Patents by Inventor Dequan Yu
Dequan Yu 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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Publication number: 20250156712Abstract: This application discloses a model training method, including: obtaining training data; using the training data as an input of a model, and in a training process of the model, calculating a parameter by using a first precision range, to obtain a calculated value; and if the calculated value overflows the first precision range, recalculating the parameter by using a second precision range, and performing iterative training on the model for one or more times by using a recalculated parameter, where the second precision range includes the first precision range, or the second precision range partially overlaps the first precision range.Type: ApplicationFiled: January 14, 2025Publication date: May 15, 2025Inventors: Dequan YU, Yin ZHAO
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Publication number: 20250142079Abstract: Embodiments of this application provide an encoding and a device. The encoding method includes: obtaining an image; generating feature maps of C channels based on the image, the feature maps including feature values of feature points; generating estimated information matrices of the C channels based on the feature maps of the C channels; grouping the C channels into N channel groups; for at least one target channel group in the N channel groups, determining, based on at least one feature value of at least one encoded feature point corresponding to the target channel group and an estimated information matrix corresponding to the target channel group, at least one probability distribution parameter of a to-be-encoded feature point corresponding to the target channel group; determining, based on the at least one probability distribution parameter, probability distribution of the to-be-encoded feature point; and encoding the to-be-encoded feature point based on the probability distribution.Type: ApplicationFiled: January 6, 2025Publication date: May 1, 2025Inventors: Jue MAO, Dequan YU, Sheng QIAN, Yin ZHAO
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Patent number: 12229631Abstract: Methods and apparatuses for recognizing a two-dimensional code are disclosed. In an implementation, a method comprises: identifying, by an electronic device, a two-dimensional code, wherein the two-dimensional code comprises an image region in the center and a ring region surrounding the image region, wherein the ring region comprises a code region including a first code region and a second code region, a first spacing region, and a second spacing region, wherein the first spacing region and the second spacing region are arranged between the first code region and the second code region, determining values corresponding to a plurality of code elements in the code region, and recognizing, by the electronic device based on the values, first information corresponding to the two-dimensional code.Type: GrantFiled: January 21, 2022Date of Patent: February 18, 2025Assignee: Huawei Technologies Co., Ltd.Inventors: Haoren Wang, Dequan Yu, Yi Ren, Haosheng Gao, Chunliang Liu, Ping Song
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Publication number: 20240430432Abstract: When probability estimation is performed in encoding and decoding processes, probability distribution of an unquantized image feature is estimated based on a hyperprior feature of the unquantized image feature via a first probability distribution estimation network, and then probability distribution of a quantized image feature is obtained through quantization. Alternatively, probability distribution of a quantized image feature is directly estimated based on a hyperprior feature of an unquantized image feature via a second probability distribution estimation network.Type: ApplicationFiled: September 9, 2024Publication date: December 26, 2024Inventors: Jue Mao, Yin Zhao, Dequan Yu, Lian Zhang
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Patent number: 12118431Abstract: In a method, an electronic device obtains to-be-encoded text, where the to-be-encoded text includes N characters; the electronic device determines a target coding mode for each of the N characters from X optional coding modes; the electronic device groups the N characters into M character fields based on the target coding mode for each character, and determines a target coding mode for each of the M character fields, where M is less than or equal to N; the electronic device encodes the M character fields based on the target coding mode for each character field to obtain a first binary character string; and the electronic device generates, based on the first binary character string, a two-dimensional code of a version corresponding to a length of the first binary character string.Type: GrantFiled: October 27, 2023Date of Patent: October 15, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Haoren Wang, Dequan Yu, Haosheng Gao
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Publication number: 20240233335Abstract: A feature map processing method includes: determining P target strides based on a preset correspondence between a stride and a feature map size range and a size of a target feature map, where P is a positive integer; and invoking a neural network model to process the target feature map, to obtain a processing result of the target feature map, where the neural network model includes P dynamic stride modules, a stride of a dynamic stride module of the P dynamic stride modules is a target stride corresponding to a dynamic stride module in the P target strides.Type: ApplicationFiled: March 26, 2024Publication date: July 11, 2024Inventors: Dequan YU, Yin ZHAO, Haitao YANG
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Publication number: 20240062027Abstract: In a method, an electronic device obtains to-be-encoded text, where the to-be-encoded text includes N characters; the electronic device determines a target coding mode for each of the N characters from X optional coding modes; the electronic device groups the N characters into M character fields based on the target coding mode for each character, and determines a target coding mode for each of the M character fields, where M is less than or equal to N; the electronic device encodes the M character fields based on the target coding mode for each character field to obtain a first binary character string; and the electronic device generates, based on the first binary character string, a two-dimensional code of a version corresponding to a length of the first binary character string.Type: ApplicationFiled: October 27, 2023Publication date: February 22, 2024Inventors: Haoren Wang, Dequan Yu, Haosheng Gao
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Publication number: 20240046055Abstract: Methods and apparatuses for recognizing a two-dimensional code are disclosed. In an implementation, a method comprises: identifying, by an electronic device, a two-dimensional code, wherein the two-dimensional code comprises an image region in the center and a ring region surrounding the image region, wherein the ring region comprises a code region including a first code region and a second code region, a first spacing region, and a second spacing region, wherein the first spacing region and the second spacing region are arranged between the first code region and the second code region, determining values corresponding to a plurality of code elements in the code region, and recognizing, by the electronic device based on the values, first information corresponding to the two-dimensional code.Type: ApplicationFiled: January 21, 2022Publication date: February 8, 2024Inventors: Haoren WANG, Dequan YU, Yi REN, Haosheng GAO, Chunliang LIU, Ping SONG
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Patent number: 9464609Abstract: A fuel delivery system is provided to reduce the pressure pulsations and noise vibration and harshness of direct injection systems. The fuel delivery system includes an elastic fuel line positioned between a first fuel pump and a second fuel pump and a check valve positioned in the elastic fuel line near the inlet of the high pressure pump, the check valve including an external housing having a peripheral surface with a greater diameter than an unstretched inner diameter of the elastic fuel line.Type: GrantFiled: September 6, 2013Date of Patent: October 11, 2016Assignee: Ford Global Technologies, LLCInventors: Jacob Jensen, Dequan Yu, Dennis Morgan, Christopher Arnold Woodring
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Publication number: 20150068491Abstract: A fuel delivery system is provided to reduce the pressure pulsations and noise vibration and harshness of direct injection systems. The fuel delivery system includes an elastic fuel line positioned between a first fuel pump and a second fuel pump and a check valve positioned in the elastic fuel line near the inlet of the high pressure pump, the check valve including an external housing having a peripheral surface with a greater diameter than an unstretched inner diameter of the elastic fuel line.Type: ApplicationFiled: September 6, 2013Publication date: March 12, 2015Applicant: Ford Global Technologies, LLCInventors: Jacob Jensen, Dequan Yu, Dennis Morgan, Christopher Arnold Woodring
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Patent number: 8833343Abstract: A system and method for operating a fuel system that supplies fuel to a plurality of injectors in an internal combustion engine via a first pump and a second pump with a bypass circuit returning fuel from between the first and second pumps to a fuel tank, the pumps connected in series, is provided. The bypass circuit increases its restriction to increase injection pressure during selected conditions.Type: GrantFiled: October 12, 2007Date of Patent: September 16, 2014Assignee: Ford Global Technologies, LLCInventors: Ross Dykstra Pursifull, Dequan Yu
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Patent number: 8479709Abstract: A system of alternate hose line bundling allows for exclusion of a higher pressure hose line from fasteners directly attached to a vehicle body. Alternatively to mounting to the vehicle body, the higher pressure hose line is coupled to a lower pressure hose line via fasteners which lack mounting features. Eliminating attachment of higher pressure hose lines to the vehicle body reduces noise, vibration, and harshness (NVH) experienced by passengers in the vehicle.Type: GrantFiled: April 27, 2010Date of Patent: July 9, 2013Assignee: Ford Global Technologies, LLCInventors: Dequan Yu, Ram Alluri, Larry Castleberry, Carlos Armesto
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Publication number: 20110260011Abstract: A system of alternate hose line bundling allows for exclusion of a higher pressure hose line from fasteners directly attached to a vehicle body. Alternatively to mounting to the vehicle body, the higher pressure hose line is coupled to a lower pressure hose line via fasteners which lack mounting features. Eliminating attachment of higher pressure hose lines to the vehicle body reduces noise, vibration, and harshness (NVH) experienced by passengers in the vehicle.Type: ApplicationFiled: April 27, 2010Publication date: October 27, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Dequan Yu, Ram Alluri, Larry Castleberry, Carlos Armesto
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Patent number: 7632060Abstract: A fuel pump includes a housing, and a motor. An impeller has first and second impeller flow channels having a plurality of vanes positioned therein. The impeller defines a flow passageway extending through the impeller. A cover is attached to the housing and defines a cover flow channel. The cover flow channel receives fuel from an inlet formed in the cover. A first portion of the cover flow channel is aligned with the first impeller flow channel and a second portion of the cover flow channel is aligned with the second impeller flow channel. The cover flow channel extends around the cover more than 360 degrees. A body is positioned within the housing and defines an impeller chamber, sized to receive the impeller, and an outlet passageway is positioned to fluidically connect to the flow passageway of the impeller to receive higher pressure fuel for delivery to the engine.Type: GrantFiled: January 24, 2005Date of Patent: December 15, 2009Assignee: Ford Global Technologies, LLCInventor: DeQuan Yu
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Patent number: 7624720Abstract: A fuel pressure regulator is provided. The fuel pressure regulator includes a body forming an inlet and an outlet, a seal element positioned intermediate the inlet and the outlet, an armature positioned to apply force to the seal element, and a solenoid coiled around the armature, wherein excitation of the solenoid causes a change in at least one of a position of the armature relative to the seal element and a force applied by the armature to the seal element to vary a regulated fuel pressure set-point at which fuel flows through the outlet.Type: GrantFiled: August 1, 2008Date of Patent: December 1, 2009Assignee: Ford Global Technologies, LLCInventors: David M. Dokas, Robert Joseph Pyle, Dequan Yu
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Patent number: 7559315Abstract: A rotodynamic fuel pump in a fuel delivery system for an internal combustion engine including a pump housing, a pump inlet channel extending through the housing allowing fuel to be drawn into the pump, a purge orifice extending through the housing and spaced away from the pump inlet channel, the purge orifice allowing fuel vapor to exit the pump, the purge orifice including a purge inlet, a purge outlet, and a purge channel, where the purge inlet is axially offset from the purge outlet.Type: GrantFiled: February 11, 2008Date of Patent: July 14, 2009Assignee: Ford Global Technologies, LLCInventors: Dequan Yu, Sheven Sharp, Harold L. Castle, Stephen T. Kempfer, Robert Joseph Pyle
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Publication number: 20090095259Abstract: A method for operating fuel system that supplies fuel to a plurality of injectors in an internal combustion engine via a first pump and a second pump with a bypass circuit coupled between the first and second pump for returning fuel to a fuel tank, the pumps connected in series, is provided. The method includes before actuating fuel injectors during an engine start, operating the first pump, where fuel is driven through the bypass circuit that generates a fuel pressure that is delivered to the injectors that is greater than the fuel pressure delivered to the injectors during the moderate pressure mode of operation when the bypass regulator is maintaining a constant fuel line pressure. The method also includes during actuation of the fuel injectors after an engine start, operating the first and second pumps, where fuel pressure is regulated at a specified regulator pressure via bypass flow in the bypass.Type: ApplicationFiled: October 12, 2007Publication date: April 16, 2009Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Ross Dykstra Pursifull, Dequan Yu
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Patent number: 7387111Abstract: An in-tank fuel supply unit is provided for supplying fuel from a fuel tank to an engine. The fuel supply unit generally comprises a fuel delivery module and a jet pump assembly selectively attachable to the fuel delivery module. The fuel delivery module has a housing defining a reservoir and includes a fuel pump for pressurizing fuel in the reservoir. The jet pump assembly has a suction tube defining a suction chamber and a nozzle situated inside the suction chamber. The nozzle receives pressurized fuel from the fuel pump and sprays the fuel from a nozzle tip at high velocity to draw additional fuel into the suction chamber through an inlet formed in the suction tube.Type: GrantFiled: June 24, 2004Date of Patent: June 17, 2008Assignee: Ford Motor CompanyInventors: DeQuan Yu, David Zultowski, Vipin F. Patel, Jason Nicholas Schultz, Matthew Edward Wiethoff
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Patent number: 7302938Abstract: A mechanical returnless fuel system comprises a fuel pump having an output for supplying fuel to fuel injectors of an automotive engine. The fuel system includes a pressure regulating valve that returns a portion of the pump output in excess of engine fuel usage to the fuel supply. The pressure regulating valve results in a fuel pressure that varies as a function of engine fuel demand. During operation, a controller determines a projected engine fuel demand, then determines an estimated fuel pressure based upon the projected engine fuel demand. The controller utilizes the estimated fuel pressure to provide a more accurate calculation of the opening time for the fuel injectors and thereby improve engine control.Type: GrantFiled: October 16, 2003Date of Patent: December 4, 2007Assignee: Ford Motor CompanyInventors: DeQuan Yu, Stephen T. Kempfer
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Patent number: D1003319Type: GrantFiled: August 6, 2021Date of Patent: October 31, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chunliang Liu, Anqi Liu, Lubing Xie, Ping Song, Haoren Wang, Dequan Yu