Patents by Inventor Xiang-Ming Li
Xiang-Ming Li 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: 9495937Abstract: A color detection system includes a motherboard, a detection device, and a detection card. The detection device comprises a display unit and a memory unit storing a first color frequency setting value. The display unit displays a first color according to the color frequency setting value. The detection card includes a color sensor, a microcontroller, and a first connector. The color sensor generates a first color frequency current value after sensing the first color from the display unit and sends the first color frequency current value to the microcontroller. The microcontroller sends the first color frequency current value to the motherboard And the motherboard outputs detection success information to the display unit when a first difference value between the first color frequency current value and the first color frequency setting value is less than a predetermined value. The display unit displays the detection success information.Type: GrantFiled: July 31, 2014Date of Patent: November 15, 2016Assignees: HONG FU JIN PRECISION (WuHan) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Fu-Yun Yang, Xiang-Ming Li, Pei Tu, Ping Tian
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Publication number: 20150036140Abstract: A color detection system includes a motherboard, a detection device, and a detection card. The detection device comprises a display unit and a memory unit storing a first color frequency setting value. The display unit displays a first color according to the color frequency setting value. The detection card includes a color sensor, a microcontroller, and a first connector. The color sensor generates a first color frequency current value after sensing the first color from the display unit and sends the first color frequency current value to the microcontroller. The microcontroller sends the first color frequency current value to the motherboard And the motherboard outputs detection success information to the display unit when a first difference value between the first color frequency current value and the first color frequency setting value is less than a predetermined value. The display unit displays the detection success information.Type: ApplicationFiled: July 31, 2014Publication date: February 5, 2015Inventors: FU-YUN YANG, XIANG-MING LI, PEI TU, PING TIAN
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Publication number: 20100250135Abstract: A method and device enables an efficient determination of a proximity of a social network service acquaintance. The method includes transmitting an inquiry message from the electronic device during a device proximity discovery process (step 405). An inquiry response message is then received in response to the inquiry message, where the inquiry response message includes a received social network service identifier associated with the social network service acquaintance (step 410). Next, a proximity of the social network service acquaintance is determined by matching the received social network service identifier with a stored social network service identifier (step 415). An output is then provided at the electronic device in response to matching the received social network service identifier (step 420).Type: ApplicationFiled: March 26, 2009Publication date: September 30, 2010Applicant: Motorola, Inc.Inventors: Xiang-Ming Li, Zong-Hua Liu, Cheng Yang
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Publication number: 20090141682Abstract: A method and system of controlling an audio switch at a receiving unit during handoff is disclosed herein. The method can include the step of—at a receiving unit with an audio call active on a first network supporting a first audio protocol—setting up a second audio call on a second network supporting a different audio protocol. The method can further include the steps of monitoring for one or more events, detecting one or more of the events, and in response to the detection of one or more of the events, switching an audio path of the receiving unit from the first network to the second network.Type: ApplicationFiled: November 30, 2007Publication date: June 4, 2009Applicant: MOTOROLA, INC.Inventors: WEI ZOU, ROBERT A. CORDES, XIANG-MING LI, JERRY J. MAHLER, YINGCHUNG XU
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Patent number: 7271369Abstract: An improved PTC device and method of manufacturing is disclosed. In one embodiment, the device and method incorporates an improved metal-ceramic composite PTC material manufactured by: (a) heating a ceramic material to a sufficiently high temperature to induce the ceramic material's PTC properties; (b) grinding the ceramic PTC material into a powder; (c) mixing the ceramic PTC material powder with a metal material powder so as to produce a metal-ceramic composite material powder; and (d) sintering the composite material powder at a temperature between 600° and 950° C. In alternative embodiments, an improved multi-layer structure and method of manufacturing such a structure is disclosed. In various embodiments, a PTC device made in accordance with the improved multi-layer structure and method of manufacture may or may not incorporate the improved metal-ceramic composite PTC material disclosed herein, but may use conventional ceramic-based PTC materials.Type: GrantFiled: August 26, 2005Date of Patent: September 18, 2007Assignee: AEM, Inc.Inventors: Xiang-Ming Li, Xiaopeng Yang, Liwu Wang, Daniel H. Chang
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Patent number: 7268661Abstract: A composite fuse element includes a network or matrix of conductive material that is in contact and interspersed with arc suppressing materials at a particle level. In such a matrix, the conductive (e.g., metal) network and the arc suppressing material particles provides a large contact surface area between these materials. When the conductive network melts or vaporizes, the resulting conductive vapors are adsorbed into the arc suppressing particles in a short time due to the large contact area between conductive and arc suppressing materials and the short diffusion distance that the conductive vapors are required to travel before they are absorbed by the arc suppressing material.Type: GrantFiled: September 27, 2004Date of Patent: September 11, 2007Assignee: AEM, Inc.Inventors: Xiang-Ming Li, Liwu Wang, Jeffrey D. Montgomery, Daniel H. Chang
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Publication number: 20070045287Abstract: An improved PTC device and method of manufacturing is disclosed. In one embodiment, the device and method incorporates an improved metal-ceramic composite PTC material manufactured by: (a) heating a ceramic material to a sufficiently high temperature to induce the ceramic material's PTC properties; (b) grinding the ceramic PTC material into a powder; (c) mixing the ceramic PTC material powder with a metal material powder so as to produce a metal-ceramic composite material powder; and (d) sintering the composite material powder at a temperature between 600° and 950° C. In alternative embodiments, an improved multi-layer structure and method of manufacturing such a structure is disclosed. In various embodiments, a PTC device made in accordance with the improved multi-layer structure and method of manufacture may or may not incorporate the improved metal-ceramic composite PTC material disclosed herein, but may use conventional ceramic-based PTC materials.Type: ApplicationFiled: August 26, 2005Publication date: March 1, 2007Inventors: Xiang-Ming Li, Xiaopeng Yang, Liwu Wang, Daniel Chang
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Publication number: 20060067021Abstract: An improved over-voltage and over-current protection device is provided. The device includes: a first over-current protection device disposed between a first electrically conductive terminal and a second electrically conductive terminal, wherein the first over-current protection device creates an open circuit when a current exceeding a certain level flows between the first terminal and the second terminal; a first over-voltage protection device electrically coupled to the first terminal, wherein the first over-voltage protection device clamps voltages applied to the first terminal below a specified level; and a second over-voltage protection device electrically coupled to the second terminal, wherein the second over-voltage protection device clamps voltages applied to the second terminal below a specified level.Type: ApplicationFiled: September 27, 2004Publication date: March 30, 2006Inventors: Xiang-Ming Li, Liwu Wang
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Publication number: 20060066435Abstract: A composite fuse element includes a network or matrix of conductive material that is in contact and interspersed with arc suppressing materials at a particle level. In such a matrix, the conductive (e.g., metal) network and the arc suppressing material particles provides a large contact surface area between these materials. When the conductive network melts or vaporizes, the resulting conductive vapors are adsorbed into the arc suppressing particles in a short time due to the large contact area between conductive and arc suppressing materials and the short diffusion distance that the conductive vapors are required to travel before they are absorbed by the arc suppressing material.Type: ApplicationFiled: September 27, 2004Publication date: March 30, 2006Inventors: Xiang-Ming Li, Liwu Wang, Jeffrey Montgomery, Daniel Chang
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Patent number: 6844278Abstract: A dense lead-free glass ceramic that has low dielectric constant and low dielectric loss for producing high-frequency ceramic devices, such as inductors and low temperature co-fired ceramics (LTCC), is disclosed. The glass ceramic consists of 15-35% by weight of lead-free borosilicate glasses with low softening point, 15-35% by weight of lead-free borosilicate glasses with high softening point, 20-80% by weight of combination of amorphous and crystalline SiO2-filler (preferably 5-30% by weight of amorphous SiO2, 10-50% by weight of crystalline SiO2) and 0.1-10% by weight of at least one oxide of Al2O3, BaO, Sb2O3, V2O5, CoO, MgO, B2O3, Nb2O5, SrO and ZnO. The glass ceramic can be densified up to 99% of its theoretical density after firing and is co-firable with conductive metals between 800-900° C. The dense glass ceramic has dielectric constant of 4.2-4.6 and loss tangent (tan ?)<0.0025 at 20 MHz and good thermal/mechanical strength for application in high frequency electronic devices.Type: GrantFiled: September 18, 2002Date of Patent: January 18, 2005Assignee: AEM, Inc.Inventors: Liwu Wang, Xiang-Ming Li, Albert Tian, Daniel H. Chang, Zhong Zheng
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Ultraviolet/electron beam forming process for multi-layer electronic components and products thereof
Patent number: 6602766Abstract: A multilayered electronic component with or without inter-layer connections created by a process using radiation curing such as ultraviolet/electron beam curing techniques. UV light or electron beam curable binders are mixed with ceramic powders and metals powders to form a ceramic slurry and electrode ink, there is little or no solvent in the metal ink and ceramic slurry. Instead of drying, a UV or electron beam is used for curing the binders. These binders could contain UV/electron beam curable monomers or oligomers, photo initiators, and other additives to provide the desired chemical and physical properties in the forming process.Type: GrantFiled: November 27, 2001Date of Patent: August 5, 2003Assignee: AEM, Inc.Inventors: Daniel H. Chang, Xiang-Ming Li -
Publication number: 20030096692Abstract: A dense lead-free glass ceramic that has low dielectric constant and low dielectric loss for producing high-frequency ceramic devices, such as inductors and low temperature co-fired ceramics (LTCC), is disclosed. The glass ceramic consists of 15-35% by weight of lead-free borosilicate glasses with low softening point, 15-35% by weight of lead-free borosilicate glasses with high softening point, 20-80% by weight of combination of amorphous and crystalline SiO2-filler (preferably 5-30% by weight of amorphous SiO2, 10-50% by weight of crystalline SiO2) and 0.1-10% by weight of at least one oxide of Al2O3, BaO, Sb2O3, V2O5, CoO, MgO, B2O3, Nb2O5, SrO and ZnO. The glass ceramic can be densified up to 99% of its theoretical density after firing and is co-firable with conductive metals between 800-900° C. The dense glass ceramic has dielectric constant of 4.2-4.6 and loss tangent (tan &dgr;)<0.0025 at 20 MHz and good thermal/mechanical strength for application in high frequency electronic devices.Type: ApplicationFiled: September 18, 2002Publication date: May 22, 2003Applicant: AEM, Inc.Inventors: Liwu Wang, Xiang-Ming Li, Albert Tian, Daniel H. Chang, Zhong Zheng
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Publication number: 20030024111Abstract: A multilayered electronic component with inter-layer connections is created by a process using dot penetration techniques. Electrodes are formed on a substrate. One or more conductive structures are formed on the electrodes to provide for interlayer electrical connections. A non-conductive (e.g., ceramic) sheet is laminated on top of the conductive dots under elevated pressure and temperature to cause the dot to penetrate through the ceramic sheet. A second electrode is printed on top of the penetrated conductive structure to complete the interlayer electrical connection without having to punch holes to form vias in the ceramic sheet.Type: ApplicationFiled: August 2, 2002Publication date: February 6, 2003Applicant: AEM, Inc.Inventors: Daniel H. Chang, Xiang-Ming Li, Liwu Wang
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Ultraviolet/electron beam forming process for multi-layer electronic components and products thereof
Publication number: 20020072205Abstract: A multilayered electronic component with or without inter-layer connections created by a process using radiation curing such as ultraviolet/electron beam curing techniques. UV light or electron beam curable binders are mixed with ceramic powders and metals powders to form a ceramic slurry and electrode ink, there is little or no solvent in the metal ink and ceramic slurry. Instead of drying, a UV or electron beam is used for curing the binders. These binders could contain UV/electron beam curable monomers or oligomers, photo initiators, and other additives to provide the desired chemical and physical properties in the forming process.Type: ApplicationFiled: November 27, 2001Publication date: June 13, 2002Inventors: Daniel H. Chang, Xiang-Ming Li -
Patent number: 6228230Abstract: An apparatus for electroplating small parts comprises an electroplating bath for holding an electrolyte and electroplating anodes. The apparatus includes a container having at least one screened parts compartment for holding the parts to be electroplated, and incorporates an electrically conductive screen as its base portion, on which the parts are settled. The conductive screen is adaptable to be connected to the negative pole of a power supply to function as the cathode. A pump circulates freshly ionized electrolyte into the parts compartment and directs a flow of the electrolyte to periodically tumble the parts in the parts compartment. Thereafter, the parts are shaken by a shaker to level the parts to maximize the surface and electrical contact between the parts and the screen when they are settled on the screen. In alternative embodiments of the invention, the container can be of perforated panel construction.Type: GrantFiled: April 19, 1999Date of Patent: May 8, 2001Assignee: AEM, Inc.Inventors: Xiang-Ming Li, Tom w. Lamayeau, Kenneth McMasters Wallace, Bruce W. Hess, William DeoGracias, Daniel H. Chang