Multiphase voltage controlled oscillator

Details Multiphase voltage controlled oscillator Multiphase voltage controlled oscillator

2008-01-01

2008-01-01

Lee, Benny (Department: 2817)

Oscillators

Ring oscillators

C331S045000, C327S269000

Reexamination Certificate

active

07315219

ABSTRACT:
A multiphase voltage controlled oscillator includes at least one ring oscillating unit and a resistor ring; the ring oscillating unit is formed by connecting a plurality of phase-delay elements in cascade and the resistor ring is formed by connecting a plurality of resistor elements in cascade; wherein the connecting nodes of each ring oscillating unit are electrically connected to the connecting nodes of the resistor ring such that the ring oscillating unit can generate a plurality of oscillating signals with uniform phase differences.

REFERENCES:
patent: 4337529 (1982-06-01), Morokawa
patent: 4727597 (1988-02-01), Dautriche
patent: 5180994 (1993-01-01), Martin et al.
patent: 6657466 (2003-12-01), Sudjian
patent: 6657502 (2003-12-01), Bushman et al.
patent: 6727741 (2004-04-01), Huang et al.
patent: 6777994 (2004-08-01), Chou et al.

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