WO1998011545A1 - Detecteur de presence d'un support de disque et d'un disque dans un jukebox - Google Patents

Detecteur de presence d'un support de disque et d'un disque dans un jukebox Download PDF

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Publication number
WO1998011545A1
WO1998011545A1 PCT/DE1997/001843 DE9701843W WO9811545A1 WO 1998011545 A1 WO1998011545 A1 WO 1998011545A1 DE 9701843 W DE9701843 W DE 9701843W WO 9811545 A1 WO9811545 A1 WO 9811545A1
Authority
WO
WIPO (PCT)
Prior art keywords
transport device
disk
playback
plate holder
plate
Prior art date
Application number
PCT/DE1997/001843
Other languages
German (de)
English (en)
Inventor
Ulrich Pitz
Original Assignee
Nsm Aktiengesellschaft
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 Nsm Aktiengesellschaft filed Critical Nsm Aktiengesellschaft
Priority to JP10513115A priority Critical patent/JP2001500302A/ja
Priority to EP97941821A priority patent/EP0925584A1/fr
Publication of WO1998011545A1 publication Critical patent/WO1998011545A1/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
    • G11B17/225—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records wherein the disks are transferred from a fixed magazine to a fixed playing unit using a moving carriage

Definitions

  • the invention relates to a playback and / or recording device for disks with a housing, at least one disk magazine with a plurality of disk holders, one disk accommodating one another, lying one above the other in receiving compartments, at least one drive for reading out or writing in information from or onto the plate, a transport device which can be moved in the stacking direction of the plate magazine for the transport of a desired plate back and forth with the associated plate holder between the plate magazine and the drive, and a central control unit.
  • the transport device comprises a support arm for receiving a plate holder with a plate placed therein.
  • a pull-out device of the transport device transports the plate holder with the selected plate onto the support arm on appropriately arranged mounting rails.
  • the transport device brings the plate holder to the drive.
  • the table of contents of the disk loaded into the drive in this way is now read out.
  • the empty plate holder is conveyed back into the plate magazine.
  • a disc player of the type mentioned is already known from the unpublished DE 195 17 661 AI, in which the transport device is assigned a detection device arranged on the housing for the presence of a disc in the disc holder drawn into the transport device.
  • the detection device is designed as a light barrier which comprises an infrared transmitter and an infrared receiver.
  • the disadvantage here is that although the presence or absence of a disk is recognized in a disk holder accommodated in the transport device, it would be desirable to determine beforehand whether a disk holder in the transport device at all, in particular when the playback and / or recording device is repeatedly switched on or after a fault has been rectified or after a mains power failure, is present or not.
  • the transport device is associated with a housing-side detection device for the presence of a plate holder in the transport device.
  • This measure makes it possible to recognize at an early stage whether there is a plate holder in the transport device or not. If the detection device does not holder, the immediate upward or downward movement of the transport device to a plate magazine is caused to receive a plate holder. A time-consuming up and down movement of the empty transport device to the drive and the subsequent attempt to read out information is thus prevented by the detection device. Since the detection device is arranged in a stationary manner, there is a high level of operational reliability with a lack of maintenance.
  • the detection device is designed as a light barrier.
  • the light barrier preferably comprises an infrared transmitter and an infrared receiver.
  • the transmitter is arranged above or below the transport device in the housing and the receiver is correspondingly opposite on an optical axis unaffected by the transport device above the transport device in the housing.
  • the light beam from the light barrier is not interrupted by the movement sequences of the transport device, and it is possible to start the detection process for the presence of a plate holder right at the beginning of the transport process.
  • the light barrier is expediently activated before the upward or downward movement of the transport device begins. If there is no plate holder in the transport device, a light beam from the transmitter preferably acts on the receiver. If a plate holder is present in the transport device, no light beam from the transmitter strikes the receiver due to the blocking effect of the plate. So that a quick signal evaluation can be carried out by the control unit connected to the light barrier, according to a further embodiment of the invention, before the start of an upward or downward movement of the transport device, the receiver is queried for a received or a non-received signal.
  • the receiver emits a signal for further transportation of the disk holder by the transport device to a drive.
  • the receiver expediently gives a signal that the transport device can be moved up or down immediately to a plate magazine for receiving a plate holder.
  • the detection device is designed as an ultrasound system. In this case, only the transmitter and the receiver of the light barrier have to be exchanged accordingly, the operating procedures being the same.
  • the detection device detects the presence of a plate holder in the transport device and additionally the presence of a plate in a plate holder accommodated in the transport device. This enables the presence or absence of both the plate holder in the transport device and a plate in the plate holder to be recognized at the same time. Accordingly, it is useful if the detection device for the presence of a plate holder m Transport device and a plate in the plate holder is designed as a single light barrier. As the plate holder is being pulled into the transport device, it is first recognized whether there is a plate holder in the transport device at all.
  • the plate holder does not yet need to be completely drawn into the transport device for the time being, so that its front edge, viewed in the transport direction, interrupts the radiation area of the light barrier.
  • the same light barrier detects whether there is a plate in the plate holder or not. If there is no plate in the plate holder or if no plate holder is drawn in at all, the receiver gives a signal for the immediate movement of the transport device to a plate magazine for receiving a plate holder holding a plate.
  • the detection device has a further light barrier for this purpose for additionally detecting the presence of a plate in a plate holder accommodated in the transport device.
  • the infrared light is able to penetrate a clear dust protection pane for a plate in the transport device unhindered.
  • FIG. 1 is a schematic front view of a playback and / or recording device according to the invention
  • Fig. 2 is a schematic cross-sectional view of the playback and / or recording device according to Fig. 1 in a first step and
  • Fig. 3 is a schematic cross-sectional view of the playback and / or recording device of FIG. 1 in a second step.
  • the playback and / or recording device 1 according to FIG. 1, by means of which information stored on disks, in particular musical performances, can be optically read and reproduced and information can be written onto disks, has a housing 2 with an operating panel (not shown) which different, has buttons connected to a central control unit, for example a disk selection button, a disk playback button and a stop button.
  • a central control unit for example a disk selection button, a disk playback button and a stop button.
  • a central control unit for example a disk selection button, a disk playback button and a stop button.
  • In the upper right half of the housing 2 there are four drives 3 arranged one above the other for reading or writing information to or from a disk.
  • Each drive 3 is mounted in the form of drawers in guides (not shown) and can therefore be replaced.
  • the tower of the drives 3 is on the other side of the housing 2 opposite a plate magazine 4, which has a plurality of superimposed receiving compartments for storing a corresponding number of plate holders 5 each accommodating a plate.
  • a plate magazine 4 which has a plurality of superimposed receiving compartments for storing a corresponding number of plate holders 5 each accommodating a plate.
  • disk magazine 4 both below the disk magazine 4 and below the tower of the drives 3 arranged. All the plate magazines 4 are inserted into the housing 2 in a drawer-like manner.
  • a transport device 6 which can be moved up and down for a plate holder 5 which holds a plate any drive 3 transportable.
  • the loading drawer 7 receives a plate holder 5 equipped with a plate, which can be gripped by the transport device 6 when the loading drawer is in the inserted state. When the drawer 7 is pulled out, a plate can easily be replaced by hand.
  • An infrared transmitter 8 of a light barrier 9 is arranged in the housing 2 below the transport device 6. On an optical axis unaffected by the transport device 6, the infrared transmitter 8 is opposite an infrared receiver 10 mounted in the housing 2. Before the start of an upward or downward movement of the transport device 6, the light barrier 9 is activated, ie the infrared transmitter 8 emits infrared light and the infrared receiver 10 is on standby. A plate holder 5 mounted in one of the plate magazines 4 and having the desired plate is gripped in a first step according to FIG. The central control unit queries the infrared receiver 10 for a received or not received light signal.
  • the central control unit registers the light signal not received and continues to transport the plate holder 5 with the plate through the grippers 11 of the pull-out device into the transport device 6 to one of the drives 3. After the disk has been loaded into the drive, the information stored on the disk can be read out.
  • the infrared receiver 10 of the light barrier 9 is exposed to a light beam from the infrared transmitter 8.
  • This signal received by the infrared receiver 10 is registered by the central control unit, which then causes an immediate upward or downward movement of the transport device 6 to a receiving compartment of a corresponding plate magazine 4. Subsequently, a plate holder 5 containing a plate can be selected immediately, which is then transported to a drive 3.
  • a check is carried out in a second step according to FIG. 3 to determine whether the plate holder 5 contains a plate or is empty.
  • the infrared transmitter 8 in turn emits an infrared light to the infrared receiver 10. This is queried by the central control unit of the playback and / or recording device for a received or not received light signal.
  • the central control unit initiates the further transport of the plate holder 5 containing the plate by the transport device 6 to a drive 3.
  • the infrared receiver 10 has received a light signal and the central control unit has recognized the reception, it causes the empty plate holder to be transported back into the associated receiving compartment of the plate magazine 4 by means of the pull-out device of the transport device 6, so that it has a plate can be assigned.

Landscapes

  • Automatic Disk Changers (AREA)

Abstract

L'invention concerne un appareil de lecture et d'enregistrement de disques. Cet appareil comprend un boîtier (2), au moins un magasin (4) comportant une pluralité de supports de disque (5) superposés, destinés respectivement à recevoir un disque, et logés dans des compartiments, au moins un mécanisme d'entraînement (3) pour lire ou écrire des informations sur le disque, un transporteur (6) qui est mobile dans le sens d'empilage du magasin (4) et qui sert à transporter le disque souhaité avec son support (5) entre le magasin (4) et le mécanisme d'entraînement (3), et une unité de commande centrale. Pour éviter que le transporteur (6) ne se déplace vers un mécanisme d'entraînement (3) lorsqu'il ne contient pas de support de disque (5), un dispositif détecteur, intégré au boîtier et conçu, de préférence, sous forme de barrière lumineuse à infrarouge (9), est affecté au transporteur (6) pour y détecter la présence d'un support de disque (5).
PCT/DE1997/001843 1996-09-10 1997-08-22 Detecteur de presence d'un support de disque et d'un disque dans un jukebox WO1998011545A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10513115A JP2001500302A (ja) 1996-09-10 1997-08-22 ディスク再生およびもしくは記録装置
EP97941821A EP0925584A1 (fr) 1996-09-10 1997-08-22 Detecteur de presence d'un support de disque et d'un disque dans un jukebox

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996136631 DE19636631A1 (de) 1996-09-10 1996-09-10 Wiedergabe- und/oder Aufzeichnungsgerät für Platten
DE19636631.3 1996-09-10

Publications (1)

Publication Number Publication Date
WO1998011545A1 true WO1998011545A1 (fr) 1998-03-19

Family

ID=7805088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/001843 WO1998011545A1 (fr) 1996-09-10 1997-08-22 Detecteur de presence d'un support de disque et d'un disque dans un jukebox

Country Status (4)

Country Link
EP (1) EP0925584A1 (fr)
JP (1) JP2001500302A (fr)
DE (1) DE19636631A1 (fr)
WO (1) WO1998011545A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258875A1 (fr) * 2001-05-18 2002-11-20 Deutsche Thomson-Brandt Gmbh Magasin à disque

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669614A2 (fr) * 1994-02-26 1995-08-30 Sony Corporation Appareil d'enregistrement et/ou de reproduction à disques avec fonction d'échange de disques
EP0703578A2 (fr) * 1994-09-22 1996-03-27 Aiwa Co., Ltd. Changeur du disques automatiques
EP0724261A2 (fr) * 1994-12-28 1996-07-31 Aiwa Co., Ltd. Changeur automatique
DE19517661A1 (de) * 1995-05-13 1996-11-14 Nsm Ag Wiedergabe- und/oder Aufzeichnungsgerät für Platten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669614A2 (fr) * 1994-02-26 1995-08-30 Sony Corporation Appareil d'enregistrement et/ou de reproduction à disques avec fonction d'échange de disques
EP0703578A2 (fr) * 1994-09-22 1996-03-27 Aiwa Co., Ltd. Changeur du disques automatiques
EP0724261A2 (fr) * 1994-12-28 1996-07-31 Aiwa Co., Ltd. Changeur automatique
DE19517661A1 (de) * 1995-05-13 1996-11-14 Nsm Ag Wiedergabe- und/oder Aufzeichnungsgerät für Platten

Also Published As

Publication number Publication date
DE19636631A1 (de) 1998-03-12
EP0925584A1 (fr) 1999-06-30
JP2001500302A (ja) 2001-01-09

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