发明名称 |
Low-cost absolute linear optical encoder |
摘要 |
A Low-Cost Absolute Linear Optical Encoder ("LALOE") for determining the absolute position of a read-head within the LALOE relative to a codestrip is disclosed. The LALOE may include an emitter module within the read-head, the emitter module having a plurality of light sources arranged in an light source pattern and a 90° Out-Of-Phase light source; and a detector module within the read-head, the detector module having a plurality of photo-detectors arranged in a photo-detector pattern corresponding to the light source pattern and a 90° Out-Of-Phase photo-detector corresponding to the 90° Out-Of-Phase light source.
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申请公布号 |
US7180430(B2) |
申请公布日期 |
2007.02.20 |
申请号 |
US20040979280 |
申请日期 |
2004.11.01 |
申请人 |
AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD. |
发明人 |
NG KEAN FOONG;TAN HOCK AUN;LOW MOON LEONG;CHIN YEE LOONG |
分类号 |
H03M1/22;G01D5/34 |
主分类号 |
H03M1/22 |
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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