Pulse or digital communications – Testing – Signal noise
Reexamination Certificate
2008-05-08
2011-11-08
Phu, Phuong (Department: 2611)
Pulse or digital communications
Testing
Signal noise
C375S149000, C375S150000, C375S346000, C375S343000, C375S285000, C370S252000, C455S226300
Reexamination Certificate
active
08054872
ABSTRACT:
There is provided an apparatus for determining a carrier-to-noise power density ratio (CN0) of a spread spectrum signal. The apparatus includes a signal power calculation unit and a conversion unit. The signal power calculation unit determines a signal power indicator indicative of a signal to noise ratio of the spread spectrum signal. The conversion unit is coupled to the signal power calculation unit and stores a lookup table representing a relationship between the signal power indicator and the carrier-to-noise power density ratio. The conversion unit is operable for converting the signal power indicator to the carrier-to-noise power density ratio according to the lookup table.
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English Translation of Office Action From Japan Patent Office for App No. 2007-267041 Mail Date: Mar. 29, 2011.
English Translation of Office Action From Japan Patent Office for App No. 2007-267041 Mail Date: Aug. 3, 2010.
Hou Jianhui
Huang Haiquan
Yu Bo
Yu Xiaoguang
O2Micro Inc.
Phu Phuong
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