发明名称 |
Video display apparatus and video display method |
摘要 |
An image display device well suited for a multi-scanning type monitor includes a video signal measurement circuit that detects a horizontal synchronization frequency fH and a vertical synchronization frequency fV from an input image signal that conforms to the GTF Standard. A main control portion calculates timing data relative to a waveform of the signal ( 21 ) using the frequencies fH and fV, calculates adjustment parameters for adjusting a size and a position using this timing data, and sets the adjustment parameters to deflection control circuits, so that an image of the image signal may be displayed well on a CRT. Since the timing data is calculated using the synchronization frequencies fH and fV of the input image signal, it is possible to save on a memory capacity without storing timing data that corresponds to a plurality of different kinds of image signals.
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申请公布号 |
US2005140701(A1) |
申请公布日期 |
2005.06.30 |
申请号 |
US20030479333 |
申请日期 |
2003.12.01 |
申请人 |
TAKASU SHIGERU;IRIE MOTOSUKE |
发明人 |
TAKASU SHIGERU;IRIE MOTOSUKE |
分类号 |
H04N3/223;H04N3/227;H04N3/27;(IPC1-7):G09G5/02 |
主分类号 |
H04N3/223 |
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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