Transparent file mark

Details Transparent file mark Transparent file mark

G - Physics

11

B

G11B 5/008 (2006.01) G11B 20/12 (2006.01) G11B 27/032 (2006.01) G11B 27/30 (2006.01) G11B 27/32 (2006.01) G11B 27/36 (2006.01)

Patent

CA 2090051

- 21 - TRANSPARENT FILE MARK ABSTRACT Separations between the end of one data file and the beginning of the next data file are recognized, without utilizing an entire data storage block by means of a controlling program for a peripheral recording device monitoring the control information headers of helically stored data on a magnetic tape. When files are stored on the magnetic tape, the controlling program increments an increase of a file section number by one and increments to zero a data block number at the beginning of a new data file. When the recording device is reading the magnetic tape and there is detected an incrementation of the file section number and a zero value for a data block number, a recognition is made that this data indicates the end of one data file and the beginning of another data file. 83128/4

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