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US 8,149,952 B2Granted
Multi-mode receiver
AssigneeSkyworks Solutions, Inc.
InventorsBala Ramachandran, Aravind Loke
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Abstract
A multi-mode receiver system for processing signals based on a plurality of systems is disclosed. Embodiments of the invention provide for a shared architecture for processing baseband signals corresponding to a plurality of systems.
Claims33
A method for receiving signals based on a plurality of systems, the method comprising:
- converting a first signal based on a first system to a first baseband signal;
- converting a second signal based on a second system to a second baseband signal;
- processing the first baseband signal using baseband components;
- and
- processing the second baseband signal using the baseband components, wherein processing the first baseband signal and the second baseband signal comprises selectively filtering and selectively DC-offset correcting the first and second baseband signals, wherein selectively filtering and selectively DC-offset correcting comprises selecting different filtering bandwidths and different DC-offset correcting bandwidths based on which system baseband signal is to be processed.
2 more elements
A multi-mode receiver system for processing signals based on a plurality of systems, comprising:
- a baseband section configured to process a first baseband signal based on a first system using baseband components, wherein the baseband section is further configured to process a second baseband signal based on a second system using the baseband components, wherein the baseband components comprise bandwidth-switchable low-pass filters and bandwidth-switchable DC-offset correction elements.
A transceiver, comprising:
- means for transmitting signals;
- means for receiving signals, wherein the means for receiving includes pre-converting processing means;
- means for converting a first signal based on a first system to a first baseband signal;
- means for converting a second signal based on a second system to a second baseband signal;
- and
- means for processing the first baseband signal, wherein the means for processing the first baseband signal is used for processing the second baseband signal, wherein the means for processing the first baseband signal comprises means for selectively filtering and means for selectively DC-offset correcting the first and second baseband signals, wherein the means for selectively filtering and the means for selectively DC-offset correcting comprises means for selecting different filtering bandwidths and means for selecting different DC-offset correcting bandwidths based on which system baseband signal is to be processed.
3 more elements
A multi-mode receiver system, comprising:
- a code-division multiple access system having a common baseband system, wherein the common baseband system includes a direct current (DC)-correction element configured to include switchable bandwidths;
- and
- a digital-broadcast system that shares the common baseband system with the code-division multiple access system.
Dependencies are inferred from the claim text.