JPS6361461A - State display device for disk changer - Google Patents

Abstract

PURPOSE:To recognize the state of a dish changer at a glance, by providing a detecting means which detects the state of a rotary disk tray, and the presence/absence of a disk, and a display part, and displaying the presence/absence, and the state of the disk. CONSTITUTION:The rotary disk tray 4 is loaded on a slide table 3, and a disk containing part 4A in which plural sheets of disks can be placed, is formed on the upper plane of the tray. On the table 3, photosensors 11 and 23 are provided, and the photosensors 11 and 12 detect a marker provided on the rear plane of the tray, and detect the rotating position of the tray 4, and the presence/absence of the disk, etc. When the detecting signals of the sensors 11 and 12 are stored on the memory of a CPU 13, the display device of a front panel is driven by memory information, and a signal from an operating function input device, and the presence/absence of the disk on the tray 4, the disk in preparation for reproduction, and the disk in reproduction, are displayed on each display unit. Thus, it is possible to recognize the state of the disk changer at a glance.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a disc changer that can place a plurality of discs on a rotating disc tray and move the selected disc to a position where it can be played. The present invention relates to a device that displays the status of a computer.

[Summary of the invention]

In the present invention, a plurality of discs are placed in advance on a rotating disc tray, and the rotating disc tray is rotated using an operation button or the like to play a desired disc from among the plural discs. A device equipped with a disc changer according to the present invention includes a display device provided with a number of display units corresponding to the number of discs on the rotating disc tray, and a unit for detecting the rotational position of the rotating disc tray and the presence or absence of discs. This invention relates to a status display device for a disc changer that displays the status of each disc in an easy-to-understand manner using a single sensor.

[Conventional technology]

For playback devices such as record players and compact disc players, multiple disks are set in advance in the player device, and any track on the selected disk can be played by external operation. Some devices are known that are equipped with a disc changer.

[Problem that the invention seeks to solve]

By the way, in a device having such a disc changer mechanism, a package or a bin (BIN) is usually used.
), etc., and the desired disc is selected and played by external operation, which generally makes the device complex and is particularly difficult for general users. The status of the disc stored in the disc, for example, the presence or absence of the disc, the storage position,
There is a problem in that the configuration of the display device that recognizes the disc being played is complicated.

Furthermore, if there are a wide variety of display items indicating the status of each disc, there is a problem in that housewives and elderly people who are unaccustomed to operation may be confused by the display items, and the convenience of the disc changer is lost.

The present invention has been made in view of the above problems, and it provides a rotary type disc changer device, and also allows the status of the discs stored in the disc changer device to be properly recognized by a simple display device. The present invention provides a status display device for such a disc changer.

[Means for solving problems]

The disk changer status display device of the present invention includes a rotating disk tray on which a plurality of disks can be placed, the rotational position of this rotating disk tray, and the presence or absence of a disk placed on this rotating disk tray. A display device is provided, which includes a means for detecting the number of discs that can be set, and a display section corresponding to the total number of discs that can be set, and the light emitting state of the display is controlled to blink, for example, according to the state of the discs. To make it possible to recognize at a glance the status of a disk.

[Effect]

The rotating disk tray is controlled to rotate within the housing in response to an external operation signal at the beginning of disk loading, for example, in a horizontal direction, and to stop at a predetermined position. , by detecting the presence or absence of each disc and its position, the arrangement status of the discs in the changer is displayed on the display section corresponding to each disc, and also which disc is selected and played according to the operation information for the disc. Since the display section indicates whether the
It is possible to easily recognize which disk number is in which state, and at the same time, it is possible to easily perform a disk change operation.

〔Example〕

First, an outline of a multi-disc player to which the disc changer status display device of the present invention is applied will be explained.

Figure 1 was proposed earlier by the applicant (Japanese Patent Application No. 61-320
No. 23) An exploded perspective view showing m essential parts of a multi-disc player, l is a part of the chassis of the multi-disc player, 2
3 is a front panel, and 3 is a slide table that goes in and out from the front opening of the front panel 2.

As shown by the solid line, this slide table 3 has a circular rotary disk tray 4 mounted on the concave surface of the slide table 3, and the top surface of the tray 4 is arranged so that, for example, five compact disks can be placed thereon. Disk storage portions 4A, 4A, . . . , each having a concave surface are formed. Adjacent portions of the disc storage units 4A, 4A, . . . are connected to a circuit 4B so that the placed discs can be easily taken out.

4B... are alternately connected, and the chucking table of the spindle motor protrudes from the center part.
As will be described later, openings 4C, 4C, . Note that 4D, 4D, . . . are four parts useful when rotating the rotary disk tray 4 manually.

Reference numeral 5 denotes a rotary motor for rotating the rotary disk tray 4, which is attached to the lower surface of the slide table 3, and includes a rotation detector 9 positioning member for the rotary disk tray 4 as described later.

A disk detector and the like are also provided. A chucking head 6 is fixed to the slide table 3, and the lower side of the chucking head 6 is designated as the playback position.

7 is a separate drawing of a disc playback block placed on the bottom surface of the chassis part 1. Inside this disc playback block 7, there is a disc playback block 7 that is raised upward by a loading mechanism 9 provided on the chassis. A driven optical block 8 is installed inside.

Reference numeral 10 indicates an electronic circuit board fixed to the upper surface of the chassis part 1 via a support plate.

Such a multi-disc player stores a plurality of discs (five discs in this embodiment) in the disc storage sections 4A, 4A, etc. of the rotating disc tray 4 in advance! When the slide table 3 is pulled into the decorative body as in a normal disc player, and an arbitrary disc is selected using an operation button, the selected disc comes directly under the chucking head 6. The rotating disc tray 4 can be rotated and put into the playback state as shown in FIG. At the same time, it is preferable that the display when the disc is selected and the display indicating that the disc is being played can be easily confirmed.

Figures 2 and 3 show an embodiment for detecting the disk position and presence/absence indicated for such display and control. The figure shows a back view of the rotating disk tray.

Further, FIG. 4 shows an overview of the display on the front panel 2 and the operation keys.

In these figures, the same parts as in Figure 1 are given the same reference numerals, but 4E and 5E are gears that rotate the rotating disk tray 4, and 45.4Ei is a spindle motor that rotates the disk and its turntable. is located directly below the chucking head 6, and is raised by the aforementioned loading drive section 9 during playback to move into the disc storage section 4A.
The disk rotates.

The slide table 3 on which the rotating disk tray 4 is mounted is provided with two reflective photosensors 11° 12, and these photosensors 11° 12 are attached to the back side of the rotating disk tray 4 shown in FIG. The first. and second markers 4 H+, 4 H2
This detects the rotational position of the rotating disk tray and the presence or absence of a disk.

As shown in the figure, these two markers 4H1 and 4H2 are provided with a second marker 4H2 at a position that coincides with the rotational angle position of the disk storage section 4A, and a second marker 4H2 is provided in the adjacent intermediate portion of the disk storage section 4A. 1 marker 4H, is added6, and the first marker 4H, is particularly wide position information HIA, and address information H2 is narrow width.
It is considered to be a combination with ^.

By detecting the first marker 4H1 with the photosensor 11, the rotation angle position of the rotating disk tray 4 and the number of the disk storage section 4A are detected, and by detecting the second marker 4H2 with the photosensor 12, the rotating disk The rotation angle position of the tray 4 is detected.

Further, the photosensor 11 also outputs a signal for identifying the presence or absence of a disc based on the presence or absence of reflected light from the opening 4C of the disc storage section 4A.

Therefore, the detection signal of the photosensor 11 (12) obtained when the rotating disk tray 4 rotates once is transmitted to the CPU.
13, information about the presence or absence of a disc on the rotating disc tray and its corresponding information are stored, and this stored information and a signal from the operation input device 14 are used to display the display device 52 of the front panel 2, which will be described later. The disks are driven so that the status of the disks on the rotating disk tray can be displayed on each of the display sections 52A to 52H of the display device 52.

As illustrated in FIG. 5, on the front panel 2, above the front surface of the slide table 3, there are a switching button 51 for selecting the playback mode from single 0 multi, and a display device 52 for displaying the status of the disc changer. and a display window 53 for displaying the disc playback status. Control buttons 54 for controlling the playback status of the disc. and player operation button 5
A control button 56 for forming a 5° and performance program, and for performing an AMS operation and a skip operation, etc., are provided.

Among these various machine buttons, the ones related to the operation of the disc changer are the switching buttons 51. Multiple display parts 5 that display the status of the disc changer
2A, . . . 52E, and this point will be explained below.

First, when the switching button 51 is set to play one piece, that is, in the single mode, all the display parts of the display device 52 are off, and in this case, as described in the application specification mentioned above, When the slide table 3 is opened, the disk storage section 4A is located at the most extreme position.
When the slide table is crossed, it rotates to the playback position, and when the slide table is turned into an oven, it rotates so that the disc storage section 4A is in the playback position, that is, the played disc is located at the leading edge of the slide table. The disc tray 4 rotates.

Therefore, in the single mode, it can be operated in exactly the same way as a normal compact disc player, and in this mode, all the display devices are turned off.

Next, when the selector switch 51 is set to the multi-mode, the display device 52 is turned on and off depending on whether there is a disc placed on the rotating disc tray 4 and whether the playback drive is removable or not. The following operations are performed.

That is, the disk storage section 4A of the rotating disk tray 4
, 4A..., for example, Not.

When a disc is placed at the position NO3 or NO5, the display sections 52A, 52G, and 52E of the display device 52 light up to indicate that the disc is set at this position.

In particular, when a disc is set in the playback position, that is, in the disc storage section No. 3 located directly below the chucking head 6, only the display section 52C of No. 3, which indicates the position of the disc storage section, lights up brightly. (Hereinafter, the normal lighting state will be referred to as half-light, and the bright lighting state will be referred to as full-light).

Therefore, if you press the play button in this state, NO
When the third disc is in the playing state, the presence or absence of other discs set on the rotating disc tray and their positional relationships can be confirmed at a glance on the display device 52.

Next, if you want to play the No. 5 disc in this state, press the skip button from the control buttons 56, the rotating disc tray 4 will rotate, and the No. 4 disc storage section 4A will be controlled to come to the playback position. However, since no disc is placed in the No. 4 disc storage section and its display section 52D is also off, this disc storage section passes through the playback position, and the No. 5 disc storage section is at the playback position. The rotating disk tray 4 stops after being rotated until the point.

In this case, only the display section 52E is fully lit, indicating that the No. 5 disc is in the playback position, but during this selection process, the No. 5 display section 52E flashes - once, and the rotating disc tray indicates that the disc No. 5 is being moved to the playback position.

That is, the rotating disk tray 4 is moved by the skip operation.
While the disc is being rotated, the display section of the disc number that will be set next at the playback position flashes.

Therefore, the disk selection operation can be confirmed visually on the display device 52, and the selection operation can be simplified.

In addition, when the slide table 3 is used as an oven in the multi-mode, the rotation of the rotating disc tray is controlled so that the disc storage section at the playback position becomes the tip of the disc. The display part of the number is displayed so that it is fully lit. Then, when the slide table is closed again, the most advanced disk storage section is controlled to become the playback position, and the number in the all-light display section is kept unchanged.

Therefore, in a player having such a disc changer, when inputting a program for the playback order of discs and the number of tracks, it is possible to input them sequentially while checking the disc numbers of all the lights.

As mentioned above, the presence or absence of a disc in the disc storage section and its rotational position are detected, and this information is stored in the C.
The operation of loading the data into the memory of the PU can be performed by rotating the rotary disk tray 4 at least once when the power is turned on or when the slide table is closed.

In the above embodiment, the light is turned off when there is no disc.

Each of the display sections 52A to 5 is displayed using the first to fourth display methods, in which the display of the disk (storage section) in the current state is half-lit, the display of the disk (storage section) at each playback position is lit completely, and the disk (storage section) that is being skipped is blinked.
2E, but if the display device 52 is provided with at least the number of display sections corresponding to the total number of playable discs, the status display of the discs in the disc changer will be the same as the first one described above. ．． And, without being limited to the fourth display order, for example, a display method may be adopted in which the number of the disc (storage section) being played is displayed blinking, and the number of the disc being skipped is displayed half-lit. Needless to say, this is a good thing.

〔Effect of the invention〕

As explained above, the disk changer status display device of the present invention has a means for placing a plurality of disks on a rotating disk tray in advance, and for detecting the rotational angular position of the rotating disk tray and the presence or absence of a disk. and operation information, the state of each disc or disc storage section is detected, and the display section corresponding to the total number of playable discs is driven in a different display mode depending on the state of the disc or disc storage section. Because it is.

This has the advantage that the status of the disc changer can be understood at a glance, and the display installation can be simplified.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a multi-disc player in which the disc changer status display device of the present invention is adopted, Fig. 2 is a side view of a rotating disc tray, Fig. 3 is a rear view of the rotating disc tray, and Fig. The figure is a front view of the front panel. In the figure, 3 is a slide table, 4 is a rotating disk tray, 11.12 is a photo sensor, 13 is a CPU, 51 is a selection button, 52 is a display device, and 52A to 52E are display units. Rotating task tray/) Back view Figure 3

Claims (1)

[Claims] In a disc changer that is capable of selectively loading a plurality of discs placed on a rotating disc tray, detecting the rotational position of the rotating disc tray and the presence or absence of a disc placed on the rotating disc. and a display device having a number of display sections corresponding to the total number of disks that can be mounted on the rotating disk tray, and each display section indicates the presence or absence of a disk on the rotating disk. A status display device for a disc changer, characterized in that a second display, a third display showing a disc being prepared for playback, and a fourth display showing a disc being played back are displayed.