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: 20240134736Abstract: 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: ApplicationFiled: October 23, 2023Publication date: April 25, 2024Inventors: Yuncong Chen, LuAn Tang, Yanchi Liu, Zhengzhang Chen, Haifeng Chen
-
Publication number: 20240104344Abstract: 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: ApplicationFiled: September 14, 2023Publication date: March 28, 2024Inventors: LuAn Tang, Peng Yuan, Yuncong Chen, Haifeng Chen, Yuji Kobayashi, Jiafan He
-
Publication number: 20240086586Abstract: A computer-implemented method for simulating vehicle data and improving driving scenario detection is provided.Type: ApplicationFiled: September 11, 2023Publication date: March 14, 2024Inventors: LuAn Tang, Shepard Jiang, Peng Yuan, Yuncong Chen, Haifeng Chen, Yuji Kobayashi
-
Patent number: 10948315Abstract: 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: GrantFiled: December 21, 2018Date of Patent: March 16, 2021Assignee: Industrial Technology Research InstituteInventors: Yu-Ming Wang, Chen-Chung Du, Brian Luan Chen, Jen-Yuan Chang, Jwu-Sheng Hu
-
Publication number: 20200200568Abstract: 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: ApplicationFiled: December 21, 2018Publication date: June 25, 2020Inventors: Yu-Ming Wang, Chen-Chung Du, Brian Luan Chen, Jen-Yuan Chang, Jwu-Sheng Hu
-
Patent number: 9456283Abstract: 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: GrantFiled: November 20, 2013Date of Patent: September 27, 2016Assignee: 3-O LAB CO. LTD.Inventors: Dar-Ming Chiang, Jen-Luan Chen, E-Hung Lu
-
Publication number: 20150071468Abstract: 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: ApplicationFiled: November 20, 2013Publication date: March 12, 2015Applicant: 3-O Lab Co. Ltd.Inventors: Dar-Ming CHIANG, Jen-Luan CHEN, E-Hung LU
-
Publication number: 20140013581Abstract: 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: ApplicationFiled: September 19, 2013Publication date: January 16, 2014Applicant: Taiwan Electrets Electronics Co., Ltd.Inventors: Dar-Ming CHIANG, Jen-Luan CHEN, I-Hui LIN
-
Patent number: 8600083Abstract: 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: GrantFiled: December 3, 2010Date of Patent: December 3, 2013Assignee: Taiwan Electrets Electronics Co., Ltd.Inventors: Dar-ming Chiang, Jen-luan Chen, I-hui Lin
-
Patent number: 8259090Abstract: 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: GrantFiled: September 2, 2009Date of Patent: September 4, 2012Assignee: Taiwan Electrets Electronics Co., Ltd.Inventors: Dar-ming Chiang, Jen-luan Chen, Shu-ru Lin, Yan-ren Chen
-
Publication number: 20120014543Abstract: 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: ApplicationFiled: December 3, 2010Publication date: January 19, 2012Applicant: Taiwan Electrets Electronics Co., LTD.Inventors: Dar-ming Chiang, Jen-luan Chen, I-hui Lin
-
Patent number: 7879446Abstract: 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: GrantFiled: July 12, 2007Date of Patent: February 1, 2011Assignee: Industrial Technology Research InstituteInventors: Jonq-Min Liu, Dar-Ming Chiang, Jen-Luan Chen, Mei-Rurng Tseng
-
Publication number: 20100309145Abstract: 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: ApplicationFiled: September 2, 2009Publication date: December 9, 2010Applicant: TAIWAN ELECTRETS ELECTRONICS CO., LTD.Inventors: DAR-MING CHIANG, Jen-luan Chen, Shu-ru Lin, Yan-ren Chen
-
Patent number: 7732547Abstract: 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: GrantFiled: July 12, 2007Date of Patent: June 8, 2010Assignee: Industrial Technology Research InstituteInventors: Jen-Luan Chen, Dar-Ming Chiang, Wen-Liang Liu
-
Patent number: 7527887Abstract: 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: GrantFiled: June 10, 2004Date of Patent: May 5, 2009Assignee: Industrial Technology Research InstituteInventors: Jong-Pyng Chen, Jen-Luan Chen, Chih-Jer Shih, Chih-Yuan Chen
-
Patent number: 7498699Abstract: 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: GrantFiled: March 1, 2004Date of Patent: March 3, 2009Assignee: Industrial Technology Research InstituteInventors: Dar-Ming Chiang, Wen-Liang Liu, Jen-Luan Chen, Lon-Cheng Cheng
-
Publication number: 20090017295Abstract: 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: ApplicationFiled: July 12, 2007Publication date: January 15, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: JONQ-MIN LIU, DAR-MING CHAING, JEN-LUAN CHEN, MEI-RURNG TSENG
-
Publication number: 20090018269Abstract: 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: ApplicationFiled: July 12, 2007Publication date: January 15, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jen-Luan CHEN, Dar-Ming CHIANG, Wen-Liang LIU
-
Patent number: 7317052Abstract: 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: GrantFiled: November 29, 2004Date of Patent: January 8, 2008Assignee: Industrial Technology Research InstituteInventors: Jen-Luan Chen, Jhi-Hsien Huang, Wen-Liang Liu, Chih-Yang Yeh, Tsung-Lung Yang, Lon-Cheng Cheng
-
Publication number: 20060221265Abstract: 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: ApplicationFiled: March 31, 2005Publication date: October 5, 2006Inventors: Luan Chen, James Hicks, Jeffrey Whitelaw