Patents by Inventor Lifeng Lu
Lifeng Lu 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: 11308855Abstract: Provided are a display driving method, a display panel and a display device. The display driving method includes acquiring a to-be-displayed image; the to-be-displayed image is displayed by display pixels, and a vertical projection of each touch electrode on a plane in which the display pixels are located covers a plurality of display pixels; determining whether an area in which touch electrodes are located is in a display dark area according to the to-be-displayed image; and in response to determining that the area in which the touch electrodes are located is in the display dark area, stopping providing a touch driving signal for at least part of the touch electrodes disposed in the display dark area.Type: GrantFiled: August 28, 2019Date of Patent: April 19, 2022Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Meng Lai, Lifeng Lu, Zhilong Zhuang, Jiancai Huang, Yumin Xu
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Patent number: 11270093Abstract: The present disclosure provides a display panel and a display device. The display panel includes a plurality of fingerprint recognition circuits. At least one of the plurality of fingerprint recognition circuits includes a light sense signal obtaining unit and a subtracted. The light sense signal obtaining unit is configured to obtain a first light sense voltage value and a second light sense voltage value, the first light sense voltage value is related to a first power voltage value, the second light sense voltage value is related to a second power voltage value, and the first power voltage value is greater than the second power voltage value. The subtracted is configured to subtract the second light sense voltage value from the first light sense voltage value to obtain a light sense data value.Type: GrantFiled: February 13, 2020Date of Patent: March 8, 2022Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTDInventors: Meng Lai, Lifeng Lu, Zhilong Zhuang, Jiancai Huang, Yumin Xu, Xianyan Yang
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Publication number: 20210407373Abstract: Provided are a display driving method, a display panel and a display device. The display driving method includes acquiring a to-be-displayed image; the to-be-displayed image is displayed by display pixels, and a vertical projection of each touch electrode on a plane in which the display pixels are located covers a plurality of display pixels; determining whether an area in which touch electrodes are located is in a display dark area according to the to-be-displayed image; and in response to determining that the area in which the touch electrodes are located is in the display dark area, stopping providing a touch driving signal for at least part of the touch electrodes disposed in the display dark area.Type: ApplicationFiled: August 28, 2019Publication date: December 30, 2021Inventors: Meng LAI, Lifeng LU, Zhilong ZHUANG, Jiancai HUANG, Yumin XU
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Publication number: 20210165989Abstract: The present disclosure provides a display panel and a display device. The display panel includes a plurality of fingerprint recognition circuits. At least one of the plurality of fingerprint recognition circuits includes a light sense signal obtaining unit and a subtracted. The light sense signal obtaining unit is configured to obtain a first light sense voltage value and a second light sense voltage value, the first light sense voltage value is related to a first power voltage value, the second light sense voltage value is related to a second power voltage value, and the first power voltage value is greater than the second power voltage value. The subtracted is configured to subtract the second light sense voltage value from the first light sense voltage value to obtain a light sense data value.Type: ApplicationFiled: February 13, 2020Publication date: June 3, 2021Applicant: Xiamen Tianma Micro-Electronics Co.,LtdInventors: Meng LAI, Lifeng LU, Zhilong ZHUANG, Jiancai HUANG, Yumin XU, Xianyan YANG
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Patent number: 10016899Abstract: The present invention relates to an elastic corrugated pipe single-acting cylinder-driven mechanical gripper with a series-connection loose-leaf hinge framework. The mechanical gripper consists of a palm and two flexible fingers or a palm and three flexible fingers. The flexible fingers are identical in structure, and each one of the flexible fingers consists of an elastic corrugated pipe single-acting cylinder and a series-connection loose-leaf hinge. Each one of the series-connection loose-leaf hinges has a hinge mandrel equipped with a torsion spring, and the characteristic parameters and pre-tightening angle of the torsion spring are optimally designed according to the features of a grasped object. The mechanical gripper is driven by the elastic corrugated pipe single-acting cylinder to generate a grasping force. The mechanical gripper applies to the grasping of fragile brittle objects, or grasping of objects with varying shapes and dimensions.Type: GrantFiled: May 11, 2016Date of Patent: July 10, 2018Assignee: JIANGNAN UNIVERSITYInventors: Jun Zhang, Qiuping Li, Jiaping Zhang, Lifeng Lu, Bing Lv
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Patent number: 10011024Abstract: Disclosed is an elastic corrugated pipe single-acting cylinder-driven mechanical gripper with a series-connection flexible hinge framework. The mechanical gripper consists of a palm and two flexible fingers or a palm and three flexible fingers. Each of the flexible fingers is identical in structure, and essentially consists of an elastic corrugated pipe single-acting cylinder (8) and a series-connection flexible hinge (4); configuration of the series-connection flexible hinge (4) is designed according to features of grasping objects; the mechanical gripper generates a grasping force by the elastic corrugated pipe single-acting cylinder (8).Type: GrantFiled: May 11, 2016Date of Patent: July 3, 2018Assignee: JIANGNAN UNIVERSITYInventors: Jun Zhang, Chenyang Fan, Jiaping Zhang, Lifeng Lu, Bing Lv
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Publication number: 20180154527Abstract: Disclosed is an elastic corrugated pipe single-acting cylinder-driven mechanical gripper with a series-connection flexible hinge framework. The mechanical gripper consists of a palm and two flexible fingers or a palm and three flexible fingers. Each of the flexible fingers is identical in structure, and essentially consists of an elastic corrugated pipe single-acting cylinder (8) and a series-connection flexible hinge (4); configuration of the series-connection flexible hinge (4) is designed according to features of grasping objects; the mechanical gripper generates a grasping force by the elastic corrugated pipe single-acting cylinder (8).Type: ApplicationFiled: May 11, 2016Publication date: June 7, 2018Applicant: Jiangnan UniversityInventors: Jun ZHANG, Chenyang FAN, Jiaping ZHANG, Lifeng LU, Bing LV
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Publication number: 20180043544Abstract: The present invention relates to an elastic corrugated pipe single-acting cylinder-driven mechanical arm with a series-connection loose-leaf hinge framework. The mechanical arm consists of a palm and two flexible fingers or a palm and three flexible fingers. The flexible fingers are identical in structure, and each one of the flexible fingers consists of an elastic corrugated pipe single-acting cylinder and a series-connection loose-leaf hinge. Each one of the series-connection loose-leaf hinges has a hinge mandrel equipped with a torsion spring, and the characteristic parameters and pre-tightening angle of the torsion spring are optimally designed according to the features of a grasped object. The mechanical arm is driven by the elastic corrugated pipe single-acting cylinder to generate a grasping force. The mechanical arm applies to the grasping of fragile brittle objects, or grasping of objects with varying shapes and dimensions.Type: ApplicationFiled: May 11, 2016Publication date: February 15, 2018Applicant: Jiangnan UniversityInventors: Jun ZHANG, Qiuping LI, Jiaping ZHANG, Lifeng LU, Bing LV
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Patent number: 7685570Abstract: An error/exception helper may provide tailored help when an error such as an exception is generated. A source program editor interface may be displayed and/or focus given to the program editor interface. An error/exception bubble or tool tip may be displayed, which, in one embodiment of the invention, points to the line of code that generated the exception. The error/exception bubble may include a link to a help topic or the actual help text may be displayed within the bubble. The bubble may also include one or more actions that may be taken to correct the error or a link to a procedure to perform the action(s). The source code may be edited, actions initiated and execution re-initiated at which time the bubble and editor interface display may be dismissed.Type: GrantFiled: June 9, 2003Date of Patent: March 23, 2010Assignee: Microsoft CorporationInventors: Sean Conway Draine, David K. Templin, Eric Gordon Knox, Lifeng Lu
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Publication number: 20040250175Abstract: An error/exception helper may provide tailored help when an error such as an exception is generated. A source program editor interface may be displayed and/or focus given to the program editor interface. An error/exception bubble or tool tip may be displayed, which, in one embodiment of the invention, points to the line of code that generated the exception. The error/exception bubble may include a link to a help topic or the actual help text may be displayed within the bubble. The bubble may also include one or more actions that may be taken to correct the error or a link to a procedure to perform the action(s). The source code may be edited, actions initiated and execution re-initiated at which time the bubble and editor interface display may be dismissed.Type: ApplicationFiled: June 9, 2003Publication date: December 9, 2004Applicant: Microsoft CorporationInventors: Sean Conway Draine, David K. Templin, Eric Gordon Knox, Lifeng Lu
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Patent number: 4768482Abstract: Automatic control and fuel saving means for internal combustion engines, comprising: at least one centrifugal speed sensor having at least one pair of flyweights, which flyweights are disposed in the guide tracks on a holder, the said guide tracks are such orientated that the components of the centrifugal forces of the flyweights in the guide track directions substantially match the elastic forces of the spring exerting on the flyweights; a mode shifting device connected to the said speed sensor and to the manual operating mechanisms, the said mode shifting device alternately puts the engine into the automatic control mode by the said speed sensor or into the manual control mode.Type: GrantFiled: December 3, 1986Date of Patent: September 6, 1988Inventors: Ansheng Cheng, Lifeng Lu, Jinghuan Chen, Bin Xu