公开(公告)号：US20120194879A1

公开(公告)日：2012-08-02

申请号：US13015355

申请日：2011-01-27

Applicant: Guoyi Fu ,  Mikhail Brusnitsyn

Inventor： Guoyi Fu ,  Mikhail Brusnitsyn

IPC: H04N1/04

CPC classification number: H04N1/047 ,  H04N1/107 ,  H04N1/387 ,  H04N2201/0414 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04787

Abstract: Two images are stitched together through minimization of a cost function that consists of registration errors from image data of the two images, as well as the estimated errors from a set of sensors. The weight function in the cost function is derived from the confidence value of sensor estimation that considers the sensor errors including lift and off page as well as a measure of accuracy of the sensor readings. Weights are used to adjust image registration accuracy against sensor accuracy to produce a set of registration parameters that would best stitch the two images together. In order to handle large errors for initial registration parameters and to avoid local minima in the minimization process, the image pair may be registered in a lower resolution and then refined in a higher resolution.

Abstract translation: 通过最小化两个图像的图像数据的注册错误的成本函数以及来自一组传感器的估计误差来将两个图像拼接在一起。 成本函数中的权重函数是从传感器估计的置信度值得出的，该估计考虑了包括提升和离页的传感器错误以及传感器读数精度的度量。 重量用于根据传感器精度调整图像配准精度，以产生一组最佳地将两张图像拼接在一起的配准参数。 为了处理初始注册参数的大错误并避免最小化过程中的局部最小值，图像对可以以较低分辨率登记，然后以更高分辨率进行精化。

公开(公告)号：US08228580B2

公开(公告)日：2012-07-24

申请号：US12119859

申请日：2008-05-13

Applicant: Nobuyuki Arai ,  Yoshinori Hayashi ,  Naoto Watanabe

Inventor： Nobuyuki Arai ,  Yoshinori Hayashi ,  Naoto Watanabe

IPC: G02B26/08

CPC classification number: B41J2/471 ,  G02B26/123 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04713 ,  H04N2201/04744

Abstract: An optical scanner includes a plurality of scanning optical systems each of which scans a different surface to be scanned and includes a light source configured to emit a light beam, an optical deflector having a plurality of reflection surfaces, and a synchronization detector configured to receive the light beam deflected by the optical deflector and detect a timing to scan an effective area of the surface to be scanned with the deflected light beam before a scanning is started or after the scanning is completed. The synchronization detector of one of a pair of scanning optical systems is disposed on a scanning end side to determine the scanning timing, and the synchronization detector of the other one of the pair of scanning optical systems is disposed on a scanning start side to determine the scanning timing.

Abstract translation: 光学扫描仪包括多个扫描光学系统，每个扫描光学系统扫描要扫描的不同表面，并且包括被配置为发射光束的光源，具有多个反射表面的光学偏转器，以及配置成接收 光束由光学偏转器偏转，并且在扫描开始之前或扫描完成之后检测用偏转光束扫描的待扫描表面的有效区域的定时。 一对扫描光学系统中的一个的同步检测器被设置在扫描端侧以确定扫描定时，并且一对扫描光学系统中的另一个的同步检测器设置在扫描开始侧，以确定 扫描时序。

公开(公告)号：US08159516B2

公开(公告)日：2012-04-17

申请号：US12607671

申请日：2009-10-28

Applicant: Syunichi Ono ,  Takashi Okano

Inventor： Syunichi Ono ,  Takashi Okano

IPC: B41J2/47

CPC classification number: G03G15/326 ,  G03G15/04072 ,  G03G15/043 ,  G06K15/129 ,  H04N1/053 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04786 ,  H04N2201/04794

Abstract: An image data is pre-processed in parallel by a pre-processing unit (A) and a pre-processing unit (B) arranged in parallel. The image data is transferred in synchronization with an image processing signal obtained by ORing a BD signal and an interpolation signal. Laser scanning for plural beams of a multi-laser beam is performed in synchronization with the BD signal. Color matching processing or zeronization processing for the multi-laser beam is performed in synchronization with the image processing signal.

Abstract translation: 图像数据由预处理单元（A）和预处理单元（B）并行预处理。 图像数据与通过对BD信号和内插信号进行OR运算而获得的图像处理信号同步传送。 与BD信号同步地执行多激光束的多个光束的激光扫描。 与图像处理信号同步地执行多激光束的颜色匹配处理或零点处理。

公开(公告)号：US08040577B2

公开(公告)日：2011-10-18

申请号：US11934217

申请日：2007-11-02

Applicant: Shigeki Akiyama

Inventor： Shigeki Akiyama

IPC: H04N1/04

CPC classification number: H04N1/047 ,  H04N1/0464 ,  H04N1/1017 ,  H04N1/12 ,  H04N1/193 ,  H04N1/32448 ,  H04N2201/02416 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: In an image reading apparatus, a retreat control device moves a conveyance target through a conveyance mechanism, when a stop operation is performed by a stop control device, in an opposite direction to an image reading direction to a position further from a restart reference position set by a position setting unit. A reading control device again moves the conveyance target, which has been moved by the retreat control device, at a constant speed in the image reading direction under a predetermined condition; inputs a line start signal to a reading unit when an offset time set by a time setting unit has elapsed from a time point when the conveyance target reaches the restart reference position; and periodically inputs a line start signal to thereby cause the reading unit to perform a reading operation from a point; where the reading unit is located when the offset time has elapsed.

Abstract translation: 在图像读取装置中，退避控制装置在通过停止控制装置执行停止操作时沿与图像读取方向相反的方向通过输送机构移动输送目标到远离重新启动基准位置组的位置 通过位置设定单元。 读取控制装置在预定条件下，在图像读取方向上以恒定的速度再次移动由退避控制装置移动的输送目标; 当从传送目标到达重新启动基准位置的时间点起经过了由时间设定单元设定的偏移时间时，将行开始信号输入到读取单元; 并且周期性地输入行开始信号，从而使读取单元从一点执行读取操作; 当偏移时间过去时读取单元位于哪里。

公开(公告)号：US20110234815A1

公开(公告)日：2011-09-29

申请号：US12732019

申请日：2010-03-25

Applicant: Martin Georg Zahnert ,  Erik Fonseka ,  Alexander Llic

Inventor： Martin Georg Zahnert ,  Erik Fonseka ,  Alexander Llic

IPC: H04N5/225

CPC classification number: H04N1/107 ,  G06F3/03543 ,  G06F3/03544 ,  G06K9/228 ,  G06K2009/2045 ,  H04N1/02805 ,  H04N1/3876 ,  H04N2201/0414 ,  H04N2201/043 ,  H04N2201/0471 ,  H04N2201/3253 ,  H04N2201/3254

Abstract: A computer peripheral that operates either as a computer mouse or as a scanner. The peripheral includes navigation sensors that generate information on motion of the device and an image array that captures successive image frames of an object being scanned. In a mouse mode, the peripheral periodically transfers readings from the navigation sensors to a computing device so that the computing device can track a position of the device. In a scanner mode, in addition to obtaining navigation information from the navigation sensors, the peripheral also captures image frames as it is moved across the object. Operation of the navigation sensors and image array may be synchronized such that an association between the image data and the navigation information may be generated and maintained as image frames are transferred to the computing device, even if some of the frames are dropped in transmission between the scanner-mouse and a computer.

Abstract translation: 作为计算机鼠标或扫描仪操作的计算机外围设备。 外围设备包括导航传感器，其产生关于设备运动的信息和捕获被扫描对象的连续图像帧的图像阵列。 在鼠标模式中，外围设备周期性地将读数从导航传感器传送到计算设备，使得计算设备可以跟踪设备的位置。 在扫描器模式中，除了从导航传感器获得导航信息之外，外围设备还在图像帧被移动穿过对象时捕获图像帧。 导航传感器和图像阵列的操作可以被同步，使得当图像帧被传送到计算设备时，可以生成和维护图像数据和导航信息之间的关联，即使在帧间的传输中丢弃了一些帧 扫描仪鼠标和计算机。

公开(公告)号：US08027073B2

公开(公告)日：2011-09-27

申请号：US12133502

申请日：2008-06-05

Applicant: Kyung Min Lim

Inventor： Kyung Min Lim

IPC: G02B5/00 ,  B41J29/12

CPC classification number: G02B26/105 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04713 ,  H04N2201/04744

Abstract: An image forming apparatus includes a light source to emit a laser beam; a resonant scanning mirror, including a reflection surface to reflect the laser beam emitted from the light source, to scan the reflected laser beam by oscillating the reflection surface; at least one detector to detect the reflected laser beam during the scanning of the reflected laser beam, and generate a synchronizing signal each time the reflected laser beam is detected; and at least one light selection unit to restrict a path over which the reflected laser beam is incident on the at least one detector to a predetermined path.

Abstract translation: 图像形成装置包括发射激光束的光源; 包括反射从光源发射的激光束的反射面的共振扫描反射镜，通过振荡反射面来扫描反射的激光束; 至少一个检测器，用于在扫描反射的激光束期间检测反射的激光束，并且在每次检测到反射的激光束时产生同步信号; 以及至少一个光选择单元，其将反射的激光束入射到所述至少一个检测器上的路径限制到预定路径。

公开(公告)号：US20110229206A1

公开(公告)日：2011-09-22

申请号：US13151993

申请日：2011-06-02

Applicant: Ryota KATO ,  Yasuo TAMARU

Inventor： Ryota KATO ,  Yasuo TAMARU

IPC: G03G15/04

CPC classification number: H04N1/047 ,  H04N1/0635 ,  H04N1/1135 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: An optical scanner used for an image-forming device to form a color image includes a plurality of photosensitive drums for superimposing a developer image formed on each of the plurality of photosensitive drums. The optical scanner includes a casing, a plurality of light sources, a deflector, an optical system, and a storage device. The plurality of light sources is provided in a one-to-one correspondence with the plurality of photosensitive drums. Each of the plurality of light source emits a laser beam. The deflector is provided in the casing for deflecting the laser beam. The optical system is provided in the casing for guiding the deflected laser beam to a corresponding one of the plurality of photosensitive drums to make the laser beam scan the corresponding one of the plurality of photosensitive drums. The storage device stores a characteristic related to the laser beam scanning the corresponding one of the photosensitive drums.

Abstract translation: 用于图像形成装置形成彩色图像的光学扫描仪包括用于叠加形成在多个感光鼓中的每一个上的显影剂图像的多个感光鼓。 光学扫描仪包括壳体，多个光源，偏转器，光学系统和存储装置。 多个光源与多个感光鼓一一对应地设置。 多个光源中的每一个发射激光束。 偏转器设置在壳体中以偏转激光束。 光学系统设置在壳体中，用于将偏转的激光束引导到多个感光鼓中的对应的一个感光鼓，以使激光束扫描多个感光鼓中的对应的一个感光鼓。 存储装置存储与激光束扫描对应的一个感光鼓有关的特性。

公开(公告)号：US20110221739A1

公开(公告)日：2011-09-15

申请号：US13042006

申请日：2011-03-07

Applicant: NARUHIRO MASUI

Inventor： NARUHIRO MASUI

IPC: G06F3/038

CPC classification number: H04N1/053 ,  G02B26/123 ,  G02B26/127 ,  G03G15/04072 ,  G06K15/1219 ,  H04N1/1135 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04772 ,  H04N2201/04774 ,  H04N2201/04775 ,  H04N2201/04784 ,  H04N2201/04789 ,  H04N2201/04793 ,  H04N2201/04794 ,  H04N2201/04798

Abstract: A pixel clock generating device includes a time interval detection unit detecting a time interval between a first signal and a second signal in each of cyclically repeating N (≧2) time periods; a comparing unit cyclically selecting a target value from N target values corresponding to the N time periods and outputting an error indicating a difference between the detected time interval and the selected target value for each of the N time periods; a frequency calculation unit correcting a frequency of the pixel clock signal based on the error and cyclically generating a frequency specification signal indicating the corrected frequency for each of the N time periods; a high-frequency clock generating unit generating a high-frequency clock signal; and a pixel clock generating unit generating a pixel clock signal based on the frequency specification signal and the high-frequency clock signal.

Abstract translation: 像素时钟发生装置包括时间间隔检测单元，其检测周期性地重复的N（≥2）个时间段中的每一个中的第一信号和第二信号之间的时间间隔; 比较单元，从与N个时段对应的N个目标值周期性地选择目标值，并且输出针对所述N个时间段中的每一个的所述检测到的时间间隔与所选择的目标值之间的差异的误差; 频率计算单元，基于所述误差校正所述像素时钟信号的频率，并且循环地生成指示所述N个时间段中的每一个的校正频率的频率指定信号; 产生高频时钟信号的高频时钟发生单元; 以及像素时钟生成单元，其基于频率指定信号和高频时钟信号生成像素时钟信号。

公开(公告)号：US20110211241A1

公开(公告)日：2011-09-01

申请号：US13023064

申请日：2011-02-08

Applicant: Kenta Ide ,  Kouji Hamachi

Inventor： Kenta Ide ,  Kouji Hamachi

IPC: G02B26/10

CPC classification number: G02B26/0858 ,  G02B26/085 ,  H04N1/053 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: The drive control device of a light scanning apparatus can be easily controlled, occurrence of overshoot can be prevented, and a scanning range of a mirror section can be adjusted in a short time. An amplitude adjusting section generates at least one of first adjusting voltage for acceleration, whose amplitude is higher than that of adjusting voltage for obtaining object amplitude, and second adjusting voltage for deceleration, whose amplitude is lower than that of the adjusting voltage for obtaining the object amplitude, and applies the same to a drive circuit for a prescribed time, to perform feedback control, when a comparing section generates an error signal, so as to cancel increase-decrease variation of the error signal.

Abstract translation: 可以容易地控制光扫描装置的驱动控制装置，可以防止发生过冲，并且能够在短时间内调整镜部的扫描范围。 振幅调整部生成振幅比用于获得被摄体振幅的调整电压高的第一加速调整电压和第二减速调整电压中的至少一个，振幅低于用于获得物体的调整电压的调整电压 振幅，并将其施加到驱动电路达规定时间，以便当比较部分产生误差信号时，执行反馈控制，以便消除误差信号的增加减小变化。

公开(公告)号：US08005321B2

公开(公告)日：2011-08-23

申请号：US11062671

申请日：2005-02-23

Applicant: Atsufumi Omori ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Dan Ozasa

Inventor： Atsufumi Omori ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Dan Ozasa

IPC: G06K7/00

CPC classification number: G02B26/127 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04781 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: A pixel clock generator that generates a pixel clock to regulate a drive timing of a scanning light source includes a data generating circuit that generates phase data based on a phase data pattern to correct an uneven scanning speed and fluctuation of scanning widths, and a pixel clock generating circuit generates a pixel clock having a long cycle based on a high-frequency clock and that performs a phase shift for the pixel clock based on the high-frequency clock. The phase pattern is set-such that difference in an amount of the phase shift between the pixel clocks adjacent to each other does not exceed a basic amount of the phase shift of the pixel clock generating circuit.

Abstract translation: 产生用于调节扫描光源的驱动定时的像素时钟的像素时钟发生器包括数据生成电路，其基于相位数据模式生成相位数据，以校正扫描速度不均匀和扫描宽度的波动，以及像素时钟 生成电路基于高频时钟生成具有长周期的像素时钟，并且基于高频时钟执行针对像素时钟的相移。 相位图案被设置为使得彼此相邻的像素时钟之间的相移量的差异不超过像素时钟产生电路的相移的基本量。