Title:
FEATURE ACQUIRING DEVICE, METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2007/123056
Kind Code:
A1
Abstract:
It is possible to reduce an error caused between a plurality of D/A conversion paths.
[1] An arbitrary signal generator (2) converts a first (second) input digital
pattern into a first (second) output analog pattern. [2] A digitizer (4) converts
the first input analog pattern into a first output digital pattern. [3] A feature
acquiring device (1) includes a first transmission feature deriving unit (12)
for deriving a first transmission feature for converting the first input digital
pattern into an output digital pattern when the input analog pattern is a first
output analog pattern, a second transmission feature deriving unit (14) for
deriving a second transmission feature for converting the second input digital
pattern into an output digital pattern when the input analog pattern is an second
output analog pattern, and a transmission feature ratio deriving unit (16) for
deriving a transmission feature ratio which is a ratio of the first transmission
feature against the second transmission feature.
Inventors:
MUTO MASAHIKO (JP)
ICHIKAWA HIDEKI (JP)
ICHIKAWA HIDEKI (JP)
Application Number:
PCT/JP2007/058122
Publication Date:
November 01, 2007
Filing Date:
April 06, 2007
Export Citation:
Assignee:
ADVANTEST CORP (JP)
MUTO MASAHIKO (JP)
ICHIKAWA HIDEKI (JP)
MUTO MASAHIKO (JP)
ICHIKAWA HIDEKI (JP)
International Classes:
H03M1/10; H03M1/66
Foreign References:
| JP2006086731A | 2006-03-30 | |||
| JPH1117540A | 1999-01-22 | |||
| JPH0621816A | 1994-01-28 | |||
| JPH06303137A | 1994-10-28 | |||
| JPS615625A | 1986-01-11 |
Attorney, Agent or Firm:
HOSODA, Masutoshi (5-4 Takanawa 1-chome,Minato-ku, Tokyo 74, JP)
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