Patents Assigned to National Chiao Tung University
-
Patent number: 10439385Abstract: A biomedical stimulation protection device includes a current source, a first upper P-channel metal oxide semiconductor field effect transistor (PMOSFET), a first adaptive bias circuit, and six first stimulating metal oxide semiconductor field effect transistors (MOSFETs). The first adaptive bias circuit receives a power voltage (VDD), a double power voltage (2VDD), and a triple power voltage (3VDD). The first upper MOSFET and the first stimulating MOSFETs are electrically cascoded with each other. The first adaptive bias circuit turns on at least one of the first stimulating MOSFETs according to VDD, 2VDD, and 3VDD, so as to stimulate a physiological tissue and control a voltage difference between two terminals of each of the first upper MOSFET and the first stimulating MOSFETs to be lower than or equal to VDD.Type: GrantFiled: March 28, 2019Date of Patent: October 8, 2019Assignee: National Chiao Tung UniversityInventors: Chung-Yu Wu, Chi-Wei Huang, Cheng-Hsiang Cheng
-
Patent number: 10439621Abstract: A two-step switching method of circuit switch can be used in a charge pump circuit of a phase locked loop circuit. In the method, a first type switch and a second type switch which have the same sizes and are opposite in type, are provided. The first type switch and second type switch continuously receive an input current, and the input current is kept at a low current state in a first stage before the first type switch and the second type switch are turned on. In a second stage, the first type switch and the second type switch are turned on, the input current is gradually adjusted to a target current state, and the input current of the target current state is gradually supplied to an external circuit. The present method can reduce noise generated by the external circuit, reduce power loss, and offset charge injection.Type: GrantFiled: November 13, 2018Date of Patent: October 8, 2019Assignee: National Chiao Tung UniversityInventors: Shih-Hsing Wang, Chung-Chih Hung
-
Patent number: 10428427Abstract: A fabrication method for two-dimensional materials of the present invention includes the following steps: forming a thin film having at least one two-dimensional element on a substrate; forming at least one capping layer on the thin film; annealing the thin film to form a two-dimensional material film after the capping layer is formed.Type: GrantFiled: September 8, 2017Date of Patent: October 1, 2019Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Tuo-Hung Hou, Jyun-Hong Huang
-
Patent number: 10428085Abstract: An asymmetric benzotrichalcogenophene compound and a polymer are provided. The asymmetric benzotrichalcogenophene compound is a heterocyclic compound having furan, thiophene, selenophene and/or tellurophene subunits. The polymer has an asymmetric benzotrichalcogenophene subunit and can be formed by polymerizing the asymmetric benzotrichalcogenophene compound and an electron-accepting compound. The polymer may be used as a semiconductor active layer material in an organic field effect transistor or a heterogeneous interface material of an organic solar cell.Type: GrantFiled: August 30, 2018Date of Patent: October 1, 2019Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Yen-Ju Cheng, Yu-Chieh Pao, Shi-Yen Chen
-
Patent number: 10422761Abstract: A three dimensional electrical impedance tomographic method is disclosed. The three dimensional electrical impedance tomographic method includes steps of disposing an implantation body, wherein an electrode array formed by a plurality of electrodes is disposed on the implantation body; disposing an electrode controller to control any electrode in the electrode array; generating more independent voltage data measured on the plurality of electrodes on the same curve surface by combining current control technology or virtual electrode technology; and performing a calculation to convert the plurality of horizontal or vertical voltage data into a three dimensional electrical impedance tomographic image.Type: GrantFiled: May 18, 2016Date of Patent: September 24, 2019Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventor: Charles Tak Ming Choi
-
Patent number: 10418720Abstract: A signal line conversion structure of the antenna array is disposed between the antenna array and the circuit substrate, which includes a first dielectric substrate is disposed on the circuit substrate, a second dielectric substrate is vertically disposed on the first dielectric substrate and divided into a first region and a second region, and the second dielectric substrate is provided with the antenna array. At least one signal line is disposed on the first region and extends to the second dielectric substrate for connecting the circuit substrate and the antenna array. A metal connecting plate has at least three metal through holes pierced in the first dielectric substrate and connected to the second ground layer. The metal connecting plate is connected to the first ground layer of the first dielectric substrate and the second ground layer of the second dielectric substrate through the metal through holes.Type: GrantFiled: June 25, 2018Date of Patent: September 17, 2019Assignee: National Chiao Tung UniversityInventors: Jenn-Hwan Tarng, Chi-Yang Chang, Che-Hao Chang, Jing-Cheng Hong
-
Patent number: 10409056Abstract: An optical system for aberration compensation comprising an optical module and an asymmetric refractive index distribution film is disclosed. The asymmetric refractive index distribution film comprises a liquid crystal and a liquid crystalline polymer, wherein the asymmetric refractive index distribution film set on an out-light surface or an in-light surface of the optical module. A display system comprising the above-mentioned optical system and an image panel are also disclosed herein. The asymmetric refractive index distribution film of the present invention has non-uniform refractive index distribution so as to effectively compensate the aberration formed by the optical module.Type: GrantFiled: May 14, 2018Date of Patent: September 10, 2019Assignees: LIQXTAL TECHNOLOGY INC., NATIONAL CHIAO TUNG UNIVERSITYInventors: Hung-Shan Chen, Yi-Hsin Lin
-
Patent number: 10403002Abstract: A method for transforming between physical and virtual images includes: disposing an image capturing device at a position that does not coincide with line-of-sight of a user; providing at least three physical distance references on the line-of-sight of the user at different distances from the user, and capturing images of the at least three physical distance references by the image capturing device so as to obtain an epipolar line formed by at least three virtual distance references corresponding respectively to the images; and obtaining a first relation by a computing unit according to a position corresponding relationship between the at least three physical distance references and the at least three virtual distance references. By using the image capturing device that is at a fixed position relative to the user and does not coincide with the line-of-sight of the user, the physical position of an object is obtained.Type: GrantFiled: July 28, 2016Date of Patent: September 3, 2019Assignee: National Chiao Tung UniversityInventors: Jen-Hui Chuang, Yi-Yu Hsieh, Yu-Han Wei
-
Patent number: 10404036Abstract: A two-dimensional photonic crystal laser with transparent conductive cladding layer is provided. The two-dimensional photonic crystal region through the etching process is composed by multiple periodic air-holes with proper duty cycle. Then, the transparent conductive oxide layer is directly deposited on the top of the entire two-dimensional photonic crystal structure to cover the entire two-dimensional photonic crystal structure in order to form a current spreading layer. The configuration and the process condition of transparent conductive oxide layer are optimized to provide uniform current spreading path and the transparency. In addition to simplifying the whole fabrication process, the optical confinement is improved and the maximum gain to optical feedback is obtained. Overall, low threshold, small divergence angle and high quality laser output is achieved to satisfy the requirements for next-generation light sources.Type: GrantFiled: October 2, 2018Date of Patent: September 3, 2019Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Tien-Chang Lu, Kuo-Bin Hong, Shen-Che Huang
-
Patent number: 10401264Abstract: The present invention discloses an efficient electrostatic particle-into-liquid sampler (EPILS). The EPILS collects an aerosol sample in the dry mode and extracts it in the wet mode to prevent sampling artifacts. In the dry mode, a first stage utilizes carbon brushes as discharge electrodes to charge aerosol particles which are then collected on the cylinder wall by the electric field setup between the high-voltage central metal rod and the grounded cylinder in the second stage. In the wet mode, DI water is injected into the EPILS in a pulsation manner by opening and closing solenoid valves intermittently, which dislodges aerosol particles deposited on the cylinder wall effectively to become a liquid aerosol sample. The liquid aerosol sample is then analyzed for chemical compositions manually or automatically.Type: GrantFiled: August 8, 2017Date of Patent: September 3, 2019Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Chuen-Jinn Tsai, Chao-Ting Hsu
-
Patent number: 10390705Abstract: The present invention is directed to a device which includes the following features: a light source illuminates a target to generate an optical inspection signal; a probe head provides an optical path for the optical inspection signal; a probe tube arranged at a front end of the probe head; at least one switched filter module arranged in the optical path, allowing the optical inspection signal to pass therethrough to generate a corresponding spectral signal; and an image sensor arranged behind the switched filter module, receiving the spectral signal and generating a spectral image. The spectral image can be transmitted to an external device, wherefrom the user can use the spectral image to examine the target in further detail. The present invention features a rotary-type or movable-type switched filter module, which facilitates the user to switch filters easily during optical inspection.Type: GrantFiled: May 9, 2016Date of Patent: August 27, 2019Assignee: National Chiao Tung UniversityInventors: Mang Ou-Yang, Ting-Wei Huang, Chin-Siang Yang, Yao-Fang Hsieh, Sing-Tsung Li, Jin-Chern Chiou, Ming-Hsui Tsai, Jeng-Ren Duann, Yung-Jiun Lin, Shuen-De Wu, Yung-Jhe Yan, Zheng-Lin He
-
Patent number: 10395391Abstract: A camera principal point automatic calibration system including an image acquiring device, a controller, a first display and a second display is provided, wherein the controller controls the first and second display to display parallel first line and second line. The controller selectively rotates the first and second line according to whether a first and second image line generated by the image acquiring device corresponding to the first and second line are parallel or not, and the controller calculates the principal point from parallel first image line and second image line.Type: GrantFiled: August 24, 2018Date of Patent: August 27, 2019Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Jen-Hui Chuang, Yong-Sheng Chen, Mu-Tien Lu
-
Patent number: 10388031Abstract: A method for estimating epipolar geometry and to be performed by a processing module includes the steps of: A) choosing, in each first and third images captured by a first image capturing module, two points which are collinear with a corresponding one of a first reference object in the first image and a second reference object in the third image, such that in each second and fourth images captured by a second image capturing module, two points corresponding to the two points chosen in a respective one of the first and third images are collinear with a corresponding one of the first reference object in the second image and the second reference object in the fourth image; and B) determining first and second epipoles based on the aforementioned points.Type: GrantFiled: May 18, 2017Date of Patent: August 20, 2019Assignee: National Chiao Tung UniversityInventors: Jen-Hui Chuang, Yong-Sheng Chen, Mu-Tien Lu
-
Patent number: 10390312Abstract: A data driven management device of a small cell network is provided, wherein the device includes a data receiver, a data processor and a data configurator. The data receiver receives parameters configured and managed from each of small cells. The data processor is configured to pre-process the received parameters to remove the unnecessary parameters and to calculate at least one performance result based on the pre-processed parameters. The data processor is further configured to establish a model based on at least one of the pre-processed parameters. The data processor determines the optimized parameter based on the best performance result of the model to determine a decision result. The data configurator is connected to the data processor and configures and manages the small cells based on the decision result.Type: GrantFiled: May 2, 2018Date of Patent: August 20, 2019Assignee: National Chiao Tung UniversityInventors: Li-Chun Wang, Shao-Hung Cheng
-
Publication number: 20190246910Abstract: The present invention provides an imaging-type heart rate monitoring device and method thereof. It acquires the human image information tracks the target area in the human image information, and extracts the target image in the target area. It transforms the human image information through the first frequency domain transform. It filters the residual noise of the continuous wavelet transform information. It rebuilds the residual noise filtered information by the continuous wavelet transform. It transforms the continuous wavelet transform rebuilt information by the Fourier transform. It obtains a heart rate value through the second frequency domain transformed information.Type: ApplicationFiled: July 19, 2018Publication date: August 15, 2019Applicant: National Chiao Tung UniversityInventors: Bing-Fei Wu, Po-Wei Huang, Tsong-Yang Tsou, Tzu-Min Lin, Meng-Liang Chung
-
Publication number: 20190246917Abstract: The present invention provides an image based blood pressure monitoring method, comprising: acquiring at least a human image information of at least a human skin area; according to the human image information to locate at least a ROI; extracting the human image information of the ROI, and calculate; filtering the average value of the human image information; monitoring the filtered signal; calculating an image pulse transmit time of the filtered signal, and calculating an inter-beat interval of the filtered signal; and employ the specific prediction model, to calculate a systolic pressure value and a diastolic pressure value.Type: ApplicationFiled: July 20, 2018Publication date: August 15, 2019Applicant: National Chiao Tung UniversityInventors: Bing-Fei Wu, Po-Wei Huang, Chun-Hao Lin, Meng-Liang Chung, Tzu-Min Lin
-
Publication number: 20190246921Abstract: The present invention provides a contactless-type sport training monitor method, comprising: selecting at least an image database to recognize a plurality of expressions in the image database; making pre-processing for the plurality of expressions: using a convolutional neural network as a feature point extraction model; acquiring a human image; tracking a first target region and a second target region in the human image; making chrominance-based rPPG trace extraction; using the deep level model to compare the second target region image; and to calculate a post-exercise heart rate recovery achievement ratio, to judge the Rating of Perceived Exertion, and judging whether the human body is under overtraining status or not.Type: ApplicationFiled: July 20, 2018Publication date: August 15, 2019Applicant: National Chiao Tung UniversityInventors: Bing-Fei Wu, Chun-Hsien Lin, Po-Wei Huang, Tzu-Min Lin, Meng-Liang Chung
-
Patent number: 10381495Abstract: A photodetecting device and method of using the same are provided. The photodetecting device includes a transistor, a silicon nano-channel and a filter dye layer. The transistor includes a source, a drain and a gate. The silicon nano-channel connects the source and the drain, and is configured to receive light. The filter dye layer is over a light-receiving surface of the silicon nano-channel.Type: GrantFiled: December 3, 2015Date of Patent: August 13, 2019Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Yuh-Shyong Yang, Chien-Hung Chen, Chih-Heng Lin
-
Publication number: 20190242748Abstract: Disclosed is a resonant wavelength measurement apparatus, including a light source and a measurement unit. The measurement unit has a guided-mode resonance filter and a photosensitive element. The guided-mode resonance filter has a plurality of resonant areas, and each resonant area has a different filtering characteristic, to receive first light in the light source transmitted by a sensor or receive second light in the light source reflected by the sensor. The first light has a first corresponding pixel on the photosensitive element, the second light has a second corresponding pixel on the photosensitive element, and the first corresponding pixel and the second corresponding pixel correspond to a same resonant wavelength.Type: ApplicationFiled: April 24, 2018Publication date: August 8, 2019Applicant: NATIONAL CHIAO TUNG UNIVERSITYInventors: Cheng-Sheng HUANG, Chih-Wei CHANG, Shi-Ting CHEN
-
Publication number: 20190213301Abstract: A method for DNA sequence alignment is proposed to include steps of: generating multiple strings by acquiring foremost k number of suffixes corresponding to a reference DNA sequence; grouping the strings into multiple string groups; sorting the strings in each of the string groups to generate sorting results; obtaining sorted suffixes and a suffix array based on the sorting results; establishing FM-index data based on the sorted suffixes and the suffix array; and performing DNA sequence alignment on a target string based on the FM-index data to obtain an alignment result.Type: ApplicationFiled: July 19, 2018Publication date: July 11, 2019Applicants: National Chiao Tung University, National Taiwan UniversityInventors: Jui-Hung HUNG, Chia-Hsiang YANG, Yi-Chung WU