Patents by Inventor Wei-Wen Hu
Wei-Wen Hu 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).
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Patent number: 11732231Abstract: The present invention relates to a composite membrane. The composite membrane includes: an elastic polymer substrate having a first surface processed by a surface modification; and a thermosensitive conductive layer formed on the first surface by performing a co-polymerization process, allowing an electrical current to pass through, and altering a hydrophilicity of a membrane surface in response to a change of a temperature.Type: GrantFiled: October 22, 2020Date of Patent: August 22, 2023Assignee: NATIONAL CENTRAL UNIVERSITYInventors: Wei-Wen Hu, Chia-Wen Tsao
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Publication number: 20220088603Abstract: The present invention relates to a bioreactor. The bioreactor includes a fluidic channel layer including a set of channels configured to generate a suction caused by a negative pressure or a retrieval force caused by a positive pressure; an elastic conductive layer configured with a pair of electrodes, configured on the fluidic channel layer, driven by the suction or the retrieval force to have a deformation toward a deformation direction, and receiving a voltage difference by the pair of the electrodes to form an electrical field along an electrical field direction; and a culture layer configured on the elastic conductive layer and providing for a biological tissue to culture in vitro on the elastic conductive layer.Type: ApplicationFiled: October 23, 2020Publication date: March 24, 2022Applicant: National Central UniversityInventors: CHIA-WEN TSAO, WEI-WEN HU
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Publication number: 20220089990Abstract: The present invention relates to a composite membrane. The composite membrane includes: an elastic polymer substrate having a first surface processed by a surface modification; and a thermosensitive conductive layer formed on the first surface by performing a co-polymerization process, allowing an electrical current to pass through, and altering a hydrophilicity of a membrane surface in response to a change of a temperature.Type: ApplicationFiled: October 22, 2020Publication date: March 24, 2022Applicant: National Central UniversityInventors: WEI-WEN HU, CHIA-WEN TSAO
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Publication number: 20210162090Abstract: The present invention provides a composite fiber which comprises an alginate fiber, a polymer material, an antibacterial agent, and a plasmid encoding growth factor-gene. The present invention also provides a wound dressing, wherein the wound dressing comprises a composite fiber as described above. The composite fibers prepared according to the present invention are capable of releasing the antibacterial agent and the growth factor gene, not only to reduce microorganism growth, but also to secrete growth factors in a wound site through transfection, thereby promoting wound healing.Type: ApplicationFiled: November 29, 2019Publication date: June 3, 2021Applicant: National Central UniversityInventors: Wei-Wen Hu, Yu-Ting Lin
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Publication number: 20180316432Abstract: A device for eliminating optical noise receives an optical signal, and includes a first filter which transmits light falling within a same wavelength range as the optical signal, so as to output a filtered signal including the optical signal and first background noise, a second filter which transmits light having a wavelength falling outside the wavelength range of the optical signal, so as to output second background noise, a converter which converts the filtered signal into a first electrical signal and converts the second background noise into a second electrical signal, and an operational unit which performs a mathematical operation on products respectively of the first and second electrical signals and first and second parameters, to result in an output signal.Type: ApplicationFiled: August 9, 2017Publication date: November 1, 2018Inventors: Da-Huei LEE, Wei-Wen HU, Hsin-I LEE
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Patent number: 10097267Abstract: A device for eliminating optical noise receives an optical signal, and includes a first filter which transmits light falling within a same wavelength range as the optical signal, so as to output a filtered signal including the optical signal and first background noise, a second filter which transmits light having a wavelength falling outside the wavelength range of the optical signal, so as to output second background noise, a converter which converts the filtered signal into a first electrical signal and converts the second background noise into a second electrical signal, and an operational unit which performs a mathematical operation on products respectively of the first and second electrical signals and first and second parameters, to result in an output signal.Type: GrantFiled: August 9, 2017Date of Patent: October 9, 2018Assignee: SOUTHERN TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Da-Huei Lee, Wei-Wen Hu, Hsin-I Lee
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Patent number: 9900192Abstract: A method of demodulating a signal packet includes steps of: determining whether a pulse width of each of pulses of one of bits of the signal packet is associated with bit 0 or bit 1; updating first counting data associated with a number of the pulses that define bit 0, and determining whether the first counting data is greater than a first threshold value; deciding that said one of the bits of the signal packet is a bit 0; updating second counting data associated with a number of the pulses that define bit 1, and determining whether the second counting data is greater than the second threshold value; deciding that said one of the bits of the signal packet is a bit 1.Type: GrantFiled: August 31, 2016Date of Patent: February 20, 2018Assignee: RADIANT OPTO-ELECTRONICS CORPORATIONInventors: Wei-Wen Hu, Jon-Hong Lin, Chun-Yi Sun
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Patent number: 9883569Abstract: A lamp control system includes at least one first lamp network, at least one second lamp network and a lamp control gateway. The first lamp network is configured to emit light and to transmit a first message, and includes a first physical layer. The second lamp network is configured to emit light and to transmit a first message, and includes a second physical layer different from the first physical layer. The lamp control gateway includes a processing module that is configured to receive the first message and the second message and to convert the first message and the second message in such a way that a first converted message and a second converted message comply with a predefined protocol.Type: GrantFiled: April 28, 2016Date of Patent: January 30, 2018Assignee: Radiant Opto-Electronics CorporationInventors: Wei-Wen Hu, Peng-Hsiang Wu, Jon-Hong Lin, Chun-Yi Sun
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Publication number: 20170063581Abstract: A method of demodulating a signal packet includes steps of: determining whether a pulse width of each of pulses of one of bits of the signal packet is associated with bit 0 or bit 1; updating first counting data associated with a number of the pulses that define bit 0, and determining whether the first counting data is greater than a first threshold value; deciding that said one of the bits of the signal packet is a bit 0; updating second counting data associated with a number of the pulses that define bit 1, and determining whether the second counting data is greater than the second threshold value; deciding that said one of the bits of the signal packet is a bit 1.Type: ApplicationFiled: August 31, 2016Publication date: March 2, 2017Inventors: Wei-Wen HU, Jon-Hong LIN, Chun-Yi SUN
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Publication number: 20160323979Abstract: A lamp control system includes at least one first lamp network, at least one second lamp network and a lamp control gateway. The first lamp network is configured to emit light and to transmit a first message, and includes a first physical layer. The second lamp network is configured to emit light and to transmit a first message, and includes a second physical layer different from the first physical layer. The lamp control gateway includes a processing module that is configured to receive the first message and the second message and to convert the first message and the second message in such a way that a first converted message and a second converted message comply with a predefined protocol.Type: ApplicationFiled: April 28, 2016Publication date: November 3, 2016Inventors: Wei-Wen HU, Peng-Hsiang WU, Jon-Hong LIN, Chun-Yi SUN
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Publication number: 20140187995Abstract: An electrode patch module, a chronic pain detection method and an apparatus thereof are provided. The electrode patch module affixed at a zone to be tested contains at least three electrode pads. The chronic pain detection apparatus selects multiple electrode pairs from the electrode pads and uses the electrode pairs to measure the zone to be tested so as to obtain multiple characteristic values of different muscle areas. The chronic pain detection apparatus receives the characteristic values for performing comparison operations to produce a result for assistant judging where the chronic pain may have in the zone to be tested.Type: ApplicationFiled: February 25, 2013Publication date: July 3, 2014Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Wei-Wen Hu, Yung-Ching Huang, Yu-Wei Hung
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Patent number: 8054838Abstract: The present invention relates to a method and an apparatus of transmitting data via a multi-protocol single-medium network. The method includes initializing a network; transmitting messages in the network; setting up the size and the protocol of the messages and assigning the messages to a multi-protocol stack of the PHY layer based on a network time sharing multitasking principle; assigning each of the messages to a proper time slot; checking whether or not all messages are assigned to the proper time slots; if yes, transmitting the messages; and receiving the messages by a network device and transmitting the messages to another network device via a single-medium network.Type: GrantFiled: April 29, 2008Date of Patent: November 8, 2011Assignee: Industrial Technology Research InstituteInventors: Yung-Ching Huang, Wei-Wen Hu, Yu-Hsien Chiu
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Patent number: 7715484Abstract: The invention relates to an orthogonal frequency division multiplexing system with PN-sequence. In the synchronization of the invention, both timing offset and frequency offset are estimated and compensated by utilizing a time and frequency synchronization device. In addition, the PN-sequence with the cyclic prefix is added to the OFDM symbol before transmitting. The time and frequency synchronization device of the invention comprises two synchronization circuits from the cyclic prefix and PN-sequence when calculating the timing offset and frequency offset of receiving signal. As a result, the OFDM system of the invention not only has better performance in fading channel, but also has the better bandwidth utilization without extra bandwidth for transmitting the PN-sequence.Type: GrantFiled: December 9, 2005Date of Patent: May 11, 2010Assignee: Industrial Technology Research InstituteInventors: Yun-Yen Chen, Chih-Peng Li, Wei-Wen Hu
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Publication number: 20090161678Abstract: The present invention relates to a method and an apparatus of transmitting data via a multi-protocol single-medium network. The method includes initializing a network; transmitting messages in the network; setting up the size and the protocol of the messages and assigning the messages to a multi-protocol stack of the PHY layer based on a network time sharing multitasking principle; assigning each of the messages to a proper time slot; checking whether or not all messages are assigned to the proper time slots; if yes, transmitting the messages; and receiving the messages by a network device and transmitting the messages to another network device via a single-medium network.Type: ApplicationFiled: April 29, 2008Publication date: June 25, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: YUNG-CHING HUANG, WEI-WEN HU, YU-HSIEN CHIU
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Publication number: 20070036234Abstract: The invention relates to an orthogonal frequency division multiplexing system with PN-sequence. In the synchronization of the invention, both timing offset and frequency offset are estimated and compensated by utilizing a time and frequency synchronization device. In addition, the PN-sequence with the cyclic prefix is added to the OFDM symbol before transmitting. The time and frequency synchronization device of the invention comprises two synchronization circuits from the cyclic prefix and PN-sequence when calculating the timing offset and frequency offset of receiving signal. As a result, the OFDM system of the invention not only has better performance in fading channel, but also has the better bandwidth utilization without extra bandwidth for transmitting the PN-sequence.Type: ApplicationFiled: December 9, 2005Publication date: February 15, 2007Inventors: Yun-Yen Chen, Chih-Peng Li, Wei-Wen Hu