发明名称 |
SCANNER WITH NON-LINEARITY COMPENSATING PIXEL CLOCK |
摘要 |
A scanner system includes a light source for producing a light beam and a scanner for directing the light beam to a spot on a surface to a be scanned and for moving the spot across the surface along a scan line of predetermined length in a series of scan cycles. A reference clock produces a train of M reference pulses during each of the scan cycles such that each of the reference pulses represents the occurrence of a respective one of M segments of the scan cycle. An oscillator produces a train of clock pulses for use in controlling the light beam at a predetermined number of desired pixel positions along the scan line while a frequency control circuit responsive to the reference pulses varies the frequency of the oscillator during the occurrence of each of the M segments of the scan cycle in order to approximate an ideal frequency variation curve the entire scan cycle.
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申请公布号 |
US5193013(A) |
申请公布日期 |
1993.03.09 |
申请号 |
US19900529959 |
申请日期 |
1990.05.29 |
申请人 |
OLIVE TREE TECHNOLOGY, INC. |
发明人 |
SWANBERG, MELVIN E. |
分类号 |
H04N1/053;H04N1/113 |
主分类号 |
H04N1/053 |
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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