Patents by Inventor Kun-Lin Chiang

Kun-Lin Chiang 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: 20230030386
    Abstract: The present disclosure relates to a film having light transmittance and a manufacturing method thereof. The film includes a Polyurethane (PU) surface layer, and a thermoplastic elastomer layer. The thermoplastic elastomer layer is disposed under the PU surface layer. The thermoplastic elastomer layer includes color masterbatch material. The color masterbatch material is between 0.1-1% weight. By controlling the amount of color masterbatch material in the thermoplastic elastomer layer, the film of the present disclosure has real color appearance and good light transmittance.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 2, 2023
    Inventors: CHIH-YI LIN, KUO-KUANG CHENG, CHIH-CHEN LIN, KUN LIN CHIANG, KUO-LI LO, CHIA-TSAN SHIH
  • Publication number: 20220205172
    Abstract: The present disclosure is relates to an artificial leather and a manufacturing method thereof. The artificial leather includes a substrate, an adhering glue layer, a moldable surface layer, a TPU adhering layer, a TPU layer and a bottom layer. The substrate includes a first surface and a second surface. The adhering glue layer is disposed on the first surface of the substrate. The moldable surface layer is disposed on the adhering glue layer. The TPU adhering layer is disposed on the second surface of the substrate. The TPU is disposed on a surface of the TPU adhering layer. The bottom layer is disposed on a surface of the TPU layer. The moldable surface layer of the artificial leather has a texture of leather and color effect. The bottom layer has a villus effect and high wear resistance.
    Type: Application
    Filed: December 26, 2021
    Publication date: June 30, 2022
    Inventors: CHIH-YI LIN, KUO-KUANG CHENG, KUN LIN CHIANG, SHIH MING TAI, DE-YU LI
  • Patent number: 11134421
    Abstract: A base station and an adjustment method for data transmission are provided. User equipment is selectively connected to two base stations at the same time. In the method, a remaining load amount is determined. A load demand amount required for a to-be-transmitted data bearer in the data bearer is determined. It is determined that a portion of the data packets corresponding to the to-be-transmitted data bearer is split, according to a comparison result between the remaining load amount and the load demand amount, to the second base station for transmission. A transmission ratio of the data packets split to the base station to those split to the second base station is determined according to a ratio of packet loss of the base station to the second base station. Accordingly, electric power of the user equipment can be saved, data loss can be reduced, and data can be converged effectively.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 28, 2021
    Assignee: Sercomm Corporation
    Inventors: Kun-Lin Chiang, Ching-Feng Liang
  • Patent number: 11057782
    Abstract: A multi-cell coordination system and a channel calibration method thereof are provided. A reference apparatus receives a beam-precoding downlink reference signal via a directional beam from a base station. The base station receives a beam-precoding uplink reference signal via the directional beam from the reference apparatus. The server receives uplink and downlink channel information, where the uplink channel information is generated based on the uplink reference signal, and the downlink channel information is generated based on the downlink reference signal. The server obtains a channel calibration coefficient according to the uplink and downlink channel information. The channel calibration coefficient is used for estimating a downlink channel. Accordingly, the problem of conventional coordination system can be solved, and the embodiment can be implemented in multi-beam base station.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 6, 2021
    Assignee: Sercomm Corporation
    Inventors: Kun-Lin Chiang, Jia-Ming Chen
  • Publication number: 20210068011
    Abstract: A base station and an adjustment method for data transmission are provided. User equipment is selectively connected to two base stations at the same time. In the method, a remaining load amount is determined. A load demand amount required for a to-be-transmitted data bearer in the data bearer is determined. It is determined that a portion of the data packets corresponding to the to-be-transmitted data bearer is split, according to a comparison result between the remaining load amount and the load demand amount, to the second base station for transmission. A transmission ratio of the data packets split to the base station to those split to the second base station is determined according to a ratio of packet loss of the base station to the second base station. Accordingly, electric power of the user equipment can be saved, data loss can be reduced, and data can be converged effectively.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 4, 2021
    Applicant: Sercomm Corporation
    Inventors: Kun-Lin Chiang, Ching-Feng Liang
  • Patent number: 10880753
    Abstract: A master base station and a resource allocation indicating method are provided. The master base station and a distributed base station are based on a layer 1-layer 2 split technology. A bandwidth part (BWP) configuration is enabled. Different BWP configurations have different configurations in a frequency domain. The BWP configuration corresponds to continuous and part of the common resource units, and corresponds to a common configuration to generate a corresponding relation, which is related to a corresponding situation between identifications of the local resource units and the common resource units. The identifications of the local resource units are used in the BWP configuration to identify the local resource units, and the identifications of the common resource units are used in the common configuration to identify the common resource units. The corresponding relation is transmitted. Accordingly, the BWP can be applied to a transmission interface of layer 1-layer 2 split technology.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: December 29, 2020
    Assignee: Sercomm Corporation
    Inventors: Kun-Lin Chiang, Shao-Yu Chien, Jen-Feng Huang
  • Patent number: 10862516
    Abstract: A digital pre-distortion circuit and a digital pre-distortion method are provided. In the method, pre-distortion, digital-to-analog conversion and an amplifying process are performed on an input signal in sequence, to generate an output signal. A first bandwidth of the input signal after the pre-distortion is greater than a second bandwidth of the input signal after the digital-to-analog conversion. Signals outside the second bandwidth are filtered out from the output signal, to generate a second output signal. A third output signal, which is a signal after a pre-distorted signal is amplified, is estimated according to the pre-distorted signal and the second output signal. The pre-distorted signal is a signal after the pre-distortion is performed on the input signal. A third bandwidth of the third output signal is greater than the second bandwidth. Parameters of the pre-distortion can be determined according to the third output signal and the pre-distorted signal.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 8, 2020
    Assignee: Sercomm Corporation
    Inventors: Kun-Lin Chiang, Jia-Ming Chen
  • Publication number: 20200196160
    Abstract: A multi-cell coordination system and a channel calibration method thereof are provided. A reference apparatus receives a beam-precoding downlink reference signal via a directional beam from a base station. The base station receives a beam-precoding uplink reference signal via the directional beam from the reference apparatus. The server receives uplink and downlink channel information, where the uplink channel information is generated based on the uplink reference signal, and the downlink channel information is generated based on the downlink reference signal. The server obtains a channel calibration coefficient according to the uplink and downlink channel information. The channel calibration coefficient is used for estimating a downlink channel. Accordingly, the problem of conventional coordination system can be solved, and the embodiment can be implemented in multi-beam base station.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 18, 2020
    Applicant: Sercomm Corporation
    Inventors: Kun-Lin Chiang, Jia-Ming Chen
  • Patent number: 10506636
    Abstract: A transceiving apparatus and a spectrum access controlling method thereof are provided. The transceiving apparatus may utilize an unlicensed spectrum. In the method, feedback information related to accessing the unlicensed spectrum is received. An energy detection threshold is modified according to the feedback information. Whether to access the unlicensed spectrum is determined according to the modified energy detection threshold. If a signal strength detected on the unlicensed spectrum is greater than the energy detection threshold, an access to the unlicensed spectrum is disabled. If the signal strength detected on the unlicensed spectrum is not greater than the energy detection threshold, the access to the unlicensed spectrum is performed. Accordingly, the chance that a data transmission collision occurs is decreased, and a utilization rate of the unlicensed spectrum is improved.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: December 10, 2019
    Assignee: Sercomm Corporation
    Inventor: Kun-Lin Chiang
  • Publication number: 20190159250
    Abstract: A transceiving apparatus and a spectrum access controlling method thereof are provided. The transceiving apparatus may utilize an unlicensed spectrum. In the method, feedback information related to accessing the unlicensed spectrum is received. An energy detection threshold is modified according to the feedback information. Whether to access the unlicensed spectrum is determined according to the modified energy detection threshold. If a signal strength detected on the unlicensed spectrum is greater than the energy detection threshold, an access to the unlicensed spectrum is disabled. If the signal strength detected on the unlicensed spectrum is not greater than the energy detection threshold, the access to the unlicensed spectrum is performed. Accordingly, the chance that a data transmission collision occurs is decreased, and a utilization rate of the unlicensed spectrum is improved.
    Type: Application
    Filed: December 12, 2017
    Publication date: May 23, 2019
    Applicant: Sercomm Corporation
    Inventor: Kun-Lin Chiang
  • Patent number: 8747587
    Abstract: A multi-layered material and a method for making the same are provided. The multi-layered material includes a first foamed layer, a substrate, a second foamed layer, and a surface layer. The first foamed layer has a plurality of first cells. The substrate is a fabric. The second foamed layer has a plurality of second cells. The foaming method of the second foamed layer is different from that of the first foamed layer. The size of the second cells is different from that of the first cells. The variation in size of the second cells is different from that of the first cells. The surface layer is disposed on the second foamed layer. Thus, when the multi-layered material is used as a surface cover of a ball, it can provide excellent resilience and control, and improve manufacturing efficiency.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: June 10, 2014
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, Yung-Yu Fu, Kun-Lin Chiang, Jung-Ching Chang, Chih-Chenh Lin, Chun-Wei Wu, Pei-Huo Huang, I-Peng Yao
  • Publication number: 20120021662
    Abstract: The present invention relates to a laminated material and a method for making the same. The laminated material includes a main layer, a surface layer and an adhesion layer. The main layer at least includes a first polymer resin. The surface layer is disposed on the main layer, the material of the surface layer is a second polymer resin, and the solid content of the second polymer resin is less than that of the first polymer resin. The adhesion layer is disposed under the main layer, and the material of the adhesion layer is thermoplastic resin which is adhesive when being heated, so that the laminated material can be directly attached to another element, thereby simplifying the process and reducing cost.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 26, 2012
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: CHUNG-CHIH FENG, YUNG-YU FU, KUN-LIN CHIANG, JUNG-CHING CHANG, CHIH-CHENH LIN, CHUN-WEI WU, PEI-HUO HUANG, I-PENG YAO
  • Publication number: 20110277910
    Abstract: A method for making an elastic laminate includes providing adhesive on each of two sides of a highly porous foil to form a polygonal reticulate adhesive film which includes a plurality of polygonal adhesive dots spaced from one another by a plurality of adhesive-free linear gaps, or which includes a plurality of hollow polygonal adhesive units connected to one another and each encloses a polygonal adhesive-free gap. Two sheets of elastic layers are adhered by the adhesive to the sides of the highly porous foil so that polygonal reticulate gaps exist between the highly porous foil and the elastic layer, providing a laminate with moisture-absorbing, permeable, quick drying, thermally insulating, and elastic properties.
    Type: Application
    Filed: July 20, 2011
    Publication date: November 17, 2011
    Inventors: Ko-Feng Wang, I-Peng Yao, Kun-Lin Chiang
  • Publication number: 20110250811
    Abstract: A multi-layered material and a method for making the same are provided. The multi-layered material includes a first foamed layer, a substrate, a second foamed layer, and a surface layer. The first foamed layer has a plurality of first cells. The substrate is a fabric. The second foamed layer has a plurality of second cells. The foaming method of the second foamed layer is different from that of the first foamed layer. The size of the second cells is different from that of the first cells. The variation in size of the second cells is different from that of the first cells. The surface layer is disposed on the second foamed layer. Thus, when the multi-layered material is used as a surface cover of a ball, it can provide excellent resilience and control, and improve manufacturing efficiency.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 13, 2011
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: CHUNG-CHIH FENG, YUNG-YU FU, KUN-LIN CHIANG, JUNG-CHING CHANG, CHIH-CHENH LIN, CHUN-WEI WU, PEI-HUO HUANG, I-PENG YAO
  • Patent number: 7794796
    Abstract: In a method for making extensible artificial leather, a substrate is supported on in-extensible woven cloth and firmly located on a coating machine. A highly solid-containing water-based polyurethane resin is coated on the substrate to form a middle layer with tiny open cells. The middle layer is dried, and the woven cloth is removed from the substrate. A superficial layer of polyurethane is attached to the middle layer in a dry process so that the extensible artificial leather is made with excellent strength against peeling, abrasion and dissolution.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: September 14, 2010
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, Chun-Wei Wu, Kun-Lin Chiang, Yung-Ching Huang
  • Publication number: 20080187715
    Abstract: A method for making an elastic laminate includes providing adhesive on each of two sides of a highly porous foil to form a polygonal reticulate adhesive film which includes a plurality of polygonal adhesive dots spaced from one another by a plurality of adhesive-free linear gaps, or which includes a plurality of hollow polygonal adhesive units connected to one another and each encloses a polygonal adhesive-free gap. Two sheets of elastic layers are adhered by the adhesive to the sides of the highly porous foil so that polygonal reticulate gaps exist between the highly porous foil and the elastic layer, providing a laminate with moisture-absorbing, permeable, quick drying, thermally insulating, and elastic properties.
    Type: Application
    Filed: April 2, 2008
    Publication date: August 7, 2008
    Inventors: Ko-Feng Wang, I-Peng Yao, Kun-Lin Chiang
  • Publication number: 20080145613
    Abstract: A method is provided for making extensible artificial leather. In the method, a substrate is supported on in-extensible woven cloth and locating the substrate firmly on a coating machine. Foamy highly solid-containing water-based polyurethane resin is coated on the substrate for forming a middle layer with tiny open cells. The middle layer is dried and the woven cloth is removed from the substrate. A superficial layer of polyurethane is attached to the middle layer in a dry process so that the extensible artificial leather is made with excellent strength against peeling, abrasion and dissolution.
    Type: Application
    Filed: January 2, 2007
    Publication date: June 19, 2008
    Inventors: Chung-Chih Feng, Chun-Wei Wu, Kun-Lin Chiang, Yung-Ching Huang
  • Publication number: 20060160449
    Abstract: There is disclosed a moisture-absorbing, quick drying, thermally insulating, elastic, composite material and a method for making the same. Adhesive is provided on the top and bottom of a highly porous foil so that the adhesive does not form a continuous film. By means of the adhesive, two sheets of elastic fabric are adhered to the top and bottom of the highly porous foil in order to provide a composite material. The composite material is low in density and high in porosity. As the adhesive does not form a continuous film, the composite material is highly porous and is called a moisture-absorbing, quick drying, thermally insulating, elastic, composite material.
    Type: Application
    Filed: November 9, 2005
    Publication date: July 20, 2006
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Ko-Feng Wang, I-Peng Yao, Kun-Lin Chiang