Methods and apparatus for generating two-tone calibration signals for performing linearity calibration
US9231716B2 · kind B2 · utility
1Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | May 24, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0331
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Certain aspects of the present disclosure provide methods and apparatus for generating a two-tone signal for performing linearity calibration of a radio frequency (RF) circuit. One example apparatus generally includes a tone generating circuit configured to generate a first single-tone signal from a digital clock signal and a mixer connected with the tone generating circuit and configured to mix the first single-tone signal with a second single-tone signal to provide a two-tone signal having frequencies at a sum and a difference of frequencies of the first and second single-tone signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.