Apparatus having a film condition judging device

Details Apparatus having a film condition judging device Apparatus having a film condition judging device

Filed on

1997-07-28

Date issued

1999-10-19

Examiner

Hajec, Donald

Patent Class

Registers

SubClass

Coded record sensors

SubSubClass

Particular sensor structure

Other Related Categories

235375, 235494, 396284, 396515, G06K 710, G06K 1700

Type

Patent

Status

active

Patent number

059693223

Description

ABSTRACT:
In an apparatus having a film condition judging device which judges a film condition based on data obtained by reading out bar codes of a bar code disk equipped on a film cartridge, wherein the bar code disk is initially stopped at a predetermined rotational position in response to the film condition, signals which are output from a sensor, are detected at plurality of times during a bar code disk rotation, and so inclinations in changes of the sensor's output are detected, thereby an error signal is distinguished from a correct signal according to the inclinations in the changes. Further, a sensor's output as a correct signal is counted, then the used condition of the film is judged based on the counted value of the sensor's output. Thus, even if there occurs an unstable rotation of the bar code disk, which brings the error signal, the film condition can be correctly judged by one sensor.

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patent: 5321455 (1994-06-01), Cocca
patent: 5347334 (1994-09-01), Smart et al.
patent: 5475454 (1995-12-01), Ezawa
patent: 5701539 (1997-12-01), Amano
patent: 5802411 (1998-09-01), Wakabayashi et al.

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