Method and apparatus for judging an error in reading data record

Details Method and apparatus for judging an error in reading data record Method and apparatus for judging an error in reading data record

1998-07-13

2000-09-26

Lee, Eddie C.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

396119, G03B 2752, G03B 1724

Patent

active

061249211

ABSTRACT:
A method for judging an occurrence of an error when reading magnetic data obtained by scanning magnetic recording portions provided in conformity with the respective frames of a photographic film F by a magnetic data reader. The method comprises detecting whether or not a read state of the magnetic data has changed between successive frames, counting the number of changes in the read state and judging whether or not a data read error has occurred by comparing a count value with a judgment reference number.

REFERENCES:
patent: 5214468 (1993-05-01), Seto
patent: 5416546 (1995-05-01), Izukawa
patent: 5727240 (1998-03-01), Mizumoto et al.
patent: 5758216 (1998-05-01), Arnold
patent: 5847811 (1998-12-01), Tsujimoto et al.

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