公开(公告)号：EP0084358A3

公开(公告)日：1985-01-09

申请号：EP83100299

申请日：1983-01-14

Applicant: TANDBERG DATA A/S

Inventor： Lia, Herman

IPC: G11B05/09 ,  H03K05/153

CPC classification number: G11B20/10212 ,  H03K5/1532

Abstract: Bei dem Verfahren werden die von einem Lesekopf (K) eines Magnetschichtspeichers abgegebenen Lesesignale (L) zunächst in an sich bekannter Weise verstärkt und differen ziert. Wenn die differenzierten Lesesignale (L2) in den Nulldurchgängen eine genügende Steigung aufweisen, wer den an den Nulldurchgängen Datenimpulse (D) erzeugt. Die Überprüfung der Steigung erfolgt durch eine nochmalige Differentation der differenzierten Lesesignale (L2) und durch eine Überprüfung, ob diese zweifach differenzierten Lesesig nale (L3) vorgegebene Schwellenspannungen (5) über- oder unterschreiten.

Abstract translation: 该方法包括以已知方式首先放大和微分由磁存储介质的读取头（K）发射的读取信号（L）。 如果差分读信号（L2）的斜率在它们交叉零的点处足够陡，则在过零点产生数据脉冲（D）。 通过差分读取信号（L2）的进一步分化以及通过检查这些两倍分辨的读取信号（L3）是否超过预定的阈值电压（S）来检查斜率。

公开(公告)号：EP0114246A2

公开(公告)日：1984-08-01

申请号：EP83111834.4

申请日：1983-11-25

Applicant: TANDBERG DATA A/S

Inventor： Rudi, Guttorm ,  Dilling, Jan Erik

IPC: G11B15/66 ,  G11B15/18

CPC classification number: G11B5/54 ,  G11B15/1883 ,  G11B15/6751

Abstract: Das Magnetbandgerät weist einen Einschubkanal auf, in den eine ein Magnetband (13) enthaltende Kassette (1) in Längsrichtung eingeschoben wird. An einer Seite des Einschubkanals sind eine von einem Bandantriebsmotor (18) angetriebene Antriebsrolle (17) und ein Magnetkopf (8) angeordnet. Während des Hineinschiebens der Kassette (1) wird beim Schließen eines Deckels (4) des Magnetbandgeräts eine Staubkappe (7) an der Kassette (1) mittels einer Schwenkanordnung (5, 6) herausgeklappt. Der Magnetkopf (8) ist auf einem um eine Achse (10) schwenkbaren Magnetkopfträger (9) angeordnet, der nach dem Öffnen der Staubkappe (7) hinter diese eingeschwenkt wird und das Magnetband (13) berührt. Nach dem Schließen des Deckels (4) wird die Kassette (1) in einer definierten Arbeitsstellung arretiert. Beim Herausnehmen der Kassette (1) wird nach dem Öffnen des Deckels (4) der Magnetkopf (8) wieder aus seiner Arbeitsstellung in eine Ruhestellung herausgeschwenkt. Anschließend wird die Staubkappe (7) wieder in die Kassette (1) hineingeklappt.

Abstract translation: 该磁带装置包括插入通道，在其中一个含有磁带（13）盒（1）被插入在纵向方向上。 是在插入通道的一侧是磁带驱动马达中的一个（18）驱动的驱动辊（17）和一个磁头（8）。 成在带盒的推动（1）关闭时盖（4）的磁带装置，通过一个枢转组件的装置防尘帽（7）上的盒（1）的（5,6）向外折叠。 磁头（8）的防尘罩（7）枢转这背后并接触所述磁带（13）的开口后设置在围绕轴线（10）枢转的磁头载体（9）上。 关闭盖子（4）之后被锁定在在限定的工作位置的磁带盒（1）。 当盖（4）的磁头的（8）枢转从其工作位置返回到静止位置的开口之后，去除所述盒（1）。 随后，将防尘帽（7）返回到盒（1）被折叠成它。

公开(公告)号：DE3112895C2

公开(公告)日：1987-04-23

申请号：DE3112895

申请日：1981-03-31

Applicant: TANDBERG DATA A/S, OSLO, NO

Inventor： RUDI, GUTTORM, FJELLHAMAR, NO

IPC: G11B5/55 ,  G11B5/56 ,  G11B5/54 ,  G11B21/12

Abstract: A device for positioning a magnetic head in a magnetic tape device includes a head carrier on which the head is mounted, a spiral gearing connected to the head carrier, and an operating device for rotation of the spiral gearing. The head carrier is disposed in a support system comprised of a first bearing rigidly disposed in the housing frame, a bearing plate adjustably attached to the frame and which can be positioned relative to a reference surface, and a second bearing disposed at the bearing plate.

公开(公告)号：DE3732045C2

公开(公告)日：1991-11-07

申请号：DE3732045

申请日：1987-09-23

Applicant: TANDBERG DATA A/S, OSLO, NO

Inventor： SOLBERG, YNGVE, OSLO, NO

IPC: G06T9/00 ,  H03M7/30

公开(公告)号：DE3737286C2

公开(公告)日：1990-12-20

申请号：DE3737286

申请日：1987-11-03

Applicant: TANDBERG DATA A/S, OSLO, NO

Inventor： RUDI, GUTTORM, FJELLHAMAR, NL

IPC: G11B15/675

Abstract: In known magnetic tape recorder devices for cassettes provided with a magnetic tape, the cassette is manually inserted into its final position. The ejection of the cassette ensues upon employment of a lever mechanism or of a spring that is tensed upon insertion of the cassette. In the magnetic tape recorder device of the invention, the cassette is only partially inserted or, respectively, ejected and the further, at least partial draw-in and ejection ensues upon employment of a motor-driven drive capstan that moves the magnetic tape in the cassette in the normal operating condition. The automatic draw-in and ejection of the cassette is possible in the magnetic tape recorder device wherein the drive capstan is laterally arranged.

公开(公告)号：DE3112893C2

公开(公告)日：1987-06-04

申请号：DE3112893

申请日：1981-03-31

Applicant: TANDBERG DATA A/S, OSLO, NO

Inventor： LIA, HERMAN, LI, NO ,  SOLHJELL, ERIK, OSLO, NO

IPC: G11B20/10 ,  G11B20/22 ,  G11B5/09

Abstract: Encoded digital information signals are magnetically recorded on a magnetic recording medium with the assistance of a magnetic head to which write current is supplied. As a function of the encoded information signals, a head change is carried out wherein the current applied to the magnetic head is changed from a first current value to a second current value and vice versa. After each head change, an amplitude of the write current is varied in stepwise amounts from the first or second current value, respectively, and wherein the number of steps depends on a chronological spacing of the head changes from one another. Distortions of resulting read signals are reduced given the method and apparatus of the invention.

公开(公告)号：DE3036737C2

公开(公告)日：1986-10-23

申请号：DE3036737

申请日：1980-09-29

Applicant: TANDBERG DATA A/S, OSLO, NO

Inventor： DANIELSEN, PETTER, DIPL.-ING., 4600 DORTMUND, DE ,  MOEN, TOR, OSLO, NO

IPC: G09G1/00 ,  G09G1/16

Abstract: A system for the generation of a light intensity control signal for a video amplifier of a data display device is disclosed which is connected with a video signal line and a pulse generator. When displaying characters composed of horizontal lines and vertical rows of points on a screen, the lines display a higher brightness than the points. The disclosed system derives from the video signal an analog light intensity control signal for the video amplifier with which the light intensity of the points is readjusted. The system includes a detector device connected with a video signal line, the detector device identifying the signal sequence associated to a point, a line or, a blank and a converter which derives a light intensity control signal therefrom.

公开(公告)号：DE3036852C2

公开(公告)日：1984-02-23

申请号：DE3036852

申请日：1980-09-30

Applicant: TANDBERG DATA A/S, OSLO, NO

Inventor： HELGELAND, OLAV, NITTEDAL, NO ,  RUDI, GUTTORM, FJELLHAMAR, NO ,  ENGELY, ODD, JAREN, NO

IPC: F16M11/12 ,  G12B9/08 ,  H04N5/64

Abstract: A system for setting up a data display device on a work surface, functions for elevation adjusting, for rotating, and for swelling the data display device. The system, which is particularly economical, has a stand with a telescope member adjustable in height thereon. A base plate is attached thereupon, and a rotary plate is supported on the base plate. The rotary plate has an arch 5 upon which sliding elements are guided, and to which the data display device is fastened.

公开(公告)号：DE58907743D1

公开(公告)日：1994-07-07

申请号：DE58907743

申请日：1989-07-05

Applicant: TANDBERG DATA A S OSLO OSLO

Inventor： DAHLERUD OLE CHR

IPC: G11B5/86

Abstract: In the apparatus for duplicating data, there are provided as data source a host processor (1) and as data receiver a plurality of peripheral storage devices (21 ... 2n), which are interconnected via a data and a control bus (3 and 4). In order to be able to transfer data information in parallel, the storage devices must be synchronised. For this, a sequence with individual request signals (e.g. dREQ) of all storage devices and acknowledgement signals (e.g. ACK) of the host processor runs byte-by-byte in such a way that the slowest of the active storage devices determines the chronological execution. The flexibility and serviceability of the apparatus is ensured by the fact that the host processor can activate or deactivate at any time all or only individual storage devices in any desired combination. … Process and apparatus are particularly suitable for copying magnetic data carriers having relative movement. … …

公开(公告)号：DE3347632C2

公开(公告)日：1988-08-04

申请号：DE3347632

申请日：1983-12-30

Applicant: TANDBERG DATA A/S, OSLO, NO

Inventor： SOLHJELL, ERIK, OSLO, NO

IPC: G11B5/55 ,  G11B21/08 ,  G11B21/10 ,  G11B5/56