Patents by Inventor Fei Ma
Fei Ma 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: 20140141202Abstract: A screen protection application film, includes a protection film (1) and a back adhesive layer (2), a backing paper (3), in which the back side of the protection film (1) include a screen protection area (11) and a panel protection area (12), the front side of the back adhesive layer (2) is bonded to the back side of the protection film (1), the front side of the backing paper (3) connects with the back side of the protection film (1) through the back adhesive layer (2), the extending plane of the back adhesive layer (2) is only limited to the panel protection area (12), the protection film (1) extends toward the back side direction to form multiple convex parts (10) and there is a gap (9) between the screen protection area (11) and the back paper (3).Type: ApplicationFiled: December 9, 2012Publication date: May 22, 2014Applicant: Shanghai BENPU Technology Development Co., LtdInventor: Fei Ma
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Publication number: 20120260109Abstract: A power management integrated circuit incorporates (a) a microprocessor; (b) a non-volatile memory accessible by the microprocessor for storing programs executable by the microprocessor; (c) a random access memory accessible by the microprocessor; (d) an external interface which allows an external device to communicate with the power management integrated circuit; and (e) power regulators providing regulated output voltages from the power management integrated circuit, each power regulator being controllable by the microprocessor and the external interface over the register-controlled bus. A second external interface may be provided, which is used to provide a configuration file descriptive of power requirements of a system in which the power management integrated circuit is deployed. Such a system may include a system-on-a-chip (SOC) integrated circuit.Type: ApplicationFiled: April 6, 2011Publication date: October 11, 2012Inventors: Shubing Zhai, Hanbing Jiang, Fei Ma
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Patent number: 8272376Abstract: A gas cooker control system includes an ignition controller including a touch button, a resistor, a first comparator, a second comparator and a third comparator, one end of the touch button connected to external power source, and the other end connected to first inputs of the first, second and third comparators, the resistor being connected between the inputs of the first, second and third comparators and ground, outputs of the first, second and third comparators being connected to an igniter, a gas valve and a system power source; a gas valve controller including a switch circuit connected to a power source, at least one gas valve circuit connected between the switch circuit and ground, and a protection circuit parallel to the at least on gas valve circuit; and a power and ignition controller driving device including a power source driving circuit, an ignition driving circuit and a comparison circuit.Type: GrantFiled: April 25, 2008Date of Patent: September 25, 2012Assignee: Shenzhen H & T Intelligent Control Co., Ltd.Inventors: Fei Ma, Fujun Cao, Jianwei Liu, Zhaobing Shou
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Patent number: 8230730Abstract: The present invention relates to a comprehensive test bed for vehicle body, which comprises an vehicle body static strength testing apparatus, an vehicle body air tightness testing apparatus, an vehicle coupler strength testing apparatus and an vehicle body mode testing apparatus, wherein the tested vehicle body is provided with a strain foil and a displacement sensor; and the strain foil and the displacement sensor are connected with a data acquisition system. The comprehensive test bed for the vehicle body can perform an vehicle body static strength test on various rail passenger vehicles, an vehicle body steel structure vibration mode test, an vehicle body partial assembly vibration mode test and an vehicle body air tightness test, and can realize strength tests on partial key components of the vehicle body (a transition vehicle coupler, a return vehicle coupler, an vehicle body chassis cross beam, a hoisting structure, an end structure, and the like).Type: GrantFiled: June 28, 2011Date of Patent: July 31, 2012Assignee: Qingdao Sifang Rolling Stock Research Institute Co., Ltd.Inventors: Fei Ma, Jie Chen, Yuanfeng Pang
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Patent number: 8098730Abstract: Systems and methods to generate a motion attention model of a video data sequence are described. In one aspect, a motion saliency map B is generated to precisely indicate motion attention areas for each frame in the video data sequence. The motion saliency maps are each based on intensity I, spatial coherence Cs, and temporal coherence Ct values. These values are extracted from each block or pixel in motion fields that are extracted from the video data sequence. Brightness values of detected motion attention areas in each frame are accumulated to generate, with respect to time, the motion attention model.Type: GrantFiled: April 3, 2006Date of Patent: January 17, 2012Assignee: Microsoft CorporationInventors: Yu-Fei Ma, Hong-Jiang Zhang
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Patent number: 8044644Abstract: An over-current condition is detected in a synchronous DC-DC converter by sampling and holding a measured load current value. The load current is sampled while a low-side transistor is ON and then held when the low-side transistor is OFF. The held value is compared to a threshold value while the low-side transistor is OFF. The comparison occurs during the portion of the cycle when the low-side transistor is OFF so that a comparator has sufficient time in which to detect the over-current condition, even in high duty cycle applications.Type: GrantFiled: April 3, 2009Date of Patent: October 25, 2011Assignee: Texas Instruments IncorporatedInventors: Jin-Biao Huang, Joseph M. Khayat, Fei Ma
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Publication number: 20110252876Abstract: The present invention relates to a comprehensive test bed for vehicle body, which comprises an vehicle body static strength testing apparatus, an vehicle body air tightness testing apparatus, an vehicle coupler strength testing apparatus and an vehicle body mode testing apparatus, wherein the tested vehicle body is provided with a strain foil and a displacement sensor; and the strain foil and the displacement sensor are connected with a data acquisition system. The comprehensive test bed for the vehicle body can perform an vehicle body static strength test on various rail passenger vehicles, an vehicle body steel structure vibration mode test, an vehicle body partial assembly vibration mode test and an vehicle body air tightness test, and can realize strength tests on partial key components of the vehicle body (a transition vehicle coupler, a return vehicle coupler, an vehicle body chassis cross beam, a hoisting structure, an end structure, and the like).Type: ApplicationFiled: June 28, 2011Publication date: October 20, 2011Applicant: QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE., LTD.Inventors: Fei MA, Jie CHEN, Yuanfeng PANG
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Patent number: 8030909Abstract: A synchronous buck converter operates in a PWM mode of operation and switches to light-load mode of operation under a light-load condition. When operating in the light-load mode, the synchronous buck converter transitions between a burst mode and an idle mode of operation. In the burst mode of operation, the converter operates with a fixed but increased duty ratio, with respect to the PWM mode of operation, that installs additional energy in an output capacitor. In the idle mode of operation, the high-side and low-side transistors are each turned off. To maximize energy savings and to quickly transition back to the PWM mode of operation if the load increases, a limit as to the number of allowed switching cycles when bursting is imposed and a minimum ratio of the number of clock cycles when idling to the number of switching cycles when bursting is set. Additionally, a comparator is provided to detect a sudden step-increase in the load to quickly switch the converter back to the PWM mode of operation.Type: GrantFiled: January 27, 2009Date of Patent: October 4, 2011Assignee: Texas Instruments IncorporatedInventors: Fei Ma, Jin-Biao Huang, Brian Thomas Lynch
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Patent number: 7986372Abstract: Systems and methods for smart media content thumbnail extraction are described. In one aspect program metadata is generated from recorded video content. The program metadata includes one or more key-frames from one or more corresponding shots. An objectively representative key-frame is identified from among the key-frames as a function of shot duration and frequency of appearance of key-frame content across multiple shots. The objectively representative key-frame is an image frame representative of the recorded video content. A thumbnail is created from the objectively representative key-frame.Type: GrantFiled: August 2, 2004Date of Patent: July 26, 2011Assignee: Microsoft CorporationInventors: Yu-Fei Ma, Bin Lin, Zhike Kong, Xinli Zou, Wei-Ying Ma, Hong-Jiang Zhang
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Publication number: 20100288262Abstract: A gas cooker control system includes an ignition controller includes a touch button, a resistor, a first comparator, a second comparator and a third comparator, the touch button comprising an end connected to external power source, and the other end connected to first inputs of the first, second and third comparators, the resistor being connected between the inputs of the first, second and third comparators and ground, second inputs of the first, second and third comparators being configured for providing a first reference voltage, a second reference voltage and a third reference voltage respectively, outputs of the first, second and third comparators being connected to an igniter, a gas valve and a system power source, a voltage of the external power source being greater than the first reference voltage, the first reference voltage being greater than the second reference voltage, the second reference voltage being greater than the third reference voltage; a gas valve controller including a switch circuit conType: ApplicationFiled: April 25, 2008Publication date: November 18, 2010Inventors: Fei Ma, Fujun Cao, Jianwei Liu, Zhaobing Shou
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Publication number: 20100253296Abstract: An over-current condition is detected in a synchronous DC-DC converter by sampling and holding a measured load current value. The load current is sampled while a low-side transistor is ON and then held when the low-side transistor is OFF. The held value is compared to a threshold value while the low-side transistor is OFF. The comparison occurs during the portion of the cycle when the low-side transistor is OFF so that a comparator has sufficient time in which to detect the over-current condition, even in high duty cycle applications.Type: ApplicationFiled: April 3, 2009Publication date: October 7, 2010Applicant: Texas Instruments IncorporatedInventors: Jin-Biao Huang, Joseph M. Khayat, Fei Ma
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Publication number: 20100188061Abstract: A synchronous buck converter operates in a PWM mode of operation and switches to light-load mode of operation under a light-load condition. When operating in the light-load mode, the synchronous buck converter transitions between a burst mode and an idle mode of operation. In the burst mode of operation, the converter operates with a fixed but increased duty ratio, with respect to the PWM mode of operation, that installs additional energy in an output capacitor. In the idle mode of operation, the high-side and low-side transistors are each turned off. To maximize energy savings and to quickly transition back to the PWM mode of operation if the load increases, a limit as to the number of allowed switching cycles when bursting is imposed and a minimum ratio of the number of clock cycles when idling to the number of switching cycles when bursting is set. Additionally, a comparator is provided to detect a sudden step-increase in the load to quickly switch the converter back to the PWM mode of operation.Type: ApplicationFiled: January 27, 2009Publication date: July 29, 2010Applicant: Texas Instruments IncorporatedInventors: Fei Ma, Jin-Biao Huang, Brian Thomas Lynch
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Patent number: 7400761Abstract: Systems and methods for image attention analysis are described. In one aspect, image attention is modeled by preprocessing an image to generate a quantized set of image blocks. A contrast-based saliency map for modeling one-to-three levels of image attention is then generated from the quantized image blocks.Type: GrantFiled: September 30, 2003Date of Patent: July 15, 2008Assignee: Microsoft CorporationInventors: Yu-Fei Ma, Hong-Jiang Zhang
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Publication number: 20080095330Abstract: Disclosed are a method, information processing system, and computer storage program product for providing communication between a user electronic device and an Interactive Voice Response (“IVR”) system. At least one selection from a user corresponding to at least one menu in an IVR system is received. The selection comprises an instruction selection sequence. At least one voice message and at least one visual message associated with the voice message, each corresponding to the instruction sequence are generated in response to the receiving. The voice message and visual message are transmitted to the electronic device associated with the user. The visual message is to be displayed to the user on an electronic device associated with the user while the voice message is being played to the user.Type: ApplicationFiled: October 24, 2007Publication date: April 24, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ling Jin, Yu Fei Ma, Pei Sun, Jun Shen, Chun Sheng Chu
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Publication number: 20080033007Abstract: Disclosed are compounds that are effective for selectively killing cancer cells. Compounds have been demonstrated to be especially effective for killing glioma cells, while exhibiting low toxicity to normal cells.Type: ApplicationFiled: April 18, 2007Publication date: February 7, 2008Inventors: Duane Miller, Eldon Geisert, Charles Yates, Renukadevi Patil, William Orr, XiangDi Wang, Fei Ma, Oleg Kirichenko
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Patent number: 7312819Abstract: A robust camera motion analysis method is described. In an implementation, a method includes analyzing video having sequential frames to determine one or more camera motions that occurred when sequential frames of the video were captured. The one or more camera motions for each frame are described by a set of displacement curves, a mean absolute difference (MAD) curve, and a major motion (MAJ) curve. The set of displacement curves describe the one or more camera motions in respective horizontal (H), vertical (V), and radial (R) directions. The MAD curve relates a minimum MAD value from the set of displacement curves. The MAJ curve is generated from the minimum MAD value and provides one or more qualitative descriptions that describe the one or more camera motions as at least one of still, vertical, horizontal and radial.Type: GrantFiled: November 24, 2003Date of Patent: December 25, 2007Assignee: Microsoft CorporationInventors: Yu-Fei Ma, Hong-Jiang Zhang, Dongjun Lan
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Patent number: 7313185Abstract: Systems and methods for representing sequential motion patterns are described. In one aspect, video frames are converted into a sequence of energy redistribution measurements. One or more motion filters are then applied to the ER measurements to generate one or more temporal sequences of motion patterns, the number of temporal sequences being a function of the number of motion filters.Type: GrantFiled: August 1, 2003Date of Patent: December 25, 2007Assignee: Microsoft CorporationInventors: Yu-Fei Ma, Gu Xu, Hong-Jiang Zhang
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Patent number: 7274741Abstract: Systems and methods to generate an attention model for computational analysis of video data are described. In one aspect, feature components from a video data sequence are extracted. Attention data is generated by applying multiple attention models to the extracted feature components. The generated attention data is integrated into a comprehensive user attention model for the computational analysis of the video data sequence.Type: GrantFiled: November 1, 2002Date of Patent: September 25, 2007Assignee: Microsoft CorporationInventors: Yu-Fei Ma, Lie Lu, Hong-Jiang Zhang
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Patent number: 7127120Abstract: Systems and methods to automatically edit a video to generate a video summary are described. In one aspect, sub-shots are extracted from the video. Importance measures are calculated for at least a portion of the extracted sub-shots. Respective relative distributions for sub-shots having relatively higher importance measures as compared to importance measures of other sub-shots are determined. Based on the determined relative distributions, sub-shots that do not exhibit a uniform distribution with respect to other sub-shots in the particular ones are dropped. The remaining sub-shots are connected with respective transitions to generate the video summary.Type: GrantFiled: November 1, 2002Date of Patent: October 24, 2006Assignee: Microsoft CorporationInventors: Xian-Sheng Hua, Lie Lu, Yu-Fei Ma, Mingjing Li, Hong-Jiang Zhang
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Patent number: 7116716Abstract: Systems and methods to generate a motion attention model of a video data sequence are described. In one aspect, a motion saliency map B is generated to precisely indicate motion attention areas for each frame in the video data sequence. The motion saliency maps are each based on intensity I, spatial coherence Cs, and temporal coherence Ct values. These values are extracted from each block or pixel in motion fields that are extracted from the video data sequence. Brightness values of detected motion attention areas in each frame are accumulated to generate, with respect to time, the motion attention model.Type: GrantFiled: November 1, 2002Date of Patent: October 3, 2006Assignee: Microsoft CorporationInventors: Yu-Fei Ma, Hong-Jiang Zhang