发明名称 |
SIGNAL QUALITY MEASUREMENT DEVICE, SPECTRUM MEASUREMENT CIRCUIT, AND PROGRAM |
摘要 |
Spectrum measurement circuit (101) includes: N- (where N is integer equal or greater than 2) phase clock generation circuit (304) for supplying phase-modulated signals in which the phase of a clock signal is shifted by a phase modulation amount each time the settings of the phase modulation amount are switched; mixer circuit (303) for taking the product of a measured signal supplied from a transmitter and the phase-modulated signals supplied from N-phase clock generation circuit (304); average value output circuit (305) for supplying an average voltage value of the output signal of mixer circuit (303); memory (307) for storing the average voltage value supplied from average value output circuit (305) for each phase modulation amount of the N-phase clock generation circuit (304); and arithmetic unit (308) for using the average voltage value for each phase modulation amount of N-phase clock generation circuit (304) to calculate the signal strength of the measured signal.
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申请公布号 |
US2010094577(A1) |
申请公布日期 |
2010.04.15 |
申请号 |
US20070522243 |
申请日期 |
2007.12.18 |
申请人 |
NOSE KOICHI;MIZUNO MASAYUKI |
发明人 |
NOSE KOICHI;MIZUNO MASAYUKI |
分类号 |
G01R23/16;G06F19/00 |
主分类号 |
G01R23/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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