Patents by Inventor Po-Han Chen

Po-Han 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).

  • Patent number: 11105763
    Abstract: A method includes steps of: applying a first voltage signal on a blood sample so as to obtain a preliminary value regarding an analyte in the blood sample; applying on the blood sample, a second voltage signal that includes cycles of a pulse and that has a voltage value alternating between high and low levels; measuring a physical quantity resulting from application of the second voltage signal on the blood sample at a time point in one of the cycles of the pulse of the second voltage signal so as to generate a calibration value; and calibrating the preliminary value based on the calibration value so as to obtain a calibrated value of the analyte in the blood sample which serves as a result of measurement of the analyte.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: August 31, 2021
    Assignee: HEALTH & LIFE CO., LTD.
    Inventors: Meng-Yi Lin, Po-Han Chen, Pei-Chen Chang
  • Publication number: 20210183935
    Abstract: Photosensors may be formed on a front side of a semiconductor substrate. An optical refraction layer having a first refractive index may be formed on a backside of the semiconductor substrate. A grid structure including openings is formed over the optical refraction layer. A masking material layer is formed over the grid structure and the optical refraction layer. The masking material layer may be anisotropically etched using an anisotropic etch process that collaterally etches a material of the optical refraction layer and forms non-planar distal surface portions including random protrusions on physically exposed portions of the optical refraction layer. An optically transparent layer having a second refractive index that is different from the first refractive index may be formed on the non-planar distal surface portions of the optical refraction layer. A refractive interface refracts incident light in random directions, and improves quantum efficiency of the photosensors.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 17, 2021
    Inventors: Po-Han CHEN, Kuo-Cheng LEE, Fu-Cheng CHANG
  • Patent number: 10726956
    Abstract: The fever epidemic detection system comprises a detection module, a control module and a communication module. The detection module measures and obtains a body-temperature measured value. The control module comprises a first operation unit, a determination unit and an alert unit. The first operation unit receives and calibrates the body-temperature measured value with a calibration factor, and generates a body-temperature calibrated value. The determination unit receives and determines whether the body-temperature calibrated value is within a preset normal body-temperature range and generates a determination result. The alert unit receives the determination result. The communication module transmits data to an external device. The alert unit generates a first alerting message, if the determination result shows that the body-temperature calibrated value is not within a preset normal body-temperature range.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 28, 2020
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Joe-Air Jiang, Chien-Hao Wang, Ya-An Chan, Lin-Kuei Su, Cheng-Yue Liu, Po-Han Chen, Wei-Sheng Chen, Ching-Ya Tseng
  • Publication number: 20200135785
    Abstract: An image sensor includes a substrate and a first photodiode (PD) having a first size in the substrate. The image sensor further includes a second PD having a second size in the substrate, wherein the first size is different from the second size. The image sensor further includes a first buffer layer over the substrate. The image sensor further includes a shield layer over the first buffer, wherein the first buffer layer and the shield layer define a first recess aligned with the first PD and a second recess aligned with the second PD. The image sensor further includes a flicker reduction layer in the first recess, wherein the second recess is free of the flicker reduction layer.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 30, 2020
    Inventors: Po-Han CHEN, Chen-Chun CHEN, Fu-Cheng CHANG, Kuo-Cheng LEE
  • Publication number: 20200038906
    Abstract: The present invention provides a polymer-collagen composite film and a method of forming the same. In the method, a surface of a polymer substrate is treated by plasma, and collagen is then grafted to the surface, thereby forming the polymer-collagen composite film. The composite film has good hydrophilicity and biocompatibility.
    Type: Application
    Filed: June 26, 2019
    Publication date: February 6, 2020
    Inventors: Po-Han Chen, I-Ming Chen, Tung-Liang Chen
  • Publication number: 20190204259
    Abstract: A method includes steps of: applying a first voltage signal on a blood sample so as to obtain a preliminary value regarding an analyte in the blood sample; applying on the blood sample, a second voltage signal that includes cycles of a pulse and that has a voltage value alternating between high and low levels; measuring a physical quantity resulting from application of the second voltage signal on the blood sample at a time point in one of the cycles of the pulse of the second voltage signal so as to generate a calibration value; and calibrating the preliminary value based on the calibration value so as to obtain a calibrated value of the analyte in the blood sample which serves as a result of measurement of the analyte.
    Type: Application
    Filed: November 21, 2018
    Publication date: July 4, 2019
    Inventors: Meng-Yi LIN, Po-Han CHEN, Pei-Chen CHANG
  • Publication number: 20190151225
    Abstract: The present invention provides a waterborne composition for preventing contact between acnes and irritants, and the water based composition includes a polymer (A), a thickener (B), a functional additive (C) and water (D). The present invention further provides a transparent film and a method of forming the same for preventing contact between acnes and irritants.
    Type: Application
    Filed: May 3, 2018
    Publication date: May 23, 2019
    Inventors: Po-Han Chen, Ya-Yun Tsai, Chia-Li Huang, I-Ming Chen, Tung-Liang Chen
  • Patent number: 10171164
    Abstract: A 2D barcode-based bi-directional wireless transmission system includes a first apparatus and a second apparatus each including a display screen, a processing system and a camera. The first apparatus encodes a data to be sent into multiple 2D barcode images and sequentially displays these multiple 2D barcode images on the display screen thereof so that the second apparatus sequentially captures the multiple 2D barcode images from the first apparatus, and then decodes the captured multiple 2D barcode images into a received data, and then encodes a feedback information into a 2D barcode image and displays on the display screen thereof for allowing the first apparatus to capture and then to decode the captured 2D barcode image of the feedback information so as to obtain the feedback information.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: January 1, 2019
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Chang-Ming Lee, Ze-An Chen, Po-Han Chen
  • Publication number: 20180181778
    Abstract: A 2D barcode-based bi-directional wireless transmission system includes a first apparatus and a second apparatus each including a display screen, a processing system and a camera. The first apparatus encodes a data to be sent into multiple 2D barcode images and sequentially displays these multiple 2D barcode images on the display screen thereof so that the second apparatus sequentially captures the multiple 2D barcode images from the first apparatus, and then decodes the captured multiple 2D barcode images into a received data, and then encodes a feedback information into a 2D barcode image and displays on the display screen thereof for allowing the first apparatus to capture and then to decode the captured 2D barcode image of the feedback information so as to obtain the feedback information.
    Type: Application
    Filed: April 13, 2017
    Publication date: June 28, 2018
    Inventors: Chang-Ming LEE, Ze-An CHEN, Po-Han CHEN
  • Patent number: 9990686
    Abstract: A method for generating a data-bearing image is implemented by an encoding system including a halftoning module and an encoding module that stores encoding rules associated with respective codes. In the method, the halftoning module converts a grayscale image into a halftone image having a plurality of image cells each consisting of a plurality of dots, at least one of which is a first-tone dot and each of the rest of which is a second-tone dot. Afterward, the encoding module generates a data-bearing halftone image encoded with at least one of the codes by maintaining or changing the number of the first-tone dots in one of the image cells based on one of the encoding rules associated with the at least one of the codes.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 5, 2018
    Assignee: NATIONAL TAIPEI UNIVERSITY OF TECHNOLOGY
    Inventors: Yung-Yao Chen, Kuan-Yu Chi, Po-Han Chen, Wei-Sheng Chen, Kai-Wen Chen
  • Publication number: 20180046778
    Abstract: The fever epidemic detection system comprises a detection module, a control module and a communication module. The detection module measures and obtains a body-temperature measured value. The control module comprises a first operation unit, a determination unit and an alert unit. The first operation unit receives and calibrates the body-temperature measured value with a calibration factor, and generates a body-temperature calibrated value. The determination unit receives and determines whether the body-temperature calibrated value is within a preset normal body-temperature range and generates a determination result. The alert unit receives the determination result. The communication module transmits data to an external device. The alert unit generates a first alerting message, if the determination result shows that the body-temperature calibrated value is not within a preset normal body-temperature range.
    Type: Application
    Filed: April 15, 2016
    Publication date: February 15, 2018
    Inventors: JOE-AIR JIANG, CHIEN-HAO WANG, YA-AN CHAN, LIN-KUEI SU, CHENG-YUE LIU, PO-HAN CHEN, WEI-SHENG CHEN, CHING-YA TSENG
  • Publication number: 20170273887
    Abstract: The present invention relates to a method of producing a composite powder. A porous powder is physically covered by collagen and chitosan sequentially, thereby forming the composite powder. The composite powder has good dispersity, an ability of moisture retention and a low greasiness while being added in an oil-in-water emulsion base or a hydrogel base to form a cosmetic composition.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 28, 2017
    Inventors: Po-Han CHEN, Ya-Yun TSAI, I-Ming CHEN, Tung-Liang CHEN
  • Publication number: 20170109857
    Abstract: A method for generating a data-bearing image is implemented by an encoding system including a halftoning module and an encoding module that stores encoding rules associated with respective codes. In the method, the halftoning module converts a grayscale image into a halftone image having a plurality of image cells each consisting of a plurality of dots, at least one of which is a first-tone dot and each of the rest of which is a second-tone dot. Afterward, the encoding module generates a data-bearing halftone image encoded with at least one of the codes by maintaining or changing the number of the first-tone dots in one of the image cells based on one of the encoding rules associated with the at least one of the codes.
    Type: Application
    Filed: May 6, 2016
    Publication date: April 20, 2017
    Inventors: Yung-Yao CHEN, Kuan-Yu CHI, Po-Han CHEN, Wei-Sheng CHEN, Kai-Wen CHEN
  • Publication number: 20160299180
    Abstract: The present disclosure provides a solar photovoltaic generation monitoring system and a method for monitoring solar photovoltaic generation. The system collects electrical and environmental parameters of a plurality of solar photovoltaic generation devices by using a plurality of sensor devices. The electrical and environmental parameters are transmitted into a server through a plurality of wireless communication device and a gateway. Therefore, the present disclosure can overcome the problems of high costs and the difficulties of hard wire deployment, and thus has advantages such as easy repair and low costs.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 13, 2016
    Inventors: Min-Sheng Liao, Joe-Air Jiang, Kun-Chang Kuo, Te-Hao Chang, Po-Han Chen, Tsang-Cheng Lin, Cheng-Yue Liu
  • Publication number: 20160130643
    Abstract: A method of copying a methylated nucleic acid molecule is provided. The method includes copying a nucleic acid molecule into a plurality of nucleic acid molecules; and contacting the plurality of nucleic acid molecules with a DNA methyltransferase enzyme and an E3 ubiquitin ligase. The method results in the copying of the methylated nucleic acid molecule.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 12, 2016
    Applicant: University of Southern California
    Inventors: Ite A. Laird-Offringa, Jinkeng Asong, Mihaela Campan, Po-Han Chen, Crystal N. Marconett, Ian Stuart Haworth
  • Patent number: 8929070
    Abstract: An expansion apparatus suitable for an electronic apparatus is provided. The expansion apparatus includes a base, a supporter and an airflow guiding structure. The base has a first fan disposed therein. The supporter is pivoted to the base along a rotating axis and has a cooling channel. The cooling channel has a first port and a second port opposite to the first port. When the electronic apparatus is assembled to the supporter, the second port of the cooling channel faces to the electronic apparatus. The airflow guiding structure is disposed between the supporter and the base movably. When the supporter is pivoted relative to the base to an expanded state, an active airflow generated by the first fan is guided by the airflow guiding structure to pass through the base and the electronic apparatus. An electronic equipment including the expansion apparatus is also provided.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 6, 2015
    Assignee: Compal Electronics, Inc.
    Inventors: Shih-Huei Liu, Chun-Jen Shih, Ching-Hsuan Wang, Pan-Jen Chen, Po-Han Chen
  • Patent number: 8744508
    Abstract: A wireless communications device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a service network. The controller module transmits a connection request message to the service network via the wireless module, and receives, on a downlink shared channel, a connection rejection message corresponding to the connection request message from the service network via the wireless module. Also, the controller module determines whether the connection rejection message indicates that congestion has occurred on the downlink shared channel, and retransmits the connection request message and waits to receive, on a forward access channel, a subsequent response message from the service network via the wireless module, in response to the connection rejection message indicating that congestion has occurred on the downlink shared channel.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: June 3, 2014
    Assignee: Acer Incorporated
    Inventor: Po-Han Chen
  • Patent number: 8608868
    Abstract: A method for improving surface mechanical properties of non-austenitic stainless steels comprises steps of: providing a non-austenitic stainless steel material; placing the non-austenitic stainless steel material in an environment containing at least one austenite-stabilizing element, and implanting the austenite-stabilizing elements into a surface of the non-austenitic stainless steel material to form a modified layer enriched with the austenite-stabilizing elements; and placing the non-austenitic stainless steel material in a carbon-bearing atmosphere to make the modified layer in contact with the carbon-bearing atmosphere, and maintaining the non-austenitic stainless steel material at a carburizing temperature below 600° C. to implant carbon into the modified layer to form a carburized layer.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: December 17, 2013
    Assignee: Taiwan Powder Technologies Co., Ltd.
    Inventors: Kuen-Shyang Hwang, Li-Hui Cheng, Yung-Chung Lu, Yang-Liang Fan, Po-Han Chen
  • Patent number: 8530358
    Abstract: The present invention discloses a manufacturing method of vertical cavity surface emitting laser. The method includes following steps: providing a substrate; forming an epitaxial layer stack including an aluminum-rich layer; forming an ion-doping mask including a ring-shaped opening; doping ions in the epitaxial layer stack through the ring-shaped opening and forming a ring-shaped ion-doped region over the aluminum-rich layer; forming an etching mask on the ion-doping mask for covering the ring-shaped opening of the ion-doping mask; etching the epitaxial layer stack through the etching mask and ion-doping mask for forming an island platform; oxidizing the aluminum-rich layer for forming a ring-shaped oxidized region. In addition, the present invention also discloses a vertical cavity surface emitting laser manufactured by the above mentioned method.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: September 10, 2013
    Assignee: True Light Corporation
    Inventors: Po-Han Chen, Cheng-Ju Wu, Jin-Shan Pan
  • Publication number: 20130155615
    Abstract: An expansion apparatus suitable for an electronic apparatus is provided. The expansion apparatus includes a base, a supporter and an airflow guiding structure. The base has a first fan disposed therein. The supporter is pivoted to the base along a rotating axis and has a cooling channel. The cooling channel has a first port and a second port opposite to the first port. When the electronic apparatus is assembled to the supporter, the second port of the cooling channel faces to the electronic apparatus. The airflow guiding structure is disposed between the supporter and the base movably. When the supporter is pivoted relative to the base to an expanded state, an active airflow generated by the first fan is guided by the airflow guiding structure to pass through the base and the electronic apparatus. An electronic equipment including the expansion apparatus is also provided.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 20, 2013
    Inventors: Shih-Huei Liu, Chun-Jen Shih, Ching-Hsuan Wang, Pan-Jen Chen, Po-Han Chen