Multi-phase oscillator and multi-phase oscillation signal...

Details Multi-phase oscillator and multi-phase oscillation signal... Multi-phase oscillator and multi-phase oscillation signal...

2005-02-15

2005-02-15

Nguyen, Minh (Department: 2816)

Oscillators

Plural oscillators

Synchronized, triggered or pulsed

C331S057000, C331S172000

Reexamination Certificate

active

06856208

ABSTRACT:
The invention provides a multi-phase oscillator includes a delay loop buffer and plurality of oscillators. The delay loop buffer has N delay units. The oscillator can be a single phase oscillator, a 180° phase difference oscillator or a multiple phase difference oscillator. The N delay units are used to constitute a configuration having 360° phase shift where each delay unit has the same delay time and phase shift. Furthermore, a 180° phase difference oscillator composed of a plurality of inverters and a regenerator can be applied in the multi-phase oscillator.

REFERENCES:
patent: 5018169 (1991-05-01), Wong et al.
patent: 5302920 (1994-04-01), Bitting
patent: 5563554 (1996-10-01), Mizuno
patent: 5592127 (1997-01-01), Mizuno
patent: 6188291 (2001-02-01), Gopinathan et al.

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