Self-dividing oscillators
US6867656B2 · kind B2 · utility
17Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2003 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Aug 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B27/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system for generating in-phase and quadrature phase signals is provided. The system includes a first and a second differential output, such as from a sinusoidal oscillator. A first injection-locked frequency divider, such as one that uses an LC oscillator in conjunction with cross-coupled transistors, receives the first differential output and generates a in-phase or in-phase output. A second injection-locked frequency divider receives the second differential output and generates a quadrature phase output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.