Method and device for dividing a frequency signal
US8149028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2009 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Mar 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K23/54
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for dividing a frequency includes the steps of receiving a first signal having a first frequency as a clock input to a first digital counter and outputting a second signal as a clock input to a second digital counter having a higher counting capacity than the first counter. The output occurs when the first counter reaches a first number of count cycles. The method also includes generating a third signal having a high cycle and a low cycle, which are determined at least as a function of the first number of count cycles. Depending on a desired division ratio, the high and low cycles may also be a function of a second number of count cycles associated with the second counter. The third signal has a frequency lower than the first frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.