发明名称 Apparatus which makes it possible or not possible to start using film at position of an unused frame
摘要 An apparatus such as a camera which makes it possible to start using a film at a position of an unused frame comprises a detecting device which detects a position of an unused frame of a film, and a control device which executes a control operation so that the film can start to be used at the position of the unused frame in accordance with a detection result by the detecting device, the control device making a determination as to a state of noise which acts on the detecting device and varying the control operation in accordance with a result of the determination.
申请公布号 US5995769(A) 申请公布日期 1999.11.30
申请号 US19970786729 申请日期 1997.01.27
申请人 CANON KABUSHIKI KAISHA 发明人 KUMAKURA, TOSHIYUKI
分类号 G03B17/30;G03B17/42;(IPC1-7):G03B7/00;G03B17/24;G03B19/02 主分类号 G03B17/30
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