发明名称 |
Simple gamma correction circuit for multimedia |
摘要 |
A gamma correction circuit comprising circuit apparatus for approximating in linear translation circuits successive nonlinear portions of a gamma correction curve, apparatus for applying an input luminance (Y) signal to the circuit apparatus, and selection apparatus for selecting signals translated by any of the circuit apparatus as a gamma corrected output signal depending on whether the input signal falls within predetermined ranges approximately corresponding to the nonlinear portions of the gamma correction curve.
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申请公布号 |
US6020921(A) |
申请公布日期 |
2000.02.01 |
申请号 |
US19970851035 |
申请日期 |
1997.05.05 |
申请人 |
ATI TECHNOLOGIES INC. |
发明人 |
ALEKSIC, MILIVOJE;HALL, OSWIN;LI, RAYMOND |
分类号 |
H04N5/202;(IPC1-7):H04N5/202 |
主分类号 |
H04N5/202 |
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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