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1.发明授权Method and apparatus for automatic compensation of video signal losses from transmission over conductors 有权用于自动补偿通过导体传输的视频信号损失的方法和装置公开(公告)号：US08330550B2
公开(公告)日：2012-12-11
申请号：US11309122
申请日：2006-06-23
摘要： A method and apparatus for automatic compensation of insertion loss in video signals transmitted over conductors is presented. The present invention is particularly applicable to the transmission of video over long lengths of CAT-5 or similar twisted-pair cables. A reference signal having a known form and strength (e.g. a pulse signal) is provided to each pair of conductors carrying a component of a video signal from a transmitter to a receiver. The receiver includes adjustable gain amplifiers for each conductor pair over which a component of the video signal is transmitted. The gains of the amplifiers are initially set at an initial level (e.g., their maximum gain) to allow detection of the reference signal. Once the reference signal is detected in a conductor pair, the amplifier gains are adjusted such that the level of the reference signal is restored approximately to its original form and strength.
摘要翻译： 提出了一种通过导体传输的视频信号中自动补偿插入损耗的方法和装置。 本发明特别适用于CAT-5或类似双绞线电缆长距离传输视频。 具有已知形式和强度的参考信号（例如脉冲信号）被提供给承载来自发射机到接收机的视频信号的分量的每对导体。 接收器包括用于每个导体对的可调增益放大器，在该导体对上传输视频信号的分量。 放大器的增益最初设置在初始电平（例如，它们的最大增益），以允许检测参考信号。 一旦在导体对中检测到参考信号，则调整放大器增益，使得参考信号的电平大致恢复到其原始形式和强度。
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公开(公告)号：US08154664B2
公开(公告)日：2012-04-10
申请号：US12861316
申请日：2010-08-23
CPC分类号： H04N9/72
摘要： A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.
摘要翻译： 提出了视频信号中DC恢复的反馈电路。 从水平同步信号产生表示输入视频信号的后沿的采样脉冲。 采样脉冲触发采样和保持电路，以在后沿期间获取输出信号中的正确偏移电压。 偏移电压通过导致偏移的电路或输入放大器的上游的求和节点反馈，从而将视频信号恢复到相对于地面的期望的DC电压电平。
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公开(公告)号：US07787057B2
公开(公告)日：2010-08-31
申请号：US11309558
申请日：2006-08-22
CPC分类号： H04N9/72
摘要： A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.
摘要翻译： 提出了视频信号中DC恢复的反馈电路。 从水平同步信号产生表示输入视频信号的后沿的采样脉冲。 采样脉冲触发采样和保持电路，以在后沿期间获取输出信号中的正确偏移电压。 偏移电压通过导致偏移的电路或输入放大器的上游的求和节点反馈，从而将视频信号恢复到相对于地面的期望的DC电压电平。
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公开(公告)号：US20080062326A1
公开(公告)日：2008-03-13
申请号：US11309558
申请日：2006-08-22
IPC分类号： H04N9/72
CPC分类号： H04N9/72
摘要： A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.
摘要翻译： 提出了视频信号中DC恢复的反馈电路。 从水平同步信号产生表示输入视频信号的后沿的采样脉冲。 采样脉冲触发采样和保持电路，以在后沿期间获取输出信号中的正确偏移电压。 偏移电压通过导致偏移的电路或输入放大器的上游的求和节点反馈，从而将视频信号恢复到相对于地面的期望的DC电压电平。
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公开(公告)号：US08634028B2
公开(公告)日：2014-01-21
申请号：US13417798
申请日：2012-03-12
CPC分类号： H04N9/72
摘要： A feedback circuit for restoration of DC in electrical signals is presented. A sample pulse representing a DC portion of an electrical signal is generated. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the electrical signal during this DC portion. The offset voltage feeds back through a summing node to the electrical signal thereby restoring the video signal to the desired DC voltage level with respect to ground.
摘要翻译： 提出了一种用于恢复电信号中DC的反馈电路。 产生表示电信号的DC部分的采样脉冲。 采样脉冲触发采样和保持电路以在该DC部分期间获取电信号中的正确偏移电压。 偏移电压通过加法节点反馈到电信号，从而将视频信号恢复到相对于地面的期望的DC电压电平。
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公开(公告)号：US20110069236A1
公开(公告)日：2011-03-24
申请号：US12861316
申请日：2010-08-23
CPC分类号： H04N9/72
摘要： A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.
摘要翻译： 提出了视频信号中DC恢复的反馈电路。 从水平同步信号产生表示输入视频信号的后沿的采样脉冲。 采样脉冲触发采样和保持电路，以在后沿期间获取输出信号中的正确偏移电压。 偏移电压通过导致偏移的电路或输入放大器的上游的求和节点反馈，从而将视频信号恢复到相对于地面的期望的DC电压电平。
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7.发明申请公开(公告)号：US20070300284A1
公开(公告)日：2007-12-27
申请号：US11309122
申请日：2006-06-23
IPC分类号： H04N7/16
摘要： A method and apparatus for automatic compensation of insertion loss in video signals transmitted over conductors is presented. The present invention is particularly applicable to the transmission of video over long lengths of CAT-5 or similar twisted-pair cables. A reference signal having a known form and strength (e.g. a pulse signal) is provided to each pair of conductors carrying a component of a video signal from a transmitter to a receiver. The receiver includes adjustable gain amplifiers for each conductor pair over which a component of the video signal is transmitted. The gains of the amplifiers are initially set at an initial level (e.g., their maximum gain) to allow detection of the reference signal. Once the reference signal is detected in a conductor pair, the amplifier gains are adjusted such that the level of the reference signal is restored approximately to its original form and strength.
摘要翻译： 提出了一种通过导体传输的视频信号中自动补偿插入损耗的方法和装置。 本发明特别适用于CAT-5或类似双绞线电缆长距离传输视频。 具有已知形式和强度的参考信号（例如脉冲信号）被提供给承载来自发射机到接收机的视频信号的分量的每对导体。 接收器包括用于每个导体对的可调增益放大器，在该导体对上传输视频信号的分量。 放大器的增益最初设置在初始电平（例如，它们的最大增益），以允许检测参考信号。 一旦在导体对中检测到参考信号，则调整放大器增益，使得参考信号的电平大致恢复到其原始形式和强度。
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公开(公告)号：US07796194B2
公开(公告)日：2010-09-14
申请号：US11850671
申请日：2007-09-05
申请人： Raymond William Hall
发明人： Raymond William Hall
IPC分类号： H04N5/46
CPC分类号： H04N7/0102
摘要： A video format identification system includes a master clock circuit which provides timing and counting signals, a synchronization activity detector operatively coupled to the master clock circuit, and a synchronization width qualifier configured to filter out noise or reference burst signals from showing up as sync signals. The system also includes a synchronization detector which regulates the rate of the incoming sync signal, a color burst sampler providing a window for sampling a reference color burst after the sync signal has occurred, and a color burst detector which looks for at least three transitions from a burst signal before it qualifies the as an appropriate reference color burst. A format sample timer generates sample clock signals. A format sample counter produces “take format” signals which are utilized by a set of format counter. The system further includes a video format identifier which enables a particular video format to be directed to a respective video connector.
摘要翻译： 视频格式识别系统包括提供定时和计数信号的主时钟电路，可操作地耦合到主时钟电路的同步活动检测器，以及被配置为滤除噪声或参考突发信号从而显示为同步信号的同步宽度限定器。 该系统还包括调节输入同步信号的速率的同步检测器，在同步信号发生之后提供用于采样参考彩色脉冲串的窗口的彩色脉冲串采样器以及寻找至少三个转换的色同步检测器 之前的突发信号被认定为适当的参考颜色突发。 格式采样定时器产生采样时钟信号。 格式采样计数器产生由一组格式计数器使用的“采用格式”信号。 该系统还包括使特定视频格式被引导到相应的视频连接器的视频格式标识符。
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9.发明授权Method and apparatus for automatic reduction of noise in video transmitted over conductors 有权用于自动降低通过导体传输的视频中的噪声的方法和装置公开(公告)号：US07808557B2
公开(公告)日：2010-10-05
申请号：US11309123
申请日：2006-06-23
申请人： Raymond William Hall
发明人： Raymond William Hall
摘要： A method and apparatus for automatic reduction of noise in video signals transmitted over conductors is presented. The present invention provides an adjustable amount of noise filtering matched to the amount of gain provided by an adjustable gain amplifier to a received video signal. One or more stages of a multi-stage discrete gain amplifier is provided with a corresponding noise filter circuit. The filter circuit is matched to the frequency response of and the amount of gain provided by the discrete gain amplifier stage. When the amplifier stage is applied to the received signal, the corresponding noise filter for that stage is invoked as well. In that manner, the amount of noise filtering applied to a video signal automatically varies with the amount of amplification provided to that signal.
摘要翻译： 提出了一种通过导线传输的视频信号中自动降低噪声的方法和装置。 本发明提供了与可调节增益放大器对接收的视频信号所提供的增益量相匹配的可调整量的噪声滤波。 多级离散增益放大器的一个或多个级设置有相应的噪声滤波器电路。 滤波电路与离散增益放大器级的频率响应和增益量相匹配。 当放大器级应用于接收信号时，也会调用该级的相应噪声滤波器。 以这种方式，施加到视频信号的噪声滤波量自动随着提供给该信号的放大量而变化。
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公开(公告)号：US6112276A
公开(公告)日：2000-08-29
申请号：US949102
申请日：1997-10-10
CPC分类号： G06F3/061 , G06F3/0655 , G06F3/0674 , G06F3/0632
摘要： A modular disk memory apparatus provides a modularly expandable, multi-gigabyte auxiliary memory for a computer or other host electronic device, and includes multiple, parallel serial data channels to maximize bidirectional data transfer rates between the apparatus and the host device. Maximization of READ/WRITE data transfer rates within the apparatus is achieved by utilizing a large number of small hard disk drives, typically eight 2.5-inch drives on each of a plurality of Disk Storage Modules, each including a plug-in printed circuit board capable of holding two 5-1/4 inch drives, thereby increasing the maximum data transfer rate per unit volume of the modules by a factor of two. Maximization of bidirectional data transfer rates between the apparatus and host device over that attainable using a single serial data channel such as a coaxial, quadaxial or fiber optic cable, is achieved by parsing or demultiplexing data to be transmitted from a single parallel channel onto p paralleled cables, thereby increasing the maximum transmittal rate by p. Data received over the parallel data channels is multiplexed or concatenated to comprise a data stream on a single parallel channel. Reconstruction data is embedded in data contained in the p parallel data channels specifying the number q of channels employed, where 1.ltoreq.q.ltoreq.p thereby configuring the demultiplexer to concatenate that number of data channels onto a single parallel data bus.
摘要翻译： 模块化磁盘存储装置为计算机或其他主机电子设备提供模块化可扩展的多吉字节辅助存储器，并且包括多个并行串行数据信道，以最大化设备和主机设备之间的双向数据传输速率。 通过利用大量小型硬盘驱动器（通常在多个磁盘存储模块中的每一个上的八个2.5英寸驱动器）来实现装置内READ / WRITE数据传输速率的最大化，每个驱动器包括能够插入的印刷电路板 持有两个5 + E，1/4 + EE英寸驱动器，从而将模块的每单位体积的最大数据传输速率提高了2倍。 通过使用单个串行数据通道（例如同轴，四轴或光纤电缆）可实现的设备和主机设备之间的双向数据传输速率的最大化通过解析或解复用将从单个并行通道发送到p并行的数据来实现 电缆，从而通过p增加最大传输速率。 通过并行数据信道接收的数据被多路复用或级联以在单个并行通道上包括数据流。 重建数据被嵌入在包含在p个并行数据信道中的数据中，该数据通道指定所采用的信道的数量q，其中，1 =＆lt; p = p，从而配置多路分解器将该数量的数据信道连接到单个并行数据总线上。
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