Title:
DIGITAL PHASE-QUADRATURE OSCILLATOR
Document Type and Number:
WIPO Patent Application WO2003069769
Kind Code:
A3
Abstract:
A digital phase-quadrature oscillator generates a series of sine values representative of a sine wave, and a series of cosine values representative of a cosine wave. In each iteration of the oscillator, a sum of the squares of past sine and cosine values is used as a negative feedback term in synthesizing next sine and cosine values, in order to stabilize the amplitudes of the sine and cosine values.
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Inventors:
ROYLE JOHN MARK (GB)
Application Number:
PCT/GB2003/000693
Publication Date:
April 29, 2004
Filing Date:
February 14, 2003
Export Citation:
Assignee:
RADIODETECTION LTD (GB)
ROYLE JOHN MARK (GB)
ROYLE JOHN MARK (GB)
International Classes:
G06F1/02; (IPC1-7): G06F1/02; G06F101/04
Foreign References:
| US5619154A | 1997-04-08 | |||
| US4937773A | 1990-06-26 | |||
| US6140819A | 2000-10-31 | |||
| US3636337A | 1972-01-18 |
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