Telecommunications – Transmitter and receiver at separate stations – Suppressed carrier wave system
Reexamination Certificate
2011-07-05
2011-07-05
Phu, Sanh D (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Suppressed carrier wave system
C455S114200, C455S114300, C455S126000, C375S260000
Reexamination Certificate
active
07974581
ABSTRACT:
A transmitter suppresses a peak level of a multi-carrier signal produced by synthesizing a plurality of carrier signals. Specifically, a peak level suppression signal for a multi-carrier signal is generated. The generated peak level suppression signal is adjusted in accordance with the levels of respective carriers constituting the multi-carrier signal. And, the adjusted peak level suppression signal for each carrier is subtracted from an input signal, thereby generating a multi-carrier signal whose peak level is suppressed.
REFERENCES:
patent: 5675287 (1997-10-01), Baker et al.
patent: 6931343 (2005-08-01), Webster et al.
patent: 7796687 (2010-09-01), Anvari
Hasegawa Norio
Okada Takashi
Todate Takahiro
Watanabe Jun
Hitachi Kokusai Electric Inc.
Phu Sanh D
Wenderoth , Lind & Ponack, L.L.P.
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