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1.发明授权
公开(公告)号：US4672443A
公开(公告)日：1987-06-09
申请号：US771420
申请日：1985-08-30
CPC分类号： H04N7/0122 , H04N11/006
摘要： A wide aspect ratio television system includes memories for storing and recovering a video input signal in response to read and write clock pulses, respectively. Write clock pulses are deleted to compress edge regions of a wide aspect ratio input signal and read clock pulses are deleted to restore the signal to its original aspect ratio. The pattern of delected pulses is altered on a line-by-line basis to reduce visible artifacts of signal decimation. Dual mode receivers include provisions for controlling edge blanking, interpolation and the pattern of clock pulses deleted as a function of received signals. Wide and standard aspect ratio images are displayed without altering the width of the display raster.
摘要翻译： 大宽高比电视系统包括分别响应于读和写时钟脉冲存储和恢复视频输入信号的存储器。 写入时钟脉冲被删除以压缩宽宽比输入信号的边缘区域，并且删除读取时钟脉冲以将信号恢复到其原始宽高比。 逐行扫描的脉冲的图案被改变以减少信号抽取的可见伪像。 双模式接收器包括用于控制边沿消隐，内插和作为接收信号的函数被删除的时钟脉冲的模式的规定。 在不改变显示栅格宽度的情况下显示宽和标准宽高比图像。
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公开(公告)号：US4550337A
公开(公告)日：1985-10-29
申请号：US482821
申请日：1983-04-07
摘要： A video signal is serially enclosed for transmission in PCM form during synchronizing level intervals and encoded in a run length limited NRZ form during non-synchronizing level intervals, each PCM word being selected from minimum and maximum disallowed states of the NRZ code. In a decoder, a first detector responds only to the presence of the PCM code for synchronizing a second detector with response to both the NRZ and PCM coded portions of the encoded video signal to provide a decoded video output signal whereby the PCM portion of the signal conveys both decoder timing information and information as to a specific level of the video signal.
摘要翻译： 视频信号被串行封闭，以在同步电平间隔期间以PCM形式传输，并且在非同步电平间隔期间以游程长度限制NRZ形式编码，每个PCM字从NRZ码的最小和最大不允许状态中选择。 在解码器中，第一检测器仅响应PCM代码的存在，以使第二检测器与编码视频信号的NRZ和PCM编码部分的响应同步，以提供解码的视频输出信号，由此信号的PCM部分 传送解码器定时信息和关于视频信号的特定级别的信息。
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公开(公告)号：US4636841A
公开(公告)日：1987-01-13
申请号：US736968
申请日：1985-05-22
CPC分类号： H04N9/78
摘要： A field comb filter for separating luminance signal from NTSC composite video additively combines signals separated by 263 horizontal lines. Vertical detail is restored and motion compensation provided by subtractively combining signal separated by 262 horizontal lines and adding the difference to the separated luminance signal.
摘要翻译： 用于从NTSC复合视频中分离亮度信号的场梳状滤波器将由263条水平线分开的信号相加组合。 通过对由262条水平线分隔的信号进行减法组合，并将差值与分离的亮度信号相加，从而恢复垂直细节和运动补偿。
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公开(公告)号：US4290671A
公开(公告)日：1981-09-22
申请号：US122722
申请日：1980-02-19
CPC分类号： H04N9/045
摘要： A filter for use with a CCD imager has vertical color stripes that have a non-integral relationship to the CCD sensors. A means for controlling the amount of a particular color that falls on a particular photosensor suppresses undesired signals.
摘要翻译： 与CCD成像器一起使用的滤光片具有与CCD传感器非积分关系的垂直色条。 用于控制落在特定光传感器上的特定颜色的量的装置抑制不期望的信号。
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公开(公告)号：US4238713A
公开(公告)日：1980-12-09
申请号：US51301
申请日：1979-06-22
申请人： Warren H. Moles
发明人： Warren H. Moles
CPC分类号： H03K4/693
摘要： A push-pull pair of output transistors provides trace current to a vertical deflection winding. A retrace capacitor forms a resonant retrace circuit with the deflection winding to develop a resonant retrace current in the deflection winding. A damping circuit coupled to the deflection winding damps unwanted oscillations of the trace current. A diode disconnect functions to prevent the resonant retrace current from flowing in both the output stage and in the damping circuit, thereby reducing undesirable dissipation in the vertical deflection circuit.
摘要翻译： 输出晶体管的一对推挽对垂直偏转绕组提供迹线电流。 回扫电容器形成具有偏转绕组的谐振回扫电路，以在偏转绕组中产生谐振回扫电流。 耦合到偏转绕组的阻尼电路阻止迹线电流的不期望的振荡。 二极管断开功能用于防止谐振回扫电流在输出级和阻尼电路中流动，从而减少垂直偏转电路中的不期望的损耗。
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