Patents by Inventor Wei-Hsien Chen

Wei-Hsien 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: 20250289937
    Abstract: An anti-glare film is disclosed. The anti-glare film comprises a transparent substrate and an anti-glare layer comprising an acrylic binder resin, an acrylate-ether-group-containing surface active agent and a plurality of silica nanoparticles, wherein the silica nanoparticles are flocculated into a micro-floccule with an average secondary particle diameter of 1,600 nm to 3,300 nm. The present anti-glare film can provide a reliable anti-glare property with a low haze.
    Type: Application
    Filed: March 15, 2024
    Publication date: September 18, 2025
    Applicant: BenQ Materials Corporation
    Inventors: Gang-Lun Fan, Wei-Hsien Chen, Kuo-Hsuan Yu
  • Patent number: 11697741
    Abstract: An anti-glare film is disclosed. The anti-glare film comprises a transparent substrate and an anti-glare layer comprising an acrylic binder resin, a polyether-modified siloxane and a plurality of silica nanoparticles, wherein the silica nanoparticles are flocculated into a micro-floccule with an average secondary particle diameter of 1,500 nm to 3,100 nm. The present anti-glare film can provide a reliable anti-glare property with low haze and fine surface.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: July 11, 2023
    Assignee: BenQ Materials Corporation
    Inventors: Gang-Lun Fan, Wei-Hsien Chen, Kuo-Hsuan Yu
  • Patent number: 11353629
    Abstract: An anti-glare film is disclosed. The anti-glare film comprises a poly(methyl methacrylate) (PMMA) base film and an anti-glare layer comprising an acrylic binder resin and organic microparticles, wherein the anti-glare layer comprises an miscible sub-layer adjacent to the interface between the anti-glare layer and the base film for urging the organic microparticles toward the upper portion of the anti-glare layer to form an anti-glare sub-layer with an uneven surface and wherein the average thickness of the miscible layer is at least 40 percent of the total thickness of the anti-glare layer and a ratio of the average thickness of the anti-glare sub-layer to the diameter of the microparticle is between 0.45 to 1.1.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: June 7, 2022
    Assignee: BenQ Materials Corporation
    Inventors: Gang-Lun Fan, Wei-Hsien Chen, Kuo-Hsuan Yu
  • Publication number: 20210388210
    Abstract: An anti-glare film is disclosed. The anti-glare film comprises a transparent substrate and an anti-glare layer comprising an acrylic binder resin, a polyether-modified siloxane and a plurality of silica nanoparticles, wherein the silica nanoparticles are flocculated into a micro-floccule with an average secondary particle diameter of 1,500 nm to 3,100 nm. The present anti-glare film can provide a reliable anti-glare property with low haze and fine surface.
    Type: Application
    Filed: October 22, 2020
    Publication date: December 16, 2021
    Inventors: Gang-Lun Fan, Wei-Hsien Chen, Kuo-Hsuan Yu
  • Publication number: 20210388211
    Abstract: An anti-glare film is disclosed. The anti-glare film comprises a transparent substrate and an anti-glare layer comprising an acrylic binder resin, an acrylate-ether-group-containing surface active agent and a plurality of silica nanoparticles, wherein the silica nanoparticles are flocculated into a micro-floccule with an average secondary particle diameter of 1,600 nm to 3,300 nm. The present anti-glare film can provide a reliable anti-glare property with a low haze.
    Type: Application
    Filed: October 22, 2020
    Publication date: December 16, 2021
    Inventors: Gang-Lun Fan, Wei-Hsien Chen, Kuo-Hsuan Yu
  • Publication number: 20200363561
    Abstract: An anti-glare film is disclosed. The anti-glare film comprises a poly(methyl methacrylate) (PMMA) base film and an anti-glare layer comprising an acrylic binder resin and organic microparticles, wherein the anti-glare layer comprises an miscible sub-layer adjacent to the interface between the anti-glare layer and the base film for urging the organic microparticles toward the upper portion of the anti-glare layer to form an anti-glare sub-layer with an uneven surface and wherein the average thickness of the miscible layer is at least 40 percent of the total thickness of the anti-glare layer and a ratio of the average thickness of the anti-glare sub-layer to the diameter of the microparticle is between 0.45 to 1.1.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 19, 2020
    Inventors: Gang-Lun Fan, Wei-Hsien Chen, Kuo-Hsuan Yu
  • Publication number: 20130147560
    Abstract: A low noise amplifier with back-to-back connected diodes and a back-to-back connected diode with high impedance thereof are provided. The low noise amplifier includes a first operational amplifier (OP) and at least two first back-to-back connected diodes. The back-to-back connected diode with high impedance is formed from at least one MOS FET operated within a cut-off region. The first back-to-back connected diodes are connected electrically between the first input end and the first output end, and between the second input end and the second output end, of the first OP respectively. By the implementation of the present invention, the low noise amplifier is not only low noise, but also with low energy consumption, high stability, low circuitry complexity, and easily controlled manufacturing process.
    Type: Application
    Filed: February 29, 2012
    Publication date: June 13, 2013
    Applicant: National Chip Implementation Center National Applied Research Laboratories
    Inventors: Wei-Hsien CHEN, Kuei-Cheng Lin, Bing-Song Chen, Chien-Chih Lin
  • Patent number: 8441313
    Abstract: A current-mode analog baseband apparatus is provided. The apparatus includes a current-mode low-order filter, a current-mode programmable gain amplifier (PGA) unit and a high-order filter. The input impedance is smaller than the output impedance in the current-mode low-order filter. An input terminal of the current-mode PGA unit is connected to an output terminal of the current-mode low-order filter. An input terminal of the high-order filter is connected to an output terminal of the current-mode PGA unit.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 14, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Horng-Yuan Shih, Kai-Cheung Juang, Wei-Hsien Chen
  • Patent number: 8427230
    Abstract: A current-mode analog baseband apparatus is provided. The apparatus includes a current-mode low-order filter, a current-mode programmable gain amplifier (PGA) unit and a high-order filter. The input impedance is smaller than the output impedance in the current-mode low-order filter. An input terminal of the current-mode PGA unit is connected to an output terminal of the current-mode low-order filter. An input terminal of the high-order filter is connected to an output terminal of the current-mode PGA unit.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: April 23, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Horng-Yuan Shih, Kai-Cheung Juang, Wei-Hsien Chen
  • Publication number: 20120262228
    Abstract: A current-mode analog baseband apparatus is provided. The apparatus includes a current-mode low-order filter, a current-mode programmable gain amplifier (PGA) unit and a high-order filter. The input impedance is smaller than the output impedance in the current-mode low-order filter. An input terminal of the current-mode PGA unit is connected to an output terminal of the current-mode low-order filter. An input terminal of the high-order filter is connected to an output terminal of the current-mode PGA unit.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Horng-Yuan Shih, Kai-Cheung Juang, Wei-Hsien Chen, Huan-Ke Chiu
  • Patent number: 8289080
    Abstract: A current-mode amplifier including an input stage, a feedback circuit and an output stage is provided. The input stage has an input terminal for receiving an input current of the current-mode amplifier. The input stage generates a corresponding inner current in accordance with the input current and a feedback current. The feedback circuit is connected to the input stage. The feedback circuit generates the corresponding feedback current in accordance with the inner current of the input stage. An input terminal of the output stage is connected to an output terminal of the input stage. An output terminal of the output stage serves as an output terminal of the current-mode amplifier.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: October 16, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Horng-Yuan Shih, Wei-Hsien Chen, Kai-Cheung Juang
  • Publication number: 20120019323
    Abstract: A current-mode amplifier including an input stage, a feedback circuit and an output stage is provided. The input stage has an input terminal for receiving an input current of the current-mode amplifier. The input stage generates a corresponding inner current in accordance with the input current and a feedback current. The feedback circuit is connected to the input stage. The feedback circuit generates the corresponding feedback current in accordance with the inner current of the input stage. An input terminal of the output stage is connected to an output terminal of the input stage. An output terminal of the output stage serves as an output terminal of the current-mode amplifier.
    Type: Application
    Filed: August 13, 2010
    Publication date: January 26, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Horng-Yuan Shih, Wei-Hsien Chen, Kai-Cheung Juang
  • Publication number: 20120019314
    Abstract: A current-mode analog baseband apparatus is provided. The apparatus includes a current-mode low-order filter, a current-mode programmable gain amplifier (PGA) unit and a high-order filter. The input impedance is smaller than the output impedance in the current-mode low-order filter. An input terminal of the current-mode PGA unit is connected to an output terminal of the current-mode low-order filter. An input terminal of the high-order filter is connected to an output terminal of the current-mode PGA unit.
    Type: Application
    Filed: August 13, 2010
    Publication date: January 26, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Horng-Yuan Shih, Kai-Cheung Juang, Wei-Hsien Chen, Huan-Ke Chiu
  • Publication number: 20120019325
    Abstract: A current-mode amplifier including an input stage, a feedback circuit and an output stage is provided. The input stage has an input terminal for receiving an input current of the current-mode amplifier. The input stage generates a corresponding inner current in accordance with the input current and a feedback current. The feedback circuit is connected to the input stage. The feedback circuit generates the corresponding feedback current in accordance with the inner current of the input stage. An input terminal of the output stage is connected to an output terminal of the input stage. An output terminal of the output stage serves as an output terminal of the current-mode amplifier.
    Type: Application
    Filed: August 13, 2010
    Publication date: January 26, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Horng-Yuan Shih, Wei-Hsien Chen, Kai-Cheung Juang
  • Patent number: 7629906
    Abstract: A circuit and a method for calibrating the direct-current offset in the signal output from a signal processing unit are provided. The calibration circuit includes a 1-bit quantizer, a control logic unit and a digital-to-analog converter. The 1-bit quantizer is coupled to the output end of the signal processing unit for receiving and detecting a direct-current offset component in the output signal so as to obtain quantization information. The control logic unit is coupled to the 1-bit quantizer for sequentially setting one of a plurality of bits of a compensation value and updating the set bit according to the quantization information. The digital-to-analog converter is coupled to the control logic unit for compensating the direct-current offset component in the signal output from the signal processing unit according to the compensation value.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: December 8, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Kai-Cheung Juang, Wei-Hsien Chen, Horng-Yuan Shih
  • Publication number: 20090167577
    Abstract: A circuit and a method for calibrating the direct-current offset in the signal output from a signal processing unit are disclosed. The calibration circuit includes a 1-bit quantizer, a control logic unit and a digital-to-analog converter. The 1-bit quantizer is coupled to the output end of the signal processing unit for receiving and detecting a direct-current offset component in the output signal so as to obtain quantization information. The control logic unit is coupled to the 1-bit quantizer for sequentially setting one of a plurality of bits of a compensation value and updating the set bit according to the quantization information. The digital-to-analog converter is coupled to the control logic unit for compensating the direct-current offset component in the signal output from the signal processing unit according to the compensation value.
    Type: Application
    Filed: May 21, 2008
    Publication date: July 2, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kai-Cheung Juang, Wei-Hsien Chen, Horng-Yuan Shih