发明授权
US3851117A Electromagnetic sound pickup for the reproduction of quadrophonic sound recordings and the like 失效
用于生成四声录音和类似声音的电磁声音拾音器

  • 专利标题: Electromagnetic sound pickup for the reproduction of quadrophonic sound recordings and the like
  • 专利标题(中): 用于生成四声录音和类似声音的电磁声音拾音器
  • 申请号: US35218973
    申请日: 1973-04-18
  • 公开(公告)号: US3851117A
    公开(公告)日: 1974-11-26
  • 发明人: KUHN H
  • 申请人: ELECTROACUSTIC GMBH
  • 专利权人: Electroacustic Gmbh
  • 当前专利权人: Electroacustic Gmbh
  • 优先权: DE2230203 1972-06-21
  • 主分类号: H04R11/08
  • IPC分类号: H04R11/08 G11B3/04 H04R11/12
Electromagnetic sound pickup for the reproduction of quadrophonic sound recordings and the like
摘要:
An electromagnetic sound pickup for use in the production of quadrophonic sound recordings and the like includes at least two scanning devices each suited for different frequency ranges. Each scanning device is arranged on a common mounting means which is rotatably supported about its longitudinal axis in a sound pickup housing in such a manner that the pole piece ends associated with each scanning device can selectively be brought into contact with pole piece parts which are fixed with respect to the housing by rotating the mounting means about its longitudinal axis.
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