Patents by Inventor Stephen Li
Stephen 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: 8320140Abstract: In one embodiment, a power converter system includes an input terminal for receiving a DC input voltage. The power converter system delivers AC power to a load at an output terminal. A transformer is coupled between the input terminal and the output terminal. The transformer has a first winding, a second winding, and a third winding. The output terminal is coupled to the second winding. A half-bridge circuit, coupled between the input terminal and the first winding of the transformer, includes a first switch and a second switch coupled at a common node. The first and second switches are operable to be turned on and off for causing current to flow in the transformer during operation of the power converter system. Circuitry is close coupled to the first winding of the transformer.Type: GrantFiled: November 22, 2010Date of Patent: November 27, 2012Assignee: Fairchild Semiconductor CorporationInventor: Stephen Li
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Publication number: 20110271076Abstract: An electronic device includes a processing component and a task manager. The processing component is configurable for one of a single-core processing mode and a multi-core processing mode. The task manager determines a number of tasks running on the electronic device. The processor is configured to one of the single-core processing mode and the multi-core processing mode as a function of the number of tasks.Type: ApplicationFiled: April 28, 2010Publication date: November 3, 2011Inventors: Maarten Koning, Stephen Li
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Publication number: 20110228577Abstract: In one embodiment, a power converter system includes an input terminal for receiving a DC input voltage. The power converter system delivers AC power to a load at an output terminal. A transformer is coupled between the input terminal and the output terminal. The transformer has a first winding, a second winding, and a third winding. The output terminal is coupled to the second winding. A half-bridge circuit, coupled between the input terminal and the first winding of the transformer, includes a first switch and a second switch coupled at a common node. The first and second switches are operable to be turned on and off for causing current to flow in the transformer during operation of the power converter system. Circuitry is close coupled to the first winding of the transformer.Type: ApplicationFiled: November 22, 2010Publication date: September 22, 2011Inventor: Stephen Li
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Patent number: 7839666Abstract: In one embodiment, a power converter system includes an input terminal for receiving a DC input voltage. The power converter system delivers AC power to a load at an output terminal. A transformer is coupled between the input terminal and the output terminal. The transformer has a first winding, a second winding, and a third winding. The output terminal is coupled to the second winding. A half-bridge circuit, coupled between the input terminal and the first winding of the transformer, includes a first switch and a second switch coupled at a common node. The first and second switches are operable to be turned on and off for causing current to flow in the transformer during operation of the power converter system. Circuitry is close coupled to the first winding of the transformer.Type: GrantFiled: April 2, 2008Date of Patent: November 23, 2010Assignee: Fairchild Semiconductor CorporationInventor: Stephen Li
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Publication number: 20100215880Abstract: The current invention utilizes an extrusion coating method as a key step in a series of multilayer construction processes to make a laminate for graphic application. The extrusion coated layer performs as a strengthening layer to provide mechanical properties for the construction, while an ink receptive coating layer delivers high quality printability performance. High gloss can be achieved through the use of a PET carrier.Type: ApplicationFiled: February 25, 2010Publication date: August 26, 2010Applicant: Avery Dennison CorporationInventors: Chia-Hsi CHU, Eugene ROZENBAOUM, Frank Y. SHIH, Stephen LI, Prakash MALLYA
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Patent number: 7560303Abstract: A method for assembling a semiconductor device including the steps of providing a penetrable substrate having an adhesive surface and a plurality of dies disposed on the adhesive surface; providing a strap lead substrate having a plurality of strap leads disposed thereon; dispensing a first plurality of strap leads from the plurality of strap leads; providing a plurality of pins; bringing the penetrable substrate into close proximity with the strap lead substrate so as to bringing the first plurality of strap leads into contact with the plurality of dies; pressing the first plurality of strap leads against the plurality of dies using the plurality of pins; and, moving the penetrable substrate away from the strap lead substrate while using the plurality of pins to maintain contact between the first plurality of strap leads and the plurality of dies. An apparatus for assembling a semiconductor device is also disclosed.Type: GrantFiled: November 7, 2006Date of Patent: July 14, 2009Assignee: Avery Dennison CorporationInventors: Haochuan Wang, Ali Mehrabi, Kouroche Kian, Xiaoming He, Stephen Li
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Patent number: 7512148Abstract: A weighted round-robin arbitrator for a plurality of data queue includes an arbitration table comprising a plurality of entries. Each entry represents a time slot for the transmission of one data packet from a selected one of the plurality of data queues. There is one arbitration logic circuit for each of the plurality of entries in the arbitration table. Each arbitration logic circuit includes a first multiplexer receiving an output from a first table entry and an output from a second table entry in the arbitration table. A second multiplexer receives empty flags from each of the data queues, the flags indicating that there is no data to the sent from that queue.Type: GrantFiled: December 9, 2003Date of Patent: March 31, 2009Assignee: Texas Instruments IncorporatedInventors: Stephen Li, Brian Tse Deng
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Publication number: 20080124842Abstract: A method for assembling a semiconductor device including the steps of providing a penetrable substrate having an adhesive surface and a plurality of dies disposed on the adhesive surface; providing a strap lead substrate having a plurality of strap leads disposed thereon; dispensing a first plurality of strap leads from the plurality of strap leads; providing a plurality of pins; bringing the penetrable substrate into close proximity with the strap lead substrate so as to bringing the first plurality of strap leads into contact with the plurality of dies; pressing the first plurality of strap leads against the plurality of dies using the plurality of pins; and, moving the penetrable substrate away from the strap lead substrate while using the plurality of pins to maintain contact between the first plurality of strap leads and the plurality of dies. An apparatus for assembling a semiconductor device is also disclosed.Type: ApplicationFiled: November 7, 2006Publication date: May 29, 2008Applicant: AVERY DENNISON CORPORATIONInventors: Haochuan Wang, Ali Mehrabi, Kouroche Kian, Xiaoming He, Stephen Li
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Publication number: 20080060750Abstract: A method for assembling a semiconductor device from a plurality of chips is disclosed. The method includes providing a penetrable carrier having a penetrable carrier substrate and an adhesive layer; providing a plurality of chips disposed on a surface of the adhesive layer; providing a second substrate; bringing the surface of the adhesive layer of the penetrable carrier close to the second substrate; pinning the plurality of chips against the second substrate through the penetrable carrier; and, moving the penetrable carrier away from the second substrate such that the plurality of pinned chips are removed from the surface of the adhesive layer on the penetrable carrier.Type: ApplicationFiled: August 31, 2006Publication date: March 13, 2008Applicant: AVERY DENNISON CORPORATIONInventors: Haochuan Wang, Ali Mehrabi, Stephen Li, Kouroche Kian, Xiaoming He, Peikang Liu
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Publication number: 20070045259Abstract: A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of a welding output operating parameter. The feedback may also be taken from the inverter or generator, and the generator may be controlled instead of or in addition to the engine. Engine parameters that may be controlled include engine speed, selecting between an idle speed and a run speed, a throttle position, a fuel pump, an injection timer, a fuel to air ratio, fuel consumption and ignition timing. Another aspect of the invention is having the feedback be responsive to one or more of the welding current, welding voltage, welding power, or functions thereof. The feedback may be responsive to the current, voltage, power, ripple and functions thereof.Type: ApplicationFiled: September 20, 2006Publication date: March 1, 2007Applicant: Illinois Tool Works Inc.Inventors: Richard Beeson, Stephen Li, Alan Smith
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Patent number: 7112945Abstract: A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of a welding output operating parameter. The feedback may also be taken from the inverter or generator, and the generator may be controlled instead of or in addition to the engine. Engine parameters that may be controlled include engine speed, selecting between an idle speed and a run speed, a throttle position, a fuel pump, an injection timer, a fuel to air ratio, fuel consumption and ignition timing. Another aspect of the invention is having the feedback be responsive to one or more of the welding current, welding voltage, welding power, or functions thereof. The feedback may be responsive to the current, voltage, power, ripple and functions thereof.Type: GrantFiled: May 3, 2005Date of Patent: September 26, 2006Assignee: Illinois Tool Works Inc.Inventors: Richard Beeson, Stephen Li, Alan Smith
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Publication number: 20050236383Abstract: A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of a welding output operating parameter. The feedback may also be taken from the inverter or generator, and the generator may be controlled instead of or in addition to the engine. Engine parameters that may be controlled include engine speed, selecting between an idle speed and a run speed, a throttle position, a fuel pump, an injection timer, a fuel to air ratio, fuel consumption and ignition timing. Another aspect of the invention is having the feedback be responsive to one or more of the welding current, welding voltage, welding power, or functions thereof. The feedback may be responsive to the current, voltage, power, ripple and functions thereof.Type: ApplicationFiled: May 3, 2005Publication date: October 27, 2005Inventors: Richard Beeson, Stephen Li, Alan Smith
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Publication number: 20050210959Abstract: An examining device for cloth includes a first container having two opposite open ends, a second container having a closed end and an open end, a combining device to combine the first container and the second container and an air supply device in connection with the second container to supply air into the second container. After a cloth is sandwiched between the combining means and the first container and after the first container is filled with water and the second container is supplied with air, observation made to see if water seeps through the cloth and air passes through the cloth is able to test capabilities of the cloth.Type: ApplicationFiled: March 24, 2004Publication date: September 29, 2005Inventors: Jason Chen, Stephen Li, Jimmy Lay, Murphy Tsorng
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Patent number: 6948354Abstract: An examining device for cloth includes a first container having two opposite open ends, a second container having a closed end and an open end, a combining device to combine the first container and the second container and an air supply device in connection with the second container to supply air into the second container. After a cloth is sandwiched between the combining means and the first container and after the first container is filled with water and the second container is supplied with air, observation made to see if water seeps through the cloth and air passes through the cloth is able to test capabilities of the cloth.Type: GrantFiled: March 24, 2004Date of Patent: September 27, 2005Assignee: Singtex Industrial Co., Ltd.Inventors: Jason Chen, Stephen Li, Jimmy Lay, Murphy Tsorng
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Publication number: 20050122982Abstract: A weighted round-robin arbitrator for a plurality of data queue includes an arbitration table comprising a plurality of entries. Each entry represents a time slot for the transmission of one data packet from a selected one of the plurality of data queues. There is one arbitration logic circuit for each of the plurality of entries in the arbitration table. Each arbitration logic circuit includes a first multiplexer receiving an output from a first table entry and an output from a second table entry in the arbitration table. A second multiplexer receives empty flags from each of the data queues, the flags indicating that there is no data to the sent from that queue.Type: ApplicationFiled: December 9, 2003Publication date: June 9, 2005Inventors: Stephen Li, Brian Deng
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Publication number: 20050125590Abstract: A PCI Express switch utilizes a central crossbar memory for all ports of the switch. The crossbar memory retains the packet that is to be sent out and only the head pointer for the packet is transmitted to the transmission port. The crossbar memory can also be used as the replay memory for the switch. A circuit for choosing the head pointer at a port for the packet to be sent out, is also disclosed.Type: ApplicationFiled: December 9, 2003Publication date: June 9, 2005Inventors: Stephen Li, Brian Deng, Paul Howard, Dave Kimble
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Patent number: 6894401Abstract: A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of a welding output operating parameter. The feedback may also be taken from the inverter or generator, and the generator may be controlled instead of or in addition to the engine. Engine parameters that may be controlled include engine speed, selecting between an idle speed and a run speed, a throttle position, a fuel pump, an injection timer, a fuel to air ratio, fuel consumption and ignition timing. Another aspect of the invention is having the feedback be responsive to one or more of the welding current, welding voltage, welding power, or functions thereof. The feedback may be responsive to the current, voltage, power, ripple and functions thereof.Type: GrantFiled: July 29, 2003Date of Patent: May 17, 2005Assignee: Illinois Tool Works Inc.Inventors: Richard Beeson, Stephen Li, Alan Smith
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Patent number: 6794423Abstract: The present invention relates to a tough, wear resistant Ultra High Molecular Weight Polyethylene (UHMWPE) prepared by the cross linking of a UHMWPE shaped article with irradiation doses higher than 4 Mrads, preferably higher than 5 Mrads, and most preferably less than 10 Mrads. The invention particularly provides total joint replacement devices and methods of making them for the hip, knee, elbow and shoulder.Type: GrantFiled: July 26, 2000Date of Patent: September 21, 2004Inventor: Stephen Li
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Publication number: 20040060912Abstract: A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of a welding output operating parameter. The feedback may also be taken from the inverter or generator, and the generator may be controlled instead of or in addition to the engine. Engine parameters that may be controlled include engine speed, selecting between an idle speed and a run speed, a throttle position, a fuel pump, an injection timer, a fuel to air ratio, fuel consumption and ignition timing. Another aspect of the invention is having the feedback be responsive to one or more of the welding current, welding voltage, welding power, or functions thereof. The feedback may be responsive to the current, voltage, power, ripple and functions thereof.Type: ApplicationFiled: July 29, 2003Publication date: April 1, 2004Applicant: Illinois Tool Works Inc.Inventors: Richard Beeson, Stephen Li, Alan Smith
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Patent number: 6674179Abstract: A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of a welding output operating parameter. The feedback may also be taken from the inverter or generator, and the generator may be controlled instead of or in addition to the engine. Engine parameters that may be controlled include engine speed, selecting between an idle speed and a run speed, a throttle position, a fuel pump, an injection timer, a fuel to air ratio, fuel consumption and ignition timing. Another aspect of the invention is having the feedback be responsive to one or more of the welding current, welding voltage, welding power, or functions thereof. The feedback may be responsive to the current, voltage, power, ripple and functions thereof.Type: GrantFiled: September 30, 2002Date of Patent: January 6, 2004Assignee: Illinois Tool Works Inc.Inventors: Richard Beeson, Stephen Li, Alan Smith