US Patent No. 9,130,506


Patent No. 9,130,506
Issue Date September 08, 2015
Title Piezoelectric Oscillator
Inventorship Tomoyuki Hosoda, Sayama (JP)
Assignee NIHON DEMPA KOGYO CO., LTD., Tokyo (JP)

Claim of US Patent No. 9,130,506

1. A piezoelectric oscillator comprising a transistor, wherein:
one end of a resonant circuit is connected to a gate of the transistor;
another end of the resonant circuit is grounded via a resistor;
an output terminal is provided for a drain of the transistor;
a piezoelectric resonator for causing reflection by resonance is connected to a source of the transistor;
the piezoelectric resonator serving as a reflective element resonates by use of reflection characteristics and output an oscillation
frequency; and

the oscillation frequency of the piezoelectric resonator and a resonance frequency of the resonant circuit are set to substantially
the same frequency.