Patents by Inventor Yan Chang
Yan Chang 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: 10983063Abstract: A biosensing system includes a biosensor, a light source, first and second photodetectors, and a calculator. The light source is disposed to irradiate the biosensor, so as to generate two or more of a coupled light beam, a reflected light beam, a transmitted light beam and a diffracted light beam. The first photodetector is disposed to measure an intensity of one of the generated light beams that is indicative of an effect of an analyte on light to obtain a first intensity value. The second photodetector is disposed to measure an intensity of another one of the generated light beams that is indicative of an effect of the analyte on light to obtain a second intensity value. The calculator performs compensation calculation based at least on the first and second intensity values.Type: GrantFiled: September 18, 2019Date of Patent: April 20, 2021Assignee: National Chung Cheng UniversityInventors: Wen-Hsin Hsieh, Hsun-Yuan Li, Yan-Chang Lee, Yu-Hsing Lai
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Publication number: 20200359787Abstract: Disclosed herein is a 31.75 mm (1.25?) system that represents a new and improved custom frameless cabinet design and manufacturing method specifically for the North American market where imperial measurement system is used. The system is based on the concept of worldwide prevailing 32 mm European frameless cabinet making system and uses all existing 32 mm system machinery and tools. By using ready-to-use panel parts and corner cabinets, this system greatly increases custom cabinetry's manufacturing efficiency and all but eliminates the conversion proximity and error when using standard European 32 mm system.Type: ApplicationFiled: July 30, 2020Publication date: November 19, 2020Inventor: Yan Chang
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Publication number: 20200340924Abstract: A biosensing system includes a biosensor, a light source, first and second photodetectors, and a calculator. The light source is disposed to irradiate the biosensor, so as to generate two or more of a coupled light beam, a reflected light beam, a transmitted light beam and a diffracted light beam. The first photodetector is disposed to measure an intensity of one of the generated light beams that is indicative of an effect of an analyte on light to obtain a first intensity value. The second photodetector is disposed to measure an intensity of another one of the generated light beams that is indicative of an effect of the analyte on light to obtain a second intensity value. The calculator performs compensation calculation based at least on the first and second intensity values.Type: ApplicationFiled: September 18, 2019Publication date: October 29, 2020Inventors: Wen-Hsin HSIEH, Hsun-Yuan LI, Yan-Chang LEE, Yu-Hsing LAI
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Patent number: 10798288Abstract: A multi-camera electronic device and a control method thereof are proposed. The method includes the following steps. At least one camera of the electronic device is used for scene detection to generate photographing analysis information. All the photographing analysis information is collected, and joint photographing information including a joint target is generated through a communication process among all the cameras. An individual photographing parameter of each camera is generated according to the joint photographing information. Each camera is controlled to capture an image of the scene by using its individual photographing parameter to respectively generate a corresponding output image.Type: GrantFiled: October 18, 2016Date of Patent: October 6, 2020Assignee: Altek Semiconductor Corp.Inventors: Hong-Long Chou, Shih-Yuan Peng, Hsin-Te Wang, Kai-Yu Tseng, Wen-Yan Chang
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Publication number: 20200191972Abstract: In one embodiment, example systems and methods related to a manner of optimizing LiDAR sensor placement on autonomous vehicles are provided. A range-of-interest is defined for the autonomous vehicle that includes the distances from which the autonomous vehicle is interested in collecting sensor data. The range-of-interest is segmented into multiple cubes of the same size. For each LiDAR sensor, a shape is determined based on information such as the number of lasers in each LiDAR sensor and the angle associated with each laser. An optimization problem is solved using the determined shape for each LiDAR sensor and the cubes of the range-of-interest to determine the locations to place each LiDAR sensor to maximize the number of cubes that are captured. The optimization problem may further determine the optimal pitch angle and roll angle to use for each LiDAR sensor to maximize the number of cubes that are captured.Type: ApplicationFiled: April 3, 2019Publication date: June 18, 2020Inventors: Ding Zhao, Senyu Mou, Yan Chang, Wenshuo Wang
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Publication number: 20200059637Abstract: A three-dimensional sensing apparatus including a light-projecting device, at least two image-capture devices, and a processor is provided. The processor is electrically connected to the light-projecting device and the at least two image-capture devices and adapted to provide a control signal to the light-projecting device to adjust the intensity of the illumination beam. The processor adjusts the contrast of the captured image to form a contrast-enhanced image according to a first processing signal and extracts a feature region of the contrast-enhanced image to form a feature-extraction image according to a second processing signal. The processor normalizes the intensity of the feature-extraction image to form an optimized image according to a third processing signal and forms the optimized image into a depth image according to a sensing signal.Type: ApplicationFiled: July 9, 2019Publication date: February 20, 2020Applicant: Altek Semiconductor Corp.Inventors: Hong-Long Chou, Jye-Sheng Lin, Wen-Yan Chang
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Publication number: 20190339842Abstract: An icon display structure includes a display panel including a silkscreen interlayer, a diffusion sheet, and a light source. The diffusion sheet includes a light transmission zone. The silkscreen interlayer includes a silkscreen icon and defines a hollow icon. The silkscreen icon is aligned with the hollow icon and appears directly on the display panel. The light transmission zone of the diffusion sheet is aligned with the silkscreen icon and the hollow icon. The light source is positioned behind the diffusion sheet. The light source emits light and the light transmits through the light transmission zone and the hollow icon to light up the silkscreen icon on the display panel.Type: ApplicationFiled: December 3, 2018Publication date: November 7, 2019Inventors: CHUN-KAI PENG, WEI-CHIEN HSU, YING-CHIA TANG, YING-WEI SHENG, CHIA-WEI LIU, YAN-CHANG HE
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Publication number: 20190242607Abstract: An air purification device includes a housing, an air quality sensor, an LED light group, and a controller. The air quality sensor is mounted within the housing and detects air quality parameters in real time. The LED light group is mounted within the housing and includes at least one LED light. The controller is mounted within the housing and controls the at least one LED light of the LED light group to emit light of a corresponding color according to the air quality parameters. The emitted light corresponds in color to indicate an air quality.Type: ApplicationFiled: November 29, 2018Publication date: August 8, 2019Inventors: CHUN-KAI PENG, WEI-CHIEN HSU, YING-CHIA TANG, YING-WEI SHENG, CHIA-WEI LIU, YAN-CHANG HE
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Patent number: 10235773Abstract: An image capture device and a calibration method of phase detection autofocus thereof are provided. A contrast-based autofocus procedure is executed to move a lens to multiple lens positions, and a statistical distribution of focus values is obtained based on the contrast-based autofocus procedure. Whether the phase linear relationship for a phase detection autofocus procedure is calibrated is determined according to the statistical distribution of the focus values. If yes, then a first phase difference detected when the lens is located at one of the lens positions is obtained, and a second phase difference detected when the lens is located at another one of the lens positions is obtained. The phase linear relationship of the phase detection autofocus procedure is calibrated according to the one of the lens positions, the first phase difference, the other one of the lens positions, and the second phase difference.Type: GrantFiled: April 18, 2017Date of Patent: March 19, 2019Assignee: Altek Semiconductor Corp.Inventors: Yun-Chin Li, Chia-Chun Tseng, Wen-Yan Chang
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Patent number: 10165248Abstract: An optimization method of image depth information and an image processing apparatus are provided. A to-be-repaired depth map generated based on a left image and a right image is obtained. A superpixel segmenting process is performed on the left image or the right image to obtain multiple superpixels. A plurality of image segments are obtained by aggregating the superpixels according to pixel information in the superpixels. A hole filling process is performed on holes of the to-be-repaired depth map to obtain a hole-filled depth map. A statistical analysis is performed on first valid depth values of the to-be-repaired depth map and second valid depth values of the hole-filled depth map to obtain a plurality of optimized depth values by using the ranges of the image segments, the ranges of the superpixels, the to-be-repaired depth map, and the hole-filled depth map.Type: GrantFiled: January 18, 2017Date of Patent: December 25, 2018Assignee: Altek Semiconductor Corp.Inventors: Shuo-Tse Hung, Yun-Chin Li, Wen-Yan Chang
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Publication number: 20180183991Abstract: An image capture device and a calibration method of phase detection autofocus thereof are provided. A contrast-based autofocus procedure is executed to move a lens to multiple lens positions, and a statistical distribution of focus values is obtained based on the contrast-based autofocus procedure. Whether the phase linear relationship for a phase detection autofocus procedure is calibrated is determined according to the statistical distribution of the focus values. If yes, then a first phase difference detected when the lens is located at one of the lens positions is obtained, and a second phase difference detected when the lens is located at another one of the lens positions is obtained. The phase linear relationship of the phase detection autofocus procedure is calibrated according to the one of the lens positions, the first phase difference, the other one of the lens positions, and the second phase difference.Type: ApplicationFiled: April 18, 2017Publication date: June 28, 2018Applicant: Altek Semiconductor Corp.Inventors: Yun-Chin Li, Chia-Chun Tseng, Wen-Yan Chang
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Publication number: 20180115763Abstract: An optimization method of image depth information and an image processing apparatus are provided. A to-be-repaired depth map generated based on a left image and a right image is obtained. A superpixel segmenting process is performed on the left image or the right image to obtain multiple superpixels. A plurality of image segments are obtained by aggregating the superpixels according to pixel information in the superpixels. A hole filling process is performed on holes of the to-be-repaired depth map to obtain a hole-filled depth map. A statistical analysis is performed on first valid depth values of the to-be-repaired depth map and second valid depth values of the hole-filled depth map to obtain a plurality of optimized depth values by using the ranges of the image segments, the ranges of the superpixels, the to-be-repaired depth map, and the hole-filled depth map.Type: ApplicationFiled: January 18, 2017Publication date: April 26, 2018Applicant: Altek Semiconductor Corp.Inventors: Shuo-Tse Hung, Yun-Chin Li, Wen-Yan Chang
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Publication number: 20170272644Abstract: A multi-camera electronic device and a control method thereof are proposed. The method includes the following steps. At least one camera of the electronic device is used for scene detection to generate photographing analysis information. All the photographing analysis information is collected, and joint photographing information including a joint target is generated through a communication process among all the cameras. An individual photographing parameter of each camera is generated according to the joint photographing information. Each camera is controlled to capture an image of the scene by using its individual photographing parameter to respectively generate a corresponding output image.Type: ApplicationFiled: October 18, 2016Publication date: September 21, 2017Applicant: Altek Semiconductor Corp.Inventors: Hong-Long Chou, Shih-Yuan Peng, Hsin-Te Wang, Kai-Yu Tseng, Wen-Yan Chang
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Patent number: 9747694Abstract: Method and apparatus for optimizing depth information are provided. One of a left image and a right image is divided into a plurality of segmentations for obtaining a plurality of segmentation maps. A necessary repair depth map is obtained, and the necessary repair depth map is partitioned into a plurality of depth planes according to a plurality of primary depth values and a camera parameter. The primary depth values are recorded in the necessary repair depth map having a plurality of holes. A plurality of optimized depth values are respectively generated for the holes in each of the depth planes by using the segmentation maps, and the optimized depth values are filled into the depth planes to obtain an optimized depth map.Type: GrantFiled: June 16, 2014Date of Patent: August 29, 2017Assignee: Altek Semiconductor Corp.Inventors: Yu-Chia Chung, Wen-Yan Chang, Chia-Chun Tseng, Yun-Chin Lee
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Patent number: 9661305Abstract: An image capture device, a depth generating device and a method thereof are disclosed. The present disclosure is characterized in that a depth calculation technology with a structure light projection and a pictorial depth calculation technology are combined to better both of resolution and accuracy of the calculated image depth. In addition, the utilization of a modified flashlight enables the combination of the two technologies to be applied to a hand-held capture device.Type: GrantFiled: May 30, 2014Date of Patent: May 23, 2017Assignee: Altek Semiconductor CorporationInventors: Hong-Long Chou, Wen-Yan Chang, Yu-Chih Wang
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Patent number: 9548771Abstract: Embodiments of the present invention provide a method and an apparatus for eliminating interference among transmission channels of a transmitter. The method includes: generating a compensation parameter according to an output signal of an analog module on a transmission channel to be processed by the transmitter and an input signal of a digital module on each transmission channel among all transmission channels of the transmitter; generating a cancellation signal according to the compensation parameter and an input or output signal of a digital module on another transmission channel except for the transmission channel to be processed; and performing, according to the cancellation signal, interference elimination processing on the transmission channel to be processed. The method and apparatus according to the embodiments of the present invention avoid an increase of a transmitter product size, and improve an effect of eliminating interference among transmission channels.Type: GrantFiled: June 9, 2015Date of Patent: January 17, 2017Assignee: Huawei Technologies Co., Ltd.Inventors: Xingwen Li, Siqing Ye, Yongsheng Wang, Yan Chang
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Publication number: 20160346317Abstract: The present invention is directed to methods and compositions for augmenting treatment of cancers and other proliferative disorders. In particular embodiments, the invention combines the administration of an agent that inhibits the anti-apoptotic activity of galectin-3 (e.g., a “galectin-3 inhibitor”) so as to potentiate the toxicity of a chemotherapeutic agent. In certain preferred embodiments, the conjoint therapies of the present invention can be used to improve the efficacy of those chemotherapeutic agents whose cytotoxicity is influenced by the status of an anti-apoptotic Bcl-2 protein for the treated cell. For instance, galectin-3 inhibitors can be administered in combination with a chemotherapeutic agent that interferes with DNA replication fidelity or cell-cycle progression of cells undergoing unwanted proliferation.Type: ApplicationFiled: February 26, 2016Publication date: December 1, 2016Inventors: Yan Chang, Vodek Sasak
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Patent number: 9386229Abstract: An image processing system and a method for object-tracing are provided. The method includes: receiving a first wide field of view image and a first narrow field of view image, and determining a to-be-traced object therefrom and choosing one image therefrom for serving as a first output image; using an area size of the to-be-traced object in the first output image as a reference area; comparing the reference area with the area sizes of the to-be-traced object from a second wide field of view image and a second narrow field of view image respectively so as to determine one of that as a main image, and respectively zooming and deforming the main image and an area corresponding to the other image, and then fusing a zoomed and deformed second image as a second output image.Type: GrantFiled: November 24, 2014Date of Patent: July 5, 2016Assignee: ALTEK SEMICONDUCTOR CORPORATIONInventors: Wen-Yan Chang, Hong-Long Chou, Yi-Hong Tseng, Tsan-Wei Wang, Che-Lun Chuang
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Publication number: 20160142627Abstract: An image capturing device and a digital zooming method thereof are proposed in the invention. The method includes the following steps. A scene is captured by a primary lens and a secondary lens to generate a primary image and a secondary image. Image rectification is then performed on the primary and the secondary images to obtain two corresponding rectified images. Feature points detected and matched from the two rectified images are used to determine a corresponding overlapping region, respectively. Pixel displacement and depth map in the two overlapping regions could be calculated and estimated. Image zooming and warping techniques are performed on the two rectified images to obtain corresponding warped images using a recalculated homography matrix according to each specific zooming factor. Finally, the two overlapping regions in the warped image are fused by a weighted blending approach to generate a digital zoomed image.Type: ApplicationFiled: December 15, 2014Publication date: May 19, 2016Inventors: Hong-Long Chou, Yi-Hong Tseng, Wen-Yan Chang, Yu-Chih Wang, Tsan-Wei Wang, Yi-Yi Yu
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Patent number: 9342875Abstract: An image capturing device and a method for generating a bokeh effect are provided. The method includes the following steps. An image including a current input pixel is captured. Next, blurring processes are performed on the image by using a first image blur filter and a second image blur filter so as to generate a plurality of first blur images and second blur images corresponding to different blur levels. A distance between the current input pixel and a focal plane is calculated to obtain a current distance. A first current blur image and a second current blur image are respectively selected from the first blur images and the second blur images according to the current distance. Next, a first current blur pixel of the first current blur image and a second current blur pixel of the second current blur image are combined to generate a current output pixel.Type: GrantFiled: November 25, 2014Date of Patent: May 17, 2016Assignee: Altek Semiconductor Corp.Inventors: Su Ian Alias Eugene Lei, Kaiyu Tseng, Wen-Yan Chang