Patents Assigned to Peking University Founder R&D Center
  • Patent number: 9552435
    Abstract: The present application discloses methods and systems for incrementally collecting replies in a forum and belongs to the technical field of collecting network information. The method comprises periodically determining whether there is a newly-established post and a post having new replies in all forum list pages needed to be collected: if yes, extracting a main post and reply information from the newly-established post, and extracting the information of the new replies from the post having new replies. The system comprises a determining device (11) for periodically determining whether there is a newly-established post and a post having new replies in all forum list pages needed to be collected; and an extracting device (12) for extracting a main post and reply information from the newly-established post, and extracting the information of the new replies from the post having new replies.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: January 24, 2017
    Assignees: Peking University Founder Group Co., Ltd., Peking University Founder R & D Center, Beijing Founder Electronics Co., Ltd., Peking University
    Inventors: Xinli Wu, Jianwu Yang
  • Patent number: 9519718
    Abstract: The present application provides web information detecting method and system. The method according to the present application comprises: pre-extracting keywords from a web page; storing a corresponding relationship between the extracted keywords and a URL of the web page in a database; obtaining a source file of a web page to be detected; searching the database for keywords that have the same URL as that of the web page to be detected; comparing the searched keywords to the source file information of the web page to be detected; and determining the existence of information of the web page to be detected according to a matching degree. The present application increases the accuracy of web information detection.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 13, 2016
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R & D Center
    Inventors: Song Wang, Rufeng Liang, Dan Zhang, Hong'e Sun, Jianwu Yang, Xinli Wu
  • Patent number: 9278519
    Abstract: The present invention provides a control system for use in digital printing, comprising: a host; multiple main control boards connected to the host, multiple sets of nozzle plates, wherein each set of nozzle plate respectively is connected to one main control board and to one set of nozzle. The present invention also provides a control method for use in digital printing, comprising: the host decomposing a job into multiple portions, and distributing each portion of the job to one main control board; the main control boards concurrently converting received portions of the job into pages and distributing the pages to a set of nozzle plates connected thereto; the nozzle plates converting the pages into printing data and driving the nozzle sets connected to the nozzle boards to print the printing data thereof. The present invention achieves the effect of improving processing performance of the control system.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: March 8, 2016
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R&D Center
    Inventors: Dan Li, Shaowei Guo, Xiaohui Wen, Zhihong Liu
  • Patent number: 9218551
    Abstract: The application discloses a method and an apparatus for rasterizing a page digital image. The method comprises steps of parsing a page digital image to obtain basic information, position information and rasterization information of the image, with the basic information including image data, image type, a width, height and bit depth of the image (S10); decoding data encoding type to obtain the image data and saving the image data into a buffer (S20); acquiring the image data from the buffer and rasterizing the image data by using the image type, the width, height and bit depth of the image and the position information to obtain a rasterized page lattice (S30). The solution may reduce the reading and writing operations for data files on disk and improve the rasterization efficiency of the digital image.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 22, 2015
    Assignees: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY FOUNDER R & D CENTER, BEIJING FOUNDER ELECTRONIC CO., LTD.
    Inventor: Yong Ji
  • Patent number: 9208414
    Abstract: The application discloses a method for double-sided printing with two colors. The method comprises a step of receiving two pages of original four-color page lattice according to a printing order each time, a step of extracting effective data of first and second colors in the two pages of original four-color page lattice, respectively and a step of writing the data of the first and second colors extracted respectively into data of first color, second color, third color and fourth color of a new page of four-color page lattice, respectively.
    Type: Grant
    Filed: December 24, 2011
    Date of Patent: December 8, 2015
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R & D Center
    Inventors: Linyi Li, Weiping Huang
  • Patent number: 9182661
    Abstract: The present application provides a screen method for intaglio printing, comprising: dividing multiple classes of regions according to a brightness range; and generating screen dots with various screen patterns for the grouped classes of regions. The present application also provides a screen device for intaglio printing, comprising: a dividing module configured to group multiple classes of regions according to the brightness range; and a generating module configured to generate screen dots with various screen patterns for the grouped classes of regions. Since multiple kinds of screen patterns are applied in the technical solutions in present application, the problem, i.e., water ripple will occur in the prior art, may be addressed, so as to improve the quality of printing.
    Type: Grant
    Filed: December 24, 2011
    Date of Patent: November 10, 2015
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R&D Center
    Inventors: Haifeng Li, Bin Yang
  • Patent number: 9073316
    Abstract: This invention provides an inkjet printing positioning device and control method thereof. The inkjet printing positioning device comprises: base; linear guide rail fixedly mounted on the base; inkjet unit, moving in matched manner with the linear guide rail; ball screw, driving the inkjet unit to move linearly when being rotated; servomotor, for driving the ball screw to rotate; zero position detecting device, mounted in a position on the moving travel route of the inkjet unit from the initial position to the printing area, and for sending zero position signal when detects that the inkjet unit is passing by; controller connecting the zero position detecting device and the servomotor, and for controlling the servomotor to drive the inkjet unit to move from the current position to the printing area and locate there, and controlling the servomotor to drive the inkjet unit to move predetermined displacement upon receipt of zero position signal.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 7, 2015
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R&D Center
    Inventors: Peng Jin, Feng Chen, Zhihong Liu
  • Patent number: 9073339
    Abstract: Disclosed is a control method for a digital ink-jet printing device to carry out multicolor ink-jet printing on an intermittent rotary printing device. The method includes: determining whether a current page is the first page; if yes, calculating a length of an image to be printed on the current page by subtracting a distance between an imaging component group and a reference from a length of a page, wherein the reference is the foremost printing imaging component group in a movement direction of a printed body, and acquiring image data of the current page, the length of which is the calculated length, after delaying the distance; if no, acquiring unprinted image data of a previous page, the length of which is the distance, and image data of the current page, the length of which is the calculated length.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: July 7, 2015
    Assignees: Peking University Founder Group, Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R&D Center
    Inventors: Jianmei Huang, Tao Yang, Feng Chen
  • Patent number: 9056511
    Abstract: The present invention provides a method for calibrating a spot color comprising: determining a target value for the spot color; and calibrating a printing device in an enumeration cycling manner, so that a spot color measurement value of a color block output by the printing device approximates the target value. The present invention further provides an apparatus for calibrating a spot color, comprising: a target module used for determining a target value for the spot color; a calibrating module used for calibrating a printing device in an enumeration cycling manner, so that a spot color measurement value of a color block output by the printing device approximates the target value. The present invention precisely calibrates the spot color of the printing device.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: June 16, 2015
    Assignees: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY, BEIJING FOUNDER ELECTRONICS CO., LTD., PEKING UNIVERSITY FOUNDER R&D CENTER
    Inventors: Haifeng Li, Xueyan Yan, Yuying Bai
  • Publication number: 20150127644
    Abstract: The present application discloses methods and systems for incrementally collecting replies in a forum and belongs to the technical field of collecting network information. The method comprises periodically determining whether there is a newly-established post and a post having new replies in all forum list pages needed to be collected: if yes, extracting a main post and reply information from the newly-established post, and extracting the information of the new replies from the post having new replies. The system comprises a determining device (11) for periodically determining whether there is a newly-established post and a post having new replies in all forum list pages needed to be collected; and an extracting device (12) for extracting a main post and reply information from the newly-established post, and extracting the information of the new replies from the post having new replies.
    Type: Application
    Filed: December 22, 2011
    Publication date: May 7, 2015
    Applicants: Peking University Founder Group Co., Ltd., Peking University Founder R & D Center, Beijing Founder Electronics Co., Ltd., Peking University
    Inventors: Xinli Wu, Jianwu Yang
  • Patent number: 9013734
    Abstract: The present invention provides a method and an apparatus for controlling pauses in printing. The method includes: transmitting imaging data to an imaging unit, and transmitting one printing signal while transmitting the imaging data of each page which are printed when the imaging unit receives the printing signal; generating a command of pausing printing when receiving a cause of pausing; stopping transmitting the printing signal to the imaging unit according to the command of pausing printing, printing the imaging data is stopped when the imaging unit cannot receive the printing signal.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: April 21, 2015
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R&D Center
    Inventors: Dan Li, Xiaohui Wen, Zhihong Liu
  • Patent number: 8995023
    Abstract: An amplitude modulation screening method is provided. The method comprises a step of utilizing regular hexagon screen dots to form a threshold matrix for amplitude screening. In embodiments of the present application, an amplitude modulation screening apparatus is also provided. The apparatus may comprise a matrix module configured to constitute a threshold matrix for amplitude screening using regular hexagon screen dots. Due to the threshold matrix formed with regular hexagon screen dots, the method and apparatus of the present application resolve the problem of the screen dots in the prior art, and improve the printing quality.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: March 31, 2015
    Assignees: Peking University Founder Group Co., Ltd, Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R & D Center
    Inventors: Haifeng Li, Bin Yang
  • Patent number: 8976383
    Abstract: Disclosed is a method and system for document printing management and control and source tracking. A printing management service program runs at a server end. A printing monitoring service program runs at a client end. The printing management service program saves client end information, monitors and manages a client end computer, sets a printing management policy, and delivers operation instructions to the client end. The printing monitoring service program collects the client end information, sends the client end information to the server end, and executes the operation instruction.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: March 10, 2015
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd., Peking University Founder R&D Center
    Inventors: Wenfa Qi, Shuchang Han, Gaoyang Wang, Lidong Wang, Bin Yang
  • Patent number: 8876250
    Abstract: The application discloses a method for measuring the total amount of ink of an inkjet printing device. The method may include: printing a sampling figure (S10); measuring the color of the sampling figure by a measuring device (S20); and determining the total amount of ink according to the measurements (S30). The application also discloses an apparatus for measuring the total amount of ink of an inkjet printing device. The apparatus may include a printing module (10) configured to print a sampling figure; a measuring device (20) configured to measure the color of the sampling figure by a measuring device; and a determining module (30) configured to determine the total amount of ink according to the measurements. The method and the apparatus can improve the inkjet printing quality.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: November 4, 2014
    Assignees: Peking University Founder Group Co., Ltd., Beijing Founder Electronics Co., Ltd., Peking University Founder R&D Center
    Inventors: Haifeng Li, Yanman Ma, Yuying Bai
  • Patent number: 8861034
    Abstract: The present application discloses a method and an apparatus for generating multi-bit depth halftone amplitude-modulation dots. The method may comprise: scanning an input image to obtain a value of a current pixel Pxy, where x represents a lateral position index of the current pixel, and y represents a vertical position index of the current pixel; obtaining gj from a preset multi-bit depth threshold matrix G by starting with i=0, and determining if Pxy<gj, then providing a screening output gray level gradation value of the printer to Out=L?1?i; and otherwise, increasing i and repeating the determining and providing steps. L represents the number of a frequency-modulation screen gradation, L=2e, e represents a bit depth value of the printer, i is an integer and i?[0,L?1], h is an index number of an element g arranged sequentially in G and h is provided to h=(y % n)×m+(x % m)+i×m×n, and gj is the element value of ith line and jth row in G.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: October 14, 2014
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Electronics Co., Ltd, Peking University Founder R & D Center
    Inventors: Haifeng Li, Bin Yang
  • Publication number: 20140132992
    Abstract: The present application discloses a method and an apparatus for generating multi-bit depth halftone amplitude-modulation dots. The method may comprise: scanning an input image to obtain a value of a current pixel Pxy, where x represents a lateral position index of the current pixel, and y represents a vertical position index of the current pixel; obtaining gj from a preset multi-bit depth threshold matrix G by starting with i=0, and determining if Pxy<gj, then providing a screening output gray level gradation value of the printer to Out=L?1?i; and otherwise, increasing i and repeating the determining and providing steps. L represents the number of a frequency-modulation screen gradation, L=2e, e represents a bit depth value of the printer, i is an integer and i?[0,L?1], h is an index number of an element g arranged sequentially in G and h is provided to h=(y % n)×m+(x % m)+i×m×n, and gj is the element value of ith line and jth row in G.
    Type: Application
    Filed: May 18, 2012
    Publication date: May 15, 2014
    Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY FOUNDER R&D CENTER, BEIJING FOUNDER ELECTRONICS CO. LTD., PEKING UNIVERSITY
    Inventors: Haifeng Li, Bin Yang
  • Publication number: 20140111572
    Abstract: This invention provides an inkjet printing positioning device and control method thereof. The inkjet printing positioning device comprises: base; linear guide rail fixedly mounted on the base; inkjet unit, moving in matched manner with the linear guide rail; ball screw, driving the inkjet unit to move linearly when being rotated; servomotor, for driving the ball screw to rotate; a zero position detecting device, mounted in a position on the moving travel route of the inkjet unit from the initial position to the printing area, and for sending zero position signal when detects that the inkjet unit is passing by; controller connecting the zero position detecting device and the servomotor, and for controlling the servomotor to drive the inkjet unit to move from the current position to the printing area and locate there, and controlling the servomotor to drive the inkjet unit to move predetermined displacement upon receipt of zero position signal.
    Type: Application
    Filed: August 7, 2012
    Publication date: April 24, 2014
    Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY FOUNDER R&D CENTER, BEIJING FOUNDER ELECTRONICS CO., LTD., PEKING UNIVERSITY
    Inventors: Peng Jin, Feng Chen, Zhihong Liu
  • Publication number: 20140067784
    Abstract: The present application provides web information detecting method and system. The method according to the present application comprises: pre-extracting keywords from a web page; storing a corresponding relationship between the extracted keywords and a URL of the web page in a database; obtaining a source file of a web page to be detected; searching the database for keywords that have the same URL as that of the web page to be detected; comparing the searched keywords to the source file information of the web page to be detected; and determining the existence of information of the web page to be detected according to a matching degree. The present application increases the accuracy of web information detection.
    Type: Application
    Filed: December 22, 2011
    Publication date: March 6, 2014
    Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY FOUNDER R & D CENTER, BEIJING FOUNDER ELECTRONICS CO., LTD., PEKING UNIVERSITY
    Inventors: Song Wang, Rufeng Liang, Dan Zhang, Hong'e Sun, Jianwu Yang, Xinli Wu
  • Publication number: 20140052753
    Abstract: The application relates to communication technology field, in particular to a method, an apparatus and a system for processing a public sentiment topic. The method comprises steps of searching a public sentiment topic containing public sentiment information through a network; acquiring characteristic information of the searched public sentiment topic; determining whether the acquired characteristic information of the public sentiment topic meets an alarming condition; and if yes, storing the public sentiment topic and its characteristic information. According to the method, apparatus and system for processing the public sentiment topic provided in embodiments of the present application, it can be determined whether or not an alarm for the public sentiment topic shall be issued by acquiring and determining the characteristic information of the public sentiment topic.
    Type: Application
    Filed: December 21, 2011
    Publication date: February 20, 2014
    Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY FOUNDER R & D CENTER, BEIJING FOUNDER ELECTRONICS CO., LTD., PEKING UNIVERSITY
    Inventors: Dan Zhang, Jianwu Yang, Rufeng Liang, Xinli Wu
  • Publication number: 20140043639
    Abstract: The application discloses a method and an apparatus for rasterizing a page digital image. The method comprises steps of parsing a page digital image to obtain basic information, position information and rasterization information of the image, with the basic information including image data, image type, a width, height and bit depth of the image (S10); decoding data encoding type to obtain the image data and saving the image data into a buffer (S20); acquiring the image data from the buffer and rasterizing the image data by using the image type, the width, height and bit depth of the image and the position information to obtain a rasterized page lattice (S30). The solution may reduce the reading and writing operations for data files on disk and improve the rasterization efficiency of the digital image.
    Type: Application
    Filed: December 21, 2011
    Publication date: February 13, 2014
    Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY FOUNDER R & D CENTER, BEIJING FOUNDER ELECTRONICS CO., LTD.
    Inventor: Yong Ji