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    • 4. 发明授权
    • Apparatus for performing various on-screen display functions and methods for each function
    • 用于执行各种屏幕显示功能的装置和用于每个功能的方法
    • US06198468B1
    • 2001-03-06
    • US08969101
    • 1997-11-13
    • Sung-il Cho
    • Sung-il Cho
    • G06F104
    • H04N5/44504H04N9/64H04N21/431Y10S248/917
    • An apparatus having various on-screen display (OSD) functions and methods for each function are provided. The apparatus includes an on-screen display device for receiving serial data having a RAM write address, a ROM address, and the on-screen display functions. The apparatus synthesizes a character signal corresponding to serial data with a background color signal or an external composite video signal in response to an internal or external composite synchronous signal and provides the result to a monitor. The apparatus also includes a synchronous signal generating device for generating internal horizontal and vertical synchronous signals upon receiving a main clock signal, synthesizing means for synthesizing an internal equalization pulse with the internal horizontal and vertical synchronous signals, and means for determining the internal composite synchronous signal or the external composite synchronous signal extracted from the composite video signal. A control device is also part of the OSD apparatus. The control device outputs user serial data to the on-screen display device, generates the main clock signal from a system clock, and controls the on-screen display device and the synchronous signal generating device.
    • 提供具有各种屏幕显示(OSD)功能和各种功能的方法的设备。 该装置包括用于接收具有RAM写地址,ROM地址和屏幕显示功能的串行数据的屏幕显示装置。 该装置响应于内部或外部复合同步信号,合成具有背景颜色信号或外部复合视频信号的与串行数据对应的字符信号,并将结果提供给监视器。 该装置还包括同步信号发生装置,用于在接收主时钟信号时产生内部水平和垂直同步信号,合成装置用于将内部均衡脉冲与内部水平和垂直同步信号合成,以及用于确定内部复合同步信号的装置 或从复合视频信号中提取的外部复合同步信号。 控制装置也是OSD装置的一部分。 控制装置将用户串行数据输出到屏幕显示装置,从系统时钟产生主时钟信号,并控制屏幕显示装置和同步信号产生装置。