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    Reproduction of digital audio data optically recorded in a motion picture film
    2.
    发明授权
    Reproduction of digital audio data optically recorded in a motion picture film 失效
    数字音频数据的再现以光学方式记录在电影胶片中

    公开(公告)号：US5553049A

    公开(公告)日：1996-09-03

    申请号：US330374

    申请日：1994-10-27

    申请人： Takashi Nakao

    发明人： Takashi Nakao

    IPC分类号： G03B31/02 ,  G11B7/00 ,  G11B7/003 ,  G11B7/005 ,  G11B3/76 ,  G03B31/06

    CPC分类号： G03B31/02 ,  G11B7/0032 ,  G11B7/005

    摘要： An apparatus for optically reproducing digital speech data recorded on a motion picture film is disclosed. The digital speech data recorded on an emulsifier surface of the motion picture film is illuminated with an illuminating light from the side of a base surface of the motion picture film, and the light transmitted through the emulsifier surface is collected as an incident light by a reproducing lens. With the present apparatus, it is possible to reduce the variations in the volume of the light of the reproduced digital signals otherwise caused by the scratch of dust present on the film base surface.

    摘要翻译： 公开了一种用于光学再现记录在电影胶片上的数字语音数据的装置。 记录在电影胶片的乳化剂表面上的数字语音数据用来自电影胶片底面一侧的照明光照射，透过乳化剂表面的光通过再现被收集为入射光 镜片。 利用本装置，可以减少再现的数字信号的光量的变化，否则由于在基片表面上存在的灰尘的划痕引起。