公开(公告)号：US06390626B1

公开(公告)日：2002-05-21

申请号：US08730818

申请日：1996-10-17

申请人： Richard M. Knox

发明人： Richard M. Knox

IPC分类号： G03B2114

摘要： A light projection engine uses a wide angle reflecting polarizer material (preferably 3M DBEF brand double brightness enhancement filter) as a polarizing beamsplitter to direct polarized light to beam splitter/combiner (such as an X-cube dichroic reflector). The beam splitter/combiner then splits the directed polarized light into separate reflective LCD panels acting as light valves. The LCD panels alter the polarity of the incident light from 0 degrees up to 90 degrees to control which light is passes from the wide angle reflecting polarizer back towards the light source and which light has the necessary polarization change to allow it to pass from the wide angle reflecting polarizer to the lens system. After reflecting off of the LCD panels, the light goes back through the X-cube dichroic reflector, where it is recombined. The recombined light which is of a first polarity is transmitted from the reflecting polarizer to the lens system, while the recombined light which is of a second polarity is transmitted to the light source. The LCDs are preferably analog polarizing LCDs.

公开(公告)号：US06323854B1

公开(公告)日：2001-11-27

申请号：US09183916

申请日：1998-10-31

申请人： Richard M. Knox ,  Mark W. Welker

发明人： Richard M. Knox ,  Mark W. Welker

IPC分类号： G06T1700

CPC分类号： G09G5/006 ,  G06F3/1431 ,  G06F3/1446 ,  G06F3/1462 ,  G06T15/20 ,  G09G2360/18 ,  G09G2370/025 ,  H04N9/12 ,  H04N9/3147

摘要： A tiled monitor system is implemented with a single controller that does not provide standard video signals to each of the monitors. Instead, only the changed portions of an image to be displayed are sent to the monitors, which internally maintain a video frame buffer for displaying using a display engine. Preferably, a high speed serial link is used between the monitors and the video controller for transmitting this information.

摘要翻译： 使用不向每个监视器提供标准视频信号的单个控制器实现平铺监视器系统。 相反，只有要显示的图像的改变的部分被发送到监视器，监视器在内部维护用于使用显示引擎进行显示的视频帧缓冲器。 优选地，在监视器和视频控制器之间使用高速串行链路来发送该信息。

公开(公告)号：US06181386B2

公开(公告)日：2001-01-30

申请号：US08767967

申请日：1996-12-17

申请人： Richard M. Knox

发明人： Richard M. Knox

IPC分类号： H04N574

CPC分类号： H04N9/3141 ,  G03B21/10 ,  G03B21/606 ,  G06F1/1601 ,  G09F2013/0422 ,  G09F2013/145 ,  H04N5/7408 ,  H04N9/3147

摘要： An “extra-folded” projection display system includes a selectively reflective material (e.g., a linear reflecting polarizer) placed immediately behind the system's imaging screen. The display system includes an image projector that projects an image beam containing light of a predetermined linear polarization toward the imaging screen. The linear reflecting polarizer reflects the light in the image beam away from the screen. The reflected image beam then encounters a ¼-wavelength achromatic retarder which converts the linear polarization to circular polarization. The image beam next hits a mirror that reflects the light back through the ¼-wavelength achromatic retarder, which converts the circular polarization back to linear polarization, with the polarization director rotated 90° from the original polarization director. The linear reflecting polarizer then allows the light to pass through to the image screen.

摘要翻译： “折叠式”投影显示系统包括紧靠系统成像屏幕后方的选择性反射材料（例如，线性反射偏振器）。 显示系统包括将包含预定线性偏振光的图像束投影到成像屏幕的图像投影仪。 线性反射偏振器将图像束中的光反射离开屏幕。 反射的图像束然后遇到将线偏振转换为圆偏振的1/4波长消色差延迟器。 图像光束接下来将通过1/4波长消色差延迟器反射光的反射镜，其将圆偏振转换回线性偏振，偏振光导向器与原始偏振光导向器旋转90°。 线性反射偏振器然后允许光通过到图像屏幕。

公开(公告)号：US5786810A

公开(公告)日：1998-07-28

申请号：US651881

申请日：1996-06-04

申请人： Richard M. Knox ,  John R. Masters

发明人： Richard M. Knox ,  John R. Masters

IPC分类号： G06F3/02 ,  G06F3/033 ,  G06F3/042 ,  G06F3/023

CPC分类号： G06F3/0423 ,  G06F3/0213

摘要： A method of determining an object's position and associated apparatus provides positional information in a form that may be conveniently communicated to a computer to calculate the object's position. In a preferred embodiment, representatively incorporated in a computer keyboard, a method of determining an object's position includes forming an optical grid of reflected beacons and detecting an obstruction of the reflected beacons. The preferred embodiment apparatus utilizes a single light source to detect an object's position in two dimensions.

摘要翻译： 确定对象的位置和相关联的装置的方法提供可以方便地传送到计算机以计算对象的位置的形式的位置信息。 在代表性地并入计算机键盘的优选实施例中，确定对象位置的方法包括形成反射信标的光栅并检测反射信标的阻塞。 优选的实施例装置利用单个光源在二维中检测物体的位置。

公开(公告)号：US4735517A

公开(公告)日：1988-04-05

申请号：US794213

申请日：1985-10-31

申请人： Richard M. Knox, Jr. ,  Wm. Michael Miller

发明人： Richard M. Knox, Jr. ,  Wm. Michael Miller

IPC分类号： B41J2/28 ,  H01F7/18 ,  H02P27/04 ,  B41J9/38

CPC分类号： H01F7/1883 ,  B41J2/28

摘要： An impact printer has a flux regulator for each of the coils in its printhead. Each regulator provides a reference voltage indicative of the desired flux in the associated coil. A circuit is provided for measuring the flux in the coil and for providing a voltage representative thereof. The measured flux representation is compared with the reference flux representation and any difference is applied to a power circuit which then provides more or less power to the associated coil.

摘要翻译： 撞击式打印机具有用于其打印头中每个线圈的通量调节器。 每个调节器提供指示相关线圈中所需通量的参考电压。 提供用于测量线圈中的通量并提供代表它的电压的电路。 将测量的通量表示与参考通量表示进行比较，并且将任何差异应用于电力电路，其然后向相关联的线圈提供更多或更少的功率。