OFDM communication apparatus

Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions

Reexamination Certificate

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Details

C370S350000

Reexamination Certificate

active

07058006

ABSTRACT:
Synchronization symbol insertion section102inserts a synchronization symbol into a signal digital-modulated by modulation section101. 0 symbol insertion section103inserts a 0 symbol into the signal with the synchronization symbol inserted. The signal with the synchronization symbol and 0 symbol inserted in this way is sent to IFFT section104to be subjected to an IFFT calculation. Then, guard interval insertion section105inserts a guard interval into the IFFT-transformed signal waveform. Then, the signal with the guard interval inserted in this way is D/A-converted by D/A converter106. The D/A-converted signal is subjected to normal radio transmission processing and then transmitted.

REFERENCES:
patent: 4653069 (1987-03-01), Roeder
patent: 5602835 (1997-02-01), Seki et al.
patent: 5771224 (1998-06-01), Seki et al.
patent: 6160791 (2000-12-01), Bohnke
patent: 6160821 (2000-12-01), Dolle et al.
patent: 6169751 (2001-01-01), Shirakata et al.
patent: 6175550 (2001-01-01), van Nee
patent: 6192056 (2001-02-01), Tsuruoka
patent: 6215819 (2001-04-01), Hyakudai et al.
patent: 6246735 (2001-06-01), Sano et al.
patent: 6304611 (2001-10-01), Miyashita et al.
patent: 6314083 (2001-11-01), Kishimoto et al.
patent: 6381251 (2002-04-01), Sano et al.
patent: 6611493 (2003-08-01), Miyashita et al.
patent: 6647025 (2003-11-01), Sudo
patent: 6944119 (2005-09-01), Sudo et al.
patent: 1073241 (2001-01-01), None
patent: 08265291 (1996-10-01), None
patent: 11215097 (1999-08-01), None
patent: 2000068972 (2000-03-01), None
patent: 2000201131 (2000-07-01), None
Akinori Taira et al., “A Study on Timing Synchronization Technique for OFDM,” Technical Report of IEICE, CS99-41, RCS99-33 (Jun. 1999), pp. 49-54, in Japanese, with abstract in English thereof and two pages of comments provided by Applicants.
Nobuaki Mochizuki et al., “Frequency and Timing Error Control Technique using a Broadcast Channel for OFDM,” IEICE, Sogo Taikai (1999, B-5-10), p. 361, in Japanese, with abstract in English thereof and one page of comments provided by Applicants.
Korean Office Action dated Apr. 29, 2002.
English translation of Korean Office Action.
Japanese Office Action dated Mar. 30, 2004, with English translation.

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