Phase-locked loop circuit as well as a voltage-controlled...

Details Phase-locked loop circuit as well as a voltage-controlled... Phase-locked loop circuit as well as a voltage-controlled...

2006-10-10

2006-10-10

Young, Brian (Department: 2819)

Oscillators

Solid state active element oscillator

Transistors

C331S143000, C331S114000

Reexamination Certificate

active

07119627

ABSTRACT:
A phase-locked loop circuit comprises a voltage-controlled oscillator with at least one resonator circuit for driving the oscillator to an output frequency which is a multiple of the resonator frequency. The voltage-controlled oscillator is connected to a phase-locked loop comprising frequency control means for controlling the output frequency of the oscillator. According to the invention the resonator circuit comprises at least one adjustable component and the frequency control means are coupled into the resonator circuit for controlling the resonator frequency of the resonator circuit. The invention moreover relates to a voltage-controlled oscillator as used in this phase-locked loop circuit.

REFERENCES:
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patent: 6268778 (2001-07-01), Mucke et al.
patent: 6326854 (2001-12-01), Nicholls et al.
patent: 6327463 (2001-12-01), Welland
patent: 1005151 (2000-05-01), None
patent: 2 361 122 (2001-10-01), None
Hiroyuki Yabuki et al., “An Experimental Study On Frequency Synthesizers Using Push-Push Oscillators”, 2334c IEICE Transactions on Electronics E76-C (1993) Jun., No. 6, Tokyo, JP, pp. 932-937.
Hiroyuki Yabuki et al., “An Experimental Study On Frequency Synthesizers Using Push-Push Oscillators”, 2334c IEICE Transations on Transations on Electronics E76-C (1993) Jun. No. 6, Tokyo, JP, pp. 932-937.

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