Patents by Inventor Jessen Chen

Jessen Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070262156
    Abstract: This invention relates to a functional module structural improvement for expanded and enhanced SIM card comprising of an user identification module and a SIM card; the user identification module is formed by thin film circuit board, the surface is installed with electrical connection points and a control chip, the control chip is built in with: operational interface and functional selection items, application information of the original line number, and more than one sets of new number information, operational interfaces, functional selection items, application information; it can provide the user with more diversified and total functional interface application as well as multi-number selection and usage switching, the convenience and effectiveness of usage can thus be greatly enhanced.
    Type: Application
    Filed: May 10, 2006
    Publication date: November 15, 2007
    Inventors: Jessen Chen, Bemard Wang
  • Patent number: 7188924
    Abstract: A circuit and a method of estimating pulse frequencies of nozzles in an ink-jet head use a new mechanism of estimating pulse frequencies of nozzles instead of in a conventional counting mechanism. The circuit includes a DRAM, an adder and a method control mechanism. The method control mechanism controls the access method. The DRAM retrieves a plurality of pulse frequency parameters of nozzles after ink-jet cycle signals are received. The adder adds the parameters and weighted values to update pulse frequency parameters. The updated parameters are saved back to the DRAM.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: March 13, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Jessen Chen, Yu-Chu Huang, Jane Chang, Hsiang-Pei Ou
  • Patent number: 7125091
    Abstract: A method creates printing data applied to a printer that is capable of generating different sizes of ink drops. Firstly, a halftoning threshold table is created based on all possible combinations that are determined based on the quantity of the printheads and the sizes of ink drops quantity provided by each printhead. When the image data to be printed is received, each pixel of an image will correspond to one combination based on the halftoning threshold table. The corresponding combination is deemed as a halftoning encoded data and represented by several bits. These bits can be separated into plural groups, where the bits contained in each group are for driving a specific printhead. That is to say, each printhead has its own driving data so that the printing process will have superior efficiency.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: October 24, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Chu Huang, Jessen Chen, Jane Chang, Hsiao-Yu Han
  • Publication number: 20050140703
    Abstract: Ink jet print head identification circuit and method. A printer includes a controller, a printer carriage installed in the printer, and at least one print head set up in the printer carriage. Each print head is installed in the printer carriage, comprising an identification circuit coupled to the controller through a data line, a clock line and a latch line, wherein the identification circuit comprises a first storing unit, a first logic unit, a second logic unit, a second storing unit, and a bank driving circuit. By installing the first logic unit and the second logic unit, the print head doesn't need to feed back ID information to the controller of a printer, thus decreasing the loading of the controller.
    Type: Application
    Filed: October 18, 2004
    Publication date: June 30, 2005
    Inventors: Hsiang-Pei Ou, Jessen Chen, Jane Chang
  • Publication number: 20050134619
    Abstract: A circuit and a method of estimating pulse frequencies of nozzles in an ink-jet head use a new mechanism of estimating pulse frequencies of nozzles instead of in a conventional counting mechanism. The circuit includes a DRAM, an adder and a method control mechanism. The method control mechanism controls the access method. The DRAM retrieves a plurality of pulse frequency parameters of nozzles after ink-jet cycle signals are received. The adder adds the parameters and weighted values to update pulse frequency parameters. The updated parameters are saved back to the DRAM.
    Type: Application
    Filed: June 17, 2004
    Publication date: June 23, 2005
    Inventors: Jessen Chen, Yu-Chu Huang, Jane Chang, Hsiang-Pei Ou
  • Publication number: 20050122361
    Abstract: A method creates printing data applied to a printer that is capable of generating different sizes of ink drops. Firstly, a halftoning threshold table is created based on all possible combinations that are determined based on the quantity of the printheads and the sizes of ink drops quantity provided by each printhead. When the image data to be printed is received, each pixel of an image will correspond to one combination based on the halftoning threshold table. The corresponding combination is deemed as a halftoning encoded data and represented by several bits. These bits can be separated into plural groups, where the bits contained in each group are for driving a specific printhead. That is to say, each printhead has its own driving data so that the printing process will have superior efficiency.
    Type: Application
    Filed: April 30, 2004
    Publication date: June 9, 2005
    Applicant: Industrial Technology Research Institute
    Inventors: Yu-Chu Huang, Jessen Chen, Jane Chang, Hsiao-Yu Han
  • Publication number: 20050122546
    Abstract: An image processing mechanism combines the halftone method and image enhancement technique for processing halftone and improving image performance. The mechanism includes an image input module, an image enhancement module and a halftone module. The image input module sends the original image data to the image enhancement module to enhance the image by filtering. The halftone module processes the enhanced image data by the algorithm of error diffusion. It combines two different processes into one mechanism to simplify the hardware architecture and to decrease the usage of memory.
    Type: Application
    Filed: April 7, 2004
    Publication date: June 9, 2005
    Inventors: Hsiao-Yu Han, Jane Chang, Jessen Chen, Yu-Chu Huang, Shyh-Hsing Wang, Yao-Wen Huang
  • Publication number: 20050105137
    Abstract: A method for implementing error diffusion process with memory management is disclosed to separate several small blocks in one image that needs to be error diffused. The size of every small block is smaller than the internal static random access memory (SRAM) size. When doing error diffusion on one small block, the pixels located at the edge of the block that cannot be diffused are reserved in the SRAM or the dynamic random access memory (DRAM). When doing error diffusion on the next block, the previous reserved pixels are reused. These steps are repeated to process all the blocks until the whole image is finished with error diffusion. This method can reduce external DRAM access times, use smaller internal SRAM sizes and improve the performance of the image process hardware.
    Type: Application
    Filed: April 1, 2004
    Publication date: May 19, 2005
    Inventors: Shyh-Hsing Wang, Jessen Chen
  • Publication number: 20050099447
    Abstract: A method and apparatus for detecting faulty nozzles is applied to a multi-function peripheral (MFP). The method is to print a predefined test pattern by an inkjet component of a printing unit. A scanning unit connecting with the printing unit scans the predefined test pattern to generate an image data of the predefined test pattern. Afterwards, an analyzing unit analyzes the image data of the predefined test pattern to see if any one of the nozzles is clogged. Finally, the analyzing unit reports the result to the printing unit. The printing unit will avoid using the clogged nozzles during the printing process to improve the quality of printing.
    Type: Application
    Filed: February 26, 2004
    Publication date: May 12, 2005
    Inventors: Juei Hsu, Jessen Chen, Jane Chang, Yu-Chu Huang
  • Publication number: 20030108804
    Abstract: An inkjet manufacturing process and device for color filters are disclosed. The invention includes an inkjet head module, a motion platform, an electric field generator, an optical detection system, and a control system. The motion platform can support a filter substrate and have relative motion with respect to the inkjet head module. The optical detection system provides a real-time positioning function so that the inkjet head module can correctly jet and paint ink droplets on the substrate. The electric field generator imposes an electric field on the ink droplets so that the ink droplets become homogeneous because of the electrocapillary effect. The invention avoids the usual design of an ink absorption layer, greatly increasing the accuracy and diffusion homogeneity of the ink droplet painting.
    Type: Application
    Filed: March 5, 2002
    Publication date: June 12, 2003
    Inventors: Kevin Cheng, Jupiter Tsai, Jessen Chen, Tz-Ya Yang, Jane Chang
  • Publication number: 20030030715
    Abstract: An ink-jet printing method and apparatus for manufacturing color filters of the invention comprises an printing head module, a table, an air jet module, an optical system, and a controlling system. The table is used to support the filter substrate and move relative to the printing head module. The optical system is used for real-time calibration so the printing head module is able to precisely spray ink droplets to the substrate. An air jet head module is then used to accurately distribute ink droplets. The conventional absorb layer is not necessary. The precision of spraying and distribution of ink droplets are thus much improved over the conventional technique.
    Type: Application
    Filed: October 11, 2001
    Publication date: February 13, 2003
    Inventors: Kevin Cheng, Tz-Ya Yang, Jessen Chen, Jupiter Hu