Multiphase waveform generator capable of performing phase...

Details Multiphase waveform generator capable of performing phase... Multiphase waveform generator capable of performing phase...

2006-08-29

2006-08-29

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

Reexamination Certificate

active

07099788

ABSTRACT:
The present invention discloses a multiphase waveform generator capable of performing phase calibration, and a related phase calibration method. The disclosed multiphase waveform generator includes a multiphase waveform generating module and a calibrating module. The multiphase waveform generating module receives an input signal and shifts edges of the input signal by a delay time according to a delay parameter to generate a phase-modified signal. The calibrating module is coupled to the multiphase waveform generating module for calibrating the delay time to reduce a difference between a characteristic value of the phase-modified signal and an expected value, which is calculated according to the delay parameter and characteristic values of a first and a second predetermined periodic signal.

REFERENCES:
patent: 2003/0200518 (2003-10-01), Saeki
patent: 2004/0080349 (2004-04-01), Kawahito et al.
patent: 2004/0081053 (2004-04-01), Kojima
patent: 2004/0257949 (2004-12-01), Hsu et al.
patent: 2006/0045222 (2006-03-01), Kim et al.

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