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公开(公告)号：US08662676B1
公开(公告)日：2014-03-04
申请号：US13628450
申请日：2012-09-27
Applicant: Rawles LLC
Inventor： Samuel Henry Chang , Edward Dietz Crump , Manika Puri , Steve G. Gonzalez
CPC classification number: H04N9/3194 , G03B17/54 , G03B21/142 , H04N9/3185 , H04N17/002
Abstract: Devices and techniques are described for automatically calibrating a projector system. The projector system undergoing calibration is coupled to a computing device and an automated positioning platform coupled to a target structure. The computing device acquires images using a calibrated camera of one or more patterns projected by the projector onto the target structure when the target structure is in a plurality of repeatable poses. From these acquired images, intrinsic projector parameters may be determined. Once determined, the parameters may be used to correct images produced by the projector or acquired by the camera which include a projected pattern or portion thereof.
Abstract translation: 描述了自动校准投影仪系统的设备和技术。 正在进行校准的投影仪系统耦合到计算设备和耦合到目标结构的自动定位平台。 当目标结构处于多个可重复姿态时，计算设备使用由投影仪投影的一个或多个图案的校准相机获取图像到目标结构上。 从这些获取的图像可以确定固有的投影仪参数。 一旦确定，参数可以用于校正由投影仪产生的或由照相机获取的包括投影图案或其部分的图像。
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公开(公告)号：US07034900B2
公开(公告)日：2006-04-25
申请号：US10029665
申请日：2001-12-21
Applicant: Kazuhiko Yoshizawa , Toshimitsu Watanabe , Kuninori Matsumi
Inventor： Kazuhiko Yoshizawa , Toshimitsu Watanabe , Kuninori Matsumi
CPC classification number: H04N9/28
Abstract: In a color display device, apparatus and method are provided to produce a convergence correction signal based on digital convergence correction values. The data rate by which the data is supplied to the apparatus varies, depending on the area of the display corresponding to the digital convergence correction values being supplied.
Abstract translation: 在彩色显示装置中，提供装置和方法以产生基于数字收敛校正值的会聚校正信号。 数据被提供给设备的数据速率根据所提供的数字会聚校正值对应的显示区域而变化。
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公开(公告)号：US5945792A
公开(公告)日：1999-08-31
申请号：US880527
申请日：1997-06-23
Applicant: Karl Rudolf Koblitz
Inventor： Karl Rudolf Koblitz
Abstract: In a vertical sawtooth generator of a vertical deflection circuit, a first comparator generates an output signal when a retrace portion of a sawtooth signal is at a first magnitude to initiate a vertical trace portion of the sawtooth signal. An amplifier responsive to the sawtooth signal and to a reference signal generates a feedback current at a time that occurs between the center of vertical trace and the end of trace and away from the center of trace. The feedback current is determined in accordance with a difference between the sawtooth signal and the reference signal. The feedback current is coupled to a first capacitor to develop a gain control voltage. The control voltage is applied via a voltage-to-current converter to an integrating capacitor to develop in the integrating capacitor the trace portion of the sawtooth signal. The control voltage is initialized during a power start-up interval.
Abstract translation: 在垂直偏转电路的垂直锯齿波发生器中，当锯齿波信号的回扫部分处于第一幅度时，第一比较器产生输出信号以启动锯齿波信号的垂直轨迹部分。 响应于锯齿波信号和参考信号的放大器在垂直轨迹的中心和迹线的末端之间发生并且远离轨迹的中心产生反馈电流。 根据锯齿波信号和参考信号之间的差异来确定反馈电流。 反馈电流耦合到第一电容器以产生增益控制电压。 通过电压 - 电流转换器将控制电压施加到积分电容器，以在积分电容器中产生锯齿波信号的迹线部分。 在电源启动间隔期间初始化控制电压。
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4.发明授权Convergence error detecting apparatus capable of being applied to projection-type displays having different scanning frequencies 失效收敛误差检测装置能够应用于具有不同扫描频率的投影型显示器
公开(公告)号：US5532764A
公开(公告)日：1996-07-02
申请号：US213910
申请日：1994-03-15
Applicant: Yohichi Itaki
Inventor： Yohichi Itaki
Abstract: In a convergence error detecting apparatus for use in combination with a display system of a projection type which displays, onto a display panel, a projected image signal which has a first synchronization signal of a predetermined frequency, and for detecting a convergence error signal representative of a convergence error appearing on the projected image signal, image pickup device is operated by a second synchronization signal of a frequency different from the predetermined frequency, for picking up the projected image signal to produce a pickup image signal by the use of the second synchronization signal, and processing unit processes the pickup image signal to detect the convergence error and to produce a convergence error signal representative of the convergence error. The convergence error signal is supplied to the display system to remove the convergence error in the display system.
Abstract translation: 在与显示面板上显示具有预定频率的第一同步信号的投影图像信号并且用于检测代表预定频率的收敛误差信号的投影型显示系统结合使用的会聚误差检测装置中， 出现在投影图像信号上的会聚误差，图像拾取装置由与预定频率不同的频率的第二同步信号操作，用于拾取投影图像信号，以通过使用第二同步信号产生拍摄图像信号 并且处理单元处理拾取图像信号以检测会聚误差并产生表示收敛误差的收敛误差信号。 收敛误差信号被提供给显示系统以消除显示系统中的收敛误差。
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公开(公告)号：US5294987A
公开(公告)日：1994-03-15
申请号：US911648
申请日：1992-07-10
Applicant: Timothy W. Saeger , David J. Duffield
Inventor： Timothy W. Saeger , David J. Duffield
CPC classification number: H04N7/0122 , H04N3/227 , H04N3/24 , H04N5/45 , H04N5/775
Abstract: A television apparatus includes a display for a video signal representing a picture. The video signal has a vertical synchronizing component defining fields of horizontal lines which can have other than a standard number of horizontal lines per field under certain operating conditions. A counter measures the number of horizontal lines in each field. A panning circuit generates a vertical reset signal which is phase shifted by a selected number of horizontal lines relative to the vertical synchronizing component of the video signal for vertically panning the picture on the video display by the selected number of horizontal lines. The selected number of horizontal lines is adjusted responsive to the measured lengths of the fields to maintain the selected amount of vertical panning even under the certain operating conditions.
Abstract translation: 电视设备包括用于表示图像的视频信号的显示器。 视频信号具有垂直同步分量，其限定在某些操作条件下每场的标准数量的水平线以外的水平线的场。 一个计数器测量每个字段中的水平行数。 平移电路产生相对于视频信号的垂直同步分量相移所选数量的水平线的垂直复位信号，用于垂直平移视频显示器上的图像所选择的数量的水平线。 响应于所测量的场长度来调整所选数量的水平线，以便即使在某些操作条件下也能保持所选择的垂直平移量。
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Patent Agency Ranking
公开(公告)号：US5285282A
公开(公告)日：1994-02-08
申请号：US945641
申请日：1992-11-06
Applicant: Enrique R. Cavazos , Robert D. Altmanshofer
Inventor： Enrique R. Cavazos , Robert D. Altmanshofer
IPC: H04N5/46 , G06F3/00 , G06T3/40 , G09G5/00 , G09G5/14 , G09G5/377 , G09G5/391 , H04N3/223 , H04N3/227 , H04N3/27 , H04N5/073 , H04N5/14 , H04N5/262 , H04N5/265 , H04N5/44 , H04N5/45 , H04N7/00 , H04N7/01 , H04N7/015 , H04N7/26 , H04N9/64 , H04N11/06 , H04N11/20 , H04N11/24
CPC classification number: H04N9/641 , G06T3/0012 , G06T3/4007 , H04N19/90 , H04N3/223 , H04N3/227 , H04N3/27 , H04N5/2624 , H04N5/45 , H04N7/007 , H04N7/01 , H04N7/0105 , H04N7/0122 , H04N7/015 , H04N9/64
Abstract: A display system controls vertical zoom and panning. A video display has a first format display ratio. A circuit, for example one generating a raster, maps on the video display an adjustable picture display area represented in a video signal having a vertical synchronizing component. The picture represented in the video signal has a second format display ratio. A vertical height control circuit, for example one controlling the vertical height of the raster by controlling the vertical deflection current, selectively enlarges the picture display area relative to the video display. A panning control circuit adjusts in phase a vertical blanking interval relative to the vertical synchronizing component to control which portion of the enlarged picture area is displayed and which portion is not displayed. The format display ratios can be the same or different, for example 16.times.9 for the video display and 4.times.3 for the picture, in the latter case.
Abstract translation: PCT No.PCT / US91 / 03822 Sec。 371日期：1992年11月6日 102（e）日期1992年11月6日PCT 1991年5月30日提交。显示系统控制垂直放大和平移。 视频显示具有第一格式显示比率。 例如，生成光栅的电路在视频显示器上映射在具有垂直同步分量的视频信号中表示的可调节图像显示区域。 视频信号中表示的图像具有第二格式显示比。 例如通过控制垂直偏转电流来控制光栅垂直高度的垂直高度控制电路相对于视频显示器选择性地放大图像显示区域。 平移控制电路相对于垂直同步分量相位调整垂直消隐间隔，以控制显示放大图像区域的哪个部分并且不显示哪个部分。 格式显示比可以相同或不同，例如在视频显示中为16 * 9，在后一种情况下为4 * 3。
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公开(公告)号：US5264762A
公开(公告)日：1993-11-23
申请号：US911683
申请日：1992-07-10
Applicant: James A. Wilber
Inventor： James A. Wilber
Abstract: A first voltage-to-current converter responsive to a picture height adjustment control signal generates a first current in a capacitor for producing a trace portion of a sawtooth signal in the capacitor having a rate of change that is adjustable in accordance with an adjustment of the control signal. A second voltage-to-current converter responsive to the control signal generates a second current in a resistor for producing a third signal that is adjustable in accordance with the control signal. The sawtooth and third signals are coupled via a differential amplifier to a vertical deflection winding to produce a vertical deflection current in accordance with a difference between the sawtooth and third signals such that picture height adjustment does not affect vertical centering.
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8.发明授权Service adjustment arrangement for a sawtooth generator of a video display 失效视频显示器的SAWTOOTH发生器的维修调整装置
公开(公告)号：US5243263A
公开(公告)日：1993-09-07
申请号：US843061
申请日：1992-03-02
Applicant: Karl R. Koblitz , James A. Wilber , Enrique Rodriguez-Cavazos
Inventor： Karl R. Koblitz , James A. Wilber , Enrique Rodriguez-Cavazos
Abstract: In a vertical sawtooth generator of a D.C. coupled vertical deflection circuit, a vertical deflection amplifier generates a sawtooth signal. Magnitudes of the sawtooth signal in first and second instants of its trace period are determined in accordance with first and second D.C. signals, respectively. The first and second D.C. signals are adjusted during service to control the raster height and the raster centering such that while the raster height is adjusted, raster centering is not significantly affected, and vice versa.
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公开(公告)号：US5241834A
公开(公告)日：1993-09-07
申请号：US884084
申请日：1992-05-18
Applicant: Kenneth Gill
Inventor： Kenneth Gill
CPC classification number: F25B45/00 , H04N3/227 , F25B2345/002
Abstract: An apparatus adapted for recovering compressible refrigeration fluid from a refrigerator means and delivering the recovered fluid under high-pressure conditions along a line to a receptacle, in fluid communication and in sequence along the line. An accumulator means to which refrigeration fluid from the refrigerator means in gaseous form is drawn, a compressor to compress the refrigeration fluid from the accumulator and create a vacuum condition for drawing refrigeration fluid from the refrigerator means, and a condenser to liquify the refrigeration fluid for delivery to the receptacle, the improvement characterized by a secondary receptacle being provided, communicating with the line between the condenser and receptacle and with the line upstream of the accumulator, and a valve means in the line between the secondary receptacle and the compressor arranged, when the pressure in the secondary receptacle exceeds a predetermined value, so that the valve will open to allow some of the refrigeration fluid to flow back to the compressor for recondensation, to thereby lower the pressure in the receptacle.
Abstract translation: 一种适于从冰箱装置回收可压缩制冷流体并且将回收的流体在高压条件下沿着管线输送到容器的装置，其沿流体连通并且沿着该线顺序输送。 一个储存器装置，其中从冷藏装置的冷冻装置的气体形式被抽出，一个压缩机，用于压缩来自储存器的冷冻流体，并产生用于从冷藏装置中抽取冷冻流体的真空条件;以及冷凝器， 输送到容器，其特征在于提供了一个辅助容器，该二次容器与冷凝器和容器之间的管线与蓄能器上游的管路连通，并且在第二容器和压缩机之间的管路中设置有阀装置 次级容器中的压力超过预定值，使得阀打开以允许一些制冷流体回流到压缩机以用于再冷凝，从而降低容器中的压力。
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公开(公告)号：US5179321A
公开(公告)日：1993-01-12
申请号：US814894
申请日：1991-12-30
Applicant: Lawrence E. Smith , James A. Wilber
Inventor： Lawrence E. Smith , James A. Wilber
Abstract: Retrace pulses are integrated by an R-C network to produce a ramp signal. The resistive member of the R-C network is bypassed by a diode to provide rapid retrace at the conclusion of the ramp portion of the integrated signal. A voltage divider at the output of the integrator adjusts the DC level of the ramp signal without affecting the constant of integration of the R-C network.
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