Method and apparatus for preventing unauthorized recycling of si

Details Method and apparatus for preventing unauthorized recycling of si Method and apparatus for preventing unauthorized recycling of si

1996-09-13

1998-04-07

Metjahic, Safet

Photography

Disposable or recyclable camera

396280, 396297, 396299, 396429, G03B 1736, G03B 2900

Patent

active

RE0357677

ABSTRACT:
When an exposure counter in a single-use camera indicates that the maximum number of exposures on a roll of film in the camera have been exposed, a function of the camera such as an electronic flash capability is disabled to prevent unauthorized recycling of the camera. A reset code must be inputted to the camera to initialize the exposure counter and to enable the electronic flash capability, to permit authorized reuse of the camera with another roll of film. If an invalid code is inputted to the camera, the electronic flash capability is permanently disabled or cannot be re-enabled for a period of time.

REFERENCES:
patent: 3320490 (1967-05-01), Beck et al.
patent: 3953769 (1976-04-01), Sopko
patent: 4455074 (1984-06-01), Wong et al.
patent: 4494114 (1985-01-01), Kaish
patent: 5021811 (1991-06-01), Maurinus et al.
patent: 5049911 (1991-09-01), Shimizu
patent: 5235366 (1993-08-01), Kucmerowski
patent: 5418585 (1995-05-01), Petruchik

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