Negative film transfer apparatus and method for correcting stand

Details Negative film transfer apparatus and method for correcting stand Negative film transfer apparatus and method for correcting stand

1997-03-21

1998-07-14

Marmor, Charles A.

Advancing material of indeterminate length

Processes

Involving registration of material

226 30, 235375, B65H 2318, G06F 1700

Patent

active

057791244

ABSTRACT:
A passing movement analyzer is responsive to a pulse signal from a data reader to calculate the time of passing movement of a negative film. The passing of one frame of the negative film is considered detected when two identification codes of the film are read. When the two identification codes are detected by the passing movement analyzer, a drive signal of a driver contains a number of pulses which differs from that of a standard number, and a correction calculator determines that a transfer error exists and adjusts the pulse setting of the drive.

REFERENCES:
patent: 4110020 (1978-08-01), Johnson et al.
patent: 4264957 (1981-04-01), Pautzke
patent: 4484522 (1984-11-01), Simeth
patent: 4757930 (1988-07-01), Ditto
patent: 4781317 (1988-11-01), Ditto
patent: 5128519 (1992-07-01), Tokuda
patent: 5272352 (1993-12-01), Maetani et al.

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