发明名称 |
FM STEREOPHONIC RECEIVER DETECTION APPARATUS AND DISABLING MEANS |
摘要 |
A detector for deriving stereophonic audio difference (L-R) signal from a stereophonic composite signal and matrix amplifier means coupled to the detector for combining the difference signals with audio sum (L+R) signals to produce left (L) and right (R) audio signals. Automatic switching means for transferring the system between monophonic and stereophonic reproduction modes is also provided. The system is adapted for fabrication in integrated circuit form.
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申请公布号 |
US3707603(A) |
申请公布日期 |
1972.12.26 |
申请号 |
USD3707603 |
申请日期 |
1969.12.29 |
申请人 |
RCA CORP. |
发明人 |
ALLEN LEROY LIMBERG |
分类号 |
H04H5/00;H03D1/22;H03D3/00;H04B1/16;H04N9/70;H04S1/00;H04S7/00;(IPC1-7):H04H5/00 |
主分类号 |
H04H5/00 |
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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