Method for retrying recording information into a next logical bl

Details Method for retrying recording information into a next logical bl Method for retrying recording information into a next logical bl

1992-07-21

1995-11-21

Lee, Thomas C.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

395439, 395442, 369 54, 369 56, 369 58, 371 102, 3642453, 3642494, 3642593, G06F 1100, G06F 1116

Patent

active

054695465

ABSTRACT:
A method of recording information on a recording medium which is incapable of erasing and overwriting. The method uses an information processing system comprising an information recording apparatus to record and verify information to the recording medium. A controller is also used to control the recording apparatus, and a first computer is connected to the controller through a small computer interface. A plurality of logical blocks are provided on the recording medium, and different addresses are assigned to the blocks. When information is written to the blocks, a good status signal is provided when no error occurs. When an error occurs, the controller suspends the recording of the information, and produces sense data which comprises (i) an information byte indicative of an address of the logical block in which the error first occurred, and (ii) a last written block byte indicative of the address of the logical block in which the recording was last executed before the recording was suspended. When an error occurs, the host computer will send a command for retrying recording into a logical block next to the logical block indicated by the last written block byte of the sensed data. Thus, double recording can be prevented.

REFERENCES:
patent: 3800281 (1974-03-01), Devore et al.
patent: 4901232 (1990-02-01), Harrington et al.
patent: 5111444 (1992-05-01), Fukushima et al.
patent: 5195094 (1993-03-01), Miyasaka
patent: 5218590 (1993-06-01), Miyasaka
patent: 5237553 (1993-08-01), Fukushima et al.

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