Apparatus and method for calibration of transmitter in communication device
US8787847B2 · kind B2 · utility
0Cited by
3References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 16, 2012 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/367
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for calibration of a transmitter not having a Surface Acoustic Wave (SAW) filter are provided. The apparatus includes a calibration unit for outputting a detuning signal by which a resonance frequency of a Radio Frequency (RF) circuit is detuned with respect to a transmit operating frequency, and an RF unit for changing the resonance frequency according to the detuning signal and for outputting an out-of-band noise and a transmit signal having a relatively lower power than that of a case where the resonance frequency and the transmit operating frequency are tuned to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.