Patents by Inventor Yuan Yan

Yuan Yan 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: 20100090687
    Abstract: Magnetic shift tracks or magnetic strips, to which application of a rotating magnetic field or by rotation of the strip itself allows accurate determination of domain wall movement. One particular embodiment is a method of determining a position of a domain wall in a magnetic strip. The method includes applying a rotating magnetic field to the magnetic strip, the magnetic field rotating around a longitudinal axis of the magnetic strip, and after applying the magnetic field, determining a displacement of the domain wall to a second position.
    Type: Application
    Filed: July 9, 2009
    Publication date: April 15, 2010
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Xiaobin Wang, Haiwen Xi, Yiran Chen, Yuan Yan, Jun Zheng
  • Publication number: 20100095052
    Abstract: Various embodiments of the present invention are generally directed to an apparatus and associated method for updating data in a non-volatile memory array. In accordance with some embodiments, a memory block is formed with a plurality of types of memory cell sectors arranged in data pages of a first type and log pages of a second type that can be updated in-place. A first updated sector is written to a first log page while maintaining an outdated sector in an original data page, and overwritten with a second updated sector.
    Type: Application
    Filed: June 11, 2009
    Publication date: April 15, 2010
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Yiran Chen, Hai Li, Wenzhong Zhu, Xiaobin Wang, Yuan Yan, Harry Hongyue Liu
  • Publication number: 20100085797
    Abstract: A method and apparatus for accessing a non-volatile memory cell. In some embodiments, a memory block provides a plurality of memory cells arranged into rows and columns. A read circuit is configured to read a selected row of the memory block by concurrently applying a control voltage to each memory cell along the selected row and, for each column, using a respective local sense amplifier and a column sense amplifier to successively differentiate a voltage across the associated memory cell in said column to output a programmed content of the row.
    Type: Application
    Filed: June 24, 2009
    Publication date: April 8, 2010
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Hai Li, Yiran Chen, Yuan Yan, Brian Lee, Ran Wang
  • Publication number: 20090232073
    Abstract: The present invention discloses a method and apparatus of physical resource allocation as well as a method of data receiving and a receiving end in a wireless communication system. The method of physical resource allocation includes: detecting a pilot signal sent by each user within a designated range; obtaining received power of the pilot signal sent by each user; scheduling each user within the designated range to obtain a user group including at least one user according to the received power; and allocating a same physical resource to each user of the user group. According to the method and the apparatus, it is possible to reuse a physical resource and sequentially decode data packets corresponding to users in a user group occupying the same physical resource according to the Capture Effect and interference cancellation technology, thereby improving the spectrum efficiency and throughput of uplink or downlink greatly.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 17, 2009
    Inventors: Yuan Yan, Anxin Li, Xiangming Li, Hidetoshi Kayama
  • Patent number: 7560473
    Abstract: The present invention provides amine derivatives represented by formula I, its isomers, racemes or optical isomers, pharmaceutical salts thereof, its amides or esters, pharmaceutical compositions containing said compounds and the preparation methods thereof. The invention also relates to the use of the above mentioned compounds in the preparation of drugs for the prophylaxis or treatment of cardiovascular diseases, diabetes, bronchial and urinary smooth muscle spasm as well as ischemic and anoxic nerve injury. The above compounds can be used to treat hypertension, angina diaphragmatic, myocardial infarction, congestive heart failure, arrhythmia, diabetes, spasmodic bronchial diseases, spasmodic bladder or ureter diseases, and depression.
    Type: Grant
    Filed: January 21, 2002
    Date of Patent: July 14, 2009
    Assignee: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences, P.L.A.
    Inventors: Hai Wang, Liuhong Yun, Huasong Feng, Fulin Li, Xingchun Tang, Huamei He, Rifang Yang, Wenyu Cui, Qixiu Gao, Gang Hu, Rusheng Zhao, Wei Liu, Chaoliang Long, Lin Wang, Xinqiang Lu, Lijun Liu, Yuan Yan
  • Patent number: 7287014
    Abstract: A plausible neural network (PLANN) is an artificial neural network with weight connection given by mutual information, which has the capability of inference and learning, and yet retains many characteristics of a biological neural network. The learning algorithm is based on statistical estimation, which is faster than the gradient decent approach currently used. The network after training becomes a fuzzy/belief network; the inference and weight are exchangeable, and as a result, knowledge extraction becomes simple. PLANN performs associative memory, supervised, semi-supervised, unsupervised learning and function/relation approximation in a single network architecture. This network architecture can easily be implemented by analog VLSI circuit design.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: October 23, 2007
    Inventors: Yuan Yan Chen, Joseph Chen
  • Publication number: 20040266822
    Abstract: The present invention provides amine derivatives represented by formula I, its isomers, racemes or optical isomers, pharmaceutical salts thereof, its amides or esters, pharmaceutical compositions containing said compounds and the preparation methods thereof. The invention also relates to the use of the above mentioned compounds in the preparation of drugs for the prophylaxis or treatment of cardiovascular diseases, diabetes, bronchial and urinary smooth muscle spasm as well as ischemic and anoxic nerve injury. The above compounds can be used to treat hypertension, angina diaphragmatic, myocardial infarction, congestive heart failure, arrhythmia, diabetes, spasmodic bronchial diseases, spasmodic bladder or ureter diseases, and depression.
    Type: Application
    Filed: August 12, 2004
    Publication date: December 30, 2004
    Inventors: Hai Wang, Liuhong Yun, Huasong Feng, Fulin Li, Xingehun Tang, Huamei He, Rifang Yang, Wenyu Cui, Qixiu Gao, Gang Hu, Rusheng Zhao, Wei Liu, Chaoliang Long, Lin Wang, Xinqiang Lu, Lijun Liu, Yuan Yan
  • Publication number: 20030140020
    Abstract: A plausible neural network (PLANN) is an artificial neural network with weight connection given by mutual information, which has the capability of inference and learning, and yet retains many characteristics of a biological neural network. The learning algorithm is based on statistical estimation, which is faster than the gradient decent approach currently used. The network after training becomes a fuzzy/belief network; the inference and weight are exchangeable, and as a result, knowledge extraction becomes simple. PLANN performs associative memory, supervised, semi-supervised, unsupervised learning and function/relation approximation in a single network architecture. This network architecture can easily be implemented by analog VLSI circuit design.
    Type: Application
    Filed: November 15, 2002
    Publication date: July 24, 2003
    Inventors: Yuan Yan Chen, Joseph Chen
  • Publication number: 20020010691
    Abstract: An apparatus and method for performing parallel distributed processing are disclosed. A plurality of nodes are connected with weight connections. The weight connections are updated based on a likelihood function of the associated nodes. Also, inputs to nodes are aggregated using t-norm or t-conorm functions, with outputs representing the possibility and belief measures. The aggregation methods presented offer an improvement over many other classification methods. Because of the form of the output, additional data evidence, including additional attributes, may be taken into account to improve classification without retraining the original data.
    Type: Application
    Filed: March 15, 2001
    Publication date: January 24, 2002
    Inventor: Yuan Yan Chen
  • Patent number: 4994172
    Abstract: A process for preparing a pipelineable oil from a heavy crude oil by thermally treating the oil in the absence of added hydrogen, and under sufficiently severe conditions to induce the formation of an upgraded, low viscosity oil phase and a liquid asphalt phase that contains dispersed coke. The reaction is conducted under pressure sufficient to retain in the reactor most of the normally liquid hydrocarbons, under which conditions the two phases are readily separated and recovered solely by gravity settling. The process is readily adapted to oil field use with skid mounted units. The severity is adjusted to provide sufficient asphalt which, when burned, furnishes the steam required for production of the heavy crude oil.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: February 19, 1991
    Assignee: Mobil Oil Corporation
    Inventors: John S. Buchanan, Lillian A. Rankel, Tsoung-Yuan Yan
  • Patent number: 4582595
    Abstract: Disclosed is a catalyst and process for making same wherein sepiolite is ion exchanged with a Group Ib, IIb, IIb, IVb, Vb, or VIIa metal, impregnated with a VIa metal and exchanged with a magnesium salt with intervening processing steps of calcining. The catalyst composition is useful in removing metals and hydroprocessing of hydrocarbon feedstocks. The catalyst can also be mixed with a high silica/alumina ratio zeolite such as sodium ZSM-5 zeolite.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: April 15, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Costandi A. Audeh, Tsoung-Yuan Yan
  • Patent number: 4544479
    Abstract: Visbreaking of heavy metals containing oil with 5 to 30, preferably 15 to 25 wt % pulverized coal gives good demetallation of oil and produces a solids product with a high metals content suitable for use as a synthetic, metal bearing ore.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: October 1, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Tsoung-Yuan Yan
  • Patent number: 4529408
    Abstract: A method is described for preparing a solid fuel in the form of a coal/liquid slurry for use in small furnaces. The fuel has a relatively uniform heating value of 10,000 to 14,000 Btu per pound and is prepared by crushing and grinding coal to less than 200 mesh, blending the coal fines with additives for SO.sub.x abatement, for ignition and oxidation promotion, and ash modifiers to improve the combustion quality of the fuel. The blended coal mixture is wetted with water and then slurried with oil, water or alcohol to form a thick slurry. The thick slurry is stabilized by proper selective of surfactants, polymers and other additives by way of interparticle bonding or bridging to provide a pumpable solid fuel that is stable in storage.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: July 16, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Tsoung-Yuan Yan
  • Patent number: 4524231
    Abstract: Durene is recovered from a mixture rich in durene and containing hydrocarbons boiling in the gasoline range by cooling the mixture to a point where crystallization occurs and separating the crystallized durene. The durene subsequently is washed with a wash fluid. The wash fluid which can be methanol, is returned to a process wherein it is converted to gasoline and durene. The separated mother liquor is added to the gasoline fraction. The original mixture of durene and gasoline is obtained by the catalytic conversion of alcohols and ethers.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: June 18, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Patrick E. Fowles, Tsoung-Yuan Yan
  • Patent number: 4524228
    Abstract: Synthesis gas is catalytically converted to a feedstock comprising durene and gasoline. Durene is recovered from the feedstock by cooling it to a point where crystallization occurs and separating the crystallized durene. The durene subsequently is washed with a wash fluid. The wash fluid which can be methanol, is returned to a process wherein it is converted to gasoline and durene. The separated mother liquor is added to the gasoline fraction.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: June 18, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Patrick E. Fowles, Tsoung-Yuan Yan
  • Patent number: 4524227
    Abstract: Durene is recovered from a mixture rich in durene and containing hydrocarbons boiling in the gasoline range by cooling the mixture to a point where crystallization occurs and separating the crystallized durene. The durene subsequently is washed with a wash fluid. The wash fluid which can be methanol, is returned to a process wherein it is converted to gasoline and durene. The separated mother liquor is added to the gasoline fraction. The original mixture is obtained by the catalytic conversion of synthesis gas and methanol or by other means.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: June 18, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Patrick E. Fowles, Tsoung-Yuan Yan
  • Patent number: 4495152
    Abstract: An apparatus for recovering uranium and/or related values which include means for protecting ion-exchange resins in the recovery operation from oxidative degradation due to contact with hydrogen peroxide. A guard chamber is positioned in the elution circuit so that barren eluant, after it is stripped of its uranium and/or related values by treatment with hydrogen peroxide, will flow through the chamber. The guard chamber contains catalytic material, e.g. activated carbon, which decomposes hydrogen peroxide upon contact into water and oxygen. The barren eluant, after it passes through the catalytic material, is used to make up fresh eluant for reuse in the recovery method without the risk of the fresh eluant causing oxidative degradation of the resins.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: January 22, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Tsoung-yuan Yan, Raymond L. Lozano
  • Patent number: 4478709
    Abstract: A method for reducing the pour point of a hydrocarbon oil which comprises contacting said oil under dewaxing conditions with a zeolite dewaxing catalyst thereby forming a dewaxed oil that contains olefins, and contacting said dewaxed oil and said contained olefins with a solid acidic catalyst under conditions effective to increase the stability of said oil.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: October 23, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Tsoung-Yuan Yan
  • Patent number: 4474408
    Abstract: The ammonium ions in a subterranean clay-containing formation may be removed by flushing the formation with a calcium ion containing restoration fluid having substantially the highest pH effective to prevent precipitation of calcium hydroxide from said restoration fluid. The calcium ion concentration in the restoration fluid is maintained between about 10,000 and 100,000 ppm until the ammonia concentration in the produced fluid peaks or is less than about 100 ppm. Thereafter the calcium ion concentration is maintained at about 400 to about 600 ppm until the desired level of ammonia is obtained, usually about 1-3 ppm.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: October 2, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Billy J. Dotson, Tsoung-Yuan Yan
  • Patent number: 4469807
    Abstract: Disclosed is a catalyst and process for making same wherein sepiolite is ion exchanged with a Group Ib, IIb, IIIb, IVb, Vb, or VIIa metal, impregnated with VIa metal and exchanged with a magnesium salt with intervening processing steps of calcining. The catalyst composition is useful in removing metals and hydroprocessing of hydrocarbon feedstocks. The catalyst can also be mixed with a high silica/alumina ratio zeolite such as sodium ZSM-5 zeolite.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: September 4, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Costandi A. Audeh, Tsoung-Yuan Yan