Dynamic magnetic information storage or retrieval – Head mounting – For adjusting head position
Reexamination Certificate
1999-09-21
2001-08-14
Klimowicz, William (Department: 2652)
Dynamic magnetic information storage or retrieval
Head mounting
For adjusting head position
Reexamination Certificate
active
06275359
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention is based on an appliance for longitudinal multitrack recording and/or replay of signals, in particular of digital signals, using a magnetic tape. One field of application for this technology is, for example, so-called data streamers for producing data copies in relatively large data processing systems.
Such recording and/or replay of data are/is carried out by means of a head arrangement which is arranged on the drive chassis of the appliance and has a stationary multitrack head which has an appropriate number of individual heads for writing and reading the multiple tracks. U.S. Pat. No. 5,027,245 discloses, for example, a recorder which, during multitrack recording of data, allows the data which have just been recorded to be read by a further multitrack head and, furthermore, allows bidirectional multitrack recording and replay of data.
The design of such head arrangements is relatively complex, and they need to be highly accurate, which can be achieved by individual adjustment, particularly when a plurality of multitrack heads are used in one head arrangement. Furthermore, multitrack recording and/or replay of data is dependent on defined and precise guidance of the recording medium with respect to the head arrangement.
SUMMARY OF THE INVENTION
The invention is based on the object of simplifying the design of head arrangements for longitudinal multitrack recording and/or replay with a recording medium in the form of tape, and of improving the guidance of the recording medium.
This object is achieved by the features specified in claim
1
.
The invention is based on the idea of providing a head-mounting device like a plate for the arrangement of multitrack heads, which device has recesses for holding the multitrack heads and adjusting means for adjusting them, and can be arranged in a simple manner, stationary, on the drive chassis of the recorder once the multitrack heads have been arranged in the recesses, in which case the arrangement in the recesses may advantageously entirely or partially include the adjustment of the multitrack heads. Furthermore, the head-mounting device has integrated means for guiding the recording medium in the form of tape, by which means defined relationships are achieved in a simple manner with respect to guidance of the tape height and the loop angle in the region of the head arrangement. The integration of means for guiding the recording medium in the form of tape has the advantage that the design complexity of the appliance is reduced.
The use of such a head-mounting device is particularly advantageous for a data recorder in which the data are written to a recording medium using a magnetic multitrack head comprising magnetic individual heads, but are read by means of a magneto-optical multitrack head, comprising magneto-optical individual heads. According to the invention, a magnetic multitrack head and an optical scanner (which can be engaged with the recording medium) of the magneto-optical multitrack head are arranged in a head-mounting device like a plate for such a recorder. Another or a separate head-mounting device is envisaged for the arrangement of the other elements of the magneto-optical multitrack head, which, like the first head-mounting device mentioned above, is arranged stationary on the drive chassis of the data recorder, order to form the complete head arrangement for longitudinal multitrack recording and/or replay of data signals.
A separate apparatus is envisaged, according to the invention, for the arrangement of the optical scanner, which allows the optical scanner to be positioned automatically in the correct position with respect to the recording medium, and allows it to be arranged on the drive chassis in a simple manner. The arrangement of the optical scanner is preferably carried out first of all, that is to say before the arrangement of a magnetic multitrack head.
The head-mounting device in the form of a plate thus forms the front panel of the head arrangement, which simplifies the arrangement and/or adjustment of multitrack heads.
Developments and further advantages of the invention result from the following description and the dependent claims
2
to
5
.
The invention is furthermore based on the object of specifying a recorder for multitrack recording and/or replay with an improved head arrangement as well as improved guidance of the recording medium.
This object is achieved by the features specified in claim
6
.
REFERENCES:
patent: 3882543 (1975-05-01), Richards
patent: 4287543 (1981-09-01), Banks
patent: 4389689 (1983-06-01), Sims, Jr.
patent: 4970614 (1990-11-01), Nakatsuka
patent: 5392181 (1995-02-01), Lhureau et al.
patent: 5674583 (1997-10-01), Nakayama et al.
patent: 5726964 (1998-03-01), Kesteren et al.
patent: 5734539 (1998-03-01), Vollmann
patent: 5978188 (1999-11-01), Kaaden et al.
patent: 6043958 (2000-03-01), Kaaden et al.
patent: 6067213 (2000-05-01), Oldermann et al.
patent: 1-296430 (1989-11-01), None
patent: 7-065434 (1995-03-01), None
Patent Abstracts of Japan, vol. 13, No. 460, (P-946) Oct. 18, 1989.
Patent Abstracts of Japan, vol. 18, No. 445, (P-1789), Aug. 18, 1994.
Patent Abstracts of Japan, 09138922.
Search Report for German Application No. 19846878.4.
Braun Gunter
Oldermann Klaus
Deutsche Thomson-Brandt GmbH
Klimowicz William
Laks Joseph J.
Sragow Daniel E.
Tripoli Joseph S.
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