发明名称 |
Single track encoder for providing absolute position information |
摘要 |
An optical encoder provides absolute position information by inducing a position error in its output signal. The position error can be induced in the signal by shifting a slot in an encoder wheel or encoder strip relative to other slots in the encoder wheel. The position error is detected to identify an absolute position of the encoder wheel or the encoder strip.
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申请公布号 |
US6140636(A) |
申请公布日期 |
2000.10.31 |
申请号 |
US19980046942 |
申请日期 |
1998.03.23 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
NORTON, KIRKPATRICK WILLIAM;CAVANAUGH, CATHY |
分类号 |
G01D5/245;G01D5/347;(IPC1-7):G01D5/34 |
主分类号 |
G01D5/245 |
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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