Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Reexamination Certificate
1994-11-28
2001-03-27
Kim, W. Chris (Department: 2753)
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
C360S053000
Reexamination Certificate
active
06208476
ABSTRACT:
TECHNICAL BACKGROUND
The present invention relates to a data recording device of a digital audio tape recorder (DAT) and method therefor, and more particularly to a data record device and method for recording data on a magnetic tape by means of a rotational head without error.
Generally the importance of the data recorded in a DAT-DS (Digital Tape Recorder-Data Storage) compares to that of computer data. Hence, the data containing any errors in the magnetic tape poses a serious problems.
In a conventional DAT, the data delivered from an external system is converted into a DAT format, simply recorded on the magnetic tape by means of a rotational head. Therefore there is no means for detecting whether important data, (e.g., computer data,) except audio data, is correctly recorded on the magnetic tape.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a data recording device and method for recording data on a magnetic tape without errors in a DAT.
According to one aspect of the present invention, the recorded data is immediately reproduced to correct possible errors contained in the recorded data.
According to an aspect of the present invention, a data recording device records data on a magnetic tape by means of a rotational head. A buffer memory buffers the data received through an input/output unit, and a controller generates a control signal for controlling the data record device to recording and reproduce data on and from the magnetic tape. A digital signal processor (DSP) converts the data from the buffer memory into a digital audio tape recorder (DAT) format, and a memory stores the converted data from the DSP to compare with the data recorded on the magnetic tape. A recording amplifier amplifies the converted data from the DSP and delivers the amplified data to the rotational head to be recorded on the magnetic tape, and a reproduction amplifier amplifies the data reproduced from the magnetic tape by the rotational head. A data strobe circuit converts the data from the reproduction amplifier into input codes so as to generate distinction reproduction signals and clock signals, and first and second buffers receiving the distinction reproduction signal from the data strobe circuit are switched according to a record/reproduction mode of the controller. A comparing unit compares the distinction reproduction signal received from the first buffer and the data stored in the memory according to a control signal from the controller so as to detect errors in the data from the I/O unit recorded on the magnetic tape.
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Dictionary of Computers, Information Processing, and Telecommunications, 2nd Ed., Jerry M. Rosenberg, John Wiley & Sons, NY, ©1984, 1987 pp. 66-67.
Bushnell , Esq. Robert E.
Kim W. Chris
Samsung Electronics Co,. Ltd.
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