Patents by Inventor Luan Chen

Luan 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: 20240134736
    Abstract: Methods and systems for anomaly detection include encoding a multivariate time series and a multi-type event sequence using respective transformers and an aggregation network to generate a feature vector. Anomaly detection is performed using the feature vector to identify an anomaly within a system. A corrective action is performed responsive to the anomaly to correct or mitigate an effect of the anomaly. The detected anomaly can be used in a healthcare context to support decision making by medical professionals with respect to the treatment of a patient. The encoding may include machine learning models to implement the transformers and the aggregation network using deep learning.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 25, 2024
    Inventors: Yuncong Chen, LuAn Tang, Yanchi Liu, Zhengzhang Chen, Haifeng Chen
  • Publication number: 20240104344
    Abstract: Methods and systems for training a model include distinguishing hidden states of a monitored system based on condition information. An encoder and decoder are generated for each respective hidden state using forward and backward autoencoder losses. A hybrid hidden state is determined for an input sequence based on the hidden states. The input sequence is reconstructed using the encoders and decoders and the hybrid hidden state. Parameters of the encoders and decoders are updated based on a reconstruction loss.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 28, 2024
    Inventors: LuAn Tang, Peng Yuan, Yuncong Chen, Haifeng Chen, Yuji Kobayashi, Jiafan He
  • Publication number: 20240086586
    Abstract: A computer-implemented method for simulating vehicle data and improving driving scenario detection is provided.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 14, 2024
    Inventors: LuAn Tang, Shepard Jiang, Peng Yuan, Yuncong Chen, Haifeng Chen, Yuji Kobayashi
  • Patent number: 10948315
    Abstract: A magnetic position detecting device and a method for detecting a magnetic position are provided. An induced voltage is generated by changing a position between a pattern of an inductive ruler and an alternating magnetic field of an exciting element. A position of the exciting element is resolved by a technical means of voltage resolution for positions.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 16, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Ming Wang, Chen-Chung Du, Brian Luan Chen, Jen-Yuan Chang, Jwu-Sheng Hu
  • Publication number: 20200200568
    Abstract: A magnetic position detecting device and a method for detecting a magnetic position are provided. An induced voltage is generated by changing a position between a pattern of an inductive ruler and an alternating magnetic field of an exciting element. A position of the exciting element is resolved by a technical means of voltage resolution for positions.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Inventors: Yu-Ming Wang, Chen-Chung Du, Brian Luan Chen, Jen-Yuan Chang, Jwu-Sheng Hu
  • Patent number: 9456283
    Abstract: An electrostatic electroacoustic transducer includes a first structure, a second structure and a third electrode. The third electrode is located between the first structure and the second structure. The first structure includes a first driving element, a first spacer and a first diaphragm, and the second structure includes a second driving element, a second spacer and a second diaphragm. By providing an alternating voltage source, a transformer and a bias voltage, the electrostatic electroacoustic transducer with a dual-diaphragm structure has a high efficiency and an enlarged range of audio frequency.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: September 27, 2016
    Assignee: 3-O LAB CO. LTD.
    Inventors: Dar-Ming Chiang, Jen-Luan Chen, E-Hung Lu
  • Publication number: 20150071468
    Abstract: An electrostatic electroacoustic transducer includes a first structure, a second structure and a third electrode. The third electrode is located between the first structure and the second structure. The first structure includes a first driving element, a first spacer and a first diaphragm, and the second structure includes a second driving element, a second spacer and a second diaphragm. By providing an alternating voltage source, a transformer and a bias voltage, the electrostatic electroacoustic transducer with a dual diaphragm structure has a high efficiency and an enlarged range of audio frequency.
    Type: Application
    Filed: November 20, 2013
    Publication date: March 12, 2015
    Applicant: 3-O Lab Co. Ltd.
    Inventors: Dar-Ming CHIANG, Jen-Luan CHEN, E-Hung LU
  • Publication number: 20140013581
    Abstract: An electrostatic speaker and a method for manufacturing the speaker are disclosed. Said speaker comprises a vibrating film; an electrode portion disposed on a surface of the vibrating film and joined with the vibrating film; and a conductive backplate spaced from the electrode portion by a distance, the conductive backplate forming a plurality of holes, the vibrating film being deformed and vibrated to generate and release a sound through the holes due to a variation of an electric field generated between the conductive backplate and the electrode portion, wherein the conductive backplate is covered by a polymer layer serving as a protective film. The covering polymer layer on the conductive backplate is capable of improving the stability of the electrostatic speaker and increasing its lifespan.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Applicant: Taiwan Electrets Electronics Co., Ltd.
    Inventors: Dar-Ming CHIANG, Jen-Luan CHEN, I-Hui LIN
  • Patent number: 8600083
    Abstract: An electrostatic speaker and a method for manufacturing the speaker are disclosed. Said speaker comprises a vibrating film; an electrode portion disposed on a surface of the vibrating film and joined with the vibrating film; and a conductive backplate spaced from the electrode portion by a distance, the conductive backplate forming a plurality of holes, the vibrating film being deformed and vibrated to generate and release a sound through the holes due to a variation of an electric field generated between the conductive backplate and the electrode portion, wherein the conductive backplate is covered by a polymer layer serving as a protective film. The covering polymer layer on the conductive backplate is capable of improving the stability of the electrostatic speaker and increasing its lifespan.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 3, 2013
    Assignee: Taiwan Electrets Electronics Co., Ltd.
    Inventors: Dar-ming Chiang, Jen-luan Chen, I-hui Lin
  • Patent number: 8259090
    Abstract: Disclosed is a 3-dimension non-bias electrets multi-touch device, comprising a first electrets thin film providing a first bias electric charge to form an electrostatic field, a first electrode, a second electrode and a controller. The first electrode is attached to the first electrets thin film and outputs a first signal when the electrostatic field is changed by a deformation of the first electrets thin film due to contact pressures of external forces. The second electrode outputs a second signal when the electrostatic field is changed. The first and second electrodes transmit the first and second signals to the controller. The controller is capable to detect and analyze positions where the contact pressures of the external forces are applied and normal vector shifts of the first electrets thin film at the positions.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: September 4, 2012
    Assignee: Taiwan Electrets Electronics Co., Ltd.
    Inventors: Dar-ming Chiang, Jen-luan Chen, Shu-ru Lin, Yan-ren Chen
  • Publication number: 20120014543
    Abstract: An electrostatic speaker and a method for manufacturing the speaker are disclosed. Said speaker comprises a vibrating film; an electrode portion disposed on a surface of the vibrating film and joined with the vibrating film; and a conductive backplate spaced from the electrode portion by a distance, the conductive backplate forming a plurality of holes, the vibrating film being deformed and vibrated to generate and release a sound through the holes due to a variation of an electric field generated between the conductive backplate and the electrode portion, wherein the conductive backplate is covered by a polymer layer serving as a protective film. The covering polymer layer on the conductive backplate is capable of improving the stability of the electrostatic speaker and increasing its lifespan.
    Type: Application
    Filed: December 3, 2010
    Publication date: January 19, 2012
    Applicant: Taiwan Electrets Electronics Co., LTD.
    Inventors: Dar-ming Chiang, Jen-luan Chen, I-hui Lin
  • Patent number: 7879446
    Abstract: The present invention provides a fluorinated cyclic olefin electret film including a fluorinated cyclic olefin polymer film characterized by having a cyclic olefin polymer grafted with a fluorocarbon alkyl group, and a parylene film over the fluorinated cyclic olefin polymer film.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: February 1, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Jonq-Min Liu, Dar-Ming Chiang, Jen-Luan Chen, Mei-Rurng Tseng
  • Publication number: 20100309145
    Abstract: Disclosed is a 3-dimension non-bias electrets multi-touch device, comprising a first electrets thin film providing a first bias electric charge to form an electrostatic field, a first electrode, a second electrode and a controller. The first electrode is attached to the first electrets thin film and outputs a first signal when the electrostatic field is changed by a deformation of the first electrets thin film due to contact pressures of external forces. The second electrode outputs a second signal when the electrostatic field is changed. The first and second electrodes transmit the first and second signals to the controller. The controller is capable to detect and analyze positions where the contact pressures of the external forces are applied and normal vector shifts of the first electrets thin film at the positions.
    Type: Application
    Filed: September 2, 2009
    Publication date: December 9, 2010
    Applicant: TAIWAN ELECTRETS ELECTRONICS CO., LTD.
    Inventors: DAR-MING CHIANG, Jen-luan Chen, Shu-ru Lin, Yan-ren Chen
  • Patent number: 7732547
    Abstract: The present invention provides a graft polymer and compositions comprising a cyclic olefin polymer characterized by having a glass transition temperature of about 60° C. to 250° C. and a molecular weight of about 400 to 300000, and a fluorocarbon alkyl group grafted on the cyclic olefin polymer.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: June 8, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Jen-Luan Chen, Dar-Ming Chiang, Wen-Liang Liu
  • Patent number: 7527887
    Abstract: The invention relates to the structures of proton exchange membranes with different molecular permeabilities, especially to the proton exchange membranes suitable for the applications in Direct Methanol Fuel Cell (DMFC) and with the function of recovering water from the cathode. The polymeric structures are the designs of phase separated structures of the crystalline phase and the amorphous phases, thereby limiting the swelling of the materials and the space of ionic cluster structures in nano-scale to reduce the permeability of methanol fuels On the other hand, by controlling of polymeric grafting reactions result in the reverse (from the cathode to the anode) permeability of the product water molecules on the cathode in the proton exchange materials greater than the permeability of methanol molecules in the fuels (from the anode to the cathode) due to the differences of fuel concentrations between the cathode and the anode of DMFC.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: May 5, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Jong-Pyng Chen, Jen-Luan Chen, Chih-Jer Shih, Chih-Yuan Chen
  • Patent number: 7498699
    Abstract: An electret and composite formed therewith. The electret includes a polymer, copolymerizing from monomers including VdF as a first monomer and HFP, CTFE, TFE, or combinations thereof as a second monomer.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: March 3, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Dar-Ming Chiang, Wen-Liang Liu, Jen-Luan Chen, Lon-Cheng Cheng
  • Publication number: 20090017295
    Abstract: The present invention provides a fluorinated cyclic olefin electret film including a fluorinated cyclic olefin polymer film characterized by having a cyclic olefin polymer grafted with a fluorocarbon alkyl group, and a parylene film over the fluorinated cyclic olefin polymer film.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 15, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: JONQ-MIN LIU, DAR-MING CHAING, JEN-LUAN CHEN, MEI-RURNG TSENG
  • Publication number: 20090018269
    Abstract: The present invention provides a graft polymer and compositions comprising a cyclic olefin polymer characterized by having a glass transition temperature of about 60° C. to 250° C and a molecular weight of about 400 to 300000, and a fluorocarbon alkyl group grafted on the cyclic olefin polymer.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 15, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jen-Luan CHEN, Dar-Ming CHIANG, Wen-Liang LIU
  • Patent number: 7317052
    Abstract: A fluoropolymer blend with high ionic conductivity that can be applied in electroactive polymer composite includes following components: PVDF-g-SPS (styrene-grafted and sulfonated PVDF); PVDF; and hydrocarbon- or fluoro-elastomer. PVDF-g-PS(styrene-grafted PVDF) ? PVDF and hydrocarbon- or fluoro-elastomer are mixed with specific proportion and being dissolved in an aprotic solvent ? the solution is then cast film on a substrate followed by sulfonation to give the aforementioned compound membrane. The obtained compound membrane has excellent properties, such as thermal stability, acid-alkali resistance, good mechanical performance, excellent flexibility, and capability for processing appropriate cross-link for further enhancing the mechanical performance of this membrane.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: January 8, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Jen-Luan Chen, Jhi-Hsien Huang, Wen-Liang Liu, Chih-Yang Yeh, Tsung-Lung Yang, Lon-Cheng Cheng
  • Publication number: 20060221265
    Abstract: An apparatus and methods that facilitate efficient and easy installation of a display screen and protective shield onto a cabinet of a display unit such as a projection TV (PTV) and the like. Preferably, a screen frame and bezel clip system includes a bezel clip having a latch arm releaseably coupleable to catch arm extending from or attached to a cabinet side wall of a display unit. The bezel clip further includes one or more receptacles sized and shaped to receive and retain a side or edge portion of one or more screens. The catch arm is preferably deformable under pressure and returns to a pre-stressed orientation when the pressure is removed. Alternatively, a screen frame and bezel mount system includes a stiffener member adapted to couple a bezel member to a cabinet side wall of a display unit. The bezel member includes one or more receptacles sized and shaped to receive and retain a side or edge portion of one or more screens.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 5, 2006
    Inventors: Luan Chen, James Hicks, Jeffrey Whitelaw