发明名称 |
Phonograph cartridge and sensor assembly |
摘要 |
A phonograph cartridge is provided for use on a programmable phonograph turntable or changer. The cartridge includes a housing for mounting an electro-mechanical transducer on the end of a phonograph tone arm and a stylus connected to the electro-mechanical transducer for the reproduction of audio information contained in the groove of a record carrier. A sensor including a light source and a photodetector is mounted on the housing in a position in close proximity to the stylus to provide a unitary cartridge and sensor assembly. The stylus and sensor elements are mounted on a subframe portion which is removable from the housing to facilitate replacement of the stylus or sensor without requiring replacement of the entire phonograph cartridge.
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申请公布号 |
US4119844(A) |
申请公布日期 |
1978.10.10 |
申请号 |
US19760710024 |
申请日期 |
1976.07.30 |
申请人 |
MARVIN GLASS & ASSOCIATES |
发明人 |
MORRISON, HOWARD J.;FLETCHIC, DONALD K.;BAER, RALPH H. |
分类号 |
G11B3/42;(IPC1-7):G01D5/34 |
主分类号 |
G11B3/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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