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1. 发明授权

US5473361A Cable television test and measurement system 失效
标题翻译：有线电视测试和测量系统
公开(公告)号：US5473361A
公开(公告)日：1995-12-05
申请号：US214995
申请日：1994-03-21
申请人： Bruce J. Penney
发明人： Bruce J. Penney
IPC分类号： H04N7/10 , H04N17/00 , H04N7/14 , H04N7/173
CPC分类号： H04N7/102 , H04N17/00
摘要： A test and measurement system for a cable television (CATV) system measures parameters of a broadband video signal at the headend of the CATV system. Characteristic data is generated from the measured parameters and combined with the broadband video signal for transmission over the distribution system of the CATV system. Also out of service video channels are detected at the headend, and a test sequence is combined with the broadband video signal for each out of service channel. In the field a receiver is coupled to a point in the distribution system to measure the parameters of the broadband video signal at that point. The parameters measured at the receiver are compared with the parameters measured at the headend, as derived from the transmitted characteristic data. The differences between the two sets of parameters are displayed to present a display of the characteristics of the CATV system, with out of service channels represented by the test sequences.
摘要翻译：有线电视（CATV）系统的测试和测量系统测量CATV系统前端宽带视频信号的参数。特征数据由测量参数产生，并与宽带视频信号相结合，用于在CATV系统的分布系统上进行传输。在头端还检测出服务中的视频信道，并且测试序列与用于每个服务外信道的宽带视频信号组合。在现场，接收机耦合到分配系统中的一个点，以测量该点处的宽带视频信号的参数。将接收机测量的参数与从头端测量的参数进行比较，从传输的特征数据中得出。显示两组参数之间的差异，以呈现CATV系统的特性的显示，其中由测试序列表示的服务外信道。

2. 发明授权

US5325131A Multiformat television switcher 失效
标题翻译：多格式电视切换器
公开(公告)号：US5325131A
公开(公告)日：1994-06-28
申请号：US055099
申请日：1993-05-03
申请人： Bruce J. Penney
发明人： Bruce J. Penney
IPC分类号： H04H20/00 , H04N5/222 , H04N5/268 , H04N5/46
CPC分类号： H04N5/268 , H04N5/46
摘要： A mulltiformat television switcher adds an up-converter, a down-converter and an auxiliary selector to an existing master control switcher to provide the ability to provide both a standard format output video signal (NTSC, PAL, SECAM, etc.) and a HDTV format output video signal corresponding to a selected input video signal from a plurality of input video sources which include both standard and HDTV formats. The master control switcher provides a selected one of the standard format input video signals to a standard format input of the auxiliary selector and to the up-converter, and provides a control signal to the auxiliary selector. The HDTV format input video signals and the HDTV format video signal output from the up-converter are applied to HDTV inputs of the auxiliary selector. The auxiliary selector provides an HDTV format output video signal, selected from the HDTV inputs, and a corresponding standard format output video signal, selected from the standard format inputs, according to the video signal source selected by an operator at the master control switcher. A down-converter converts the HDTV format output video signal to a standard format video signal that is applied to other standard format inputs of the auxiliary selector. When the operator selects the video signal source, it is either up-converted or down-converted as necessary and output in both formats by the auxiliary selector.
摘要翻译： Mulltiformat电视切换器将一个上变频器，一个下变换器和一个辅助选择器添加到现有的主控制切换器，以提供提供标准格式输出视频信号（NTSC，PAL，SECAM等）和HDTV 格式化输出视频信号对应于来自包括标准和HDTV格式的多个输入视频源的所选输入视频信号。主控制切换器将标准格式输入视频信号中选择的一个提供给辅助选择器和上变频器的标准格式输入，并向辅助选择器提供控制信号。从上转换器输出的HDTV格式输入视频信号和HDTV格式视频信号应用于辅助选择器的HDTV输入。辅助选择器根据由主控切换台操作者选择的视频信号源，提供从HDTV输入中选择的HDTV格式输出视频信号，以及从标准格式输入中选择的对应的标准格式输出视频信号。下变频器将HDTV格式的输出视频信号转换为适用于辅助选择器的其他标准格式输入的标准格式视频信号。当操作员选择视频信号源时，根据需要进行上变频或下变频，并通过辅助选择器以两种格式输出。

3. 发明授权

US5001549A Television signal generator 失效
标题翻译：电视信号发生器
公开(公告)号：US5001549A
公开(公告)日：1991-03-19
申请号：US236278
申请日：1988-08-23
申请人： Dennis L. Holmbo , Bruce J. Penney , John C. Reynolds
发明人： Dennis L. Holmbo , Bruce J. Penney , John C. Reynolds
IPC分类号： H04N17/02
CPC分类号： H04N17/02
摘要： A television signal generator which is fully digital has digital data stored in PROMs, one PROM for each component of the desired encoded television signal corresponding to luminance data and chrominance data. A system clock allows a signal address generator to fetch data from the PROMs. The chrominance data from the PROMs is mixed with appropriate digital representations of a sinusoidal function and a phase offset and is added to the luminance data. The combined digital signal is converted to analog, filtered and output as the desired encoded television signal.
摘要翻译：完全数字的电视信号发生器具有存储在PROM中的数字数据，一个PROM用于对应于亮度数据和色度数据的所需编码电视信号的每个分量。系统时钟允许信号地址发生器从PROM获取数据。来自PROM的色度数据与正弦函数和相位偏移的适当数字表示混合，并被加到亮度数据中。组合的数字信号被转换为模拟，滤波和输出作为期望的编码电视信号。

4. 发明授权

US4829366A Method and apparatus for measuring delay and/or gain difference using two different frequency sources 失效
标题翻译：使用两个不同频率源测量延迟和/或增益差异的方法和装置
公开(公告)号：US4829366A
公开(公告)日：1989-05-09
申请号：US722943
申请日：1985-04-12
申请人： Bruce J. Penney
发明人： Bruce J. Penney
IPC分类号： H04N17/02 , G01R27/28 , H04N17/00
CPC分类号： H04N17/00
摘要： The relative gain and/or delay of two signal transmission channels may be measured by impressing on each channel a repetitive signal comprising a burst packet. The burst packets of the signals applied to the channels are of constant, but different, frequencies, and their amplitudes are related in predetermined manner. The two burst packets are timed to have a predetermined phase relationship at a selected time during the packets. The output signals of the two channels are additively combined, and a determination is made as to at least one of (a) the amplitude of the combined signal at a turning point in the amplitude of the signal envelope and (b) the time relative to the selected time at which a turning point in the amplitude of the signal envelope occurs.
摘要翻译：两个信号传输信道的相对增益和/或延迟可以通过在每个信道上施加包括突发分组的重复信号来测量。施加到信道的信号的突发分组是恒定的但是不同的频率，并且它们的振幅以预定的方式相关。在分组期间，两个突发分组被定时以在选定的时间具有预定的相位关系。两个信道的输出信号被相加地组合，并且确定以下中的至少一个：（a）信号包络的振幅中的转折点处的组合信号的幅度和（b）相对于信号包络的振幅转折点的选定时间。

5. 发明授权

US5943508A Switcher using shared decompression processors for processing both broadband and compressed video data 失效
标题翻译：切换器使用共享解压缩处理器处理宽带和压缩视频数据
公开(公告)号：US5943508A
公开(公告)日：1999-08-24
申请号：US901042
申请日：1997-07-28
申请人： Bruce J. Penney , Philip S. Crosby
发明人： Bruce J. Penney , Philip S. Crosby
IPC分类号： H04N5/262 , H04N5/268 , H04N7/26 , H04N5/46
CPC分类号： H04N19/00 , H04N19/439 , H04N5/262 , H04N5/268
摘要： A switcher using shared processors has an input matrix with a plurality of inputs to which a corresponding plurality of sources may be coupled. One or more of the sources may provide compressed data. The input matrix routes selected ones of the sources to a plurality of outputs which is less in number than the number of inputs, the routing being determined by a tally output. A pool of processors, such as compression decoders, color correctors or the like, are coupled to the outputs of the input matrix as needed for processing those sources that require such processing to provide processed data. The outputs of the processors provide processed data to a conventional switcher that combines the selected processed data to provide a program output. The conventional switcher also provides the tally output. For sources that provide inter-frame compressed data, the conventional switcher provides a preview output and a preview tally output so that the necessary time delay for decompressing such data is anticipated to minimize delay in switching the preview output to the program output. A resource management module keeps track of which processors are committed to which sources.
摘要翻译：使用共享处理器的切换器具有具有多个输入的输入矩阵，相应的多个源可耦合到多个输入。一个或多个源可以提供压缩数据。输入矩阵将选择的一个源路由到输入数量少于输入数量的多个输出，路由由计数输出确定。处理器池（诸如压缩解码器，色彩校正器等）根据需要被耦合到输入矩阵的输出端，用于处理需要这种处理以提供处理数据的那些源。处理器的输出将经处理的数据提供给组合所选择的处理数据以提供程序输出的常规切换器。传统的切换器还提供计数输出。对于提供帧间压缩数据的源，常规切换器提供预览输出和预览计数输出，以便预期解压缩这些数据所需的时间延迟最小化将预览输出切换到程序输出的延迟。资源管理模块跟踪哪些处理器被承诺到哪些源。

6. 发明授权

US5786871A Constant luminance corrector 失效
标题翻译：恒定亮度校正器
公开(公告)号：US5786871A
公开(公告)日：1998-07-28
申请号：US625381
申请日：1996-04-01
申请人： Bruce J. Penney
发明人： Bruce J. Penney
IPC分类号： H04N9/64 , H04N11/12 , H04N5/21
CPC分类号： H04N11/12 , H04N9/646
摘要： A constant luminance corrector for a television system determines brightness information that is discarded in the chrominance channels of an encoder, and adds it to the luminance channel of the encoder. Gamma-corrected luminance and chrominance component signals from a video source, such as a video camera, video tape recorder or the like, are input to the encoder which outputs an encoded luminance component signal and an encoded chrominance component signal that are combined to form a composite signal. The gamma-corrected component signals also are input to a luminance predictor circuit, or alternatively in lieu of the gamma-corrected chrominance component signals a coded chrominance signal and a discarded chrominance signal from the encoder may be input to the luminance predictor circuit. Likewise the encoded luminance component signal may be input to the luminance predictor circuit in lieu of the gamma-corrected luminance component signal. From these signals the luminance predictor circuit produces an ideal and an actual luminance component signal for comparison. A luminance correction signal, representing the lost brightness information, is produced from the difference between the ideal and actual luminance component signals. The luminance correction signal is input to the luminance channel of the encoder for combination with the gamma-corrected luminance signal to restore the brightness lost in the chrominance channels to the luminance channel.
摘要翻译：用于电视系统的恒定亮度校正器确定在编码器的色度通道中丢弃的亮度信息，并将其添加到编码器的亮度通道。来自视频源（例如摄像机，录像机等）的伽马校正的亮度和色度分量信号被输入到编码器，该编码器输出经编码的亮度分量信号和经编码的色度分量信号，复合信号。伽马校正的分量信号也被输入到亮度预测器电路，或者代替伽马校正的色度分量信号，编码的色度信号和来自编码器的丢弃的色度信号可以被输入到亮度预测器电路。同样地，编码的亮度分量信号可以被输入到亮度预测器电路来代替伽马校正的亮度分量信号。从这些信号中，亮度预测器电路产生用于比较的理想值和实际亮度分量信号。从理想亮度分量信号和实际亮度分量信号之间的差产生表示失真亮度信息的亮度校正信号。亮度校正信号被输入到编码器的亮度通道，与伽马校正的亮度信号组合，以将色度通道中的亮度损失恢复到亮度通道。

7. 发明授权

US4751565A Microprocessor controlled digital genlock 失效
标题翻译：微处理器控制的数字锁相
公开(公告)号：US4751565A
公开(公告)日：1988-06-14
申请号：US915858
申请日：1986-10-06
申请人： Patten A. Emmons , Bruce J. Penney , Timothy W. Slate
发明人： Patten A. Emmons , Bruce J. Penney , Timothy W. Slate
IPC分类号： H03L7/06 , H03L7/091 , H03L7/14 , H04N9/45 , H04N9/455 , H04N11/00 , H04N11/24 , H04N17/02
CPC分类号： H03L7/14 , H03L7/091 , H04N17/02 , H04N9/455
摘要： A digital phase-locked loop maintains a clock signal in a predetermined phase and frequency relationship with an input video signal having a repeating signal element, such as horizontal sync pulses and/or color burst signals. The clock signal is generated by a voltage controlled oscillator, the frequency of which depends on an input digital control signal. The input video signal is sampled by an analog-to-digital converter at the clock signal frequency to generate a succession of digital words representing the amplitudes of successive samples. A portion of the successive digital words is stored in a memory, the access to which is controlled so that the samples representing the repeating signal element are stored and then read out for processing by a microprocessor. The digital control signal from the microprocessor which is input to the oscillator represents the difference between the actual phase and frequency relationship between the clock signal and the repeating signal element and the desired predetermined phase and frequency relationship so that the oscillator frequency is varied to attach such predetermined phase and frequency relationship.
摘要翻译：数字锁相环保持与具有诸如水平同步脉冲和/或色同步信号的重复信号元素的输入视频信号预定的相位和频率关系的时钟信号。时钟信号由压控振荡器产生，其频率取决于输入数字控制信号。输入视频信号由模数转换器以时钟信号频率进行采样，以产生代表连续采样振幅的数字字的一系列数据。连续数字字的一部分被存储在存储器中，对其的访问进行控制，使得表示重复信号元素的样本被存储，然后被读出以供微处理器处理。来自微处理器的输入到振荡器的数字控制信号表示时钟信号和重复信号元件之间的实际相位和频率关系之间的差异以及期望的预定相位和频率关系，使得振荡器频率被改变以附加预定的相位和频率关系。

8. 发明授权

US4707727A Apparatus for providing an indication that a color represented by a Y, R-Y, B-Y color television signal is validly reproducible on an RGB color display device 失效
标题翻译：用于提供由Y，R-Y，B-Y彩色电视信号表示的颜色在RGB彩色显示装置上有效重现的指示的装置
公开(公告)号：US4707727A
公开(公告)日：1987-11-17
申请号：US849615
申请日：1986-04-08
申请人： Bruce J. Penney
发明人： Bruce J. Penney
IPC分类号： H04N17/02 , G03F3/08 , H04N9/67
CPC分类号： H04N17/02
摘要： Apparatus for providing an indication that a color represented by a color video signal having a luminance component Y and two color difference components R-Y, B-Y is validly reproducible on an RGB color display device. A resistive matrix converts the Y, R-Y, B-Y components of the color video signal to three primary color components R, G, B. Comparators compare the amplitude of each primary color component with predetermined minimum and maximum values, and an OR-gate produces a gamut error signal if the amplitude of one or more of the primary color components is outside the range established by the corresponding predetermined minimum and maximum values. The gamut error signal is applied to a display modifier which modifies the luminance and color difference components to produce a visually distinct effect on a waveform or display monitor. Alternatively, the gamut error signal may be applied to, for example, a color shutter incorporated in the waveform or display monitor to modify the color of the display.
摘要翻译：用于提供由具有亮度分量Y和两个色差分量R-Y，B-Y的彩色视频信号表示的颜色在RGB彩色显示装置上有效再现的指示的装置。电阻矩阵将彩色视频信号的Y，RY，BY分量转换为三原色分量R，G，B。比较器将每个原色分量的幅度与预定的最小值和最大值进行比较，并且OR门产生如果原色分量中的一个或多个的幅度超出由相应的预定最小值和最大值建立的范围之外的色域误差信号。色域误差信号被施加到显示修改器，其修改亮度和色差分量以对波形或显示监视器产生视觉上不同的影响。或者，色域误差信号可以应用于例如结合在波形或显示监视器中的色门以修改显示器的颜色。

9. 发明授权

US4535357A Video signal processing circuit and method for blanking signal insertion with transient distortion suppression 失效
标题翻译：视频信号处理电路和消隐信号插入与瞬态失真抑制方法
公开(公告)号：US4535357A
公开(公告)日：1985-08-13
申请号：US483321
申请日：1983-04-08
申请人： Bruce J. Penney
发明人： Bruce J. Penney
IPC分类号： H04N5/04 , H04N5/067 , H04N5/14 , H04N5/262 , H04N5/06
CPC分类号： H04N5/0675
摘要： A video signal processing circuit and method for the insertion of a blanking data signal including blanking pulse, horizontal sync and color burst signal components into an input video signal to provide a modified video signal. The modified video signal is subjected to signal shaping to reduce the slopes of the front and rear edges of the blanking pulse portion in order to suppress transient overshoot and ringing distortion when the resultant output video signal is transmitted through a low pass filter. The signal shaping is preferably provided by a voltage controlled amplifier whose gain control terminal is connected to a control voltage which varies during the blanking pulse and is provided at the output of a slew limited amplifier or a non-linear low pass filter with a sine squared pulse response. The input of the slew limited amplifier is connected to an electronic switch operated by a timing circuit for selectively switching between different gain voltage sources. The timing circuit also applies a switching signal to another electronic switch providing a blanking data insertion means which selectively applies the input video signal or the blanking data signal to the input of the voltage controlled amplifier. An analog to digital converter can be employed to convert the input video signal to a digital signal for storage in a memory and further processing before insertion of digital blanking data.
摘要翻译：一种用于将包括消隐脉冲，水平同步和色同步信号分量的消隐数据信号插入输入视频信号以提供经修改的视频信号的视频信号处理电路和方法。对经修改的视频信号进行信号整形以减少消隐脉冲部分的前边缘和后边缘的斜率，以便当所得到的输出视频信号通过低通滤波器传输时，抑制瞬态过冲和振铃失真。信号整形优选由电压控制放大器提供，其增益控制端子连接到在消隐脉冲期间变化的控制电压，并且被设置在具有正弦平方的转换有限放大器或非线性低通滤波器的输出端脉冲响应。摆幅限制放大器的输入端连接到由定时电路操作的电子开关，用于选择性地在不同的增益电压源之间切换。定时电路还向另一电子开关提供切换信号，提供消隐数据插入装置，其将输入视频信号或消隐数据信号选择性地施加到压控放大器的输入端。可以使用模数转换器将输入视频信号转换为数字信号以存储在存储器中，并在插入数字消隐数据之前进一步处理。

10. 发明授权

US5231489A Moire measurement system using spectral analysis 失效
标题翻译：波纹测量系统采用光谱分析
公开(公告)号：US5231489A
公开(公告)日：1993-07-27
申请号：US879236
申请日：1992-05-06
申请人： Bruce J. Penney
发明人： Bruce J. Penney
IPC分类号： H04N17/04 , H04N17/00
CPC分类号： H04N17/00
摘要： A Moire measurement system uses spectral analysis to characterize the moire effect on a television signal introduced by a particular device. A known television signal is processed by the particular device, such as a video tape recorder, and the output is input to a spectral analyzer, such a windowed fast Fourier transform. The spectral analyzer includes input gating to select a portion of the known television signal from the particular device. The frequency of the desired component of the known television signal, together with the rms values of all the other components introduced by the Moire effect, give the X- and Y-coordinates of a point on an output display. The window is moved across the test signal, giving a family of X- and Y-coordinates that characterize the Moire effect as a function of amplitude, frequency or video pedestal. The Moire characteristics of the particular device then may be used to correct the output of the particular device.
摘要翻译：莫尔测量系统使用光谱分析来表征由特定设备引入的电视信号上的莫尔效应。已知的电视信号由诸如磁带录像机的特定设备处理，并且输出被输入到频谱分析仪，这样的窗口快速傅里叶变换。频谱分析仪包括输入门控以从特定装置中选择已知电视信号的一部分。已知电视信号的期望分量的频率以及由莫尔效应引入的所有其它分量的有效值给出输出显示器上的点的X和Y坐标。窗口移动穿过测试信号，给出一个X和Y坐标系，将莫尔效应表征为幅度，频率或视频基座的函数。然后可以使用特定设备的莫尔特性来校正特定设备的输出。

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