Frequency selector apparatus
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United States of America Patent
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-
Mar 3, 1981
Grant Date -
N/A
app pub date -
Sep 12, 1979
filing date -
Sep 22, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A frequency selector apparatus wherein unidirectional input and output surface-acoustic-wave transducers are provided in an acoustic wave propagation path formed on a piezoelectric device and reflecting electrodes, to which a.c. signals are applied respectively, are disposed in the acoustic wave propagation path on opposite sides of the transducers and adjacent thereto.
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