Wave transmission lines and networks – Coupling networks – Electromechanical filter
Reexamination Certificate
2005-06-13
2009-06-23
Le, Don P (Department: 2819)
Wave transmission lines and networks
Coupling networks
Electromechanical filter
C333S197000
Reexamination Certificate
active
07551044
ABSTRACT:
To provide an electromechanical signal selection device which can be miniaturized and highly integrated and which can selectively output only a signal of a predetermined frequency without providing any sensitive vibration sensing mechanism, and electric equipment using the electromechanical signal selection device.A micro-vibrator serving as a resonator is provided. The micro-vibrator can be excited by an external force to excite vibration of the micro-vibrator. A material whose physical property is changed in accordance with a structural change is used as the micro-vibrator. Thus, a sensitive electromechanical signal selection device is obtained.
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Le Don P
Panasonic Corporation
Pearne & Gordon LLP
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