Voltage controlled oscillator and electronic system using the same
US6943638B1 · kind B1 · utility
2Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2005 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Jan 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/03
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage controlled oscillator comprises two XOR logic units and two inverters. A first inverter inverts a first XOR result into a first output signal; a second inverter inverts a second XOR result into a second output signal; a first XOR logic unit performs an XOR logic operation based on an input signal and the second output signal and thus generating the first XOR result; and a second XOR logic unit performs an XOR logic operation based on the first output signal and a reference voltage and thus generates the second XOR result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.