Patents by Inventor Jiao Zhang
Jiao 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).
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Publication number: 20110289908Abstract: A hydraulic system for a machine is disclosed. The hydraulic system may have a first pump with variable displacement and being load-sense controlled, and a first hydraulic circuit associated with the first pump. The hydraulic system may also have a second pump with variable displacement and being electro-hydraulically controlled, and a second hydraulic circuit associated with the second pump. The hydraulic system may further have a flow-sharing valve arrangement configured to selectively share fluid flow between the first and second hydraulic circuits.Type: ApplicationFiled: May 28, 2010Publication date: December 1, 2011Inventors: Bryan A. JOHNSON, Jason L. Brinkman, Lawrence J. Tognetti, Chris R. Cesur, Peter Spring, Jiao Zhang
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Patent number: 8059897Abstract: A method (400) for automatically performing a plurality of image processing functions on an electronic device (100) by providing a plurality of image processing option keys (405) including a first image processing option key and a second image processing option key. The first image processing option key is associated with a first image processing function and the second image processing option key is associated with a second image processing function that is different from the first image processing function. The method (400) performs capturing (410) a first image using a camera (119) in response to a user activation of the first image processing option key and then automatically performing (415) the first image processing function in response to capturing the first image.Type: GrantFiled: December 10, 2007Date of Patent: November 15, 2011Assignee: Motorola Mobility, Inc.Inventors: Xiang Xu, Qi Xiang Li, Zhao Hui Li, Ke Jiao Zhang
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Patent number: 7997117Abstract: A method of calibrating an electrically controlled hydraulic valve having a known relationship between flow rate through the valve and displacement of a valve element is disclosed. The method includes ascertaining a first current level for actuating the electrically controlled hydraulic valve to move the valve element to a position adjacent an inlet port, and a first displacement of the valve element responsive to the first current level. The method also includes ascertaining a second current level for actuating the electrically controlled hydraulic valve to move the valve element from the position adjacent the inlet port to a position permitting flow through the inlet port, and ascertaining a second displacement of the valve element responsive to the second current level. The method further includes establishing a relationship between current and displacement associated with the electrically controlled hydraulic valve.Type: GrantFiled: May 12, 2008Date of Patent: August 16, 2011Assignee: Caterpillar Inc.Inventors: Jiao Zhang, Benjamin Yoo, Aleksandar M. Egelja, Tonglin Shang, Matthew James Beschorner
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Patent number: 7908852Abstract: This disclosure relates to a hydraulic system and method that converts the kinetic energy generated by the operation of a swing motor into hydraulic potential energy and reuses the hydraulic potential energy for swing motor acceleration. An accumulator can be provided for storing exit oil from the swing motor that is pressurized by the inertia torque applied on the moving motor via movement of an upper structure of a machine. The pressurized oil in the accumulator can be reused to accelerate the swing motor by supplying pressurized oil to the swing motor.Type: GrantFiled: February 28, 2008Date of Patent: March 22, 2011Assignees: Caterpillar Inc., Caterpillar S.A.R.L.Inventors: Jiao Zhang, Pengfei Ma, Michael R. Schwab, Tonglin Shang, Kalpesh N. Patel
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Publication number: 20100026149Abstract: A staggered embedded type casing is provided. The staggered embedded type casing includes a first casing and a second casing combine together to form a casing body. The first casing has a first surface and a first side. The second casing has a second surface and a second side. The first surface and the second surface are coplanar. A plurality of first embedded portions protrudes from the first side of the first casing and extends to the bottom of the second surface. A plurality of second embedded portions protrudes from the second side of the second casing and extends to the bottom of the first surface. The first embedded portions and the second embedded portions are staggered.Type: ApplicationFiled: March 4, 2009Publication date: February 4, 2010Applicant: INVENTEC CORPORATIONInventors: Gui-jiao Zhang, Shou-Jen Yang
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Publication number: 20100026148Abstract: A server chassis is provided. The server chassis includes a chassis body, a hard disk cage and a top cover. The upper surface of the hard disk cage is fixed on the hard disk cage such that the upper surface of the hard disk cage and the hard disk cage would form an integral whole. The hard disk cage could be removably assembled on the chassis body, so as to conveniently change the hard disks with different sizes therebetween. Therefore, the top cover of the present invention would fully cover the rear portion of the upper surface of the hard disk cage without changing the size or adding another cover, so as to achieve the purpose of integral whole assembling.Type: ApplicationFiled: March 4, 2009Publication date: February 4, 2010Applicant: INVENTEC CORPORATIONInventors: Gui-jiao Zhang, Shou-Jen Yang
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Publication number: 20100025017Abstract: A fan module including a fan frame, at least one fan unit, and a plurality of resilient pins is provided. The fan frame is provided with an accommodation space therein and is disposed with a plurality of mounting slots thereon. The fan unit is disposed in the accommodation space and has a base, in which the base has a plurality of mounting holes corresponding to the mounting slots. Each resilient pin has an insert end and a catch end. The insert end is penetrated through the corresponding mounting hole and the catch end is caught in the corresponding mounting slot, such that the fan unit is mounted to the fan frame by the resilient pins. Since the resilient pins are used to replace conventional screws in the present invention, the fan module is enabled to have a better damping effect, thereby meeting requirements for low-noise operation.Type: ApplicationFiled: November 18, 2008Publication date: February 4, 2010Applicant: INVENTEC CORPORATIONInventors: Gul-jiao Zhang, Shou-Jen Yang
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Publication number: 20090277243Abstract: A method of calibrating an electrically controlled hydraulic valve having a known relationship between flow rate through the valve and displacement of a valve element is disclosed. The method includes ascertaining a first current level for actuating the electrically controlled hydraulic valve to move the valve element to a position adjacent an inlet port, and a first displacement of the valve element responsive to the first current level. The method also includes ascertaining a second current level for actuating the electrically controlled hydraulic valve to move the valve element from the position adjacent the inlet port to a position permitting flow through the inlet port, and ascertaining a second displacement of the valve element responsive to the second current level. The method further includes establishing a relationship between current and displacement associated with the electrically controlled hydraulic valve.Type: ApplicationFiled: May 12, 2008Publication date: November 12, 2009Inventors: Jiao Zhang, Benjamin Yoo, Aleksandar M. Egelja, Tonglin Shang, Matthew James Beschorner
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Publication number: 20090217653Abstract: This disclosure relates to a hydraulic system and method that converts the kinetic energy generated by the operation of a swing motor into hydraulic potential energy and reuses the hydraulic potential energy for swing motor acceleration. An accumulator can be provided for storing exit oil from the swing motor that is pressurized by the inertia torque applied on the moving motor via movement of an upper structure of a machine. The pressurized oil in the accumulator can be reused to accelerate the swing motor by supplying pressurized oil to the swing motor.Type: ApplicationFiled: February 28, 2008Publication date: September 3, 2009Applicants: CATERPILLAR INC., SHIN CATERPILLAR MITSUBISHI LTD.Inventors: Jiao Zhang, Pengfei Ma, Michael R. Schwab, Tonglin Shang, Kalpesh N. Patel
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Publication number: 20090148074Abstract: A method (400) for automatically performing a plurality of image processing functions on an electronic device (100) by providing a plurality of image processing option keys (405) including a first image processing option key and a second image processing option key. The first image processing option key is associated with a first image processing function and the second image processing option key is associated with a second image processing function that is different from the first image processing function. The method (400) performs capturing (410) a first image using a camera (119) in response to a user activation of the first image processing option key and then automatically performing (415) the first image processing function in response to capturing the first image.Type: ApplicationFiled: December 10, 2007Publication date: June 11, 2009Applicant: MOTOROLA, INC.Inventors: XIANG XU, QI XIANG LI, ZHAO HUI LI, KE JIAO ZHANG
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Publication number: 20080275628Abstract: A method and apparatus for communicating traffic information, that in certain embodiments performs the actions of associating (215) with a traffic group that corresponds to a traffic region, determining (220) at least one traffic related parameter of the mobile communication device while operating within the traffic region, and transmitting (235) to the traffic group a transmit traffic information message that includes the at least one traffic related parameter. In certain embodiments, the following actions are performed: receiving (225) one or more receive traffic information messages from mobile communication devices associated with the traffic group, wherein each receive traffic information message includes at least one traffic related parameter and preparing (240) a local traffic report using the receive traffic information messages.Type: ApplicationFiled: May 2, 2007Publication date: November 6, 2008Applicant: MOTOROLA, INC.Inventors: Xiang Xu, Qi-Xiang Li, Zhao-Hui Li, Ke-Jiao Zhang
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Patent number: 7302797Abstract: A hydraulic system for a work machine is disclosed. The hydraulic system has a reservoir configured to hold a supply of fluid and a source configured to pressurize the fluid. The hydraulic system also has a fluid actuator, a first valve, and a second valve. The first valve is configured to selectively fluidly communicate the source with the fluid actuator to facilitate movement of the fluid actuator in a first direction. The second valve is configured to selectively fluidly communicate the fluid actuator with the reservoir to facilitate movement of the fluid actuator in the first direction. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the fluid actuator and the reservoir.Type: GrantFiled: May 31, 2005Date of Patent: December 4, 2007Assignees: Caterpillar Inc., Shin Caterpillar Mitsubishi LtdInventors: Jiao Zhang, Pengfei Ma, Michael R. Schwab
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Patent number: 7269944Abstract: A hydraulic system may include a hydraulic actuator. The hydraulic system may also include a pump having a pump inlet and a pump outlet, and the pump may be configured to supply fluid to the hydraulic actuator. The hydraulic system may further include an energy recovery system operatively connected between the hydraulic actuator and the pump. The energy recovery system may be configured to store fluid from the hydraulic actuator under an overrunning load condition, and the stored fluid may be directed through the pump inlet and into the hydraulic actuator.Type: GrantFiled: September 30, 2005Date of Patent: September 18, 2007Assignees: Caterpillar Inc., Shin Caterpillar Mitsubishi Ltd.Inventors: Jiao Zhang, Pengfei Ma, Michael Schwab, Kalpesh N. Patel, Tonglin Shang
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Patent number: 7251935Abstract: A hydraulic control system has an actuator with first and second chambers, first and second valves having elements movable to fill and drain the first and second chambers, and at least one sensor configured to generate a load signal indicative of a load on the fluid actuator. The system has an interface device movable to generate a desired velocity signal of the actuator. The system has a controller in communication with the first and second valves, the at least one sensor, and the interface device. The controller is configured to move the element of the first valve to a position based on the desired velocity signal and to move the element of the second valve to a position based on the load signal and a desired pressure within the second chamber.Type: GrantFiled: August 31, 2005Date of Patent: August 7, 2007Assignees: Caterpillar Inc, Shin Caterpillar Mitsubishi LtdInventors: Jiao Zhang, Pengfei Ma, Aleksandar Egelja, Michael T. Verkuilen
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Patent number: 7243493Abstract: A valve is provided for a hydraulic system having a source of pressurized fluid, a fluid actuator, and a proportional pressure compensating valve. The valve has a bore in fluid communication with the source and the fluid actuator. The valve also has a valve element disposed in the bore and movable between a flow blocking position and a flow passing position to selectively fluidly communicate the source with the fluid actuator. The valve also has a valve signal passageway disposed within the valve element and configured to be in fluid communication with a pressurized fluid having a signal pressure indicative of pressure supplied to the fluid actuator. The valve further has first and second orifices disposed within the valve element in fluid communication with the valve signal passageway and the bore. The valve signal passageway is configured to communicate the signal pressure with the first and second orifices.Type: GrantFiled: April 29, 2005Date of Patent: July 17, 2007Assignees: Caterpillar Inc, Shin Caterpillar Mitsubishi LtdInventors: Pengfei Ma, Jiao Zhang, Jeff L. Kuehn, Kalpesh N. Patel
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Patent number: 7204185Abstract: A hydraulic system having a source of pressurized fluid and a fluid actuator with a first chamber and a second chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber and a second valve configured to selectively fluidly communicate the source with the second chamber. The hydraulic system also has a supply passageway and a signal passageway each disposed between the first and second valves in parallel. The hydraulic system also has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first and second valves. The hydraulic system further has a fluid passageway disposed between the supply and signal passageways to fluidly communicate the supply and signal passageways.Type: GrantFiled: April 29, 2005Date of Patent: April 17, 2007Assignees: Caterpillar Inc, Shin Caterpillar Mitsubishi LtdInventors: Pengfei Ma, Gene Richard St. Germain, Jiao Zhang, Aleksandar M. Egelja, Robert Scot Lehmann, Michael A. Sorokine
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Patent number: 7204084Abstract: A hydraulic system for a work machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber and a second chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber and a second valve configured to selectively fluidly communicate the source with the second chamber. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first and second valves.Type: GrantFiled: October 29, 2004Date of Patent: April 17, 2007Assignees: Caterpillar Inc, Shin Caterpillar Mitsubishi Ltd.Inventors: Pengfei Ma, Jiao Zhang
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Publication number: 20070074509Abstract: A hydraulic system may include a hydraulic actuator. The hydraulic system may also include a pump having a pump inlet and a pump outlet, and the pump may be configured to supply fluid to the hydraulic actuator. The hydraulic system may further include an energy recovery system operatively connected between the hydraulic actuator and the pump. The energy recovery system may be configured to store fluid from the hydraulic actuator under an overrunning load condition, and the stored fluid may be directed through the pump inlet and into the hydraulic actuator.Type: ApplicationFiled: September 30, 2005Publication date: April 5, 2007Inventors: Jiao Zhang, Pengfei Ma, Michael Schwab, Kalpesh Patel, Tonglin Shang
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Patent number: D576628Type: GrantFiled: October 10, 2007Date of Patent: September 9, 2008Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Jiao Zhang, Chun-Chi Liang, Jiing-Renn Yu, Peng Zhou, Chang-Sheng Zhou, Meng Zhang
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Patent number: D609710Type: GrantFiled: October 12, 2007Date of Patent: February 9, 2010Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Jiao Zhang, Chun-Chi Liang, Jiing-Renn Yu, Yun-Dong Xu, Peng Zhou