Frequency divider circuit
US8633739B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2011 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Jun 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K23/68
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Fractional frequency division is performed by sequentially selecting phase signals for division, where transitioning from a previous phase signal to a next phase signal for division occurs in response to not only the frequency-divided previous phase signal but also a second one of the phase signals. A phase transition that is triggered at least in part in response to a second phase signal having a phase that is greater (with respect to the phase signal sequence) than the phase of the next phase signal can aid minimization of signal glitches. The first frequency-divided signal can be further divided to produce a second frequency-divided signal having a 50-percent duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.