公开(公告)号：WO1992020143A1

公开(公告)日：1992-11-12

申请号：PCT/US1992003744

申请日：1992-05-06

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  EVANS, Stuart, Gerard ,  IRWIN, William, George

IPC: H02P08/00

CPC classification number: H02P8/04

Abstract: A method for generating stepper motor ramps and analyzing the motor torque required compared with the motor torque available wherein the generated ramp will accelerate the motor as fast as possible while maintaining a user settable torque safety factor and/or safety margin. The method uses the minimum available stepper motor torque at the current motor speed to ultimately compute the maximum acceleration that can be used, uses the maximum acceleration to generate the next motor step time and hence the next motor velocity, computes the next velocity from the desired acceleration and the previous velocity and takes advantage of the fact that friction will help during deceleration of the motor. In particular, the method comprises the steps of determining the minimum available torque using the current motor velocity and the torque-speed characteristic of the motor, applying to the available torque a safety factor and then a safety margin to determine maximum usable torque wherein the safety factor is derived from motor information and the safety margin is derived from system information, calculating the maximum acceleration using the friction and moment of inertia of the system and the maximum usable motor torque, calculating the time duration of the next step for advancing the motor, repeating the foregoing steps to determine all steps in the ramps, and utilizing the generated motor ramps in advancing the stepper motor. The generated ramp always exploits the full drive capability of the stepper motor, and it provides a relatively constant margin between available torque and required torque during both acceleration and deceleration of the motor.

公开(公告)号：WO1992020065A1

公开(公告)日：1992-11-12

申请号：PCT/US1992003137

申请日：1992-04-17

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  WELDY, John, Allan

IPC: G11B27/022

CPC classification number: G11B27/105 ,  G11B19/02 ,  G11B19/16 ,  G11B27/11 ,  G11B2220/2545 ,  G11B2220/41 ,  H04N5/7605

Abstract: One selector embodiment of the present invention selects recorded entities of the type that are stored on a portable recording medium that is insertable into a player with each recorded entity being accessed for playback by a unique sequence of signals. An index sheet is provided with a plurality of visual representations thereon, with each visual representation corresponding to each of the entities stored on the portable recording medium. A transparent overlay is positioned over the index sheet for generating signals corresponding to an operator touching the transparent overlay at the location of a selected visual representation of the stored entity desired to be played back. A sequencer that is responsive to the generated signals converts the generated signals to the unique sequence of signals for causing the player to playback a selected recorded entity. Some other embodiments include a remote handheld unit that is integrated with a transparent overlay; a non-integrated transparent overlay; and a switch matrix that is positioned below the index sheet rather than over the index sheet.

Abstract translation: 本发明的一个选择器实施例选择存储在可插入播放器的便携式记录介质上的类型的记录实体，每个记录实体被访问以通过唯一的信号序列进行回放。 索引表上提供有多个视觉表示，每个视觉表示对应于存储在便携式记录介质上的每个实体。 透明覆盖层位于索引表上方，用于产生与在期望被回放的所存储的实体的所选视觉表示的位置处触摸透明覆盖层的操作员对应的信号。 响应于所产生的信号的定序器将所生成的信号转换成唯一的信号序列，以使玩家回放所选择的记录实体。 一些其他实施例包括与透明覆盖层集成的远程手持单元; 非集成透明叠层; 以及位于索引表下方而不是在索引表上方的开关矩阵。

公开(公告)号：WO1992020001A1

公开(公告)日：1992-11-12

申请号：PCT/US1992003674

申请日：1992-05-04

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  NEWMAN, Peter, Austin

IPC: G02B07/02

CPC classification number: G02B7/028

Abstract: An element, such as a lens, is mounted on an element holder, such as a lens holder, so as to be constrained with a clearance-free, exact centering fit. The element has three radial faces spaced 120° apart with respect to the center of the element, and the element holder has three abutments spaced 120° apart with respect to a center point about which the abutments are distributed. Upon seating the element in the element holder with the radial faces and abutments in engagement, the element is constrained with the center points of the element and element holder in alignment. The radial faces and abutments are held in engagement by a retainer which also holds the element on the element holder. In accordance with one embodiment of the invention, the element is a plastic lens, and the element holder is a lens barrel, the lens being retained with clearance within the lens barrel by a retaining ring. Since the lens is engaged radially, rather than peripherally, the lens is free to expand and contract radially within the barrel.

公开(公告)号：WO1992019682A1

公开(公告)日：1992-11-12

申请号：PCT/US1992003671

申请日：1992-05-04

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  BAGRODIA, Shriram ,  FAGERBURG, David, Richard ,  WATKINS, Joseph, John ,  LAWRENCE, Paul, Blakney

IPC: C08L81/02

CPC classification number: C08L77/00 ,  C08L81/02 ,  C08L81/00

Abstract: A composition comprising an admixture of (A) a copoly (arylene sulfide) corresponding to the structure [(-A-S-)1-x(-A-S-S-)x]n wherein (A) is a divalent substituted or unsubstituted aromatic radical, x is in the range of 0.5 to 0.001 and n is at least 25, and (B) a polyamide corresponding to general structure (I) or to general structure (II).

Abstract translation: 对应于[（-AS-）1-x（-ASS-）x] n结构的（A）共聚（亚芳基硫醚）的混合物的组合物，其中（A）是二价取代或未取代的芳族基团，x 在0.5至0.001的范围内，n至少为25，和（B）对应于一般结构（I）或通用结构（II）的聚酰胺。

公开(公告)号：WO1992019076A1

公开(公告)日：1992-10-29

申请号：PCT/US1992002842

申请日：1992-04-07

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  RAY, Lawrence ,  HECKMAN, Christopher ,  SULLIVAN, James

IPC: H04N11/04

CPC classification number: H04N11/042 ,  H04N1/644 ,  H04N19/124 ,  H04N19/126 ,  H04N19/14 ,  H04N19/146 ,  H04N19/15 ,  H04N19/186 ,  H04N19/192 ,  H04N19/50 ,  H04N19/60 ,  H04N19/94

Abstract: The secondary quantization of a plurality of signals such as scanner signals quantized in a colorimetric coordinate system for the modified spectral response of a display device. The secondary quantization reflects the nonlinear human response to color. Two embodiments of the secondary quantization method are presented. The first method is a global cost reduction approach and the second is a method that diffuses the visual costs equally into each secondary quantization level or bin.

Abstract translation: 多个信号的二次量化，例如在用于显示装置的修改的光谱响应的比色坐标系中量化的扫描仪信号。 二次量化反映了非线性人类对颜色的反应。 介绍了二次量化方法的两个实施例。 第一种方法是全球成本降低方法，第二种方法是将视觉成本均等地扩散到每个二级量化级别或二进制位。

公开(公告)号：WO1992018911A1

公开(公告)日：1992-10-29

申请号：PCT/US1992002932

申请日：1992-04-09

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  JOHNSON, Kevin

IPC: G03G15/01

CPC classification number: G03G15/167 ,  G03G15/0131 ,  Y10T74/19516 ,  Y10T74/1956

Abstract: In an electrotatographic printer and/or copier, toner images are transferred from the outer surface of a rotating image process drum (1) to a receiver sheet carried on the outersurface of a rotating trnsfer drum (5) as the respective drum surfaces pass through a transfer zone defined by a nip between the drums. To assure precise registration of the transferred toner image with a desired portion of the receiver sheet, position control apparatus (50) is provided for adjusting the angular position of the transfer drum relative to that of the process drum (1) as the transfer drum (5) rotates to present the receiver sheet to the image transfer zone. Such apparatus responds to a control signal representing variations, from nominal, in the position of the toner image on the process drum (1) and/or in the position of the receiver sheet on the transfer drum (5). The position control apparatus (50) of the invention is particularly useful in color electrostatographic systems for precisely registering multiple color separation images on a receiver sheet.

公开(公告)号：WO1992017979A1

公开(公告)日：1992-10-15

申请号：PCT/US1992002570

申请日：1992-03-31

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  LEONE, Anthony, James, III ,  SPAULDING, Kevin, Edward

IPC: H04N01/40

CPC classification number: H04N1/4055

Abstract: In the present invention each input pixel value is compared against a randomly selected threshold value to provide an output pixel having a value indicative of which of the values is greater. The threshold value is selected from one of a plurality of threshold matrices, each having a predetermined number of threshold values that are arranged in a pattern with the values for a base matrix being increased by an increment for each succeeding one of the plurality of threshold matrices. The selection of the one threshold matrix is made by means of a pseudo-random number generator.

公开(公告)号：WO1992017821A1

公开(公告)日：1992-10-15

申请号：PCT/US1992002303

申请日：1992-03-24

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  MITCHELL, James, Edward ,  WEST, Paul, Richard ,  JOSEPHSON, Paul, Richard, Jr.

IPC: G03F07/105

CPC classification number: G03F7/105

Abstract: Negative-working lithographic printing plates comprise a radiation-sensitive composition having incorporated therein a photocrosslinkable polymer, containing the photosensitive group (I) as an integral part of the polymer backbone, and a print-out composition which produces an optical density difference upon exposure to activating radiation and thereby enables the exposed image on the printing plate to be seen before the plate is processed. The print-out composition comprises a leuco form of a dye having one or more removable hydrogen atoms, the removal of which forms a compound colored differently from the leuco form; a photo-oxidant which has a photoscissionable nitrogen-oxygen bond, the photo-oxidant serving to convert the leuco dye to the differently colored form when the composition is exposed to activating radiation; and a heteroaromatic amine N-oxide which functions to improve the photo-efficiency of the print-out composition and thereby increase the print-out density.

公开(公告)号：WO1992017810A1

公开(公告)日：1992-10-15

申请号：PCT/US1992002572

申请日：1992-03-31

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  MARKIS, William

IPC: G02B26/10

CPC classification number: G02B27/0031 ,  G02B26/106

Abstract: A calibration method and apparatus is disclosed that includes a power stabilized laser diode to generate a laser beam that is passed through the hologon scanner to be calibrated and a mechanism for measuring the power intensity of the laser beam at a plurality of positions at an exposure plane for each facet of the hologon scanner. The measured light levels are converted to correction factors that are stored in a corresponding programmable read only memory (PROM) as a function of facet number and scan position. The hologon scanner and its corresponding programmable PROM are then installed in a laser scanning apparatus. The laser scanning apparatus adjusts the output of its light source in accordance with the correction factors stored in the PROM in order to compensate for variations in the light transmission efficiency of the facets of the hologon scanner.

公开(公告)号：WO1992017538A1

公开(公告)日：1992-10-15

申请号：PCT/US1992002578

申请日：1992-04-02

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  EDWARDS, Ray ,  MRUK, William, Andrew

IPC: C08L23/04

CPC classification number: C09D123/04 ,  C09D123/06 ,  C08L2666/04 ,  C08L2666/54 ,  C08L2666/02 ,  C08L2666/28

Abstract: Novel polyethylene compositions comprising a blend of a polyethylene component having defined properties, a specific quantity of defined tackifying resins and defined quantities of thermally sensitive additives are disclosed. In addition, process for extrusion coating at high speeds and relatively low extrusion coating temperatures employing invention compositions is disclosed.

Abstract translation: 公开了包含具有确定性质的聚乙烯组分，特定量的限定的增粘树脂和限定量的热敏添加剂的共混物的新型聚乙烯组合物。 此外，公开了使用本发明组合物的高速挤出涂布和相对低的挤出涂布温度的方法。