公开(公告)号：US6094309A

公开(公告)日：2000-07-25

申请号：US235363

申请日：1999-01-21

Applicant: Willem G. Ophey

Inventor： Willem G. Ophey

IPC: G02B27/02 ,  G02B5/30 ,  G02B27/00 ,  G02B27/01 ,  G02B27/14 ,  G02B27/22

CPC classification number: G02B27/4205 ,  G02B27/0037 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/0132 ,  G02B2027/0136 ,  G02B5/30

Abstract: The present invention relates to a head-mounted display comprising at least one image display panel and an optical system for projecting an image in a left and right exit pupil of the head-mounted display. The optical system comprises a beam splitter, a hollow mirror and a first and a second light channel each comprising a folding mirror and magnifying optics. The magnifying optics comprise a lens element. An additional lens, one surface of which is provided with a diffractive structure, is arranged between the image display panel and the hollow mirror.

Abstract translation: 本发明涉及一种头戴式显示器，其包括至少一个图像显示面板和用于在头戴显示器的左右出射光瞳中投影图像的光学系统。 光学系统包括分束器，中空反射镜以及每个包括折叠镜和放大光学器件的第一和第二光通道。 放大光学元件包括透镜元件。 在图像显示面板和中空反射镜之间布置有附加透镜，其一个表面设置有衍射结构。

公开(公告)号：US6094227A

公开(公告)日：2000-07-25

申请号：US14173

申请日：1998-01-27

Applicant: Stephane-Pascal Guimier

Inventor： Stephane-Pascal Guimier

IPC: G06F3/153 ,  G09G3/20 ,  G09G5/00 ,  G09G5/391 ,  H04N7/01 ,  H04N11/22

CPC classification number: H04N7/01 ,  G06F3/153 ,  G09G2340/0435 ,  G09G3/2018 ,  G09G3/2025

Abstract: A digital signal converting method and device for converting an input image rate into an output image rate, is applied to input images which are formed by a plurality of input data frames. The method storing the input frames, calculating a sliding average over a plurality of stored frames, and deriving the averages for producing output images with a timing fixed by the output image rate.

Abstract translation: 用于将输入图像速率转换为输出图像速率的数字信号转换方法和装置被应用于由多个输入数据帧形成的输入图像。 存储输入帧的方法，计算多个存储的帧的滑动平均，并且以由输出图像速率固定的定时导出用于产生输出图像的平均值。

公开(公告)号：US6094205A

公开(公告)日：2000-07-25

申请号：US891759

申请日：1997-07-14

Applicant: Cornelis A. M. Jaspers

Inventor： Cornelis A. M. Jaspers

IPC: H04N5/208 ,  H04N9/64 ,  H04N5/21

CPC classification number: H04N5/208

Abstract: In a method of enhancing a quality of a video signal (Yin), an absolute value (ST) of a first derivative of the video signal (Yin) is obtained (51-59), and the video signal (Yin) is processed (53-57, 61-69) in dependence upon the absolute value (ST) of the derivative of the video signal (Yin).

Abstract translation: 在提高视频信号（Yin）的质量的方法中，获得视频信号（Yin）的一阶导数的绝对值（ST）（51-59），并且处理视频信号（Yin） 53-57,61-69），依赖于视频信号（Yin）的导数的绝对值（ST）。

公开(公告)号：US06092909A

公开(公告)日：2000-07-25

申请号：US233841

申请日：1999-01-20

Applicant: Franciscus G. P. Sools ,  Alexander V. Henzen ,  Reinder Smid

Inventor： Franciscus G. P. Sools ,  Alexander V. Henzen ,  Reinder Smid

IPC: E01F9/20 ,  E01F9/559 ,  E01F9/00 ,  F21V5/00 ,  F21V7/00 ,  F21V7/04

CPC classification number: E01F9/559 ,  E01F9/20

Abstract: A road marking unit (1) according to the invention comprises a house (10) with a light transmissive window (20). In the house (10) is arranged an electro-optic switch (30). In an activated state of the road marking unit (1) the electro-optic switch (30) achieves that light is reflected from the window (20) back to the window (20). In a de-activated state of the road marking unit (1) the electro-optic switch (30) achieves that light from the window (20) is absorbed. The road marking unit (1) of the invention has the advantage that it can also in bright environmental light it can be switched between visible and invisible.

Abstract translation: 根据本发明的道路标记单元（1）包括具有透光窗（20）的房屋（10）。 在房屋（10）中设置有电光开关（30）。 在道路标记单元（1）的激活状态下，电光开关（30）实现了光从窗（20）反射回窗（20）。 在道路标记单元（1）的去激活状态下，电光开关（30）实现来自窗（20）的光被吸收。 本发明的道路标线单元（1）的优点在于，它也可以在明亮的环境光下，在可见和不可见之间切换。

公开(公告)号：US6090174A

公开(公告)日：2000-07-18

申请号：US53447

申请日：1998-04-01

Applicant: Jan A. Douma ,  Willem S. Wijma

Inventor： Jan A. Douma ,  Willem S. Wijma

IPC: A47L9/16 ,  B01D45/12 ,  B01D45/14 ,  B04C5/103 ,  B04C9/00 ,  B01D45/16

CPC classification number: A47L9/1608 ,  B01D45/14 ,  B04C5/103 ,  B04C9/00 ,  B04C2009/005 ,  Y10S55/03

Abstract: A separator device (3) provided with a cyclone chamber (11, 79) for separating solid and/or liquid particles from a gas flow. The cyclone chamber (11, 79) has an upper wall (49) in which an outlet opening (15) is present, and a substantially rotationally symmetrical side wall (47, 81) in which an inlet opening (13) is present adjacent the upper wall (49). A discharge opening (17, 85) for the separated solid and/or liquid particles is present at a side (55, 83) of the cyclone chamber (11, 79) remote from the upper wall (49). According to the invention, a rotatable annular centrifugal unit (61, 87) is arranged in the cyclone chamber (11, 79) around the outlet opening (15) near the upper wall (49), by means of which unit a short-circuit flow running directly from the inlet opening (13) to the outlet opening (15) in the cyclone chamber (11, 79) is prevented. The efficiency of the separator device (3) is considerably improved thereby. In a first embodiment, the centrifugal unit (61) comprises a rotatable annular disc (65) positioned adjacent and parallel to the upper wall (49). In a second embodiment, the centrifugal unit (87) comprises a rotatable rim of blades (89) which is partly countersunk into a recess (95) in the upper wall (49). The separator device (3) can be used in a cyclone vacuum cleaner (1).

Abstract translation: 一种设置有用于从气流分离固体和/或液体颗粒的旋风室（11,79）的分离器装置（3）。 旋风室（11,79）具有其中存在出口开口（15）的上壁（49）和基本上旋转对称的侧壁（47,81），在该侧壁中存在入口开口（13） 上壁（49）。 用于分离的固体和/或液体颗粒的排出口（17,85）存在于远离上壁（49）的旋风室（11,79）的侧面（55,83）处。 根据本发明，可旋转的环形离心机组（61,87）在靠近上壁（49）的出口开口（15）周围设置在旋风室（11,79）内，借助于该单元，短路 防止在旋风室（11,79）中直接从入口（13）流到出口（15）的流动。 因此，分离装置（3）的效率大大提高。 在第一实施例中，离心单元（61）包括邻近并平行于上壁（49）定位的可旋转环形盘（65）。 在第二实施例中，离心单元（87）包括可旋转的边缘（89），其部分地埋入上壁（49）中的凹部（95）中。 分离器装置（3）可用于旋风式真空吸尘器（1）。

公开(公告)号：US6088828A

公开(公告)日：2000-07-11

申请号：US927886

申请日：1997-09-11

Applicant: Abraham J. De Bart ,  Frits A. Steenhof

Inventor： Abraham J. De Bart ,  Frits A. Steenhof

IPC: H03M13/00 ,  H03M13/09 ,  H03M13/23 ,  H03M13/29 ,  H03M13/37 ,  H03M13/39 ,  H03M13/41 ,  H03M13/45 ,  H04L1/00 ,  H04L7/00 ,  H03M13/33

CPC classification number: H03M13/2933 ,  H03M13/3738 ,  H03M13/41 ,  H03M13/6362 ,  H03M13/6508 ,  H03M13/6516 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0063 ,  H04L1/0065 ,  H04L1/0068 ,  H03M13/09 ,  H03M13/3776 ,  H04L2001/0093

Abstract: In order to find the position of the boundary between transmitted codewords, in a receiver a reliability measure for two possible positions are compared. If a relative difference measure of these reliability measure exceeds a predetermined threshold value, the reliability measure indicating the largest reliability corresponds to the correct position of the boundary between the codewords.

Abstract translation: 为了找到发送码字之间的边界的位置，在接收机中比较两个可能位置的可靠性度量。 如果这些可靠性度量的相对差异度量超过预定阈值，则表示最大可靠性的可靠性度量对应于码字之间的边界的正确位置。

公开(公告)号：US6088448A

公开(公告)日：2000-07-11

申请号：US25371

申请日：1998-02-18

Applicant: Alain Poirel

Inventor： Alain Poirel

IPC: G06F3/00 ,  H01H36/00 ,  H04B1/38 ,  H04M1/00 ,  H04M1/21 ,  H04M1/215 ,  H04M1/60 ,  H04M1/738

CPC classification number: H04B3/46 ,  H04B1/3816 ,  H04M1/215 ,  H04M1/6041 ,  H04M2250/12

Abstract: An apparatus for connecting to a number of peripheral devices has a detection device for detecting coupling of a particular one of the peripheral devices to the apparatus. The detection device has a first magnetic means and the particular one of the peripheral devices has a second magnetic means for cooperating with the first magnetic means. The first and second means form a unique pair for uniquely recognizing the particular one of the peripheral devices among the peripheral devices.

Abstract translation: 用于连接到多个外围设备的设备具有检测装置，用于检测特定的一个外围设备与设备的耦合。 检测装置具有第一磁性装置，并且外围装置中的特定一个具有用于与第一磁性装置配合的第二磁性装置。 第一和第二装置形成唯一对，用于唯一地识别外围设备中的特定一个外围设备。

公开(公告)号：US6088198A

公开(公告)日：2000-07-11

申请号：US491511

申请日：1995-06-16

Applicant: Mark T. Johnson ,  Freddy Roozeboom ,  Martinus H. W. M. Van Delden

Inventor： Mark T. Johnson ,  Freddy Roozeboom ,  Martinus H. W. M. Van Delden

IPC: G11B5/133 ,  G11B5/008 ,  G11B5/02 ,  G11B5/127 ,  G11B5/193 ,  G11B5/31 ,  H01F1/34

CPC classification number: G11B5/1274 ,  G11B5/133 ,  G11B5/193 ,  G11B5/3103 ,  G11B5/00813 ,  G11B5/02

Abstract: Magnetic heads comprising at least one core portion of polycrystalline MnZn-ferroferrite material exhibit a very low so-called "rubbing noise" level if the average grain size of the material ranges between 0.2 and 3.0 micrometers. The rubbing noise level of these heads is even lower than the electronic noise level if the average grain size of the material ranges between 0.5 and 2.0 micrometers. By virtue thereof, the heads can very suitably be used in the frequency range from 5 to 100 MHz.

Abstract translation: 如果材料的平均晶粒尺寸在0.2和3.0微米之间，则包含多晶MnZn-铁铁素体材料的至少一个核心部分的磁头显示出非常低的所谓的“摩擦噪声”水平。 如果材料的平均晶粒尺寸在0.5和2.0微米之间，则这些磁头的摩擦噪声水平甚至低于电子噪声水平。 因此，头部可以非常适合地在5至100MHz的频率范围内使用。

公开(公告)号：US6088036A

公开(公告)日：2000-07-11

申请号：US170651

申请日：1993-12-20

Applicant: Jeremy S. Morris

Inventor： Jeremy S. Morris

IPC: G06T11/00 ,  G06T15/50 ,  G06T17/00

CPC classification number: G06T11/001 ,  G06T15/503

Abstract: An image of objects in a three dimensional space is generated for display on a two dimensional pixel array in which N renditions of the image are averaged, with each rendition having a sub-pixel offset from the previous rendition, to produce an anti-alias filtering effect. The N sub-pixel offsets are arranged to produce a basic array which ensures N times oversampling of a selected class or classes of image feature. For example, to give good antialias filtering of edges closely aligned with the x-y axes of the pixel array, the offsets are chosen to ensure bisection of the pixel area (A) at N points in each of x and y.

Abstract translation: 生成三维空间中的对象的图像以在二维像素阵列上显示，其中图像的N个再现被平均，每个再现具有与先前再现的偏移的子像素，以产生抗混叠滤波 影响。 N个子像素偏移被布置成产生基本阵列，其确保所选类别或图像特征的N次过采样。 例如，为了对与像素阵列的x-y轴紧密对准的边缘进行良好的抗锯齿滤波，选择偏移以确保像素区域（A）在x和y中的每一个处的N点的二等分。

公开(公告)号：US6087968A

公开(公告)日：2000-07-11

申请号：US60086

申请日：1998-04-14

Applicant: Engel Roza

Inventor： Engel Roza

IPC: H03M3/02 ,  H03M3/00

CPC classification number: H03M3/432

Abstract: An analog to digital converter comprises an asynchronous sigma-delta modulator generating an asynchronous duty cycle modulated square wave, sampling means to synchronously sample the asynchronous square wave and a decimating digital filter to convert the samples from the sampling means into a desired PCM-format.

Abstract translation: 模数转换器包括产生异步占空比调制方波的异步Σ-Δ调制器，用于同步采样异步方波的采样装置和抽取数字滤波器，以将来自采样装置的采样转换成期望的PCM格式。