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71.发明授权
公开(公告)号：US5625183A
公开(公告)日：1997-04-29
申请号：US490572
申请日：1995-06-15
Applicant: Atsushi Kashitani , Satoshi Segawa
Inventor： Atsushi Kashitani , Satoshi Segawa
CPC classification number: H04N1/0473 , H04N1/113 , H04N1/193 , H04N2201/0436 , H04N2201/0471 , H04N2201/04755
Abstract: In a scanner unit for An overhead image scanner, a rotatably mounted mirror reflects light from a surface to be scanned off to a focusing lens to form an optical image of a scanned line on a linear image sensor. An extension arm is connected to the minor for rotation therewith. To one end of the arm is attached an electromagnetic drive system and to the other end a light reflecting member which is formed with a multiplicity of microscopically spaced apart tracks running parallel to the length of the extension arm. A laser beam spot is formed on the reflecting member and a photodiode array detects reflections therefrom to produce a plurality of output signals representative of the amounts of reflections incident on different areas of the array. The outputs of the photodiode array are processed to produce a tracking error pulse when the minor is rotated by a predetermined amount of arc and a control current is supplied to the electromagnetic drive system so that the mirror is driven at a substantially constant speed. The tracking error pulse is supplied to the linear image sensor to cause the optical image of the scanned line to be converted to an electrical signal.
Abstract translation: 在顶置图像扫描仪的扫描仪单元中，可旋转地安装的镜将来自要扫描的表面的光反射到聚焦透镜，以在线性图像传感器上形成扫描线的光学图像。 延伸臂与未成型机连接以与其一起旋转。 臂的一端安装有电磁驱动系统，另一端安装有光反射构件，该反射构件形成有平行于延伸臂的长度延伸的多个微观间隔开的轨道。 激光束点形成在反射构件上，并且光电二极管阵列检测其反射，以产生表示入射在阵列的不同区域上的反射量的多个输出信号。 处理光电二极管阵列的输出以产生跟踪误差脉冲，当小灯旋转预定量的电弧时，控制电流被提供给电磁驱动系统，使得反射镜以基本恒定的速度被驱动。 将跟踪误差脉冲提供给线性图像传感器，以将扫描线的光学图像转换成电信号。
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72.发明授权
公开(公告)号：US5541637A
公开(公告)日：1996-07-30
申请号：US99560
申请日：1993-07-30
Applicant: Tsuyoshi Ohashi , Shinichi Hirahata
Inventor： Tsuyoshi Ohashi , Shinichi Hirahata
CPC classification number: H04N1/053 , H04N1/1135 , H04N2201/0471 , H04N2201/04755 , H04N2201/04774
Abstract: An image exposure apparatus for eliminating discrepancies between the positions in the main scanning direction desired to be exposed and actually exposed by a laser beam. This may be achieved by controlling the rotational speed of the polygon mirror based on accurate rotation information. A first and second beam detectors for detecting the scanning laser beam in the main scanning direction are positioned at either side of the region of a recording medium where an image is to be formed. These detectors output signals upon detecting the laser beam. The scanning speed in the main scanning direction is calculated based on these signals. Further, deviation in speed in the main scanning direction is obtained from these signals. Rotational speed and phase information obtained about the polygon mirror using a clock signal is added to scanning speed deviation to control rotational speed of the polygon mirror. The variation in rotation of the polygon mirror may be compensated for by modulating frequency of an image clock signal according to the variation in scanning speed of the laser beam. Discrepancies may also be eliminated by timing the image signals that modulate the laser beam to compensate for variations in the speed of the polygon mirror.
Abstract translation: 一种图像曝光装置，用于消除所期望的被曝光的实际曝光的主扫描方向上的位置之间的差异。 这可以通过基于精确的旋转信息来控制多面镜的旋转速度来实现。 用于在主扫描方向上检测扫描激光束的第一和第二光束检测器位于要形成图像的记录介质的区域的任一侧。 这些检测器在检测到激光束时输出信号。 基于这些信号计算主扫描方向的扫描速度。 此外，从这些信号获得主扫描方向上的速度偏差。 使用时钟信号获得的关于多面镜的旋转速度和相位信息被添加到扫描速度偏差以控制多面镜的旋转速度。 可以通过根据激光束的扫描速度的变化来调制图像时钟信号的频率来补偿多面镜的旋转变化。 也可以通过对调制激光束的图像信号进行定时来补偿多面体镜的速度的变化来消除偏差。
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公开(公告)号：US5451777A
公开(公告)日：1995-09-19
申请号：US182488
申请日：1994-01-14
Applicant: Lawrence S. Blake , Arthur J. Bellemore , Ralph S. Hanseler , David P. Viola
Inventor： Lawrence S. Blake , Arthur J. Bellemore , Ralph S. Hanseler , David P. Viola
CPC classification number: B82Y15/00 , H04N1/0473 , H04N1/0607 , H04N1/0635 , H04N2201/0471 , H04N2201/04755
Abstract: A scanning apparatus is disclosed in an imagesetter with an internal drum recording surface, having an improved carriage system which is self-propelled and carries scanning optics for recording an image including a spin motor/mirror, a laser diode, and a focusing lens. The drive system is mounted to the carriage to allow the carriage to move linearly inside the drum as a self-propelled direct drive. An electronic control device mounted on the carriage provides precision motion control of the carriage.
Abstract translation: 在具有内鼓记录表面的成像器中公开了一种扫描装置，其具有自推进的改进的托架系统，并且携带用于记录包括旋转马达/反射镜，激光二极管和聚焦透镜的图像的扫描光学器件。 驱动系统安装到滑架上，以允许滑架作为自推进的直接驱动器在滚筒内线性移动。 安装在滑架上的电子控制装置提供滑架的精确运动控制。
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74.发明授权Method and circuit for driving an electromechanical device rapidly with great precision 失效快速，准确地驱动机电装置的方法和电路
公开(公告)号：US5257041A
公开(公告)日：1993-10-26
申请号：US722753
申请日：1991-06-28
Applicant: John M. Kresock , David M. Orlicki , Jasper S. Chandler , Timothy E. Neale
Inventor： John M. Kresock , David M. Orlicki , Jasper S. Chandler , Timothy E. Neale
CPC classification number: G05B19/40 , G06K15/1219 , H04N1/053 , H04N1/1135 , H04N2201/0471 , H04N2201/04755 , H04N2201/04774 , H04N2201/04786
Abstract: An improved method of, and electrical circuit for driving with precision and accuracy an electro-mechanical device such as a galvanometer is disclosed. The method precisely controls high speed linear scanning of the device in a forward scan segment of each cycle of operation, and further provides very fast re-set of the device without position overshoot during a re-trace segment of a cycle. The electrical circuit includes memory means for generating an electrical command waveform for controlling the device during each cycle of operation, and drive servo means for applying electrical power to the device. The servoing action of this circuit substantially eliminates any difference between an actual position of the device and the position directed by the command waveform during each forward scan segment of a cycle of operation, with the result that each forward scan segment is highly accurate and repeatable. During each re-trace segment of a cycle the circuit re-sets the device at high speed in a way that limits accuracy destroying effects of device overshoot and oscillation.
Abstract translation: 公开了一种电动机械装置如电流计的改进的精密和准确的驱动方法和电路。 该方法精确地控制在每个操作周期的正向扫描段中的器件的高速线性扫描，并且在循环的重新跟踪段期间进一步提供非常快速的重新设置器件而没有位置过冲。 电路包括用于在每个操作周期期间产生用于控制装置的电气命令波形的存储装置，以及用于向装置施加电力的驱动伺服装置。 该电路的伺服动作基本上消除了在操作周期的每个正向扫描段期间设备的实际位置和由指令波形指示的位置之间的任何差异，结果是每个前向扫描段是高精度和可重复的。 在循环的每个重新跟踪段期间，电路以高速重新设置器件，以限制精度破坏器件过冲和振荡的影响。
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公开(公告)号：US5164845A
公开(公告)日：1992-11-17
申请号：US724466
申请日：1991-06-27
Applicant: Yukitoshi Takeuchi
Inventor： Yukitoshi Takeuchi
CPC classification number: H04N1/40056 , G03G15/04 , H04N1/0473 , H04N1/1013 , H04N1/193 , H04N2201/04748 , H04N2201/04755
Abstract: Picture reading equipment having a reader for reading an image of the original, moving unit for moving an image reading position of said reader, and a driver for supplying a driving signal to said moving unit. The feed timing of the driving signal is so controlled that vibration of said driver and scanning system is reduced and a picture of high quality is obtained even when interruption/resumption of reading occurs during reading of an image.
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Patent Agency Ranking76.发明授权Scanning device having a memory for storing driving steps for a stepping motor 失效具有用于存储步进电机的驱动步骤的存储器的扫描装置
公开(公告)号：US5151640A
公开(公告)日：1992-09-29
申请号：US607049
申请日：1990-10-31
Applicant: Masahiro Sakamoto , Junnosuke Kataoka
Inventor： Masahiro Sakamoto , Junnosuke Kataoka
CPC classification number: H04N1/0405 , H02P8/14 , H04N1/0402 , H04N1/0417 , H04N1/393 , H04N2201/04755
Abstract: A scanning device comprises: a stepping motor; a memory device for storing drive data for driving the stepping motor for each scanning unit which does not correspond to each drive step of the stepping motor; and a motor driving device for driving the stepping motor in accordance with the drive data read from the memory device.
Abstract translation: 扫描装置包括：步进马达; 存储装置，用于存储用于驱动与步进电机的每个驱动步骤不对应的每个扫描单元的步进电机的驱动数据; 以及用于根据从存储装置读取的驱动数据来驱动步进马达的马达驱动装置。
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公开(公告)号：US5117374A
公开(公告)日：1992-05-26
申请号：US419302
申请日：1989-10-10
Applicant: Howard V. Goetz
Inventor： Howard V. Goetz
CPC classification number: G06K15/105 , B41J19/207 , G06K15/02 , H04N1/1912 , G06K2215/101 , G06K2215/111 , H04N2201/0468 , H04N2201/0471 , H04N2201/04755
Abstract: Print heads are formed with spaced subheads having nozzles such that all of the lines or pixel rows on a print medium such as a sheet of paper are printed by scanning of the print head along the face of the sheet. The head structures include three subheads, each having nozzles for printing one or more adjacent lines with the subheads being spaced the same number of lines apart as the number of lines each prints; and three subheads spaced the equivalent of seven lines apart, each subhead having three nozzles spaced at the equivalent of alternate lines. The heads are advanced between scans by an equivalent number of lines generally equal to the number of nozzles in the head, whereby all print lines are addressed only once. Apparatus for printing includes the use of pointers in registers to keep track of head structure and location on a print medium for calculating print addresses. A partial page memory is used which wraps around to the beginning from the end. A positive printer carriage position encoder uses an index marker located in the middle of a strip of incremental markers. Sensing of the index marker resets an up/down counter with a value that gives a positive value for all count conditions.
Abstract translation: 打印头形成有具有喷嘴的间隔子头，使得诸如一张纸的打印介质上的所有行或像素行通过沿着纸张的表面扫描打印头来打印。 头部结构包括三个子头部，每个分针头具有用于打印一个或多个相邻线的喷嘴，其中子头部分隔开与每个打印线数相同的相同数量的线; 和三个分水平分隔相当于七行的分水头，每个分水头具有三个喷嘴，间隔相当于交替线。 头部在扫描之间通过相当数量的通常等于头部中的喷嘴数目的线进行，由此所有打印线仅被寻址一次。 用于打印的装置包括在寄存器中使用指针来跟踪打印介质上的打印头结构和位置以计算打印地址。 使用部分页面存储器从最后开始包围。 正打印机托架位置编码器使用位于增量标记条的中间的索引标记。 索引标记的检测使用给所有计数条件的正值的值来复位上/下计数器。
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公开(公告)号：US5095372A
公开(公告)日：1992-03-10
申请号：US458870
申请日：1989-12-29
Applicant: Morton Silverberg
Inventor： Morton Silverberg
CPC classification number: H04N1/00254 , G03G15/221 , H04N1/0473 , H04N1/32496 , G03G15/0435 , H04N1/1013 , H04N1/193 , H04N2201/04755
Abstract: A combined copy machine and fax signal production device wherein the scanning system of the copy machine is employed to direct stray light from a document being scanned to a second lens, without displacing the copy lens. The second lens images the document on a linear photoreceptor array, such as a CCD. A control system produces fax signals from the output of the linear array, and may also control the scanning speed of the apparatus to be optimum for the generation of fax signals.
Abstract translation: 一种组合的复印机和传真信号生产装置，其中采用复印机的扫描系统将来自被扫描的文件的杂散光引导到第二透镜，而不移动复印透镜。 第二透镜将文档成像在诸如CCD的线性感光体阵列上。 控制系统从线性阵列的输出产生传真信号，并且还可以控制装置的扫描速度，以便产生传真信号。
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公开(公告)号：US5091789A
公开(公告)日：1992-02-25
申请号：US707963
申请日：1991-05-22
Applicant: Satoshi Haneda , Masakazu Fukuchi , Hisashi Shoji
Inventor： Satoshi Haneda , Masakazu Fukuchi , Hisashi Shoji
CPC classification number: H04N1/0405 , H04N1/0402 , H04N1/0443 , H04N1/508 , H04N1/1135 , H04N1/12 , H04N2201/04755
Abstract: The invention provides an apparatus for forming a latent image on a photoreceptor. In the apparatus, there are provided an image reader including a scanning device for performing a reciprocal movement along an original document, a reading device for reading an image on the original document and for outputting an image signal in the outward movement of the scanning device, and a memory for storing the image signal; and an image writing device for writing a latent image on the photoreceptor. The image writing device has a first writing mode in which a latent image corresponding to the image signal outputted from the reading device is written in synchronization with the outward movement of the scanning device, and a second writing mode in which a latent image corresponding to the image signal outputted from the memory is written. The scanning device is adapted to perform the backward movement in the second writing mode.
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公开(公告)号：US5032929A
公开(公告)日：1991-07-16
申请号：US604643
申请日：1990-10-29
Applicant: Junichi Asano , Yoshio Tabata , Norio Kanemitsu
Inventor： Junichi Asano , Yoshio Tabata , Norio Kanemitsu
CPC classification number: H04N1/3263 , H04N1/0473 , H04N1/32609 , H04N1/32667 , H04N1/1013 , H04N1/193 , H04N2201/0414 , H04N2201/04755
Abstract: A document reading device suitable for use for a personal computer, a facsimile, and a work station or the like, and comprises a reading means for reading the image information provided on a manuscript, a read controlling means for controlling the reading means in such a way that when the reading operation of the reading means is interrupted while reading said manuscript, a predetermined amount of the image information read by the reading means immediately before said interruption occurred, can be reread after the reading operation is restarted, and a processing means for processing both groups of the image information duplicately read by the reading means before and after the interruption thereof, respectively, by modifying them in such a way that a portion of the image information finally output and based upon the image information read by the reading means before the interruption, and another portion of the image information finally output and based upon the image information read by the reading means after the interruption, can be connected to form a continuous configuration. By using this device, an unnatural configuration of reproduced image caused by the interruption of the reading operation and by the restart thereof, can be eliminated.
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