Quadrature signal generation with phase error correction
US6768364B2 · kind B2 · utility
11Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2002 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Sep 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/0192
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A quadrature signal generator includes a polyphase filter where four resistive elements and four variable capacitive elements are connected alternately in series to form a loop; and a phase corrector that variably controls the capacitance of the variable capacitive elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.