发明名称 |
Method and apparatus for centering a video signal on a display screen |
摘要 |
A method and apparatus for centering an active video signal on a display screen is described. In one embodiment, the method includes calculating an initial positioning value, which corresponds to an initial position of the active video signal on the display screen. A target positioning value is then determined using linear interpolation. The target positioning value is a rough estimate and provides a big pre-jump of the active video signal from the initial position to a target position, which positions the active video signal near the center of the display screen. A bi-sectional fine tuning technique may then be utilized to center the active video signal on the display screen. This method may be performed using a feedback loop that comprises a microcontroller, a digital signal processor, and an on-screen display circuit.
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申请公布号 |
US6259484(B1) |
申请公布日期 |
2001.07.10 |
申请号 |
US19980165173 |
申请日期 |
1998.10.01 |
申请人 |
SONY CORPORATION;SONY ELECTRONICS, INC. |
发明人 |
JIANG LIBIAO;KIMOTO MASANOBU |
分类号 |
H04N3/227;H04N5/445;H04N17/04;(IPC1-7):H04N5/04;H04N3/22 |
主分类号 |
H04N3/227 |
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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