Circuits for generating sweep frequency signal
US9577651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jun 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit to generate a sweep frequency signal that includes a reference frequency source to generate a reference frequency signal, a first frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a first frequency band based on the reference frequency signal, a second frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a second frequency band different from the first frequency band based on the reference frequency signal, a multiple-level switch coupled to outputs of the first frequency combination circuit and the second frequency combination circuit, and a control circuit controlling the first and second frequency combination circuits and the multiple-level switch to output the sweep frequency signal in the first frequency band and the sweep frequency signal in the second frequency band at an output of the multiple-level switch alternately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.