Oscillators – Solid state active element oscillator – Transistors
Reexamination Certificate
2006-09-19
2006-09-19
Chang, Joseph (Department: 2817)
Oscillators
Solid state active element oscillator
Transistors
C331S1070SL
Reexamination Certificate
active
07109811
ABSTRACT:
A resonant circuit includes a choke coil, a variable-capacitance diode, coupling capacitors, a resonant capacitor, a resonator defining an inductor element, and a bypass capacitor. An amplifying circuit includes a buffer amplifying transistor, an oscillating transistor, bias resistors, Colpitts capacitors, bypass capacitors, a coupling capacitor, a choke coil, a resonant capacitor, and a resonant inductor. A bias resistor has one end electrically connected to the base of the oscillating transistor and has the other end electrically connected to the ground via the resonator having one end electrically grounded.
REFERENCES:
patent: 5347238 (1994-09-01), Kobayashi
patent: 5945884 (1999-08-01), Nakatsuka
patent: 6104255 (2000-08-01), Goma et al.
patent: 11-074727 (1999-03-01), None
patent: 2002-171130 (2002-06-01), None
patent: 2002-359519 (2002-12-01), None
Official Communication issued in corresponding Korean Patent Application 10-2004-0004713, dated May 25, 2006.
English translation of Official Communication issued in the corresponding Korean Patent Application No. 10-2004-0004713, dated May 25, 2006.
Aramata Tomohide
Oe Osamu
Chang Joseph
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
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