Oscillators – Solid state active element oscillator – Transistors
Reexamination Certificate
2009-02-11
2011-10-25
Johnson, Ryan (Department: 2817)
Oscillators
Solid state active element oscillator
Transistors
C331S181000
Reexamination Certificate
active
08044732
ABSTRACT:
A continuously tunable inductor with an inductive-capacitive (LC) voltage controlled oscillator (VCO) having a primary coil. The inductor includes a separate isolated secondary coil, a set of transistors composing a closed loop with the secondary coil, a magnetic coupling between the primary coil of the LC VCO and the secondary coil, an electrical coupling between the LC VCO and the set of transistors composing a closed loop with the secondary coil, and means for electric current injection into the closed loop. Such an inductor can be tuned by modulating a mutual inductance, which is magnetically and electrically coupled with the LC VCO by injection of an electric current (I0).
REFERENCES:
patent: 7098737 (2006-08-01), Fujimoto et al.
patent: 7301407 (2007-11-01), Cho
patent: 2007/0132522 (2007-06-01), Lee et al.
patent: 2004096510 (2004-03-01), None
Rategh, et al., “A CMOS Frequency Synthesizer with an Injection-Locked Frequency Divider for a 5-GHz Wireless LAN Receiver”, May 2000, IEEE Journal on Solid-State Circuits, vol. 35, No. 5, pp. 780-787.
Kossel Marcel A.
Morf Thomas E.
Schmatz Martin Leo
Weiss Jonas R.
Alexanian Vazken
International Business Machines - Corporation
Johnson Ryan
Neff Lily
Zarick Gail H.
LandOfFree
Continuously tunable inductor and method to continuously... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuously tunable inductor and method to continuously..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuously tunable inductor and method to continuously... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4292737