发明名称 |
Information processing device |
摘要 |
An information processing device to which data can be input by the use of a rotary bezel. A pulse-count detection sensor unit 32 and a rotational-direction detection sensor unit 33 read an optical pattern which is formed on the rotary bezel to generate a series of pulse signals. The pulse-count detection sensor unit 32 and the rotational-direction detection sensor unit 33 are arranged such that a phase difference occurs between the signals of the sensor unit 32 and the signals of the sensor unit 33, so that it is possible to detect the rotational direction of the rotary bezel. A data-signal generating element 81 generates a data signal on the basis of the detected rotational angle and the pulse count generated by the pulse-count detection sensor unit 32.
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申请公布号 |
US6575618(B1) |
申请公布日期 |
2003.06.10 |
申请号 |
US19990341902 |
申请日期 |
1999.07.19 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
INOUE SHIGEKI;UZAWA YOSHITO;KURIHARA HAJIME;HAYAKAWA MOTOMU |
分类号 |
G01D5/245;G01J11/00;G04B19/28;G04G21/00;(IPC1-7):G01D5/00 |
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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