Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2005-09-13
2005-09-13
Nguyen, Chau (Department: 2661)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
C370S350000, C370S503000
Reexamination Certificate
active
06944119
ABSTRACT:
Synchronization symbol insertion section102:inserts 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: 5771224 (1998-06-01), Seki et al.
patent: 6091702 (2000-07-01), Saiki
patent: 6160791 (2000-12-01), Bohnke
patent: 6160821 (2000-12-01), Dolle et al.
patent: 6175550 (2001-01-01), van Nee
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: 6625111 (2003-09-01), Sudo
patent: 6771591 (2004-08-01), Belotserkovsky 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
Japanese Office Action dated Mar. 30, 2004, with English translation.
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.
Ishikawa Kimihiko
Sudo Hiroaki
Matsushita Electric - Industrial Co., Ltd.
Nguyen Chau
Pizarro Ricardo
Stevens Davis Miller & Mosher LLP
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