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US 5,862,424 AGranted
Photography processing equipment, and device which keeps a film in place in the photography processing equipment and a method for reading/writing information magnetically recorded in film
AssigneeNoritsu Koki Co., Ltd.
InventorsEiji Moto-Oka, Hiroshi Oku
Life of this patent
Estimating the term…
Abstract
A photographic processing apparatus having magnetic heads for reading magnetic record data stored in the magnetic recording tracks of a film and writing desired record data onto the same. The apparatus includes a hold-down mechanism for pressing the magnetic head against the film at an appropriate strength.
Claims7
A film hold-down mechanism comprising:
- a frame;
- at least one magnetic head mounted on said frame on a first side of a film transfer path;
- at least one contact plate positioned on a second side of the transfer path opposite said first side, said at least one contact plate having a film contacting surface and being disposed directly opposite said at least one magnetic head;
- and
- a solenoid disposed on said second side of said film transfer path and connected to said frame for moving said frame to cause said at least one magnetic head to move toward said at least one contact plate and press the film between said at least one magnetic head and said at least one contact plate, wherein said magnetic head moves along a path which is perpendicular to said film contacting surface of said at least one contact plate.
2 more elements
Method of reading magnetic record data stored in a magnetic record track of a film and writing record data onto a magnetic record track of the film, the method comprising:
- a) providing a hold-down mechanism including:
- a frame supporting at least one magnetic head on a first side of a film transfer path;
- at least one contact plate positioned on a second side of the transfer path opposite said first side, said at least one contact plate being disposed opposite said at least one magnetic head;
- and
- a solenoid connected to said frame on said second side of said transfer path for moving said frame to cause said at least one magnetic head to move along a path which is perpendicular to a contact surface of said at least one contact plate;
- b) advancing a film along said film transfer path by drive rollers;
- c) detecting film perforations and translating the detected and counted perforations into a pulse signal;
- d) actuating said film hold-down mechanism in response to the pulse signal to directly press the film against said at least one magnetic head;
- and
- e) writing magnetic record data on the film or reading data previously written on the film.
7 more elements
Dependencies are inferred from the claim text.