Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2006-06-27
2006-06-27
Tu, Christine T. (Department: 2138)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S701000, C375S242000
Reexamination Certificate
active
07069489
ABSTRACT:
In a communication system in which propagation path error tolerance is improved by switching the modulation method or error correction method adaptively according to the state of the propagation path, signals MX, MY, CX, and CY indicating the modulation method and error correction method used by the transmitting side are transmitted arranged at discrete locations within the same frame. By this means, the possibility of discretely arranged signals MX and MY, or CX and CY, both degrading is made low even if the transmit signal experiences fading or propagation path fluctuations. As a result, it is possible for the modulation method information signal and/or error correction method information signal to be restored correctly on the receiving side.
REFERENCES:
patent: 5497401 (1996-03-01), Ramaswamy et al.
patent: 5715275 (1998-02-01), Emi
patent: 6717934 (2004-04-01), Kaasila et al.
patent: 6891810 (2005-05-01), Struhsaker et al.
patent: 7250116 (1995-09-01), None
patent: 884162 (1996-03-01), None
patent: 11261535 (1999-09-01), None
patent: 200013356 (2000-01-01), None
patent: 2001-197138 (2001-07-01), None
patent: 2002217864 (2002-08-01), None
“Development of an Adaptive Modulation System for Land Mobile Communications - Outline of the Scheme”, Hamaguchi et al., IEICE Communications Society Conference B-5-135, pp. 388, Sep. 1997 together with a partial translation.
Abe Katsuaki
Matsuoka Akihiko
Murakami Yutaka
Orihashi Masayuki
Greenblum & Bernstein P.L.C.
Matsushita Electric - Industrial Co., Ltd.
Tu Christine T.
LandOfFree
Transmission apparatus, reception apparatus, transmission... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission apparatus, reception apparatus, transmission..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission apparatus, reception apparatus, transmission... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3676052