OFDM receiving device and OFDM receiving method

Details OFDM receiving device and OFDM receiving method OFDM receiving device and OFDM receiving method

2006-07-11

2006-07-11

Ho, Duc (Department: 2665)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S208000, C370S480000

Reexamination Certificate

active

07075949

ABSTRACT:
The time required for switch the channel can be remarkably curtailed. When broadcasting signals through a plurality of information channels with an OFDM system, the plurality of information channels are multiplexed in the sense of frequency and collectively subjected to IFFT modulation for connected transmission instead of subjecting the plurality of information channels independently to OFDM modulation for transmission. With this arrangement, the efficiency of exploitation of frequencies is improved. According to the invention, the OFDM frames are synchronized for each information channel for the purpose of connected transmission. Then, the OFDM receiver can switch the information channel for signal reception, maintaining the frame synchronizing signals.

REFERENCES:
patent: 5694389 (1997-12-01), Seki et al.
patent: 5761190 (1998-06-01), Yamauchi et al.
patent: 5818813 (1998-10-01), Saito et al.
patent: 6314083 (2001-11-01), Kishimoto et al.

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