JP2000163854A - Disk reproducing device and disk recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize visually/audibly that a tray is empty by operating a tray transfer means and a sound signal generation means when a disk detection sensor detects that disk is not held yet showing the empty of the disk, moving the empty tray to an eject position and sounding a speaker. SOLUTION: The disk detection sensor 4 outputs a detection signal of no disk when a placing surface is empty. A system controller 16 operates a sound signal generation circuit 9 when a CD1 is empty is judged, and operates a loading mechanism part 3. Further, when a mode becomes a continuous performance mode by setting of a user, when reproduction of all CD1 is ended, the disk detection sensor 4 outputs the detection signal of no disk, and the system controller 16 operates the sound signal generation circuit 9 and the loading mechanism part 3. A message of (Please, input a disk to a tray) is sounded. A rotary tray moves an empty slide tray to the eject position to open the tray.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player in which a tray for mounting a disc is provided so as to be able to be taken in and out of a player body, and more particularly to a disc reproducing apparatus for notifying that a tray is empty when used. The present invention relates to a disk recording / reproducing device.

[0002]

2. Description of the Related Art Among AV devices for reproducing information recorded on an optical disk, a disk player for reproducing information recorded on a compact disk (CD) or the like has become widespread. This disc player is usually provided with a slide tray that can be freely inserted into and removed from the player body. When the slide tray is exposed from the player body,
D can be held or exchanged. Then, when reproducing the information of the optical disk, when a reproduction key provided on the player main body or the remote controller is operated, the reproducing operation is started and the disk reading head is set at the disk reproducing position.

When the reproduction key is operated in a state where the optical disc is not held in the slide tray, the user may be confused because the reproduction is not started.
For this reason, it is common to display "NO DISC" on the LCD display or the like to notify that the slide tray is empty. As another example of notifying that a recording medium is not mounted on an AV device, a digital audio tape recorder (DAT) is known (actually disclosed in Japanese Unexamined Utility Model Publication No. Hei 8-
No. 7544). In this DAT, when the power supply is turned on in a state where the tray holding the digital audio tape is pulled out to the front of the main body, the tray is stored in the main body by the first tray closing means. Further, when a sensor detects that the tape is not mounted when any of the operation keys is operated, the tray is pulled out to the front of the main body by the tray opening means. Further, when any of the operation keys is operated with the tray pulled out to the front of the main body, the tray is stored in the main body by the second tray closing means. Therefore, unlike the conventional AV equipment, there is no need to search for and operate the open / close key, and the operability can be improved.

[0004]

However, when the conventional optical disc player does not hold the optical disc in the slide tray of the player body, the above-mentioned "NO"
DISC ", but it was difficult for the user to notice with the simple display of characters.
If any of the operation keys is operated and the tape is not mounted, the user can indicate that the tray pulled out to the front of the main unit is empty, but the user is operating the remote control In some cases, it may not be known that the tray has moved to the front of the main body depending on the operation position. For this reason, since the operation according to the operation key is not started, it takes time for the user to simply notice that the tray is empty in spite of the malfunction, and the user remains unfriendly. It had been.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a disk reproducing apparatus and a disk recording / reproducing apparatus capable of visually and audibly knowing that the tray is empty when used. The purpose is.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a tray provided with a holding portion for holding a disk, and the tray is connected to a tray through an opening of a panel. Tray transport means for moving forward and backward from a play position inside the panel to an eject position outside the panel, a disk detection sensor for detecting whether or not a disk is held in the holding portion of the tray, and recording information of the disk A reproduction signal for outputting a command signal for reproducing the disc, a sound signal generating means for outputting a sound signal for emitting a sound for prompting the holding of the disc to the holding portion of the tray from a speaker, and a reproduction command signal transmitted from the reproduction key. When the disc detection sensor detects that the disc is not held, indicating that the tray is empty, the tray transport means and the audio signal generation means. At the same time is operated to move the empty tray to the eject position, is characterized in that and a control means for performing control to sound is output from the speaker. According to a second aspect of the present invention, a tray provided with a holding portion for holding a disk, and the tray is moved back and forth between a play position inside the panel and an eject position outside the panel through an opening in the panel. Tray transport means, a disk detection sensor for detecting whether or not a disk is held in the tray holding unit, a recording key for outputting a command signal for recording information on the disk, and a disk for the tray holding unit A sound signal generating means for outputting a sound signal for emitting a sound for prompting the holding of the disc from the speaker, and when a recording command signal is transmitted from the recording key, the disc detection sensor indicates that the tray is empty. Is detected, the tray transport means and the audio signal generating means are operated to move the empty tray to the eject position. At the same time, is characterized in that and a control means for performing control to sound is output from the speaker. According to a third aspect of the present invention, the holding portion of the tray includes:
A turntable for holding a plurality of discs, wherein a reproduction command signal is sent out, the turntable is rotated when there is no disc in the reproducing unit, and the tray is moved to the eject position when there is no disc at all. It is characterized by the following. The invention according to claim 4 includes a turntable that holds a plurality of disks,
In a mode in which a plurality of discs are continuously played, the tray is moved to an eject position where all discs are not present.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an electric block diagram showing a disk reproducing apparatus according to the present invention. This disc reproducing apparatus is a single type disc player that reproduces acoustic information recorded on CD1. The CD 1 set in the disk player has digital information of audio information of a plurality of music pieces recorded in an audio recording area on an inner peripheral side of a spirally formed track. Also, a lead-in area of the audio recording area and a lead-in area of the video recording area are formed on the track of the CD1, and each of these lead-in areas is associated with the recorded contents of each recording area. A TOC area for recording the additional information is provided.

The disk player includes a loading mechanism 3, a CD reproducing mechanism 4, a mechanical control circuit (not shown) and a system controller 16 as main parts, and the like. It is configured so that the tray can be taken in and out, and the CD1 can be exchanged. Although this tray is not shown, one CD1
The loading mechanism 3 has a loading surface for holding
To move forward and backward. The loading mechanism 3 is a means for transporting the tray, and receives a control signal from a mechanical control circuit to move the tray toward the front of the main body 2 (an unloading position indicated by a solid line 1 in FIG. 1). To the play position (the loading position indicated by the imaginary line 1 in FIG. 1) inside the main body 2. In this example, the tray is stopped at the play position when the power of the disc player is turned off, the open / close key on the front panel is operated at the time of power on, and the tray is returned from the play position to the eject position when an open command is issued. It is configured to move. In the vicinity of the play position, a disk detection sensor 4 including a photo sensor and the like is provided. The disc detection sensor 4 outputs a detection signal indicating that there is no disc when the CD 1 is not held on the tray that has moved to the play position. On the other hand, when CD1 is held on the tray, no detection signal is output.

The CD reproducing mechanism 4 reproduces the recorded information of the CD 1, and each part operates according to a control signal from a mechanical control circuit. That is, the spindle motor is driven to rotate while the CD 1 is set on the tray. A pickup for reading and reproducing information by irradiating the recording surface of the CD 1 with a light beam is disposed at one side of the spindle motor. This pickup has an optical system such as a laser diode and an objective lens, and is driven linearly by a drive mechanism (not shown) to drive a CD.
The information read from 1 is supplied to the mechanical control circuit and the reproduction signal processing circuit 6. The mechanical control circuit includes a servo circuit that controls the operation of the loading mechanism unit 3 and the rotation speed of the spindle motor.
From the control signal. This mechanical control circuit
While detecting the rotation speed of the spindle motor with a rotary encoder (not shown), the C is detected based on the disk radial position information supplied from the system controller 16.
The spindle motor is controlled so that the linear velocity of the pickup with respect to D1 becomes constant.

The reproduction signal processing circuit 6 processes reproduction data read by the pickup, extracts and arranges required data, and performs error correction processing as necessary. This reproduction signal processing circuit 6
Is converted into an analog signal by a D / A converter (not shown) and sent to an audio control circuit (audio CTL circuit) 7. The output of the audio CTL circuit 7 is supplied to an audio output terminal, and audio is output from a stereo speaker 8 connected to the audio output terminal. The output of the audio signal generation circuit 9 is also guided to the stereo speaker 8. The voice signal generation circuit 9 uses a voice synthesis analysis IC, generates a specific voice message for prompting the CD 1 to be held in the tray, and outputs the voice signal. In this example, the voice message "Please insert a disc in the tray" is repeated several times.

The data processed by the reproduction signal processing circuit 6 includes additional information (Q) recorded in the TOC area.
The sub-code of the channel is transmitted to the system controller 16 and then stored in the TOC memory in the memory 15. The additional information and the like stored in the TOC memory are stored in the system controller 1 as needed.
6 and sent to the display processing circuit 10.
The display unit 11 is connected to the display processing circuit 10 so as to display information on each music piece. Various settings and selection operations by the user are performed by the key input unit 12 or the remote controller 13. The key input unit 12 includes a power key for normal operation, a play key,
A stop key, a fast forward key, a fast rewind key, an up / down key for volume control, and the like are provided. When any key is pressed, a signal corresponding to the operation content is sent to the system controller 16. The remote controller 13 also has the same keys as the key input unit 12, and when an operation signal is output in accordance with the key operation, the operation signal is received by the reception unit 14 and transmitted to the system controller 16. .

The system controller 16 has an RO
A microcomputer including an M, a RAM, and a CPU, which is connected unidirectionally or bidirectionally in accordance with the functions of the respective circuits. This system controller 1
Numeral 6 controls the operation of the entire disc player, shifts to a predetermined mode based on a command signal transmitted from the key input unit 12 or the remote controller 13, and executes a reproduction operation, a display operation, and the like of the CD 1. . When a reproduction command signal is transmitted from the reproduction key and a detection signal indicating that there is no disk indicating that the tray is empty is transmitted from the disk detection sensor 4, the loading mechanism unit 3 is activated.
In addition, the audio signal generating circuit 9 is operated to move the empty tray to the eject position, and at the same time, control is performed to emit sound from the speaker 8.

Next, the operation of the disc player will be described with reference to the flowchart of FIG.
First, when the user turns on the power key of the key input unit 13, the system controller 16 determines whether the play key has been operated (step S11). Here, when the user operates the play key, it is determined whether or not the disk detection sensor 4 outputs a detection signal indicating that there is no disk (step S12). At this time, if a detection signal indicating that there is no disk is input to the system controller 16, the audio signal generation circuit 9 is operated, and a command signal is sent to the mechanical control unit to operate the loading mechanism unit 3 (step S13, S14). Along with this, an audio signal is output from the audio signal generation circuit 9 and transmitted to the speaker 8 side. Therefore, the speaker 8 emits a voice message "Please put a disc in the tray." Also, the loading mechanism 3
Move the empty tray to the eject position and open the tray. For this reason, the user can hear the voice message to know that CD1 is not held in the tray, and can clearly see that the tray is empty by looking at the tray protruding from the front of the panel. .

On the other hand, when the user operates the play key and the detection signal is not input from the disk detection sensor 4, the system controller 16 shifts to the reproduction mode (step S15). Along with this, when the loading mechanism 3 drives the spindle motor 3 to rotate,
The pickup 4 moves to the recording start position of the CD 1 (step S16). When the recorded information of the track is read, it is sent to the reproduction signal processing circuit 6. The output of the playback signal processing circuit 6 is sent to the audio CTL circuit 7 and the system controller 16, respectively, and the playback music is emitted from the speaker 8 (step S17). When the information reproduction of the CD 1 is completed (step S18) and the user turns off the power when the music is no longer emitted from the speaker 8, all the operations of the disc player are completed.

Although the above-described disc player has described an example in which one CD 1 is placed on a tray to reproduce music, an automatic player that places a plurality of CDs on a tray and continuously reproduces music is described. It can be applied to change type. Such an auto change type is different from the single type disc player in that a plurality of discs are handled, but other configurations are substantially the same. That is, the auto-change type disc player is provided with a slide tray which reciprocates from the eject position to the play position in the main body. A disk-shaped rotary tray on which a plurality of CDs are placed is rotatably disposed on the slide tray. And the aforementioned mechanical control circuit,
By operating the loading mechanism and the CD playback mechanism, the disk mounting surface of the rotary tray and the pickup are simultaneously set at the playback position of the CD, and the CD is played.
Is reproduced. Further, the disk detection sensor is provided near the reproduction position of the CD, detects whether or not the CD is placed on the rotary tray, and outputs a detection signal when there is no CD. .

A system controller for controlling the disk player operates a circuit section in response to a signal from a disk detection sensor, a key input unit or a remote controller to move a slide tray or reproduce information recorded on a CD. It has a configuration. If the disc player is a karaoke or CD component capable of continuously playing a plurality of discs, the system controller determines that no CD is placed on the rotary tray, or that there is no CD in the continuous play mode. Control is performed to move the slide tray to the eject position when the slide tray is ejected. In other words, when the user operates the play key after turning on the power key of the key input unit, if the disk detection sensor outputs a detection signal indicating that there is no disk, the system controller rotates the turntable. With this rotation, the respective mounting surfaces of the turntable are sequentially arranged at the reproduction position of the CD, so that when the mounting surface is empty, a detection signal indicating that there is no disk is output from the disk detection sensor.

When the system controller determines that there is no CD at the time when the turntable makes one round, the system controller operates the audio signal generation circuit and also operates the loading mechanism. In addition, when the continuous play mode is set by the user's selection, when the reproduction of all CDs is completed, a detection signal indicating that there is no disk is output from the disk detection sensor, and the audio signal generation circuit and the loading mechanism are operated. Let it. As a result, a voice message "Please put a disc in the tray." Is repeatedly emitted from the speaker. Also, the rotary tray moves the empty slide tray to the eject position to open the tray. Therefore, the user can easily know that the air conditioner is empty by looking at the rotary tray projecting from the front of the panel together with the voice message.

In each of the above embodiments, the CD
Although the disk player for reproducing the recorded information has been described, the present invention can also be applied to a disk recording / reproducing apparatus capable of recording information on a CD. This disc recording / reproducing apparatus has substantially the same configuration as that of the single type disc player, but has a key input unit and a remote control provided with a record key for outputting a command signal for recording information on a CD. In addition, an optical recording head is provided together with the pickup as information recording means for the CD. Furthermore, a CD recording mechanism for driving an optical recording head,
A recording signal processing circuit and the like connected to the CD recording mechanism and the system controller are also provided. According to this disk recording / reproducing apparatus, when the user turns on the power key of the key input unit and then operates the record key,
When the disk detection sensor outputs a detection signal indicating that there is no disk, the audio signal generation circuit is operated and the loading mechanism is operated.

As a result, a voice message "Please insert a disc into the tray." Is emitted from the speaker. Further, the empty tray is moved to the eject position to open the tray. Thus, the user can clearly know that the tray is empty by looking at the tray protruding from the front of the panel together with the voice message. In addition,
In the above embodiment, the case where the music recorded on the CD is reproduced and listened to has been described.
As in the case of I, the present invention can be widely applied to AV devices which reproduce information by setting various optical disks on which video / audio information is recorded.

[0020]

As described above, according to the first aspect of the present invention, when a reproduction command signal is transmitted from the reproduction key, the disk detection sensor detects that the disk is not held, indicating that the tray is empty. When detected, the empty tray is moved to the eject position, and at the same time, a sound prompting the user to hold the disc is emitted from the speaker, so that the user can visually and audibly know that the disc is not held in the tray. There is an effect that can be done. Further, the invention according to claim 2 is that, when a recording command signal is transmitted from the recording key and the disk detection sensor detects that the disk is not held indicating that the tray is empty, the empty tray is moved to the eject position. At the same time, the sound for prompting the user to hold the disc is emitted from the speaker, so that the user can visually and audibly know that the disc is not held in the tray. According to a third aspect of the present invention, an auto-change type disc reproducing apparatus is provided in which the turntable is rotated when there is no disc in the reproducing section, and the tray is moved to the eject position when there is no disc. There is an advantage that the user can easily know that the disk is not held when used. According to the fourth aspect of the present invention, in the case of a mode in which a plurality of discs are continuously played, the tray is moved to the eject position where all the discs are absent, so that a disc reproducing apparatus such as a karaoke or CD component is used. In this case, there is an advantage that the user can easily know that there is no disk.

[Brief description of the drawings]

FIG. 1 is an electric block diagram showing a disk reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the disc reproducing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disk 3 Tray transport means 4 Disk detection sensor 8 Speaker 9 Audio signal generation means 16 Control means

Claims (4)

[Claims] A tray provided with a holding portion for holding a disc; tray transport means for moving the tray forward and backward from a play position inside the panel to an eject position outside the panel through an opening in the panel; A disc detection sensor for detecting whether or not a disc is held in the holding portion of the tray, a playback key for outputting a command signal for playing back the recorded information of the disc, and a sound for prompting the holding portion of the tray to hold the disc; Sound signal generating means for outputting a sound signal for emitting a sound from a speaker, and when a reproduction command signal is transmitted from the reproduction key, the disc detection sensor detects that the disc is not held indicating that the tray is empty. At the same time as moving the empty tray to the eject position by operating the tray conveying means and the audio signal generating means, A disk reproducing apparatus comprising: a control unit that controls sound emission from a speaker. 2. A tray provided with a holding portion for holding a disc; tray transport means for moving the tray forward and backward from a play position inside the panel to an eject position outside the panel through an opening in the panel; A disc detection sensor for detecting whether or not the disc is held in the holding portion of the tray; a recording key for outputting a command signal for recording information on the disc; and a sound for prompting the holding portion of the tray to hold the disc. Audio signal generating means for outputting an audio signal to be emitted from a speaker, and when a recording command signal is transmitted from the recording key, when the disk detection sensor detects that the tray is empty, indicating that the tray is empty,
Control means for operating the tray transport means and the audio signal generating means to move the empty tray to the eject position and, at the same time, controlling to emit sound from the speaker. Disk recording and playback device. 3. The tray holding section has a turntable for holding a plurality of discs. When a reproduction command signal is sent out, the turntable is rotated when there is no disc in the reproduction section, and the disc is completely turned off. 2. The disc reproducing apparatus according to claim 1, wherein the tray is moved to an eject position when there is no disc. 4. The apparatus according to claim 1, further comprising a turntable for holding a plurality of discs, wherein in a mode in which the plurality of discs are continuously played, the tray is moved to an eject position where all discs are absent. A disk playback device according to claim 1.