Phase disciplined, direct digital synthesizer based, coherent signal generator
US9092067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2013 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Feb 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/0335
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A phase coherent signal generator apparatus is disclosed that has fast frequency shifting and numerous phase memory points, outputting a coherent continuous phase signal that includes fast switched multiple different frequency bursts. The apparatus comprises: a clock generator including an input that receives a reference clock signal, an output that supplies a master clock signal, and an output that supplies a slave clock signal; an accumulating digital synthesizer that includes a first input that receives the slave clock signal, a second input that receives a digital frequency tune word signal, a third input that receives a phase tune word signal, a fourth input that receives a reset signal, and an output that supplies a digital coherent continuous phase signal; a master digital synthesizer that includes a first input that receives the master clock signal, a second input that receives the digital frequency tune word signal, a first output that supplies the digital phase tune word signal, and a second output that supplies a reset signal; and a converter that receives the digital coherent continuous phase signal and supplies the coherent continuous phase signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.