发明名称 |
Low frequency AM stereophonic broadcast and receiving apparatus |
摘要 |
Apparatus is described for transmitting and receiving stereophonic broadcasts in the low frequency commercial AM broadcast band. A transmitter is described which modulates the phase and amplitude of a broadcast signal with separate information signals. A pilot tone may also be included to identify the transmission as stereophonic. Receiving means for detecting the PM and AM components to derive separate signals for stereophonic reception are included.
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申请公布号 |
US4332978(A) |
申请公布日期 |
1982.06.01 |
申请号 |
US19800143154 |
申请日期 |
1980.04.23 |
申请人 |
THE MAGNAVOX CONSUMER ELECTRONICS CO. |
发明人 |
STREETER, ROBERT D. |
分类号 |
H04H20/49;(IPC1-7):H04H5/00 |
主分类号 |
H04H20/49 |
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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