Wireless communication device

Details Wireless communication device Wireless communication device

2009-03-23

2011-10-04

Timory, Kabir A (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S261000, C375S300000, C375S298000, C375S299000, C375S297000, C375S347000, C375S349000

Reexamination Certificate

active

08031790

ABSTRACT:
A multiband OFDM_UWB transmitting and receiving apparatus is provided in Low-IF configuration to solve problems attributed to a direct-conversion transmitting and receiving apparatus. A Low-IF receiver performs sorting by rotating a sub-carrier after FFT to eliminate the need for frequency conversion using a second local signal and uses the same AD conversion clock as that for a direct conversion receiver. An FFT-free preamble can be detected by using a sequence resulting from previously multiplying an original preamble pattern and an IF frequency together.

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