Patents Assigned to Leader Electronics
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Publication number: 20240121380Abstract: A resolution measurement method performed by a computer device for a camera comprises: generating a distortion map which represents a correspondence relation between coordinates of all pixels of a first test chart and coordinates of all pixels of the first test chart in an image captured by a camera which causes distortion in a photography field of view; generating, according to the correspondence relation represented by the distortion map, a distorted test chart which is a distorted image of a second test chart that is used for measuring resolution at a specific area in the first test chart in the captured image and performing, by using the distorted test chart, measurement of resolution according to a contrast method at a part, that corresponds to the specific area, in the photography field of view of the camera.Type: ApplicationFiled: February 10, 2021Publication date: April 11, 2024Applicant: Leader Electronics Corp.Inventor: Kouichi TODA
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Publication number: 20220394200Abstract: To generate training data based on normal content and anomalous content generated from the normal content. A training data generation method for generating training data used for generating a learned model for determining whether there is an anomaly in an inspection target, the training data generation method including: receiving normal content regarding the inspection target and anomalous content generated from the normal content; and generating training data based on a set of the normal content and one or more pieces of the anomalous content.Type: ApplicationFiled: September 17, 2020Publication date: December 8, 2022Applicant: Leader Electronics Corp.Inventor: Xiaodong WANG
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Patent number: 11355920Abstract: An improved electric circuit structure for short circuit protection is applicable to examining a device under test, comprising a circuit breaking element, a thermistor, a filtering and rectifying module and a capacitor. A first end of the circuit breaking element is connected to a power source. The filtering and rectifying module is connected to a second end of the circuit breaking element, a ground, a first end of the thermistor and a first end of the capacitor. A second end of the capacitor is connected to a second end of the thermistor. The capacitor is connected in parallel with the device under test. The circuit breaking element disclosed in the present invention is a ceramic tube fuse and forms an open circuit when the device under test forms a short circuit. Meanwhile, the ceramic tube fuse withstands voltage between its first and second end without generating any physical damage.Type: GrantFiled: July 21, 2020Date of Patent: June 7, 2022Assignee: Leader ElectronicsInventors: Shi-Guo Deng, Zuo-Quan Zhou, Jing Feng
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Patent number: 11108224Abstract: An improved electric circuit structure for short circuit protection is applicable to examining a device under test, comprising a circuit breaking element, a thermistor, a filtering and rectifying module and a capacitor. A first end of the circuit breaking element is electrically connected to a power source. A first end of the thermistor is electrically connected to a ground. The filtering and rectifying module is connected between the second end of the circuit breaking element and the second end of the thermistor. The capacitor is connected to the filtering and rectifying module and in parallel with the device under test. The circuit breaking element disclosed in the present invention is a multi-protector fuse and forms an open circuit when the device under test forms a short circuit. Meanwhile, the multi-protector fuse is able to withstand voltage between its first and second end without generating any physical damage.Type: GrantFiled: July 21, 2020Date of Patent: August 31, 2021Assignee: Leader Electronics Inc.Inventors: Shi-Guo Deng, Zuo-Quan Zhou, Jing Feng
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Patent number: 10496195Abstract: A touchpad device includes a touch module, communication unit, memory unit, and processing unit. The processing unit receives a touch input sensed by the touch module, performing touch operation detection, and sending one or more operation signals to a terminal device through the communication unit. The processing unit, when detecting a first touch operation occurs on a first mouse button region and ends, sends an operation signal including indication of continuous pressing of a virtual mouse button. The processing unit, when detecting a second touch operation is a sliding movement of a single touch point after the first touch operation ends, sends coordinates-related messages of the sliding movement. The processing unit, when detecting a third touch operation after the first touch operation ends, sends operation signals including a message indicating release of the virtual mouse button and a message indicating an instruction corresponding to the third touch operation.Type: GrantFiled: November 7, 2018Date of Patent: December 3, 2019Assignee: POLO-LEADER ELECTRONIC CO., LTD.Inventor: Wen-Chin Li
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Publication number: 20180122566Abstract: A transformer simulating circuit includes a primary side, a secondary side, a first coupling capacitor, and a second coupling capacitor. The primary side includes a primary core-loss resistor, a primary intra-winding capacitor, and a magnetizing inductor connected in parallel, and includes a primary leakage inductor module connected between a primary winding and the primary intra-winding capacitor, and a primary winding resistor connected to the primary leakage inductor module. The secondary side includes a secondary leakage inductor module connected between a secondary winding and a secondary intra-winding capacitor, and a secondary winding resistor connected to the secondary leakage inductor module. The first coupling capacitor and the second coupling capacitor are connected between the primary side and the secondary side. Therefore, a simulated frequency response of the transformer simulating circuit is closer to a measured frequency response of a real transformer.Type: ApplicationFiled: November 3, 2016Publication date: May 3, 2018Applicant: JIANGSU LEADER ELECTRONICS INC.Inventor: Rene Frederik KOCH
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Patent number: 9813699Abstract: A marker generating method is provided for facilitating the finding of positions which correspond to one another among a plurality of images associated with a video signal. A position within an image (800) associated with a video signal is selected, with a cursor (802, 804) to display a marker (812, 822-826) at a position corresponding to the selected position, in a different image (810, 820) associated with the video signal.Type: GrantFiled: May 18, 2012Date of Patent: November 7, 2017Assignee: Leader Electronics Corp.Inventors: Yuji Amino, Yoshihiro Sakamoto
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Patent number: 9538050Abstract: A jitter-associated data generator is provided for generating data associated with jitter. The jitter-associated data generator comprises a first circuit, a second circuit, and a third circuit. The first circuit generates an output including frequency components in a first frequency band common to first and second jitter, from a received digital input, as digital data associated with first jitter. The second circuit generates an output including frequency components in a second frequency band corresponding to the difference between the first and second jitter, from the received input, as differential digital data. The third circuit generates an output including frequency components in a third frequency band including the first and second frequency bands, from the received first jitter-associated digital data and differential digital data, as digital data associated with the second jitter.Type: GrantFiled: December 24, 2013Date of Patent: January 3, 2017Assignee: LEADER ELECTRONICS CORP.Inventor: Kensuke Yoshida
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Patent number: 9112326Abstract: A power adapter with a combinational plug has a plug assembly and a converter assembly. The converter assembly has two guide walls formed on a bottom surface thereof for a base of the plug assembly to be inserted therein, and at least one fixing member and a positioning boss formed on the base to engage at least one engagement slot and a positioning slot formed in the base. The base is mounted within the guide walls, the at least one fixing member engages the at least one engagement slot, and the positioning boss engages the positioning slot for the plug assembly and the converter assembly to be firmly combined. The locations of the positioning boss and the positioning slot are unique for each power adapter. Accordingly, a power adapter with low production cost and misuse protection can be provided.Type: GrantFiled: September 3, 2013Date of Patent: August 18, 2015Assignee: Leader Electronics Inc.Inventor: Feng-Rong Liu
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Publication number: 20150146013Abstract: A marker generating method is provided for facilitating the finding of positions which correspond to one another among a plurality of images associated with a video signal. A position within an image (800) associated with a video signal is selected, with a cursor (802, 804) to display a marker (812, 822-826) at a position corresponding to the selected position, in a different image (810, 820) associated with the video signal.Type: ApplicationFiled: May 18, 2012Publication date: May 28, 2015Applicant: Leader Electronics Corp.Inventors: Yuji Amino, Yoshihiro Sakamoto
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Publication number: 20150092456Abstract: A method for sensing an output current Iout of the fly-back converter has steps of sensing a voltage US of the switching node to obtain a time period TSW of a switching cycle of the fly-back converter and a time period TOFF of a OFF stage of the switching cycle; and then calculating the output current Iout according to a formula I out = k ? T OFF 2 T SW , wherein k is a predictable constant. By the method, a user just need to sense the voltage US of the switching node of the fly-back converter, and then the output current Iout of the fly-back converter is obtained by the formula without using a sensing resistor to sense any current in the fly-back converter.Type: ApplicationFiled: September 27, 2013Publication date: April 2, 2015Applicant: LEADER ELECTRONICS INC.Inventors: Rene Frederik KOCH, Sheng-Yu PAI, Hsi-Hung LU, Chin-Nan HSIA
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Publication number: 20150064955Abstract: A power adapter with a combinational plug has a plug assembly and a converter assembly. The converter assembly has two guide walls formed on a bottom surface thereof for a base of the plug assembly to be inserted therein, and at least one fixing member and a positioning boss formed on the base to engage at least one engagement slot and a positioning slot formed in the base. The base is mounted within the guide walls, the at least one fixing member engages the at least one engagement slot, and the positioning boss engages the positioning slot for the plug assembly and the converter assembly to be firmly combined. The locations of the positioning boss and the positioning slot are unique for each power adapter. Accordingly, a power adapter with low production cost and misuse protection can be provided.Type: ApplicationFiled: September 3, 2013Publication date: March 5, 2015Applicant: Leader Electronics Inc.Inventor: Feng-Rong Liu
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Patent number: 8786995Abstract: A surge current suppressing circuit is applied between an AC power and an electronic device that receives the AC power via a first AC power line and a second AC power line. The surge current suppressing circuit has a first input fuse connected to the first AC power line, and a first air-core inductor connected in series with the first input fuse on the first AC power line to suppress a surge current. Depending upon the practical applications, the surge current suppressing circuit can further have a second air-core inductor connected to the second AC power line, a capacitor connected between the two AC power lines or both.Type: GrantFiled: June 29, 2011Date of Patent: July 22, 2014Assignee: Leader Electronics Inc.Inventors: René Frederik Koch, Min-Ta Hsiao, Ming-Cheng Chuang
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Patent number: 8773067Abstract: A charging base has a bottom case, a printed circuit board (PCB) and a top case. The bottom case includes at least one drainage hole. The PCB is mounted in the bottom case and includes a mounting hole, a positioning block and charging terminals. The positioning block is attached to the PCB and has through holes. The charging terminals are secured to the positioning block and have apertures. The top case covers the bottom case and includes terminal holes and a top enclosed wall. The top enclosed wall is secured around the positioning block. Therefore, when water accidentally enters the charging base via the terminal holes, the water will sequentially flow through the apertures of the charging terminals, the through holes of the positioning block and the mounting hole of the PCB and subsequently drain out of the drainage hole of the bottom case.Type: GrantFiled: November 23, 2011Date of Patent: July 8, 2014Assignee: Leader Electronics Inc.Inventor: Kuan-Chih Chen
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Publication number: 20140184907Abstract: A jitter-associated data generator is provided for generating data associated with jitter. The jitter-associated data generator comprises a first circuit, a second circuit, and a third circuit. The first circuit generates an output including frequency components in a first frequency band common to first and second jitter, from a received digital input, as digital data associated with first jitter. The second circuit generates an output including frequency components in a second frequency band corresponding to the difference between the first and second jitter, from the received input, as differential digital data. The third circuit generates an output including frequency components in a third frequency band including the first and second frequency bands, from the received first jitter-associated digital data and differential digital data, as digital data associated with the second jitter.Type: ApplicationFiled: December 24, 2013Publication date: July 3, 2014Applicant: Leader Electronics Corp.Inventor: Kensuke Yoshida
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Patent number: 8414318Abstract: A power adapter with a rotatable plug module has a body, a circuit module and a plug module. The body has multiple fasteners and multiple clasps. The fasteners are arranged in a ring shape. Each of the clasps is formed on one side of each fastener and extends from the fasteners in the same orientation. The circuit module has a circuit board mounted in the body. The plus module has multiple conducting blades and multiple holes. The holes are engaged with the fasteners of the substrate when the plug module is rotated to correspond to the fasteners. The conducting blades are electrically connected to the circuit board. Because the plug module is rotatable and can be removed from the body, the power adapter with suitable conducting pins is available to various sockets.Type: GrantFiled: December 14, 2011Date of Patent: April 9, 2013Assignee: Leader Electronics Inc.Inventor: Shen-Liang Chen
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Patent number: 8279348Abstract: A display method and apparatus are provided for enabling a user, whether or not he has experience, to readily detect a luminance level of a video image with high accuracy. A luminance level of a video signal of a video image is converted to color information to display a change in the luminance of the video image as a change in color. The conversion preferably involves a method of converting the luminance level to color information of three primary colors, red, green, blue, in accordance with a plurality of weights, respectively, a method of converting a luminance level in a predetermined range to color information having a changing rate larger than a changing rate of the luminance level, a method of converting a luminance level out of the predetermined range to color information of a maximum or a minimum level, or the like. Also, the input video signal is preferably displayed together with a converted video image side by side or one on another.Type: GrantFiled: December 11, 2007Date of Patent: October 2, 2012Assignee: Leader Electronics CorporationInventors: Koji Yano, Genichi Imamura
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Patent number: 7946868Abstract: A power adapter having a replaceable and rotatable plug has a body having an annular chamber, two conducting elements inside the annular chamber, four channels recessed on a top thereof to communicate with the annular chamber, and an engagement slot abutting each of the four channels; and a hollow plug having two intermediate conducting elements, a cylinder protruding beyond a bottom of the plug and received in the annular chamber, four arced holes communicating with an inner portion of the plug, four engagement blocks protruding from a cylindrical periphery to respectively correspond to the four channels and four engagement slots, and at least two prongs mounted on a top thereof, one end of each of the two prongs penetrating through the plug to electrically connect with corresponding intermediate conducting elements. Given the aforementioned structure, the plug can be replaced and selectively oriented with respect to the body.Type: GrantFiled: November 19, 2009Date of Patent: May 24, 2011Assignee: Leader Electronics Inc.Inventor: Kuan-Chih Chen
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Patent number: D773326Type: GrantFiled: June 18, 2015Date of Patent: December 6, 2016Assignee: NINGBO JIANGBEI RUN LEADER ELECTRONICS CO., LTDInventor: Liu Lei
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Patent number: D773945Type: GrantFiled: July 7, 2015Date of Patent: December 13, 2016Assignee: NINGBO JIANGBEI RUN LEADER ELECTRONICS CO., LTDInventor: Liu Lei