JP2679691B2 - Disc player - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of placing a plurality of discs on, for example, a rotating disc tray and moving the selected disc to a reproducible position. The present invention relates to such a disc player. In particular, the present invention is a means for accommodating a plurality of discs and a disc player capable of selectively reproducing the accommodated discs, in which a number display portion corresponding to a selected disc accommodating place blinks, Alternatively, the present invention relates to a disc player in which the state of each disc is displayed in an easy-to-understand manner by controlling the turning off. 2. Description of the Related Art In a device for reproducing a record player, a compact disc player, etc., a plurality of discs are set in advance in the player's device and operated from the outside. It is known to provide a disc changer capable of playing any tune of a selected disc. In a device having such a disc changer mechanism, a disc to be played is usually set in advance in a package or a bin (BIN). Since a desired disc is selected and reproduced by an external operation, the device is generally complicated, and in particular, the state of the disc accommodated to a general user, for example,
There is a problem that the configuration of the display device for recognizing the presence / absence of the disc, the accommodation position, the disc being reproduced, etc. becomes complicated. In addition, if the display items of the state for each disc are various, there is a problem that the ladies and girls and old people who are unfamiliar with the operation are confused by the display items and lose the convenience of the disc player. The disc player of the present invention can store the plurality of discs and the discs placed in the storage means for selective reproduction. In the disc player described above, a display unit corresponding to the number of discs stored in the storage means is provided, and the light emission state of the display unit is controlled by, for example, blinking control or turning off the light in the disc player. Check the status of the loaded disc at a glance. A disc player having a rotary disc tray as a storage portion is designed to rotate at a predetermined position, for example, in a clockwise direction in a casing in response to an operation signal from the outside in the initial stage of disc loading. However, during this rotation operation, the presence or absence of each disk and its position are detected to display the disk layout status on the display unit for each disk. Is selected, or the disk-less portion of the disk tray is shown on the display section, so that the display section can be simplified and, for example, it can be easily recognized which disk is in which state. You can
The change operation of the disc to be reproduced can be facilitated. First, an outline of an embodiment to which the disc player of the present invention is applied will be described. FIG. 1 is an exploded perspective view showing an outline of a multi-disc player proposed by the present applicant (Japanese Patent Application No. 61-32023), in which 1 is a chassis portion of the multi-disc player, and 2 is The front panel 3 is a slide table that comes in and out through the front opening of the front panel 2. As shown by the solid line, a circular rotary disk tray 4 is mounted on the slide table 3 on the concave surface of the slide table 3 as a disk storing means, and the upper surface thereof has, for example, 5 .. are formed to be concave so that one compact disk can be placed. The adjacent portions of the disc storage portions 4A, 4A ... Are alternately connected by concave passages 4B, 4B .. The chucking table of the spindle motor projects into the opening, and as will be described later, an opening 4 is formed so as to face a pickup device arranged in the housing.
C, 4C ... 4D, 4D ...
... are concave portions useful when the rotary disc tray 4 is manually rotated. A rotary motor 5 for rotating the rotary disc tray 4 is attached to the lower surface of the slide table 3, and a rotation detector and a positioning device for the rotary disc tray 4 are mounted on this portion, as will be described later. Members, disk detectors, etc. are also provided. Reference numeral 6 denotes a chucking head fixed to the slide table 3, and the lower side of the chucking head 6 is designated as a reproduction position. Reference numeral 7 shows a disk reproducing block arranged on the bottom surface of the chassis portion 1 in another drawing. Inside the disk reproducing block 7, a loading mechanism 9 provided in the chassis is shown. An optical block 8 that is driven so as to rise upward is installed inside. Reference numeral 10 denotes an electronic circuit board fixed to the upper surface of the chassis portion 1 via a support plate. In such a multi-disc player, a plurality of discs (five in this embodiment) are placed in advance in the disc storage portions 4A, 4A ... After pulling the slide table 3 into the housing as seen in a normal disk player, and selecting an arbitrary disk with the operation buttons or the like, the selected disk comes directly under the chucking head 6. The rotating disc tray 4 rotates and can be put into a reproducing state. In this case, when there is a disc set in the disc storing portion of the rotating disc tray 4, the set position number is displayed and It is desirable to make it easy to confirm the display when the disc is being selected and the display that the disc is playing. Arbitrariness. FIGS. 2 and 3 show an embodiment for detecting the disk position shown for performing such display and control, and the presence or absence thereof. FIG. 2 shows the side surface of the rotary disk tray, and FIG. Shows a back view of the rotating disc tray. FIG. 4 shows the front panel 2 display and operation keys.
The outline is shown. In these figures, the same parts as those in FIG. 1 are designated by the same reference numerals, 4E and 5E are gears for rotating the rotary disc tray 4, 45 and 46 are spindle motors for rotating the discs, and their rotors. The table is located immediately below the chucking head 6 and is raised by the above-mentioned loading drive unit 9 during reproduction to rotate the disc in the disc storage unit 4A.
The slide table 3 having the rotary disc tray 4 mounted thereon is provided with two reflective photosensors 11 and 12, and these photosensors 11 and 12 are the same as those of the rotary disc tray 4 shown in FIG. The first and second markers 4H ₁ and 4H ₂ provided concentrically on the back surface are detected to detect the rotational position of the rotary disk tray and the presence / absence of a disk. As shown in the figure, the _two markers 4H ₁ and 4H ₂ are provided with a _second marker 4H _{2 at} a position corresponding to the rotation angle position of the disk storage portion 4A. A first marker 4H ₁ is added to the adjacent middle portion of 4A. The first Ma - Ca 4H ₁ is particularly position information H _1A being wider, and the combination of the address information H _2A, which is the narrow. And the first marker
The rotational angle position of the rotary disc tray 4 by detecting the mosquitoes 4H ₁ by the photosensor 11 detects the number of the disk housing portion 4A, the second Ma - rotating disc tray by mosquitoes 4H ₂ detected by the photosensor 12 Four
The rotation angle position of is detected. Further, the photo sensor 11 also outputs a signal for identifying the presence / absence of a disc depending on the presence / absence of reflected light from the opening 4C of the disc housing 4A. Therefore, when the detection signal of the photosensor 11 (12) obtained when the rotary disc tray 4 is rotated once is recorded in the memory of the CPU 13, the presence / absence information of the disc on the rotary disc tray and its position information are stored. The display device 52 of the front panel 2 to be described later is driven by the stored information and the signal from the operation function input device 14, and the state of the disc on the rotating disc tray can be displayed on each of the display portions 52A to 52E of the display device 52. It is made possible. On the front panel 2, as shown in FIG. 4, a switching button 51 for selecting the reproduction mode from single to multi and a state of the disc changer are displayed above the front surface of the slide table 3. A display device 52 for displaying, a display window 53 for displaying a disc reproduction state, a control button 54 for controlling the disc reproduction state, a player operation button 55, and a performance program are formed to perform an AMS operation and a skip operation. Control button 56
Etc. are arranged. Among these various function buttons, particularly the portion related to the operation of changing the disc, a plurality of display portions 52A for displaying the state of the switching button 51 and the disc changer ,. .Display device 52 comprising 52E
Therefore, this point will be described below. First, when the switch button 51 is playing one sheet, that is, in the single mode, all the display portions of the display device 52 are turned off, and in this case, it is also described in the above-mentioned application specification. As described above, when the slide table 3 is opened, the disc storage portion 4A at the most advanced position is rotated to the reproduction position when the slide table is closed, and
When the slide table is opened, the rotary disc tray 4 rotates so that the disc storage portion 4A at the reproduction position, that is, the disc that has been reproduced, is located at the tip of the slide table. Therefore, the single mode can be operated in the same manner as an ordinary compact disc player, and in this mode, all the display devices are turned off. Next, when the changeover switch 51 is set to the multi-mode, the display device 52 is activated, and the light is turned on, off, blinking, etc. depending on the presence / absence of the disc placed on the rotary disc tray 4 and the reproduction drive state. Is performed. That is, for example, when the disc is placed at the positions NO1, NO3, NO5 in the disc storage portions 4A, 4A ... Of the rotating disc tray 4, the display portion 52 of the display device 52 is displayed.
A, 52C and 52E are lit to indicate that the disc is set at this position. Particularly, when the disc is set in the reproducing position, that is, in the NO3 disc storage portion directly below the chucking head 6, only the NO3 display portion 52C indicating the position of the disc storage portion is displayed. Lights brightly (hereinafter, the normal lighting state is called a half-light, and the bright lighting state is called a full light). Therefore, when the play button is pressed in this state, the NO3 disc is put into a playing state, and the presence or absence of another disc set on the rotating disc tray and its positional relationship can be confirmed at a glance by the display device 52. it can. Next, when it is desired to reproduce the NO5 disc in this state, when the skip button is pressed from the control button 56, the rotary disc tray 4 is rotated and the NO4 disc accommodating portion 4A is brought to the reproduction position. Although it is controlled so as to come, the disc is not placed in the disc storage portion of NO4, and the display portion 52D is also turned off. Therefore, it is understood that there is no disc in the disc storage portion. Then, the rotating disk tray passes this reproducing position, and the rotating disk tray 4 is stopped in a state where the disk storing portion of NO5 is rotated to the reproducing position. In this case, only the display portion 52E is fully lit, indicating that the NO5 disc is in the reproducing position. However, during the selection process, the NO5 display portion 52E is displayed.
Blinks once, and the rotating disc tray is NO5.
The disc is being moved to the playback position. That is, when the rotary disc tray 4 is rotated by the skip operation, the display portion of the disc number to be set next at the reproduction position blinks. Therefore, the disc selecting operation is performed by the display device 5.
2 can be confirmed by visual inspection, and the selection operation can be simplified. Further, when the slide table 3 is opened in the multi mode, the rotary disc tray is rotationally controlled so that the disc storage portion located at the reproducing position is at the forefront. At this time, The display portion of this state-of-the-art disc storage section is displayed as if all lights were on. Then, when the slide table is closed again, the leading edge of the disc storage portion is controlled to the reproduction position. Therefore, such a disc changer
With the player having the function, even when the program reproduction order and the tunes of the disk are inputted, it becomes possible to successively input them while observing the state of the display portion. As described above, the operation of detecting the presence / absence of a disc in the disc storage portion and its rotational position and fetching these information into the memory of the CPU is performed when the power is turned on or the slide table is closed. This can sometimes be done by rotating the rotating disc tray 4 at least once. In the above-described embodiment, the first to fourth cases are such that the state where there is no disc is turned off, the state where there is a disc is half light, the discs in the playback position (storage unit) are all lit, and the skipped disc (storage unit) is blinking Depending on the display method of each display part 5
2A to 52E are driven, but the display device 5
When 2 has at least a display portion corresponding to the total number of reproducible discs, the disc status display in the disc player should be limited to the above-mentioned first and fourth display order. It goes without saying that, for example, it is possible to adopt a display method in which the display portion of the disc (storage unit) being played back is made to blink and the display portion of the disc being skipped is made to be a half-light display. . As described above, the disc changer device of the present invention places a plurality of discs in the disc storage device in advance and detects the presence or absence of the discs stored in the disc storage device. And the operation information to detect the state of each disc or disc storage unit,
Since the display portion corresponding to the total number of reproducible discs is driven in a different display mode according to the state of the disc or the disc storage portion, the state of the stored discs can be understood at a glance. There is an advantage that there is an effect and the display device can be simplified. [0023]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a multi-disc player in which a disc changer device of the present invention is adopted. FIG. 2 is a side view of a rotary disc tray. FIG. 3 is a rear view of a rotary disc tray. FIG. 4 is a front view of a front panel. [Explanation of reference numerals] 3 slide table 4 rotating disc tray 11, 12 photo sensor 13 CPU 51 selection button 52 display devices 52A to 52E display portion

Claims (1)

(57) [Claims] In a disc player capable of accommodating a plurality of discs and selecting and reproducing any disc from the plurality of discs accommodated therein, selection means for selecting an arbitrary disc from the plurality of discs; A display unit having display elements corresponding to the total number of sheets and a disc are loaded in the disc storage unit.
Detecting means for detecting whether or not the total number of sheets that can be stored based on the detection result of the detecting means
The number of display elements corresponding to the number of
In addition to displaying in a distinguishable manner in the display format of 1,
The display element corresponding to the disc selected by the
And display control means for displaying in a display format of 2 in a distinguishable manner.
A disc player that is characterized by 2. The display control means is provided between the disks by the selection means.
When searching for, set the display element corresponding to the searched disk to
A contract characterized by identifiable display in the display format of 3
The disc player according to claim 1.