Orthogonal frequency division multiplexing (OFDM) receiver,...

Details Orthogonal frequency division multiplexing (OFDM) receiver,... Orthogonal frequency division multiplexing (OFDM) receiver,...

2007-03-19

2010-10-26

Payne, David C (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S340000, C375S347000, C370S203000, C370S206000, C370S208000, C370S210000, C370S335000, C370S342000, C455S101000, C455S132000, C455S296000, C455S500000

Reexamination Certificate

active

07822133

ABSTRACT:
In an OFDM receiver, one of a plurality of antennas is selected based on a ratio X of two moving average integration values (first moving average integration value and second moving average integration value) that are calculated from a non-delay symbol and a delay symbol. It could be said that the second moving average integration value represents excessive false information (that is, whether the state of the transmission line is good). Accordingly, determination of the ratio X between the second moving average integration value and the first moving average integration value and selection of one of the plurality of antennas based on the ratio X enables judgment on whether the state of the transmission line is good even during a period other than a guard interval period Tg, that is, during an effective symbol period Tu.

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Related U.S. Appl. No. 11/729,240, filed Mar. 27, 2007 Inventor: Yoshiaki Nakamura, Title: Orthogonal Frequency Division Multiplexing (OFDM) Receiver, OFDM Reception Method and Terrestrial Digital Receiver.

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