Title:
SIGNAL MEASURING DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2007/099837
Kind Code:
A1
Abstract:
The difference between outputs from terminals can be easily measured. A signal
measuring device (2) receives measurement object signals generated by modulating
different-frequency signals having mutually different frequencies and outputted
from respective output terminal. The device (2) comprises a combiner (22) for
combining measurement object signals outputted from the output terminals,
an orthogonal demodulating section (23) for demodulating the results of the
combination by the combiner (22), an FFT section (24) for expressing the demodulation
results in a frequency range, and a characteristic measuring section (26). The
characteristic measuring section (26) measures data for each frequency on the
demodulation results, acquires output terminal-corresponding data corresponding
to the output terminals from the former data, derives the characteristic of each
output terminal from the output terminal-corresponding data, and acquirers
the difference of the characteristics between the output terminals from the
derivation results.
Inventors:
NAKADA JUICHI (JP)
Application Number:
PCT/JP2007/053237
Publication Date:
September 07, 2007
Filing Date:
February 15, 2007
Export Citation:
Assignee:
ADVANTEST CORP (JP)
NAKADA JUICHI (JP)
NAKADA JUICHI (JP)
International Classes:
G01R29/10; H01Q3/26; H04B7/10
Foreign References:
| JPS62237365A | 1987-10-17 | |||
| JP2005114391A | 2005-04-28 |
Attorney, Agent or Firm:
HOSODA, Masutoshi (7F 5-4, Takanawa 1-chom, Minato-ku Tokyo, JP)
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