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US 7,257,380 B2Granted
Integrated multimode radio and components thereof
AssigneeBroadcom Corporation
InventorsHooman Darabi, Brima Ibrahim, Ahmadreza Rofougaran
Life of this patent
Estimating the term…
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.
Claims24
An integrated multi-mode radio receiver comprises:
- shared front-end operably 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 based on a selection signal that is indicative of the one of the plurality of operational modes;
- plurality of intermediate frequency (IF) stages;
- and
- multiplexor operably coupled to the shared front-end and to the plurality of IF stages, wherein the multiplexor provides the one of the plurality of IF signals to one of the plurality of IF stages based on the selection signal.
1 more element
An integrated multi-mode radio receiver comprises:
- shared front-end including a low noise amplifier and a mixing module, wherein gain of the low noise amplifier is programmable over a range of gain based on a gain setting signal, wherein the low noise amplifier is operably coupled to amplify a radio frequency (RF) signal to produce an amplified RF signal, wherein the mixing module converts the amplified RF signal into one of a plurality of intermediate frequency (IF) signals based on an operational selection signal;
- first IF 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 an IF gain setting signal, wherein the first filtering module is operably 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 IF 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 operably 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 operably coupled to the shared front-end, the first IF section, and the second IF section, wherein the multiplexor provides the one of the plurality of IF signals to the first IF section and provides the another one of the plurality of IF signals to the second IF section based on the operational selection signal.
2 more elements
An integrated multi-mode radio transmitter comprises:
- plurality of intermediate frequency (IF) stages, wherein each of the plurality of IF stages generates a corresponding intermediate frequency (IF) signal from a corresponding input signal, wherein each of the plurality of IF stages corresponds to a particular one of a plurality operational modes;
- multiplexor operably coupled to the plurality of IF stages, wherein the multiplexor selects the IF signal of one of the plurality of IF stages based on a selection signal that is indicative of the particular operational mode of the one of the plurality of IF stages;
- and
- shared front-end operably coupled to receive the selected IF signal, wherein the shared front-end converts the selected IF signal into a radio frequency (RF) signal that is modulated in accordance with the particular operational mode of the one of the plurality of IF stages.
1 more element
An integrated multi-mode radio comprising:
- multi-mode receiver that includes:
- receiver front-end operably coupled to receive a radio frequency (RF) signal that is modulated in accordance with one of a plurality of operational modes, wherein the receiver front-end converts the RF signal into one of a plurality of intermediate frequency (IF) signals based on a selection signal that is indicative of the one of the plurality of operational modes;
- plurality of receiver intermediate frequency (IF) stages;
- and
- receiver multiplexor operably coupled to the receiver front-end and to the plurality of receiver IF stages, wherein the receiver multiplexor provides the one of the plurality of IF signals to one of the plurality of IF stages based on the selection signal;
- and
- multi-mode transmitter that includes:
- plurality of transmitter intermediate frequency (IF) stages, wherein each of the plurality of transmitter IF stages generates a corresponding intermediate frequency (IF) signal from a corresponding input signal, wherein each of the plurality of transmitter IF stages corresponds to a particular one of the plurality operational modes;
- transmitter multiplexor operably coupled to the plurality of transmitter IF stages, wherein the transmitter multiplexor selects the IF signal of one of the plurality of transmitter IF stages based on the selection signal that is indicative of the particular operational mode of the one of the plurality of transmitter IF stages;
- and
- transmitter front-end operably coupled to receive the selected IF signal, wherein the transmitter front-end converts the selected IF signal into an outbound radio frequency (RF) signal that is modulated in accordance with the particular operational mode of the one of the plurality of transmitter IF stages.
8 more elements
Dependencies are inferred from the claim text.