Patents by Inventor Chang Fa On
Chang Fa On 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: 20070247370Abstract: A chip antenna apparatus for receiving global positioning system signals, includes a L-shaped ground area and an omni-directional chip antenna. The L-shaped ground area is disposed on a circuit board. The omni-directional chip antenna is disposed in a gap of the L-shaped ground area on the circuit board and electrically connected to the L-shaped ground area.Type: ApplicationFiled: November 28, 2006Publication date: October 25, 2007Applicant: CHANT SINCERE CO., LTD.Inventors: Chuan-Lin Hu, Yu-Wei Chen, Chang-Lun Liao, Shun-Tian Lin, Chang-Fa Yang, Yen-Ming Chen, Chao-Wei Wang
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Publication number: 20070240297Abstract: A chip antenna has an antenna body and a package. The antenna body has multiple meandered metal lines and is encapsulated with the package. The material of the package is a dielectric composite formed with polymers and ceramic powders, which has a dielectric constant designed for the antenna. The characteristics of the chip antenna are determined by the structures of the antenna body and the dielectric constant of the package. Thus, a requirement for tiny structures in antenna applications can be satisfied.Type: ApplicationFiled: April 9, 2007Publication date: October 18, 2007Inventors: Chang-Fa YANG, Jen-Hsun Li, Jing-Ming Chen, Jun-Hong Lin, Shun-Tian Lin
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Publication number: 20070240322Abstract: A testing system for testing flatness of a surface of a workpiece includes a testing apparatus (10) and a processor (20). The testing apparatus includes a testing box (12) and a measuring apparatus (14). The testing box includes a plurality of holders (122); the holders define a datum plane. The measuring apparatus comprises a plurality of movable testing poles (142) extending out of the testing box and a plurality of gauges (141) configured for measuring distance of the testing poles retracting into the testing box. Ends (1421) of the testing poles away from the testing box are located at the datum plane and configured for supporting the surface of the workpiece thereon to allow the gauges measuring retracting distance of the testing poles under the pressure of the workpiece. The retracting distance of the testing poles is equal to distances between testing points on the surface of the workpieces and the datum plane.Type: ApplicationFiled: December 22, 2006Publication date: October 18, 2007Inventors: LEI LI, Zhi Cheng, Ping Chen, Ai-Ge Sun, Xue-Liang Zhai, Chang-Fa Sun
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Publication number: 20070222115Abstract: In a method for making an inspection fixture, a detachable mold assembly (20) and a hardenable fluid are firstly prepared. Secondly, the hardenable fluid is poured into the mold assembly, and a plurality of molding pins (23) are inserted into the mold assembly. Thirdly, a main body (21) with a plurality of positioning holes (2122) corresponding to the molding pins (i.e., the locations thereof) are formed in the mold after the hardenable fluid hardens. Fourthly, the mold assembly is detached, and the part is removed from the mold. Finally, a plurality of positioning pins is mounted into the positioning holes of the molded part, the positioning holes having remained upon removal of the molding pins.Type: ApplicationFiled: December 13, 2006Publication date: September 27, 2007Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRIAL CO,.LTD., SUTECH TRADING LIMITEDInventors: PING CHEN, LEI LI, YAN-HUA XING, WEN-QUAN XU, CHANG-FA SUN, LIN-SEN DONG
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Publication number: 20070216580Abstract: A device shell for use in a wireless communication device, is disclosed to have a shell body injection-molded from a compound material in a predetermined shape, and an antenna circuit formed in the shell body and electrically connectable to a circuit board in a wireless communication device in which the device shell is used.Type: ApplicationFiled: March 15, 2006Publication date: September 20, 2007Applicant: CHANT SINCERE CO., LTD.Inventors: Shun-Tian Lin, Chang-Fa Yang, Chi-Tzu Liu, Kuo-Lun Huang, Yen-Ming Chen, Chao-Wei Wang, Chuan-Lin Hu, Yu-Wei Chen, Chang-Lun Liao
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Publication number: 20070204495Abstract: The present invention discloses a cup structure with surfaces of changeable patterns, and the structure includes a cup body, a transparent containing space having a surrounding periphery and disposed in the cup body, at least one driving shaft and driven shaft disposed at the containing space, and reel surrounded the periphery of a reel and wound on a driving shaft and a driven shaft, and the reel contains various different patterns or a continuous essay, such that when the cup structure is in use, the driving shaft and driven shaft can be rotated to change the pattern portion of the reel at the periphery of the cup body, and the patterns or words on the reel can be rotated to constantly change and display the patterns or words, so as to arouse children's curiosity, give more fun of using the cup, and encourage children to drink more water.Type: ApplicationFiled: March 3, 2006Publication date: September 6, 2007Inventor: Chang-Fa Lee
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Publication number: 20070199944Abstract: A dining utensil having a replaceable pattern plate includes a see-through containing space for containing a plurality of pattern plates with different figures, and the pattern plates are stacked in the containing space, and a stopper is plugged at an open end of the containing space for preventing the pattern plates from falling out or preventing water permeation when the dining utensil is washed, and the pattern plates can be swapped to arouse children's curiosity and give more funs to the dining for children.Type: ApplicationFiled: February 27, 2006Publication date: August 30, 2007Inventor: Chang-Fa Lee
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Publication number: 20070201714Abstract: A book structure with an audio generator includes a main body in the form of a book having a plurality of book leaves with printed texts or figures, a book cover covered at the periphery of the book leaves and having a cavity, and the cavity having a controlling member connected to a loudspeaker, and the controlling member is connected to a connecting member of the book cover, such that when the book structure is used, an electronic device transfer an audio file to a memory through the connecting member, and the cavity produce a resonance, so that the audio file can be played from the loudspeaker like a speaker box. The invention requires no external electronic device for the playback, and it can save any content in the format of an audio file into the controlling member as needed.Type: ApplicationFiled: February 27, 2006Publication date: August 30, 2007Inventor: Chang-Fa Lee
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Publication number: 20070194996Abstract: A connection apparatus for a chip antenna includes a connection base and at least one chip slot. The connection base is disposed on a circuit board and connects to the electronic components of the circuit board via a connection wire. The chip slot is disposed on the connection base for inserting the chip antenna. Thus, the chip antenna is connected to the electronic components of the circuit board via the connection wire.Type: ApplicationFiled: November 28, 2006Publication date: August 23, 2007Applicant: Chant Sincere Co., Ltd.Inventors: Chuan-Lin Hu, Yu-Wei Chen, Chang-Lun Liao, Shun-Tian Lin, Chang-Fa Yang, Yen-Ming Chen, Chao-Wei Wang
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Publication number: 20070164921Abstract: This disclosure relates to a broadband antenna apparatus having single or multiple winding strips. The broadband antenna apparatus has a dielectric material layer, and the single or multiple winding strips surround one another over the dielectric material layer. An antenna feed is located on the single or multiple winding strips, and ground terminals can be added.Type: ApplicationFiled: October 27, 2006Publication date: July 19, 2007Inventors: Chuan-Lin Hu, Chang-Fa Yang, Shun-Tian Lin, Chang-Lun Liao, Yu-Wei Chen, Yen-Ming Chen, Chao-Wei Wang
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Patent number: 7234223Abstract: A method for forging/molding a coarse blank of an aluminum transmission shaft, including steps of: placing burn-in softened aluminum material into a preheated mold; using a first punch head to first forge the aluminum material in the mold cavity from outer side of the molding hole so as to form a blank body of the transmission shaft with two pivot heads wherein one pivot head is located at each end of the transmission shaft and a shorter middle shaft rod; moving out the first punch head and connecting an extension mold with the mold; and immediately using a second punch head to secondarily forge the blank body in the mold cavity from outer side of the extension hole so as to make an end section of the second punch head extend into the mold cavity to a position near the inner end of the mold cavity, whereby the middle shaft rod of the blank body outward axially extends to the extension mold into a predetermined length to form the transmission shaft.Type: GrantFiled: July 26, 2004Date of Patent: June 26, 2007Assignee: Jinn Ruey Industries Co., Ltd.Inventor: Chang Fa Liu
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Patent number: 7232137Abstract: Disclosed is a beauty cart, which includes a wheeled cart body having racks at different elevations for holding devices and accessories for hairdressing, and a facial vaporizer installed in a vertical hollow holder frame of the wheeled cart body for producing steam for treating the skin of a person's face. The facial vaporizer has a nozzle pivoted to the top side of the vertical hollow holder frame of the wheeled cart body, and an electric heater installed in the vertical hollow holder frame and connected to the nozzle for heating water in a water container put inside the vertical hollow holder frame into steam and guiding produced steam out of the nozzle.Type: GrantFiled: June 30, 2005Date of Patent: June 19, 2007Inventor: Chang Fa Pai
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Publication number: 20070115182Abstract: A chip antenna has a dielectric material layer, a first meandered strip, a second meandered strip and several bended strips. The first meandered strip is meandered in one direction and disposed on the dielectric material layer. The second meandered strip is meandered in another direction and disposed on the dielectric material layer. The first meandered strip is connected to the second meandered strip. The bended strips are connected to the turns of the meandered strips.Type: ApplicationFiled: November 13, 2006Publication date: May 24, 2007Inventors: Yen-Ming Chen, Chao-Wei Wang, Chang-Fa Yang, Shun-Iian Lin, Chuan-Lin Hu, Chung-Lun Liao, Yu-Wei Chen
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Patent number: 7212165Abstract: A chip antenna has an antenna body and a package. The antenna body has multiple meandered metal lines and is encapsulated with the package. The material of the package is a dielectric composite formed with polymers and ceramic powders, which has a dielectric constant designed for the antenna. The characteristics of the chip antenna are determined by the structures of the antenna body and the dielectric constant of the package. Thus, a requirement for tiny structures in antenna applications can be satisfied.Type: GrantFiled: October 6, 2004Date of Patent: May 1, 2007Assignee: National Taiwan University of Science and TechnologyInventors: Chang-Fa Yang, Jen-Hsun Li, Jing-Ming Chen, Jun-Hong Lin, Shun-Tian Lin
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Publication number: 20070080890Abstract: An antenna apparatus has a substrate, a plurality of meandered conductive strips and a feeding conductive strip disposed on the substrate. The meandered conductive strips have different sizes, and are spaced at intervals and arranged in parallel according to their sizes in order. The feeding conductive strip is electrically connected to the meandered conductive strips. Therefore, a radiating structure having multiple meandered conductive strips can generate electromagnetic mutual coupling, thus obtaining the resonance of multiple and wide-frequency bands.Type: ApplicationFiled: October 6, 2006Publication date: April 12, 2007Inventors: Chang-Fa Yang, Shun-Tian Lin, Chao-Hung Lai, Chao-Wei Wang, Yen-Ming Chen, Chuan-Lin Hu, Yu-Wei Chen, Chang-Lun Liao
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Publication number: 20070024447Abstract: This invention provides a radio frequency identification (RFID) system comprising at least one reader module for radiating RF energy, a plurality of predetermined containers tagged by a plurality of RFID tags for receiving the radiated RF energy, wherein one or more containers are equipped with at least one conducting surface associated with at least one container side piece thereof so that when the plurality of the predetermined containers form a pile, an RF energy propagation channel network is formed comprising one or more propagation channels constructed by at least two conducting surfaces between two containers for confining and propagating the RF energy there-between.Type: ApplicationFiled: May 31, 2006Publication date: February 1, 2007Inventors: Walter Burnside, Chang-Fa Yang, Teh-Hong Lee
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Publication number: 20060238349Abstract: An integrating SOC capable of integrating a micro-antenna System on Chip (SOC) of integrating micro-antennas comprises an existing radio frequency model, a circuit board and an antenna element to a package of single SOC. The micro-antenna element is formed by using antenna radiated conductor paths composing of a single-feeding end or multiple-feeding ends and multiple-curved paths. Active or passive elements are selected to match up the antenna element and relative circuits, and arranges on the circuit board. Then by using embedding type injection molding or glue-filling modeling, the single SOC is finished by the package of a radio frequency model and an antenna element.Type: ApplicationFiled: April 20, 2005Publication date: October 26, 2006Applicant: CHANT SINCERE CO., LTD.Inventors: Chuan-Ling Hu, Shun-Tian Lin, Chang-Fa Yang
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Patent number: 7081865Abstract: Several electromagnetic scattering structures are designed to improve antenna radiation patterns. The electromagnetic scattering structure has a conductive layer with certain patterns, and is applied on the radome of the base-station sector antenna. The electromagnetic waves radiating from the antenna therein induce scattering effects, which, together with the electromagnetic diffractions from the rear metal panel of the antenna, can substantially reduce the back lobe and the fields in regions not covered by the antenna. Thus, the antenna radiation patterns are improved so that a lower possibility of co-channel interferences between adjacent base stations can be achieved and therefore better efficiency of the base-station coverage also can be obtained.Type: GrantFiled: August 26, 2004Date of Patent: July 25, 2006Assignee: National Taiwan University of Science and TechnologyInventors: Cheng-Hsiung Wu, Chang-Fa Yang
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Publication number: 20060158377Abstract: A method for manufacturing microchip antenna comprises a dielectric substrate having antennal radiated conductor paths composing of a single-feeding end or multiple-feeding ends and multiple-curved paths; a dielectric substrate having the antennal radiated conductor paths being packaged by the material capable of adjusting easily dielectric constant; and an antennal object including antennal radiated conductor paths, feeding ends, welding spots and packaging materials. The main body of the antenna has multi-folded paths, feeding ends, welding spots, and a packaging body. The radiation wires of the antenna is built on a single or a multiple input ends on a dielectric substrate and is multi-folded wires and it is packaged by another dielectric material. The radiation wires of the antenna can be designed and manufactured in three dimension so as to reduce the area occupied by the antenna and reduce the coupling interference between the elements.Type: ApplicationFiled: January 18, 2005Publication date: July 20, 2006Applicant: CHANT SINCERE CO., LTD.Inventors: Chuan-Ling Hu, Meng-Chiu Pan, Shun-Tian Lin, Chang-Fa Yang, Kuo-Chung Cheng, Sea-Fue Wang, Lisen Chang, Chang-Lun Liao, Chia-Hung Chen
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Patent number: 7075248Abstract: A system driving a lamp set having a first lamp and a second lamp is provided. The system has a power supply circuit providing an AC signal to the lamp set, and a balance circuit having a current balancing transformer, a first impedance and a second impedance for balancing currents through the first and second iamps. The current balancing transformer includes a first winding and a second winding. The first and second windings are wound on the same magnetic core and have the same winding count. A specific relationship between the first and second impedances balances the current values through the first and second lamps effectively without increasing inductances of the current balancing transformer.Type: GrantFiled: June 22, 2004Date of Patent: July 11, 2006Assignee: Benq CorporationInventors: Chang-Fa Hsieh, Chih-Kang Lung