Information recording method for preventing alteration, informat

Details Information recording method for preventing alteration, informat Information recording method for preventing alteration, informat

1998-02-18

2000-05-02

Le, Thien M.

Registers

Coded record sensors

Particular sensor structure

235380, G06K 710

Patent

active

060561971

ABSTRACT:
Information is recorded on an information recording medium including a partition. Predetermined information is recorded on at least the partition of the recording medium, and it is confirmed whether the predetermined information has been normally recorded. When the predetermined information is not normally recorded, rerecording is executed. After the predetermined information is normally recorded, dummy data is recorded on a remaining region other than on a region in which the predetermined information has been recorded, so as to eliminate an unoccupied region in the partition. Recording dummy data eliminates a vacant region of the partition. The dummy data can be a specific character train, a periodic repetition of data, a specific character, or continuation of data.

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patent: 5408456 (1995-04-01), Hosoya
patent: 5461719 (1995-10-01), Hosoya
patent: 5506397 (1996-04-01), Hoshino
patent: 5581630 (1996-12-01), Bonneau, Jr.
patent: 5638345 (1997-06-01), Hosoya

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