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    • 2. 发明授权
    • Display control apparatus using display synchronizing signal
    • 显示控制装置使用显示同步信号
    • US5912713A
    • 1999-06-15
    • US364779
    • 1994-12-27
    • Takashi TsunodaHideo KannoKatsuhiro MiyamotoYuichi MatsumotoHideaki Yui
    • Takashi TsunodaHideo KannoKatsuhiro MiyamotoYuichi MatsumotoHideaki Yui
    • G06F1/08G09G3/20G09G5/00G09G5/18H03L7/183H04N5/04G03B13/00
    • G09G5/008
    • A horizontal synchronizing signal is applied as a reference signal and a voltage-controlled oscillator outputs a display clock signal on the basis of the frequency of the horizontal synchronizing signal. The frequency of the display clock signal is frequency-divided in accordance with a frequency-dividing value selected from among a plurality of frequency-dividing signals stored in advance, the difference in frequency between the frequency-divided display clock signal and the horizontal synchronizing signal and the phase difference between them are obtained by a phase comparator, and the frequency of the signal outputted by the voltage-controlled oscillator is decided in dependence upon the frequency difference. In an interval in which a vertical synchronizing signal turns off and the frequency of the horizontal synchronizing signal fluctuates, the reference signal and the horizontal synchronizing signal input to the phase comparator are held fixed to prevent a fluctuation in the outputted display clock.
    • 施加水平同步信号作为参考信号,压控振荡器根据水平同步信号的频率输出显示时钟信号。 显示时钟信号的频率根据从预先存储的多个分频信号中选择的分频值进行分频,分频后的显示时钟信号与水平同步信号之间的频率差 并且通过相位比较器获得它们之间的相位差,并且根据频率差来决定由压控振荡器输出的信号的频率。 在垂直同步信号关闭并且水平同步信号的频率波动的间隔中,输入到相位比较器的参考信号和水平同步信号保持固定,以防止输出的显示时钟的波动。
    • 5. 发明授权
    • System for displaying multiple images and display method therefor
    • 用于显示多个图像的系统及其显示方法
    • US06473088B1
    • 2002-10-29
    • US09332106
    • 1999-06-14
    • Yuichi MatsumotoKatsuhiro MiyamotoShuntaro ArataniHideaki Yui
    • Yuichi MatsumotoKatsuhiro MiyamotoShuntaro ArataniHideaki Yui
    • G09G539
    • G09G5/363G06F3/14G09G5/14G09G5/393G09G2320/103G09G2330/021G09G2340/0407G09G2340/0435G09G2340/125H04N5/44591H04N21/42221H04N21/4316H04N21/4331H04N21/4363H04N21/44008H04N21/44227H04N21/4438H04N21/4622
    • A multiple images display system includes a plurality of image data input portions, for receiving image data from a plurality of image sources, a display device for simultaneously displaying all of the received image data, an external action input portion, a frame memory for storing the image data received by the image data input portions, a transfer portion, and a detector, for detecting the sum of the input data transmission rates for the image data that are received by the image data input portions. In addition, a comparator compares the sum obtained for the input data transmission rates with a data transmission rate for the frame memory, a priority allocation portion determines and allocates display priorities for the image data sets to be displayed on the display device in accordance with the external action, and a control portion controls the display, on the display device, of the received image data sets in accordance with the display priorities and the result obtained by the comparison of the data transmission rate for the frame memory with the sum detected for the input data transmission rates.
    • 多图像显示系统包括多个图像数据输入部分,用于从多个图像源接收图像数据,用于同时显示所有接收的图像数据的显示装置,外部动作输入部分,用于存储图像数据的帧存储器 由图像数据输入部分接收的图像数据,传送部分和检测器,用于检测由图像数据输入部分接收的图像数据的输入数据传输速率之和。 此外,比较器将输入数据传输速率获得的和与帧存储器的数据传输速率进行比较,优先级分配部分根据所述显示设备确定并分配要在显示设备上显示的图像数据集的显示优先级 外部动作和控制部分根据显示优先级和通过比较帧存储器的数据传输速率获得的结果与在显示装置上检测到的总和对显示装置上的显示进行控制 输入数据传输速率。