发明名称 |
ABSPIELVORRICHTUNG FUER SCHEIBENFOERMIGE INFORMATIONSTRAEGER |
摘要 |
Information is recorded as capacitive variations in a spiral groove on a disc record. The capacitive variations are detected by a tracking stylus and coupled to a stage including a source applying signals to a tuned circuit. The detected capacitive variations cause signals modulated by the record information to develop in the tuned circuit. The stage is controlled so that a predetermined relationship is maintained between the signals applied to the tuned circuit and the tuned circuit response. |
申请公布号 |
AT355102(B) |
申请公布日期 |
1980.02.11 |
申请号 |
AT19730003505 |
申请日期 |
1973.04.19 |
申请人 |
RCA CORPORATION |
发明人 |
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分类号 |
H04R1/02;G11B3/00;G11B9/06;H04N5/18;H04N5/76;H04N5/91;(IPC1-7):H04N5/76 |
主分类号 |
H04R1/02 |
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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