发明授权
- 专利标题: Video disc stylus control apparatus
- 专利标题(中): 视盘光笔控制装置
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申请号: US189818申请日: 1980-09-23
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公开(公告)号: US4320487A公开(公告)日: 1982-03-16
- 发明人: Joseph Guarracini , Vincent J. Ruggeri
- 申请人: Joseph Guarracini , Vincent J. Ruggeri
- 申请人地址: NY New York
- 专利权人: RCA Corporation
- 当前专利权人: RCA Corporation
- 当前专利权人地址: NY New York
- 主分类号: G11B21/03
- IPC分类号: G11B21/03 ; G11B3/12 ; G11B21/00 ; G11B21/10 ; G11B17/00
摘要:
A video disc player having a signal pickup stylus for engaging a disc record is equipped with a steering device to provide three degrees of motion to the stylus. The stylus is secured to a stylus arm, the second end of which is compliantly mounted to a support structure. A permanent magnet in the shape of a cruciform with a like magnetic pole at each extremity is secured to the second end of the stylus. Magnetic field producing electric coils are arranged proximate each of the extremities of the cruciform and secured to the support structure so that energization of the coils will apply force to the cruciform causing the stylus arm to pivot about its compliant mounting.
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