Method and apparatus of verifying accurate writing through compa

Details Method and apparatus of verifying accurate writing through compa Method and apparatus of verifying accurate writing through compa

1994-07-11

1995-11-28

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

360 31, G11B 509, G11B 2736

Patent

active

054713510

ABSTRACT:
A method is disclosed for verifying accurate writing of data onto a recording medium such as a disk. Data, provided to be written on the disk, is written onto the disk. The data written on the disk is read out from the disk. A user data portion in the data to be written on the disk is compared with a user data portion in the data read from the disk, so as to count a first number of errors between the both user data portions. An error correction on the data read from the disk is performed to count a second number of errors with respect to the user data portion in the read data. By comparing the first number of errors with the second number of errors, it is determined if data writing on the disk has been accomplished properly.

REFERENCES:
patent: 5142422 (1992-08-01), Zook et al.
patent: 5255270 (1993-10-01), Yanai et al.
patent: 5267100 (1993-11-01), Ichijo et al.
patent: 5359468 (1994-10-01), Rhodes et al.
"Simplified Floppy-Disc Controller for Microcomputers", Kehl et al., Jun. 1976, pp. 91-97.

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