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US 2009/0264074 A1Published application
Integrated Multimode Radio and Components Thereof
AssigneeBroadcom Corporation
InventorsHooman Darabi, Brima Ibrahim, Ahmadreza Rofougaran
Life of this patent
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Abstract
An integrated multimode radio includes a multimode receiver and a multimode transmitter. The multimode receiver includes a shared receiver front-end, a receiver multiplexor, and a plurality of receiver IF stages. The multimode transmitter includes a shared transmitter front-end, a transmitter multiplexor, and a plurality of transmitter IF stages.
Claims7
An integrated multi-mode radio receiver comprises:
- shared front-end coupled to receive a radio frequency (RF) signal that is modulated in accordance with one of a plurality of operational modes, wherein the shared front-end converts the RF signal into one of a plurality of intermediate frequency (IF) signals or into a baseband frequency signal based upon a selection signal that is indicative of the one of the plurality of operational modes;
- and
- multiplexor coupled to the shared front-end, wherein the multiplexor is operable to provide the one of the plurality of IF signals or the baseband frequency signal to one of a plurality of stages based upon the selection signal.
An integrated multi-mode radio receiver comprises:
- shared front-end receiving a radio frequency (RF) signal and to produce therefrom one of a plurality of intermediate frequency (IF) signals based on an operational selection signal;
- first section including first filtering module and first amplifying module, wherein gain of the first amplifying module is programmable over an IF gain range based on a gain setting signal, wherein the first filtering module is coupled to filter the one of the plurality of IF signals into a first filtered IF signal, wherein the first amplifying module amplifies the first filtered IF signal based on a gain programmed in accordance with the gain setting signal to produce a first IF signal, wherein the IF gain range and the range of gain are based on performance requirements for converting the RF signal into the first signal;
- second section including second filtering module and second amplifying module, wherein gain of the second amplifying module is set to a gain within the IF gain range, wherein the second filtering module is coupled to filter another one of the plurality of IF signals into a second filtered IF signal, wherein the second amplifying module amplifies the second filtered IF signal to produce a second signal;
- and
- multiplexor coupled to the shared front-end, the first section, and the second section, wherein the multiplexor provides the one of the plurality of IF signals to the first section and provides the another one of the plurality of IF signals to the second section based on the operational selection signal.
2 more elements
Dependencies are inferred from the claim text.