RF divider using direct digital synthesis
US8451149B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Jul 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0685
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An RF divider directly synthesizes a desired RF as a digital pattern that can be programmed and output at a VCO frequency. An exemplary RF divider comprises a pre-sequencer and a parallel-to-serial converter. The pre-sequencer successively outputs consecutive M-bit sections of a parallel word, where the parallel word comprises one or more copies of a frequency dividing bit pattern defining a frequency divisor. The parallel-to-serial converter performs a parallel-to-serial conversion on the M-bit sections of the parallel word based on the fixed radio frequency to generate an output signal having the desired radio frequency, where the output signal comprises a serial bit stream of the parallel word.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.