Oscillation circuit and electronic equipment comprising...

Details Oscillation circuit and electronic equipment comprising... Oscillation circuit and electronic equipment comprising...

2006-08-08

2006-08-08

Kinkead, Arnold (Department: 2817)

Oscillators

Electromechanical resonator

Crystal

C331S1160FE, C331S1160FE, C331S074000

Reexamination Certificate

active

07088196

ABSTRACT:
The present invention provides an oscillation circuit which enables a further decrease of power consumption. The oscillation circuit comprises a piezoelectric oscillator, such as a quartz oscillator, for generating voltage that oscillates at a natural frequency, an inverter for amplifying this oscillation voltage, a Schmitt trigger circuit for shaping the waveform of the output of the inverter and outputting oscillation output signals, and a constant current source which is connected to a power supply line from a battery and supplies current to the power supply of the inverter and the Schmitt trigger circuit.

REFERENCES:
patent: 6278336 (2001-08-01), Tinsley et al.
patent: 06-177646 (1994-06-01), None
patent: 11-298248 (1999-10-01), None

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