发明名称 |
Scanning device calibration system and method |
摘要 |
In one embodiment, a scanning device includes a light source configured to selectively illuminate an area of interest and a light sensitive receiver configured to receive light from the light source and generate signals based on the received light. Control logic is configured to power the light source at a power level, generating mid-tone-scan signals at the light sensitive receiver. Calibration logic is configured to determine a calibration factor for a selected pixel based data including the mid-tone-scan signals.
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申请公布号 |
US7433096(B2) |
申请公布日期 |
2008.10.07 |
申请号 |
US20030376469 |
申请日期 |
2003.02.28 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
CHASE PATRICK J.;JOHNSON CRAIG T. |
分类号 |
H04N1/19;H04N1/46;G06K9/00;H04N1/407 |
主分类号 |
H04N1/19 |
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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