Patents by Inventor Yu-Chen Chang
Yu-Chen Chang 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: 7953963Abstract: A computer-based method for automatically loading software components is disclosed. The method includes the steps of: powering on a computer, identifying whether there is an identifier recorded in a desktop management interface (DMI) in a BIOS of the computer, and detecting that the computer is installed with a non-Windows based operating system if the DMI includes an identifier, and that the computer is installed with a Windows based operating system if there is no identifier recorded in the DMI; loading specified application software to the computer if the computer is installed with the Windows based operating system. A related system is also disclosed.Type: GrantFiled: September 26, 2007Date of Patent: May 31, 2011Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Yu-Chen Chang, Ming-Yi Chen
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Publication number: 20110101285Abstract: A conductive paste includes: at least one metal powder, an organic vehicle, a glass and a surfactant having a representative formula as follows: Mx(R)y(Q)z, wherein M is selected from a metal element and a semiconductive element, R is hydrophilic group directly connected to M and one will be able to hydrolyze by water to form another hydrophilic group, and Q is a hydrophobic group. The hydrophilic functional group of the surfactant will attach on the metal powder surface closely. Therefore, the surfactant can disperse the metal powder in the organic vehicle well and prevent paste from aggregating.Type: ApplicationFiled: March 3, 2010Publication date: May 5, 2011Inventors: Chu-Lung Chao, Yu-Chen Chang, Chong-Chieh Cheng, Ying-Chih Lu, Cheng-Hsun Lin, Wen-Jui Huang
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Publication number: 20110037387Abstract: A light-emitting diode lamp includes a light engine, a power assembly, and a heatsink. The light engine includes a plurality of light-emitting diodes, and the power assembly includes a socket disposed at one end of the power assembly and a heat spreader plate disposed at another end of the power assembly opposite the socket. The light engine is mounted to the heat spreader plate. The power assembly further includes a power supply circuit that is electrically coupled to the socket and to the light engine. The socket is configured to electrically couple the power supply circuit to an external electrical source. The heatsink encircles the power assembly and is thermally connected to the light engine. The heatsink also includes a plurality of perforations, which are arranged to facilitate a natural convection airflow over and through the heatsink.Type: ApplicationFiled: October 26, 2010Publication date: February 17, 2011Applicant: Enertron, Inc.Inventors: Der Jeou Chou, Ming Yi Chan, Yu Chen Chang
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Publication number: 20110023120Abstract: A method and a system for cleaning malicious software (malware), a computer program product, and a storage medium are provided. A relation graph is established to associate processes in an operating system and related elements. A node marking action is performed on the relation graph when a predetermined condition is satisfied. The node corresponding to a malicious process and its related nodes are marked with a first label. The nodes of other normal processes and their related nodes are marked with a second label. Then, those nodes marked with both the first label and the second label are screened, so that each of the nodes is marked with only the first label or the second label. Finally, the processes and elements corresponding to the nodes marked with the first label are removed.Type: ApplicationFiled: October 1, 2009Publication date: January 27, 2011Applicant: INSTITUTE FOR INFORMATION INDUSTRYInventors: Shih-Yao Dai, Yu-Chen Chang, Jain-Shing Wu, Chih-Hung Lin, Yen-Nun Huang, Sy-Yen Kuo
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Publication number: 20100117278Abstract: A vacuum sucker for workpiece having through holes comprises a vacuum cup and a vacuum accessory. The vacuum cup is provided with a combining section and a vacuum chamber. The vacuum accessory is provided with an assembling section and a suction head having an abutting surface. The vacuum accessory is defined with a passage, the assembling section of the vacuum accessory is screwed with the combining section of the vacuum cup, so that the suction head of the vacuum accessory is located in the vacuum chamber of the vacuum cup. Thereby, the abutting surface of the vacuum accessory can seal the through holes of the workpiece so as to prevent air from outside from entering the vacuum sucker, and the passage of the vacuum accessory is used to vacuum the vacuum chamber of the vacuum cup, thus sucking the workpiece successfully.Type: ApplicationFiled: November 11, 2008Publication date: May 13, 2010Inventors: Yu-Chen Chang, Chih-Hsien Chao
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Patent number: 7704293Abstract: The invention is related to a turbulence device used for air filtration system. The turbulence device comprises a porous plate and a spoiler. The porous plate has a plural number of holes located on one side of the spoiler. The spoiler has a square hole. The turbulence device in the invention is used for an air filtration system and its testing to increase even mixing of the air and a plural number of fine particles in the air and increase the efficiency for the air filtration system. In the testing of the air filtration system, even mixing of the air and the fine particles can improve the accuracy of the air filtration system and avoid the use of unqualified air filtration system to harm the environment.Type: GrantFiled: October 23, 2007Date of Patent: April 27, 2010Assignee: Institute of Nuclear Energy ResearchInventors: Wen-Hwa Wang, Yu-Chen Chang, Kui-Yuan Cheng
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Publication number: 20100066654Abstract: A three-dimensional display device including a collimated backlight module, a first display panel, a second display panel, and a lens array is provided. The collimated backlight module has a light-emitting surface and provides a light with a divergent angle smaller than 10° from the light-emitting surface. The first display panel having a plurality of first pixels is disposed on the collimated backlight module. The second display panel has a plurality of second pixels corresponding to the first pixels. The first display panel is disposed between the second display panel and the collimated backlight module. A depth distance is formed between the first display panel and the second display panel. The lens array is disposed adjacent to the second display panel and has a plurality of lenses corresponding to the second pixels. Therefore, the three-dimensional display device is capable of providing a wide visual angle and desirable depth characteristics.Type: ApplicationFiled: November 13, 2008Publication date: March 18, 2010Applicant: Chunghwa Picture Tubes, LTD.Inventors: Yi-Pai Huang, Ching-Yi Hsu, Yu-Chen Chang, Chih-Ping Su, Chia-Lin Liu
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Publication number: 20090303731Abstract: A light-transmittable cover for a light-emitting diode bulb is provided on a bulb adaptor having at least one light-emitting diode and covers the light-emitting diode. The light-transmittable cover comprises a reflective layer on an outside surface of a top thereof to reflect the light emitted from the light-emitting diode to an area where the light-emitting diode cannot reach.Type: ApplicationFiled: June 8, 2008Publication date: December 10, 2009Inventor: Yu-Chen Chang
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Publication number: 20090101018Abstract: The invention is related to a turbulence device used for air filtration system. The turbulence device comprises a porous plate and a spoiler. The porous plate has a plural number of holes located on one side of the spoiler. The spoiler has a square hole. The turbulence device in the invention is used for an air filtration system and its testing to increase even mixing of the air and a plural number of fine particles in the air and increase the efficiency for the air filtration system. In the testing of the air filtration system, even mixing of the air and the fine particles can improve the accuracy of the air filtration system and avoid the use of unqualified air filtration system to harm the environment.Type: ApplicationFiled: October 23, 2007Publication date: April 23, 2009Inventors: WEN-HWA WANG, Yu-Chen CHANG, Kui-Yuan CHENG
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Publication number: 20080189699Abstract: A computer-based method for automatically loading software components is disclosed. The method includes the steps of: powering on a computer, identifying whether there is an identifier recorded in a desktop management interface (DMI) in a BIOS of the computer, and detecting that the computer is installed with a non-Windows based operating system if the DMI includes an identifier, and that the computer is installed with a Windows based operating system if there is no identifier recorded in the DMI; loading specified application software to the computer if the computer is installed with the Windows based operating system. A related system is also disclosed.Type: ApplicationFiled: September 26, 2007Publication date: August 7, 2008Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: YU-CHEN CHANG, MING-YI CHEN
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Patent number: 7313466Abstract: An exemplary method for automatically detecting a type of a CPU fan includes: setting a PWM duty cycle of the CPU fan to a value of 100%; obtaining revolutions of the CPU fan at the PWM duty cycle in a fixed time period; calculating an RPM of the CPU fan as a full RPM; setting the PWM duty cycle of the CPU fan to another value below 100%; obtaining the revolutions of the CPU fan in the fixed time period, and calculating the RPM of the CPU fan as a test RPM; determining whether the test RPM is less than the full RPM; identifying the type of the CPU fan as a four-pin CPU fan if the test RPM is less than the full RPM; and identifying the type of the CPU fan as a three-pin CPU fan if the test RPM is not less than the full RPM.Type: GrantFiled: June 2, 2006Date of Patent: December 25, 2007Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Yu-Chen Chang
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Patent number: 7221240Abstract: The present invention is to provide a narrow bandpass filter installed on a circuit board for suppressing a high-frequency harmonic wave, which uses a metal microstrip method to directly build a microstrip circuit corresponding to a narrow bandpass filter on a circuit board of a wireless communication product and uses an interdigital finger method to lay a capacitor microstrip of the microstrip circuit on the circuit board to avoid the capacitor microstrip occupying too much area of the circuit board and maximizes the usable space of the circuit board, so that the wireless communication product can suppress a second or higher harmonic spurious noise of the wireless communication product without using an additional high-frequency filter, and thus can greatly lower the manufacturing cost of the wireless communication product and effectively reduce the electromagnetic interference.Type: GrantFiled: February 1, 2005Date of Patent: May 22, 2007Assignee: Alpha Networks Inc.Inventor: Yu-Chen Chang
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Publication number: 20070019383Abstract: A method for automatically detecting a type of a CPU fan is disclosed. The method includes the steps of: setting a PWM duty cycle of the CPU fan to 100%; obtaining revolutions of the CPU fan at the PWM duty cycle in a fixed time period; calculating a RPM of the CPU fan as a full RPM; setting the PWM duty cycle of the CPU fan to a value below 100%; obtaining the revolutions of the CPU fan in said fixed time period, and calculating the RPM of the CPU fan as a test RPM; determining whether the test RPM is less than the full RPM; identifying the type of the CPU fan as a four-pin CPU fan if the test RPM is less than the full RPM; and identifying the type of the CPU fan as a three-pin CPU fan if the test RPM is not less than the full RPM.Type: ApplicationFiled: June 2, 2006Publication date: January 25, 2007Inventor: Yu-Chen Chang
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Patent number: 7098759Abstract: The present invention is to provide a harmonic spurious signal suppression filter, which comprises microstrip lines disposed on a printed circuit board of a wireless network product, wherein one end of a microstrip input end is perpendicularly connected to one end of a first microstrip line, one end of a microstrip output end is perpendicularly connected to one end of a fourth microstrip line, the first and fourth microstrip lines are interwovenly arranged in an interdigital finger form, a second microstrip line is extended from both the microstrip input and output ends, and each end of the second microstrip line corresponding to the location of the first and fourth microstrip lines is connected to a third microstrip line of a meandering shape.Type: GrantFiled: October 19, 2004Date of Patent: August 29, 2006Assignee: Alpha Networks Inc.Inventor: Yu-Chen Chang
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Publication number: 20060170518Abstract: The present invention is to provide a narrow bandpass filter installed on a circuit board for suppressing a high-frequency harmonic wave, which uses a metal microstrip method to directly build a microstrip circuit corresponding to a narrow bandpass filter on a circuit board of a wireless communication product and uses an interdigital finger method to lay a capacitor microstrip of the microstrip circuit on the circuit board to avoid the capacitor microstrip occupying too much area of the circuit board and maximizes the usable space of the circuit board, so that the wireless communication product can suppress a second or higher harmonic spurious noise of the wireless communication product without using an additional high-frequency filter, and thus can greatly lower the manufacturing cost of the wireless communication product and effectively reduce the electromagnetic interference.Type: ApplicationFiled: February 1, 2005Publication date: August 3, 2006Applicant: Alpha Networks Inc.Inventor: Yu-Chen Chang
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Publication number: 20060082424Abstract: The present invention is to provide a harmonic spurious signal suppression filter, which comprises microstrip lines disposed on a printed circuit board of a wireless network product, wherein one end of a microstrip input end is perpendicularly connected to one end of a first microstrip line, one end of a microstrip output end is perpendicularly connected to one end of a fourth microstrip line, the first and fourth microstrip lines are interwovenly arranged in an interdigital finger form, a second microstrip line is extended from both the microstrip input and output ends, and each end of the second microstrip line corresponding to the location of the first and fourth microstrip lines is connected to a third microstrip line of a meandering shape.Type: ApplicationFiled: October 19, 2004Publication date: April 20, 2006Applicant: Alpha Networks Inc.Inventor: Yu-Chen Chang
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Publication number: 20050142282Abstract: A process for making water-repellent electrode comprises: A. mixing Pt/C catalyst powder with a solvent and ionomer for forming an ionomer-coated catalyst powder; B. mixing carbon fiber, carbon powder with a solvent and a hydrophobic polymer for forming a hydrophobic powder coated with the hydrophobic polymer; and C. homogeneously blending the catalyst powder and the hydrophobic powder in a solvent for forming a suspension, which is then filtered and printed on a carbon paper or carbon cloth by transfer printing, and further dried to obtain a hydrophobic electrode.Type: ApplicationFiled: December 16, 2004Publication date: June 30, 2005Inventors: Yu-Chen Chang, Huan-Hsiung Tseng, Jia-Yun Jiang, Hung-Wen Chen, Chih-Wei Chu, Li-Chen Chang
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Patent number: 6903235Abstract: The present invention relates to pharmaceutical-grade ferric citrate. Pharmaceutical-grade ferric citrate contains a definite composition and a definite hydrate. The present invention also relates to a method using a solid—solid reaction to produce pharmaceutical-grade ferric citrate. The present invention also relates to a pharmaceutical composition comprising a therapeutically effective amount of pharmaceutical-grade ferric citrate and a food comprising pharmaceutical-grade ferric citrate.Type: GrantFiled: October 8, 2003Date of Patent: June 7, 2005Assignee: Panion & BF Biotech Inc.Inventors: Yih-Ming Hsiao, Hsueh-Hung Chiu, Hsiu-Ching Wang, Yu-Chen Chang
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Publication number: 20050080283Abstract: The present invention relates to pharmaceutical-grade ferric citrate. Pharmaceutical-grade ferric citrate contains a definite composition and a definite hydrate. The present invention also relates to a method using a solid-solid reaction to produce pharmaceutical-grade ferric citrate. The present invention also relates to a pharmaceutical composition comprising a therapeutically effective amount of pharmaceutical-grade ferric citrate and a food comprising pharmaceutical-grade ferric citrate.Type: ApplicationFiled: October 8, 2003Publication date: April 14, 2005Inventors: Yih-Ming Hsiao, Hsueh-Hung Chiu, Hsiu-Ching Wang, Yu-Chen Chang
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Patent number: 5993881Abstract: Anthocyanin containing fractions isolated from tart cherries and exhibiting inhibition of oxidation when introduced into various materials is described. The fractions are particularly useful in high and low moisture foods.Type: GrantFiled: April 16, 1998Date of Patent: November 30, 1999Assignee: Board of Trustees operating Michigan State UniversityInventors: James Ian Gray, Alden M. Booren, Muraleedharan G. Nair, Yu-Chen Chang, Gale M. Strasburg, Haibo Wang, Enayat A. Gomaa