System, method and emulation circuitry useful for adjusting a characteristic of a periodic signal
US8664986B2 · kind B2 · utility
0Cited by
23References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2012 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Jul 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems, methods and circuitry useful for adjusting a periodic signal such as with a voltage controlled oscillator or a delay line. In one series of embodiments, circuits and methods are provided for controlling current flow through first and second parallel paths where an impedance device in one path emulates the impedance characteristics of a different device in the other path. A phase or frequency characteristic of the periodic signal may be adjusted by alternate switching of current through the two paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.