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US 4,500,183 AGranted
Film cassette and a photographing device using the same
AssigneeOlympus Optical Co., Ltd.
InventorKowji Tanikawa
Life of this patent
Estimating the term…
Abstract
A film cassette provided with a RAM semiconductor memory for storing data relative to a film contained in the film cassette. The data stored in the RAM is updated at every photographing shot, and the updated data is displayed on a display device.
Claims9
A film cassette comprising:
- a film case including an unexposed film chamber section, and a film take-up chamber section having a film take-up spool therein;
- a film initially contained in said unexposed film chamber section and which is moved to said film take-up chamber section by being wound up on said film take-up spool;
- and
- a semiconductor memory means provided on said film case and storing and reading out data relative to the film contained in said film case.
1 more element
A photographing device for use in photographing by means of a film cassette that is able to wind a film contained in said film cassette, comprising:
- a semiconductor memory provided on said film cassette and storing data relative to the film contained in said film cassette;
- shutter driving means for driving a shutter in response to a shutter release action of the photographing device;
- film take-up means for winding up the film in said film cassette;
- recording-reproducing means for renewing the data recorded in said semiconductor memory on said film cassette with every shutter release action, and for reproducing the renewed data;
- and
- display means coupled to said recording-reproducing means for displaying the recorded data reproduced by said recording-reproducing means.
3 more elements
A photographing method comprising:
- providing a film cassette in a photographing device, said film cassette containing a film and being capable of winding said film;
- providing a semiconductor memory on said film cassette;
- storing data relative to said film in said semiconductor memory on said film cassette;
- initiating a shutter release action of the photographing device to drive a shutter to make a photograph;
- winding up the film in said film cassette responsive to said shutter release action;
- renewing the data recorded in said semiconductor memory on said film cassette with every shutter release action so as to update the data relative to the film after each shutter release action;
- reproducing the renewed data;
- and
- displaying the renewed reproduced recorded data.
6 more elements
Dependencies are inferred from the claim text.