Multiple band multiple input multiple output transceiver...

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency

Reexamination Certificate

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Details

C455S324000, C455S333000, C455S552100

Reexamination Certificate

active

07395040

ABSTRACT:
A MIMO transceiver integrated circuit (IC) includes a plurality of multiple band direct conversion transmitter sections, a plurality of multiple band direct conversion receiver sections, and a local oscillation generation module. Each of the plurality of multiple band direct conversion transmitter sections includes a transmit baseband module and a multiple frequency band transmission module. Each of the plurality of multiple band direct conversion receiver sections includes a multiple frequency band reception module and a receiver baseband module. The local oscillation generation module is operably coupled to generate the first frequency band local oscillation when the multiple band MIMO transceiver IC is in a first mode and operably coupled to generate the second frequency band local oscillation when the multiple band MIMO transceiver IC is in a second mode.

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patent: 6728517 (2004-04-01), Sugar et al.
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patent: 2004/0013177 (2004-01-01), Sorrells et al.
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patent: 1 331 742 (2003-07-01), None
“A Single-Chip Digitally Calibrated 5.15-5.825-GHz 0.18-um CMOS Transceiver for 802.11a Wireless LAN” by Vassiliou, et al, IEEE Journal of Solid-State Circuit vol. 38, No. 12, Dec. 2003.
“A Single-Chip Dual-Band Tri-Mode CMOS Transceiver for IEEE 802.11a/b/g WLAN” by Zargari, et al, ISSCC 2004/Session 5/WLAN Transceivers/5.4;2004 IEEE International Solid-State Circuits Conference.

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