Patents by Inventor Ming-Chi Chen
Ming-Chi Chen 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: 20110114603Abstract: A wire cut electrical discharge machine is provided. The wire cut electrical discharge machine includes a base. At least two wire feeding and receiving components are disposed over the base. A working area is between the wire feeding and receiving components. At least two flaky wire electrodes are disposed in the working area, wherein ends of the flaky wire electrodes are respectively set on the wire feeding and receiving components.Type: ApplicationFiled: April 20, 2010Publication date: May 19, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chao-Chuang Mai, Kung-Ying Li, Ming-Chi Chen
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Publication number: 20100029267Abstract: A method for clock calibration is provided. The method comprises receiving discontinuous reception period (DRX period) information from a base station, computing a calibration duration according to the discontinuous reception period and a clock error tolerance of a first clock, and when receiving paging information that informs of possible sent transmissions, calibrating the first clock with a second clock for a period of the calibration duration.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Applicant: MEDIATEK INC.Inventors: Ganning YANG, Ming-Chi CHEN
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Publication number: 20100017634Abstract: A dual-mode communication apparatus and a method thereof are provided. The dual-mode communication apparatus comprises a microprocessor, a first tick generator, a second tick generator, and an operation system tick module that comprises a tick converter and an OS tick generator. The microprocessor receives an OS clock tick to execute a real-time program task. The first tick generator receives a first predetermined number of first clocks to generate a first clock tick when the first clock is active. The second tick generator receives a second predetermined number of second clocks to generate a second clock tick when the second clock is active. The tick converter, coupled to the first and second tick generators, converts the second clock tick such that the converted second clock tick has a converted clock tick rate substantially identical to the clock tick rate of the first clock tick.Type: ApplicationFiled: July 15, 2008Publication date: January 21, 2010Applicant: MEDIATEK INC.Inventor: Ming-Chi CHEN
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Patent number: 7614870Abstract: The present invention relates to an injection unit of a two-stage injection molding machine having an injection device and a meter device for providing plastic to the injection device. The injection motor of the injection device is secured to the base and does not move along with the injection linkage member so as to decrease the movement momentum and improve the injection response and acceleration capability. Additionally, the injection device can adopt a plurality of injection motors for meeting the injection capability requirement without employing high power injection motors. The length of the injection molding machines is relatively shortened, thus the problem of the prior arts is solved.Type: GrantFiled: December 1, 2006Date of Patent: November 10, 2009Assignee: Industrial Technology Research InstituteInventors: Ming-Chi Chen, Wen-Hung Feng, Cheng-Jien Chen
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Patent number: 7577726Abstract: In a method for updating a hardware configuration of a networked communications device, a networked communications device is provided with one or more programmable logic units. A first hardware configuration is determined which describes hardware features programmed into the programmable logic unit. When an updated hardware configuration becomes available, it can be downloaded into a centralized file holding configuration information for the main circuit board and add-in options cards of the networked device. The programmable logic unit is re-programmed with the second hardware configuration to provide an updated hardware configuration.Type: GrantFiled: February 7, 2002Date of Patent: August 18, 2009Assignee: Cisco Technology, Inc.Inventors: Theodore Conard, Ming Chi Chen
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Patent number: 7515940Abstract: A system and method for selecting a best transmit antenna for a transceiver using antenna diversity that caches the identity of the best transmit antenna for each remote node from which a message has been received. The best transmit antenna is then selected for each message sent to a remote node having a cache entry.Type: GrantFiled: March 22, 2005Date of Patent: April 7, 2009Assignee: Cisco Technology, Inc.Inventors: Ming Chi Chen, Mickey Ramal Henniger
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Patent number: 7400156Abstract: A vertical probe device includes two guide members arranged in a stack manner and defining therebetween an accommodation chamber, a probe holder plate disposed between the guide members, and a plurality of probes inserted through the guide plates and the probe holder plate in such a manner that the probes are flexible within the accommodation chamber. One of the guide plates has at least one through hole. The probe holder plate is slightly moveable in horizontal and vertical directions but fixable to one of the guide plats under a force applied through the at least one through hole to the probe holder plate while the other of the guide plates is removed, thereby preventing damage of the probes or movement of the probes during a maintenance work.Type: GrantFiled: September 6, 2006Date of Patent: July 15, 2008Assignee: MJC Probe IncorporationInventors: Shih-Chang Wu, Hendra Sudin, Hsin-Hung Lin, Ming-Chi Chen
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Patent number: 7377769Abstract: A discharge apparatus for a two-stage injection molding machine, includes a check shaft seat having a runner, and disposed between a feeding portion and an injection portion of the two-stage injection molding machine, for allowing a plastic material in the feeding portion to enter the injection portion via the runner; at least one check shaft disposed in the check shaft seat, and for opening and closing the runner via movement of the check shaft; at least one cover provided at a side of the check shaft seat, and having at least one discharge hole for discharging residues of the plastic material between the check shaft seat and the check shaft; and at least one adjustable unit for adjusting a discharge speed of the residues of the plastic material. The discharge hole and the adjustable unit can prevent locking of the check shaft and pollution from degraded residues of plastic material.Type: GrantFiled: July 26, 2005Date of Patent: May 27, 2008Assignee: Industrial Technology Research InstituteInventors: Ming-Chi Chen, Ming-Chang Teng, Wen-Hung Feng
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Patent number: 7368928Abstract: A vertical-type probe card includes a circuit board, which has signal circuits and grounding circuits arranged in such a manner that each signal circuit is disposed in parallel and adjacent to one grounding circuit and kept a predetermined distance from the grounding circuit, and a probe assembly, which is arranged at the bottom side of the circuit board and has an upper guide plate, a lower guide plate, a conducting layer provided on the lower guide plate, a plurality of signal probes respectively electrically connected to the signal circuits and adjacent to a plurality of compensation probes, and at least one grounding probe electrically connected to the grounding circuits in a manner that the signal, compensation and grounding probes are vertically inserted through the upper and lower guide plates, and the conducting layer is conducted with the compensation probe and the grounding probe while electrically insulated to the signal probe.Type: GrantFiled: August 29, 2006Date of Patent: May 6, 2008Assignee: MJC Probe IncorporationInventors: Hsin-Hung Lin, Shih-Cheng Wu, Wei-Cheng Ku, Chien-Liang Chen, Ming-Chi Chen, Hendra Sudin
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Publication number: 20080054919Abstract: A vertical probe device includes two guide members arranged in a stack manner and defining therebetween an accommodation chamber, a probe holder plate disposed between the guide members, and a plurality of probes inserted through the guide plates and the probe holder plate in such a manner that the probes are flexible within the accommodation chamber. One of the guide plates has at least one through hole. The probe holder plate is slightly moveable in horizontal and vertical directions but fixable to one of the guide plats under a force applied through the at least one through hole to the probe holder plate while the other of the guide plates is removed, thereby preventing damage of the probes or movement of the probes during a maintenance work.Type: ApplicationFiled: September 6, 2006Publication date: March 6, 2008Applicant: MJC PROBE INCORPORATIONInventors: Shih-Chang Wu, Hendra Sudin, Hsin-Hung Lin, Ming-Chi Chen
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Publication number: 20080054918Abstract: A vertical-type probe card includes a circuit board, which has signal circuits and grounding circuits arranged in such a manner that each signal circuit is disposed in parallel and adjacent to one grounding circuit and kept a predetermined distance from the grounding circuit, and a probe assembly, which is arranged at the bottom side of the circuit board and has an upper guide plate, a lower guide plate, a conducting layer provided on the lower guide plate, a plurality of signal probes respectively electrically connected to the signal circuits and adjacent to a plurality of compensation probes, and at least one grounding probe electrically connected to the grounding circuits in a manner that the signal, compensation and grounding probes are vertically inserted through the upper and lower guide plates, and the conducting layer is conducted with the compensation probe and the grounding probe while electrically insulated to the signal probe.Type: ApplicationFiled: August 29, 2006Publication date: March 6, 2008Applicant: MJC PROBE INCORPORATIONInventors: Hsin-Hung Lin, Shih-Cheng Wu, Wei-Cheng Ku, Chien-Liang Chen, Ming-Chi Chen, Hendra Sudin
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Patent number: 7285022Abstract: A network device includes card slots and Network Module slots that be reconfigured to hold cards and network modules having different form factors.Type: GrantFiled: September 18, 2006Date of Patent: October 23, 2007Assignee: Cisco Technology, Inc.Inventors: Helen Shtargot, Shawn Bender, William J. Lewis, Lwin Tint, David Tarkington, Ming Chi Chen, Rene Duzac, James Everett Grishaw, Torence Lu, Kimberly Rae Turner, Phong Hoang Ho, Robert A. Loose, Stephen Scearce, Terri Cruse
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Publication number: 20070128309Abstract: The present invention relates to an injection unit of a two-stage injection molding machine having an injection device and a meter device for providing plastic to the injection device. The injection motor of the injection device is secured to the base and does not move along with the injection linkage member so as to decrease the movement momentum and improve the injection response and acceleration capability. Additionally, the injection device can adopt a plurality of injection motors for meeting the injection capability requirement without employing high power injection motors. The length of the injection molding machines is relatively shortened, thus the problem of the prior arts is solved.Type: ApplicationFiled: December 1, 2006Publication date: June 7, 2007Inventors: Ming-Chi Chen, Wen-Hung Feng, Cheng-Jien Chen
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Patent number: 7204686Abstract: A parallelism adjustment device applicable to nano-imprint lithography has an imprint unit, a carrier unit, a parallelism adjustment mechanism, and a driving source. The imprint unit has a first molding plate and an imprinting mold mounted on the first molding plate. The carrier unit has a second molding plate and a substrate mounted on the second molding plate. The parallelism adjustment mechanism has an enclosed resilient film and a fluid filled therein, and is coupled to at least one of the first and second molding plates. The driving source drives at least one of the imprint unit and the carrier unit to form contact between the mold and the moldable layer. The parallelism adjustment device is pressed via the contact to adjust parallelism for the imprint mold and the substrate and uniformly distributes the pressure between the mold and the substrate, making the molding quality of nano-imprint lithography significantly improved.Type: GrantFiled: September 17, 2003Date of Patent: April 17, 2007Assignee: Industrial Technology Research InstituteInventors: Yong-Chen Chung, Chia-Hung Lin, Chuan-Feng Chen, Chia-Chun Hsu, Wen-Hung Feng, Ming-Chi Chen
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Patent number: 7140860Abstract: A two-stage injection molding machine having a pressure sensor device is proposed. The two-stage injection molding machine includes an injection part having an injection cylinder, a driving unit, and an injection rod installed in the injection cylinder; a metering part for feeding plastic material to the injection cylinder of the injection part; and a loadcell installed between the injection rod and the driving unit, wherein pressures in the injection cylinder during the feed metering, injection, and packing processes are detected via the loadcell and the pressure sensor rod. As a result, an accurate pressure feedback control is implemented to achieve high precision injection molding quality. And with the two-stage injection molding machine having such a simple structural design, occurrence of signal distortion and delayed response is prevented.Type: GrantFiled: March 9, 2004Date of Patent: November 28, 2006Assignee: Industrial Technology Research InstituteInventors: Ming-Chi Chen, Wen-Hung Feng, Ming-Chang Teng
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Patent number: 7108559Abstract: A router includes WIC and Network Module slots that be reconfigured to hold cards and network modules having different form factors. A motherboard/midplane arrangement provides for a field replaceable motherboard that can be replaced without removing the router from the rack.Type: GrantFiled: December 21, 2004Date of Patent: September 19, 2006Assignee: Cisco Technology, INc.Inventors: Helen Shtargot, Dattatri Mattur, Shawn Bender, William J. Lewis, Lwin Tint, David Tarkington, Ming Chi Chen, Rene Duzac, James Everett Grishaw, Torence Lu, Kimberly Rae Turner, Phong Hoang Ho, Robert A. Loose, Stephen Scearce
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Patent number: 7111160Abstract: The development port or Debug port of a microprocessor on an intelligent daughterboard is used for downloading code or configuration information from a motherboard for use in boot-up. In various aspects, the code or configuration information can include information used for configuring a port, other than the development port, and/or for configuring a memory controller, such as for a daughterboard DRAM. Use of the Debug port makes it possible to reduce or eliminate the need for storing boot-up code or configuration information on a daughterboard ROM, or other non-volatile memory, thus reducing cost and space requirements, power consumption and the like.Type: GrantFiled: February 7, 2000Date of Patent: September 19, 2006Assignee: Cisco Technology, Inc.Inventors: Mick Henniger, Kelvin Shih-Tai Liu, Ming Chi Chen, Ramesh Srinivasan, Severin Baer, Sanjoy Dey, Smita Kiran Rane
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Patent number: 7090477Abstract: An electromagnetic coaxial driving injection apparatus, having a linear motor for driving injection and a rotation motor for metering. The linear motor and the rotation motor of both the injection and metering motors and an injection screw are set on a common axis. A connecting device connects moving parts of the motors with the injection screw. Stationary parts of the motors are fastened on a frame and forward-backward moving unit, not moving during injection and metering. Due to the arrangement of the moving parts and the injection screw on a single axis, moving parts are lessened, and transmission losses are minimized. Since the number of structural parts is low, only the moving parts of the motors move during injection while the stationary parts thereof remain at rest, thus greatly reducing inertia.Type: GrantFiled: April 1, 2003Date of Patent: August 15, 2006Assignee: Industrial Technology Research InstituteInventors: Chia-Chun Hsu, Yong-Chen Chung, Chia-Hung Lin, Wen-Hung Feng, Ming-Chi Chen
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Patent number: 7077637Abstract: The present invention is a force detecting controlling device for a screw of an injection molding machine, which utilities a load cell as a force sensor for injection, holding pressure and back pressure. The load cell arranged on a rear fixed plate directly detects a force applied onto a ball screw nut. Because the ball screw nut is fastened on the load cell, and the load cell is fixed on the rear fixed plate, the force on a ball screw is directly transmitted to the ball screw nut. Therefore, a total value of the force on the ball screw produced by back pressure and friction among mechanical parts are equal to a force value of the ball screw nut applying onto the load cell. The injection force detected via the load cell for an instant response reaches a close loop control and procedures of holding pressure and back pressure are specifically controlled as well.Type: GrantFiled: May 12, 2003Date of Patent: July 18, 2006Assignee: Industrial Technology Research InstituteInventors: Chia-Chun Hsu, Wann-Fu Su, Ming-Chi Chen, Chuan-Feng Chen
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Publication number: 20060134261Abstract: A discharge apparatus for a two-stage injection molding machine, includes a check shaft seat having a runner, and disposed between a feeding portion and an injection portion of the two-stage injection molding machine, for allowing a plastic material in the feeding portion to enter the injection portion via the runner; at least one check shaft disposed in the check shaft seat, and for opening and closing the runner via movement of the check shaft; at least one cover provided at a side of the check shaft seat, and having at least one discharge hole for discharging residues of the plastic material between the check shaft seat and the check shaft; and at least one adjustable unit for adjusting a discharge speed of the residues of the plastic material. The discharge hole and the adjustable unit can prevent locking of the check shaft and pollution from degraded residues of plastic material.Type: ApplicationFiled: July 26, 2005Publication date: June 22, 2006Inventors: Ming-Chi Chen, Ming-Chang Teng, Wen-Hung Feng