Systems involving temperature compensation of voltage...

Details Systems involving temperature compensation of voltage... Systems involving temperature compensation of voltage...

2006-12-20

2008-12-09

Mis, David (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

With intermittent comparison controls

C331S017000, C331S03600C, C331S176000, C331S17700V, C331S179000

Reexamination Certificate

active

07463097

ABSTRACT:
Systems involving temperature compensation of voltage controlled oscillators are provided. In this regard, a representative system incorporates: a voltage controlled oscillator (VCO) having a tuning port and a phase-locked loop (PLL); and a temperature dependent voltage source. The VCO selectively exhibits one of a coarse tuning mode in which the temperature dependent voltage source is electrically connected to the VCO tuning port, and a locked mode in which the temperature dependent voltage source is not electrically connected to the VCO tuning port such that the PLL controls the frequency of the VCO.

REFERENCES:
patent: 6211745 (2001-04-01), Mucke et al.
patent: 6545547 (2003-04-01), Fridi et al.

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