发明授权
- 专利标题: Constant wavelength magnetic recording
- 专利标题(中): 恒定波长磁记录
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申请号: US747284申请日: 1976-12-03
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公开(公告)号: US4115786A公开(公告)日: 1978-09-19
- 发明人: Thomas M. Frey , Stephen F. Pond
- 申请人: Thomas M. Frey , Stephen F. Pond
- 申请人地址: CT Stamford
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: CT Stamford
- 主分类号: G03G19/00
- IPC分类号: G03G19/00 ; G11B5/86 ; G11B20/06 ; H04N1/40 ; G11B21/02
摘要:
Constant wavelength magnetic imaging is provided by generating a signal having a frequency proportional to the speed of a rotational recording member, multiplying that frequency up to a higher, desired recording frequency, and phase-locking the higher frequency signal to the unmultiplied lower frequency, thus synchronizing the recording frequency with the motor speed.
公开/授权文献
- USPP11508P Apple tree variety named `KANKI` 公开/授权日:2000-09-12
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