JPS62239378A - Information processor - Google Patents

Information processor

Info

Publication number
JPS62239378A
JPS62239378A JP8261086A JP8261086A JPS62239378A JP S62239378 A JPS62239378 A JP S62239378A JP 8261086 A JP8261086 A JP 8261086A JP 8261086 A JP8261086 A JP 8261086A JP S62239378 A JPS62239378 A JP S62239378A
Authority
JP
Japan
Prior art keywords
disk
disc
shaped recording
absence
recording medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8261086A
Other languages
Japanese (ja)
Inventor
Keiichi Onishi
大西 恵一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8261086A priority Critical patent/JPS62239378A/en
Publication of JPS62239378A publication Critical patent/JPS62239378A/en
Pending legal-status Critical Current

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  • Automatic Disk Changers (AREA)

Abstract

PURPOSE:To exchange disks at a high speed by providing a disk presence/ absence detecting means at the upper or lower part of a disk set on a disk mounting part to detect the presence/absence of a disk for each rotation of the disk mounting part. CONSTITUTION:When a shift stage 8 is carried into an information processor, a microprocessor 42 actuates a light emitting element of a light emitting part 43. Then a photodetector 44 confirms and stores the presence or absence of a disk 1 set on a disk mounting part 3. A rotary table 5 is turned to shift the adjacent part 3 onto the photodetector 44 and the presence or absence of the disk 1 is confirmed and stored. Hereafter the same procedure is repeated with all parts 3 to grasp the presence or absence of all disks 1 stores in a magazine 2. Then a desired disk 1 is shifted to a reproduction part. In this case, the table 5 is turned when the presence of the disk 1 is decided from the information given from the detector 44. Thus the disk 1 is shifted to the reproducing part and positioned there.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は複数の円盤状記録媒体に情報を記録または再
生する情報処理装置で、特に円盤状記録媒体搭載部に搭
載された円盤状記録媒体の有無を検出するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an information processing device that records or reproduces information on a plurality of disc-shaped recording media, and particularly to a disc-shaped recording medium mounted in a disc-shaped recording medium mounting section. This is to detect the presence or absence of.

〔従来の技術〕[Conventional technology]

従来よシ複数の円盤状記録媒体(以下ディスクという)
の情報を再生する装置としてコンパクトディスクプレー
ヤがあυ、その−例を第4図乃至′48図について説明
する。第4図は装置斜視図、第5図は再生機構および昇
降機構を示す斜視図、′j46図は装置外観図、第7図
は制御系の構成図、第8図は制御系の70−チャートを
示す。図において、(1)はディスク、(2)は複数枚
のディスク(1)を収納するマガジン、(3)はそれぞ
れディスク(1)を搭載するディスク搭載部、(4)は
ディスク(1)の情報を読むための窓、(5)はマガジ
ン(2)を載置して回転するロータリテーブル、(6)
はロータリテーブル(5)をベルト(力を介して回転せ
しめるモータ、(8)は移送台、(9)はディスク(1
)の情報の再生を行なう再生手段としての光ピツクアッ
プ、(10a)、(10b)は光ピツクアップ(9)を
ディスク(1)の半径方向に摺動可能に取付けるための
ガイド棒、(11)は光ピツクアップ(9)に取付けら
れたラック、(12)は光ピツクアップ(9)を駆動す
るスライドモータ、(13)はラック(11)と係合し
てスライドモータ(12)の駆動力を伝達する歯車、(
14)は移送台(8)を所定の位置に移動させるローデ
ィングモータ、(15)、(16)は各々噛合しかつシ
ャーシ(17)に設けられたラック(18)にローディ
ングモータ(14)の駆動力を伝達する歯車、(19)
は再生用ペース(20)に保持されかつディスク(1)
を回転せしめるスピンドルモータ、(21)はスピンド
ルモータ(19)の軸部に固定されかつディスク(1)
を載置するターンテーブル、(22)は軸(23)に軸
支されかつディスク(1)をクランプするクランプレバ
−1(24)はり2ンプレパー(22)に保持されたデ
ィスクホルダ、(25)は軸(26)を中心とする回動
レバー、(27)は再生ペース(20)を所定の位置に
移動させるモータ、(28)、(29)は各々噛合しか
つラック(30)にモータ(27)の駆動力をベルト(
31)を介して伝達する歯車、(32)はラック(30
)によって再生ペース(20)を昇降させる駆動板、(
33)、(34)はシャー−/(17)K固定される案
内ビン、(35a)。
Conventionally, multiple disk-shaped recording media (hereinafter referred to as disks)
A compact disc player is an example of a device for reproducing information on a computer, and an example thereof will be explained with reference to FIGS. 4 to 48. Fig. 4 is a perspective view of the device, Fig. 5 is a perspective view showing the reproduction mechanism and lifting mechanism, Fig. 46 is an external view of the device, Fig. 7 is a configuration diagram of the control system, and Fig. 8 is a 70-chart of the control system. shows. In the figure, (1) is a disk, (2) is a magazine that stores a plurality of disks (1), (3) is a disk mounting part that mounts each disk (1), and (4) is a disk (1). Window for reading information, (5) is a rotary table on which the magazine (2) is placed and rotates, (6)
is a motor that rotates the rotary table (5) via a belt (force), (8) is a transfer table, and (9) is a disk (1).
), (10a) and (10b) are guide rods for slidably attaching the optical pickup (9) in the radial direction of the disk (1); (11) is an optical pickup as a reproduction means for reproducing information; A rack attached to the optical pickup (9), (12) is a slide motor that drives the optical pickup (9), and (13) engages with the rack (11) to transmit the driving force of the slide motor (12). gear,(
14) is a loading motor that moves the transfer table (8) to a predetermined position, and (15) and (16) are meshed with each other and drive the loading motor (14) to a rack (18) provided on the chassis (17). Gears that transmit power, (19)
is held at the playback pace (20) and the disc (1)
A spindle motor (21) is fixed to the shaft of the spindle motor (19) and rotates the disk (1).
A turntable (22) is supported by a shaft (23) and a clamp lever 1 (24) for clamping the disc (1); a disc holder (25) is held by a beam prepper (22); A rotary lever centered on the shaft (26), (27) a motor for moving the regenerating pace (20) to a predetermined position, (28) and (29) meshing with each other and connecting the motor (27) to the rack (30); ) transfers the driving force of the belt (
The gear (32) transmits transmission via the rack (30
) for raising and lowering the regeneration pace (20);
33), (34) are shear/(17) guide bins to which K is fixed; (35a);

(asb)は案内溝、(36)、(37)は案内板、(
38)、(39)は再生ペース(20)に保持されるビ
ン、(40a ) 、 (40b ) ハ案内板(36
)に設けられた溝、(41a)。
(asb) is a guide groove, (36), (37) are guide plates, (
38), (39) are the bottles held in the regeneration pace (20), (40a), (40b) and guide plate (36).
), (41a).

(41b)は駆動板(32)に設けられた溝、(41)
は移動台(8)に設けられたスイッチパネル、(42)
はマイクロプロセッサである。
(41b) is a groove provided in the drive plate (32), (41)
is a switch panel provided on the moving table (8), (42)
is a microprocessor.

以上のような構成において、フローチャートに従い動作
を説明する。ディスク(1)をディスク搭載部(3)に
有したマガジン(2)を移送台(8)のロータリテーブ
ル(5)に載置し、スイッチパネル(41)の開閉スイ
ッチ(41a)を動作させると、マイクロプロセッサ(
42)はローディングモータ(14)を回転させ、歯車
(15)、(16)を介してシャーシ(17)のラック
(18)Kその駆動力を伝達し、移送台(8)を装置内
部に移送する。次に、マイクロプロセッサ(42) ハ
マガジン(2)内の再生しようとするディスク(1)を
再生部に移送するためにモータ(6)を回転せしめ、ベ
ルト(7)を介してマガジン(2)が載置されたロータ
リテーブル(5)を回転し所定位置へ位置決めする。次
にモータ(27)を回転せしめることによブラック(3
0)を案内溝(35a)、(35b)に涜って移動させ
ることになシ、ラック(3o)に連結された駆動板(3
2)が移動し、再生ペース(20)はビン(38)、(
39)が溝(40a)、(40b)、(41a)、(4
11))に沿って上昇する。その際、回動レバー(25
)も軸(26)を中心に回動してクランプレバ−(22
)を矢印A方向に回転させるので、クランプレバ−(2
2)に保持されたホルダー(24)とターンテーブル(
21)とによってディスク(1)が保持される。次に、
マイクロプロセッサ(42)はスピンドルモータ(19
)つまりディスク(1)を回転せしめ、光ピツクアップ
(9)をスライドモータ(12)を回転させることによ
シ移動させ、ディスク(1)の情報信号を再生するよう
制御する。また、これらの動作を繰シ返し、他のディス
ク搭載部(3)を再生部に移送し、再生を行なうとき、
光ピツクアップ(9)がいかなる信号をも再生しえない
とマイクロプロセッサ(42)はディスク(1)が該デ
ィスク搭載部(3)に搭載されていないものとみなし、
動作を停止し、他のディスク(1)を再生すべき時は前
述の動作を繰シ返し、マガジン(2)内のディスク(1
)を順次再生する。
In the above configuration, the operation will be explained according to the flowchart. When the magazine (2) with the disk (1) in the disk mounting part (3) is placed on the rotary table (5) of the transfer table (8) and the open/close switch (41a) of the switch panel (41) is operated. , microprocessor (
42) rotates the loading motor (14), transmits its driving force to the rack (18) of the chassis (17) via gears (15) and (16), and transfers the transfer table (8) into the inside of the device. do. Next, the microprocessor (42) rotates the motor (6) in order to transfer the disc (1) to be reproduced from the magazine (2) to the reproduction section, and transfers the disc (1) from the magazine (2) to the magazine (2) via the belt (7). The rotary table (5) on which is placed is rotated and positioned at a predetermined position. Next, by rotating the motor (27), the black (3
0) is moved through the guide grooves (35a) and (35b), the drive plate (3o) connected to the rack (3o)
2) moves, and the playback pace (20) is changed to the bin (38), (
39) are grooves (40a), (40b), (41a), (4
11)). At that time, use the rotating lever (25
) also rotates around the shaft (26) and the clamp lever (22
) in the direction of arrow A, press the clamp lever (2
2) held by the holder (24) and turntable (
21), the disk (1) is held by. next,
The microprocessor (42) controls the spindle motor (19).
) That is, the disk (1) is rotated, the optical pickup (9) is moved by rotating the slide motor (12), and the information signal of the disk (1) is controlled to be reproduced. In addition, when repeating these operations to transfer another disk loading section (3) to the playback section and perform playback,
If the optical pickup (9) cannot reproduce any signal, the microprocessor (42) assumes that the disk (1) is not mounted on the disk mounting section (3),
To stop the operation and play another disk (1), repeat the above operation and play the disk (1) in the magazine (2).
) are played in sequence.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来の情報処理装置は以上のように再生状態になっては
じめてディスクの有無の検出を行なうので、ディスクを
搭載していないディスク搭載部をも移送して再生動作を
行なわなければならず、高速なディスク交換が困難であ
った。
Conventional information processing equipment detects the presence or absence of a disc only after it enters the playback state as described above, so it is necessary to move the disc loading section where no disc is mounted to perform the playback operation, which requires high-speed playback. It was difficult to replace the disc.

この発明は上記のような問題点を解消するためになされ
たもので、ディスク搭載部に搭載された複数のディスク
の有無を事前に把握し、高速なディスク交換が可能とな
る情報処理装置を提供することを目的とする。
This invention was made to solve the above-mentioned problems, and provides an information processing device that can detect in advance the presence or absence of multiple disks mounted on a disk mounting section and can perform high-speed disk replacement. The purpose is to

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係る情報処理装置は、ディスク搭載部上のデ
ィスクの上部もしくは下部に有無検出手段を設け、ディ
スク搭載部が回転する毎にその有無検出手段部上のディ
スクの有無を検出するものである。
The information processing device according to the present invention is provided with a presence/absence detection means above or below the disk on the disk mounting section, and detects the presence or absence of the disk on the presence/absence detection means section every time the disk mounting section rotates. .

〔作用〕[Effect]

この発明においては、ディスク搭載部上の複数のディス
クの有無を検出し、制御系に的確な情報を与える。
In this invention, the presence or absence of a plurality of disks on the disk mounting section is detected and accurate information is provided to the control system.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を第1図乃至第3図について
説明する。y61図は装置斜視図、第2図は制御系の構
成図、第3図は制御系のフローチャートであシ、上記従
来装置と同一部分には同一符号を付して説明を省略する
。図において、(43)はディスク搭載部(3)上に搭
載されたディスク(1)に対して光を発する発光部、(
44)は反射する発光部(43)の光を検出する光検出
器である。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. y61 is a perspective view of the device, FIG. 2 is a block diagram of the control system, and FIG. 3 is a flowchart of the control system. The same parts as those in the conventional device described above are designated by the same reference numerals and explanations thereof will be omitted. In the figure, (43) is a light emitting part that emits light to the disc (1) mounted on the disc mounting part (3);
44) is a photodetector that detects the reflected light from the light emitting section (43).

ディスク(1)をディスク搭載部(3)に有したマガジ
ン(2)を移送台(8)のロータリテーブル(5)に載
置し、開閉スイッチ(41a)を動作させると、マイク
ロプロセッサ(42)はローディングモータ(14)を
回転させ、ラック(18)に駆動力を伝達し、移送台(
8)を装置内部に移送する。
When the magazine (2) with the disk (1) in the disk mounting portion (3) is placed on the rotary table (5) of the transfer table (8) and the open/close switch (41a) is operated, the microprocessor (42) rotates the loading motor (14), transmits driving force to the rack (18), and transfers the transfer table (
8) into the inside of the device.

さて、発光部(43)の発光素子が発する光は、ディス
ク(1)の情報面に当たって反射し、その反射した光を
光検出器(44)が検出する。
Now, the light emitted by the light emitting element of the light emitting section (43) hits the information surface of the disk (1) and is reflected, and the photodetector (44) detects the reflected light.

この時、ディスク搭載部(3)上にディスク(1)がな
いと発光部(43)の発光素子が発する光は反射しない
ので光検出器(44)も光を検出することはできない。
At this time, if the disk (1) is not on the disk mounting section (3), the light emitted by the light emitting element of the light emitting section (43) will not be reflected, and therefore the photodetector (44) will not be able to detect the light.

従って、移送@(8)が装置内部に移送されると、マイ
クロプロセッサ(42)は発光部(43)の発光素子を
発光させ、光検出器(44)によって光検出器(44)
上のディスク搭載部(3)上のディスク(1)の有無を
確認し記憶する。
Therefore, when the transfer@(8) is transferred into the device, the microprocessor (42) causes the light emitting element of the light emitting section (43) to emit light, and the photodetector (44) causes the light emitting element (43) to emit light.
Check the presence or absence of the disk (1) on the upper disk mounting section (3) and store it.

次に、マイクロプロセッサ(42Hto−1リテーブル
(5)を回転して隣シのディスク搭載部(3)を光検出
器(44)上に移送し、ディスク(1)の有無を確認し
記憶する。以下全てのディスク搭載部(3)に対し前述
の動作を繰シ返すことにようマイクロプロセッサ(42
)はマガジン(2)内のディスク(1)の有無を全て把
握する。次に、所望のディスク(1)を再生部へ移送す
る訳であるが、マイクロプロセッサ(42)は光検出器
(44)によって得られた情報によシディスク(1)が
有シと判断された時に始めてロータリテーブル(5)を
回転し、再生位置にディスク(1)を移送して位置決め
する。次に、モータ、(27)を回転せしめることによ
り再生ベース(20)は溝(40a)。
Next, the microprocessor (42Hto-1 retable (5) is rotated to transfer the adjacent disk loading section (3) onto the photodetector (44), confirming the presence or absence of the disk (1), and storing it. .Then, the microprocessor (42) repeats the above operation for all the disk mounting parts (3).
) determines whether there is a disk (1) in the magazine (2). Next, the desired disc (1) is transferred to the playback section, but the microprocessor (42) determines that the disc (1) is available based on the information obtained by the photodetector (44). The rotary table (5) is rotated only when the disc (1) is moved and positioned at the playback position. Next, by rotating the motor (27), the reproduction base (20) is moved into the groove (40a).

(40b)、(41a)、(41b)に沼って上昇し、
その際回動レバー(25)が軸(26)を中心に回動し
てクランプレバ−(22)を矢印A方向に回転させるの
で、クランプレバ−(22)に保持されたホルダー(2
4)とターンテーブル(21)とによってディスク(1
)が保持される。次に、マイクロプロセッサ(42)は
スピンドルモー/(19)つtbディスク(1)を回転
せしめ、光ピツクアップ(9)をスライドモータ(12
)を回転させることによシ移動させ、ディスク(1)の
情報信号を再生するよう制御する。
(40b), (41a), (41b) swamp and rise,
At that time, the rotating lever (25) rotates around the shaft (26) and rotates the clamp lever (22) in the direction of arrow A, so that the holder (25) held by the clamp lever (22)
4) and the turntable (21).
) is retained. Next, the microprocessor (42) rotates the spindle motor (19) and the tb disk (1), and moves the optical pickup (9) to the slide motor (12).
) is moved by rotating the disc (1), and the information signal of the disc (1) is controlled to be reproduced.

また、光検出器(44)の情報によシディスク搭載部(
3)上にディスク(1)が無いと判断されると、他のデ
ィスク搭載部(3)のディスク(1)の有無を判断した
上で有シとなれば再生動作に移り、無ければさらに次の
ディスク(1)の有無判断を行なう。従って、マガジン
(2)内にディスク(1)が全く無いと装置は停止した
ままであシ、1枚でもディスク(1)があるとそのディ
スク(1)の再生を行なう。
Also, based on the information from the photodetector (44), the disk mounting section (
3) If it is determined that there is no disk (1) on the disk, it is determined whether there is a disk (1) in another disk loading section (3), and if there is, the playback operation starts; if there is no disk, the next step is continued. The presence or absence of the disk (1) is determined. Therefore, if there are no discs (1) in the magazine (2), the device remains stopped, but if there is even one disc (1), that disc (1) is played back.

なお、上記実施例では発光部(43)と光検出器(44
)とからなる有無検出手段をディスク(1)の下部に1
対設けたが複数対設けてもよく、またディスク(1)の
上部に設けてもよい。
In addition, in the above embodiment, the light emitting section (43) and the photodetector (44)
) is installed at the bottom of the disk (1).
Although a pair is provided, a plurality of pairs may be provided, or they may be provided on the upper part of the disk (1).

〔発明の効果〕〔Effect of the invention〕

この発明は以上のようにディスク搭載部のディスクの有
無を再生前に事前に検出するよう構成したので、ディス
ク交換を高速に行なえ、ディスクの有無いかんに関わら
ず複数のディスクを連続的に処理できるという効果を奏
する。
As described above, this invention is configured to detect the presence or absence of a disk in the disk mounting section before playback, so that disk exchange can be performed at high speed and multiple disks can be processed continuously regardless of the presence or absence of a disk. This effect is achieved.

【図面の簡単な説明】[Brief explanation of drawings]

y61図はこの発明の一実施例を示す装置斜視図、第2
図は制御系の構成図、fJ3図は制御系の70−チャー
ト、第4図は従来装置の装置斜視図、第5図は再生機構
および昇降機構を示す斜視図、第6図は装置外観図、第
7図は制御系の構成図、第8図は制御系のフローチャー
トである。 図において、(1)は円盤状記録媒体、(3)は円盤状
記録媒体搭載部、(9)は記録または再生手段、(6)
、(27)はモータ、(43)は発光部、(44)は光
検出器である。 なお、図中同一符号は同一または相当部分を示す。 代理人 弁理士  大  岩  増  雄第3図 第 5 図 9、えビ、7クアーノ7 第6図
Fig. y61 is a perspective view of the device showing one embodiment of this invention;
The figure is a configuration diagram of the control system, the fJ3 figure is a 70-chart of the control system, Figure 4 is a perspective view of the conventional device, Figure 5 is a perspective view showing the regeneration mechanism and lifting mechanism, and Figure 6 is an external view of the device. , FIG. 7 is a block diagram of the control system, and FIG. 8 is a flowchart of the control system. In the figure, (1) is a disk-shaped recording medium, (3) is a disk-shaped recording medium mounting section, (9) is a recording or reproducing means, and (6) is a disk-shaped recording medium.
, (27) is a motor, (43) is a light emitting unit, and (44) is a photodetector. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent: Masuo Oiwa, Patent Attorney Figure 3 Figure 5 Figure 9, Ebi, 7 Quano 7 Figure 6

Claims (2)

【特許請求の範囲】[Claims] (1)円盤状記録媒体を同一面上に複数枚搭載する円盤
状記録媒体搭載部と、前記円盤状記録媒体に情報を記録
再生する記録または再生手段と、前記円盤状記録媒体搭
載部を回転させかつ搭載された前記円盤状記録媒体を前
記記録または再生手段部に移送する回転手段と、前記円
盤状記録媒体に対し前記記録または再生手段部を上昇下
降させる昇降機構とを有する情報処理装置において、前
記円盤状記録媒体搭載部に搭載されたいずれかの円盤状
記録媒体の上部もしくは下部に設けられる有無検出手段
を備え、前記回転手段によつて前記円盤状記録媒体搭載
部が回転せられる毎に搭載された円盤状記録媒体の有無
を前記有無検出手段によつて検出するようにしたことを
特徴とする情報処理装置。
(1) A disc-shaped recording medium mounting section that mounts a plurality of disc-shaped recording media on the same surface, a recording or reproducing means that records and reproduces information on the disc-shaped recording medium, and a rotating disc-shaped recording medium mounting section. an information processing device comprising: a rotating means for moving the disc-shaped recording medium mounted thereon to the recording or reproducing means section; and an elevating mechanism for raising and lowering the recording or reproducing means section with respect to the disc-shaped recording medium. , comprising presence/absence detection means provided at the upper or lower part of any of the disc-shaped recording media mounted on the disc-shaped recording medium mounting section, each time the disc-shaped recording medium mounting section is rotated by the rotating means. An information processing apparatus characterized in that the presence/absence of a disc-shaped recording medium mounted on the apparatus is detected by the presence/absence detecting means.
(2)有無検出手段を、円盤状記録媒体に対して光を発
する発光部と、反射する光を検出する光検出器とによつ
て構成した特許請求の範囲第1項記載の情報処理装置。
(2) The information processing device according to claim 1, wherein the presence/absence detection means is constituted by a light emitting section that emits light toward the disk-shaped recording medium and a photodetector that detects the reflected light.
JP8261086A 1986-04-08 1986-04-08 Information processor Pending JPS62239378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8261086A JPS62239378A (en) 1986-04-08 1986-04-08 Information processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8261086A JPS62239378A (en) 1986-04-08 1986-04-08 Information processor

Publications (1)

Publication Number Publication Date
JPS62239378A true JPS62239378A (en) 1987-10-20

Family

ID=13779241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8261086A Pending JPS62239378A (en) 1986-04-08 1986-04-08 Information processor

Country Status (1)

Country Link
JP (1) JPS62239378A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01229455A (en) * 1988-03-09 1989-09-13 Sharp Corp Disk player
JPH03256260A (en) * 1990-03-07 1991-11-14 Pioneer Electron Corp Multi-type cd player system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62192065A (en) * 1986-02-18 1987-08-22 Sony Corp Multi-disk player
JPS62192063A (en) * 1986-02-18 1987-08-22 Sony Corp Multi-disk player

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62192065A (en) * 1986-02-18 1987-08-22 Sony Corp Multi-disk player
JPS62192063A (en) * 1986-02-18 1987-08-22 Sony Corp Multi-disk player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01229455A (en) * 1988-03-09 1989-09-13 Sharp Corp Disk player
JPH03256260A (en) * 1990-03-07 1991-11-14 Pioneer Electron Corp Multi-type cd player system

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