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公开(公告)号：EP0339203A1
公开(公告)日：1989-11-02
申请号：EP89102980.3
申请日：1989-02-21
IPC分类号： G01R13/22
CPC分类号： G01R13/26
摘要： A cathode-ray display for displaying a trace has a memory to store portions of digitised imput signal. An analogue signal is created from the memory and is added to a ramp signal corresponding to the ramp signal utilised to control the field scanning of the cathode-ray display. A further high frequency signal is added to the superimposed analogue signal and ramp signal. The resultant combined signal is supplied to voltage discrimination means which control a switch which, in turn, controls the electron gun of the cathode-ray display.
摘要翻译： 用于显示迹线的阴极射线显示器具有用于存储数字化输入信号的部分的存储器。 从存储器产生模拟信号，并将其加到对应于用于控制阴极射线显示器的场扫描的斜坡信号的斜坡信号。 另外的高频信号被加到叠加的模拟信号和斜坡信号上。 所得到的组合信号被提供给电压鉴别装置，该电压鉴别装置控制开关，其继而控制阴极射线显示器的电子枪。
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2.发明公开Digital oscilloscope architecture for signal monitoring with enhanced duty cycle 失效ArchitekturfürDigitaloszilloskop zurSignalüberwachungmit verbicultem Arbeitszyklus。
公开(公告)号：EP0677746A2
公开(公告)日：1995-10-18
申请号：EP95302325.6
申请日：1995-04-07
申请人： TEKTRONIX, INC.
CPC分类号： G01R13/345 , G01R13/0227 , G01R13/26
摘要： To increase the percentage of time that an input signal is actively monitored, a digital oscilloscope has an acquisition system (100) that includes an analog-to-digital converter (15), an acquisition memory (40), an acquisition rasterizer (50), and a raster acquisition memory (60). The rasterizer contains circuitry (52) for concurrently rasterizing and combining the results of several acquisitions together and with a stored composite raster image to produce a new composite raster image, while additional acquisition records are being created and stored in the acquisition memory. A display system (220) takes the composite raster images after they contain the results of many acquisitions and overlays these single-bit raster images on a multi-bit raster image that is then decremented to produce a simulated persistence effect. The number of new pixels turned on as a result of each acquisition can be counted during the combining process and used to stop acquisitions, signal the operator, or specially treat that particular acquisition when the number of new pixels created by a particular acquisition exceeds a predetermined value. Acquisition circuitry for multiple channels can be used on one channel to further increase the percentage of time that the signal is monitored.
摘要翻译： 为了增加主动监视输入信号的时间百分比，数字示波器具有采集系统（100），其包括模数转换器（15），采集存储器（40），采集光栅化器（50） ，以及光栅采集存储器（60）。 光栅化器包括电路（52），用于同时光栅化并将多个采集的结果组合在一起并与存储的复合光栅图像组合以产生新的复合光栅图像，同时另外获取记录被创建并存储在采集存储器中。 显示系统（220）在它们包含许多获取的结果并且将这些单位光栅图像重叠在多位光栅图像上之后，接着复合光栅图像，然后将其减少以产生模拟的持续效应。 作为每次获取的结果而打开的新像素的数量可以在组合处理期间被计数，并用于停止采集，向操作员发信号，或者当由特定采集创建的新像素的数量超过预定值时特别处理该特定采集 值。 可以在一个通道上使用多个通道的采集电路，以进一步增加监控信号的时间百分比。
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公开(公告)号：EP0021486B1
公开(公告)日：1983-02-09
申请号：EP80200518.1
申请日：1980-06-04
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4.发明公开Apparatus for counteracting the cathode current increase occurring during warming-up in a travelling-wave tube in response to variation in the grid-cathode distance 失效一种用于时的TWT阴极电流增加的启动阶段限制了栅 - 阴极距离引起的变化的设备。
公开(公告)号：EP0037385A2
公开(公告)日：1981-10-07
申请号：EP81850055.5
申请日：1981-03-25
CPC分类号： G01R31/255 , G01R13/26 , G01R17/06 , H03F1/544
摘要： Apparatus for compensating the injurious increase ofthe cathode current occurring during the initial operation period of a travelling-wave tube when, during successive warming-up, the grid first approaches the cathode and then assumes the nominal distance therefrom. The apparatus includes a distance control device measuring the deviation between the actual grid-cathode distance and the nominal distance and generating a control signal proportional to the deviation for reducing the value of the grid voltage.
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5.发明授权Digital oscilloscope architecture for signal monitoring with enhanced duty cycle 失效数字示波器架构，用于增强占空比的信号监测
公开(公告)号：EP1074845B1
公开(公告)日：2008-09-03
申请号：EP00203335.5
申请日：1995-04-07
申请人： TEKTRONIX, INC.
CPC分类号： G01R13/345 , G01R13/0227 , G01R13/26
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6.发明公开Digital oscilloscope architecture for signal monitoring with enhanced duty cycle 失效体系结构具有改进的占空比信号监测数字示波器。
公开(公告)号：EP0677746A3
公开(公告)日：1996-10-23
申请号：EP95302325.6
申请日：1995-04-07
申请人： TEKTRONIX, INC.
CPC分类号： G01R13/345 , G01R13/0227 , G01R13/26
摘要： To increase the percentage of time that an input signal is actively monitored, a digital oscilloscope has an acquisition system (100) that includes an analog-to-digital converter (15), an acquisition memory (40), an acquisition rasterizer (50), and a raster acquisition memory (60). The rasterizer contains circuitry (52) for concurrently rasterizing and combining the results of several acquisitions together and with a stored composite raster image to produce a new composite raster image, while additional acquisition records are being created and stored in the acquisition memory. A display system (220) takes the composite raster images after they contain the results of many acquisitions and overlays these single-bit raster images on a multi-bit raster image that is then decremented to produce a simulated persistence effect. The number of new pixels turned on as a result of each acquisition can be counted during the combining process and used to stop acquisitions, signal the operator, or specially treat that particular acquisition when the number of new pixels created by a particular acquisition exceeds a predetermined value. Acquisition circuitry for multiple channels can be used on one channel to further increase the percentage of time that the signal is monitored.
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公开(公告)号：EP0118047B1
公开(公告)日：1986-10-22
申请号：EP84101243.8
申请日：1984-02-07
申请人： TEKTRONIX, INC.
IPC分类号： G01R13/26
CPC分类号： G01R13/26
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公开(公告)号：EP0021486A1
公开(公告)日：1981-01-07
申请号：EP80200518.1
申请日：1980-06-04
摘要： A device for displaying an analog signal on a display screen (7) which is scanned by means of a line deflection generator (21) and a frame deflection generator (23). The device comprises a signal processing device (13) forforming a processed signal by repeating the analog signal at the line deflection frequency, a reference voltage generator (19) for generating a reference voltage which is dependent on the frame deflection voltage, and a comparator (17) for comparing the reference voltage and the processed signal and for generating a control signal which causes a brightening of the scanned display screen (7) when both signals are approximately equal. In order to improve the picture quality, the device comprises means (18) for adding a varying auxiliary signal to the processed signal. The frequency of this auxiliary signal amounts to at least ten times the line deflection frequency.
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公开(公告)号：EP1462809A1
公开(公告)日：2004-09-29
申请号：EP04251391.1
申请日：2004-03-10
申请人： Tektronix Inc.
摘要： A system for determining which waveforms should be preserved in memory (22) for eventual display by an oscilloscope. An input signal (1) is processed by a rasterizer (14). A pixel counter (15) monitors the frequency of usage of each pixel available for display in the rasterized image, and a unique waveform threshold calculator (24) compares pixel utilization during an image acquisition period. The calculator (24) identifies those waveforms that deviate significantly from the normal input signal waveform (1) and sends them to a scoring processor (21) which assigns each unique waveform (2) a value indicative of the magnitude of its deviation from previous waveforms. The scoring processor (21) also compares the scores of each unique waveform and assigns a ranking to each waveform. The lowest ranking waveform is overwritten in its segment of memory (22) as waveforms with higher rankings are processed.
摘要翻译： 用于确定在存储器（22）中应该保留哪些波形以由示波器最终显示的系统。 输入信号（1）由光栅化器（14）处理。 像素计数器（15）监视可用于在光栅化图像中显示的每个像素的使用频率，并且唯一波形阈值计算器（24）比较图像采集周期期间的像素利用率。 计算器（24）识别那些从正常输入信号波形（1）显着偏离的波形，并将它们发送到刻痕处理器（21），该处理器将每个唯一波形（2）分配给其偏离幅度的值 。 评分处理器（21）还比较每个独特波形的得分，并为每个波形分配等级。 最低等级的波形在其存储器段（22）中被覆盖，因为处理较高等级的波形。
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10.发明公开Digital oscilloscope architecture for signal monitoring with enhanced duty cycle 失效架构用于具有改进的周期信号监控数字示波器
公开(公告)号：EP1074845A3
公开(公告)日：2001-02-14
申请号：EP00203335.5
申请日：1995-04-07
申请人： Tektronix, Inc.
CPC分类号： G01R13/345 , G01R13/0227 , G01R13/26
摘要： To increase the percentage of time that an input signal is actively monitored, a digital oscilloscope has an acquisition system (100) that includes an analog-to-digital converter (15), an acquisition memory (40), an acquisition rasterizer (50), and a raster acquisition memory (60). The rasterizer contains circuitry (52) for concurrently rasterizing and combining the results of several acquisitions together and with a stored composite raster image to produce a new composite raster image, while additional acquisition records are being created and stored in the acquisition memory. A display system (220) takes the composite raster images after they contain the results of many acquisitions and overlays these single-bit raster images on a multi-bit raster image that is then decremented to produce a simulated persistence effect. The number of new pixels turned on as a result of each acquisition can be counted (57) during the combining process and used to stop acquisitions, signal the operator, or specially treat that particular acquisition when the number of new pixels created by a particular acquisition exceeds a predetermined value. Acquisition circuitry for multiple channels can be used on one channel to further increase the percentage of time that the signal is monitored.
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