发明名称 |
Display synchronization signal generation apparatus in digital broadcast receiver and decoder |
摘要 |
A display synchronization signal generation apparatus and method is provided which makes it possible to display a stable image irrespective of changes in transmission speed of a received digital broadcast signal by generating a synchronization signal of an image to be displayed independently of a decoding period. A decoder suitable for the display synchronization signal generation apparatus is also provided. The decoder includes a clock signal generation unit, a pixel clock signal generation unit, and a synchronization signal generation unit. The clock signal generation unit generates a plurality of clock signals used for the decoding of the decoder based on a reference clock signal whose speed is controlled according to the transmission speed of a received broadcast signal. The pixel clock signal generation unit generates a display pixel clock signal based on a basic clock signal that is not dependent on the reference clock signal. The synchronization signal generation unit generates a horizontal synchronization signal and a vertical synchronization signal of the image to be displayed, in synchronization with the pixel clock signal generated by the pixel clock signal generation unit.
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申请公布号 |
US7365797(B2) |
申请公布日期 |
2008.04.29 |
申请号 |
US20040944934 |
申请日期 |
2004.09.21 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
CHOI YOUNG-HUN;KIM BYEONG-JIN |
分类号 |
H04N5/04;G09G5/18;H04N5/06;H04N5/12;H04N5/44 |
主分类号 |
H04N5/04 |
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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