.~.~.~ Input circuit for electrical output from piezoelectric element
DEFINITION
Classification: 310/318
Input circuit for electrical output from piezoelectric element:
(under subclass 314) Subject matter having electric circuit elements for driving the piezoelectric element for producing an electrical output from the piezoelectric element.
(1) Note. The output may be fed back to the input circuitry or to additional circuitry. Examples of devices in this subclass are circuits in which the piezoelectric element behaves or functions as an electric circuit element rather than being utilized for any mechanical output, e.g., oscillators, resonators.
SEE OR SEARCH THIS CLASS, SUBCLASS:
316, for similar subject matter having, in addition a utilizable mechanical output.
SEE OR SEARCH CLASS
329, Demodulators, particularly
328, for a demodulator including a piezoelectric element. 331, Oscillators,
73, for electron coupled oscillators employing piezoelectric crystals, subclass 116 for transistor oscillators employing an electromechanical resonator which may be of the piezoelectric type, subclass 139 for crystal bridge type oscillators, subclass 155 for oscillators utilizing a piezoelectric crystal to couple an electromechanical oscillator frequency determining resonator to the oscillator system, and subclasses 158+ for piezoelectric crystal type oscillator systems in general.
332, Modulators, especially
139+, for piezoelectric elements used in frequency modulators.
368, Horology: Time Measuring Systems or Devices,
155+, for electric oscillators used in clocks which may utilize a piezoelectric element.
