Patents by Inventor Li Heng

Li Heng 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).

  • Patent number: 7089440
    Abstract: A data processing system includes first, second, and third agents connected to a shared bus. The third agent is able to receive information via the shared bus from the first agent or from the second agent. The third agent includes a skew compensation circuit to determine signal skew in signal received via the shared bus and to compensate for the skew by adding delay into selected signals of the bus. The skew compensation circuit determines whether the first agent or the second agent is the sender of information received by the third agent via the shared bus. The skew compensation circuit alters the skew compensation based on the identity of the sender such that the delay into the bus signals is specific to the corresponding sender.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: August 8, 2006
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu
  • Publication number: 20060069042
    Abstract: This invention is to provide multiple specific inhibitors of cytochrome P450 isozyme CYP2C9. These inhibitors can be derived from any combinations with the following compounds including: Tamarixetin, Formononetin, isoliquritigenin, Phloretin, luteolin, Quercitrin, quercetin, myricetin, Wongonin, Puerarin, Genistein, Nordihydroguaiaretic acid, Narigenin, Capillarisin, Chrysin, Fisefin, eriodictyol, 6-Gingerol, Isorhamneti, isoquercitrin, Morin, (+)-Taxifolin, isovitexin, 3-Phenylpropyl Acetate, Oleanolic acid, ursolic acid, ?-Myrcene, cinnamic acid, Luteolin-7-Glucoside, Liquiritin, (+)Limonene, Homoorientin, Swertiamarin, Embelin, Daidzein, Poncirin, (?)-Epicatechin, ergosterol. These natural products can be used to enhance the bioavailability of therapeutic agents (drugs).
    Type: Application
    Filed: September 24, 2004
    Publication date: March 30, 2006
    Inventors: Oliver Hu, Hong-Jaan Wang, Cheng-Huei Hsiong, Li-Heng Pao
  • Publication number: 20060040875
    Abstract: A UGT2B inhibitor capable of increasing the bio-availability of a drug, being a compound in a free base or a pharmaceutically acceptable salt form that is selected from the group consisting of: capillarisin, isorhamnetin, ?-naphthoflavone, ?-naphthoflavone, hesperetin, terpineol, (+)-limonene, ?-myrcene, swertiamarin, eriodictyol, cineole, apigenin, baicalin, ursolic acid, isovitexin, lauryl alcohol, puerarin, trans-cinnamaldehyde, 3-phenylpropyl acetate, isoliquritigenin, paeoniflorin, gallic acid, genistein, glycyrrhizin, protocatechuic acid, ethyl myristate, umbelliferone, and a combination thereof.
    Type: Application
    Filed: January 5, 2005
    Publication date: February 23, 2006
    Inventors: Yoa-Pu Oliver, Cheng-Huei Hsiong, Mei-Ting Wang, Li-Heng Pao
  • Publication number: 20060001590
    Abstract: A method for tuning a resonant frequency of an antenna includes the steps of providing an antenna having a radiating element operating at a present resonant frequency, determining a target operating frequency of the antenna, mensurating the present resonant frequency of the antenna and calculating a frequency offset between the present resonant frequency and the target operating frequency, providing a dielectric film covered on the radiating element, tuning an thickness and an area of the dielectric film, and repeating the mensurating step and the tuning step till the frequency offset reaches zero.
    Type: Application
    Filed: April 7, 2005
    Publication date: January 5, 2006
    Inventors: Chen-Ta Hung, Hsin Dai, Li-Heng Chen, Hsiang-Hui Shen
  • Publication number: 20050195397
    Abstract: A semiconductor wafer is disclosed that includes a plurality of fields, including a plurality of alignment fields. Each alignment field includes a plurality of intra-field small scribe lane primary mark (SSPM) overlay mark pairs there around. The SSPM mark pairs allow for in-situ, non-passive intra-field alignment correction. In one embodiment, there may be between two and four alignment fields, and between two and four SSPM mark pairs around each alignment field. The SSPM marks of each mark pair may be extra scribe-lane marks.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 8, 2005
    Inventors: Grace Ho, Ming-Che Wu, Li-Heng Chou, Hung-Chang Hsieh, Jung Chen, Yao-Ching Ku
  • Patent number: 6845436
    Abstract: A memory system for a data processor whereby a plurality of memory devices, or storage chips, are coupled to a memory controller. There may be one, two, or more such memory devices, wherein some of the memory devices may be coupled to the memory controller via a single data bus, with an alternative embodiment including a second plurality of such memory devices coupled to the memory controller via a second data bus. Two separate clock buses are used to transport data between the memory controller and the various memory devices. A first clock bus is used to synchronize the transfer of data from the memory controller to a memory device. This clock bus will have a clock signal generated at the memory controller through a clock generation circuitry as a function of a system clock received by the memory controller.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: January 18, 2005
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu
  • Patent number: 6814580
    Abstract: A rotatable connector comprises a pedestal, a spring, a holding plate, a universal coupling and a receptacle. The pedestal has a base plate, several ledges and a pair of pillars extending upwardly from the base plate. The pillars stand opposite sides of the base plate and outside the ledges. Each pillar has a hole therein. The spring is arranged to encase the ledges. A plurality of bulges is projected outwardly from an outer edge of the holding plate and pressed on the spring. The universal coupling has a first pivot, a second pivot and a shaft. The first and the second pivots are pivotally engaged by the shaft. Ends of the first pivot are pivotally inserted into the holes of the pillars. One end of second pivot engages with the holding plate, while the other end is fixed to the receptacle. The receptacle is electrically and mechanical connected to a cable end plug.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: November 9, 2004
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Li-Heng Li, Ming-Gang Mu
  • Publication number: 20040198085
    Abstract: A rotatable connector comprises a pedestal, a spring, a holding plate, a universal coupling and a receptacle. The pedestal has a base plate, several ledges and a pair of pillars extending upwardly from the base plate. The pillars stand opposite sides of the base plate and outside the ledges. Each pillar has a hole therein. The spring is arranged to encase the ledges. A plurality of bulges is projected outwardly from an outer edge of the holding plate and pressed on the spring. The universal coupling has a first pivot, a second pivot and a shaft. The first and the second pivots are pivotally engaged by the shaft. Ends of the first pivot are pivotally inserted into the holes of the pillars. One end of second pivot engages with the holding plate, while the other end is fixed to the receptacle. The receptacle is electrically and mechanical connected to a cable end plug.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 7, 2004
    Inventors: Li-Heng Li, Ming-Gang Mu
  • Patent number: 6661859
    Abstract: A synchronizer for providing a source-synchronized clock bus reduces the effect of clock skew during the signal capturing process. The synchronizer includes at least one capture latch in the capture clock domain for capturing the signal, at least one storage latch for storing the signal coupled to the at least one capture latch, and a multiplexer coupled to the at least one storage latch. The multiplexer synchronizes data transfer of the at least one storage latch and the at least one capture latch, and an internal latch in the internal clock domain. The signal is controlled and processed by strobe signals and clock signals from the sending chip.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: December 9, 2003
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu
  • Publication number: 20030166584
    Abstract: The present invention provides cytochrome P450 3A (CYP3A) inhibitors and enhancers. Examples of the CYP3A inhibitors include free bases or pharmacologically acceptable salts of at least one of the following compounds: &agr;-naphthoflavone, &bgr;-naphthoflavone, apigenin, baicalein, &bgr;-myrcene, catechin, 3-phenylpropyl acetate, formononetin, gallic acid, hesperetin, hesperidin, isoquercitrin, lauryl alcohol, luteolin, luteolin-7-glycoside, narigin, nordihydroguaiaretic acid, quercitrin, swertiamarin, terpineol, and trans-cinnamaldehyde. Examples of the CYP3A enhancers include free bases or pharmacologically acceptable salts of at least one of the following compounds: apigenin, formononetin, and luteolin-7-glycoside. The CYP3A inhibitors can be used, alone or co-administered with a drug, to improve the drug bioavailability.
    Type: Application
    Filed: February 22, 2002
    Publication date: September 4, 2003
    Inventors: Oliver Yoa-Pu Hu, Cheng-Huei Hsiong, Benjamin Pei-Chung Kuo, Li-Heng Pao
  • Publication number: 20030166583
    Abstract: The present invention provides dermal cytochrome P450 1A (CYP1A) inhibitors, which include free base or pharmacologically acceptable salt of (−)-epicatechin, (+)-epicatechin, (+)-limonene, 3-phenylpropyl acetate, &agr;-naphthoflavone, apigenin, baicalein, baicalin, &bgr;-myrcene, catechin, &bgr;-naphthoflavone, cineole, daidzein, daidzin, diosmin, ergosterol, formononetin, gallic acid, genistein, glycyrrhizin, glycyrrhizic acid, hesperetin, hesperidin, isoquercitrin, kaempferol, lauryl alcohol, luteolin, luteolin-7-glycoside, narigenin, narigin, nordihydroguaiaretic acid, oleanolic acid, paeoniflorin, quercetin, quercitrin, rutin, swertiamarin, terpineol, trans-cinnamaldehyde, trans-cinnamic acid, umbelliferone, genkwanin, homoorientin, isovitexin, neohesperidin, wongonin, capillarisin, liquiritin, ethyl myristate, poncirin, and ursolic acid.
    Type: Application
    Filed: February 22, 2002
    Publication date: September 4, 2003
    Inventors: Oliver Yoa-Pu Hu, Cheng-Huei Hsiong, Chao-Jih Wang, Li-Heng Pao
  • Patent number: 6162659
    Abstract: A method for manufacturing package structure integrated circuit chips having a heat spreader is disclosed. A wiring substrate is first provided. An integrated circuit chip, having a first surface and a second surface, is then electrically and mechanically connected to the wiring substrate via a first set of solder joints. A heat spreader is subsequently connected to the second surface of the integrated circuit chip via a second set of solder joints. The heat spreader includes an adhesion-promotion layer on a silicon layer.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: December 19, 2000
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu
  • Patent number: 6105144
    Abstract: In order to transmit several data words in succession over a bus between components in a data processing system, the skew between the various bus lines has to be compensated in order that each data word is accurately received. The skew compensation is implemented by setting predetermined delays on certain bus lines in response to the comparison of a test pattern with an ideal situation.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: August 15, 2000
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu
  • Patent number: 6029520
    Abstract: The technology used in the present invention is acousto-ultrasonics (AU), in which a transmitted signal, at a controlled frequency is injected into a specimen with one transducer and received at another location by another transducer, permitting evaluation of the condition of the material in the signal path. In the experiments that were made using the present invention, the material within the press was a particleboard mat having the signal injected into the edge of one platen and received at the edge of the second platen. The AU signal received at the second platen is initially in response to pressure changes in the mat and subsequently follows the progression of internal bonding of the material. Since the propagated wave through the mat reacts to resin curing during the last phase of pressing, changes in material or press variables are reflected directly in shifts of the curve received at the second platen.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: February 29, 2000
    Assignee: The Regents of the University of California
    Inventors: Frank C. Beall, Li-Heng Chen
  • Patent number: 5828259
    Abstract: A decoupling capacitor for an integrated circuit is operatively coupled to a supply and to control circuitry for isolating the capacitor. The control circuitry automatically isolates the capacitor in response to a current through the capacitor exceeding a certain threshold, but tends to restore the capacitor to operation if the current is merely caused by momentary conditions, rather than substantial failure of the capacitor. The control circuitry includes a first control device for automatically switching to an off state to isolate the capacitor in response to a voltage produced by the current exceeding a certain threshold. A discharging device tends to discharge the voltage and automatically turn on the first device when the current is caused by momentary conditions. The discharging device may include a control device responsive to an external control signal for switching the first control device on and off.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: October 27, 1998
    Assignee: International Business Machines Corporation
    Inventors: Moises Cases, Leon Li-heng Wu
  • Patent number: 5777385
    Abstract: An improved package structure for integrated-circuit chips is disclosed. In accordance with a preferred embodiment of the present invention, the integrated-circuit packaged structure comprises a wiring substrate, an integrated-circuit chip, and a heat spreader. The integrated-circuit chip has a first surface and a second surface, wherein the first surface is electrically and mechanically connected to the wiring substrate via a first set of solder joints. The heat spreader is connected to the second surface of the integrated-circuit chip via a second set of solder joints. The heat spreader includes an adhesion-promotion layer on top of a silicon layer, such that heat generated from the integrated-circuit chip can be efficiently transmitted to and subsequently dissipated by the heat spreader.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: July 7, 1998
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu
  • Patent number: 5584742
    Abstract: A rocking ornament in a tray, which comprises a tray with an ornamental pattern, and the front recess portion of the tray is mounted with a rocking member; the back side of the rocking member has an elongate slot, which is to be engaged with a stud on an eccentric wheel connected with transmission device in a mechanism chamber behind the tray; the lower part of the rocking member has a through hole for receiving a screw spindle with a shaft, and the screw spindle is to be fastened to the tray as a supporting shaft to the rocking member; the rocking member can move circularly with the stud on the eccentric wheel simultaneously upon of the transmission device in the mechanism chamber driving the eccentric wheel, and then the rocking member will sway laterally and regularly.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: December 17, 1996
    Inventor: Li-Heng Chen
  • Patent number: 3969670
    Abstract: Disclosed is a technique for testing functional circuit units of an integrated circuit. For each separate functional circuit unit desired to be tested, a capacitor is connected to each input while a diode is connected to each output. An electron beam then selectively renders first the selected capacitors conductive, permitting the application of a desired input pattern, and then the selected diode is rendered conductive in the reverse direction, permitting sensing.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: July 13, 1976
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu