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WO1999042997A1 - Carte d'identification pour cassette de bande magnetique - Google Patents

Carte d'identification pour cassette de bande magnetique Download PDF

Info

Publication number
WO1999042997A1
WO1999042997A1 PCT/JP1999/000726 JP9900726W WO9942997A1 WO 1999042997 A1 WO1999042997 A1 WO 1999042997A1 JP 9900726 W JP9900726 W JP 9900726W WO 9942997 A1 WO9942997 A1 WO 9942997A1
Authority
WO
WIPO (PCT)
Prior art keywords
contacts
board
magnetic tape
tape cassette
cassette
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.)
Ceased
Application number
PCT/JP1999/000726
Other languages
English (en)
Inventor
Tatsuya Yamaguchi
Akihisa Kita
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of WO1999042997A1 publication Critical patent/WO1999042997A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments
    • G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
    • G11B23/087—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using two different reels or cores
    • G11B23/08707—Details
    • G11B23/08714—Auxiliary features

Definitions

  • the present invention relates to an ID board mounted into a magnetic tape cassette as a recognition component for identification of the type, use, etc. of a magnetic tape for recording, in addition to the magnetic tape. More specifically, the present invention relates to a structure of contacts which are formed on one plane of the ID board.
  • the present application is based on Japanese Patent Application No. Hei. 10-39205, which is incorporated herein by reference .
  • a magnetic tape cassette case to which a plane IC board for storage of management information etc. of record contents, or an ID board exclusively for identification of the type, use etc. of the magnetic tape is attached, is known.
  • the IC board or ID board is attached to an inner side of the cassette case so as to be exposed to the outside for transmission and reception of signals for management information or for type, use etc. of the magnetic tape with a recording and reproducing apparatus (hardware) via the exposed contacts of the IC board or ID board. Either of these boards is fitted from the rear side into a storage space that is defined at a predetermined position inside the cassette case.
  • Figs. 4 and 5 show a magnetic tape cassette M which comprises a cassette case 1 made of resin. A magnetic tape (not shown) is accommodated in the cassette case 1.
  • the cassette case 1 includes a lower half 2 and an upper half 3.
  • the lower half 2 has a management-data storage portion 5 at an end portion of a rear end wall 2a thereof for storage of management information on the recorded contents, types, uses, etc. of the magnetic tape.
  • the upper half 3 has a faulty-erasure prevention portion 6 at an end portion o of a rear end wall 3a thereof.
  • the management-data storage portion 5 and the faulty-erasure prevention portion 6 are disposed adjacent to each other.
  • a faulty-erasure prevention piece 20 is provided in the faulty-erasure prevention portion 6 and includes a nail portion 22 exposed through an opening s 21 which is formed in the rear end wall 3a of the upper half 3.
  • an ID board 10 is mounted in the rear end wall 2a of the cassette case 1 so as to form the management-data storage portion 5.
  • a storage o space 15, in which the ID board 10 is thus mounted, is sandwiched by the rear end wall 2a of the lower half 2 and a partition wall 16 which is parallel to the rear end wall 2a.
  • a storage space 28, in which the faulty-erasure prevention piece 20 is accommodated, is formed behind the 5 partition wall 16 and is sandwiched between the partition wall 16 and the backside wall 29.
  • Four openings 11 are formed in the rear end wall 2a of the lower half 2. The openings 11 are divided by frames 17, and correspond to contacts 12a to 12d so as to expose them to the outside as shown in Fig. 5.
  • a dummy board (not shown) may be assembled instead of the ID board.
  • the purpose of the dummy board is to close the openings 11 for exposing the contacts 12a to 12d, and therefore, contacts etc. are not required for the dummy board but the configuration is the same as the ID board.
  • the ID board 10 shown in Figs. 5 and 6 is manufactured in the procedures as below.
  • a semi-L-shaped plane substrate 13 is formed of a glass- epoxy plate with copper foil thereon. Unnecessary portions of the copper foil are removed by etching so that the printed pattern is formed on the glass-epoxy plate. After washing the glass-epoxy plate, the four rectangular copper foils appear at predetermined positions on the front side of the substrate 13. Afterwards, the four rectangular copper foils are gold-plated to form the four contacts 12a to 12d. As shown in Fig. 5, through holes are respectively formed in predetermined portions of the second and fourth contacts 12b and 12d. The through holes respectively penetrate the substrate 13, and are electrically connected to each other by a short-circuit pattern 14 formed on the back side of the substrate 13.
  • a horizontal length L0 is 23.5 mm while a vertical height HO' is 9.8 mm and a vertical height HO on the side where the contacts are provided is 4.6 mm while a horizontal length LO ' is 10.7 mm.
  • the four contacts 12a to 12d are of the same dimensions that a horizontal length is 2.9 mm while a vertical height is 4.05 mm. Functions of the contacts 12a to 12d of the ID board 10 will be described.
  • the first contact 12a identifies whether the tape thickness is 7 microns or not.
  • the second contact 12b identifies whether the tape type is ME tape, MP tape or cleaning tape.
  • the third contact 12c identifies whether the tape use is for civil hardware, for business-use hardware or for computers .
  • the fourth contact 12d serves as a ground (GND) .
  • the tape thickness is identified by reading a resistance value between the first contact 12a and the fourth contact 12d (GND).
  • the first contact 12a and the fourth contact 12d are in an open state.
  • the tape type is identified by reading a resistance value between the second contact 12b and the fourth contact 12d (GND).
  • the second contact 12b and the fourth contact 12d are in a short- circuited state.
  • the tape use is identified by reading a resistance value between the third contact 12c and the fourth contact 12d (GND).
  • the third contact 12c and the fourth contact 12d are in an open state.
  • the above-described ID board 10 needs to be processed for through holes at the second contact 12b and the fourth contact 12d, formed with the short-circuit pattern 14 on the back side of the substrate 13 and coated with the protective covering. Therefore, there is a problem in that processing of both the front and back sides of the substrate 13 increases the number of the processes, and accordingly increases the manufacturing costs .
  • the present invention has been made in order to overcome the above problem, and an object of the present invention is to provide a magnetic tape cassette which realizes reduction of the manufacturing costs through reduction of the number of the processes for the ID board.
  • a magnetic tape cassette which comprises: a cassette case including a partition wall formed therein, and a storage space sandwiched by the partition wall and a rear end wall of the cassette case, the rear end wall having a plurality of openings formed therein; a magnetic tape accommodated in the cassette case; and an ID board including a short-circuit pattern and a plurality of contacts through which information regarding at least the magnetic tape is read by a hardware, the ID board being mounted into the storage space of the cassette case so that the contacts are exposed through the openings , wherein the contacts and the short-circuit pattern are formed on a common plane of the ID board, and at least two of the contacts are electrically connected through the short-circuit pattern.
  • the short-circuit pattern bypasses the openings so as to be located behind the rear end wall when the ID board is mounted into the storage space of the cassette case.
  • the ID board has a plate-like shape.
  • the openings each has a semi- rectangular shape .
  • the contacts are aligned on the ID board .
  • At least one of the contacts is located between the at least two of the contacts .
  • the at least two of the contacts are next to each other.
  • a number of the contacts is four.
  • At least one of the contacts serves as a ground .
  • Fig. 1 is a plan view showing an embodiment of an ID board according to the present invention
  • Fig. 2 is an exploded perspective view showing significant portions of a magnetic tape cassette into which the ID board of Fig. 1 is mountable;
  • Fig. 3 is a partial sectional view illustrating the magnetic tape cassette of Fig. 2;
  • Fig. 4 is a perspective view showing the magnetic tape cassette having the management-data storage portion and faulty-erasure prevention portion;
  • Fig. 5 is an exploded perspective view showing significant portions of the magnetic tape cassette into which the ID board of Fig. 4 is mountable;
  • Fig. 6 is a plan view showing the ID board of Fig. 5.
  • FIG. 1 An embodiment of the magnetic tape cassette of the present invention will now be described in detail with references to Figs . 1 to 3.
  • the components which have the same structures as in the magnetic tape cassette of the background art are given the same symbols to omit the detailed explanations .
  • FIGs. 2 and 3 the significant portions of the cassette case 1 of the magnetic tape cassette M are disclosed.
  • the cassette case 1 includes the lower half 2 and the upper half 3.
  • the lower half 2 has the management-data storage portion 5 at the end portion of the rear end wall 2a thereof for storage of the management information on the recorded contents, types, uses, etc. of the magnetic tape.
  • the upper half 3 has the faulty-erasure prevention portion 6 at the end portion of the rear end wall 3a thereof as shown in Fig. 4.
  • the management- data storage portion 5 and the faulty-erasure prevention portion 6 are disposed adjacent to each other.
  • the faulty- erasure prevention piece 20 is provided in the faulty-erasure prevention portion 6 and includes the nail portion 22 exposed through the opening 21 which is formed in the rear end wall 3a of the upper half 3.
  • An ID board 40 is mounted in the rear end wall 2a of the cassette case 1 so as to form the management-data storage portion 5.
  • the storage space 15, in which the ID board 40 is thus mounted, is sandwiched by the rear end wall 2a and the partition wall 16.
  • the storage space 28, in which the faulty-erasure prevention piece 20 is accommodated, is formed behind the partition wall 16 and is sandwiched between the partition wall 16 and the backside wall 29.
  • the ID board 40 includes the four contacts 42a to 42d which are formed on the front side of a substrate 43 and only the contacts 42b and 42d are electrically connected through a short-circuit pattern 44 on the same surface of the substrate 43.
  • the contacts 42a to 42d and the short-circuit pattern 44 are formed only on the one surface at the front side of the ID board 40 without use of the back side of the ID board 40, it is not necessary to provide the through holes penetrating the ID board 40 and the coating process for forming the protective covering over the back side of the ID board 40.
  • a horizontal length Li is 21.0 mm while a vertical height Hi' is 9.8 mm and a vertical height Hi on the side where the contacts 42a to 42d are provided is 5.0 mm while a horizontal length Ll ' is 11.0 mm.
  • the four contacts 42a to 42d are of the same dimensions that a horizontal length is 2.9 mm while a vertical height is 4.05 mm and the width of the short-circuit pattern 44 is 0.45 mm.
  • the horizontal length Ll is smaller than the horizontal length LO (i.e., Ll ⁇ LO) but the vertical height is tho same.
  • the vertical height Hi is larger than the vertical height HO due to the provision of the short-circuit pattern 44 (i.e. , Hi > HO) .
  • the functions of the contacts 42a to 42d are similar to those of the ID board 10 discussed in the background art section.
  • the first contact 42a is for identification of the tape thickness
  • the second contact 42b is for identification of the tape type
  • the third contact 42c is for identification of the tape use
  • the fourth contact 42d serves as a ground (GND) .
  • the tape thickness is identified by reading a resistance value between the first contact 42a and the fourth contact 42d.
  • the tape type is identified by reading a resistance value between the second contact 42b and the fourth contact 42d.
  • the tape use is identified by reading a resistance value between the third contact 42c and the fourth contact 42d.
  • the ID board 40 is manufactured in the following procedures. Similar to the substrate 13 discussed in the background art section, a semi-L-shaped plane substrate 43 is formed of the glass-epoxy plate with copper foil thereon. Unnecessary portions of the copper foil are removed by etching so that the printed pattern is formed on the glass- epoxy plate. After washing such the glass-epoxy plate, four rectangular copper foils and a pattern for electrically connecting two of the rectangular copper foils appear at
  • the contacts 42a to 42d are o exposed through the openings 11 that are formed in the rear end wall 2a of the lower half 2. Accordingly, it is a condition that contacts of the hardware (not shown) can contact with the contacts 42a to 42d through the openings 11.
  • the short-circuit pattern 44 bypasses the openings 11 so as to be located behind the rear end wall 2a of the lower half 2 (i.e., the short-circuit pattern 44 is not exposed through the openings 11) .
  • the ID board 40 of this embodiment since o the contacts 42b and 42d of the four contacts 42a to 42d are electrically connected by the short-circuit pattern 44 on the same (common) plane at the front side of the substrate 43, the use of the back side of the substrate 43 is not required. Accordingly, through holes penetrating the ID board 40 need 5 not to be formed and thus there is no need for such a process as coating for formation of the protective covering over the back side thereof. As a result, the number of processes for
  • the present invention is not restricted to the above- described mode of embodiment but possible to be embodied in the other modes with appropriate changes.
  • the first contact or the third contact may be connected to the fourth contact by the short-circuit pattern.
  • the first contact may serve as the ground (GND) .
  • the first contact (GND) and the fourth contact may be electrically connected through the short-circuit pattern.
  • the contacts and the short-circuit pattern are formed on one common plane at the front side of the ID board. Therefore, since the back side of the ID board is not used, neither the through holes penetrating the ID board nor the protective covering for coating the back side. As a result, the number of processes for manufacturing the ID board can be reduced, and therefore the manufacturing cost thereof is reduced.

Landscapes

  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

Cassette de bande magnétique composée d'un boîtier dans lequel est situé une cloison de séparation, d'un espace de logement pris en sandwich entre ladite cloison et une paroi d'extrémité arrière du boîtier, cette paroi d'extrémité arrière possédant une pluralité d'ouvertures, d'une bande magnétique logeant dans le boîtier, d'une carte d'identification comprenant une configuration de court-circuit et d'une pluralité de contacts permettant à une machine de lire l'information concernant au moins la bande magnétique. Cette carte d'identification est montée à l'intérieur de l'espace de logement du boîtier, de façon à exposer les contacts à travers les ouvertures. Dans cette cassette de bande magnétique, les contacts et la configuration de court-circuit sont situés dans un plan commun de la carte d'identification et au moins deux de ces contacts sont couplés électriquement à la configuration de court-circuit. Cette dernière, de plus, contourne les ouvertures, de manière à être placée derrière la paroi d'extrémité arrière quand la carte d'identification est montée dans l'espace de logement du boîtier.
PCT/JP1999/000726 1998-02-20 1999-02-18 Carte d'identification pour cassette de bande magnetique Ceased WO1999042997A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3920598A JPH11238356A (ja) 1998-02-20 1998-02-20 磁気テープカセット
JP10/39205 1998-02-20

Publications (1)

Publication Number Publication Date
WO1999042997A1 true WO1999042997A1 (fr) 1999-08-26

Family

ID=12546641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/000726 Ceased WO1999042997A1 (fr) 1998-02-20 1999-02-18 Carte d'identification pour cassette de bande magnetique

Country Status (2)

Country Link
JP (1) JPH11238356A (fr)
WO (1) WO1999042997A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1148499A4 (fr) * 1998-11-30 2007-08-01 Fujifilm Corp Cassette de bande magnetique
WO2007130183A1 (fr) * 2006-04-27 2007-11-15 Hewlett-Packard Development Company, L.P. Système et procédé d'identification d'antenne par un dispositif informatique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0533002A1 (fr) * 1991-09-19 1993-03-24 Deutsche Thomson-Brandt Gmbh Cassette pour appareil d'enregistrement
EP0572953A1 (fr) * 1992-06-02 1993-12-08 Sony Corporation Appareil pour enregistrer et reproduire
EP0572925A1 (fr) * 1992-06-01 1993-12-08 Sony Corporation Cassette d'enregistrement et appareil pour enregistrer et reproduire
EP0583904A2 (fr) * 1992-08-14 1994-02-23 Sony Corporation Cassette à support d'information, dispositif de visualisation et appareil d'enregistrement/reproduction
EP0597726A2 (fr) * 1992-11-13 1994-05-18 Sony Corporation Appareil d'enregistrement et de reproduction et méthode de duplication pour cassette de milieu d'enregistrement
EP0616325A1 (fr) * 1993-03-17 1994-09-21 Sony Corporation Cassette avec support d'enregistrement et appareil d'enregistrement reproduction pour la cassette
EP0622794A2 (fr) * 1993-04-14 1994-11-02 Victor Company Of Japan, Limited Cassette à bande comprenant un empaquetage pour mémoire-IC et système IC de raccordement pour cesse cassette à bande
EP0643390A2 (fr) * 1993-09-14 1995-03-15 Sony Corporation Cassette pour support d'enregistrement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0533002A1 (fr) * 1991-09-19 1993-03-24 Deutsche Thomson-Brandt Gmbh Cassette pour appareil d'enregistrement
EP0572925A1 (fr) * 1992-06-01 1993-12-08 Sony Corporation Cassette d'enregistrement et appareil pour enregistrer et reproduire
EP0572953A1 (fr) * 1992-06-02 1993-12-08 Sony Corporation Appareil pour enregistrer et reproduire
EP0583904A2 (fr) * 1992-08-14 1994-02-23 Sony Corporation Cassette à support d'information, dispositif de visualisation et appareil d'enregistrement/reproduction
EP0597726A2 (fr) * 1992-11-13 1994-05-18 Sony Corporation Appareil d'enregistrement et de reproduction et méthode de duplication pour cassette de milieu d'enregistrement
EP0616325A1 (fr) * 1993-03-17 1994-09-21 Sony Corporation Cassette avec support d'enregistrement et appareil d'enregistrement reproduction pour la cassette
EP0622794A2 (fr) * 1993-04-14 1994-11-02 Victor Company Of Japan, Limited Cassette à bande comprenant un empaquetage pour mémoire-IC et système IC de raccordement pour cesse cassette à bande
EP0643390A2 (fr) * 1993-09-14 1995-03-15 Sony Corporation Cassette pour support d'enregistrement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1148499A4 (fr) * 1998-11-30 2007-08-01 Fujifilm Corp Cassette de bande magnetique
WO2007130183A1 (fr) * 2006-04-27 2007-11-15 Hewlett-Packard Development Company, L.P. Système et procédé d'identification d'antenne par un dispositif informatique
US7589647B2 (en) 2006-04-27 2009-09-15 Hewlett-Packard Development Company, L.P. Computing device antenna identification system and method

Also Published As

Publication number Publication date
JPH11238356A (ja) 1999-08-31

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