Patents by Inventor Chien-Ming Wu
Chien-Ming Wu 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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Publication number: 20150381116Abstract: A power amplifier includes a gain stage, an output stage and a first capacitor. The gain stage is arranged for receiving at least a first input signal to generate a first pair of control signals. The output stage includes a first node and a second node for receiving the first pair of control signals, and the output stage generates a first output signal according to the first pair of control signals. The first capacitor is coupled between the first node and the second node.Type: ApplicationFiled: June 17, 2015Publication date: December 31, 2015Inventor: Chien-Ming Wu
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Patent number: 9147675Abstract: An integrated circuit (IC) includes a packaging body, multiple interface connectors, a functional chip, and an electrostatic discharge (ESD) protection chip. The interface connectors are located on an outer surface of the packaging body. The functional chip has an electronic functional circuit, and the ESD protection chip has an ESD protection circuit. The ESD protection circuit is connected electrically to an interface connector serving as a data exchange path.Type: GrantFiled: August 27, 2013Date of Patent: September 29, 2015Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Ta-Hsun Yeh, Tay-Her Tsaur, Chien-Ming Wu
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Publication number: 20150263870Abstract: An Ethernet network system and method for cancelling common mode signal is disclosed. The Ethernet network system, with a system frequency, utilizes the delay time point of transmitting data so as to suppress frequency spectrum generated by the Ethernet network system. In other words, delay time between a first network data signal and a second network data signal is quarter of a system signal period, delay time between the second network data signal and a third network data signal is quarter of a system signal period, and delay time between the third network data signal and a fourth network data signal is quarter of a system signal period, so as to cancel common mode signals of a first channel and a third channel and cancel common mode signals of a second channel and a fourth channel, wherein the system signal period is corresponding to the system frequency.Type: ApplicationFiled: March 10, 2015Publication date: September 17, 2015Inventor: Chien-Ming Wu
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Publication number: 20150168185Abstract: A re-modularized sensing device is disclosed, which is especially for a sensing system having a power unit, a sensing unit, a processing unit, and a transceiver unit is disclosed. The power unit provides electricity for the modularized sensing device. The sensing unit derives at least one environmental data. The processing unit has a sensing device processing application program for calculating the environmental data and generating a first outcome. The transceiver unit transfers the first outcome and a first signal to the host. And one or more modules are formed by the sensing unit, the processing unit, and the power unit, and each module is individually removable and replaceable. And an initialization method of the sensing system using the re-modularized sensing device is also disclosed.Type: ApplicationFiled: July 9, 2014Publication date: June 18, 2015Inventors: Chun-Ming HUANG, Chien-Ming Wu, Chih-Chyau Yang, Kai-Chao Yang, Shao-Min Wen, Yi-Jun Liu
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Publication number: 20150155433Abstract: A light-emitting device includes: a Distributed Bragg reflector comprising alternate first semiconductor layers and second semiconductor layers, wherein each first semiconductor layer comprises a low-refractive-index part having a depth; and a light-emitting semiconductor stack associated with the Distributed Bragg reflector; wherein the depths of the low-refractive-index parts of the first semiconductor layers are gradually changed in a direction toward the light-emitting semiconductor stack.Type: ApplicationFiled: November 29, 2013Publication date: June 4, 2015Applicant: EPISTAR CORPORATIONInventors: Wu-Tsung Lo, Yu-Chih Yang, Chien-Ming Wu, Kai-Yi Hong
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Publication number: 20150054677Abstract: A method and apparatus for sensing boundaries between materials are provided. The method for sensing boundaries between materials comprises the steps of: fixing sensing modules in place; transmitting and receiving radio frequency signals; and analyzing radio frequency signals. The method enables real-time detection of positions of the boundaries between materials and handling and monitoring of changes in the boundary positions. The apparatus for sensing boundaries between materials comprises at least two sensing modules, or a radio frequency transmitting unit and a plurality of radio frequency signals receiving unit, or a plurality of radio frequency transmitting unit and a radio frequency signals receiving unit. The radio frequency signals are transmitted, received and analyzed by the radio frequency transmitting unit and the radio frequency signals receiving unit to determine the boundary positions and changes therein.Type: ApplicationFiled: November 26, 2013Publication date: February 26, 2015Inventors: Chun-Ming HUANG, Chen-Chia Chen, Yung-Bin Lin, Chien-Ming Wu
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Patent number: 8959985Abstract: A microparticle detecting apparatus is disclosed and includes at least one detection unit, each of which includes: a first sieve having at least a first mesh, a separator stacked on one side of the first sieve and having a separator hole, and a second sieve stacked on one side of the separator and having several second meshes. The diameter of the second mesh is smaller than that of the first mesh, and the first and second meshes are misaligned with each other in a vertical direction of the first and second sieves. The detection unit further includes at least a sensor aligned with the first or second mesh for detecting microparticles trapping into the first mesh or passing through the second mesh. Therefore, the microparticle detecting apparatus is suitably used for detecting or counting any microparticles with different size, to effectively shorten the detection processes of sample fluids.Type: GrantFiled: July 12, 2012Date of Patent: February 24, 2015Assignee: National Applied Research LaboratoriesInventors: Chun-ming Huang, Chen-chia Chen, Chi-sheng Lin, Chien-ming Wu
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Publication number: 20150034155Abstract: An optoelectronic device includes: a semiconductor stack including an upper surface and a side surface; a first electrode formed on the upper surface of the semiconductor stack; a first anti-reflection structure formed on the first electrode and the upper surface; and a second anti-reflection structure different from the first anti-reflection structure formed on the side surface.Type: ApplicationFiled: August 2, 2013Publication date: February 5, 2015Applicant: EPISTAR CORPORATIONInventors: Yi-Hung LIN, Chien-Ming WU
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Patent number: 8911687Abstract: A miniature sieve apparatus is described and includes a first sieve, a separator and a second sieve from top to bottom. The first and second sieves are formed with at least one first mesh and a plurality of second meshes, respectively. The first and second meshes are misaligned with each other in a vertical direction of the first and second sieves. The miniature sieve apparatus is provided to separate or screen microparticles with different sizes, such as target cells, bio-medical particles, organic or inorganic microparticles. Additionally, the invention also provides a manufacturing method of the miniature sieve apparatus, and the same material is applied to manufacture the sieves and the separators. Thus, the problem caused by the residual thermal stress due to different material can be solved. Therefore, the cost of the miniature sieve apparatus can be lowered as the yield rate thereof is improved.Type: GrantFiled: July 12, 2012Date of Patent: December 16, 2014Assignee: National Applied Research LaboratoriesInventors: Chun-ming Huang, Chen-chia Chen, Chi-sheng Lin, Chien-ming Wu
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Patent number: 8890088Abstract: A laser cavity two-photon spectroscopy includes a gain medium, a first reflector, a second reflector, an electrical pumping module, and a two-photon absorption cell. The first reflector is disposed at a side of the gain medium. The second reflector is movably disposed at a side of the gain medium relative to the first reflector. The electrical pumping module is electrically connected to the gain medium. Therefore, the gain medium is able to emit a light beam, which bounces back and forth between the first reflector and the second reflector and forms a laser beam through enhanced by the gain medium. The two-photon absorption cell disposed between the gain medium and the second reflector includes a plurality of two-photon absorption mediums. The two-photon absorption mediums absorb a portion of the laser beam reflected between the first reflector and the second reflector and then emit fluorescence.Type: GrantFiled: January 3, 2013Date of Patent: November 18, 2014Assignee: National Central UniversityInventors: Wang-Yau Cheng, Chien-Ming Wu, Tze-Wei Liu, You-Huan Chen
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Patent number: 8861160Abstract: The present invention provides an integrated circuit having a better ESD protection capability and capable of reducing a circuit layout area. The integrated circuit comprises: an internal circuit, a first pad, and at least a first impedance matching unit. The first impedance matching unit is coupled between the internal circuit and the first pad, and the first impedance matching unit comprises: a first switch unit and a first resistance unit. The first switch unit is coupled to the internal circuit, and the first resistance unit is coupled between the first switch unit and the first pad, wherein the first resistance unit has a first terminal and a second terminal. The first terminal is directly electrically connected to the first pad and the second terminal is coupled to the first switch unit.Type: GrantFiled: February 22, 2012Date of Patent: October 14, 2014Assignee: Realtek Semiconductor Corp.Inventors: Chien-Ming Wu, Kai-Yin Liu
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Publication number: 20140217359Abstract: The present application discloses a light-emitting apparatus comprising a first light-emitting semiconductor stack, a first intermediate layer formed on the first light-emitting semiconductor stack and a second light-emitting semiconductor stack formed on the first intermediate layer. The first intermediate layer comprises a first conductive semiconductor layer, a second conductive semiconductor layer and an intermediate region. The intermediate region has a discontinuous structure located between the first conductive semiconductor layer and the second conductive semiconductor layer.Type: ApplicationFiled: January 28, 2014Publication date: August 7, 2014Applicant: EPISTAR CORPORATIONInventors: Chien-Ming WU, Wu-Tsung LO, Shih-Chang LEE
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Publication number: 20140145702Abstract: A constant current generating circuit and constant current generating method applied to a chip are provided, where the chip includes a first current generating circuit and a second current generating circuit, the second current generating circuit includes a transistor and an adjustable resistor. The constant current generating method includes: connecting an external resistor to the first current generating circuit to make the first current generating circuit use the external resistor to generate a first current; utilizing the second current generating circuit to generate a second current; adjusting the adjustable resistor in accordance with the first current and the second current to make the second current substantially equal to the first current, where the second current serves as a constant current of the chip.Type: ApplicationFiled: November 22, 2013Publication date: May 29, 2014Applicant: Realtek Semiconductor Corp.Inventor: Chien-Ming Wu
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Publication number: 20140061881Abstract: An integrated circuit (IC) includes a packaging body, multiple interface connectors, a functional chip, and an electrostatic discharge (ESD) protection chip. The interface connectors are located on an outer surface of the packaging body. The functional chip has an electronic functional circuit, and the ESD protection chip has an ESD protection circuit. The ESD protection circuit is connected electrically to an interface connector serving as a data exchange path.Type: ApplicationFiled: August 27, 2013Publication date: March 6, 2014Applicant: REALTEK SEMICONDUCTOR CORP.Inventors: Ta-Hsun Yeh, Tay-Her Tsaur, Chien-Ming Wu
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Publication number: 20140035815Abstract: A three-dimensional (3D) pointing device includes a housing, an inertial measurement unit, a data processing unit, a communication unit, and a power unit. The housing has a rough surface, and the inertial measurement unit is provided inside the housing and in contact with the housing. The inertial measurement unit includes a gyroscope and an accelerometer. The data processing unit is used to integrate data from the gyroscope and the accelerometer to generate an output data, so as for the communication unit to send out the output data. The power unit provides power to the 3D pointing device. The 3D pointing device enables the user to execute pointing control in a 3D space and allows the user to input commands by means of the rough surface. Thus, the 3D pointing device features both convenience of use and a small physical volume.Type: ApplicationFiled: September 12, 2012Publication date: February 6, 2014Applicant: NATIONAL APPLIED RESEARCH LABORATORIESInventors: Chun-Ming HUANG, Gang-Neng SUNG, Chien-Ming WU
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Publication number: 20140012483Abstract: A vehicle idle-speed warning system and vehicle idle-speed detection method thereof are provided. It is non-invasive, that is, there is no need to change or modify any part of the constructing parts in the engine compartment. The present invention can be adopted stand-alone, or be applied to existing popular apparatuses, such as GPS, driving recorders, smart handheld devices, and vehicle electronic equipments. With the composing elements of a motion information module, an input module, an output module, a timer module and an information processing module, the present invention can accurately determine whether the vehicle under surveillance is in idle state and for how long it is in the idle state, and send an alarm signal automatically. With the implementation of the present invention, drivers can always be alarmed with the vehicle idling situations to prevent possible dangers or coming tickets due to the violation of traffic regulations in certain countries.Type: ApplicationFiled: August 24, 2012Publication date: January 9, 2014Applicant: National Applied Research LaboratoriesInventors: Chun-Ming HUANG, Chih-Chyau YANG, Chun-Yu CHEN, Chien-Ming WU
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Publication number: 20130291628Abstract: A microparticle detecting apparatus is disclosed and includes at least one detection unit, each of which includes: a first sieve having at least a first mesh, a separator stacked on one side of the first sieve and having a separator hole, and a second sieve stacked on one side of the separator and having several second meshes. The diameter of the second mesh is smaller than that of the first mesh, and the first and second meshes are misaligned with each other in a vertical direction of the first and second sieves. The detection unit further includes at least a sensor aligned with the first or second mesh for detecting microparticles trapping into the first mesh or passing through the second mesh. Therefore, the microparticle detecting apparatus is suitably used for detecting or counting any microparticles with different size, to effectively shorten the detection processes of sample fluids.Type: ApplicationFiled: July 12, 2012Publication date: November 7, 2013Applicant: NATIONAL APPLIED RESEARCH LABORATORIESInventors: Chun-ming Huang, Chen-chia Chen, Chi-Sheng Lin, Chien-ming Wu
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Publication number: 20130288614Abstract: A transceiver and a voltage calibration method thereof are provided. The transceiver includes a transmitting circuit, a receiving circuit, and a processing circuit. The transmitting circuit generates a transmitting voltage. The receiving circuit, which is electrically connected to the transmitting circuit, receives a reference voltage and the transmitting voltage to generate a reference signal, and a measurement signal respectively. The processing circuit, which is electrically connected to the transmitting circuit and receiving circuit, calibrates the transmitting voltage according to the reference signal and the measurement signal.Type: ApplicationFiled: March 15, 2013Publication date: October 31, 2013Applicant: REALTEK SEMICONDUCTOR CORPORATIONInventor: Chien-Ming WU
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Publication number: 20130259772Abstract: A miniature sieve apparatus is described and includes a first sieve, a separator and a second sieve from top to bottom. The first and second sieves are formed with at least one first mesh and a plurality of second meshes, respectively. The first and second meshes are misaligned with each other in a vertical direction of the first and second sieves. The miniature sieve apparatus is provided to separate or screen microparticles with different sizes, such as target cells, bio-medical particles, organic or inorganic microparticles. Additionally, the invention also provides a manufacturing method of the miniature sieve apparatus, and the same material is applied to manufacture the sieves and the separators. Thus, the problem caused by the residual thermal stress due to different material can be solved. Therefore, the cost of the miniature sieve apparatus can be lowered as the yield rate thereof is improved.Type: ApplicationFiled: July 12, 2012Publication date: October 3, 2013Applicant: NATIONAL APPLIED RESEARCH LABORATORIESInventors: Chun-ming Huang, Chen-chia Chen, Chi-sheng Lin, Chien-ming Wu
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Patent number: D729232Type: GrantFiled: March 15, 2013Date of Patent: May 12, 2015Assignee: Quanta Computer Inc.Inventors: Chien-Ming Wu, Jung-Wen Chang, Shih-Yun Lee