Patents by Inventor Min Dai
Min Dai 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: 20130020971Abstract: Methods and apparatus are provided for rotor and stator temperature compensation for field weakening current. The method comprises generating a phase voltage feed back signal Vph based in part on pre-defined optimal current commands (ID* and IQ*) received by the IPM, generating a phase voltage command (Vphcmd) based in part on a temperature of a magnetic rotor and stator of the IPM, and generating a phase voltage error (Verror) by subtracting the phase voltage feed back signal (Vph) from the phase voltage command (Vphcmd). The method further comprises generating a d-axis command current correction value (?Id) and a q-axis command current correction value (?Iq) from the phase voltage error (Verror); and adjusting the pre-defined optimal current commands (ID* and IQ*) by the d-axis and the q-axis command current correction values (?Id and ?Iq).Type: ApplicationFiled: July 22, 2011Publication date: January 24, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: GABRIEL GALLEGOS-LOPEZ, MIN DAI, BRIAN A. WELCHKO
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Publication number: 20120329230Abstract: A method of fabricating a silicon-containing oxide layer that includes providing a chemical oxide layer on a surface of a semiconductor substrate, removing the chemical oxide layer in an oxygen-free environment at a temperature of 1000° C. or greater to provide a bare surface of the semiconductor substrate, and introducing an oxygen-containing gas at a flow rate to the bare surface of the semiconductor substrate for a first time period at the temperature of 1000° C. The temperature is then reduced to room temperature during a second time period while maintaining the flow rate of the oxygen containing gas to provide a silicon-containing oxide layer having a thickness ranging from 0.5 ? to 10 ?.Type: ApplicationFiled: June 21, 2011Publication date: December 27, 2012Applicants: GLOBALFOUNDRIES INC., INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Michael P. Chudzik, Min Dai, Joseph F. Shepard, JR., Shahab Siddiqui, Jinping Liu
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Publication number: 20120280370Abstract: A method of forming a dielectric stack devoid of an interfacial layer includes subjecting an exposed interfacial layer provided on a semiconductor material to a low pressure thermal anneal process for a predetermined time period at a temperature of about 900° C. to about 1000° C. with an inert gas purge. A semiconductor structure is also disclosed, with a dielectric stack devoid of an interfacial layer.Type: ApplicationFiled: May 2, 2011Publication date: November 8, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Michael P. CHUDZIK, Min DAI
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Patent number: 8294413Abstract: A control system is provided for an inverter assembly associated with an induction motor. The system includes a current determination module configured to generate q- and d-axis current commands based on a torque command. The current determination module is further configured to generate the q-axis current command based on an observed flux linkage and a flux linkage command. The system further includes a motor current control module coupled to the current determination module and configured to generate q- and d-axis voltage commands based on the q- and d-axis current commands generated by the current determination module and a PWM modulator coupled to the motor current control module configured to generate duty cycle signals for operating the inverter assembly based on the q- and d-axis voltage commands generated by the motor current control module.Type: GrantFiled: January 5, 2010Date of Patent: October 23, 2012Assignee: GM Global Technology Operations LLCInventors: Min Dai, Bon Ho Bae, Leah Dunbar
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Publication number: 20120168193Abstract: A method for vertically grounding and leading down form an outer side of a composite pole tower and pole tower thereof, wherein the method includes the following steps: extending an upper metal cross arm from an extended line of at least one side of a ground wire cross arm, vertically leading down a ground down-leading wire from a distal end of the upper metal cross arm, connecting the ground down-leading wire to the pole tower via a lower metal cross arm at a distance under a lower lead, and grounding the ground down-leading wire along a tower body of the pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is selectively directly connected to the metal pipe via the lower metal cross arm.Type: ApplicationFiled: May 5, 2010Publication date: July 5, 2012Applicant: STATE GRID ELECTRIC POWER RESEARCH INSTITUTEInventors: Hanming LI, Zhijun LI, Qianhu Wei, Ting Liu, Shicong Deng, Feng Huo, Ming Zhan, Min Dai, Weicai Zhou, Kai Liu, Yuhua Zhang, Xiong Wu, Ning Cao, Dingxie Gu, Peihong Zhou, Huiwen He, Ying Lou, Zhenqiang Li
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Publication number: 20120168192Abstract: A method for vertically grounding and leading down form a center of a composite pole tower includes the following steps: extending a ground down-leading wire from a center of a ground wire cross arm which is made of metal and is positioned on top of the pole tower, wherein the ground down-leading wire is vertically leaded down to the earth form the center of the composite pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is extended from the center of the composite material and is directly connected to the metal pipe. The method utilizes the advantage of the insulating intensity of the wall of the composite pole tower and enhances the insulating intensity of the transmission line on impact of lightning. The ground down-leading wires are prevented from short-circuiting with the tower body of the composite pole tower, so that advantage of the insulating property of the composite material of the pole towers is realized.Type: ApplicationFiled: May 5, 2010Publication date: July 5, 2012Applicant: STATE GRID ELECTRIC POWER RESEARCH INSTITUTEInventors: Zhusen Sun, Qiang Zhang, Minghua Li, Zhijun Li, Ting Liu, Feng Huo, Min Dai, Kai Liu, Xiong Wu, Dingxie Gu, Peihong Zhou, Ying Lou, Zhenqiang Li, Huiwen He
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Patent number: 8177896Abstract: A novel chemical genus of furan-2-one antifouling compound as non-toxic, environment friendly antifouling agent, a coating material for objects submerged under the water based on the furan-2-one compounds. The substituted furan-2-one antifouling compounds have a furan-2-one ring and an alkyl side chain thereto and are of the formula: where n=6-14, representing the number of carbon atoms in said side chain.Type: GrantFiled: April 16, 2009Date of Patent: May 15, 2012Assignee: The Hong Kong University of Science and TechnologyInventors: Peiyuan Qian, Ying Xu, Xiaojian Zhou, Hongping He, Nobuhiro Fusetani, Wei-Min Dai
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Publication number: 20120056911Abstract: The techniques of this disclosure are applicable to backlight display devices. For such devices, the backlight may have different backlight intensity settings in order to promote power conservation. The techniques of this disclosure may apply different adjustments to the display, depending on the backlight intensity setting. In one example, different color correction matrices may be applied for different backlight settings in order to achieve desirable adjustments in the device at the different backlight settings. The adjustments described herein may address chrominance shifts due to different backlight settings as well as cross-talk between color channels. The techniques may also be applicable to organic light emitting diode (OLED) displays that have different luminance settings, and some described techniques may be applicable to displays that have static or fixed luminance output.Type: ApplicationFiled: August 26, 2011Publication date: March 8, 2012Applicant: QUALCOMM INCORPORATEDInventors: Reza Safaee-Rad, Min Dai, Milivoje Aleksic
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Publication number: 20120053881Abstract: Methods and systems are provided for assessing a vehicle transmission having a resolver. A memory is configured to store preliminary data pertaining to an error of the resolver. A processor is coupled to the memory, and is configured to determine a harmonic characteristic of the preliminary data, and to assess the vehicle transmission using the harmonic characteristic.Type: ApplicationFiled: August 24, 2010Publication date: March 1, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Steven E. SCHULZ, Bon Ho BAE, Silva HITI, Min DAI, Harry J. BAUER, Samuel J. HARBIN
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Publication number: 20110307561Abstract: Embodiments provide bandwidth efficient mechanisms for delivering rich media content, such as webpages, to receiver devices via a multimedia broadcast network. Content, such as selected webpages, is broadcast as disassembled content elements via the broadcast network. To enable reception, the disassembled content elements are broadcast according to a broadcast schedule that is communicated in an overhead content description flow, such as a catalog file. Receiver devices receive the catalog file and use the metadata information to selectively receive disassembled content and store the content elements in memory. When a user requests access to the content (e.g., a webpage via a web browser), an application operating in the receiver device assembles the requested content from the previously received and stored disassembled content elements, and passes the assembled webpage to a using or rendering application.Type: ApplicationFiled: June 14, 2010Publication date: December 15, 2011Applicant: QUALCOMM IncorporatedInventors: QIANG GAO, Min Dai, Qi Xue
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Publication number: 20110185944Abstract: A novel chemical genus of furan-2-one antifouling compound as non-toxic, environment friendly antifouling agent, a coating material for objects submerged under the water based on the furan-2-one compounds. The substituted furan-2-one antifouling compounds have a furan-2-one ring and an alkyl side chain thereto and are of the formula: where n=6-14, representing the number of carbon atoms in said side chain.Type: ApplicationFiled: April 16, 2009Publication date: August 4, 2011Inventors: Peiyuan Qian, Ying Xu, Xiaojian Zhou, Hongping He, Nobuhiro Fusetani, Wei-Min Dai
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Publication number: 20110163709Abstract: A control system is provided for an inverter assembly associated with an induction motor. The system includes a current determination module configured to generate q- and d-axis current commands based on a torque command. The current determination module is further configured to generate the q-axis current command based on an observed flux linkage and a flux linkage command. The system further includes a motor current control module coupled to the current determination module and configured to generate q- and d-axis voltage commands based on the q- and d-axis current commands generated by the current determination module and a PWM modulator coupled to the motor current control module configured to generate duty cycle signals for operating the inverter assembly based on the q- and d-axis voltage commands generated by the motor current control module.Type: ApplicationFiled: January 5, 2010Publication date: July 7, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: MIN DAI, BON HO BAE, LEAH DUNBAR
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Publication number: 20100080459Abstract: This disclosure describes techniques for performing content adaptive histogram enhancement. In accordance with the content adaptive histogram enhancement techniques of this disclosure, a frame of digital image data, e.g., digital video data or digital still image data, is classified into one of a plurality of content classes based on histogram of pixel intensity values of the frame. The content classes may represent various levels of brightness, contrast, or the like. To classify the frame into the corresponding content class, a shape of the histogram may be analyzed using various histogram statistics. Based on the content class of the frame, the pixel intensity values of the frame are mapped to new pixel intensity values.Type: ApplicationFiled: September 26, 2008Publication date: April 1, 2010Applicant: QUALCOMM IncorporatedInventors: Min Dai, Chia-Yuan Teng, King-Chuang Lai
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Publication number: 20100027663Abstract: This disclosure provides intelligent frame skipping techniques that may be used by an encoding device or a decoding device to facilitate frame skipping in a manner that may help to minimize quality degradation due to the frame skipping. In particular, the described techniques may implement a similarity metric designed to identify good candidate frames for frame skipping. In this manner, noticeable reductions in the video quality caused by frame skipping, as perceived by a viewer of the video sequence, may be reduced relative to conventional frame skipping techniques. The described techniques advantageously operate in a compressed domain.Type: ApplicationFiled: October 9, 2008Publication date: February 4, 2010Applicant: QUALCOMM IncorporatedInventors: Min Dai, Tao Xue, Chia-Yuan Teng
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Publication number: 20090213938Abstract: A video decoder performs a sequential error handling process to detect and conceal errors within a corrupted data segment of video data units. The decoder sequentially decodes a current data unit. Upon detecting an error, the decoder sets an error flag and resynchronizes decoding at the start of the next unit. If the error flag is set, the video decoder identifies the end of the corrupted data segment based on the start of the later unit. The decoder conceals data between the start of the current unit and the end of the corrupted data segment. If the error flag is not set, the decoder may decode the remainder of the current unit and proceed to decode the next available unit without performing error handling and concealment for the current unit. The decoder also may address reference unit mismatches caused by lost video data units.Type: ApplicationFiled: July 10, 2008Publication date: August 27, 2009Applicant: QUALCOMM IncorporatedInventors: Yen-Chi Lee, Min Dai, Chia-Yuan Teng
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Publication number: 20090147854Abstract: Display of an interpolated or extrapolated video unit, such as a video frame, may be selectively enabled based on a quality analysis. This disclosure also describes selection of reference video frames to be used for interpolation or extrapolation. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements of the decoder.Type: ApplicationFiled: April 29, 2008Publication date: June 11, 2009Applicant: QUALCOMM IncorporatedInventors: Gokce Dane, Khaled Helmi El-Maleh, Min Dai, Chia-Yuan Teng
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Publication number: 20090148058Abstract: This disclosure describes selection of reference video units to be used for interpolation or extrapolation of a video unit, such as a video frame. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. Display of an interpolated or extrapolated frame may be selectively enabled based on a quality analysis. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements.Type: ApplicationFiled: April 29, 2008Publication date: June 11, 2009Applicant: QUALCOMM IncorporatedInventors: Gokce Dane, Khaled Helmi El-Maleh, Min Dai, Chia-Yuan Teng
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Publication number: 20090147853Abstract: A decoder may apply a resource-focused interpolation mode to enable or disable interpolation or extrapolation of video units, such as frames, based on power and quality considerations. In one mode, interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements. This disclosure also describes selection of reference video frames to be used for interpolation or extrapolation of a video frame. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. Display of an interpolated or extrapolated frame may be selectively enabled based on a quality analysis of the frame.Type: ApplicationFiled: April 29, 2008Publication date: June 11, 2009Applicant: QUALCOMM IncorporatedInventors: Gokce Dane, Min Dai, Khaled Helmi El-Maleh, Chia-Yuan Teng
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Publication number: 20080025390Abstract: In general, this disclosure is directed to decoding techniques for interpolating video frames. In particular, the techniques of this disclosure may be used to dynamically adjust a frame interpolation operation based on analysis of information associated with one or more video frames. In response to the analysis of the information associated with one or more frames, the interpolation control module adjusts the frame interpolation operation in number of different manners. For example, the interpolation control module may dynamically enable or disable motion compensated frame interpolation, select a different type of interpolation, select a video frame prediction mode to be used in the motion compensated frame interpolation, or select different threshold values for frame interpolation.Type: ApplicationFiled: January 4, 2007Publication date: January 31, 2008Inventors: Fang Shi, Vijayalakshmi R. Raveendran, Min Dai
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Patent number: 6391916Abstract: Novel C3-substituted cyclodeca-1,5-diynes can be prepared through novel synthetic procedures using starting (E)-C3-substituted-4-(aryl- or heteroarylmethylidene)cyclodeca-1,5-diynes reagents. Both the C3-substituted cyclodeca-1,5-diyn-3-enes and the starting reagents have improved thermal stability compared to unsubstituted counterparts.Type: GrantFiled: July 21, 2000Date of Patent: May 21, 2002Assignee: The Hong Kong University of Science and TechnologyInventors: Wei-Min Dai, Anxin Wu, Yuk Ha Lee, Wataru Hamaguchi, Sei-ichi Nishimoto, Ling Zhou, Atsushi Ishii