JPS6052984A - Operating method of dad player for vehicle - Google Patents

Abstract

PURPOSE:To set easily a disk when restarting its reproducing at the time of re- installing it by stopping a reproducing operation by a pause operation in the course of reproducing the disk to write a reproducing halted state in a memory, and also lighting an indicator. CONSTITUTION:The reproducing mechanism 16 of a player of a digital audio disk is controlled by a control circuit 14 containing a CPU30, an RAM32, etc. responding to an operating panel 10, and the pause button 22c of the operating button 22c of the operating panel 10 is operated in the course of reproducing to stop the reproducing operation. Subsequently, the write of a disk address to the RAM32 in case the reproducing is halted, the lighting of an indicator 24 of the panel 10 for showing this write and storage, etc. are executed. Also, a series of ending operations by the turning off of a power source circuit 12 and the rejection from the player, etc. of the disk are executed. Thereafter, by the operation of the button 22c in a reproducing expected state by re-inserting the disk, the disk is brought to the program search from the reproducing halted position basing on the storage contents of the RAM32, simultaneously to distinguish the indicator 24 and to set the disk at restarting the reproducing by an easy operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of operating a DAD player for a vehicle, in particular,
The present invention relates to a method of operating a DAD player that makes it possible to easily set the playback start position of a digital audio disc, that is, to set the beginning position of a music selection.

BACKGROUND TECHNOLOGY Digital audio discs (DAD) can provide better sound quality with a smaller diameter than conventional @-type records or cassettes, and can also provide faster access to the desired location on the disc. In recent years, the development and practical application of +1 AD play 17 for vehicles has been progressing in order to make it possible to play the DAD inside the car.

However, once the DAD player
If you play the same disc again, the pickup used for playback will return to its initial position, so if you want to play the same disc again, you will not be able to start playback from the previous re!+ end position. It had the drawback of being difficult.

Therefore, when such an AD player is used in a vehicle, playback of the disc will always start from the beginning. For example, during a limited time such as commuting time, music recorded in the latter half of the disc may be played back. There was a need for an effective countermeasure for this problem.

In order to solve this problem, it may be possible to manually set the playback start position, Zunawara, and cue selection position of the disc each time, but such manual operations generally tend to be complicated operations. As a result, there is a drawback that the driver may be unable to concentrate on driving.

OBJECT OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and its purpose is to determine the playback start position of a digital audio disc that has been ejected during playback when the disc is played again. An object of the present invention is to provide a method of operating a DAD player for a vehicle, which allows setting by a simple operation.

Structure of the Invention In order to achieve the above-mentioned object, the method of the present invention involves stopping the disc playback operation and storing the identification data of the playback disc and the playback interruption address in the memory by operating a pause button during playback of the digital audio disc. A series of termination operations are performed, including lighting up an indicator indicating writing to memory, memory to and from memory, ejecting the playback disc, and powering off the player's power supply.Then, the disc is reinstalled in the player and playback begins. By operating the button, the installed disc will be played from the beginning of the disc,
In addition, by operating the pause button in the playback time state, if the installed disc matches the identification data stored in the memory, playback of the installed disc will start from the playback interruption address position stored in the memory, and the indicator will turn off. It is characterized by performing a series of playback restart operations.

According to the method of the present invention, the driver can selectively operate either the play button or the pause button to change the playback position of the disc. It becomes possible to arbitrarily start playback from the beginning of the disc or from the address position where playback was interrupted last time.

As a result, with a simple button operation, the driver can start playing the disc from the position where the previous playback was interrupted, just like with a cassette tape. It is now possible to listen to recorded music evenly.

Further, according to the present invention, since the lighting of the indicator indicates the state of writing and storing the identification data of the playback disc and the playback interruption address in the memory, the driver writes the data into the memory based on the lighting of the indicator. By checking this, it is possible to reliably set the playback start position described above, that is, to operate the button to select the beginning of the song.

Example Next, preferred embodiments of the present invention will be described based on the drawings.

FIG. 1 shows a commonly used digital audio disc (DAD), which has disc-specific identification data, the number of recorded songs, and the address of the beginning of a famous song in the lead-in area 100 at the center of the disc. etc. are stored as digital signals. Predetermined music information is written and stored in the spiral rack A provided outside the lead-in portion 100 as a digital signal, and the information can be read out using optical means. It becomes possible to output the music information written and stored on the disc as audio.

FIG. 2 shows a preferred embodiment of a DAD player to which the method of the present invention is applied, and the player of the embodiment includes:
An operation panel 10, a power supply circuit 12, a control circuit 14, and a reproduction mechanism 1 that are driven in response to operations on the operation panel 10.
It is formed from 6.

Here, the operation panel 10 is generally installed in a position where the driver can easily operate it, for example, near the console box of the vehicle. button 22
b1 Bose button 22c1 A function key array 22 including the Bose button, an indicator 24, and a display section 26 are provided.

Here, the power switch 20 is turned on when a disc sensor 28, which will be described later, detects that a disc is inserted into the player, and electrically connects the battery power supply and the power supply circuit 12.

The power supply circuit 12 is activated by this, converts the input from the battery power supply into a predetermined voltage, and applies the input voltage to the operation panel 10. The signal is supplied to the control circuit 14 and the reproduction mechanism 16, respectively.

The control circuit 14 also includes a CPU 30 and a RAM 32, and includes a function key array 22 on a 10-tatami operation panel.
Based on the operation and the signal from the reproducing mechanism 16, the reproducing mechanism 16 is controlled according to flowchart 1 to shown in FIG.

Then, the identification data of the reproduction disc and the reproduction interruption address are written and stored in the RAM 32.

Here, the playback interruption address indicates the playback interruption position of the playback disc, and indicates the position of the pickup that falls immediately after the playback of the playback disc is interrupted, or the playback elapsed time from the beginning of the disc until the playback is interrupted. Can be easily identified.

Further, the control circuit 14 causes the display unit 26 on the operation panel to display the status of the disc being played, for example, the station number of the music being played, in accordance with information input from the playback mechanism 16.

Furthermore, the playback mechanism 16 of the embodiment performs rotational driving of the disk, control of the position of the pickup, signal processing extracted from the pickup data, etc. based on the control signal from the control circuit 14, and the music signal of the playback disk is transmitted from a speaker (not shown). is configured to output.

Further, a disc sensor 28 is provided within the playback mechanism 16 to detect the attachment of a disc to the player.
The cough disk sensor 28 is configured to turn on the power switch 2o on the operation panel 10 by detecting attachment of the disk to the play A7.

FIG. 3 shows a preferred embodiment of the method of operating a vehicle DAD player according to the present invention.

In this embodiment, when a disc is first installed in the player, the disc sensor 28 detects this and the N source switch 2 is activated.
0 is turned on and the player enters the playback time state.

If the driver turns on the play button 22a on the operation panel 1° in this playback timing state, the player will start playing the recorded content from the beginning of the disc, and if no other button is operated, the player will continue playing the disc. continues to cover endlessly.

During playback of this disc, the driver presses the eject button 22b.
When the player is turned on, the control circuit 14 causes the playback mechanism 16 to perform the disk editing operations, and then automatically turns off the player power.

Also, during disc playback, the driver will pause "button 22c".
When turned on, the control circuit 14 controls the reproduction mechanism 16 and performs a termination operation consisting of a series of steps described below.

That is, first, the rotation of the disk is stopped, the pickup is returned to its initial position, and the disk playback operation is stopped.

Second, the identification data of the playback disc and the playback interruption address are written and stored in the RAM 32.

Thirdly, when the writing and storage in the RAM 32 is completed, the indicator 24 is turned on to indicate to the driver that the identification data for the reproduction disk and the reproduction interruption address have been written and stored in the RAM 32.

Fourth, eject the playback disc.

Fifth, the player power is automatically turned off, leaving the backup power supply to the RΔM 32 and the indicator 24.

The series of termination operations consisting of the first to fifth steps above are as follows:
Actually, the process ends within a predetermined short time from when the pause button 22c is turned on.

Then, when the disk is inserted into the play V again, the disk sensor 28 detects this and turns the power switch 20 on.
Turn on the player to control the player to the playback timing state.

When the driver turns on the play button 22a in this playback timing state, the CPU 30 controls the playback mechanism 16 to start playback of the loaded disc from the beginning of the disc.

Further, when the pause button 22c is turned on in the playback time state, the CP LJ 30 reads the identification data of the attached disk from the glue-in portion 100, and the read data is already written and stored in the RAM 32. It is determined whether or not it matches the disc identification data.

As a result of this determination, if it is determined that the mounted disks are the same, the already stored playback interruption address is read from the 11RAM 32, and playback of the mounted disk is started from this playback interruption address position. Then, after the fourth period of reproduction of the disc, the identification data and reproduction interruption address written and stored in the RAM 32 are cleared, and the indicator 24 is turned off.

In addition, the identification data read from the installed disk is
If it is determined that the identification data does not match the identification data already written and stored in the M32, after the indicator 2/1 blinks, the CPU 30 starts playing the loaded disc from the beginning of the disc, and then similarly writes data in the RAM 32. data is cleared and the indicator 24 is turned off.

As described above, according to the present invention, when the player is in the playback time state with a disc loaded, the play button 22a or the pause button 2 is pressed.
By simply turning on m1, the driver can freely start the playback of the installed disc from the beginning of the disc or from the playback interruption position where the previous playback was interrupted.As a result, even while driving the vehicle, the driver can start playing the installed disc It becomes possible to set the playback start position of the vehicle without disturbing the driver's concentration on driving.

Further, according to the present invention, the γ-
When the data has been written into memory, the indicator 24 lights up to display this to the driver, so the driver can accurately select and operate the play button 22a or pause button 22c based on the lighting display of the indicator 24. Become.

Furthermore, if the type of RAM 32 is J, it may be possible to write and store the reproduction disk identification data and reproduction interruption address for only one disk. In this case, as shown in the flowchart of FIG. 2, if the pause button 22C is turned on during disc playback, the disc identification has already been stored in the RAM 32 before starting the series of ending operations described above. It is determined whether the data and the playback interruption address have been written and stored.

If it is determined that these data are not written in the RAM 32, the same series of termination operations as described above may be performed.

In addition, if it is determined that data has already been written and stored in the RAM 32, simply stop the playback operation of the disk, continue lighting the indicator 24, eject the playback disk, and turn off the power supply of the player 17. Only a series of operations are performed, and no data is written or stored in the RAM 32.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, even when playing a disc while driving a vehicle, the playback start position can be set by a simple operation without disturbing the driver's concentration on driving. becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of a digital audio disc, FIG. 2 is a block diagram showing a preferred embodiment of a vehicle DAC player to which the method of the present invention is applied, and FIG. 3 is a preferred embodiment of the method of the present invention. FIG. 3 is a flowchart diagram without showing a specific example. 228... Play button, 22℃... Pause button, 24... Indicator, 32... RAM0 Agent Patent attorney Kenji Yoshida (1 other person) Figure 1

Claims (1)

[Claims] (1) By operating the pause button during playback of a digital audio disc, the disc playback operation is stopped, the identification data of the playback disc and the playback interruption address are written and stored in the memory, and an indicator indicating that the playback interruption address is written and stored in the memory. A series of termination operations consisting of lighting up, ejecting the playback disc, and powering off the player power are performed, and then the playback of the installed disc is started by operating the play button in the playback state when the disc is inserted into the player again. If the installed disk matches the identification data stored in the memory by starting from the beginning and operating the pause button in the playback time state, playback of the installed disk starts from the playback interruption address position stored in the memory. A method of operating a DAD player for a vehicle, characterized by performing a series of playback restart operations consisting of turning off an indicator.