JPS62259280A - Display method in disk player - Google Patents

Abstract

PURPOSE:To improve the handling of a player by starting the display of prescribed information from the start of reading of information recorded in a lead-in area to inform the setting up status of the player to a user. CONSTITUTION:When a pickup 14 starts reading operation in a focus mode, information recorded in the lead-in area of the disk 3 is started to be read out. So-called TOC information such as the number of musical programs, the total absolute time and the playing time of respective musical programs are recorded in the disk 3, and at the start of playing, the TOC information is read out without fail. Then, the focus mode is turned to a display mode and the setting up status of the player is displayed on a display 24 by a CPU20. Then, the mode is turned to a playing mode and operation such as program selection, scanning and searching are executed in addition to normal playing.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display method in a disc player.

A small digital audio disc with a diameter of approximately 12 cm, called a 1-sized compact disc, has a lead-in area that shows the number of songs recorded on the disc, the absolute time, and the playing time of each song. Information such as
When playing a disc, the recorded information in the lead-in area is always read.

This read recorded information is displayed on the display, but conventionally, at the time of the so-called setup when the reading operation started, there was no read information yet, so nothing was displayed on the display, and when the reading was completed, The information read for the first time was displayed on the display.

For this reason, there is no display for a certain period of time until reading of the recorded information in the lead-in area is completed, so even though the player is in the setup state, the player will not be able to see what operations the player is doing. I had no idea what the situation was.

The present invention has been made in view of the above-mentioned points, and by displaying something on the display until the reading of the recorded information in the lead-in area is completed, the knee If
It is an object of the present invention to provide a display method in a disc player that can notify users that the player is in a set-up state.

The display method in a disc player according to the present invention is characterized in that display of predetermined information fFI is started from the time when reading of the recorded information in the lead-in area is started, and the read information is displayed when the reading operation is finished. It is said that

Dog-Ei-1 Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a schematic perspective view showing the external appearance of a slot in-vehicle autoloading disc player to which the present invention is applied, and FIG. 2 is a schematic configuration diagram showing the internal 4VI structure. First, in FIG. 1, a front panel 2 constituting a part of a housing 1 is provided with a slot 4 extending in the left-right direction in the figure for inserting a disc 3 to be played. For example, the disc 3 contains audio information such as PCM (Pulse Code Modula).
This is a so-called compact disc that is recorded in a compact format, and its outer diameter is approximately 12 cm. A plurality of operation keys are further arranged on the front panel 2 to issue various operation commands to the disc brake 17, such as play start, disc eject, etc., and these keys constitute an operation key group 5. ing.

In FIG. 2, the disk 3 inserted through the slot 4
is positioned at a predetermined position 8 (hereinafter referred to as a slot position) on the tray 6 by a positioning means (not shown), and the disk 3 is supported on the tray 6 with a part of it protruding outside the front panel 2. . The tray 6 is driven by a loading motor 7 as a driving source, a driving force transmission mechanism 8 that transmits the rotational driving force of the motor 7 to the tray 6 as a linear driving force in the horizontal and vertical directions in the figure, and the loaded disk 3 is inserted into the slot. It constitutes a loading mechanism for conveying between the position and a playback position in the housing 1, which will be described later.

In such a loading mechanism, 1 to Raylo carry a disk 3 set in a slot position and move rightward from the solid line position in the figure, and a turntable whose center hole of the disk 3 is fixed to the rotating shaft of a spindle motor 9 is mounted. When reaching the top of 10, it descends directly below, places the disc 3 on the turntable 10, and then lowers it onto the mold.
As shown in the figure, the disc 3 is stopped at a slight distance from the disc surface, and the disc 3 is loaded through the series of operations described above. Disc 3 is turntable 10
The position placed above becomes the playback position described above. Also,
The ejecting operation of the disk 3 is carried out by the reverse rotation of the loading motor, following a path completely opposite to that of the above-mentioned loading operation. The above-mentioned loading in side has been filed by the applicant in Japanese Patent Application Nos. 59-200145 to 200153, and the detailed structure and operation thereof will not be described in detail here.

Various detection switches are provided within the housing 1. First, a disk detection switch 11 is provided to detect that the disk 3 is in the slot position.
When the disk 3 is set in the position, it is turned on, and when the disk 3 is removed from the position, it is turned off. The loading completion detection switch 12 is turned on by engaging the tray 6 after the disc 3 has been placed on the turntable 1o, and detects that the loading operation is completed. In addition, the ejection completion detection switch 13
is turned on by engaging with the tray 6 that has reached the forwardmost position (front panel 2 side) during the eject operation by the loading mechanism, and detects that the eject operation has been completed.

A disk 3 placed on a turntable 10 is rotated by a spindle motor 9, and recorded information is read by an optical pickup 14. The pickup 14 is provided with a key 1 that is movable in the radial direction of the disk 3. The 4T ridge is mounted on a ridge (not shown) and is driven by a carriage motor 15 via a gear mechanism 16. front panel 2
Operation keys arranged in! ! Each signal emitted from T5 and each of the above-mentioned detection switches 11 to 13, etc. is transmitted to the housing 1.
The signal is transmitted to the control system shown in FIG.

FIG. 3 shows the configuration of the control system, which consists of a CPU (central processing unit) 20 that plays a central role in control, a RAM (random access memory) 21 as a storage means, etc. It has a computer configuration. The CPU 20 controls the operation key group 5 and each detection switch 11.
Based on the signals emitted from ~13, etc., the spindle servo circuit 22 that controls the rotational speed of the spindle motor 9, the carriage servo circuit 23 that controls the rotational speed of the carriage motor 15, and the loading motor 7 are driven! 71, a control signal is generated to the motor drive initial circuit 309q at the timing described later, and various displays are made and display data is output to the display 24.

The read information read from the disk 3 by the pickup 14 is demodulated by the signal processing circuit 25 and subjected to signal processing for error correction, and then supplied to the CPU 20.
/A (digital/analog) conversion 2S26 converts it into analog information, passes through the electronic volume circuit 27 and outputs it to the left (
L), right (R>channel) is output as an audio signal. Also, the position of the focal point of the information reading spot emitted from the pickup 14 and converged on the recording surface of the disk 3 in the vertical direction with respect to the recording surface. A focus servo circuit 28 is provided for control, and a tracking servo circuit 29 is provided for controlling the position of the information reading spot in the disk radial direction with respect to the recording track of the disk 3.

The focus servo circuit 28 controls the pickup 14 to perform a focusing operation in response to a command issued from the CPU 20 when starting playback or when the focus is lost during playback. A focus actuator (not shown) built into the pickup 14 is driven and controlled based on a focus error signal generated by a well-known detection method such as the CPLI 20. Send to. On the other hand, the tracking servo circuit 29 supplies a drive signal to a tracking actuator (not shown) built in the pickup 14 in response to a command issued from the CPU 20 during a jump, etc. By supplying a tracking error signal generated by a well-known detection method such as the beam method, the position 1t, lit! of the information reading point in the disk radial direction is determined. Do 0. Note that the tracking error signal is also supplied to the carriage servo circuit 23, and its low frequency component becomes a drive signal for the carriage motor 15 during normal reproduction.

Since this disc player is for use in a vehicle, the CPU 20 is configured to operate using a backup power source, and each mechanical section is configured to operate using a main power source supplied by turning on a so-called accessory switch (not shown) of the JI-Sen vehicle. There is. However, among the mechanical parts, only the 0-ding mechanism including the 0-ding motor 7 and its drive circuit 30 is designed to be able to eject the disk 3 taken into the housing 1 even when the main power is turned off. , and is designed to operate with backup power. An ACC detection circuit 31 is provided for detecting disconnection of the main power supply, and this ACC detection circuit 31 supplies a detection signal to the CPLJ 20 when the main power supply is disconnected.

As shown in FIG. 4, each key in the operation key group 5 includes a volume rUPJ key 50 and a volume [1O
WNJ key 51 and balance rLJ key 52 and balance 1゛R for balancing the volume of left and right channels
] key 53 is included. Processing when these keys are operated is performed by software by the CPU 20.

That is, the CPU 20 sends the electronic volume circuit 27 the volume IUPJ key 50 or the volume rDO
When the WNJ key 51 is operated, data and clocks are sent to increase or decrease the volume of both left and right channels to the same level, and when the balance rLJ key 52 or balance rRJ key 53 is operated, the volume of one channel is increased or decreased. 13 of the other channel and decrease the sound m of the other channel, the detailed processing method will be described later.This change in volume is displayed on the display 24. .

Note that the electronic volume circuit 27 includes, for example, a plurality of resistors connected in series with each other and a plurality of analog switches connected in parallel to each of these resistors. It uses a well-known configuration that performs gffl control by turning it on and off.

Volume rUPJ key 50 and volume IF) OW
Each of the NJ keys 51 has the function of issuing commands to increase and decrease the volume as described above, and both keys 50.5
When 1 is operated twice, change lff1 to 20c [
It also has the function of issuing commands to lower the level by 3 degrees at once.

Next, the operating procedure of this O1 loading disc player executed by the CPU 20 will be explained in FIGS. 6 to 1.
A brief explanation will be given in accordance with the playback order while referring to flowchart 1 in FIG.

First, follow the sequence of loading, playing, and ejecting operations shown in Figure 6, approach 1? 2, when the disk 3 is inserted into the housing 1 through the slot 4 and set in the slot position on the tray 6 as shown in FIG. 2, the disk detection switch 11 is turned on. C
When the PU 20 detects that the disk detection switch 11 is turned on (step 1), it issues a loading command to the loading motor 7 via the motor drive circuit 30. As a result, the loading motor 7 rotates, the loading mechanism is activated, and the loading operation is started (step 2). When the tray 6 carrying the disk 3 moves to the right from the position shown by the solid line in FIG. 2 and reaches above the turntable 10, it descends directly below from that position.
As a result, the disk 3 is moved to the turntable 10 as shown by the two-dot chain line in FIG. The loading operation is completed by the above series of operations. At this time, the loading completion detection switch 12 is turned on. ,CPU
20 detects the completion of loading by the ON output of this loading completion detection switch 12 (step 3).
), and shifts to focus mode for focusing the pickup 14 (step 4).
). This focus mode will be described later.

When the focus is taken in the focus mode, the reading operation of the pickup 14 is started, but before reading the program area, the reading of the recorded information in the lead-in area of the disc 3 is first started (Step 5), and then A transition is made to the play mode (step 7) via the display mode (step 6). TOC read
Information is stored in RAM21. In the lead-in area of the disc, the so-called TOC (Tab
The OC information is recorded, and it is necessary to read this OC information before starting a performance. In the play mode, in addition to normal sequential performance, operations such as program selection, scanning, and search are performed.

When the performance ends and the carriage (not shown) carrying the pickup 14 reaches its movement limit position and a detection switch (not shown) is turned on, at this point the CPtJ 20 detects that the performance has ended (step 8). An eject command is issued to the loading motor 7 via the motor drive circuit 30. As a result, the loading motor 7 becomes 0.
- Eject by rotating in the opposite direction to the loading operation]・Dynamic n
” (step 9). This eject 1~IJJ
In this operation, the tray 6 carries out the disk 3 from the playback position to the slot position by following the completely opposite process to the loading operation described above, and when the tray 6 reaches the forwardmost position shown by the solid line in FIG. 2, the eject operation is started. When this is completed, the ejection completion detection switch 13 is turned on.

The CPU 20 detects ejection completion by the ON output of the ejection completion detection switch 13 (step 10), and then judges whether or not there is a manual reload command for keys in the operation key group 5 (step 11).
If there is a reload command, the motor drive circuit 30
A loading command is issued to the loading motor 7 via the controller to start the loading operation (step 12).
).

When the completion of the loading operation is detected (step 13)
, CPtJ20 is the same disc as the previous one, and the TOC information is stored in the RAM 21 and is valid, so it is necessary to immediately shift to the play mode (step 7) without reading the TOC information. Control.

After the ejection is completed, if it is determined in step 11 that there is no reload command, then it is determined whether the disk 3 has been removed from the slot position (step 14).

To remove this disk 3, press the disk detection switch 11.
It can be detected by the off output of When it is determined in step 14 that the disk 3 has been removed from the slot position,
The TOC information stored in the RAM 21 is invalidated (step 15), and an invalid flag is set. With the above steps, the series of operations of loading, playing, and ejecting is completed.

In the series of operations described above, the TOC information stored in the RAM 21 is not invalidated when the eject operation of the disk 3 is completed, but is invalidated only when the disk 3 is removed from the slot position. Therefore, when the ejected disc is to be played again, there is no need to read the TOC information again, and the playing operation can be smoothly performed.

Next, focus mode (step 4) in Fig. 6
This will be explained according to the flowchart in FIG.

The CPLI 20 first issues a command to start a focusing operation to the focus servo circuit 28, and executes step 20.
), and simultaneously starts a timer for a certain period of time Ta built into the CPtJ20 (step 21).Then, it is determined whether or not the focus servo is locked in (step 22), and if it is locked in, the timer is cleared. Step 23), and then return to the main screen in FIG.

Note that it is possible to determine whether or not the focus servo is locked in by using a lock-in signal generated from the focus servo circuit 28 when the focus servo is locked in.

If it is determined in step 22 that lock-in is not achieved, it is determined whether a certain period of time Ta has elapsed (step 24), and if it has elapsed, the motor is First circuit 30
An eject command is issued to the loading motor 7 via the (step 25). That is, if focus cannot be obtained due to scratches or dirt on the disc, or because the disc is inserted upside down, the disc is reset after a certain period of time Ta has elapsed.

After the eject command, it is determined whether or not there is a manual reload command in the operation key group 5 (step 26).
), if there is no reload command, the completion of the reload i is detected (step 27), and the operation is stopped thereafter. If it is determined in step 26 that there is a reload command, the key input for that command is ignored (step 28), and the process then proceeds to step 27.

In other words, if the focus cannot be taken due to scratches or dirt on the disc, or the disc has been inserted backwards, and the disc is being ejected, the disc loading command is not received and the ejecting operation shifts to the loading operation. It is prohibited to do so. As a result, the user can immediately determine if the disc has been inserted upside down, and if the disc is scratched or dirty, it is possible to prevent the disc from being played.

Next, the display mode (step 6) in FIG. 6 will be explained according to the flowchart in FIG. 8.

In the main flow of FIG. 6, reading of TOC information is started (step 5), and then the main display mode is entered. 7 as shown in Figure 5
1t? in the center of the segment I display? Use the component to flash r--=-J (step 30), and
When reading of OC information is completed, step 31), CP
Fixed time Tb built into U20 (for example, 5
A timer (seconds) is started (step 32), and the TOC information read at the same time, that is, the number of songs, absolute time, etc., is displayed (step 33). In addition, in the Flow 1 sheet of FIG. 6, for convenience of explanation, the display mode and the play mode are shown as separate modes, but after reading the TOC information in the display mode, the play operation begins.

Normally, during the so-called set-up period, from when the TOC information is read after the disc has been loaded to when the play operation begins, the TOC information has not yet been read and there is no data that can be displayed on the display 24, so nothing can be displayed to the user. may not be able to determine what operating state the player is in. However, as described above, by displaying the number M even without TOC information, it is possible to notify the user that the player is in the setup state. Note that the display information in this case is not limited to the blinking display of r----J using a 7-segment display.

If it is detected that another mode has been manually specified by keys such as track ±, FF, REV, etc. in operation key 5 while the number of songs and absolute time etc. are being displayed, (
Step 34), Clear the timer Step 35),
At the same time, performance (playback) status information, that is, track number (
The track number), the elapsed time (minutes and seconds) from the start of the performance of each song, etc. are displayed (step 36).

This performance status information is recorded in the Q channel of the subcode signal in the so-called CD format, and can be detected from the information read by the pickup 14. Further, in a state in which the number of songs, absolute time, etc. are displayed, if there is no other mode specification and it is determined that the display state has elapsed for a certain period of time Tb (step 37), the process moves to step 36 and the above-mentioned Switch to the display of performance status information.

That is, the read TOC information is displayed for a certain period of time Tb, and if another mode is specified before the certain period of time Tb has elapsed, the display switches to the performance status information at that point, and the certain period of time Tb has elapsed. The display then automatically switches to displaying performance status information.

Next, the operation when the focus goes out during play will be explained according to the flowchart of FIG.

The CPU 20 constantly monitors the lock-in signal generated from the focus servo circuit 28 in the lock-in state of the Nervo loop in a predetermined cycle, and when it detects that the lock-in signal disappears, it determines that the focus has been lost, and activates the focus servo circuit. A command to start the focusing operation is issued to the CPU 28 (step 40), and at the same time, a timer for a certain period of time Tb built into the CPU 20 is started (step 41). Then, it is determined whether there is a manual disc eject command or a stop command in the operation key group 24 (step 42), and if there is no key, it is determined whether the focus servo is locked in (step 43). . When the focus servo is locked in, that is, the focus is achieved, the timer is cleared (step 44), and the play operation is immediately started again. If the lock-in signal of the focus servo is not obtained within the fixed time TC (step 45), the focus cannot be obtained in the current focusing operation at that point (focus NG).
As a result, the NG counter built into the CPU 20 is incremented (step 46). Then, it is determined whether or not the counter I-II N has reached a predetermined value, for example, "16" (Step 47). If N≠16, the process returns to Step 40 and the focusing operation is repeated at 1g.
Repeat the focusing operation up to 16 times in a row until the focus is achieved.

If focus cannot be achieved even after repeating the focusing operation 16 times in a row, the NG counter is cleared (step 48), and a stop command is issued after turning L (step 49). Here, the stop state refers to a state in which the disc is at the playback position, the main power is cut off, and each 111v4 section stops operating. In this stop state, when it is detected that a play command has been issued by one person at the operation key P: ¥5 (step 50), step 40
to start the focusing operation again.

In this way, by limiting the number of consecutive focusing operations to i and lI, it is possible to reduce the load on the servo system including the focus actuator and the like, and to prevent the pickup 14 from generating heat.

Furthermore, if a disc eject command or stop command is issued during the focusing operation (step 42),
The process moves to step 48, where the NG counter is cleared, and then the process is brought to a stop state.

Note that if there is a disc eject command, the process goes through a stop state and then moves to a disc eject operation.

In this way, by clearing the NG counter when there is a command or a stop command, even if you move from the stop state to the play state and perform the focusing operation again, it will continue up to 16 times in a row until the focus is achieved. This means that the focusing operation can be repeated.

Next, the operation when the accessory switch of the car is turned off during play as a special operation will be explained according to the flowchart of FIG. 10.

The CPtJ20 constantly monitors the detection output of the Acc detection circuit 31 in a predetermined cycle, and when it detects disconnection of the main power supply (ACC) based on the detection output (step 60), it then manually presses the key in the operation key group 5. In step 61), it is determined whether or not there is an eject command, and if there is an eject command, an eject command is sent to the zero digitizer 7 via the motor drive circuit 30 in order to eject the disc at the playback position. (Step 62)
. After the eject command is issued, it is determined whether or not there is an O-eject command using the keys in the operation key group 5, such as by manual input.Step 6
3) If there is no reload command, the completion of ejection is detected (step 64), and the operation is stopped thereafter. If it is determined in step 63 that there is a reload command, the key input for that command is ignored and the process proceeds to step 65), followed by step 64.

In other words, while the disk is being ejected due to the main power being cut off, the disk paste load command will not be accepted.
This prohibits the transition from the loading operation to the loading operation. Thereby, the loading operation and the ejecting operation are not repeated, and a drop in battery voltage can be prevented.

Next, in the operation key group 5, select the volume [UPI, r
DOWNJ key 50.51 and balance rLJ, rRJ
A key processing method executed by the CPIJ 20 when the keys 52 and 53 are operated will be described.

First, volume rLJPJ, rDOWNJ key 50.
51, as mentioned earlier, these keys have the function of commanding volume increase and decrease, respectively, and when both keys are operated together (so-called double press), the volume increases to 20, for example. It also has the function of issuing commands to lower the level at once.
The explanation will be made according to 70-V-t in the figure.

The CPtJ 20 constantly monitors whether any key in the operation key group 5 is pressed in a predetermined cycle (step 70), and if any key is pressed, the key is pressed in the previous cycle. It is determined whether the key is the same as (step 71). If the key is different from the previous key, the chattering counter built into the CPtJ20 is started (step 72), and then the CPtJ20
Step 73 to clear the double press timer built into the
), and then turns off the 2-key press check flag (step 74). In addition, the chattering counter 1 is a counter that absorbs chattering during key operation to prevent malfunctions, and the double press timer monitors double presses of the key. f! The timer for - and the double press check flag are flags that indicate that the operated key is a double press key.

If it is determined in step 71 that it is the same key as the previous time, it is determined whether the chattering counter has exceeded the count (step 75), and if it has exceeded the count, it is determined whether the double check flag is on or not. (step 76). In the previous cycle, the double press check flag was turned off in step 74, so next, in step 77), it was determined whether the key being pressed was the 2 middle press key or not. If so, start the double press timer (step 78), and turn on the 2 skewers 1 check flag (step 79).
).

In this way, the double press timer starts when either of the two double press keys is pressed, and during the operation period of the timer, the 1!1 key that is not pressed at step 70 If it is determined that the
Make sure that the double-press check flag is on [,! Then, the key is activated (step 81).

Similarly, during the operation period of the double-press timer, it is determined whether the timer has timed out or not via step 76 (step 82), and if the timer has timed out, the key being pressed at that time is made valid (step 82). Step 81)
. If the time has not exceeded, it is determined whether or not the key has been pressed twice (step 83); if it has been pressed twice, the process moves to step 81, where both keys are validated and the key is pressed twice. I will accept the request.

That is, when the double press key is pressed, the CPtJ20 operates the double press timer, and during the timer operation period, either of the two double press keys is pressed. When the key is pressed, the key is activated by detecting that the key has been moved forward, and when both keys are pressed together, the activation is activated as a double press. When one of the two keys is pressed, the process is performed to accept that key. After pressing each key, data and a clock are sent to the electronic volume 27 (see FIG. 4) to execute the function of each key or the double press function.

In this way, by providing a double press timer and detecting that one key is pressed and then released during the timer's operating period, it is possible to perform one key process even during the timer's operating period. , it is possible to quickly respond to rapid repeated key operations.

In this embodiment, the case of the volume l'tJPJ and rDOWNJ keys 50.51 has been described as the key processing method for double-pressing keys, but the method is not limited to these keys. In addition, the applicable equipment is
It is not limited to this disc player.

Next, a processing method for adjusting the balance between the left and right channels using the balance rLJ and rRJ keys 52 and 53 will be described with reference to the flowchart shown in FIG.

The CPIJ 20 constantly monitors whether any key in the operation key group 5 is pressed in a predetermined cycle, and if pressed, determines whether the key is the balance rLJ or I[J key 52 or 53. (Step 90)
. When any key is pressed, key identification data corresponding to that key is stored in a register built into the CPU 20. Balance IJ, rRJ key 52°5
If none of the above is found, the register is reset (step 91), and the process waits for the next subsequent cycle.

If it is determined in step 90 that the balance rLJ or rRJ key 52 or 53 is pressed, the key identification data stored in the previous register and the current key identification data are compared to determine if the key was previously pressed. It is determined whether it is the same key as in the cycle (step 92).
). Based on this determination, it is possible to determine whether the same key is being pressed continuously. If it is not a continuous press, the key identification data of the register is rewritten (step 93).
), then it is determined whether the key is the balance rLJ key 52 (step 94). Balance f'LJ key 52
, then increase the sound 6 of the L channel and R
In order to reduce the volume of the channel, data and clock are sent to the electronic volume 27 (see FIG. 4) (step 95), and in the case of the balance rRJ key 53, the opposite is controlled (step 96).

If it is determined in step 92 that it is a continuous press, it is determined whether the Mm balance of the left and right channels is achieved (center balance state) (step 97), and if the balance is not achieved, the process proceeds to step 94 and described above. Perform the same operation as above, and when the balance is achieved, stop attaching the receiver of continuous push at that point. The center balance state can be detected by comparing the left and right channel data sent to the electronic volume circuit 27 and checking whether the two data match.

In this way, when the balance key is pressed continuously and the center balance state is reached, the so-called center click effect can be obtained by stopping the continuous pressing at that point. The center balance state can be maintained reliably, and operation can be performed without looking at the display. Therefore, it is particularly useful for in-vehicle equipment that is often operated without checking the display.

In this embodiment, the above-described volume balance processing method is applied to an electronic volume circuit in a disc player, but the invention is not limited to this, and it can be applied to a normal tone control circuit, fader control circuit, etc. It can also be applied to

As explained above, according to the display method according to the present invention,
By starting to display predetermined information from the time when reading the recorded information in the lead-in area starts, and by displaying the read information at the time when the reading operation is finished, the display of the predetermined information can be started after reading the recorded information in the lead-in area. Since the user can be immediately notified that the player is in the setup state, the usability of the player can be improved.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing the external appearance of an in-vehicle autoloading disc player according to the present invention, Fig. 2 is a schematic configuration diagram showing its internal structure, and Fig. 3 is a sized block diagram showing the circuit configuration of the v control system. , FIG. 4 is a block diagram showing a specific configuration of a part of the circuit in FIG. 3, FIG. 5 is a diagram showing an example of a display method, and FIGS. 6 to 12 show each operation procedure executed by the CPU. Show flowch t! - It is. Explanation of symbols of main parts 1... Housing 3... Disc 4... Slot 5... Operation key group 7... Loading motor 9 ... Spindle motor 11 ... Disc detection switch 12 ...
・Loading completion detection switch 13...Ejection completion detection switch 14...Pickup

Claims (1)

[Claims] A display method in a disc player that reads recorded information in a lead-in area of a disc during playback, and then shifts to playback of recorded information in a program area, the display method comprising reading recorded information in the lead-in area. Start displaying the specified information from the moment you start
A display method characterized by displaying the read information at the time when the reading is completed.