System and method for implementing a cellular radio transmitter device
US5898906A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1996 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Oct 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D7/163
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system and method for implementing a cellular radio transmitter device comprises a first oscillator device for generating a first oscillator output signal, a second oscillator device for generating a second oscillator output signal, a power amplifier for amplifying the second oscillator output signal to obtain a transmit signal, a mixer device for combining the first oscillator output signal and the transmit signal to produce a mixer output signal, a phase comparator for comparing the mixer output signal and a transmitter input signal and responsively generating a control signal to control the transmit oscillator, and a feedback path for adding the mixer output signal to the transmitter input signal to compensate for distortion present in the transmit signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.