7:
Control device, 8: operation unit, 9: skip key.

Claims (2)

(57) [Claims] 1. A constant time measuring means for measuring a constant time t1, and a skip number is increased or decreased for each output of said constant time measuring means by keeping pressing a skip key for selecting a desired music. Up / down means for downing; access means for accessing a pickup to a target song determined by the skip number; mute means for muting playback audio output at the start of access by the access means; and The time t2 up to the output of the constant time measuring means immediately before and the constant time t1
A jumping unit that performs a track jump in a direction opposite to an access direction for music selection when the comparing unit determines that the time t2 is shorter than the fixed time t1. A reproducing unit that performs a reproducing operation toward the target song after the jump by the jump unit; and a comparison is again performed by the comparing unit when the pickup reaches the target song by the reproducing unit, and the time t2 is longer than the fixed time t1. Control means for executing a track jump again by the jump means when it is determined that the time is short, and canceling mute by the mute means when it is determined that the time t2 is equal to or longer than the predetermined time t1. A disc player, characterized by: 2. The control device according to claim 1, wherein when the number of skips is changed by the up / down means during reproduction by the reproduction means, the access means executes an operation of accessing the pickup to the target music by the access means. A disc player according to claim 1.