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公开(公告)号：US5255351A
公开(公告)日：1993-10-19
申请号：US835898
申请日：1992-02-14
CPC分类号： G06F1/025 , H04N1/4056
摘要： A pulse-width modulation device for controlling shapes of dots printed out by a printer by regulating shapes of pulses of pulse-width modulation signals, which respectively represent gray levels of pixels of input image, according to code signals respectively indicating shapes of pulses of pulse-width modulation signals, each of which has a duration composed of time slots respectively corresponding to bits of image data representing a gray level of a pixel. The pulse-width modulation device is provided with a code converter for converting image data corresponding to each pixel of an input image into a predetermined code indicating a shape of a pulse of a corresponding pulse-width modulation signal and for outputting a code signal representing the predetermined code. The indicated shape of the pulse is formed by making the corresponding pulse modulation signal have a high level at a predetermined number of time slots thereof, which are serially counted from the time slot corresponding to the most significant bit of the image data or from the time slot corresponding to the least significant bit of the image data according to a gray level of each pixel. The pulse-width modulation device is further provided with a pulse generating circuit for receiving the code signal and for generating the pulse of the predetermined pulse-width modulation signal according to the code in response to a predetermined clock signal.
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62.发明授权
公开(公告)号：US5226029A
公开(公告)日：1993-07-06
申请号：US525400
申请日：1990-05-16
摘要： An electric charge recording/reproducing apparatus for focusing an electromagnetic radiation ray containing a recording object information signal onto a photoconductive layer member (PCL) in an electric charge image recording medium (D) comprising a laminate of at least an electric charge retention layer, member (CHL), photoconductive layer member (PCL) and a first electrode (E) using an objective lens (318) which is driven and displaced in an optical axis direction by an actuator (ACT) of an automatic focusing system; and to integratedly connect and fix a moving electrode (Em) onto the objective lens (318), the moving electrode (Em) being intended to generate an electric field for positioning the electric charge image recording medium (D) in the electric field of a predetermined electric field intensity, towards the electrode in, the electric charge image recording medium (D). The electric charge image recording medium (D) composed of a laminate of at least a first electrode (E), a photoconductive layer member (PCL), an optical modulation layer member (PML) and an electric charge retention layer member (CHL), the electric charge recording medium comprising said electric charge retention layer member (CHL) provided with an electric charge image pattern for tracking control recorded and formed.
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公开(公告)号：US4977417A
公开(公告)日：1990-12-11
申请号：US450772
申请日：1989-12-14
申请人： Itsuo Takanashi , Toshikatsu Ichitou , Hiroki Kitamura , Takashi Yamamura , Koubun Sakagami , Atsushi Nakano
发明人： Itsuo Takanashi , Toshikatsu Ichitou , Hiroki Kitamura , Takashi Yamamura , Koubun Sakagami , Atsushi Nakano
CPC分类号： G03G13/22 , G03G15/04 , G03G15/0435
摘要： An electrophotography system for use in laser printers, printing machines and copying machines. The system includes a rototable drum having a photosensitive member which can take a first absorption spectrum state and a second absorption spectrum state, the variation from the first absorption spectrum state to the second absorption spectrum state being made by illuminating it with light whose intensity is above a predetermined threshold and whose wavelength is in a first predetermined wavelength region. Also included is an optical system including a light-emitting device for illumination of the photosensitive member so as to form thereon an electrostatic latent image, the optical system being arranged to directly illuminate the photosensitive member with light from the light-emitting device and further to illuminate it with reflected light from an original picture. The light-emitting device is arranged to emit light whose wavelength is in the first predetermined wavelength region and further light whose wavelength is in a second predetermined wavelength region. A control unit performs one selected from a laser-printing mode, a printing mode and a copying mode so as to form the corresponding electrostatic latent image on the photosensitive member by lights which are different in intensity and wavelength from each other.
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公开(公告)号：US4615953A
公开(公告)日：1986-10-07
申请号：US706163
申请日：1985-02-27
CPC分类号： C04B35/63 , B22D41/02 , C04B35/66 , C04B2111/00155 , C04B2111/00612 , C04B2111/0087 , C04B2235/3206 , C04B2235/3208 , C04B2235/3418 , C04B2235/3463 , C04B2235/9676
摘要： The present invention provides an improved lining structure composition on the inner surface of a tundish by forming an alumina-silica-base intermediate lining layer over which a magnesian surface coating layer is formed by gunning. It solves the adhesion defect on a refractory lining of the tundish and enables longer operation of the tundish.
摘要翻译： 本发明通过形成氧化铝 - 二氧化硅 - 基础中间衬层，在中间包的内表面上提供改进的衬里结构组合物，通过喷涂形成氧化镁表面涂层。 它解决了中间包耐火衬里的粘合缺陷，使中间包能够更长时间的运行。
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公开(公告)号：USD267714S
公开(公告)日：1983-01-25
申请号：US166781
申请日：1980-07-07
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公开(公告)号：US4360907A
公开(公告)日：1982-11-23
申请号：US257165
申请日：1981-04-24
申请人： Takashi Yamamura
发明人： Takashi Yamamura
CPC分类号： G11B17/049 , G11B23/0328
摘要： A reproducing apparatus reproduces a disc-shaped recording medium which is accommodated within a case. The case comprises a jacket which has a space for accommodating the disc-shaped recording medium and an opening for allowing the disc-shaped recording medium to go in and out of the jacket, and a lid member inserted through the opening of the jacket for closing the opening of the jacket. The reproducing apparatus comprises an inserting opening part through which the case is inserted into the reproducing apparatus a turntable for rotating the disc-shaped recording medium, a clamping mechanism for clamping at least one of the disc-shaped recording medium or the lid member provided at the innermost part on the opposite side from the inserting opening part with respect to the turntable a pair of guide rails provided extending between a position of the inserting opening part and a position at an innermost part of the reproducing apparatus, at right and left sides of a moving passage of the case, and slider mechanisms inserted with the pair of guide rails therethrough. The slider mechanisms are freely slidable along the pair of guide rails, and engages with the case and moves in response to the inserting and pulling out operation of the case. The slider mechanism has main slider bodies respectively inserted with the pair of guide rails therethrough, and has arm portions which oppose the upper and lower surfaces of the guide rails, and rollers provided at the arm portions of the main slider body, where the rollers roll over the guide rails.
摘要翻译： 再现装置再现容纳在壳体内的盘状记录介质。 壳体包括具有用于容纳盘形记录介质的空间和用于允许盘形记录介质进出外壳的开口的外壳，以及插入穿过外壳的开口以关闭的盖构件 外套的开口。 再现装置包括插入开口部分，壳体通过该插入开口部分插入到再现装置中，用于旋转盘形记录介质的转盘;夹持机构，用于夹持设置在盘形记录介质上的盘形记录介质或盖构件中的至少一个 相对于转台在与插入开口部相对的相对侧的最内部，设置有在插入开口部的位置和再现装置的最内部位置之间延伸的一对导轨，左右两侧 壳体的移动通道，以及通过其插入的一对导轨的滑块机构。 滑块机构可以沿着一对导轨自由滑动，并且与外壳接合并响应于壳体的插入和拉出操作而移动。 滑块机构具有分别插入有一对导轨穿过的主滑块主体，并且具有与导轨的上表面和下表面相对的臂部，以及设置在主滑块主体的臂部处的辊，辊滚动 在导轨上。
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