Wireless local area network (WLAN) using universal frequency...

Details Wireless local area network (WLAN) using universal frequency... Wireless local area network (WLAN) using universal frequency...

2006-09-19

2006-09-19

Fan, Chieh M. (Department: 2634)

Pulse or digital communications

Transceivers

Modems

C375S328000, C455S137000

Reexamination Certificate

active

07110444

ABSTRACT:
Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal generator, a demodulation/modulation facilitation module, and a MAC interface. The WLAN receiver includes at least one universal frequency translation module that frequency down-converts a received EM signal. In embodiments, the UFT based receiver is configured in a multi-phase embodiment to reduce or eliminate re-radiation that is caused by DC offset. The WLAN transmitter includes at least one universal frequency translation module that frequency up-converts a baseband signal in preparation for transmission over the wireless LAN. In embodiments, the UFT based transmitter is configured in a differential and multi-phase embodiment to reduce carrier insertion and spectral growth.

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