Pulse or digital communications – Spread spectrum
Reexamination Certificate
2005-05-20
2010-12-14
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Spread spectrum
C375S141000, C375S146000, C375S260000, C375S267000, C375S295000, C375S299000
Reexamination Certificate
active
07852903
ABSTRACT:
A wireless transmission device enabled to improve an error rate performance at a receiver, by acquiring at least one of frequency diversity effect and a time diversity effect while keeping the interference resistance which is acquired by diffusion. In this transmission device, a modulation unit (101) modulates data to create a modulation symbol having in-phase components and quadrature components. An IQ individual spreading unit (102) arranges the diffusion chips, which are obtained by spreading the modulation symbol, of the in-phase components and the quadrature components, in areas extending in diffusion domains set individually for the in-phase components and the quadrature components. An IQ combining unit (103) combines the arranged spreading chips of the in-phase components and the quadrature components.
REFERENCES:
patent: 5414728 (1995-05-01), Zehavi
patent: 5956328 (1999-09-01), Sato
patent: 6064663 (2000-05-01), Honkasalo et al.
patent: 6188717 (2001-02-01), Kaiser et al.
patent: 6249517 (2001-06-01), Roh et al.
patent: 2002/0159425 (2002-10-01), Uesugi et al.
patent: 2004/0071105 (2004-04-01), Maeda
patent: 2004/0085946 (2004-05-01), Morita et al.
patent: 2004/0156386 (2004-08-01), Atarashi et al.
patent: 2005/0207384 (2005-09-01), Quick et al.
patent: 2006/0045000 (2006-03-01), Morlier et al.
patent: 2008/0247374 (2008-10-01), Haim
patent: 9153883 (1997-06-01), None
patent: 9214466 (1997-08-01), None
patent: 20047729 (2004-01-01), None
patent: 2004-134978 (2004-04-01), None
Mottier, David, Method of mapping chips of a spread out symbol to sub-channels of a multi-carrier transmission network, Pulication date Apr. 20, 2005, EP 1524793 A1.
Japanese Office Action dated Jun. 9, 2009.
N. Maeda, et al., “VSF-OFCDM Using Two-Dimensional Spreading and Its Performance,” IEICE Technical Report, vol. 102, No. 86, May 2002, pp. 59-64, with partial English translation.
S. Suwa, et al., “Cochannel Interface Canceller Using Different Interleaving for Interphase and Quadrature Components,” OPNET, Mar. 1999, pp. 452, with partial English translation.
PCT International Search Report dated Jul. 19, 2005.
K. Miyoshi, et al.; “A Study on time domain spreading for OFCDM,” Technical Report of IEICE, The institute of electronics, information and communication engineers, RCS 2001-179, Nov. 2001, pp. 13-18.
Fukuoka Masaru
Miyoshi Ken'ichi
Yoshii Isamu
Dickinson Wright PLLC
Fan Chieh M
Lee Siu M
Panasonic Corporation
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