发明名称 Information reproducing apparatus and camera
摘要 In a camera which reproduces information recorded at a magnetic recording part of each frame of a film, a reproducing circuit is arranged to make a discrimination, without being affected by noises, between the presence and absence of information recorded on the film and to lessen errors of reproduction of information, a noise removing filter is arranged to have a variable passband, and a passband switch-over circuit is arranged to vary the passband of the filter between a passband to be set in making the discrimination between the presence and absence of information recorded on the film and a passband to be set in performing a decoding action on the information recorded on the film.
申请公布号 US6480680(B1) 申请公布日期 2002.11.12
申请号 US19990473531 申请日期 1999.12.28
申请人 CANON KABUSHIKI KAISHA 发明人 UEDA TOSHIHARU
分类号 G03B17/24;(IPC1-7):G03B17/24;G03B19/02 主分类号 G03B17/24
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