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1. 发明申请

US20130162960A1 Image Display Device 审中-公开
标题翻译：图像显示设备
公开(公告)号：US20130162960A1
公开(公告)日：2013-06-27
申请号：US13821084
申请日：2011-08-31
申请人： Atsuhiko Chikaoka
发明人： Atsuhiko Chikaoka
IPC分类号： G02B27/48
CPC分类号： G02B27/48 , G02B26/101 , G02B26/123 , G02B27/102 , G02B27/104 , G09G3/02 , H04N9/3129 , H04N9/3164
摘要： Provided is an image display device which carries out bi-directional line sequence scanning, and which appropriately corrects positioning misalignment of projection spots while efficaciously minimizing speckle noise. A laser controller unit sets waveform patterns when scanning in the forward direction, reflecting waveform patterns (GPT, BPT) about the time axis. The laser controller unit further sets waveform patterns when scanning in the reverse direction, reflecting the waveform patterns when scanning in the forward direction about the time axis. Waveform patterns (RPT, GPT, BPT) comprise drive start timings and drive end timings of laser sources within a pixel display period. The off period from the start timing of the pixel display period to the drive start timing and the off period from the drive end timing to the end timing of the pixel display period are set to be asymmetrical about the time axis.
摘要翻译：提供了一种执行双向线序列扫描的图像显示装置，其适当地校正投影点的定位偏移，同时有效地最小化斑点噪声。激光控制器单元在正向扫描时设置波形图案，反映关于时间轴的波形图案（GPT，BPT）。当沿反方向扫描时，激光控制单元进一步设置波形图案，当沿着时间轴向前扫描时反映波形图案。波形图案（RPT，GPT，BPT）包括像素显示周期内的激光源的驱动启动定时和驱动结束定时。从像素显示周期的开始定时到驱动开始定时的关闭时段和从像素显示周期的驱动结束定时到结束定时的关闭时段被设置为关于时间轴不对称。

2. 发明授权

US08123367B2 Image display apparatus and method for displaying image using laser light emission control 有权
标题翻译：使用激光发光控制显示图像的图像显示装置和方法
公开(公告)号：US08123367B2
公开(公告)日：2012-02-28
申请号：US12269524
申请日：2008-11-12
申请人： Kenji Nagashima , Atsuhiko Chikaoka , Seiji Takemoto , Hiroki Matsubara
发明人： Kenji Nagashima , Atsuhiko Chikaoka , Seiji Takemoto , Hiroki Matsubara
IPC分类号： G03B21/28 , G03B21/20
CPC分类号： H04N9/3155 , H04N9/3129 , H04N9/3194
摘要： A projector that can prevent laser light from entering eyes is provided. A process that controls the projector includes the steps of detecting turning-on of power to the projector; detecting an input for adjusting the reflection direction of a two-axis galvanometer mirror; sending an instruction to reduce output from respective lasers, to an FPGA; setting signal values of the lasers respectively controlled by laser control circuits, to small values; determining whether a certain period of time has elapsed since an operation input is no longer performed on an operation panel; standing by the process for a certain period of time when the certain period of time has not elapsed since an operation input is no longer performed; and returning the signal values to a normal level when the certain period of time has elapsed since an operation input is no longer performed.
摘要翻译：提供了可以防止激光进入眼睛的投影仪。控制投影机的过程包括检测投影机电源的接通的步骤; 检测用于调节双轴电流计反射镜的反射方向的输入; 发送一个指令，减少从各个激光器到FPGA的输出; 将由激光控制电路分别控制的激光器的信号值设置为小的值; 确定在操作面板上不再执行操作输入是否经过了一段时间; 在不再执行操作输入的情况下，经过一定时间段的时间过了一段时间; 并且在不再执行操作输入的经过一段时间后将信号值返回到正常水平。

3. 发明授权

US08064698B2 Fixed form image reading apparatus and fixed form image reading method using the same 有权
标题翻译：固定形式的图像读取装置和固定形式的图像读取方法
公开(公告)号：US08064698B2
公开(公告)日：2011-11-22
申请号：US11978603
申请日：2007-10-30
申请人： Atsuhiko Chikaoka , Tetsuya Shihara
发明人： Atsuhiko Chikaoka , Tetsuya Shihara
IPC分类号： G06K9/00 , G06K7/10
CPC分类号： H04N5/365 , G06K7/10722 , G06K7/10732 , G06K7/10851 , G06T5/009
摘要： An fixed form image reading apparatus includes an imaging portion for taking an image of a fixed form image formed in accordance with a predetermined rule so as to deliver image data, a luminance detecting portion that detects an accumulated value of luminance of a plurality of predetermined areas in the fixed form image as reference luminance data, an interpolation coefficient generating portion that generates an interpolation coefficient for performing interpolation so that luminance of the image data of the fixed form image becomes a predetermined level by using the reference luminance data, and a luminance correcting portion that corrects luminance of the image data of the fixed form image based on the interpolation coefficient.
摘要翻译：一种固定形式的图像读取装置包括：成像部分，用于拍摄根据预定规则形成的固定形式图像的图像以便传送图像数据;亮度检测部分，其检测多个预定区域的亮度的累积值在作为参考亮度数据的固定形式图像中，内插系数生成部分，生成用于进行插值的内插系数，使得固定形式图像的图像数据的亮度通过使用参考亮度数据变为预定水平，以及亮度校正基于插补系数校正固定形式图像的图像数据的亮度的部分。

4. 发明申请

US20100265278A1 IMAGE DISPLAY APPARATUS AND METHOD FOR CONTROLLING IMAGE DISPLAY APPARATUS 审中-公开
标题翻译：图像显示装置和控制图像显示装置的方法
公开(公告)号：US20100265278A1
公开(公告)日：2010-10-21
申请号：US12762716
申请日：2010-04-19
申请人： Ken Nishioka , Kenji Nagashima , Atsuya Hirano , Atsuhiko Chikaoka
发明人： Ken Nishioka , Kenji Nagashima , Atsuya Hirano , Atsuhiko Chikaoka
IPC分类号： G09G5/10
CPC分类号： H04N9/3135 , H01S5/042 , H04N9/3155 , H04N9/3182
摘要： An image display apparatus wherein reduction in contrast or resolution is prevented is provided. A laser projector as an embodiment of the image display apparatus includes a memory storing a threshold value predetermined for changing a driving mode of a laser light source, a calculator for calculating an optical power level for projecting an image, a driving-mode selector selecting a mode for driving the laser light source, a driving controller for sending a signal to the laser light source in accordance with a selected driving mode, and a laser emitter. The laser projector operates at least at a bias current value Ib or more. In this case, when the optical power level is lower than or equal to a predetermined threshold value TH, the laser projector emits pulsed light. When the optical power level based on a video signal exceeds threshold value TH, the laser projector changes the driving mode of laser light emission from pulsed light emission to DC light emission, to supply a current higher than or equal to bias current value Ib to each laser light source.
摘要翻译：提供了防止对比度或分辨率降低的图像显示装置。作为图像显示装置的实施例的激光投影仪包括存储预定用于改变激光光源的驱动模式的阈值的存储器，用于计算用于投影图像的光功率电平的计算器，驱动模式选择器选择用于驱动激光源的模式，用于根据选择的驱动模式向激光光源发送信号的驱动控制器和激光发射器。激光投影仪至少工作在偏置电流值Ib或更大。在这种情况下，当光功率水平低于或等于预定阈值TH时，激光投影仪发射脉冲光。当基于视频信号的光功率电平超过阈值TH时，激光投影仪将激光发射的驱动模式从脉冲发光改变为DC发光，以将电流高于或等于偏置电流值Ib提供给每个激光光源。

5. 发明申请

US20090122271A1 IMAGE DISPLAY APPARATUS 有权
标题翻译：图像显示设备
公开(公告)号：US20090122271A1
公开(公告)日：2009-05-14
申请号：US12267351
申请日：2008-11-07
申请人： Kenji Nagashima , Atsuhiko Chikaoka , Seiji Takemoto , Hiroki Matsubara
发明人： Kenji Nagashima , Atsuhiko Chikaoka , Seiji Takemoto , Hiroki Matsubara
IPC分类号： G03B21/10
CPC分类号： H04N9/3164 , G03B21/10 , G03B21/28 , G03B21/58 , G03B21/62 , H04N9/3129 , H04N9/3173 , H04N9/3194
摘要： An image display apparatus is provided that allows a user to check image content even in a place where there is no projection screen. A projector that is one mode of the image display apparatus includes a casing, a projection aperture provided in the casing, and an internal projection mirror and a built-in screen that are provided in a casing. When the projector is being folded, laser light emitted from the projection aperture is reflected by the internal projection mirror. The reflected light is projected onto the built-in screen, whereby an image is displayed.
摘要翻译：提供一种图像显示装置，其允许用户即使在没有投影屏幕的地方也检查图像内容。作为图像显示装置的一种模式的投影仪包括壳体，设置在壳体中的突起孔以及设置在壳体中的内部投影镜和内置屏幕。当投影机被折叠时，从投影孔射出的激光被内部投影镜反射。反射光投射到内置屏幕上，从而显示图像。

6. 发明申请

US20080107359A1 Fixed form image reading apparatus and fixed form image reading method using the same 有权
标题翻译：固定形式的图像读取装置和固定形式的图像读取方法
公开(公告)号：US20080107359A1
公开(公告)日：2008-05-08
申请号：US11978603
申请日：2007-10-30
申请人： Atsuhiko Chikaoka , Tetsuya Shihara
发明人： Atsuhiko Chikaoka , Tetsuya Shihara
IPC分类号： G06K9/20
CPC分类号： H04N5/365 , G06K7/10722 , G06K7/10732 , G06K7/10851 , G06T5/009
摘要： An fixed form image reading apparatus includes an imaging portion for taking an image of a fixed form image formed in accordance with a predetermined rule so as to deliver image data, a luminance detecting portion that detects an accumulated value of luminance of a plurality of predetermined areas in the fixed form image as reference luminance data, an interpolation coefficient generating portion that generates an interpolation coefficient for performing interpolation so that luminance of the image data of the fixed form image becomes a predetermined level by using the reference luminance data, and a luminance correcting portion that corrects luminance of the image data of the fixed form image based on the interpolation coefficient.
摘要翻译：一种固定形式的图像读取装置包括：成像部分，用于拍摄根据预定规则形成的固定形式图像的图像以便传送图像数据;亮度检测部分，其检测多个预定区域的亮度的累积值在作为参考亮度数据的固定形式图像中，内插系数生成部分，生成用于进行插值的内插系数，使得固定形式图像的图像数据的亮度通过使用参考亮度数据变为预定水平，以及亮度校正基于插补系数校正固定形式图像的图像数据的亮度的部分。

7. 发明申请

US20080089201A1 Optical disc apparatus and data complementation method 有权
标题翻译：光盘装置和数据互补方法
公开(公告)号：US20080089201A1
公开(公告)日：2008-04-17
申请号：US11902954
申请日：2007-09-26
申请人： Atsuhiko Chikaoka , Tetsuya Shihara
发明人： Atsuhiko Chikaoka , Tetsuya Shihara
IPC分类号： G11B7/00 , G11B20/18
CPC分类号： G11B20/10 , G06F11/006 , G06F11/1402 , G11B7/005 , G11B20/18 , G11B20/1883 , G11B27/11 , G11B27/36 , G11B2220/20
摘要： A data complementation method including a defective-data confirmation step of confirming if there is address information of defective data, a complementation-data confirmation step of confirming if complementation data is recorded, a complementation-data transmission request step of requesting a recovery server to transmit the complementation data, a complementation-data acquisition step of acquiring the complementation data through a communication network, and a complementation-data record step of recording the complementation data.
摘要翻译：一种数据互补方法，包括：确认是否存在有缺陷数据的地址信息的缺陷数据确认步骤，确认补充数据是否被记录的互补数据确认步骤;补充数据传输请求步骤，请求恢复服务器发送互补数据，通过通信网络获取互补数据的互补数据获取步骤，以及记录互补数据的互补数据记录步骤。

8. 发明授权

US09791711B2 Image display device 有权
公开(公告)号：US09791711B2
公开(公告)日：2017-10-17
申请号：US13811476
申请日：2011-07-11
申请人： Ken Nishioka , Kenji Nagashima , Atsuya Hirano , Atsuhiko Chikaoka
发明人： Ken Nishioka , Kenji Nagashima , Atsuya Hirano , Atsuhiko Chikaoka
IPC分类号： G02B27/48 , G03B21/20 , G03B33/06 , G03B33/12 , H04N9/31 , G09G3/02 , H01S5/00 , H01S5/40
CPC分类号： G02B27/48 , G03B21/2033 , G03B33/06 , G03B33/12 , G09G3/02 , G09G2360/145 , H01S5/005 , H01S5/4093 , H04N9/3129 , H04N9/3167
摘要： To prevent effectively the flickering of an image due to the switching of a polarization direction while reducing speckle noise. A polarization switching unit is provided in an optical path of laser light to a projection surface A and periodically switches a polarization direction of the laser light emitted therefrom between p and S polarization. A laser control unit controls laser light sources in synchronization with the switching by the polarization switching unit and determines a driving current corresponding to a grayscale to be displayed on the basis of driving current characteristics for P polarization when the polarization direction of the laser light is the P polarization. In addition, the laser control unit determines the driving current corresponding to the grayscale to be displayed on the basis of the driving current characteristics for P polarization when the polarization direction of the laser light is the S polarization.

9. 发明授权

US09298013B2 Image display device 有权
标题翻译：图像显示装置
公开(公告)号：US09298013B2
公开(公告)日：2016-03-29
申请号：US13883035
申请日：2011-11-01
申请人： Atsuhiko Chikaoka
发明人： Atsuhiko Chikaoka
IPC分类号： G03B21/20 , G02B27/48 , G09G3/02 , H04N9/31
CPC分类号： G09G3/02 , G02B27/48 , H04N9/3129 , H04N9/3135
摘要： The image display device resolves inconsistency in the brightness of the image while effectively reducing local speckle noise that remains due to the laser scanning of which the scanning speed fluctuates. A waveform pattern (PT2) that includes an on period and an off period within the pixel displaying period (T2) is selected for the center pixel (P512). A waveform pattern (PT1) that includes an on period and an off period within the pixel displaying period (T1) that is longer than the pixel displaying period (T2) is selected for the side pixel (P1) or (P1023) that is scanned at a scanning speed slower than that for the center pixel (P512). Here, the on period in the waveform pattern (PT1) is segmented more than the on period in the waveform pattern (PT1), and the time ratio of the on period accounting for the waveform pattern (PT1) is smaller than the time ratio of the on period accounting for the waveform pattern (PT2).
摘要翻译：图像显示装置解决了图像的亮度不一致，同时有效地减少了由于扫描速度波动的激光扫描而保留的局部散斑噪声。对于中心像素（P512）选择包括像素显示周期（T2）内的接通周期和截止周期的波形图案（PT2）。对于扫描的侧像素（P1）或（P1023），选择包括比像素显示周期（T2）长的像素显示周期（T1）内的接通周期和截止周期的波形图案（PT1）扫描速度比中心像素的扫描速度慢（P512）。这里，波形图案（PT1）中的接通周期比波形图案（PT1）中的导通周期多，并且波形图案（PT1）的导通周期的时间比例小于导通时间占波形图案（PT2）。

10. 发明授权

US09075246B2 Image display device having laser light scanning with a variation in scanning speed 有权
标题翻译：具有扫描速度变化的激光扫描的图像显示装置
公开(公告)号：US09075246B2
公开(公告)日：2015-07-07
申请号：US13811576
申请日：2011-07-11
申请人： Atsuhiko Chikaoka , Kenji Nagashima
发明人： Atsuhiko Chikaoka , Kenji Nagashima
IPC分类号： G03B21/28 , H04N9/12 , H04N3/02 , G02B26/10 , G02B27/48 , G02B27/18 , H04N1/40 , G03B21/14 , G03B21/20 , H04N9/31
CPC分类号： G02B27/48 , G02B26/101 , G02B26/105 , G02B27/18 , G03B21/14 , G03B21/2033 , H04N1/40037 , H04N9/3129
摘要： Techniques capable of effectively reducing local speckle noise caused by scanning with laser light involving a variation in scanning speed and improving the overall quality of an image are provided. In some examples, a laser light source emits laser light with an output level corresponding to a display grayscale of a pixel according to a predetermined waveform pattern within a pixel display period which is set to increase as a scanning speed is reduced. The waveform pattern is set such that a unique relaxation oscillation of the laser light source increases as the scanning speed is reduced. A scanning mirror reflects the laser light emitted from the laser light source in a predetermined scanning order according to its deflection angle so as to be projected onto a projection surface.
摘要翻译：提供了能够有效地减少由涉及扫描速度变化并提高图像整体质量的激光扫描引起的局部斑点噪声的技术。在一些示例中，激光光源根据设定为随扫描速度降低而增加的像素显示周期内的预定波形图案发射具有与像素的显示灰度对应的输出电平的激光。波形图案被设置为使得激光光源的唯一的弛豫振荡随着扫描速度的降低而增加。扫描镜根据其偏转角以预定的扫描顺序反射从激光光源发射的激光，以便投影到投影表面上。

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