Transmitter

Details Transmitter Transmitter

2011-01-18

2011-01-18

Deppe, Betsy L (Department: 2611)

Pulse or digital communications

Transmitters

C375S260000

Reexamination Certificate

active

07873116

ABSTRACT:
A transmitter is provided which effectively reduces a peak that occurs in transmitting signal electric power. A baseband limiter applies a peak reduction process to digital signals on a plurality of carriers in a baseband. A band limiting filter applies a band limitation process to the digital signal on each of the carriers to which the peak reduction process is applied. Quadrature modulation processing is applied to the digital signal on each of the carriers to which the band limitation process is applied. The digital signals on the carriers to which the quadrature modulation process is applied are added. An intermediate frequency limiter multiplies a signal of the added result by a window function that is weighted depending on the magnitude of the detected peak, and applies a peak reduction process thereto.

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Notification of Reason for Refusal (with English translation) issued Sep. 15, 2009 in corresponding Japanese Patent Application No. 2006-542379.

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