Camera using a film with a magnetic memory portion

Details Camera using a film with a magnetic memory portion Camera using a film with a magnetic memory portion

1995-06-07

1998-03-03

Blankenship, Howard B.

Photography

With data recording

Magnetically on film or film cassette

396406, G03B 1724

Patent

active

057246238

ABSTRACT:
A camera, which uses a film with a magnetic memory portion, or a control apparatus for such a camera, includes a first detection sensor for detecting a perforation of the film, arranged at a first position where the perforation of the film passes, a second detection sensor for detecting the perforation of the film, arranged at a second position where the perforation of the film passes and which is shifted from the first position in the direction in which the film is transported, and a control circuit for determining a starting time, a first stopping time, a writing frequency of writing information to the magnetic memory portion of the film, and a second stopping time to stop transporting the film, in response to the first and second detection sensors.

REFERENCES:
patent: 4417793 (1983-11-01), Oyokota et al.
patent: 4864322 (1989-09-01), Yamamoto et al.
patent: 5150143 (1992-09-01), Ohno et al.

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