Dynamic magnetic information storage or retrieval – Recording or reproducing an information signal and a control...
Patent
1992-09-30
1993-06-08
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
Recording or reproducing an information signal and a control...
360 7306, G11B 502, G11B 1546
Patent
active
052184870
ABSTRACT:
A computer storage DAT drive which detects the form of a DAT tape and provides an audio signal output in response to an audio DAT tape. The drive rewinds the tape and then plays the tape at a speed that is about 5 to 15 times normal playback speed. During such playback, the tape length is determined and the subcode information is read to determine the format of the tape being played back. If the subcode tape format information reliably indicates the presence of an audio tape, the speed of playback is reduced to normal playback, and audio data interface circuitry is enabled for processing the audio data and providing an audio output signal to a front panel audio jack, for example. If the tape is not recognized as an audio tape within the playback of a predetermined length of tape, playback speed is reduced to normal playback speed and reading of the subcode information continues. If the subcode tape format information indicates that the tape is a computer data storage tape, the tape is read in accordance with the appropriate data storage format. Otherwise, the tape is determined to be blank or erased tape, and playback is stopped.
A front panel eject pushbutton is utilized to provide basic controls for controlling the play of an audio tape, and front panel LEDs provide drive and cartridge status indications, including the presence of an audio format tape.
REFERENCES:
patent: 4837640 (1989-06-01), Ozaki et al.
patent: 5057950 (1991-10-01), Ozaki et al.
Translation of "Sub Code Format and Its Utilization," Adachi, Tatsuya, Matsushita Electronics Industry, Ltd., Radio Research Laboratory, JAS Journal, Nov. 1987, DAT Technology Information Series.
The DAT Conference Standard, Digital Audio Taperecorder System, "DAT Digital Audio Tape," The DAT Conference, c/o Electronic Industries Association of Japan, Engineering Department, Tokyo Chamber of Commerce & Industry Bldg., 2-2, 3-chome, Marunouchi, Chiyoda-ku, Tokyo 100, Japan, Jun., 1987.
"All present and correct," E. Tan and M. Dunstan, Systems International, Feb. 1988, Reed Business Publishing, Quadrant, Sutton, Surrey SM2 5AS.
"DAT data format takes shape," P. Bramhall and M. Dunstan, Systems International, Mar., 1988, Reed Business Publishing, Quadrant, Sutton, Surrey SM2 5AS.
"DAT for data," J. Young, E. Tan, Systems International, Reed Business Publishing, Quadrant, Sutton, Surrey SM2 5AS.
"Designing a Data Storage Format for Digital Audio Tape (DAT) Preliminary Draft-Revision 0.1," K. Odaka, E. T. Tan, B. Vermeulen, Preliminary Draft, Revision 0.1, Aug. 25, 1988.
"Isn't DAT Special?" B. Vermeulen and M. Law, Mini-Micro Systems, Dec. 1988, pp. 84-89.
"Digital audio tape for data storage," E. Tan and B. Vermeulen, IEEE Spectrum, Oct. 1989, pp. 34-38.
3rd Draft-Proposed American National Standard Helical-Scan Digital Computer Tape Cartridge 3.81 mm (0.150 in) for Information Interchange, Jan. 31, 1989.
5rd Draft-Proposed American National Standard Helical-Scan Digital Computer Tape Cartridge 3.81 mm (0.150 in) for Information Interchange, Oct. 31, 1990.
7rd Draft-Proposed American National Standard Helical-Scan Digital Computer Tape Cartridge 3.81 mm (0.150 in) Digital Data Storage (DDS) Recorded Format for Information Interchange, Apr., 1991.
Archive Corporation
Kim Won Tae C.
Psitos Aristotelis
LandOfFree
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