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    • 32. 发明授权
    • 기록 재생 장치
    • 记录和再现设备
    • KR1019900001450B1
    • 1990-03-10
    • KR1019840006016
    • 1984-09-28
    • 닛폰 비구타 가부시키가이샤
    • 니시모또나오미찌
    • G11B20/06
    • H04N9/896H04N9/81
    • A circuit receives composite colour video information with time- compressed colour-difference signals time-division multiplexed with a time-compressed luminance signal and interleaved with vertical and horizontal sync. pulses. Two address counters are driven at successively varying rates to access two read-write memories for sequentially writing the laminance signal into accessed memory locations at a higher rate and reading out at a lower rate. A coincidence gate detects a simultaneous presence of vertical and horizontal sync. pulses to initialize the two address counters to a predetermined count state.
    • 电路接收具有时间压缩色差信号的复合彩色视频信息,时间压缩色差信号与时间压缩的亮度信号进行时分复用,并与垂直和水平同步交错。 脉冲。 两个地址计数器以连续变化的速率驱动以访问两个读写存储器,以便以更高的速率顺序地将层叠信号写入访问的存储器位置并以较低的速率读出。 符合门检测到垂直和水平同步的同时存在。 脉冲将两个地址计数器初始化为预定的计数状态。
    • 33. 发明授权
    • 영상 신호의 흔들림 보정 장치 및 방법
    • 用于视频信号的抖动消除装置和方法
    • KR100331564B1
    • 2002-04-06
    • KR1019990057621
    • 1999-12-14
    • 삼성전자주식회사
    • 이제석
    • G11B20/02
    • H04N9/896H04N5/78263
    • 영상신호의흔들림보정장치및 방법이개시된다. 본발명에따른영상신호의흔들림보정장치는, 외부에서인가되는영상신호를복조하는디지탈디코더와, 영상신호에동기되는제1클럭신호를생성하는위상동기루프를구비하는영상신호재생시스템에서영상신호의흔들림을보정하기위한영상신호흔들림보정장치에있어서, 어드레스생성기, 비교기및 양방향기억장치를구비한다. 어드레스생성기는제1클럭신호에응답하여영상신호를기입하기위한기입어드레스를발생시키고, 고정된주파수를갖는제2클럭신호에응답하여영상신호를독출하기위한독출어드레스를발생시키며, 헤드스위칭신호와소정의제1, 제2비교신호에응답하여기입어드레스와독출어드레스를보정한다. 비교기는기입어드레스와독출어드레스를비교하고, 비교된결과에응답하여제1비교신호및 제2비교신호를생성한다. 양방향기억장치는제1클럭신호에응답하여기입어드레스에상응하는위치에영상신호를저장하고, 제2클럭신호에응답하여독출어드레스에상응하는위치에저장된영상신호를출력한다. 본발명에의하면, 디지탈방식으로아날로그의영상신호를처리하는과정에서발생될수 있는영상신호의흔들림(jitter)을, 작은용량의기억장치를이용하여보정함으로써안정된출력영상을얻을수 있다는효과가있다.
    • 34. 发明公开
    • 영상 신호의 흔들림 보정 장치 및 방법
    • 用于补偿图像信号抖动的装置和方法
    • KR1020000062199A
    • 2000-10-25
    • KR1019990057621
    • 1999-12-14
    • 삼성전자주식회사
    • 이제석
    • G11B20/02
    • H04N9/896H04N5/78263
    • PURPOSE: An apparatus and method for compensating a jitter of an image signal is provided to substantially reappear a color signal using a low-capacitance memory without lowering resolution of a luminance signal. CONSTITUTION: The apparatus for compensating a jitter of an image signal comprises a digital decoder(500) for demodulating an image signal applied from an outside, a phase locked loop(510) for generating a first clock signal synchronized with the image signal, an address generator for comparing a luminance writing address responding to the first clock signal with a luminance reading address responding to a second clock signal and compensating an address of a luminance signal, a first interactive memory device(564) for storing the luminance signal in the luminance writing address responding to the first clock signal and outputting the luminance signal stored in the luminance read address responding to the second clock signal, a color signal address generator comparing a color signal writing address and with a color signal reading address and compensating an address of the color signal, and a second interactive memory device(566) for storing the color signal in the color signal writing address responding to the second clock signal and outputting the color signal stored in the color signal read address responding to the second clock signal.
    • 目的:提供用于补偿图像信号的抖动的装置和方法,以使用低电容存储器基本上重现颜色信号,而不会降低亮度信号的分辨率。 构成:用于补偿图像信号的抖动的装置包括用于解调从外部施加的图像信号的数字解码器(500),用于产生与图像信号同步的第一时钟信号的锁相环(510),地址 发生器,用于将响应于第一时钟信号的亮度写入地址与响应于第二时钟信号的亮度读取地址进行比较并补偿亮度信号的地址;第一交互式存储器件(564),用于将亮度信号存储在亮度写入 响应于第一时钟信号的地址响应于第二时钟信号输出存储在亮度读取地址中的亮度信号,颜色信号地址发生器将颜色信号写入地址与颜色信号读取地址进行比较并补偿颜色的地址 信号和第二交互式存储设备(566),用于存储彩色信号写入a 响应于第二时钟信号,响应于第二时钟信号输出存储在彩色信号读取地址中的彩色信号。
    • 40. 发明授权
    • 영상신호의 시간축 보정 장치
    • 视频信号的时基校正装置
    • KR1019970001636B1
    • 1997-02-11
    • KR1019940001070
    • 1994-01-20
    • 주식회사 엘지이아이
    • 오순영
    • H04N5/95
    • H04N9/896
    • There is provided an apparatus for amending time axis of image signal capable of compensating for velocity error by forming phase synchronous loop at chrominance subcarrier, writing in FIFO memory, and modulating read clock using a difference of phase errors of chrominance subcarrier between two consecutive lines. For the amendment of time axis in the apparatus, analogue image signal including digital signal is transformed into digital image signal in accordance with sampling clock(WCK) by analog/digital converter(21). Afterwards, on the basis of drop out detecting signal detected in the outside, the converted digital image signal is amended by the drop out amending part(22). At this time, the drop out amending part(22) delays the digital image signal by 1H with amending the digital image signal, and stores the delayed image signal in FIFO memory 23 by the control of the FIFO controller(24) synchronously with write clock(WCK).
    • 提供了一种用于修正图像信号的时间轴的装置,其能够通过在色度副载波上形成相位同步环,在FIFO存储器中写入以及使用两条连续行之间的色度副载波的相位误差的差调制读时钟来补偿速度误差。 对于装置中的时间轴的修正,包括数字信号的模拟图像信号根据模拟/数字转换器(21)的采样时钟(WCK)被转换为数字图像信号。 之后,基于在外部检测到的丢失检测信号,通过退出修正部分(22)修改转换后的数字图像信号。 此时,退出修正部分(22)通过修改数字图像信号将数字图像信号延迟1H,并且通过FIFO控制器(24)的控制与写入时钟同步地将延迟的图像信号存储在FIFO存储器23中 (WCK)。