Patents by Inventor Le TU
Le TU 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: 12204967Abstract: A method is disclosed that includes: obtaining two-dimensional code of a to-be-generated two-dimensional code image; performing error resilient coding by using a coding algorithm with a predetermined error-tolerant rate, to obtain error-tolerant-processed two-dimensional code; determining a code element shape that is corresponding to each data information bit in the error-tolerant-processed two-dimensional code and that is in a generation region of the two-dimensional code image; determining, according to a predetermined arrangement rule of the two-dimensional code, first position information that is corresponding to each data information bit of the error-tolerant-processed two-dimensional code and that is in the generation region; determining second position information of each positioning point bit in the generation region; and generating the two-dimensional code image based on the first position information, the code element shape corresponding to each data information bit, and the second position informatType: GrantFiled: March 18, 2022Date of Patent: January 21, 2025Assignee: ALIPAY.COM CO., LTD.Inventors: Yinhai Tu, Le Tao
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Publication number: 20240231775Abstract: A program compilation method and apparatus operate by: obtaining a first expression and a second expression of a program, where the first expression and the second expression generate a dependency relationship based on a first variable, and operation types of the first variable in the first expression and the second expression are different, and updating an operation type of the first variable; so that the first variable has no differential result or a result is zero after encountering a differential operation; separately processing the first expression and the second expression according to the updated operation type of the first variable, to obtain a corresponding derivative function expression; and; combining, based on a chain rule, derivative function expressions respectively corresponding to the first expression and the second expression, to obtain a compilation result of the program.Type: ApplicationFiled: December 29, 2023Publication date: July 11, 2024Inventors: Dan GHICA, Le TU, Mario ALVAREZ-PICALLO, Lijuan HAI
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Publication number: 20240134618Abstract: A program compilation method and apparatus operate by: obtaining a first expression and a second expression of a program, where the first expression and the second expression generate a dependency relationship based on a first variable, and operation types of the first variable in the first expression and the second expression are different, and updating an operation type of the first variable; so that the first variable has no differential result or a result is zero after encountering a differential operation; separately processing the first expression and the second expression according to the updated operation type of the first variable, to obtain a corresponding derivative function expression; and; combining, based on a chain rule, derivative function expressions respectively corresponding to the first expression and the second expression, to obtain a compilation result of the program.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Inventors: Dan GHICA, Le TU, Mario ALVAREZ-PICALLO, Lijuan HAI
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Patent number: 8789352Abstract: A compact metal cable having two layers (C1, C2) of construction 1+N, rubberized in situ, usable in particular as a reinforcing element for a tire belt for a heavy industrial vehicle, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and a saturated outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1. The layered cable has the following characteristics (d1, d2, p2 in mm): 0.15<d1<0.50; 0.15<d2<0.50; 8<p2<25. The core wire is surrounded by a sheath of diene rubber which fills, at least in part, the gaps between the core wire and the cords of the layer C2.Type: GrantFiled: June 4, 2012Date of Patent: July 29, 2014Assignee: Michelin Recherche et Technique S.A.Inventors: Henri Barguet, Brigitte Chauvin, Alain Domingo, Le Tu Ahn Vo
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Patent number: 8627252Abstract: A system and method for selectively replacing standard threshold voltage devices with low threshold voltage devices in a digital logic design. The system identifies at least one path having a first timing value, the path having a plurality of standard threshold devices. The path is reverse traversed, or otherwise analyzed or traversed, to identify at least one of the standard threshold devices to possibly replace with a corresponding low threshold device. The system also determines a timing value for the path associated with replacing the at least one standard threshold device with the corresponding low threshold device. Depending the analysis, the standard threshold device may be replaced with a low threshold device, such as when the path timing improves by replacement. Such replacement may be used in various paths, such as paths considered critical paths in a digital logic design.Type: GrantFiled: September 18, 2008Date of Patent: January 7, 2014Assignee: Oracle America, Inc.Inventor: Le Tu Quach
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Publication number: 20120298276Abstract: A compact metal cable having two layers (C1, C2) of construction 1+N, rubberized in situ, usable in particular as a reinforcing element for a tire belt for a heavy industrial vehicle, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and a saturated outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1. The layered cable has the following characteristics (d1, d2, p2 in mm): 0.15<d1<0.50; 0.15<d2<0.50; 8<p2<25. The core wire is surrounded by a sheath of diene rubber which fills, at least in part, the gaps between the core wire and the cords of the layer C2.Type: ApplicationFiled: June 4, 2012Publication date: November 29, 2012Applicant: Michelin Recherche et Technique S.A.Inventors: Henri BARGUET, Brigitte Chauvin, Alain Domingo, Le, Tu Anh Vo
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Patent number: 8191348Abstract: A compact metal cable having two layers (C1, C2) of construction 1+N, rubberized in situ, usable in particular as a reinforcing element for a tire belt for a heavy industrial vehicle, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and a saturated outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1. The layered cable has the following characteristics (d1, d2, p2 in mm): 0.15<d1<0.50; 0.15<d2<0.50; 8<p2<25. The core wire is surrounded by a sheath of diene rubber which fills, at least in part, the gaps between the core wire and the cords of the layer C2.Type: GrantFiled: August 1, 2005Date of Patent: June 5, 2012Assignee: Michelin Recherche et Technique S.A.Inventors: Henri Barguet, Brigitte Chauvin, Alain Domingo, Le Tu Anh Vo
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Publication number: 20100070933Abstract: A system and method for selectively replacing standard threshold voltage devices with low threshold voltage devices in a digital logic design. The system identifies at least one path having a first timing value, the path having a plurality of standard threshold devices. The path is reverse traversed, or otherwise analyzed or traversed, to identify at least one of the standard threshold devices to possibly replace with a corresponding low threshold device. The system also determines a timing value for the path associated with replacing the at least one standard threshold device with the corresponding low threshold device. Depending the analysis, the standard threshold device may be replaced with a low threshold device, such as when the path timing improves by replacement. Such replacement may be used in various paths, such as paths considered critical paths in a digital logic design.Type: ApplicationFiled: September 18, 2008Publication date: March 18, 2010Applicant: Sun Microsystems, Inc.Inventor: Le Tu Quach
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Patent number: 7594380Abstract: A hybrid layered cable for use in tire reinforcement includes a non-metallic internal layer and an unsaturated external layer including 3-12 strands. Each strand is at least partly metallic and is helically wound around the internal layer. Each strand includes at least 3 filaments wound helically together. The cable has a relative elongation at break, measured in tension in accordance with the standard ISO 6892 of 1984, which is higher than 7%.Type: GrantFiled: December 27, 2004Date of Patent: September 29, 2009Assignee: Michelin Recherche et Technique S.A.Inventors: Henri Barguet, Le Tu Anh Vo, Thibaud Pottier, Laurence Ducourant
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Publication number: 20090101266Abstract: A compact metal cable having two layers (C1, C2) of construction 1+N, rubberized in situ, usable in particular as a reinforcing element for a tire belt for a heavy industrial vehicle, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and a saturated outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1, said layered cable being characterized: in that it has the following characteristics (d1, d2, p2 in mm): 0.15<d1<0.50; 0.15<d2<0.50; 8<p2<25; and in that the core wire is surrounded by a sheath of diene rubber which fills, at least in part, the gaps between the core wire and the cords of the layer C2.Type: ApplicationFiled: August 1, 2005Publication date: April 23, 2009Inventors: Henri Barguet, Brigitte Chauvin, Alain Domingo, Le, Tu, Anh Vo
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Patent number: 7405010Abstract: A metallic body of carbon steel covered with an adhesive layer capable of adhering to a rubber matrix based on diene elastomer. The carbon content of the steel is between 0.35 and 1.2% by weight. The adhesive layer is formed of a metallic layer bearing aluminum oxides or hydroxides, which itself is covered with an organosilane film which is at least bifunctional, capable of ensuring, as coupling agent, the bond between the aluminum oxides or hydroxides on one hand, and the rubber matrix on the other hand.Type: GrantFiled: March 1, 2006Date of Patent: July 29, 2008Assignee: Michelin Recherche et Technique S.A.Inventors: Bruno Grimberg, Yves Ravoire, Jean-Claude Tardivat, Le Tu Anh Vo
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Patent number: 7380579Abstract: The present invention relates to a metal cable usable for reinforcing a carcass reinforcement for a tire, such as a heavy-vehicle tire, to a composite fabric usable as a ply for such a carcass reinforcement, to a carcass reinforcement comprising this fabric and to a tire incorporating this carcass reinforcement. A metal cable according to the invention comprises a textile wrap, and is such that said wrap is formed of an aromatic thermotropic polyester or polyester amide. A composite fabric according to the invention is such that it comprises a rubber composition which is reinforced by said cables. A tire according to the invention has its carcass reinforcement comprising said composite fabric.Type: GrantFiled: May 21, 2004Date of Patent: June 3, 2008Assignee: Michelin Recherche et Technique S.A.Inventors: Philippe Esnault, Le Tu Anh Vo
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Patent number: 7066228Abstract: A (metal/rubber) composite comprising a rubber matrix reinforced with a metallic body adhering to the rubber matrix by means of an adhesive interphase; the rubber matrix is based on diene elastomer; the metal is a carbon steel, the carbon content of which is between 0.35% and 1.2%; to constitute the adhesive interphase, the carbon steel is coated with a metallic layer bearing aluminium oxides or hydroxides, which itself is covered by an organosilane film providing, as coupling agent, the bond between the aluminium oxides-hydroxides on one hand, and the rubber matrix on the other hand. The invention also relates to articles or semi-finished products made of rubber which are reinforced with or formed by such a composite, in particular tires.Type: GrantFiled: January 28, 2003Date of Patent: June 27, 2006Assignee: Michelin Recherche et Technique S.A.Inventors: Bruno Grimberg, Yves Ravoire, Jean-Claude Tardivat, Le Tu Anh Vo
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Patent number: 6837289Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a tire carcass reinforcement, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (M=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm): 0.08<d0<0.28;??(i) 0.15<d1<0.28;??(ii) 0.12<d2<0.25;??(iii) for M=4: 0.40 <(d0/d1)<0.80;??(iv) for M=5: 0.70<(d0/d1)<1.10; 4.8?(d0+d1)<p1<p2<5.6?(d0+2d1+d2);??(v) the wires of layers C1 and C2 are wound in the same direction of twist.Type: GrantFiled: June 24, 2002Date of Patent: January 4, 2005Assignee: Michelin Recherche et Technique, S.A.Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet, Le Tu Anh Vo
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Publication number: 20040108038Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a tire carcass reinforcement, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (M=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm):Type: ApplicationFiled: June 24, 2002Publication date: June 10, 2004Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet, Le Tu Anh Vo
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Publication number: 20030221760Abstract: A (metal/rubber) composite comprising a rubber matrix reinforced with a metallic body adhering to the rubber matrix by means of an adhesive interphase; the rubber matrix is based on diene elastomer; the metal is a carbon steel, the carbon content of which is between 0.35% and 1.2%; to constitute the adhesive interphase, the carbon steel is coated with a metallic layer bearing aluminium oxides or hydroxides, which itself is covered by an organosilane film providing, as coupling agent, the bond between the aluminium oxides-hydroxides on one hand, and the rubber matrix on the other hand. The invention also relates to articles or semi-finished products made of rubber which are reinforced with or formed by such a composite, in particular tires.Type: ApplicationFiled: January 28, 2003Publication date: December 4, 2003Inventors: Bruno Grimberg, Yves Ravoire, Jean-Claude Tardivat, Le Tu Anh Vo