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US 6,480,071 B1Granted
Piezoelectric oscillator and electronic device
AssigneeSeiko Epson Corporation
InventorsYoichi Fujii, Takashi Endo
Life of this patent
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Abstract
A piezoelectric oscillator and an electronic device are provided that can stabilize start characteristics by reducing power noise during a power supply process and which can improve oscillation stability. Included are an oscillation stage so as to generate oscillation pulses by exciting a piezoelectric resonator, an output stage to amplify and then output oscillation pulses, and a start delaying circuit so as to start the output stage later than the oscillation stage only by a selected delay time from a plurality of delay times.
Claims19
A piezoelectric oscillator, comprising:
- an oscillation stage that generates oscillation pulses by exciting a piezoelectric resonator;
- an output stage that amplifies and outputs the oscillation pulses;
- and
- a start delaying circuit having a plurality of delay times so as to start the output stage later than the oscillation stage by a delay time selected from the plurality of delay times.
1 more element
Dependencies are inferred from the claim text.