Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-03-22
2011-03-22
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S214000, C375S220000
Reexamination Certificate
active
07912112
ABSTRACT:
A spectrum spreading circuit, includes a control portion that repeats a sequence in which the control portion generates a designation signal for designating all of plural frequencies in prescribed order by selecting a next frequency from the frequencies which have not been selected, and a signal generating portion that sequentially generates output signals having the designated frequencies respectively on the basis of the designation signal.
REFERENCES:
patent: 4291409 (1981-09-01), Weinberg et al.
patent: 4583231 (1986-04-01), Puckette
patent: 4952884 (1990-08-01), Tokumo et al.
patent: 6567482 (2003-05-01), Popovic′
patent: 6956431 (2005-10-01), Maejima
patent: 7095260 (2006-08-01), Miyata et al.
patent: 2004/0136440 (2004-07-01), Miyata et al.
patent: 2006/0076997 (2006-04-01), Ogasawara
patent: 1510839 (A) (2004-07-01), None
patent: 7-85524 (1995-09-01), None
patent: 2004-207846 (2004-07-01), None
patent: 2004-282714 (2004-10-01), None
Japanese Patent Office: Notification of Reason for Refusal, (No. 2006-188196; dated Jun. 11, 2008; 3 pgs.).
Extended European Search Report for Application No. 07013391.3, dated Oct. 15, 2009 (7 pgs.).
Notification of First Office Action for Application No. 200710128635.X, dated Sep. 25, 2009 (4 pgs.).
Kawai Hirotaka
Tanaka Yasuomi
Tsuji Nobuaki
Fan Chieh M
Ghulamali Qutbuddin
Pillsbury Winthrop Shaw & Pittman LLP
Yamaha Corporation
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