Wireless communication system and method using digital calibration to control mixer input swing
US7650119B2 · kind B2 · utility
3Cited by
17References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2006 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Oct 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication device is disclosed wherein the voltage swing of a local oscillator (LO) signal is controlled to prevent overstressing semiconductor devices in a mixer to which the LO signal is supplied. A quadrature divider supplies the LO signal to the mixer. Digital calibration methodology controls the current that the quadrature divider draws from a power supply to set the voltage swing of the LO signal that the quadrature divider generates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.