专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4868892A Tuning system with provisions for calculating the local oscillator frequency from an aft characteristic 失效
标题翻译：调谐系统，具有从后方特征计算本地振荡器频率的规定
公开(公告)号：US4868892A
公开(公告)日：1989-09-19
申请号：US191646
申请日：1988-05-09
申请人： Juri Tults , William J. Testin , Mark F. Rumreich
发明人： Juri Tults , William J. Testin , Mark F. Rumreich
IPC分类号： H03J1/00 , H04N7/171
CPC分类号： H03J1/0041 , H04N7/1713
摘要： A television tuning system includes control apparatus for changing the frequency of a local oscillator signal during a search and a comparator arrangement for determining when an AFT signal traverses first and second threshold values corresponding to first and second frequencies in respective "hump" regions of the AFT signal. The frequency of the local oscillator is set to the average of the first and second frequencies in order to set the frequency of the IF picture carrier closer to the nominal value than the first and second frequencies.
摘要翻译：电视调谐系统包括用于在搜索期间改变本地振荡器信号的频率的控制装置和用于确定AFT信号何时穿过对应于AFT的各个“驼峰”区域中的第一和第二频率的第一和第二阈值的比较器装置信号。将本地振荡器的频率设置为第一和第二频率的平均值，以便将IF图像载波的频率设置为比第一和第二频率更接近标称值。

2. 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。

3. 发明授权

US4689685A Television tuning system with AFT provisions 失效
标题翻译：电视调谐系统与AFT规定
公开(公告)号：US4689685A
公开(公告)日：1987-08-25
申请号：US824602
申请日：1986-01-31
申请人： William J. Testin , Juri Tults
发明人： William J. Testin , Juri Tults
IPC分类号： H04N5/50
CPC分类号： H04N5/50
摘要： In a tuning control system for a television receiver, an analog AFT signal is sampled during blanking intervals when the amplitude of the video carrier is relative constant and therefore cannot affect the amplitude of the AFT signal significantly. This reduces the AFT filtering requirements.
摘要翻译：在电视接收机的调谐控制系统中，当视频载波的振幅相对恒定时，在消隐间隔期间对模拟AFT信号进行采样，因此不能显着影响AFT信号的幅度。这减少了AFT过滤要求。

4. 发明授权

US5619275A TV line and field detection apparatus with good noise immunity 失效
标题翻译：电视线和现场检测仪具有良好的抗噪声能力
公开(公告)号：US5619275A
公开(公告)日：1997-04-08
申请号：US382023
申请日：1995-02-09
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H04N5/10 , H04N7/087
CPC分类号： H04N5/10
摘要： 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.
摘要翻译： 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。

5. 发明授权

US5463423A Auxiliary video data detector and data slicer 失效
标题翻译：辅助视频数据检测器和数据限幅器
公开(公告)号：US5463423A
公开(公告)日：1995-10-31
申请号：US850200
申请日：1992-03-11
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H04N7/035 , H04N7/08
CPC分类号： H04N7/0355 , H04N7/035
摘要： 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.
摘要翻译：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。

6. 发明授权

US4575761A AFT arrangement for a double conversion tuner 失效
标题翻译： AFT安排用于双转换调谐器
公开(公告)号：US4575761A
公开(公告)日：1986-03-11
申请号：US489306
申请日：1983-04-28
申请人： David J. Carlson , Juri Tults
发明人： David J. Carlson , Juri Tults
IPC分类号： H03D7/16 , H03J7/02 , H03J7/06 , H04B1/26 , H04N5/00 , H04N7/10 , H04N5/44
CPC分类号： H03D7/161 , H03J7/065
摘要： A double conversion tuner stabilized against drift includes a first local oscillator included in a phase locked loop (PLL) and a second local oscillator included in an automatic fine tuning (AFT) loop. A switching arrangement selectively allows the AFT signal to control the second local oscillator only when the operation of the PLL has been completed and if the picture carrier of the IF signal produced at the output of the tuner is within the AFT control range to prevent the second local oscillator from being tuned incorrectly.
摘要翻译：针对漂移而稳定的双转换调谐器包括包括在锁相环（PLL）中的第一本地振荡器和包括在自动微调（AFT）环路中的第二本地振荡器。只有当PLL的操作已经完成并且如果在调谐器的输出处产生的IF信号的图像载波在AFT控制范围内时，开关装置选择性地允许AFT信号来控制第二本地振荡器，以防止第二本地振荡器本地振荡器调谐不正确。

7. 发明授权

US4484221A Shared counter arrangement for a digital frequency locked loop tuning system for selectively measuring the frequencies of the LO and IF signals 失效
标题翻译：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
公开(公告)号：US4484221A
公开(公告)日：1984-11-20
申请号：US413762
申请日：1982-09-01
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H03J7/06 , H04N5/50 , H04N5/44 , H04B1/16
CPC分类号： H03J7/065 , H04N5/50
摘要： 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.
摘要翻译：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。

8. 发明授权

US4367559A Arrangement for both channel swapping and favorite channel features 失效
标题翻译：频道交换和喜爱频道功能的排列
公开(公告)号：US4367559A
公开(公告)日：1983-01-04
申请号：US232213
申请日：1981-02-06
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H03J5/02 , H03J7/18 , H04B1/16
CPC分类号： H03J7/18 , H03J5/0263
摘要： 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.
摘要翻译：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。

9. 发明授权

US06693678B1 Data bus driver having first and second operating modes for coupling data to the bus at first and second rates 有权
标题翻译：数据总线驱动器具有第一和第二操作模式，用于以第一和第二速率将数据耦合到总线
公开(公告)号：US06693678B1
公开(公告)日：2004-02-17
申请号：US09581780
申请日：2000-11-09
申请人： Juri Tults , William John Testin
发明人： Juri Tults , William John Testin
IPC分类号： H04N514
CPC分类号： G06F13/4291 , Y10S348/901
摘要： Information is coupled to a data bus such as an I2C data bus using a push-pull circuit. The push-pull circuit provides for communicating on the data bus at two different data rates. The push-pull circuit includes an active pull-up device that is enabled during a first push-pull mode of operation for providing a high data rate. During a second normal mode of operation, the active pull-up device is disabled providing a low data rate. When the active pull-up device is deactivated, the clock and data buses are driven by the external resistors connected thereto at a data rate lower than the data rate during the first mode.
摘要翻译：使用推挽电路将信息耦合到诸如I 2 C数据总线的数据总线。推挽电路提供了在数据总线上以两种不同的数据速率进行通信。推挽电路包括有源上拉装置，其在第一推挽操作模式期间被使能以提供高数据速率。在第二正常操作模式期间，禁用有源上拉设备提供低数据速率。当激活上拉装置被去激活时，时钟和数据总线由连接在其上的外部电阻器以低于第一模式期间的数据速率的数据速率驱动。

10. 发明授权

US06339451B1 Graphical on-screen display system 有权
标题翻译：图形屏幕显示系统
公开(公告)号：US06339451B1
公开(公告)日：2002-01-15
申请号：US09254961
申请日：1999-03-22
申请人： Juri Tults
发明人： Juri Tults
IPC分类号： H04N550
CPC分类号： H04N5/44504 , G09G5/06
摘要： 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.
摘要翻译：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式