公开(公告)号：US06786416B2

公开(公告)日：2004-09-07

申请号：US10445592

申请日：2003-05-27

Applicant: Vivek K. Soni ,  J. Barry Mahoney ,  William T. Plummer ,  Richard G. Egan

Inventor： Vivek K. Soni ,  J. Barry Mahoney ,  William T. Plummer ,  Richard G. Egan

IPC: G06K1906

CPC classification number: G06K7/10851 ,  G06K7/12 ,  G06K19/06046 ,  G06K2019/06225

Abstract: The present invention relates to encoding and decoding of information using materials that are mildly absorbing radiation over a wide range of infrared wavelengths and substantially non-absorbing in the visible wavelengths. Examples of such encoding of information are bar codes and area markings. Information is encoded in markings on a base medium by depositing or intertexturing on the base medium a material where the surface dimensions, thickness and presence of the material contain the encoded information. The encoding utilizes a lower cost, more stable material than a material that is highly absorbing over a range of infrared wavelengths and substantially non-absorbing in the visible wavelengths. However, since the material is mildly absorbing in the infrared range, the signal obtained by reflecting or transmitting infrared radiation from the markings will be less distinct. Thus, inventive methods are needed to ensure that the encoded information can be decoded. Two different approaches are disclosed; (a) detecting the absorption spectrum and comparing to the known spectrum of the material in order to detect the presence and surface dimensions of the material and (b) utilizing techniques to improve the signal-to-noise such as restricting the range of wavelengths, matched filters and narrowing the bandwidth.

Abstract translation: 本发明涉及使用在宽范围的红外波长温和地吸收辐射并且在可见波长中基本上不吸收的材料的信息的编码和解码。 这种信息编码的示例是条形码和区域标记。 信息通过在基础介质上沉积或互连在材料上的基础介质上以标记编码，其中材料的表面尺寸，厚度和存在包含编码信息。 该编码采用比在可见波长范围内高度吸收并在可见波长内基本上不吸收的材料的成本更低，更稳定的材料。 然而，由于该材料在红外范围内轻度吸收，所以通过反射或发射来自标记的红外辐射获得的信号将不那么明显。 因此，需要创造性的方法来确保编码信息能被解码。 披露了两种不同的方法; （a）检测吸收光谱并与材料的已知光谱进行比较，以便检测材料的存在和表面尺寸，以及（b）利用技术来改善诸如限制波长范围的信噪比， 匹配滤波器并缩小带宽。

公开(公告)号：US06595427B1

公开(公告)日：2003-07-22

申请号：US09652427

申请日：2000-08-31

Applicant: Vivek K. Soni ,  J. Barry Mahoney ,  William T. Plummer ,  Richard G. Egan

Inventor： Vivek K. Soni ,  J. Barry Mahoney ,  William T. Plummer ,  Richard G. Egan

IPC: G06K1906

CPC classification number: G06K7/10851 ,  G06K7/12 ,  G06K19/06046 ,  G06K2019/06225

Abstract: The present invention relates to encoding and decoding of information using materials that are capable of mildly absorbing radiation over a wide range of infrared wavelengths and substantially non-absorbing in the visible wavelengths. Examples of such encoding of information are bar codes and area markings. Information is encoded in markings on a base medium by depositing or intertexturing on the base medium a material where the surface dimensions, thickness and presence of the material contain the encoded information. The encoding, as disclosed in this invention, utilizes a lower cost, more stable material than a material that is capable of highly absorbing over a range of infrared wavelengths and substantially non-absorbing in the visible wavelengths. However, since the material used in this invention is mildly absorbing in the infrared range, the signal obtained by reflecting or transmitting infrared radiation from the markings will be less distinct. Thus, inventive methods are needed to ensure that the encoded information can be decoded. Two different approaches are disclosed; (a) detecting the absorption spectrum and comparing to the known spectrum of the material in order to detect the presence and surface dimensions of the material and (b) utilizing techniques to improve the signal-to-noise such as restricting the range of wavelengths, matched filters and narrowing the bandwidth.

Abstract translation: 本发明涉及使用能够在宽范围的红外波长温和地吸收辐射并且在可见波长中基本上不吸收的材料的信息的编码和解码。 这种信息编码的示例是条形码和区域标记。 信息通过在基础介质上沉积或互连在材料上的基础介质上以标记编码，其中材料的表面尺寸，厚度和存在包含编码信息。 如本发明所公开的那样，编码比使用能够在可见波长范围内高度吸收红外波长并基本上不吸收的材料使用更低成本，更稳定的材料。 然而，由于本发明中使用的材料在红外范围内轻微吸收，所以通过反射或发射来自标记的红外辐射获得的信号将不那么明显。 因此，需要创造性的方法来确保编码信息能被解码。 披露了两种不同的方法; （a）检测吸收光谱并与材料的已知光谱进行比较，以便检测材料的存在和表面尺寸，以及（b）利用技术来改善诸如限制波长范围的信噪比， 匹配滤波器并缩小带宽。

公开(公告)号：US6061372A

公开(公告)日：2000-05-09

申请号：US107870

申请日：1998-06-30

Applicant: William T. Plummer ,  Marc Thompson ,  Douglas S. Goodman ,  Peter P. Clark

Inventor： William T. Plummer ,  Marc Thompson ,  Douglas S. Goodman ,  Peter P. Clark

IPC: G06K7/10 ,  G06K15/12 ,  H01S5/042 ,  H01S3/00 ,  H01S3/13

CPC classification number: G06K7/10 ,  G06K15/1214 ,  G06K15/1223 ,  H01S5/042

Abstract: Disclosed is a two-level current driver suitable for driving a semiconductor laser for printing applications, the laser driver including a primary power source for producing a first current pulse of amplitude I.sub.1 and of duration T.sub.2, a secondary power source for producing a second current pulse of amplitude I.sub.2 and of duration T.sub.1, means for combining the outputs of the power sources, and sensing means for detecting the current pulse output from the primary power source.

Abstract translation: 公开了适用于驱动用于打印应用的半导体激光器的两级电流驱动器，该激光驱动器包括用于产生振幅I1和持续时间T2的第一电流脉冲的主电源，用于产生第二电流脉冲 振幅I2和持续时间T1的装置，用于组合电源的输出的装置，以及用于检测从主电源输出的电流脉冲的感测装置。

公开(公告)号：US5933278A

公开(公告)日：1999-08-03

申请号：US885637

申请日：1997-06-30

Applicant: William T. Plummer ,  Jeffrey W. Roblee ,  Douglas S. Goodman

Inventor： William T. Plummer ,  Jeffrey W. Roblee ,  Douglas S. Goodman

IPC: G02B27/14 ,  G03F7/20 ,  G02B27/10 ,  G02B5/04 ,  G02B5/08

CPC classification number: G03F7/702 ,  G02B27/1073 ,  G02B27/143

Abstract: A device for redirecting beams of light emitted from different sources includes: a monolithic stationary substrate having alignment surfaces for aligning the device for mounting into a system; multiple facets resident on the substrate including at least two facets having surfaces for redirecting the beams of light emitted from different sources; and facet edges on the substrate demarcating each of the multiple facets from one another, the edges providing outside corners greater than .pi. radians between surfaces of adjacent multiple facets. The surfaces of the multiple facets are preferably surfaces of revolution created by cutting the facet surfaces while the device is rotated about a common axis, for instance, by machining via single diamond point turning.

Abstract translation: 用于重定向从不同源发射的光束的装置包括：具有对准表面的单片固定基板，用于对准装置以安装到系统中; 驻留在衬底上的多个面包括至少两个具有用于重定向从不同源发射的光束的表面的面; 并且衬底上的刻面边缘彼此分隔多个刻面中的每一个，所述边缘提供在相邻的多个刻面的表面之间的外角。 多个小面的表面优选是通过在装置围绕公共轴线旋转的情况下切割小面表面而产生的旋转表面，例如通过经由单个钻石点转动的机械加工。

公开(公告)号：US5900902A

公开(公告)日：1999-05-04

申请号：US901707

申请日：1997-07-28

Applicant: Carl A. Chiulli ,  Yalan Mao ,  William T. Plummer

Inventor： Carl A. Chiulli ,  Yalan Mao ,  William T. Plummer

IPC: B41J2/475 ,  B41J2/47 ,  G01D15/34

CPC classification number: B41J2/4753

Abstract: Apparatus and methods for exposing multilayered thermal imaging media to eliminate "cloud" or "woodgrain" artifacts by proper optimization of the exposing radiation angle of incidence. The exposure angle of incidence is large enough so that all rays with high reflectance loss are paired with equally many with low reflectance loss to increase printing efficiency.

Abstract translation: 用于暴露多层热成像介质以通过曝光辐射入射角的适当优化来消除“云”或“木纹”伪像的装置和方法。 入射角度的曝光角度足够大，所以具有高反射率损失的所有光线都具有同等多数的低反射率损失，以提高打印效率。

公开(公告)号：US5028110A

公开(公告)日：1991-07-02

申请号：US708559

申请日：1985-03-06

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: G02B6/28 ,  G02B6/42

CPC classification number: G02B6/2817 ,  G02B6/4246

Abstract: An optical component for bidirectionally coupling an optical fiber with active devices for transmitting and receiving information in the form of electromagnetic radiation. The component comprises an integrally formed body molded of optical quality plastic and having two opposed ends, one of which is adapted to receive an optical fiber and the other the active devices. Between the two ends are symmetrically arranged ellipsoidal and planar reflecting surfaces which define a pair of double folded optical paths, one each from an active device to the optical fiber. The reflecting surfaces operate by total internal reflection and are arranged along with other body surfaces so that the component can be molded without the need for mold side action.

Abstract translation: 一种用于将光纤与用于以电磁辐射的形式发送和接收信息的有源装置双向耦合的光学部件。 该部件包括由光学质量塑料模制的整体成形体，并且具有两个相对的端部，其中一个端部适于容纳光纤，而另一个主动装置。 在两端之间是对称布置的椭圆面和平面反射表面，其限定了一对双折叠光路，一个从有源器件到光纤。 反射表面通过全内反射进行操作并且与其它体表一起布置，使得可以在不需要模具侧面作用的情况下模制该部件。

公开(公告)号：US4992824A

公开(公告)日：1991-02-12

申请号：US386951

申请日：1989-07-31

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: G02F1/13 ,  G03B27/73 ,  H04N1/40 ,  H04N1/50

CPC classification number: H04N1/4005 ,  H04N1/40031 ,  H04N1/502

Abstract: Method and apparatus which utilize an LCD modulator array for printing and/or enlarging an image recorded in a color film negative, a positive transparency or a color print, which LCD modulator array has pixels whose "closing time" (the time it takes to convert a pixel from a condition wherein it transmits radiation to a condition wherein it blocks radiation) is substantially longer than their "opening time" (the time it takes to convert a pixel from a condition wherein it blocks radiation to a condition wherein it transmits radiation). In accordance with the present invention, each pixel of the LCD modulator array is opened and closed in a rapid sequence, one after the other, at intervals which are much shorter than the closing time of the pixels of the LCD modulator array. The amount of radiation transmitted by each rapidly opened pixel is determined by detecting a spike of radiation which is transmitted through the rapidly opened pixel and by detecting and subtracting a background amount produced by radiation which is transmitted through other, slowly closing pixels.

公开(公告)号：US4759596A

公开(公告)日：1988-07-26

申请号：US645694

申请日：1984-08-30

Applicant: Hong Po ,  William T. Plummer

Inventor： Hong Po ,  William T. Plummer

IPC: G02B6/34 ,  G02B6/26 ,  G02F1/00 ,  H04B9/00

CPC classification number: G02B6/29337

Abstract: An optical resonant cavity adapted to receive, as an input from a transmission trunk line, a group of optical signals distributed in wavelength over a predetermined band and to provide, as an output, a narrower band of the optical signals. The wavelength selective nature of the cavity stems from a modification of its resonant modes with periodic structures that are interferometrically formed as alternating layers of high and low index of refraction in photopolymeric material at its opposite ends and operate to suppress resonant modes at wavelengths outside of the narrow band desired as an output.

Abstract translation: 一种光谐振腔，适于从传输中继线接收一组以预定频带的波长分布的光信号，并提供光信号的较窄频带作为输出。 空腔的波长选择性源于其谐振模式的修改，其周期性结构被干涉地形成为光聚合材料在其相对端处的高折射率和低折射率的交替层，并且用于抑制在 窄带期望作为输出。

公开(公告)号：US4649324A

公开(公告)日：1987-03-10

申请号：US677298

申请日：1984-12-03

Applicant: John M. Guerra ,  William T. Plummer

Inventor： John M. Guerra ,  William T. Plummer

IPC: H01J9/44 ,  H04N17/04 ,  H01J29/56

CPC classification number: H01J9/44 ,  H04N17/045

Abstract: An improved method and apparatus for rapidly and accurately adjusting CRT image geometry for the purpose of removing defects in an image reproduced by a CRT. The method and apparatus include a conventional pattern generator for producing a grid-like test pattern, in the form of two mutually perpendicular sets of closely spaced parallel lines, on the viewing screen of the CRT whose geometry or image-forming apparatus is to be adjusted. A reference pattern image formed on a transparent base material suitable for viewing by transmitted light and having the same general characteristics as the CRT formed image is supported in superposed relationship with respect to the CRT formed, pattern generator produced test pattern image. Moire pattern bands or fringes indicative of defects in the displayed test pattern and therefore in the CRT geometry viewable by an equipment operator when viewing the displayed test pattern through the transparent reference pattern in such a superposed relationship may be readily removed by adjusting various component parts of the image-forming electron beam deflection system until the moire fringes resulting from image-defect generated misalignment between the CRT formed test pattern image and the transparent material formed reference pattern image are nulled or are no longer visible to an equipment operator.

Abstract translation: 一种改进的方法和装置，用于快速和准确地调整CRT图像几何形状，以消除由CRT再现的图像中的缺陷。 该方法和装置包括用于在其几何形状或图像形成装置将被调整的CRT的观察屏上产生呈两个相互垂直的彼此垂直的彼此平行的组的形式的格栅状测试图案的常规图案发生器 。 支持透明基材上形成的参考图案图像，该透明基材适合于通过透射光观察并且具有与CRT形成的图像相同的一般特性，与CRT形成的图案发生器产生的测试图案图像呈叠加关系。 指示显示的测试图案中的缺陷的莫尔图形带或条纹，并且因此在通过透明参考图案以这种叠加关系观看所显示的测试图案时，设备操作者可以看到的CRT几何形状带或条纹可以容易地通过调整各种组成部分 图像形成电子束偏转系统，直到由CRT形成的测试图案图像和所形成的透明材料形成的参考图案图像之间的图像缺陷产生的未对准产生的莫尔条纹成为零，或者不再对设备操作者可见。

公开(公告)号：US4549891A

公开(公告)日：1985-10-29

申请号：US582914

申请日：1984-02-23

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: C03B37/012 ,  C03B37/018 ,  C03B37/01

CPC classification number: C03B37/018 ,  C03B37/01205 ,  C03B2203/32

Abstract: A method of preparing an optical fiber includes the steps of applying a first cladding layer of a sinterable, glasseous particulate matter providing a selected index of refraction to a support surface, forming at least one longitudinally-extending groove in the layer prior to sintering, applying a deposit of glasseous particulate matter in said groove to ultimately define a core stripe having an index of refraction greater than that of the previously applied layer, applying a covering layer of glasseous particulate matter, sintering the various layers and the core strip to provide an optical fiber preform, and drawing the preform to provide an optical fiber having a rotationally non-symmetric characteristics with a core of higher index of refraction than the surrounding cladding.

Abstract translation: 制备光纤的方法包括以下步骤：将提供选择的折射率的可烧结的糖化颗粒物质的第一包层施加到支撑表面，在烧结之前在该层中形成至少一个纵向延伸的凹槽，施加 在所述凹槽中沉淀出粗粒状颗粒物质，以最终限定具有大于先前施加层的折射率的芯条，施加一层包覆层的粒状颗粒物质，烧结各层和芯条以提供光学 纤维预成型件，并且拉伸预成型件以提供具有旋转非对称特性的光纤与具有比周围包层更高的折射率的纤芯。