Receiver having a surface elastic wave high frequency amplifier with a frequency-controlled pump oscillator
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United States of America Patent
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Jan 17, 1984
Grant Date -
N/A
app pub date -
Jun 7, 1982
filing date -
Jun 11, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Receiver comprising at least two output means taking out electric signals corresponding to sound waves propagating in different directions in a surface elastic wave amplifier disposed in the high frequency amplifier stage, wherein phase difference or frequency difference between outputs of said output means is detected and frequency of pumping electric power applied to said surface elastic wave amplifier is controlled in response to output thus detected.
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