Patents by Inventor Chao Zhang

Chao Zhang 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).

  • Publication number: 20060036769
    Abstract: Systems and methods in accordance with various embodiments relate to a storage switch including task processing synchronization. In embodiments of the present invention, the packet processing units may generate and store Task Index and Generation Count information that prevents the processing of expired commands or responses. Additionally or alternatively, embodiments of the present invention may further employ timeout sequences to prevent previous instances of a stale task resource from disrupting the current use of the task resource.
    Type: Application
    Filed: April 30, 2004
    Publication date: February 16, 2006
    Inventors: Robert Frey, Chao Zhang
  • Publication number: 20060036821
    Abstract: A storage switch is disclosed that facilitates mirroring of data. For example, a target is mirrored when an identical (or almost identical) copy of the data is stored in two or more separate physical data stores. Because the various data stores may not be homogenous, they may provide for different burst sizes. To accommodate the different burst sizes, the switch provides different sequence counts for data packets sent to the different data stores that store the mirrored data.
    Type: Application
    Filed: April 30, 2004
    Publication date: February 16, 2006
    Inventors: Robert Frey, Chao Zhang
  • Patent number: 6995087
    Abstract: An integrated circuit manufacturing method includes providing a base, forming a first conductor, forming a first barrier layer, forming a first dielectric layer, and forming a masking layer. The method further including forming a first via opening in the masking layer, forming a first trench opening in the masking layer, and simultaneously forming a second via opening in a layer under the masking layer, and forming a second trench opening through the masking layer and in the layer under the masking layer and simultaneously forming a third via opening in another layer under the masking layer. The method further including removing the first barrier layer using the third via opening and the masking layer to form a trench and a via, and filling the trench and the via with a conductor to form a trench and via conductor in contact with the first conductor.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 7, 2006
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Wuping Liu, Juan Boon Tan, Bei Chao Zhang, Alan Cuthbertson
  • Publication number: 20060013540
    Abstract: An optical transceiver module includes an electrical interface adapted to receive or output an electrical signal, an optical interface adapted to receive or output an optical signal, and an optical transceiver component. The optical transceiver component includes an Avalanche Photo Diode (APD) that converts an optical signal from the optical interface to an electrical signal; and a laser unit that converts an electrical signal from the electrical interface to an optical signal.
    Type: Application
    Filed: July 19, 2004
    Publication date: January 19, 2006
    Inventors: Chao Zhang, Xiaobo Tang, Yong Yao
  • Publication number: 20060010299
    Abstract: Systems and methods can provide mirrored virtual targets and online synchronization and verification of the targets while avoiding deadlock, inconsistencies between members of the target, and false verification failures. A lock within the storage switch can limit the number of outstanding commands for a physical target to one during synchronization and verification operations. In one embodiment, a lock can be implemented as one or more resource tables maintaining an indication of the number of transfer ready signals available from physical targets. During typical write operations, deadlock can be avoided by determining whether each physical target for the mirrored operation can issue a transfer ready signal prior to issuing a command to the physical target. When a synchronization or verification operation begins, the maximum available number of transfer ready signals for each target can be decremented to one in order to limit the total number of outstanding commands for each target to one.
    Type: Application
    Filed: August 31, 2004
    Publication date: January 12, 2006
    Inventors: Chao Zhang, Robert Tower Frey
  • Publication number: 20050288354
    Abstract: Compounds are described that are active on PPARs, including pan-active compounds. Also described are methods for developing or identifying compounds having a desired selectivity profile.
    Type: Application
    Filed: September 8, 2004
    Publication date: December 29, 2005
    Inventors: James Arnold, Dean Artis, Clarence Hurt, Prabha Ibrahim, Heike Krupka, Jack Lin, Michael Milburn, Weiru Wang, Chao Zhang
  • Publication number: 20050259994
    Abstract: An optical transceiver module includes a first Printed Circuit Board having a first function circuit connected with the electrical interface and a second Printed Circuit Board having a second function circuit that is electrically connected with the first function circuit. The second Printed Circuit Board is disposed substantially perpendicular to the first Printed Circuit Board.
    Type: Application
    Filed: May 20, 2004
    Publication date: November 24, 2005
    Inventors: Chao Zhang, Yuanjun Huang, Qing Huang, Zhiyong Jiang, Qiuming Wei
  • Publication number: 20050262309
    Abstract: Systems and methods in accordance with various embodiments can manage transfer ready resources of one or more physical targets to avoid deadlock of a storage switch or storage area network when attempting to write data to a mirrored virtual target. When writing data to a mirrored virtual target, a storage switch simultaneously or synchronously routes data from an initiator to multiple physical locations, such as multiple physical targets. A switch or network can become deadlocked while waiting to receive a transfer ready resource from each of the physical targets involved in the operation. In accordance with an embodiment, a storage switch determines the availability of a transfer ready resource from a physical target prior to issuing a write command to the target. In this manner, the switch can ensure that the target will be available to issue a transfer ready signal when a write command is issued, thus alleviating potential deadlock situations.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 24, 2005
    Inventors: Robert Frey, Chao Zhang
  • Patent number: 6967156
    Abstract: A method of forming an aligned dual damascene opening, comprising including the following sequential steps. A layer stack is formed over the metal structure. The layer stack comprises, in ascending order: a bottom etch stop layer; a lower dielectric material layer; a middle etch stop layer; a middle dielectric material layer; and an upper dielectric layer. A patterned mask layer is formed over the patterned upper dielectric layer leaving exposed opposing portions of the patterned upper dielectric layer. The middle dielectric material layer is patterned to form an opening therein using the patterned mask layer and the exposed portions of the upper dielectric layer as masks.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: November 22, 2005
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Yeow Kheng Lim, Wuping Liu, Tae Jong Lee, Bei Chao Zhang, Juan Boon Tan, Alan Cuthbertson, Chin Chuan Neo
  • Publication number: 20050246504
    Abstract: Systems and methods in accordance with various embodiments can detect and alleviate potential or actual deadlock of a storage switch or storage area network when attempting to write data to a mirrored virtual target. In accordance with one embodiment, a timer is started when a storage switch routes a write command to the physical targets corresponding to a virtual target of the write command. If each physical target does not return a transfer ready resource within a predetermined timeout period, the switch determines that a potential or actual deadlock has occurred. An abort command is sent to each of the physical devices. The abort command can clear the command from the targets and also free any allocated transfer ready resources. After receiving an acceptance response from each physical target, the state of the write command at the switch can be cleared. The write command can then be re-issued to the physical devices.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 3, 2005
    Inventors: Robert Frey, Chao Zhang
  • Publication number: 20050226626
    Abstract: An optical transceiver module includes a housing comprising a first end and a second end, an electrical interface associated with the first end and an optical interface associated with the second end. The electrical interface is adapted to be locked into a receiving cage. The optical interface is adapted to be connected with one or more optical transceiver components. The optical transceiver module includes a locating mechanism that restrains the one or more optical transceiver components. The optical transceiver module also includes a locking mechanism that can lock the optical transceiver module to a receiving cage. The optical transceiver module further includes an automatic-restoring unlocking mechanism comprising a sliding plate, an unlocking lever, and a restoration spring, wherein the automatic restoring unlocking mechanism automatically restores the sliding plate to the normal position after the optical transceiver module is unlocked from the receiving cage.
    Type: Application
    Filed: April 1, 2004
    Publication date: October 13, 2005
    Inventors: Chao Zhang, Zhong Yang, Xiaobo Tang, Linhua Zhang, Hongbin Wang
  • Publication number: 20050190990
    Abstract: A method and apparatus for combining a plurality of images is disclosed. In one embodiment, at least one signal component is determined from a plurality of source images using feature selective fusion. At least one color component is determined from the plurality of source images using color fusion. An output image is formed from the at least one signal component and the at least one color component. In another embodiment, at least one image component is determined from a plurality of source images using feature selective fusion. An output image is formed from the at least one image component using color fusion.
    Type: Application
    Filed: January 27, 2005
    Publication date: September 1, 2005
    Inventors: Peter Burt, Gooitzen Der Wal, Chao Zhang
  • Publication number: 20050135756
    Abstract: An optical transceiver module includes a housing comprising a first end and a second end, an electrical interface associated with the first end adapted to be locked into a receiving cage, and an optical interface associated with the second end. The optical transceiver module also includes a locking mechanism that can lock the optical transceiver module to a receiving cage and an automatic-restoring mechanism. The automatic-restoring unlocking mechanism comprises a sliding plate, an unlocking lever, and a restoration spring. The automatic-restoring unlocking mechanism automatically restores the sliding plate to the normal position after the optical transceiver module is unlocked from the receiving cage.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Inventors: Chao Zhang, Zhong Yang, Xiaobo Tang, Linhua Zhang, Hongbin Wang
  • Publication number: 20050085472
    Abstract: This invention generally relates to pyrazolo pyrimidine derivatives useful as, inter alia, inhibitors of short chain dehydrogenase/reductase (SDR) family of NAD(P)(H) dependent oxido-reductases. More specifically, the invention relates to pyrazolo pyrimidine derivatives, including derivatives and analogs of SDR inhibitors, pharmaceutical compositions containing derivatives and analogs of SDR inhibitors, methods of making derivatives and analogs of SDR inhibitors and methods of use thereof.
    Type: Application
    Filed: June 18, 2004
    Publication date: April 21, 2005
    Inventors: Masahiro Tanaka, Chao Zhang, Kevan Shokat, Alma Burlingame, Kirk Hansen, Raynard Bateman, Stephen DiMagno
  • Publication number: 20050039878
    Abstract: A heat pump and air conditioning system for a vehicle that has at least one coolant loop selectively connecting an engine cooling system with a heater core, a first coolant/refrigerant heat exchanger, and/or a second coolant/refrigerant heat exchanger, in order to warm a passenger compartment of the vehicle. The system also includes a refrigerant loop that includes a first expansion device between a condenser and evaporator, and a second expansion device between the first coolant/refrigerant heat exchanger and the second coolant/refrigerant heat exchanger. The refrigerant loop provides for cooling of the passenger compartment of the vehicle, as well as operating as a heat pump, together with the at least one coolant loop, to provide heat to the vehicle passenger compartment.
    Type: Application
    Filed: August 19, 2003
    Publication date: February 24, 2005
    Inventors: John Meyer, Chao Zhang, Zhaoli Yang, Evangelos Papoulis
  • Publication number: 20050038246
    Abstract: Compounds are described that are active on PPARs, including pan-active compounds. Also described are methods for developing or identifying compounds having a desired selectivity profile.
    Type: Application
    Filed: July 16, 2004
    Publication date: February 17, 2005
    Inventors: James Arnold, Dean Artis, Clarence Hurt, Prabha Ibrahim, Heike Krupka, Jack Lin, Michael Milburn, Weiru Wang, Chao Zhang
  • Publication number: 20050006063
    Abstract: A heat exchanger fin includes a plurality of vortex generator louvers spaced apart, such that there is a gap between adjacent louvers through which a fluid, such as air, flows. Each vortex generator louver is provided with one or more mini-vortex generators along an outer edge of the louver. The mini-vortex generators trigger vortices that flow across the vortex generator louvers.
    Type: Application
    Filed: July 11, 2003
    Publication date: January 13, 2005
    Inventor: Chao Zhang
  • Publication number: 20040131878
    Abstract: A method of sputtering a Ta layer comprised of alpha phase Ta on a Cu layer. An embodiment includes a Ta sputter deposition on a Cu surface at a substrate temperature less than 200° C. Another embodiment has a pre-cooling step at a temperature less than 100° C. prior to Ta layer sputter deposition. In another non-limiting example embodiment, a pre-clean step comprising an inert gas sputter is performed prior to the tantalum sputter. Another non-limiting example embodiment provides a semiconductor structure comprising: a semiconductor structure; a copper layer over the semiconductor structure; a tantalum layer on the copper layer; the tantalum layer comprised alpha phase Ta; a metal layer on the tantalum layer.
    Type: Application
    Filed: January 3, 2003
    Publication date: July 8, 2004
    Inventors: Chim Seng Seet, Bei Chao Zhang, San Leong Liew, John Sudijono, Lai Lin Clare Yong
  • Publication number: 20040121585
    Abstract: An integrated circuit manufacturing method includes providing a base, forming a first conductor, forming a first barrier layer, forming a first dielectric layer, and forming a masking layer. The method further including forming a first via opening in the masking layer, forming a first trench opening in the masking layer, and simultaneously forming a second via opening in a layer under the masking layer, and forming a second trench opening through the masking layer and in the layer under the masking layer and simultaneously forming a third via opening in another layer under the masking layer. The method further including removing the first barrier layer using the third via opening and the masking layer to form a trench and a via, and filling the trench and the via with a conductor to form a trench and via conductor in contact with the first conductor.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Applicant: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Wuping Liu, Juan Boon Tan, Bei Chao Zhang, Alan Cuthbertson
  • Patent number: 6714569
    Abstract: The design of a special type of optical superlattice and its application in the all-solid state laser is involved in this invention. Nd ions doped laser crystal in common use can radiate three relatively intense spectral lines when excited: the first wavelength is around 900 nm; the second wavelength is around 1064 nm; the third wavelength is around 1300 nm, whose accurate wavelength are depended on their host crystal (for example, to Nd:YAG, they are 946 nm, 1064 nm and 1319 nm, respectively). On the other hand, for LiNbO3 (LN), LiTaO3 (LT), KTP and other ferroelectric crystals, the positive and negative 180° ferroelectric domains in these crystals can be arranged orderly according to certain sequence via crystal growth, electric field poling, and other state-of-the-art domain reversion technique, forming superlattice that is applicable to quasi-phase-matching (QPM) laser frequency conversion.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: March 30, 2004
    Assignee: Nanjing University
    Inventors: Shining Zhu, Jingliang He, Yongyuan Zhu, Huitian Wang, Guozheng Ruo, Chao Zhang, Yiqiang Qin, Naiben Ming