Low frequency AM stereophonic broadcast and receiving apparatus
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United States of America Patent
Stats
-
Nov 24, 1981
Grant Date -
N/A
app pub date -
Mar 21, 1977
filing date -
Mar 21, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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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Family
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Cited Art Landscape
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