发明名称 |
Encoder interpolation circuit which corrects an interpolation angle between a received sine-wave encoder signal and a cosine-wave encoder signal |
摘要 |
An encoder interpolation circuit for obtaining interpolation data within one wave from two sine-wave encoder signals of different phases comprises interpolative computation means (2) for receiving two sine-wave encoder signals received and carrying out to interpolative computation within one wave, signal deviation detecting means (3) for detecting a deviation of the two sine-wave encoder signals, correction data forming means (4) for outputting correction data corresponding to the detected deviation and the output of the interpolative computation means, and corrective computation means (5) for obtaining the corrected interpolation data by carrying out corrective computation for the output of the interpolative computation means with the correction data and obtaining corrected interpolation data.
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申请公布号 |
US6188341(B1) |
申请公布日期 |
2001.02.13 |
申请号 |
US19980101360 |
申请日期 |
1998.07.08 |
申请人 |
FANUC LTD. |
发明人 |
TANIGUCHI MITSUYUKI;INOUE TADASHI |
分类号 |
G01D5/244;H03M1/20;H03M1/30;(IPC1-7):H03M1/06;H03M1/48 |
主分类号 |
G01D5/244 |
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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