Patents by Inventor Chung-Ta Lee
Chung-Ta Lee 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).
-
Publication number: 20230218139Abstract: Method for extending battery life and a capsule endoscope using the method are disclosed. According to this method, a peak current in a current profile consumed by the capsule endoscope is identified, where the peak current is contributed by at least two sub-tasks associated with operations of the capsule endoscope and said at least two sub-tasks are performed overlapping in time. A running voltage indicating a battery output voltage at or near time instances of the peak current is determined. When the running voltage a condition caused by IR (battery internal-resistance) voltage drop, the sub-tasks are adjusted to reduce overlapping so as to reduce the peak current to a second peak current. According to another method, at least one sub-task is switched to another sub-task when the running voltage is below a threshold.Type: ApplicationFiled: February 22, 2023Publication date: July 13, 2023Inventors: Kang-Huai Wang, Mark Hadley, Chang-Wei Lin, Chung-Ta Lee
-
Patent number: 11434537Abstract: Provided is a method of accurate and sensitive characterization and prognosis of colorectal cancer in a subject. The method includes obtaining a cancer tissue from the subject and determining the expression level of a miRNA and a target gene of the miRNA. Also provided is a kit for prognosis of colorectal cancer in a subject in need thereof.Type: GrantFiled: February 14, 2020Date of Patent: September 6, 2022Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Nan-Haw Chow, Chien-An Chu, Hsiao-Sheng Liu, Chung-Ta Lee
-
Publication number: 20220192467Abstract: Method for extending battery life and a capsule endoscope using the method are disclosed. According to this method, sub-tasks associated with capturing one image using the capsule endoscope when the capsule endoscope moves through a human GI (gastrointestinal) tract after being ingested by a human subject are identified. The capsule endoscope is capable of capturing an image sequence at a first frame period, and at least two sub-tasks are performed with partial or full overlap. One or more images are captured at a second frame period by performing sub-task spreading, where the sub-task spreading spreads the sub-tasks over time to reduce or avoid the partial or full overlap for said at least two sub-tasks so as to reduce a sub-task peak current or peak current duration. The second frame period is longer than the first frame period.Type: ApplicationFiled: December 20, 2020Publication date: June 23, 2022Inventors: Kang-Huai Wang, Mark Hadley, Chang-Wei Lin, Chung-Ta Lee
-
Publication number: 20210262036Abstract: Provided is a method of accurate and sensitive characterization and prognosis of colorectal cancer in a subject. The method includes obtaining a cancer tissue from the subject and determining the expression level of a miRNA and a target gene of the miRNA. Also provided is a kit for prognosis of colorectal cancer in a subject in need thereof.Type: ApplicationFiled: February 14, 2020Publication date: August 26, 2021Inventors: Nan-Haw Chow, Chien-An Chu, Hsiao-Sheng Liu, Chung-Ta Lee
-
Patent number: 10881282Abstract: A capsule endoscopic system is disclosed, where the system comprises a capsule device and a docking device. The capsule device comprises a battery, a secondary coil, and a capsule housing to enclose the battery and the secondary coil in a sealed environment, where the capsule device consists of a first end and a second end in a longitudinal direction of the capsule device, and the battery is located in proximity to the first end and the secondary coil is located in proximity to the second end. The docking device comprises an opening on the docking device, a primary coil to generate an alternating magnetic field, and a primary core. The capsule endoscopic system is arranged so that at least a portion of the secondary coil is enclosed by the primary coil and the battery is outside the primary coil when the capsule device is at the docked position.Type: GrantFiled: April 18, 2019Date of Patent: January 5, 2021Assignee: CAPSOVISION INC.Inventors: Gordon C. Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Patent number: 10869594Abstract: A capsule endoscopic system is disclosed, where the system comprises a capsule device and a docking device. The capsule device comprises a battery, a secondary coil, and a capsule housing to enclose the battery and the secondary coil in a sealed environment, where the capsule device consists of a first end and a second end in a longitudinal direction of the capsule device, and the battery is located in proximity to the first end and the secondary coil is located in proximity to the second end. The docking device comprises an opening on the docking device, a primary coil to generate an alternating magnetic field, and a primary core. The capsule endoscopic system is arranged so that the primary coil is wrapped around at least a portion of the primary core.Type: GrantFiled: April 18, 2019Date of Patent: December 22, 2020Assignee: CAPSOVISION INC.Inventors: Gordon C. Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Patent number: 10602913Abstract: A capsule endoscopic system is disclosed, where the system comprises a capsule device and a docking device. The capsule device comprises a battery, a secondary coil, an optical transmitter all enclosed in a capsule housing. The docking device comprises a primary coil to generate an alternating magnetic field, a primary core and optical receiver to receive an optical signal. The alternating magnetic field is coupled to the secondary coil to supply power to the capsule device when the capsule device is at a docked position in the docking device. The primary core is arranged to concentrate the alternating magnetic field on the secondary coil when the capsule device is at the docked position. Furthermore, the capsule endoscopic system is arranged so that an optical path is formed between the optical transmitter and the optical receiver when the capsule device is at the docked position.Type: GrantFiled: April 18, 2019Date of Patent: March 31, 2020Assignee: CAPSOVISION INC.Inventors: Gordon C. Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Publication number: 20190239719Abstract: A capsule endoscopic system is disclosed, where the system comprises a capsule device and a docking device. The capsule device comprises a battery, a secondary coil, and a capsule housing to enclose the battery and the secondary coil in a sealed environment, where the capsule device consists of a first end and a second end in a longitudinal direction of the capsule device, and the battery is located in proximity to the first end and the secondary coil is located in proximity to the second end. The docking device comprises an opening on the docking device, a primary coil to generate an alternating magnetic field, and a primary core. The capsule endoscopic system is arranged so that at least a portion of the secondary coil is enclosed by the primary coil and the battery is outside the primary coil when the capsule device is at the docked position.Type: ApplicationFiled: April 18, 2019Publication date: August 8, 2019Inventors: Gordon C. Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Publication number: 20190239721Abstract: A capsule endoscopic system is disclosed, where the system comprises a capsule device and a docking device. The capsule device comprises a battery, a secondary coil, an optical transmitter all enclosed in a capsule housing. The docking device comprises a primary coil to generate an alternating magnetic field, a primary core and optical receiver to receive an optical signal. The alternating magnetic field is coupled to the secondary coil to supply power to the capsule device when the capsule device is at a docked position in the docking device. The primary core is arranged to concentrate the alternating magnetic field on the secondary coil when the capsule device is at the docked position. Furthermore, the capsule endoscopic system is arranged so that an optical path is formed between the optical transmitter and the optical receiver when the capsule device is at the docked position.Type: ApplicationFiled: April 18, 2019Publication date: August 8, 2019Inventors: Gordon C. Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Publication number: 20190239720Abstract: A capsule endoscopic system is disclosed, where the system comprises a capsule device and a docking device. The capsule device comprises a battery, a secondary coil, and a capsule housing to enclose the battery and the secondary coil in a sealed environment, where the capsule device consists of a first end and a second end in a longitudinal direction of the capsule device, and the battery is located in proximity to the first end and the secondary coil is located in proximity to the second end. The docking device comprises an opening on the docking device, a primary coil to generate an alternating magnetic field, and a primary core. The capsule endoscopic system is arranged so that the primary coil is wrapped around at least a portion of the primary core.Type: ApplicationFiled: April 18, 2019Publication date: August 8, 2019Inventors: Gordon C. Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Patent number: 10201266Abstract: A method and apparatus for capturing an image sequence using a capsule camera are disclosed. According to the present invention, a first energy-based frame time for the special images is determined based on first light energy perceived by the image sensor and a second energy-based frame time for the regular images is determined based on second light energy perceived by the image sensor. The capsule camera captures the image sequence comprising one or more sets of mixed-type images by configuring the capsule camera to cause a mixed-frame distance between the first energy-based frame time for one special image in a target set of mixed-type images and the second energy-based frame time for one regular image in the target set of mixed-type images smaller than an average frame period.Type: GrantFiled: June 3, 2017Date of Patent: February 12, 2019Inventors: Kang-Huai Wang, Mark Hadley, Chung-Ta Lee, Chang-Wei Lin
-
Patent number: 10159400Abstract: A capsule endoscopic system is disclosed for receiving data from a capsule device and providing inductive power to the capsule device wirelessly, where the capsule endoscopic system incorporates a feature to automatically protect the capsule device and the docking device from damage if the capsule device is docked in a backward orientation. In one embodiment, the docking device comprises a current sense circuit to detect the current flowing through the primary coil or primary drive circuit. The occurrence of wrong orientation can be detected from the current. A detection/control circuit can be used to provide the needed control in order to prevent damage to the system. In another embodiment, a resonant circuit comprising a capacitor and the primary coil is used to provide the needed protection when the capsule device is docked with a wrong orientation.Type: GrantFiled: April 30, 2018Date of Patent: December 25, 2018Assignee: CAPSOVISION INC.Inventors: Gordon C Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee, James Blanc
-
Publication number: 20180249890Abstract: A capsule endoscopic system is disclosed for receiving data from a capsule device and providing inductive power to the capsule device wirelessly, where the capsule endoscopic system incorporates a feature to automatically protect the capsule device and the docking device from damage if the capsule device is docked in a backward orientation. In one embodiment, the docking device comprises a current sense circuit to detect the current flowing through the primary coil or primary drive circuit. The occurrence of wrong orientation can be detected from the current. A detection/control circuit can be used to provide the needed control in order to prevent damage to the system. In another embodiment, a resonant circuit comprising a capacitor and the primary coil is used to provide the needed protection when the capsule device is docked with a wrong orientation.Type: ApplicationFiled: April 30, 2018Publication date: September 6, 2018Inventors: Gordon C. Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee, James Blanc
-
Patent number: 10010241Abstract: A capsule endoscopic system is disclosed for receiving data from a capsule device and providing inductive power to the capsule device wirelessly, where the capsule endoscopic system incorporates a feature to automatically protect the capsule device and the docking device from damage if the capsule device is docked in a backward orientation. In one embodiment, the docking device comprises a current sense circuit to detect the current flowing through the primary coil or primary drive circuit. The occurrence of wrong orientation can be detected from the current. A detection/control circuit can be used to provide the needed control in order to prevent damage to the system. In another embodiment, a resonant circuit comprising a capacitor and the primary coil is used to provide the needed protection when the capsule device is docked with a wrong orientation.Type: GrantFiled: July 25, 2014Date of Patent: July 3, 2018Assignee: CAPSOVISION INCInventors: Gordon C Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee, James Blanc
-
Publication number: 20170265730Abstract: A method and apparatus for capturing an image sequence using a capsule camera are disclosed. According to the present invention, a first energy-based frame time for the special images is determined based on first light energy perceived by the image sensor and a second energy-based frame time for the regular images is determined based on second light energy perceived by the image sensor. The capsule camera captures the image sequence comprising one or more sets of mixed-type images by configuring the capsule camera to cause a mixed-frame distance between the first energy-based frame time for one special image in a target set of mixed-type images and the second energy-based frame time for one regular image in the target set of mixed-type images smaller than an average frame period.Type: ApplicationFiled: June 3, 2017Publication date: September 21, 2017Inventors: Kang-Huai WANG, Mark HADLEY, Chung-Ta LEE, Chang-Wei LIN
-
Patent number: 9285670Abstract: A method for transmitting data to a camera without requiring in the camera a conventional wireless transmission capability includes (a) in the camera's field of view, providing an object which forms an image on which the data is encoded; (b) capturing an image of the object using optics of the camera; and (c) recovering the data from the image of the object. The data is encoded by an optically detectable quantity (e.g., light intensity or color) or a pattern in one or more portions of the object. The data can be carried by the distribution of the optically detectable quantity within the image or its derivative. The field of view of the camera may be divided into multiple sub-areas to allow providing multiple data-bearing images. A sequence of such images may be used to increase the amount of data that can be transmitted in this manner.Type: GrantFiled: September 14, 2007Date of Patent: March 15, 2016Assignee: Capso Vision, Inc.Inventors: Kang-Huai Wang, Chung-Ta Lee
-
Publication number: 20150141752Abstract: A capsule endoscopic system with wireless docking device is disclosed, where the system comprises a capsule device and a docking device for receiving the data from the capsule device. The docking device supplies power to the capsule device and retrieves data from the capsule device wirelessly. The capsule device comprises an archival memory to store data captured inside a body lumen by the capsule device, a wireless transmitter to transmit the stored data, a secondary coil. The docking device comprises a primary coil to generate an alternating magnetic field, wherein the magnetic field is coupled to the secondary coil to supply power to the capsule device wirelessly when the capsule device is docked in the docking device and a wireless receiver to receive the data from the capsule device. The wireless link can be a radio frequency (RF) link or an optical link.Type: ApplicationFiled: May 2, 2013Publication date: May 21, 2015Inventors: Gordon C Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Publication number: 20140364688Abstract: A capsule endoscopic system is disclosed for receiving data from a capsule device and providing inductive power to the capsule device wirelessly, where the capsule endoscopic system incorporates a feature to automatically protect the capsule device and the docking device from damage if the capsule device is docked in a backward orientation. In one embodiment, the docking device comprises a current sense circuit to detect the current flowing through the primary coil or primary drive circuit. The occurrence of wrong orientation can be detected from the current. A detection/control circuit can be used to provide the needed control in order to prevent damage to the system. In another embodiment, a resonant circuit comprising a capacitor and the primary coil is used to provide the needed protection when the capsule device is docked with a wrong orientation.Type: ApplicationFiled: July 25, 2014Publication date: December 11, 2014Inventors: Gordon C Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee, James Blanc
-
Publication number: 20140323804Abstract: A capsule device with an inductive powering apparatus is disclosed. The capsule device comprises a secondary coil to generate an induced secondary voltage when a first alternating magnetic field is coupled to the secondary coil externally. Embodiments of the present invention utilize a power conversion device to convert the induced secondary voltage into a DC output voltage for the capsule device. In particular, the power conversion device comprises a voltage booster to generate the DC voltage from a lower induced secondary voltage. Accordingly, the system can be operated using a lower secondary voltage, which will reduce the influence of magnetic flux on the circuit boards inside the capsule.Type: ApplicationFiled: July 15, 2014Publication date: October 30, 2014Applicant: Capso Vision, Inc.Inventors: Gordon C Wilson, Jiafu Luo, Kang-Huai Wang, Chung-Ta Lee
-
Patent number: 8031320Abstract: An LCD panel includes an array substrate, an opposite substrate and a liquid crystal layer. The opposite substrate is opposite to the array substrate, and the liquid crystal layer is disposed between the array substrate and the opposite substrate. The array substrate includes a substrate, an array, a sealant and a stop structure. The array disposed on the substrate is a thin-film transistor array or a color filter array. The sealant has a first end and a second end, and the first and second ends form an inlet. The stop structure is placed at least between the first end of the sealant frame and a side of the substrate.Type: GrantFiled: December 30, 2008Date of Patent: October 4, 2011Assignee: AU Optronics CorporationInventors: Chung Ta Lee, Yu Tung Wu