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公开(公告)号：US6336019B2
公开(公告)日：2002-01-01
申请号：US45037599
申请日：1999-11-29
Applicant: XEROX CORP
Inventor： CASTELLI VITTORIO , WOLF BARRY , LOFTHUS ROBERT , ANDERSON HAROLD
CPC classification number: H04N1/0473 , G03G15/0152 , G03G15/0168 , G03G2215/0161 , G03G2215/017 , H04N1/12 , H04N2201/04712 , H04N2201/04722 , H04N2201/04734
Abstract: Systems and methods are provided that improve the registration between the color separation images. The systems and methods control the output of the image data for one or more of the color separation images and the velocity of an image-carrying member to remove or reduce registration offsets based on determined position and velocity of the image-carrying member. A position-determining sensor on an image-carrying member device module is used to determine the process-direction position of the image-carrying member to provide real time motion information by simultaneously sensing a plurality of position-determining marks. A position-determining controller determines the process-direction position of the image-carrying member by detecting the plurality of position-determining marks using the position-determining sensor and averaging or correlating the detected data.
Abstract translation: 提供了改善颜色分离图像之间的配准的系统和方法。 系统和方法基于图像承载构件的确定的位置和速度来控制一个或多个颜色分离图像的图像数据的输出和图像承载构件的速度，以移除或减少对准偏移。 使用图像承载构件装置模块上的位置确定传感器来确定图像承载构件的处理方向位置，以通过同时感测多个位置确定标记来提供实时运动信息。 位置确定控制器通过使用位置确定传感器检测多个位置确定标记来确定图像载体的处理方向位置，并对检测到的数据进行平均或相关。
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公开(公告)号：BR0006331A
公开(公告)日：2001-07-17
申请号：BR0006331
申请日：2000-11-29
Applicant: XEROX CORP
Inventor： CASTELLI VITTORIO , WOLF BARRY , LOFTHUS ROBERT M , ANDERSON HAROLD
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公开(公告)号：DE69122058T2
公开(公告)日：1997-02-20
申请号：DE69122058
申请日：1991-12-12
Applicant: XEROX CORP
Inventor： DEJONG JOANNES N M , RICCIARDELLI JOHN J , LEAN MENG H , SCHWEID STUART A , WOLF BARRY , LOFTHUS ROBERT M
Abstract: An inductive-type rotary encoder (2) capable of generating an output signal indicative of the angular position of a rotor (4) to a stator (6) is disclosed. The rotary encoder (2) includes a stator (6) having at least one conductive pattern on one side thereof, and a rotor (4) having another conductive pattern on one side thereof which faces the at least one conductive pattern of the stator (6). The conductive patterns are inductively coupled to one another so as to generate an output signal indicative of the angular position of the rotor (4) relative to the stator (6). In order to reduce the overall size and number of parts required, the circuitry for energizing the stator conductive pattern(s) and for generating the output signal can be provided on a printed circuit board, the opposite side of which contains the at least one stator conductive pattern. In order to reduce noise as well as to reduce the first harmonic error, lead lines for attaching the stator and rotor conductive patterns to the controlling circuitry and a return line which extends along substantially the entire length of the rotor or stator conductive patterns and attaches to one of the lead lines are provided and specially located relative to undulations of the conductive patterns. Additionally, the length of spokes which define undulations of the respective rotor and stator conductive patterns can be controlled to improve the performance of the rotary encoder. A rotary encoder (2) including inductively coupled rotor and stator conductive patterns for generating a relative angular position (or rotary speed) of the rotor (4) relative to the stator (6), as well as stator and rotor index pulse patterns inductively coupled for generating an index pulse once per revolution of the rotor relative to the stator is also provided.
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公开(公告)号：DE60017533T2
公开(公告)日：2006-03-30
申请号：DE60017533
申请日：2000-11-24
Applicant: XEROX CORP
Inventor： CASTELLI VITTORIO , LOFTHUS ROBERT M , WOLF BARRY , ANDERSON HAROLD
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公开(公告)号：DE69122058D1
公开(公告)日：1996-10-17
申请号：DE69122058
申请日：1991-12-12
Applicant: XEROX CORP
Inventor： DEJONG JOANNES N M , RICCIARDELLI JOHN J , LEAN MENG H , SCHWEID STUART A , WOLF BARRY , LOFTHUS ROBERT M
Abstract: An inductive-type rotary encoder (2) capable of generating an output signal indicative of the angular position of a rotor (4) to a stator (6) is disclosed. The rotary encoder (2) includes a stator (6) having at least one conductive pattern on one side thereof, and a rotor (4) having another conductive pattern on one side thereof which faces the at least one conductive pattern of the stator (6). The conductive patterns are inductively coupled to one another so as to generate an output signal indicative of the angular position of the rotor (4) relative to the stator (6). In order to reduce the overall size and number of parts required, the circuitry for energizing the stator conductive pattern(s) and for generating the output signal can be provided on a printed circuit board, the opposite side of which contains the at least one stator conductive pattern. In order to reduce noise as well as to reduce the first harmonic error, lead lines for attaching the stator and rotor conductive patterns to the controlling circuitry and a return line which extends along substantially the entire length of the rotor or stator conductive patterns and attaches to one of the lead lines are provided and specially located relative to undulations of the conductive patterns. Additionally, the length of spokes which define undulations of the respective rotor and stator conductive patterns can be controlled to improve the performance of the rotary encoder. A rotary encoder (2) including inductively coupled rotor and stator conductive patterns for generating a relative angular position (or rotary speed) of the rotor (4) relative to the stator (6), as well as stator and rotor index pulse patterns inductively coupled for generating an index pulse once per revolution of the rotor relative to the stator is also provided.
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Patent Agency Ranking
公开(公告)号：DE69917511T2
公开(公告)日：2005-06-02
申请号：DE69917511
申请日：1999-02-18
Applicant: XEROX CORP
Inventor： RAI SUDHENDU , JACKSON WARREN B , BIEGELSEN DAVID K , WOLF BARRY
Abstract: A method of controlling the movement of copy sheets along a copy sheet path by providing a target by a high level controller (200) for the movement of copy sheets within the copy sheet path and controlling movement of copy sheets within segments of the copy sheet path. Movement in each segment is controlled by subcontrollers (202-210) activating segment drives. Feedback data are conveyed to the high level controller (200) and to other subcontrollers on the movement of copy sheets within segments of the copy sheet path and copy sheet movement is adjusted by the copy sheet drives of selected segments of the copy sheet path in order to achieve the target.
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公开(公告)号：DE60017533D1
公开(公告)日：2005-02-24
申请号：DE60017533
申请日：2000-11-24
Applicant: XEROX CORP
Inventor： CASTELLI VITTORIO , LOFTHUS ROBERT M , WOLF BARRY , ANDERSON HAROLD
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公开(公告)号：DE69917511D1
公开(公告)日：2004-07-01
申请号：DE69917511
申请日：1999-02-18
Applicant: XEROX CORP
Inventor： RAI SUDHENDU , JACKSON WARREN B , BIEGELSEN DAVID K , WOLF BARRY
Abstract: A method of controlling the movement of copy sheets along a copy sheet path by providing a target by a high level controller (200) for the movement of copy sheets within the copy sheet path and controlling movement of copy sheets within segments of the copy sheet path. Movement in each segment is controlled by subcontrollers (202-210) activating segment drives. Feedback data are conveyed to the high level controller (200) and to other subcontrollers on the movement of copy sheets within segments of the copy sheet path and copy sheet movement is adjusted by the copy sheet drives of selected segments of the copy sheet path in order to achieve the target.
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公开(公告)号：JP2002240377A
公开(公告)日：2002-08-28
申请号：JP2002012000
申请日：2002-01-21
Applicant: XEROX CORP
Inventor： CASTELLI VITTORIO , DEJONG JOANNES N M , WILLIAMS LLOYD A , WOLF BARRY , ANDERSON HAROLD M
Abstract: PROBLEM TO BE SOLVED: To perform accurate positional control of a printer with respect to a paper without requiring an expensive encoder in an imaging system employing multiscan printing. SOLUTION: An imaging system 100 comprises a paper handling surface 110 having an uneven mark 250 intersecting the axis and moving a paper 120 in a direction substantially parallel with the axis, a carriage 130 mounted slidably on the paper handling surface 110 and adapted to contain a printer 140 sliding in a direction substantially orthogonal to the axis and parallel with the paper handling surface 110, and an optical sensor 200 arranged to be disposed in the axial direction during movement of the paper handling surface 110 and to detect movement of the paper handling surface 110 relative to the carriage 130 by monitoring the mark 250.
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公开(公告)号：JP2001222200A
公开(公告)日：2001-08-17
申请号：JP2000362007
申请日：2000-11-29
Applicant: XEROX CORP
Inventor： CASTELLI VITTORIO , WOLF BARRY , LOFTHUS ROBERT M , ANDERSON HAROLD
Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for improving alignment between color resolved images. SOLUTION: By controlling the output of image data and the speed of an image carrying member for every one or more color resolved images based on the measured position and speed of the image carrying member, the deviation of the alignment is eliminated or reduced. A position measuring sensor 352 on an image carrying member device module is used to measure the position of the image carrying member in a processing direction and provides movement information in real time. A position measuring controller 248 detects the pattern of a position measuring mark by using the sensor 352 and processes the data detected by averaging and correlating in order to eliminate a detection error, whereby the position of the image carrying member in the processing direction is decided.
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