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公开(公告)号:US06720943B1
公开(公告)日:2004-04-13
申请号:US09395639
申请日:1999-09-14
申请人: Seong Jin Kim , Yu Soong Kim , Hyun Chang Lee
发明人: Seong Jin Kim , Yu Soong Kim , Hyun Chang Lee
IPC分类号: G09G336
CPC分类号: G09G5/006 , G09G5/18 , H04B15/04 , H04B2215/064 , H04B2215/067
摘要: A data interface device is constructed to minimize electromagnetic interference in a liquid crystal display device. The data interface device has a data input arranged to input data which is synchronized with a desired frequency of a data clock. A clock modulator modulates the data clock to provide a modulated clock signal having a frequency within a certain range of frequency so as to minimize EMI when data is transmitted using the data clock. A variable data transmission speed controller responds to the data clock and the modulated clock in such a manner that a transmission speed of the data is varied in a manner to minimize EMI.
摘要翻译: 构造数据接口装置以最小化液晶显示装置中的电磁干扰。 数据接口装置具有数据输入端,其被布置为输入与数据时钟的期望频率同步的数据。 时钟调制器调制数据时钟以提供具有在一定频率范围内的频率的调制时钟信号,以便在使用数据时钟发送数据时使EMI最小化。 可变数据传输速度控制器以使数据的传输速度以最小化EMI的方式变化的方式响应数据时钟和调制时钟。
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公开(公告)号:US06614424B1
公开(公告)日:2003-09-02
申请号:US09572856
申请日:2000-05-18
申请人: Seong J. Kim , Yu Soong Kim , Hyun Chang Lee
发明人: Seong J. Kim , Yu Soong Kim , Hyun Chang Lee
IPC分类号: G09G500
CPC分类号: G09G3/3611 , G09G5/18
摘要: A data transmitting apparatus and method minimizes the electromagnetic interference (EMI) when transmitting parallel data via transmission lines. A controller receives data inputs synchronized to an input clock signal. The controller frequency-divides the input clock signal by a desired number, and separates the data into a plurality of separated data in such a manner to that one group of separated data has a phase difference relative to another group of separated data and is synchronized to the frequency-divided clock signal. Drive circuits receive the separated groups of data and sample the data at a falling edge or a rising edge of the frequency-divided clock signal such that sampling of one group occurs at different times than sampling of another group.
摘要翻译: 数据发送装置和方法通过传输线路传输并行数据时的电磁干扰(EMI)最小化。 控制器接收与输入时钟信号同步的数据输入。 控制器将输入时钟信号分频到期望的数量,并将数据分离成多个分离的数据,使得一组分离的数据相对于另一组分离的数据具有相位差,并被同步到 分频时钟信号。 驱动电路接收分离的数据组,并在分频时钟信号的下降沿或上升沿采样数据,使得一组的采样发生在与其他组的采样不同的时间。
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