Integrated radio transceiver

Telecommunications – Transmitter and receiver at same station – With a common signal processing stage

Reexamination Certificate

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C455S088000, C455S075000, C455S260000, C455S245200, C455S304000, C455S313000, C375S219000, C375S260000, C375S303000, C375S261000, C375S327000, C375S329000

Reexamination Certificate

active

07076217

ABSTRACT:
A radio transceiver comprises a reception path, a transmission path, and a frequency generator with a programmable phase lock loop. The reception path, the transmission path, and the frequency generator share a maximum amount of common circuitry to facilitate implementation of the entire radio transceiver on a single integrated circuit. The reception path includes an amplifier and a quadrature mixer for producing low intermediate frequency signals. The transmission path can be controlled by either a modulated voltage controlled transmitter or an in-phase and quadrature modulator transmitter.

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