公开(公告)号：WO2002103476A2

公开(公告)日：2002-12-27

申请号：PCT/US2002/018913

申请日：2002-06-13

Applicant: PERKINELMER, INC. ,  DONAHUE, Joseph, P. ,  HART, William, A.

Inventor： DONAHUE, Joseph, P. ,  HART, William, A.

IPC: G06F

CPC classification number: G06K15/12 ,  G06K15/1247 ,  G06K2215/111

Abstract: A method and apparatus for eliminating artifacts in images formed using more than one image segment. A buffer region associated with two adjacent image segments is defined wherein the intensity levels of the pixels are attenuated. When image segments substantially overlap in the buffer region, the intensity in the buffer region substantially sums to full scale. The intensity of the pixels in the buffer region is preferably attenuated using a device to modulate the intensity of the source of radiation.

Abstract translation: 一种用于消除使用多于一个图像段形成的图像中的假象的方法和装置。 定义与两个相邻图像段相关联的缓冲区，其中像素的强度水平被衰减。 当图像片段在缓冲区域中基本上重叠时，缓冲区域中的强度基本上达到满刻度。 优选地，使用用于调制辐射源的强度的装置来衰减缓冲区域中的像素的强度。

公开(公告)号：WO1994004994A1

公开(公告)日：1994-03-03

申请号：PCT/DE1993000719

申请日：1993-08-11

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  HEUWIESER, Erwin ,  REINER, Robert

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G06K15/12

CPC classification number: G06K15/1247

Abstract: An arrangement for the simultaneous control of a plurality of luminescent diodes comprises, for the control of each diode (1), an individual current source (2), the current of which can be controlled in intensity and cut off. The diodes can be tuned by adjusting the current intensity in a suitable device (6). The brightness control is set according to the ratio between the time for which the diode is switched on and off. To this end, for the plurality of luminescent diodes there is a number of pulse width modulators (8) which generate signals with different pulse ratios. Depending on the brightness to be radiated, the control input (4) can be connected to the corresponding pulse width modulator for the switch-on or off of the current source (2) of each luminescent diode.

公开(公告)号：WO1993013499A1

公开(公告)日：1993-07-08

申请号：PCT/EP1992002910

申请日：1992-12-15

Applicant: SIEMENS NIXDORF INFORMATIONSSYSTEME ... ,  CREUTZMANN, Edmund ,  SCHOLZ, Christian

Inventor： SIEMENS NIXDORF INFORMATIONSSYSTEME ...

IPC: G06K15/12

CPC classification number: G06K15/1247

Abstract: An electrophotographic printer or copier with an illumination correcting device for the optical character generator (ZG) contains means, e.g. a filter (FT), to compensate for the wavelength-dependent light sensitivity of the charge image substrate (FL) by controlling the lighting energy of the lighting devices (LED) dependently upon the wavelength of the light emitted by them and the light sensitivity of the charge image substrate (FL). This prevents the formation of undesired colour differences in the form of stripes when colouring large areas.

Abstract translation: 具有用于光学字符发生器（ZG）的照明校正装置的电子照相打印机或复印机包含例如装置。 滤光器（FT），其通过根据它们发射的光的波长和通过控制照明装置的光的灵敏度来控制照明装置（LED）的照明能量来补偿电荷图像基板（FL）的波长依赖的光敏度 电荷图像基板（FL）。 这防止在着色大面积时形成条纹形式的不希望的颜色差异。

公开(公告)号：WO1988007729A1

公开(公告)日：1988-10-06

申请号：PCT/US1988000958

申请日：1988-03-29

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  PHAM, Hieu, T. ,  ZEISE, Eric, K. ,  NG, Yee, S. ,  TSCHANG, Pin, S. ,  KIEFFER, Kenneth, D.

IPC: G06K15/12

CPC classification number: G06K15/1247

Abstract: An improved printer apparatus (20) includes a series of point-like radiation sources (30), such as LED's, arranged in a row for exposing a recording medium. Logic means (43) is provided for determining which of the point-like radiation sources are to be selected for energization. A current driver means (49) includes means (44) responsive to the logic means (43) to provide electrical current to the radiation sources (30) selected. The current driver means (49) includes a current mirror having a master circuit (Q2, q1, 38) for generating a reference current (IREF) and a plurality of slave circuits (Q13, 30) for providing respective driver currents to the radiation sources (30) selected for energization. The master circuit includes a resistor (38) of the type that at least prior to adjustment permits for substantially continuous adjustment of driver current over a range of resistance values. Two independent power supplies (P1, P2) are provided to the print head. One power suppply (P1) provides electrical energy for the logic device at a fixed voltage suitable for the logic devices. A second power supply (P2) provides the electrical energy for illuminating the point-like radiation sources. Thus, power to the logic devices is isolated from noise generated during energization of the point-like radiation sources. An adjustable variable voltage is provided by this second power supply to permit for flexibility in adjustment of the currents to the point-like radiation sources. This variable voltage may be adjusted in response to aging of the LED's or temperature of the print head.

Abstract translation: 一种改进的打印机设备（20）包括一排排列成行的用于曝光记录介质的点状辐射源（诸如LED）。 逻辑装置（43）被提供用于确定哪个点状辐射源将被选择用于通电。 电流驱动器装置（49）包括响应于逻辑装置（43）向所选择的辐射源（30）提供电流的装置（44）。 电流驱动器装置（49）包括具有用于产生参考电流（IREF）的主电路（Q2，q1,38）和多个从电路（Q13,30）的电流镜，用于向辐射源提供相应的驱动电流 （30）选择用于通电。 主电路包括一种类型的电阻器（38），其至少在调整之前允许在电阻值范围内基本上连续地调节驱动器电流。 两个独立的电源（P1，P2）被提供给打印头。 一个电源（P1）以适合逻辑器件的固定电压为逻辑器件提供电能。 第二电源（P2）提供用于照亮点状辐射源的电能。 因此，逻辑器件的功率与点状辐射源激励期间产生的噪声隔离。 由该第二电源提供可调节的可变电压以允许灵活地调整到点状辐射源的电流。 该可变电压可以响应于LED的老化或打印头的温度而被调整。

公开(公告)号：WO1986002045A1

公开(公告)日：1986-04-10

申请号：PCT/JP1984000462

申请日：1984-09-27

Applicant: SANYO ELECTRIC CO., LTD. ,  TOTTORI SANYO ELECTRIC CO., LTD. ,  TAKASU, Hiromi ,  SAKAGUCHI, Shigeru

Inventor： SANYO ELECTRIC CO., LTD. ,  TOTTORI SANYO ELECTRIC CO., LTD.

IPC: B41J03/21

CPC classification number: G06K15/1247 ,  B41J2/45 ,  H04N1/193

Abstract: An optical printing apparatus includes an optical printing head and a photosensitive member. Utilization of a light-emitting diode array as the optical printing head makes it possible to effect esthetically pleasing printing quietly. The diode array printing head suffers, however, from some problems: the head is difficult to drive, and dot pitch and brightness are difficult to adjust. These problems adversely affect printing quality. The optical printing head of the present invention has overcome the driving difficulty, although it is statically driven, by efficient distribution of data transfer. The printing head features a selective printing timing which makes it possible to improve the printing quality.

Abstract translation: 光学打印装置包括光学打印头和感光构件。 利用发光二极管阵列作为光学打印头使得可以静音地进行美观的打印。 然而，二极管阵列打印头受到一些问题的困扰：头难以驱动，点距和亮度难以调整。 这些问题会影响打印质量。 本发明的光学打印头通过数据传输的有效分配，克服了驱动困难，尽管它是静态驱动的。 打印头具有选择性打印定时，这使得可以提高打印质量。

公开(公告)号：WO00032398A1

公开(公告)日：2000-06-08

申请号：PCT/JP1999/006525

申请日：1999-11-22

IPC: G06K15/12 ,  B41J2/45

CPC classification number: G06K15/1247

Abstract: A driver IC includes a first driver section for supplying driving signals to n output terminals and a second driver section for selectively switching one of m selection terminals (m >/= 3) to a predetermined potential. The first driver section includes a timing control circuit that provides a timing signal for the second driver section to perform the selective switching. The timing control circuit generates the timing signal based on external control signals supplied through a number of signal lines less than m.

Abstract translation: 驱动器IC包括用于向n个输出端子提供驱动信号的第一驱动器部分和用于选择性地将m个选择端子（m> = 3）中的一个切换到预定电位的第二驱动器部分。 第一驱动器部分包括定时控制电路，其提供用于第二驱动器部分执行选择切换的定时信号。 定时控制电路基于通过小于m的多条信号线提供的外部控制信号产生定时信号。

公开(公告)号：WO1994019901A1

公开(公告)日：1994-09-01

申请号：PCT/NL1993000035

申请日：1993-02-17

Applicant: INDIGO N.V. ,  LANDA, Benzion ,  BRAINARD, Charles, B.

Inventor： INDIGO N.V.

IPC: H04N01/04

CPC classification number: H04N1/0473 ,  G06K15/1247 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04748 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: Apparatus for optical imaging onto a moving surface including an exposable movable surface (8) for receiving an optical image, means (9) for measuring the movement of the surface and providing a surface movement reference signal and an array (12) of light sources operative to generate a plurality of timed optical beams, the array being operative to expose the movable surface and to provide a timing reference signal. The apparatus also includes a light source support structure (16) that supports the array of light sources and allows movement of the array of light sources only along a predetermined displacement path and positioning apparatus (17, 18) responsive to the relationship between the surface movement reference signal and the timing reference signal and operative to position the array of light sources on the predetermined displacement path, thereby to ensure proper placement of the optical beams on the movable surface.

Abstract translation: 用于在包括用于接收光学图像的可曝光可移动表面（8）的移动表面上的光学成像的装置，用于测量表面的移动并提供表面移动参考信号的装置（9）和可操作的光源阵列（12） 以产生多个定时光束，该阵列可操作以暴露可移动表面并提供定时参考信号。 该装置还包括光源支撑结构（16），该光源支撑结构（16）支撑光源阵列，并允许光源阵列仅沿着预定的位移路径和定位装置（17,18）响应于表面运动 参考信号和定时参考信号，并且用于将光源阵列定位在预定位移路径上，从而确保光束在可移动表面上的适当放置。

公开(公告)号：WO1991010930A1

公开(公告)日：1991-07-25

申请号：PCT/US1991000455

申请日：1991-01-22

Applicant: PHOTON IMAGING CORP.

Inventor： PHOTON IMAGING CORP. ,  GORDON, Eugene, I.

IPC: G02B06/04

CPC classification number: G02B6/06 ,  B41J2/46 ,  G06K15/1247 ,  G06K15/1252

Abstract: Une imprimante électronique comprend un faisceau de fibres optiques (15), les extrémités des fibres étant organisées de manière linéaire sur une première face (17) et de manière aréolaire sur une deuxième face (18). L'imprimante comprend en outre un agencement linéaire de diodes électroluminescentes ou d'obturateurs à cristaux liquides (19) qui forment des images sur les extrémités des fibres, un segment linéaire de la face aréolaire à la fois. Un miroir rotatif (24) déplace l'image lumineuse sur chaque segment linéaire successif de la face aréolaire afin de générer un signal numérique indicatif de la position de l'image lumineuse dans chaque cas. Cet agencement permet d'obtenir une imprimante électronique compacte, rapide et économique, aisément adaptable à l'impression à haute résolution et en couleurs.

Abstract translation: 一种电子打印机包括一束光纤（15），光纤的端部在第一面（17）上线性组织，而在第二面（18）中为阳极。 打印机还包括发光二极管或液晶快门（19）的线性排列，它们一次在纤维的端部形成图像，即直线部分。 旋转反射镜（24）在光滑表面的每个连续线性段上移动光图像，以在每种情况下生成指示光图像位置的数字信号。 这种布置使得可以获得紧凑，快速和经济的电子打印机，其易于适应高分辨率和彩色打印。

公开(公告)号：WO1991001532A1

公开(公告)日：1991-02-07

申请号：PCT/EP1990000182

申请日：1990-02-01

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  MAYER, Klaus

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G06K15/12

CPC classification number: G06K15/1247 ,  G06K15/027

Abstract: The light energy of the light-emitting elements of a character generator of an electrophotographic printer is determined by means of a photoelement (FE). The light-emitting elements are controlled during measurement so that each element emits a series of light pulses of identical radiant energy and predetermined pulse frequency associated with the element. The output signals of the photoelement (FE) are fed to an active low pass (V3) which computes a mean value that is used in the compensation process as a measure of the radiant energy of the light-emitting elements. The influence of low-frequency interferences (mains voltage) is reduced by a keyed potential control. The arrangement is used in an illumination energy correction device in the optical character generator of an electrophotographic printer.

Abstract translation: 通过光电元件（FE）确定电子照相打印机的字符发生器的发光元件的光能。 在测量期间控制发光元件，使得每个元件发射与元件相关联的相同辐射能量和预定脉冲频率的一系列光脉冲。 光电元件（FE）的输出信号被馈送到有效低通（V3），其计算在补偿处理中使用的平均值作为发光元件的辐射能的量度。 低频干扰（电源电压）的影响通过键控电位控制来降低。 该装置用于电子照相打印机的光学字符发生器中的照明能量校正装置。

公开(公告)号：WO1990007752A1

公开(公告)日：1990-07-12

申请号：PCT/US1989005643

申请日：1989-12-18

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  TSCHANG, Pin, S. ,  PHAM, Hieu, T. ,  KIEFFER, Kenneth, D.

IPC: G06K15/12

CPC classification number: G06K15/1247

Abstract: An improved printer apparatus (20) includes a print head having a series of point-like radiation sources (30), such as LED's, arranged in a row for exposing a recording medium (11). Enabling logic (43) is provided for determining which of the point-like radiation sources are to be selected for energization. A current driver responsive to the logic provides electrical current to the radiation sources selected. The current driver includes a current mirror having a master circuit (44a) for generating a reference current and a plurality of slave circuits (44b) for providing respective driver currents to the radiation sources selected for energization. The master circuit includes a series of parallel connected transistors (55) that may be instantaneously reprogrammed by digital control signals to said transistors. The characteristics of the transistors vary so that currents from them are scaled by say powers of two to provide an expanded current control capability. Environmental conditions and/or aging often require change in current to maintain desired recording performance. The need for such change may be automatically sensed and a new digital control word sent to the transistors to adjust current to the radiation sources.