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    • 1. 发明授权
    • TV line and field detection apparatus with good noise immunity
    • 电视线和现场检测仪具有良好的抗噪声能力
    • US5619275A
    • 1997-04-08
    • US382023
    • 1995-02-09
    • Juri Tults
    • Juri Tults
    • H04N5/10H04N7/087
    • H04N5/10
    • An auxiliary video information decoder for decoding information such as closed caption data in a video signal identifies a desired horizontal line of video in a video signal. A reference pulse in a synchronizing signal is detected followed by the generation of first and second window pulse signals occurring at predetermined delays after detection of the reference pulse. A pulse occurring in the synchronizing signal during the window pulses indicates the start of the desired horizontal line interval. A field identification signal may also be generated. Features for improving noise and phase error immunity when identifying a video line are provided.
    • PCT No.PCT / US93 / 07142 371日期:1995年2月9日 102(e)1995年2月9日PCT PCT 1993年7月29日PCT公布。 出版物WO94 / 06243 日期1994年3月17日用于解码诸如视频信号中的隐藏字幕数据的信息的辅助视频信息解码器识别视频信号中期望的视频水平线。 检测同步信号中的参考脉冲,然后在检测到参考脉冲之后产生以预定延迟发生的第一和第二窗口脉冲信号。 在窗口脉冲期间在同步信号中出现的脉冲指示期望的水平线间隔的开始。 也可以产生场识别信号。 提供了识别视频线时提高噪声和相位误差的特性。
    • 2. 发明授权
    • Auxiliary video data detector and data slicer
    • 辅助视频数据检测器和数据限幅器
    • US5463423A
    • 1995-10-31
    • US850200
    • 1992-03-11
    • Juri Tults
    • Juri Tults
    • H04N7/035H04N7/08
    • H04N7/0355H04N7/035
    • A data slicer for extracting auxiliary video data from a video signal adapts a data slicing level to the amplitude of the data signal as indicated by the average value of a run-in clock (RIC) signal that is included in the video signal. Control of the slicing level occurs during a window interval that spans a portion of the RIC signal. A comparator compares the video signal to a slicing level established at the output of a digital to analog converter. A digital system monitors the output of the comparator during the RIC window to determine both the existence of auxiliary video data and the accuracy of the slicing level. The slicing level is adjusted in response to the comparator output to establish a slicing level related to the RIC signal amplitude.
    • 用于从视频信号提取辅助视频数据的数据限幅器将数据切片电平适配为数据信号的幅度,如视频信号中包含的输入时钟(RIC)信号的平均值所示。 在跨越RIC信号的一部分的窗口间隔期间发生切片电平的控制。 比较器将视频信号与在数模转换器的输出端建立的限幅电平进行比较。 数字系统在RIC窗口期间监视比较器的输出,以确定辅助视频数据的存在和切片电平的精度。 响应于比较器输出调节切片电平以建立与RIC信号幅度相关的限幅电平。
    • 4. 发明授权
    • Shared counter arrangement for a digital frequency locked loop tuning
system for selectively measuring the frequencies of the LO and IF
signals
    • 用于选择性地测量LO和IF信号的频率的数字频率锁定环调谐系统的共享计数器装置
    • US4484221A
    • 1984-11-20
    • US413762
    • 1982-09-01
    • Juri Tults
    • Juri Tults
    • H03J7/06H04N5/50H04N5/44H04B1/16
    • H03J7/065H04N5/50
    • In a tuning system of a television receiver, the local oscillator (LO) signal and IF picture carrier are selectively coupled to the clock input of the same down counter. The down counter is selectively enabled to count cycles of the LO signal on IF picture carrier during respective LO and IF measurement intervals. A predetermined initial count related to a desired frequency of the LO signal or a predetermined initial count related to a desired frequency of the IF picture carrier are loaded into the down counter during LO and IF presetting intervals which occur just prior to corresponding LO and IF measurement intervals. The counts of the counter at the ends of each of the LO and IF measurement intervals are compared to zero to generate LO and IF error signals representing the frequency deviations, if any, of the LO signal and the IF picture carrier from the respective desired frequencies. The LO and If error signals are utilized to control a tuning voltage for the receiver's tuner.
    • 在电视接收机的调谐系统中,本地振荡器(LO)信号和IF图像载体选择性地耦合到同一向下计数器的时钟输入。 选择性地使能递减计数器来在相应的LO和IF测量间隔期间对IF图像载体上的LO信号的周期进行计数。 与在相应的LO和IF测量之前出现的LO和IF预设间隔期间,将与LO信号的期望频率或与IF图像载波的期望频率相关的预定初始计数相关的预定初始计数加载到递减计数器中 间隔 每个LO和IF测量间隔的末端的计数器的计数被比较为零以产生表示来自各个期望频率的LO信号和IF图像载波的频率偏差(如果有的话)的LO和IF误差信号 。 LO和If误差信号用于控制接收机调谐器的调谐电压。
    • 5. 发明授权
    • Arrangement for both channel swapping and favorite channel features
    • 频道交换和喜爱频道功能的排列
    • US4367559A
    • 1983-01-04
    • US232213
    • 1981-02-06
    • Juri Tults
    • Juri Tults
    • H03J5/02H03J7/18H04B1/16
    • H03J7/18H03J5/0263
    • The channel selection apparatus of a tuning system includes a present channel number register, a temporary register, a saved channel number register and a control unit for selectively controlling the three registers to (a) interchange the contents of the present and saved channel number registers when a swap key is activated, (b) enter the contents of the present channel number register in the saved channel number register without disturbing the contents of the present channel register when a favorite channel store key is activated, and (c) enter the contents of the saved channel number register in the present channel number register without disturbing the contents of the saved channel number register when a favorite channel recall key is activated.
    • 调谐系统的频道选择装置包括当前频道号码寄存器,临时寄存器,保存的频道号码寄存器和用于选择性地控制三个寄存器的控制单元,以便(a)当前和保存的频道号码寄存器的内容交换时 激活交换键,(b)当激活喜爱的频道存储键时,在保存的频道号码寄存器中输入当前频道号码寄存器的内容,而不会干扰当前频道存储键的内容,(c)输入内容 保存的频道号码寄存器在当前频道号码寄存器中,而不影响保存的频道号码寄存器的内容,当喜欢的频道回放键被激活时。
    • 7. 发明授权
    • Graphical on-screen display system
    • 图形屏幕显示系统
    • US06339451B1
    • 2002-01-15
    • US09254961
    • 1999-03-22
    • Juri Tults
    • Juri Tults
    • H04N550
    • H04N5/44504G09G5/06
    • A graphical on-screen display (OSD) system, includes a decoder for decoding graphical OSD image representative data from an auxiliary information component of a video signal. An edge detector is coupled to the decoder and processes the OSD image representative data to detect an edge in the graphical OSD image. An edge smoother is coupled to both the decoder and the edge detector and generates signals representing a reproduced OSD image having a smoothed edge when an edge is detected.
    • 图形屏幕显示(OSD)系统包括用于从视频信号的辅助信息分量解码图形OSD图像代表数据的解码器。 边缘检测器耦合到解码器并处理OSD图像代表数据以检测图形OSD图像中的边缘。 边缘平滑器耦合到解码器和边缘检测器,并且当检测到边缘时,生成表示具有平滑边缘的再现OSD图像的信号。
    • 8. 发明授权
    • Bias control apparatus for a data slicer in an auxiliary video
information decoder
    • 用于辅助视频信息解码器中数据限幅器的偏置控制装置
    • US5666167A
    • 1997-09-09
    • US738118
    • 1996-10-25
    • Juri Tults
    • Juri Tults
    • H04N5/18H04N7/035H04N7/087
    • H04N7/0355H04N5/18
    • An auxiliary video information decoder for extracting an auxiliary video information signal from a video signal includes a data slicer and apparatus for adjusting the slicing level of the data slicer. The slicing level is adjusted rapidly until a reference component of the auxiliary information signal is detected during a display interval of the video signal in which auxiliary video information is expected to occur. A count is incremented after display intervals in which the reference component is detected and is decremented after display intervals in which the reference component is not detected. Slicing level adjustment ceases while the count is at least a predetermined number. The apparatus rapidly adapts the slicing level to long-term video signal amplitude changes of significant magnitude (e.g. following a channel change) and maintains a constant slicing level when transient variations occur in the video signal amplitude.
    • 用于从视频信号中提取辅助视频信息信号的辅助视频信息解码器包括数据限幅器和用于调整数据限幅器的限幅电平的装置。 在期望辅助视频信息的视频信号的显示间隔期间,快速调整切片电平直到辅助信息信号的参考分量被检测到。 在检测到参考分量的显示间隔之后增加计数,并且在未检测到参考分量的显示间隔之后递减计数。 当计数至少为预定数量时,切片电平调整停止。 该装置将切片电平快速地适应于具有显着幅度的长期视频信号幅度变化(例如,在信道变化之后),并且当在视频信号幅度中出现瞬变变化时,维持恒定的限幅电平。
    • 10. 发明授权
    • Keyboard encoding arrangement
    • 键盘编码安排
    • US4282516A
    • 1981-08-04
    • US48311
    • 1979-06-13
    • Juri Tults
    • Juri Tults
    • H03J1/22H03J5/02H03M11/20H04B1/16G06F3/02
    • H03J5/0254H03J1/22H03M11/20
    • In a television receiver, a keyboard encoding arrangement which makes use of an existing register for storing binary signals representing control information and existing connections coupled to respective stages of the register includes transmission gates for selectively coupling the connections to respective switches of a keyboard. The switches of the keyboard are also coupled to sense circuits for detecting the presence or absence of binary signals. A counter selectively counts in response to sense signals generated by the sense circuits and generates count-representative signals which control the selective coupling and decoupling of binary signals stored in the register to the sense circuits through operated switches of the keyboard. A decoder is responsive to the count signals to generate control signals related to operated switches.
    • 在电视接收机中,使用现有寄存器来存储表示控制信息的二进制信号和耦合到寄存器的各个级的现有连接的键盘编码装置包括用于选择性地将连接耦合到键盘的各个开关的传输门。 键盘的开关也耦合到用于检测二进制信号的存在或不存在的感测电路。 计数器响应于由感测电路产生的感测信号而选择性地计数,并产生计数代表信号,其通过键盘的操作开关控制存储在寄存器中的二进制信号的选择性耦合和去耦合到感测电路。 解码器响应于计数信号以产生与被操作的开关相关的控制信号。