Pulse or digital communications – Systems using alternating or pulsating current – Antinoise or distortion
Reexamination Certificate
2006-09-19
2006-09-19
Tran, Khanh (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Antinoise or distortion
Reexamination Certificate
active
07110465
ABSTRACT:
In a noise canceling method and an apparatus therefor which notices the colored noise looked macroscopically, positively cancels the dominant noise component in the low frequency band, shifts the S/N value to plus, and can extract the reception signal buried in the low frequency band and having a comparatively high level, a signal in which a time axis, an amplitude, and a phase are specified or a zero-point signal is inserted into a transmission signal by an inserter, a noise component is interpolated by using the specified signal or the zero-point signal by a noise canceler, and an originally transmitted signal is regenerated by subtracting the noise component from the reception signal.
REFERENCES:
patent: 5583887 (1996-12-01), Murata et al.
patent: 6215798 (2001-04-01), Carneheim et al.
patent: 6229859 (2001-05-01), Jeong et al.
patent: 6498820 (2002-12-01), Thomson et al.
patent: 6501804 (2002-12-01), Rudolph et al.
patent: 0 798 871 (1997-10-01), None
patent: 0 987 829 (2000-03-01), None
patent: 05-260100 (1993-10-01), None
patent: 10-209889 (1998-08-01), None
patent: 11-168446 (1999-06-01), None
patent: 2000-286817 (2000-10-01), None
Notification of Reasons for Refusal mailed Nov. 5, 2002.
Kaku Takashi
Kurakata Takahiro
Miyazawa Hideo
Murata Hiroyasu
Ahn Sam K.
Fujitsu Limited
Katten Muchin & Rosenman LLP
Tran Khanh
LandOfFree
Noise canceling method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Noise canceling method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise canceling method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3549053