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21. 发明授权

US5303398A Stability detection method and apparatus for a tuning system 失效
标题翻译：用于调谐系统的稳定性检测方法和装置
公开(公告)号：US5303398A
公开(公告)日：1994-04-12
申请号：US488645
申请日：1990-03-09
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H03J7/02 , H03J1/00 , H03J7/06 , H04B1/26 , H04B1/16
CPC分类号： H03J7/065 , H03J1/0008
摘要： An indication of stability of a tuning system after changing, the local oscillator frequency to a predetermined frequency, such as a frequency corresponding to a new channel during a channel changing operation or to a new search frequency during a search, is provided by monitoring an AFT signal during the frequency changing operation and determining when it remains consistent for a predetermined time.
摘要翻译：通过监视AFT来提供改变之后的调谐系统的稳定性的指示，本地振荡器频率到预定频率，例如在信道改变操作期间对应于新信道的频率或在搜索期间到新的搜索频率在频率改变操作期间确定信号，并且确定其在预定时间内保持一致。

22. 发明授权

US5163164A Microprocessor controlled digital AFT unit 失效
标题翻译：微处理器控制的数字单位
公开(公告)号：US5163164A
公开(公告)日：1992-11-10
申请号：US635829
申请日：1990-12-31
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： G01R23/10 , H03J1/00 , H03J7/06 , H04N17/04
CPC分类号： H03J1/005 , H03J7/065
摘要： A tuning system of a television receiver includes a digital automatic fine tuning (AFT) unit for generating a digital AFT signal representing the deviation of the frequency of the picture carrier of the IF signal from a nominal frequency value. The digital AFT unit includes a counter for counting cycles of picture carrier during counting intervals. A portion of the IF section, the counter and at least of a portion of the signal processing section of the television receiver are included within a single integrated circuit. A microprocessor is coupled to the integrated circuit through a serial data bus. Under software program control, the microprocessor (1) transmits function control and counting control information to the signal processing section through the serial data bus, (2) receives count information from the counter through the serial data bus, and (3) evaluates count information to determine the deviation of the frequency of the IF picture carrier from its nominal frequency value.

23. 发明授权

US5157492A Sync validity detecting utilizing a microcomputer 失效
标题翻译：使用微型计算机进行同步有效性检测
公开(公告)号：US5157492A
公开(公告)日：1992-10-20
申请号：US865813
申请日：1992-03-31
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H03J7/06 , H04N5/04
CPC分类号： H04N5/04 , H03J7/065
摘要： A tuning system includes a microcomputer-based synchronization signal detector which does not require the use of a hardware timer/counter. The microcomputer samples the output signal of a sync separator coupled to an ordinary input/output port during a number of different evaluation intervals to determine if respective characteristics of a valid sync signal occur. During one evaluation interval, a test is performed to determine if a "high" level is present for a time duration less than a given time duration (e.g. 10 .mu.S) corresponding to the maximum duration of horizontal sync pulses. During another evaluation interval, a test is performed to determine if a "low" level is present for a time duration greater than another given time duration (e.g., 40 .mu.S) corresponding to the minimum separation between horizontal sync pulses. The sampling intervals and evaluation intervals are established by the time required to execute instruction cycles.
摘要翻译：调谐系统包括不需要使用硬件计时器/计数器的基于微机的同步信号检测器。在多个不同的评估间隔期间，微计算机采集耦合到普通输入/输出端口的同步分离器的输出信号，以确定是否发生有效同步信号的相应特性。在一个评估间隔期间，执行测试以确定是否存在小于对应于水平同步脉冲的最大持续时间的给定持续时间（例如10μS）的持续时间内的“高”电平。在另一个评估间隔期间，执行测试以确定是否存在大于对应于水平同步脉冲之间的最小间隔的另一给定持续时间（例如，40μS）的持续时间内的“低”电平。采样间隔和评估间隔由执行指令周期所需的时间建立。

24. 发明授权

US4763195A Television tuning system with provisions for quickly locating active cable channels 失效
标题翻译：电视调谐系统，用于快速定位有源电缆通道
公开(公告)号：US4763195A
公开(公告)日：1988-08-09
申请号：US47849
申请日：1987-05-08
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H03J7/18 , H03J1/00 , H03J5/02 , H03J7/26 , H04N5/50
CPC分类号： H03J1/0041 , H03J7/26 , H04N5/50
摘要： A tuning system for tuning non-standard frequency RF television signals provided by cable distribution networks and television accessories conducts first and second consecutive searches by changing the local oscillator frequency. The first search is limited to search frequencies corresponding to predictable non-standard frequencies associated with the major cable distribution networks. The second search includes more search frequencies and extends over a wider frequency range than the first. During an auto-programming mode, in which active channels are identified, for memorization in a channel list portion of a memory, only the first search is conducted to minimize the required time.
摘要翻译：用于调谐由电缆分配网络和电视配件提供的非标准频率RF电视信号的调谐系统通过改变本地振荡器频率进行第一和第二连续搜索。第一搜索限于与主要电缆分配网络相关联的可预测非标准频率对应的搜索频率。第二搜索包括更多的搜索频率，并且在比第一搜索频率更宽的频率范围内延伸。在识别有效信道的自动编程模式期间，为了存储在存储器的频道列表部分中，仅进行第一次搜索以最小化所需的时间。

25. 发明授权

US4641190A Muting system 失效
标题翻译：静音系统
公开(公告)号：US4641190A
公开(公告)日：1987-02-03
申请号：US733215
申请日：1985-05-10
申请人： William J. Testin , Juri Tults
发明人： William J. Testin , Juri Tults
IPC分类号： H04N5/50 , H04N5/60
CPC分类号： H04N5/505
摘要： A blanking signal is generated in a television receiver when a channel change selection is made. The blanking signal is low-pass filtered and thereafter controls the muting of the audio channel. Muting and un-muting are thus accomplished gradually, without audio disturbance. The tuning voltage is allowed to change to the new value required only after a delay period following the start of the blanking signal. Muting is therefore substantially complete before tuning transients can occur.
摘要翻译：当进行频道改变选择时，在电视接收机中产生消隐信号。消隐信号被低通滤波，此后控制音频通道的静音。因此，静音和解除静音逐渐完成，没有音频干扰。只有在消隐信号开始后的延迟时间后，才允许调谐电压变为新的值。因此，在调谐瞬变可能发生之前，静音基本完成。

26. 发明授权

US4426734A Arrangement useful in a phase locked loop tuning control system for selectively applying an aft voltage in a manner to improve loop stability 失效
标题翻译：在锁相环调谐控制系统中有用的布置，用于以提高环路稳定性的方式选择性地施加尾部电压
公开(公告)号：US4426734A
公开(公告)日：1984-01-17
申请号：US352885
申请日：1982-02-26
申请人： Juri Tults , Charles M. Wine
发明人： Juri Tults , Charles M. Wine
IPC分类号： H03J7/06 , H04B1/26
CPC分类号： H03J7/065
摘要： In a phase locked loop tuning system including a phase comparator for producing a pulse type error signal representing the phase and frequency deviation between a frequency divided version of the local oscillator signal and a reference frequency signal and a mode switch for coupling the error signal to an integrator for developing a tuning voltage when a channel is initially selected and thereafter for coupling an AFT voltage to the integrator to modity the tuning voltage to correct for a frequency deviation of the IF signal, switching duty cycle control apparatus is provided for controlling the duty cycle at which the AFT voltage is coupled to the integrator in accordance with the selected channel and more particularly with its band to make the AFT response more consistent throughout the tuning range.
摘要翻译：在一个锁相环调谐系统中，包括相位比较器，用于产生表示本地振荡器信号的分频版本与参考频率信号之间的相位和频率偏差的脉冲型误差信号，以及用于将误差信号耦合到积分器，用于在最初选择通道时开发调谐电压，然后将AFT电压耦合到积分器以调节调谐电压以校正IF信号的频率偏差，提供开关占空比控制装置来控制占空比其中AFT电压根据所选择的信道耦合到积分器，更具体地与其频带耦合，以使得AFT响应在整个调谐范围内更一致。

27. 发明授权

US4084127A Digital frequency deviation detector useful in a television tuning system 失效
标题翻译：用于电视调谐系统的数字频偏检测器
公开(公告)号：US4084127A
公开(公告)日：1978-04-11
申请号：US709924
申请日：1976-07-29
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H03J5/02 , H03J7/06 , H03D13/00
CPC分类号： H03J5/0272 , H03J7/065
摘要： In a phase locked loop type of tuning system for a television receiver having provisions for tuning the receiver to non-standard frequency carriers having frequencies arbitrarily near respective frequencies of the standard broadcast carriers, a digital frequency deviation detector is provided to determine whether the frequency of at least one variable frequency signal developed by the tuning system is within a predetermined range of its nominal value. The frequency deviation detector includes a D type flip-flop to generate a signal whose frequency is equal to the difference between the frequency of the variable frequency signal and a fixed frequency signal. A counter is enabled during a predetermined portion of at least one cycle of the difference signal to count period (cycles) of the fixed frequency signal. The accumulation of at least a predetermined count indicates that the variable frequency signal is within a predetermined frequency difference with respect to the frequency of the fixed frequency signal. The frequency of the fixed frequency signal is substantially proportional to the nominal frequency of the variable frequency signal. Because the frequency deviation detector does not require components (e.g., capacitors) conventionally employed with analog type of frequency deviation detectors, it may be readily incorporated in a digital integrated circuit with, for example, other portions of a digital tuning system.
摘要翻译：在具有用于将接收机调谐到具有任意接近标准广播载波的相应频率的频率的非标准频率载波的电视接收机的锁相环类型的调谐系统中，提供数字频偏检测器，以确定频率由调谐系统开发的至少一个可变频率信号在其标称值的预定范围内。频率偏差检测器包括D型触发器，用于产生频率等于可变频率信号的频率与固定频率信号之间的差的信号。在差分信号的至少一个周期的预定部分期间使能计数器，以对固定频率信号的周期（周期）进行计数。至少预定计数的累积表示可变频率信号相对于固定频率信号的频率在预定的频率差内。固定频率信号的频率基本上与可变频率信号的标称频率成比例。由于频率偏差检测器不需要常规用于模拟类型的频率偏差检测器的部件（例如，电容器），所以可以容易地与例如数字调谐系统的其它部分结合在数字集成电路中。

28. 发明授权

US5900913A System providing standby operation of an auxiliary data decoder in a television receiver 失效
标题翻译：在电视接收机中提供辅助数据解码器的待机操作的系统
公开(公告)号：US5900913A
公开(公告)日：1999-05-04
申请号：US533951
申请日：1995-09-26
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H04N5/04 , H04N5/445 , H04N5/455 , H04N5/63 , H04N7/025 , H04N7/03 , H04N7/035 , H04N7/088 , H04N21/488 , H04N7/00
CPC分类号： H04N21/4884 , H04N5/44513 , H04N7/035 , H04N7/0882 , H04N7/0885 , H04N5/63
摘要： A decoder for decoding data from a data signal component of a television signal, such as closed caption data, decodes the data signal in response to a deflection signal during a normal mode of operation of a television receiver and in response to separated sync signal during a standby mode of operation of the television receiver.
摘要翻译：用于从诸如隐藏字幕数据的电视信号的数据信号分量中解码数据的解码器在电视接收机的正常操作模式期间响应于偏转信号而对数据信号进行解码，并响应于在电视接收机的待机模式。

29. 发明授权

US5453795A Horizontal line counter insensitive to large phase shifts of video 失效
标题翻译：水平线计数器对视频的大相移不敏感
公开(公告)号：US5453795A
公开(公告)日：1995-09-26
申请号：US142421
申请日：1993-11-22
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H04N5/10 , H04N5/92 , H04N7/035 , H04N7/088 , H04N7/087
CPC分类号： H04N5/10 , H04N5/9207 , H04N7/0352 , H04N7/0882
摘要： A horizontal line counter (110,115,120) provides a signal (LINE #21) identifying the beginning of video data in a particular horizontal video line. The counter is clocked by multiple clock signals. A first clock signal (HOR PLS) clocks the counter until the line count value equals a known value that is less than the line number of the horizontal line that is to be identified. When the count value equals the known value, clocking by a second clock signal (COMP SYNC) is enabled. Although, the first clock source provides a regular pulse waveform suitable for clocking the counter reliably, transitions on the first clock signal may not accurately indicate the beginning of information within a horizontal line interval. Transitions on the second clock signal accurately indicate the beginning of the desired information. However, the waveform of the second clock signal may exhibit irregularities prior to the time at which clocking by the second clock signal is enabled that could adversely affect the reliability of the counter value. The combined clocking arrangement advantageously provides significantly higher reliability of the count value and improves the timing of the line identification signal with respect to the beginning of the desired video data.
摘要翻译： PCT No.PCT / US92 / 04825 Sec。 371日期：1993年11月22日 102（e）1993年11月22日PCT PCT。1996年6月15日提交。水平行计数器（110,115,120）提供识别特定水平视频行中的视频数据的开始的信号（LINE＃21）。计数器由多个时钟信号计时。第一个时钟信号（HOR PLS）对计数器进行计时，直到行计数值等于小于要识别的水平行的行号的已知值。当计数值等于已知值时，使能第二个时钟信号（COMP SYNC）的时钟。虽然，第一时钟源提供适合于可靠地对计数器计时的规则脉冲波形，但是第一时钟信号上的转换可能不会精确地指示在水平行间隔内的信息的开始。第二个时钟信号上的转换准确地指示了所需信息的开始。然而，第二时钟信号的波形可能在由第二时钟信号进行时钟启动的时间之前可能表现出不规则性，这可能不利地影响计数器值的可靠性。组合的时钟配置有利地提供了显着更高的计数值的可靠性并且相对于期望的视频数据的开始改善了线路识别信号的定时。

30. 发明授权

US5374960A Auxiliary video information code correction in sync-suppression type scrambled video signals 失效
标题翻译：同步抑制型加扰视频信号中的辅助视频信息码校正
公开(公告)号：US5374960A
公开(公告)日：1994-12-20
申请号：US48159
申请日：1993-04-15
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H04N7/025 , H04N7/03 , H04N7/035 , H04N7/171 , H04N7/087
CPC分类号： H04N7/0357 , H04N7/1713
摘要： A system for processing auxiliary video information, such as closed caption information, includes capability for detecting invalid parity errors that may be created by video signal distortion effects caused by sync suppression video signal scrambling. The sync suppression distortion does not affect the video display but may modify the parity bit of the second of two closed caption characters in each occurrence of line 21 of field 1 causing invalid parity errors. Parity errors in the first character, which is unaffected by the sync suppression distortion, indicate whether valid parity errors exist in the second character. If no parity errors occur in the first character, parity errors that occur in the second character are considered to be invalid.
摘要翻译：用于处理诸如隐藏字幕信息的辅助视频信息的系统包括检测由同步抑制视频信号加扰引起的视频信号失真效应可能产生的无效奇偶校验错误的能力。同步抑制失真不影响视频显示，但是可以修改字段1的每行21行中的第二个隐藏字幕字符中的第二个的奇偶校验位，导致无效奇偶校验错误。不受同步抑制失真影响的第一个字符的奇偶校验错误表示第二个字符中是否存在有效的奇偶校验错误。如果在第一个字符中没有发生奇偶校验错误，则第二个字符中出现的奇偶校验错误被认为是无效的。

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