Digital frequency synthesizer and method with vernier interpolation
US5247469A · kind A · utility
34Cited by
5References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1991 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | May 23, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Digital frequency synthesizer and method in which an output signal of desired frequency is synthesized by periodically incrementing a count in steps corresponding to a desired output frequency, monitoring the count to determine when it reaches a level corresponding to a point at which a transition is desired in the output signal, providing a series of waveforms which are displaced in time and have transitions occurring at different times, and selecting the waveform which has a transition closest to the desired point as the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.