Patent ID: 7092676
Filing Date: 2006-08-15
Classification: H04B

Abstract:
1. A multi-mode, multiple-band transceiver, comprising: a controllable oscillator; a multiple channel transmitter comprising: a first selectable transmit path comprising a first variable gain amplifier, the first selectable transmit path configured to use a direct launch signal transmission technique to generate radio-frequency signals using a first multiple-access communication protocol; a second selectable transmit path comprising a second variable gain amplifier, the second selectable transmit path configured to use a direct launch signal transmission technique to generate radio-frequency signals using a second multiple-access communication protocol; a power amplifier coupled to the first and second variable gain amplifiers; and a modulator comprising: a first low pass filter corresponding to an in-phase component of either the first or second multiple-access communication protocol; a second low pass filter corresponding to a quadrature component of either the first or second multiple-access communication protocol; and modulation electronics connected to the first and second variable gain amplifiers, the first and second low pass filters, and the controllable oscillator.