Patents by Inventor Fu-Chen Chen
Fu-Chen Chen 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: 20220172346Abstract: Systems and methods for detecting cracks in a surface by analyzing a video, including an full-HD video, of the surface. The video contains successive frames, wherein individual frames of overlapping consecutive pairs of the successive frames have overlapping areas and a crack that appears in a first individual frame of a consecutive pair of the successive frames also appears in at least a second individual frame of the consecutive pair. A fully convolutional network (FCN) architecture implemented on a processing device is then used to analyze at least some of the individual frames of the video to generate crack score maps for the individual frames, and a parametric data fusion scheme implemented on a processing device is used to fuse crack scores of the crack score maps of the individual frames to identify cracks in the individual frames.Type: ApplicationFiled: April 9, 2020Publication date: June 2, 2022Inventors: Fu-Chen Chen, Mohammad R. Jahanshahi
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Patent number: 10753881Abstract: Systems and methods suitable for capable of autonomous crack detection in surfaces by analyzing video of the surface. The systems and methods include the capability to produce a video of the surfaces, the capability to analyze individual frames of the video to obtain surface texture feature data for areas of the surfaces depicted in each of the individual frames, the capability to analyze the surface texture feature data to detect surface texture features in the areas of the surfaces depicted in each of the individual frames, the capability of tracking the motion of the detected surface texture features in the individual frames to produce tracking data, and the capability of using the tracking data to filter non-crack surface texture features from the detected surface texture features in the individual frames.Type: GrantFiled: May 26, 2017Date of Patent: August 25, 2020Assignee: Purdue Research FoundationInventors: Mohammad Reza Jahanshahi, Fu-Chen Chen
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Publication number: 20180107334Abstract: There is provided a capacitive touch device including a controlling and processing circuit and a touch panel. The touch panel has a plurality of detection cells arranged in matrix. The controlling and processing circuit is configured to input a drive signal to the detection cells of the touch panel and read measurement data from the detection cells for post-processing, wherein the controlling and processing circuit reads a first sampling number of the measurement data of the detection cells in a normal mode and a second sampling number of the measurement data of the detection cells in a sleep mode, and the second sampling number is lower than the first sampling number.Type: ApplicationFiled: December 19, 2017Publication date: April 19, 2018Inventors: Fu-Chen CHEN, Ming-Tsan KAO, Yu-Han CHEN
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Publication number: 20170343481Abstract: Systems and methods suitable for capable of autonomous crack detection in surfaces by analyzing video of the surface. The systems and methods include the capability to produce a video of the surfaces, the capability to analyze individual frames of the video to obtain surface texture feature data for areas of the surfaces depicted in each of the individual frames, the capability to analyze the surface texture feature data to detect surface texture features in the areas of the surfaces depicted in each of the individual frames, the capability of tracking the motion of the detected surface texture features in the individual frames to produce tracking data, and the capability of using the tracking data to filter non-crack surface texture features from the detected surface texture features in the individual frames.Type: ApplicationFiled: May 26, 2017Publication date: November 30, 2017Inventors: Mohammad Reza Jahanshahi, Fu-Chen Chen
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Patent number: 9254413Abstract: An elliptical exerciser includes a body having two foot support links and two rotation members. The rotation members are rotated about their respective rotation pivots to drive the foot support links to move along a supporting travel and a crossing travel to complete a closed pedal trajectory. The timing adjustment wheel is pivotally connected to the body. A distance is defined between the pivot of the timing adjustment wheel and either of the rotation pivots of the rotation members. Two connecting links are pivotally connected to the timing adjustment wheel. The lengths of the two connecting links are longer than the distance. When one of the foot support links moves within the supporting travel and rotates one of the rotation members, the timing adjustment wheel drives the other foot support link to move within the crossing travel and produces speed and phase differences to be more ergonomic.Type: GrantFiled: November 19, 2013Date of Patent: February 9, 2016Assignee: KUN SHAN UNIVERSITYInventors: Fu-Chen Chen, Wei-Ren Chen, Meng-Hui Hsu
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Patent number: 9254412Abstract: An exerciser includes a body and an adjustment wheel. The body has two flywheels and two foot support links. The two flywheels each have a sliding portion which radially connected thereto so as to guide the two foot support links to alternatively move along a supporting travel and a crossing travel to complete a closed pedal trajectory when the flywheels rotate. The timing adjustment wheel is pivotally connected to the body. The timing adjustment wheel has a first slider and a second slider, the first and second sliders are configured to move along the sliding portions of the flywheels. The foot support links drives the flywheel to rotate so that the first and second sliders move along the sliding portions to change the speeds and phase differences of the foot support links so as to meet the principles of ergonomics.Type: GrantFiled: November 19, 2013Date of Patent: February 9, 2016Assignee: KUN SHAN UNIVERSITYInventors: Fu-Chen Chen, Wei-Ren Chen, Meng-Hui Hsu
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Publication number: 20150141209Abstract: An elliptical exerciser includes a body having two foot support links and two rotation members. The rotation members are rotated about their respective rotation pivots to drive the foot support links to move along a supporting travel and a crossing travel to complete a closed pedal trajectory. The timing adjustment wheel is pivotally connected to the body. A distance is defined between the pivot of the timing adjustment wheel and either of the rotation pivots of the rotation members. Two connecting links are pivotally connected to the timing adjustment wheel. The lengths of the two connecting links are longer than the distance. When one of the foot support links moves within the supporting travel and rotates one of the rotation members, the timing adjustment wheel drives the other foot support link to move within the crossing travel and produces speed and phase differences to be more ergonomic.Type: ApplicationFiled: November 19, 2013Publication date: May 21, 2015Applicant: Kun Shan UniversityInventors: Fu-Chen CHEN, Wei-Ren CHEN, Meng-Hui HSU
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Publication number: 20150141208Abstract: An exerciser includes a body and an adjustment wheel. The body has two flywheels and two foot support links. The two flywheels each have a sliding portion which radially connected thereto so as to guide the two foot support links to alternatively move along a supporting travel and a crossing travel to complete a closed pedal trajectory when the flywheels rotate. The timing adjustment wheel is pivotally connected to the body. The timing adjustment wheel has a first slider and a second slider, the first and second sliders are configured to move along the sliding portions of the flywheels. The foot support links drives the flywheel to rotate so that the first and second sliders move along the sliding portions to change the speeds and phase differences of the foot support links so as to meet the principles of ergonomics.Type: ApplicationFiled: November 19, 2013Publication date: May 21, 2015Applicant: Kun Shan UniversityInventors: Fu-Chen CHEN, Wei-Ren CHEN, Meng-Hui HSU
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Publication number: 20140253497Abstract: There is provided a capacitive touch device including a controlling and processing circuit and a touch panel. The touch panel has a plurality of detection cells arranged in matrix. The controlling and processing circuit is configured to input a drive signal to the detection cells of the touch panel and read measurement data from the detection cells for post-processing, wherein the controlling and processing circuit reads a first sampling number of the measurement data of the detection cells in a normal mode and a second sampling number of the measurement data of the detection cells in a sleep mode, and the second sampling number is lower than the first sampling number.Type: ApplicationFiled: January 23, 2014Publication date: September 11, 2014Applicant: PIXART IMAGING INC.Inventors: FU-CHEN CHEN, MING-TSAN KAO, YU-HAN CHEN
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Patent number: 8417385Abstract: There is provided a home appliance control device for obtaining various parameters of each active object according to a variation between a plurality of current images acquired by an image sensor or according to a relation of a current image acquired by the image sensor with respect to a reference image or a reference data thereby determining an operation state of a home appliance.Type: GrantFiled: September 4, 2011Date of Patent: April 9, 2013Assignee: Pixart Imaging Inc.Inventors: Fu Chen Chen, Hsin Chia Chen, Yi Hsien Ko, Ming Tsan Kao
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Publication number: 20110320013Abstract: There is provided a home appliance control device for obtaining various parameters of each active object according to a variation between a plurality of current images acquired by an image sensor or according to a relation of a current image acquired by the image sensor with respect to a reference image or a reference data thereby determining an operation state of a home appliance.Type: ApplicationFiled: September 4, 2011Publication date: December 29, 2011Applicant: PixArt Imaging Inc.Inventors: Fu Chen CHEN, Hsin Chia CHEN, Yi Hsien KO, Ming Tsan KAO
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Publication number: 20070090575Abstract: This invention presented is a method of polymerizing colored patterns inside a mode, comprising a top pattern, a middle pattern and a bottom pattern, enabling a meltable object to be infused into the mode for forming the mold shape. The bottom pattern enables a thermal-transfer film to be put thereon, and then the middle pattern keeps down the perimeter of the thermal-transfer film for fixing the film and forming a vacuity, thereby the thermal-transfer film is able to completely contact the cavity inside the bottom pattern; subsequently, a meltable object is infused into the mold after the mold is closed. Seeing that the thermal-transfer film is a thermoplastic polymer having a similar property to the meltable object, therefore, the thermal-transfer film is able to be directly printed on the meltable object surface by way of the hot temperature of the meltable object. The transfer printing process is then finished after the meltable object inside the mold is shaped.Type: ApplicationFiled: October 26, 2005Publication date: April 26, 2007Inventor: Fu-Chen Chen
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Patent number: 5816987Abstract: An automatic tool changer in a machining center includes a reducer, a compound cam, a cylindric cam, a four-bar mechanism, an elliptic trammel mechanism, and a tool changer device. The compound cam and the cylindric cam are driven by a motor after speed reduction through a belt and gear train. The compound cam which is composed of a roller gear cam and a face cam performs the tool change motions. During the tool change motions, the cylindric cam drives the follower which is fixed on the slider of the elliptic trammel mechanism to make the other slider push the pull bar which produces the pushing and pulling tool motions in the spindle head. By way of using this design, the tool change time is largely reduced, the tool change motions are smoother, and the cost is less expensive than the previous designs.Type: GrantFiled: October 25, 1996Date of Patent: October 6, 1998Assignee: National Science CouncilInventors: Hong-Sen Yan, Wen-Miin Hwang, Fu-Chen Chen, Han-Chuan Huang, Yan-Sheng Fan
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Patent number: 5752905Abstract: The present invention is related to an automatic tool-changing mechanism adapted to be used in a machining center and including a power source, a machine frame and an automatic tool changing device secured to the machine frame, wherein the automatic tool changing device includes a tool changer secured to the machine frame for functioning in tool-grasping, tool-extracting, tool-interchanging, tool-inserting and tool-returning motions; a rotating device secured to a driving shaft and coupled to the tool changer and a swing arm device, the rotating device including a first and second rotating elements in which the first rotating element is used for enabling a to-and-fro swing motion of the swing arm device and the second rotating element is used for enabling a to-and-fro rotary motion of the tool changer to perform the tool-grasping, tool-interchanging and tool-returning motions; and the swing arm device having an intermediate portion thereof pivotally coupled to the machine frame and a first end portion and a sType: GrantFiled: July 2, 1996Date of Patent: May 19, 1998Assignee: National Science CouncilInventors: Hong-Sen Yan, Fu-Chen Chen
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Patent number: 5749819Abstract: An automatic tool changer in a machining enter includes a reducer, a compound cam, a cylindrical cam, a four-bar mechanism, a toggle mechanism, and a tool cahnge device. The compound cam and the cylindrical cam are driven by a motor after speed reduction through a belt and gear train. The compound cam includes a roller gear cam and a face cam performs the tool change motions. During the tool change motions, the cylindrical cam drives the crank of the toggle mechanism to make the slider push the drawback which produces the pushing and pulling tool motions in the spindle head. By way of using this design, the tool change time is largely reduced, the tool change motions are more smooth, and the cost can be cheaper than the previous design.Type: GrantFiled: June 14, 1996Date of Patent: May 12, 1998Assignee: National Science CouncilInventors: Hong-Sen Yan, Wen-Miin Hwang, Fu-Chen Chen, Philine Huang, Yang-Sheng Fan