Method and apparatus for adaptive gain control and antenna load compensation
US9667282B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2016 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Feb 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0416
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses are provided for adjusting a transmission gain in a transmitter of an electronic device. A transmitted signal is received at a digital signal processor (DSP) of the transmitter. The transmitted signal is also transmitted through a transmission path of the transmitter resulting in a load impedance. A looped-back signal is received at the DSP via a loop-back path of the transmitter that returns from the transmission path. The DSP estimates the load impedance from the transmitted signal and the looped-back signal. The DSP sets the transmission gain of the transmission path based on the load impedance and saturation values for a load current and a load voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.