Title:
ARITHMETIC UNIT FOR DETECTED OUTPUT
Document Type and Number:
Japanese Patent JP3866526
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve a problem of a conventional arithmetic unit for correcting a mechanical error of an output of a detection means on the basis of a prescribed input /output characteristics (linear line) that cannot make correction with high accuracy when the input/output characteristics greatly differs from an actual characteristics of the detection means.
SOLUTION: When a digital output of the detection means exceeds an upper limit A stored in a main memory means, the digital output is used for a new upper limit A(a1) and a new lower limit B(a1) is obtained from a virtual line L1-L1 passing through the new upper limit A(a1) and in parallel with a straight line L0-L0. Since an arithmetic output after correction can be obtained from a new input/output characteristics (virtual line L1-L1) on the basis of the new upper limit A(a1) and the new lower limit B(a1), accuracy of the correction can be enhanced.
Inventors:
Youtaro Sakakura
Application Number:
JP2001097877A
Publication Date:
January 10, 2007
Filing Date:
March 30, 2001
Export Citation:
Assignee:
ALPS ELECTRIC CO.,LTD.
International Classes:
G01D5/249; H03M1/10; G01D5/244; G01D5/245; G01R19/00; G05B19/35; (IPC1-7): H03M1/10; G01D5/249; G01R19/00; //G01D5/245
Domestic Patent References:
| JP11027146A | ||||
| JP5205911A |
Attorney, Agent or Firm:
野▲崎▼ 照夫
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