专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US5121223A Method and apparatus for generating a binary representation of an image 失效
标题翻译：用于生成图像的二进制表示的方法和装置
公开(公告)号：US5121223A
公开(公告)日：1992-06-09
申请号：US537734
申请日：1990-06-14
申请人： Malcolm D. M. Roe
发明人： Malcolm D. M. Roe
IPC分类号： H04N1/48 , G06T5/00 , H04N1/405 , H04N1/46 , H04N1/52
CPC分类号： H04N1/4055
摘要： A method for generating a binary representation of an image represented in half-tone form is described in which the image is scanned and sampled, and in which each pixel corresponding to a sample of the image is assigned one of two colors. The method comprises, for each group of abutting and non-overlapping sampled pixels, determining the number of pixels in the group which are to be assigned to each of the two colors (step 13); allocating a unique sequence to the pixels (step 15); and assigning one of the two colors to pixels in sequential order until the predetermined number of pixels of that color has been assigned (step 16) and thereafter assigning the other color to the remaining pixels in the group (step 17).

42. 发明授权

US3783293A Register control systems 失效
标题翻译：寄存器控制系统
公开(公告)号：US3783293A
公开(公告)日：1974-01-01
申请号：US3783293D
申请日：1972-03-10
申请人： CROSFIELD ELECTRONICS LTD
发明人： GOLD D , CLINTON G
IPC分类号： B41F33/14 , B41F33/00 , B65H23/188 , G05F1/10 , H01J39/12
CPC分类号： B65H23/1882
摘要： In a method of register control two or more register marks, corresponding to different operations performed on the web, are printed on the web, one behind the other in a track extending in the direction of travel of the web, the marks being separated from one another by a predetermined distance when register is correct. A mark is recognised when a photocell signal indicates clear space in the track for a predetermined distance (longer than the nominal separation between the marks) followed by the leading mark. It may also be required for recognition that the mark thickness is less than a given amount and that the mark is followed by at least a predetermined length of clear space. When a mark is recognition, a register comparison is made between the positions in the track of the leading mark and the next mark. The circuit discriminator against others print in the track and other register marks behind the two compared marks.
摘要翻译：在寄存器控制的方法中，对应于在纸幅上执行的不同操作的两个或更多对准标记被印刷在幅材上，一个在另一个上沿着在幅材行进方向上延伸的轨迹中，标记与一个另一个在寄存器正确时以预定的距离。当光电信号在轨道上指示预定距离（长于标记之间的标称间隔）后面是前导标记的空白时，识别标记。也可能需要识别标记厚度小于给定量，并且标记之后是至少预定长度的清晰空间。当标记被识别时，在前导标记的轨迹中的位置和下一个标记之间进行寄存器比较。电路鉴别器与其他打印在轨道上的其他寄存器标记在两个对比标记后面。

43. 发明授权

US3634619A Remanent image erasure for rapid successive exposures 失效
标题翻译：用于快速成像曝光的备用图像擦除
公开(公告)号：US3634619A
公开(公告)日：1972-01-11
申请号：US3634619D
申请日：1969-07-22
申请人： CROSFIELD ELECTRONICS LTD
发明人： ASTLEY EDWARD THOMAS
IPC分类号： H04N5/228 , H01J31/48
CPC分类号： H04N5/2286
摘要： In apparatus employing an image orthicon, when a signal corresponding to the image focused on the orthicon has been obtained by scanning the target of the orthicon, the photocathode is evenly flooded with light and at the same time the relative photocathode, accelerator and target potentials are such that photocathode electrons arrive at the target at an energy level at which they do not cause secondary emission but are absorbed by parts of the target on which positive charge remains. This removes any remanent image, permitting the image orthicon to be used for different images in rapid succession.
摘要翻译：在采用图像像元的装置中，当通过扫描该对象的目标已经获得了与聚焦在该圆锥上的图像相对应的信号时，该光电阴极被均匀地充满光，同时相对光电阴极，加速器和目标电位为使得光电阴极电子在它们不引起二次发射的能级处到达目标，但被残留有正电荷的靶的部分吸收。这将删除任何残留的图像，允许图像orthicon快速连续地用于不同的图像。

44. 发明授权

US3634611A Catchlight control in image reproduction systems 失效
标题翻译：图像重现系统中的控制
公开(公告)号：US3634611A
公开(公告)日：1972-01-11
申请号：US3634611D
申请日：1969-11-12
申请人： CROSFIELD ELECTRONICS LTD
发明人： PUGSLEY PETER C , DOBOUNEY MOUAYED EDOUARD
IPC分类号： G03F3/08 , H04N1/60 , H04N1/46
CPC分类号： H04N1/6027
摘要： To reproduce colored images, color component signals generated by scanning an original are color corrected and then tone corrected and used to control the exposure of a sensitive surface. ''''Catchlights'''' are reproduced on an extended and nonlinear portion of the tone correction characteristic. To prevent the reproduction on this portion of the characteristic of signals which do not correspond to catchlights but which, through overcorrection in the color correction circuits, have a similar signal level, a catchlight detector circuit is connected in parallel with the color correction circuit so as to receive uncorrected color component signals and to modify the response of the tone correction circuit to a signal from the color correction circuit in the presence of a catchlight signal from the catchlight detector.
摘要翻译：为了再现彩色图像，通过对原稿进行扫描生成的颜色分量信号进行颜色校正，然后进行色调校正，并用于控制敏感表面的曝光。在色调校正特性的扩展和非线性部分上再现“Catchlights”。为了防止在这一部分对不同于聚光灯的信号的特性进行再现，而通过颜色校正电路中的过度校正具有相似的信号电平，将聚光灯检测器电路与彩色校正电路并联连接，以便接收未校正的颜色分量信号，并且在存在来自聚光灯检测器的聚光灯信号的情况下，修正色调校正电路对来自颜色校正电路的信号的响应。

45. 发明授权

US3529521A Photographic type composing 失效
标题翻译：摄影类型组合
公开(公告)号：US3529521A
公开(公告)日：1970-09-22
申请号：US3529521D
申请日：1967-06-30
申请人： CROSFIELD ELECTRONICS LTD
发明人： ASTLEY EDWARD T
IPC分类号： B41B17/10 , B41B19/01 , B41B27/28 , B41B19/00
CPC分类号： B41B17/10 , B41B19/01 , B41B27/28

46. 发明授权

US3497121A Register control systems 失效
标题翻译：寄存器控制系统
公开(公告)号：US3497121A
公开(公告)日：1970-02-24
申请号：US3497121D
申请日：1968-03-13
申请人： CROSFIELD ELECTRONICS LTD
发明人： GOLD DANIEL , BENT DENNIS HERBERT
IPC分类号： B41F13/02 , B65H23/00
CPC分类号： B41F13/025

47. 发明授权

US3331026A Electronic trigger circuit peak detecting and inhibiting means 失效
标题翻译：电子触发电路峰值检测和抑制手段
公开(公告)号：US3331026A
公开(公告)日：1967-07-11
申请号：US34807464
申请日：1964-02-28
申请人： CROSFIELD ELECTRONICS LTD
发明人： NORMAN PARKER BARRY
IPC分类号： G06K9/38 , H03K5/1532
CPC分类号： G06K9/38 , H03K5/1532

48. 发明授权

US3232548A Control of splicing preprinted webs 失效
标题翻译：拼接预印网的控制
公开(公告)号：US3232548A
公开(公告)日：1966-02-01
申请号：US30134463
申请日：1963-08-12
申请人： CROSFIELD ELECTRONICS LTD
发明人： HERBERT BENT DENNIS , LAWRENCE KING DANIEL , THOMAS ASTLEY EDWARD , ARTHUR KIRK SIDNEY
IPC分类号： B65H19/18 , B65H21/02 , B65H23/188
CPC分类号： B65H23/1886 , B65H19/181 , B65H21/02 , B65H23/1882

49. 发明授权

US3209070A Colour reproduction systems 失效
标题翻译：色彩再现系统
公开(公告)号：US3209070A
公开(公告)日：1965-09-28
申请号：US11445061
申请日：1961-06-02
申请人： CROSFIELD ELECTRONICS LTD
发明人： HARRY MAWBY DAVID
IPC分类号： H04N1/60
CPC分类号： H04N1/6022

50. 发明授权

US3178173A Sheet-feeding apparatus 失效
标题翻译：送纸装置
公开(公告)号：US3178173A
公开(公告)日：1965-04-13
申请号：US35049564
申请日：1964-03-09
申请人： CROSFIELD ELECTRONICS LTD
发明人： GABOR KALMAN PETER
IPC分类号： B65H3/10 , B65H3/46 , B65H3/50 , B65H3/54 , B65H3/56
CPC分类号： B65H3/46 , B65H3/10 , B65H3/50 , B65H3/54 , B65H3/56 , B65H2701/1912 , B65H2701/1916

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式