Data processing: measuring – calibrating – or testing – Measurement system – Dimensional determination
Reexamination Certificate
2005-05-17
2005-05-17
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Dimensional determination
C033S503000, C345S443000
Reexamination Certificate
active
06895359
ABSTRACT:
The object of the invention is to provide a method, a program and a device that can set accurately and easily the origin of the coordinate system of a workpiece based on the result obtained by a surface texture measuring machine scanning over a feature area on the surface of the workpiece. The device comprises a data inputter for inputting data obtained by scanning a feature area including at least a feature point area and a non-feature point area of the surface of a workpiece, a feature point selector for extracting the feature points of the data by statistically processing the data inputted into the data inputter and an origin setter for setting the origin of a workpiece coordinate system relative to an origin setting target point of the workpiece based on the coordinate values of the feature point obtained by the feature point selector.
REFERENCES:
patent: 5117757 (1992-06-01), Marks
patent: 5432703 (1995-07-01), Clynch et al.
patent: 6062948 (2000-05-01), Schiff et al.
patent: A 11-339052 (1999-12-01), None
patent: A 2000-331171 (2000-11-01), None
Kojima Tsukasa
Sakurada Junji
Tamai Toshiyuki
Barlow John
Mitutoyo Corporation
Vo Hien
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