Telecommunications – Transmitter – Carrier amplitude control
Reexamination Certificate
2008-07-01
2008-07-01
Nguyen, Lee (Department: 2618)
Telecommunications
Transmitter
Carrier amplitude control
C455S114300, C330S150000
Reexamination Certificate
active
10578316
ABSTRACT:
A clipping circuit to limit amplitude of an orthogonal baseband signal includes a 16-gonal clipping circuit almost equivalent to a circular clipping circuit. The 16-gonal clipping circuit includes plural stages of series-connected units each including a rectangular clipping circuit and a phase rotating module. To compensate for variation in the signal amplitude due to the rectangular clipping circuits and the phase rotating modules, an amplitude adjuster conducts amplitude scaling for the signal.
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patent: 2003/0104792 (2003-06-01), Doi
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International Search Report mailed Feb. 1, 2005.
Dickstein , Shapiro, LLP.
NEC Corporation
Nguyen Lee
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