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公开(公告)号：US20160103324A1
公开(公告)日：2016-04-14
申请号：US14893278
申请日：2014-04-25
CPC分类号： G02B27/0172 , G02B26/101 , G02B26/105 , G02B27/0101 , G02B2027/011 , G02B2027/0178 , G02C11/10 , G09G3/025 , G09G5/10 , H04N3/30 , H04N5/66 , H04N9/3179
摘要： The present invention is an image projection device that includes: a light source 12 that emits a laser beam 34; a scanning mirror 14 that two-dimensionally scans the laser beam 34 emitted from the light source 12; and a projection mirror 24 that projects scanned light onto a retina 26 of an eyeball 22 of a user to project an image onto the retina 26, the scanned light being composed of the laser beam 34 that has been scanned by the scanning mirror 14, wherein the laser beam 34 emitted from the light source 12 is scanned by using a part of an operating range of the scanning mirror 14.
摘要翻译： 本发明是一种图像投影装置，包括：发射激光束34的光源12; 对从光源12发射的激光束34进行二维扫描的扫描镜14; 以及投影镜24，其将扫描光投影到用户的眼球22的视网膜26上以将图像投影到视网膜26上，扫描光由已被扫描反射镜14扫描的激光束34组成，其中 通过使用扫描反射镜14的工作范围的一部分来扫描从光源12发射的激光束34。
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公开(公告)号：US09019176B2
公开(公告)日：2015-04-28
申请号：US13811408
申请日：2010-07-22
申请人： Yoshihiro Hanada
发明人： Yoshihiro Hanada
CPC分类号： G09G1/10 , G09G3/025 , G09G3/346 , G09G5/10 , G09G2310/02 , G09G2310/0283 , G09G2320/041 , H04N3/08 , H04N3/30
摘要： An image forming apparatus that displays an image, includes: a scanning section that scans light from a light source in a main scanning direction and a sub-scanning direction orthogonal to the main scanning direction, as drawing sine waves; a detecting part that detects a change in a position of the scanning part in the main scanning direction and a change in a position of the scanning part in the sub-scanning direction; a phase difference comparator that detects a phase difference and a frequency ratio between the main scanning direction and the sub-scanning direction, based on the change in the position of the main scanning direction and the change in the position of the sub-scanning direction; and an image data generation part that estimates a scanning trajectory of the scanning part based on the phase difference and the frequency ratio, and generates pixel data corresponding to the scanning trajectory.
摘要翻译： 一种显示图像的图像形成装置，包括：扫描部，其扫描来自与主扫描方向正交的主扫描方向和副扫描方向的光源的光作为绘制正弦波; 检测部，其检测扫描部在主扫描方向上的位置的变化以及扫描部在副扫描方向上的位置的变化; 基于主扫描方向的位置变化和副扫描方向的位置的变化来检测主扫描方向和副扫描方向之间的相位差和频率比的相位差比较器; 以及图像数据生成部，其基于相位差和频率比来估计扫描部的扫描轨迹，并生成与扫描轨迹对应的像素数据。
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公开(公告)号：US20110164831A1
公开(公告)日：2011-07-07
申请号：US12983643
申请日：2011-01-03
申请人： Eric Van Reeth , Pascal Bertolino , Marina Nicolas
发明人： Eric Van Reeth , Pascal Bertolino , Marina Nicolas
IPC分类号： G06K9/36
CPC分类号： H04N3/30 , G06K9/74 , G06T7/13 , G06T7/42 , G06T7/73 , G06T2207/20021 , G06T2207/20064
摘要： A method for detecting orientation of the contours in an image, performs an initial transformation of the image using a non-decimated multi-resolution transform, segments the image into a plurality of blocks, determines the optimal resolution for each block, and detects the predominant direction of contour for each of the blocks.
摘要翻译： 一种用于检测图像中轮廓的取向的方法，使用非抽取的多分辨率变换来执行图像的初始变换，将图像分割成多个块，确定每个块的最佳分辨率，并且检测主要 每个块的轮廓方向。
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公开(公告)号：US20070165292A1
公开(公告)日：2007-07-19
申请号：US11592266
申请日：2006-11-03
申请人： Byeung-leul Lee
发明人： Byeung-leul Lee
IPC分类号： G02B26/08
CPC分类号： G02B26/105 , H04N3/08 , H04N3/30
摘要： An apparatus and method are provided for displaying an image by raster scanning using a mirror. The apparatus includes a mirror control unit that controls a vertical motion of the mirror to be a triangle wave motion, and a scanning unit that repeatedly performs a forward scan and a reverse scan over the mirror in an orthogonal direction. The apparatus can reduce ringing by controlling the vertical motion of the mirror to be an isosceles triangle wave motion and increasing a sawtooth flyback time to about 50%. Also, since the reverse scan is performed during flyback after the forward scan is performed, the apparatus can compensate for a reduction in screen brightness, which is caused by the increase of the sawtooth flyback time to about 50%.
摘要翻译： 提供了一种用于通过使用镜子的光栅扫描来显示图像的装置和方法。 该装置包括将镜子的垂直运动控制为三角波运动的反射镜控制单元和在正交方向上重复地在镜子上进行正向扫描和反向扫描的扫描单元。 该装置可以通过将镜的垂直运动控制为等腰三角波运动并将锯齿回扫时间增加到约50％来减少振铃。 此外，由于在进行正向扫描之后的反激扫描期间执行反向扫描，所以该装置可以补偿由锯齿回扫时间的增加引起的屏幕亮度的降低到约50％。
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5.发明授权Video display apparatus with scan conversion and reversion and a video display method using scan conversion and reversion 失效具有扫描转换和反转的视频显示装置和使用扫描转换和反转的视频显示方法公开(公告)号：US06429899B1
公开(公告)日：2002-08-06
申请号：US09351847
申请日：1999-07-13
申请人： Yutaka Nio , Naoji Okumura , Katsumi Terai , Kazuto Tanaka , Satoshi Okamoto , Masaaki Fujita , Minoru Miyata
发明人： Yutaka Nio , Naoji Okumura , Katsumi Terai , Kazuto Tanaka , Satoshi Okamoto , Masaaki Fujita , Minoru Miyata
IPC分类号： H04N1100
CPC分类号： G09G1/165 , G09G1/167 , G09G2310/0229 , H04N3/30 , H04N7/01 , H04N7/012 , H04N7/0125
摘要： A video signal of an interlaced scanning system having 525 scanning lines and a vertical scanning frequency of 60 Hz is converted to a video signal having 1050 scanning lines and a vertical scanning frequency of 120 Hz, for displaying an image by bidirectional scanning. A vertical synchronizing signal is subjected to offset processing by a ¼ horizontal scanning period when an odd field is started, thereby keeping interlaced relation between odd and even fields. The vertical synchronizing signal is subjected to offset processing by a ½ horizontal scanning period every frame, so that the scanning direction for each scanning line is reversed every frame.
摘要翻译： 具有525扫描线和60Hz的垂直扫描频率的隔行扫描系统的视频信号被转换为具有1050扫描线和120Hz的垂直扫描频率的视频信号，用于通过双向扫描显示图像。 当奇数场开始时，垂直同步信号经过1/4水平扫描周期的偏移处理，从而保持奇数和偶数场之间的交错关系。 垂直同步信号每帧进行1/2水平扫描周期的偏移处理，使得每帧扫描线的扫描方向反转。
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公开(公告)号：US5825039A
公开(公告)日：1998-10-20
申请号：US756360
申请日：1996-11-27
申请人： John George Hartley
发明人： John George Hartley
IPC分类号： H01J37/147 , H04N3/30 , H01J37/304
CPC分类号： H04N3/30 , H01J37/1474 , H01J2237/30488
摘要： A digitally stepped deflection raster system and a method of operation thereof are disclosed. The digitally stepped deflection raster system operates to provide horizontal and vertical scans of an area of interest. The total length of each of the horizontal and vertical scans is proportioned into segments to provide non-continuous scanning signals that are arranged into predetermined raster patterns each of which reduces the deflection placement error of the digitally stepped deflection raster system.
摘要翻译： 公开了一种数字阶梯偏转光栅系统及其操作方法。 数字阶梯偏转光栅系统用于提供感兴趣区域的水平和垂直扫描。 每个水平扫描和垂直扫描的总长度被分成段，以提供非连续的扫描信号，其被布置成预定的光栅图案，每个扫描信号减少数字阶梯偏转光栅系统的偏转放置误差。
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公开(公告)号：US5652482A
公开(公告)日：1997-07-29
申请号：US714034
申请日：1996-09-12
申请人： Luc Tripod
发明人： Luc Tripod
摘要： A symmetrical square wave, having zero average value, is coupled to the input of a horizontal deflection yoke through an S-shaping capacitance. A negative resistance coupled to the output of the yoke has a negative resistance value which compensates for resistive losses in the yoke. A yoke current generated in the yoke will be a symmetrical triangular waveform. A first control loop adjusts the negative resistance value to assure successive zero value crossings of the yoke current are coincident in time with each center of successive horizontal scan lines. A second control loop adjusts the square wave to assure successive level transitions of the square wave are coincident in time with successive changes of scanning direction.
摘要翻译： 具有零平均值的对称方波通过S整形电容耦合到水平偏转线圈的输入端。 耦合到磁轭的输出的负电阻具有补偿磁轭中的电阻损耗的负电阻值。 在轭中产生的轭电流将是对称的三角波形。 第一控制回路调节负电阻值，以确保轭电流的连续零值交叉与时间上的连续水平扫描线的每个中心重合。 第二个控制环路调整方波，以确保方波的连续电平转换在时间上与扫描方向的连续变化一致。
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公开(公告)号：US5537149A
公开(公告)日：1996-07-16
申请号：US49536
申请日：1993-04-20
申请人： Shinji Teraoka , Yasuhiro Sato
发明人： Shinji Teraoka , Yasuhiro Sato
CPC分类号： G06T3/0012 , H04N3/30 , H04N7/0122 , Y10S348/913
摘要： A display device having a display screen of 16:9 aspect ratio for displaying fully a video image of 4:3 aspect ratio without leaving a blank space and a display device having a display screen of 4:3 aspect ratio for displaying fully a video image of 16:9 aspect ratio without leaving a blank space are disclosed. The former device includes at least one of the first circuitry for non-linearly expanding a horizontal display scale of the 4:3 image being fully displayed to fill up the 16:9 screen, in right and left portions of the image relative to the horizontal center of the image as such that a rate of non-linear expansion is increased as a horizontal position within the image becomes distant from a horizontal center of the image, and second circuitry for non-linearly compressing a vertical display scale of the 4:3 image being fully displayed to fill up the 16:9 screen, in upper and lower portions of the image relative to the vertical center of the image as such that a rate of non-linear compression is increased as a vertical position within the image becomes distant from a vertical center of the image. In the latter device, the horizontal scale is non-linearly compressed, and the vertical scale is non-linearly expanded.
摘要翻译： 一种显示装置，具有16：9宽高比的显示屏幕，用于完全显示4：3宽高比的视频图像而不留空格;以及具有4：3宽高比的显示屏幕的显示装置，用于完全显示视频图像 的宽高比为16：9而不留空白。 前一个装置包括第一电路中的至少一个，用于非线性地扩展4：3图像的水平显示比例被完全显示，以填充图像相对于水平的图像的左右部分中的16:9屏幕 图像的中心使得当图像中的水平位置变得远离图像的水平中心时，非线性扩展的速率增加，并且用于非线性压缩4：3的垂直显示比例的第二电路 图像被完全显示以在图像的上部和下部相对于图像的垂直中心填充16：9屏幕，使得随着图像内的垂直位置变得远离，非线性压缩率增加 从图像的垂直中心。 在后一种装置中，水平刻度是非线性压缩的，垂直刻度是非线性的。
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公开(公告)号：US5329367A
公开(公告)日：1994-07-12
申请号：US980811
申请日：1992-11-24
摘要： In a horizontal deflection system, an nf.sub.H timing signal is generated synchronously with an f.sub.H horizontal synchronizing component in a video signal, where nf.sub.H is a higher frequency than f.sub.H. A first circuit is responsive to the nf.sub.H timing signal for generating an nf.sub.H scan synchronizing signal synchronously with the nfH timing signal. A horizontal deflection stage is operable at nf.sub.H and responsive to the nf.sub.H scan synchronizing signal. A second circuit is responsive to the same nf.sub.H timing signal for generating horizontal blanking pulses. The nf.sub.H timing signal can be generated by a first phase locked loop and a frequency divider. The first circuit responsive to the nf.sub.H timing signal can comprise a second phase locked loop. The second circuit responsive to the nfH timing signal can comprise a driver/inverter. The horizontal blanking pulses are combined with vertical blanking pulses to form a composite blanking signal.
摘要翻译： 在水平偏转系统中，nfH定时信号与视频信号中的fH水平同步分量同步产生，其中nfH比fH高。 第一电路响应于nfH定时信号，用于与nfH定时信号同步地产生nfH扫描同步信号。 水平偏转级在nfH处可操作并响应于nfH扫描同步信号。 第二电路响应相同的nfH定时信号以产生水平消隐脉冲。 nfH定时信号可以由第一锁相环和分频器产生。 响应于nfH定时信号的第一电路可以包括第二锁相环。 响应于nfH定时信号的第二电路可以包括驱动器/反相器。 水平消隐脉冲与垂直消隐脉冲组合形成复合消隐信号。
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公开(公告)号：US5315310A
公开(公告)日：1994-05-24
申请号：US985772
申请日：1992-12-04
申请人： David J. Eagle , Andrew J. Morrish
发明人： David J. Eagle , Andrew J. Morrish
摘要： Cathode ray tube display apparatus comprises a cathode ray tube display screen for displaying successive frames of a non-interlaced video image in response to excitation by at least one raster-scanned electron beam. A line timebase circuit sequentially addresses each electron beam to successive pixels on the screen in a line of a raster in response to a line timebase sync signal. A frame timebase circuit sequentially addresses each electron beam to successive lines of the raster in response to a frame timebase sync signal. The frame timebase circuit comprises means for offsetting successive frames of the video image in a direction transverse of the lines of the raster by a distance less than the spacing of adjacent lines of the raster. Gaps between adjacent pixels on successive lines of the raster are made invisible to the viewer because the persistence of viewer's eye effectively integrates the image content of successive frames. Also, because the successive frames have the same image content, there is no low-frequency component in the image spectrum below the frame timebase frequency. Therefore, the displayed image is free from objectionable flicker.
摘要翻译： 阴极射线管显示装置包括阴极射线管显示屏，用于响应于至少一个光栅扫描电子束的激发而显示非间行视频图像的连续帧。 线路时基电路响应于线路时基同步信号，顺序地将每个电子束寻址到栅格中的屏幕上的连续像素。 帧时基电路响应于帧时基同步信号，顺序地将每个电子束寻址到光栅的连续行。 帧时基电路包括用于在垂直于光栅行的方向上将视频图像的连续帧偏移小于光栅的相邻行的间距的装置。 光栅的连续行上的相邻像素之间的间隙对于观看者是不可见的，因为观看者眼睛的持续性有效地将连续帧的图像内容整合。 另外，由于连续帧具有相同的图像内容，所以在帧时基频率以下的图像频谱中不存在低频分量。 因此，显示的图像没有令人反感的闪烁。
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