Patents by Inventor Cheng-Kuei Chen
Cheng-Kuei 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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Patent number: 11983848Abstract: Aspects of the disclosure provide a frame processor for processing frames with aliasing artifacts. For example, the frame processor can include a super-resolution (SR) and anti-aliasing (AA) engine and an attention reference frame generator coupled to the SR and AA engine. The SR and AA engine can be configured to enhance resolution and remove aliasing artifacts of a frame to generate a first high-resolution frame with aliasing artifacts and a second high-resolution frame with aliasing artifacts removed. The attention reference frame generator can be configured to generate an attention reference frame based on the first high-resolution frame and the second high-resolution frame.Type: GrantFiled: January 6, 2023Date of Patent: May 14, 2024Assignee: MEDIATEK INC.Inventors: Cheng-Lung Jen, Pei-Kuei Tsung, Chih-Wei Chen, Yao-Sheng Wang, Shih-Che Chen, Yu-Sheng Lin, Chih-Wen Goo, Shih-Chin Lin, Tsung-Shian Huang, Ying-Chieh Chen
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Patent number: 7993018Abstract: A light amount adjusting component adapted a projection optical system is provided. The light amount adjusting component has a light incident surface upon which a light beam impinges, and the light incident surface is provided with a surface structure for irregularly dispersing the light beam. A slot that permits the light beam to pass therethrough and enter a light-receiving element is formed on the light amount adjusting component, and a width of the slot changes along an extension direction of the slot to allow control of the amount of the light beam entering the light-receiving element when the light amount adjusting component moves or rotates.Type: GrantFiled: February 11, 2009Date of Patent: August 9, 2011Assignee: Coretronic CorporationInventors: Cheng-Kuei Chen, Chia-Chi Chung
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Patent number: 7688479Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.Type: GrantFiled: December 29, 2006Date of Patent: March 30, 2010Inventors: Chih-Wen Huang, Cheng-Kuei Chen, Jen-Shou Tseng
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Publication number: 20090237626Abstract: A light amount adjusting component adapted a projection optical system is provided. The light amount adjusting component has a light incident surface upon which a light beam impinges, and the light incident surface is provided with a surface structure for irregularly dispersing the light beam. A slot that permits the light beam to pass therethrough and enter a light-receiving element is formed on the light amount adjusting component, and a width of the slot changes along an extension direction of the slot to allow control of the amount of the light beam entering the light-receiving element when the light amount adjusting component moves or rotates.Type: ApplicationFiled: February 11, 2009Publication date: September 24, 2009Inventors: Cheng-Kuei CHEN, Chia-Chi Chung
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Publication number: 20080198340Abstract: An imaging module includes a first housing, a projection lens, elastic members and lock members. The first housing has a first combination part having first lock holes. The projection lens has a lens barrel and at least one lens disposed inside the lens barrel. The lens barrel has a plurality of connection parts extending outward. Each connection part has a second lock hole. The elastic members are disposed between each connection part and the first combination part. Each elastic member has a first surface leant against the corresponding connection part and a second surface leant against the first combination part. The first surfaces form a first datum plane. The connection parts lean against the first datum plane. Each lock member is inserted into the corresponding second lock hole, the corresponding first lock hole and the elastic member between the corresponding second lock hole and first lock hole.Type: ApplicationFiled: August 27, 2007Publication date: August 21, 2008Applicant: CORETRONIC CORPORATIONInventors: Wen-Wei Tsai, Cheng-Kuei Chen
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Patent number: 7408180Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.Type: GrantFiled: December 29, 2006Date of Patent: August 5, 2008Assignee: Transpacific IP, Ltd.Inventors: Chih-Wen Huang, Cheng-Kuei Chen, Jen-Shou Tseng
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Patent number: 7273283Abstract: A method and apparatus for an anti-melt projection lens cap includes a sensor that detects whether the projection lens cap covers the projection lens and transmits a detected signal to the control unit including two control modes. The first one is projecting a dark image immediately, as the projection lens cap covers the projection lens for longer than a first set time, the control unit switches to a power-saving mode, when it lasts longer than a second set time, the lamp and the system power supply are turned off, then, a fan cools the lamp, the control unit switches to a standby mode. The second one is switching to the power-saving mode directly, when it lasts longer than a second set time, the lamp and the system power supply are turned off, and a fan cools the lamp, then, the control unit switches to the standby mode.Type: GrantFiled: January 7, 2005Date of Patent: September 25, 2007Assignee: Coretronic CorporationInventors: Wen-Wei Tsai, Chi-Neng Tseng, Cheng-Kuei Chen, Chih-Kun Yang
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Publication number: 20070159666Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.Type: ApplicationFiled: December 29, 2006Publication date: July 12, 2007Inventors: Chih-Wen Huang, Cheng-Kuei Chen, Jen-Shou Tseng
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Publication number: 20070152145Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.Type: ApplicationFiled: December 29, 2006Publication date: July 5, 2007Inventors: Chih-Wen Huang, Cheng-Kuei Chen, Jen-Shou Tseng
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Patent number: 7236272Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.Type: GrantFiled: August 3, 2001Date of Patent: June 26, 2007Assignee: Transpacific IP, Ltd.Inventors: Chih-Wen Huang, Cheng-Kuei Chen, Jen-Shou Tseng
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Publication number: 20070064284Abstract: A method for position restoration. By comparing the graphic data and the restored graphic data, the graphic data closest to the restored graphic data is selected. Therefore, the graphic data scanned subsequently is correctly connected to the restored graphic data to avoid the missing line or repetition of graphic data.Type: ApplicationFiled: August 18, 2006Publication date: March 22, 2007Inventors: Cheng-Kuei Chen, Chun-Hui Yu
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Publication number: 20060291007Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.Type: ApplicationFiled: August 29, 2006Publication date: December 28, 2006Inventors: Chih-Wen Huang, Cheng-Kuei Chen, Jen-Shou Tseng
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Patent number: 7136200Abstract: A method for position restoration. By comparing the graphic data and the restored graphic data, the graphic data closest to the restored graphic data is selected. Therefore, the graphic data scanned subsequently is correctly connected to the restored graphic data to avoid the missing line or repetition of graphic data.Type: GrantFiled: August 28, 2002Date of Patent: November 14, 2006Inventors: Cheng-Kuei Chen, Chu-Hui Yu
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Publication number: 20050151933Abstract: A method and apparatus for an anti-melt projection lens cap includes a sensor that detects whether the projection lens cap covers the projection lens and transmits a detected signal to the control unit including two control modes. The first one is projecting a dark image immediately, as the projection lens cap covers the projection lens for longer than a first set time, the control unit switches to a power-saving mode, when it lasts longer than a second set time, the lamp and the system power supply are turned off, then, a fan cools the lamp, the control unit switches to a standby mode. The second one is switching to the power-saving mode directly, when it lasts longer than a second set time, the lamp and the system power supply are turned off, and a fan cools the lamp, then, the control unit switches to the standby mode.Type: ApplicationFiled: January 7, 2005Publication date: July 14, 2005Inventors: Wen-Wei Tsai, Chi-Neng Tseng, Cheng-Kuei Chen, Chih-Kun Yang
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Publication number: 20050073662Abstract: A mirror holding apparatus, disposed in a chassis of a scanner, is disclosed. The mirror holding apparatus includes two opposite holding bases and more than one pair of holding plates, for holding the mirror and providing various angles or directions of inclination of the mirror. The pairs of holding plates are not parallel to any other. When the light reflected from the mirror on one pair of holding plates deviates from the original optical path. A substitute mirror hanging at the substitute pair of holding plate can be used to adjust the deviated optical path. Therefore, the wasting of material is avoided and the time and labor for producing a new holding base is saved.Type: ApplicationFiled: September 16, 2003Publication date: April 7, 2005Inventors: Cheng-Kuei Chen, Yin-Chan Huang
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Publication number: 20040201704Abstract: A vibration compensation device for an optical image scanner. The optical scanner has a platform for holding a scan document, an optical system and a light-sensing device. The compensation device includes a vibration sensor, a controller and an actuator. The vibration sensor mounts on the light-sensing device for detecting magnitude of vibration. The controller connects with the vibration sensor for measuring vibration in the light-sensing device and producing a corresponding actuator signal. The actuator links independently with the controller and the optical system for adjusting the optical system through the actuator according to the actuator signal so that the overall effects caused by vibration are reduced.Type: ApplicationFiled: August 3, 2001Publication date: October 14, 2004Inventors: Jen-Shou Tseng, Cheng-Kuei Chen
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Patent number: 6703604Abstract: A scanning method for detecting documents is provided an optical scanning device. The optical scanning device is capable of scanning an object by a reflective scanning mode or a transmittal scanning mode. Then obtaining an image signal of the object by either the reflective scanning mode or a transmittal scanning mode with the retrieved scanning mod. Comparing the image signal with a pre-determined signal will result in an implementation from one of the reflective scanning mode or the transmittal scanning mode.Type: GrantFiled: November 9, 2001Date of Patent: March 9, 2004Assignee: Umax Data Systems, Inc.Inventors: Jen-Shou Tseng, Cheng-Kuei Chen
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Publication number: 20040042051Abstract: A method for position restoration. By comparing the graphic data and the restored graphic data, the graphic data closest to the restored graphic data is selected. Therefore, the graphic data scanned subsequently is correctly connected to the restored graphic data to avoid the missing line or repetition of graphic data.Type: ApplicationFiled: August 28, 2002Publication date: March 4, 2004Inventors: Cheng-Kuei Chen, Chun-Hui Yu
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Publication number: 20030209661Abstract: A light-blocking structure on an optical lens mounting device for an optical scanning module. A circular flange is formed inside an engaging tube adjacent to one end of the optical lens for blocking any diffused light passing through the gap between the optical lens and the engaging tube so that an associated optical sensor may obtain a clearer image.Type: ApplicationFiled: May 9, 2002Publication date: November 13, 2003Inventors: Cheng-Kuei Chen, Chih-Chien Jen
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Publication number: 20030089840Abstract: A scanning method for detecting documents is provided an optical scanning device. The optical scanning device is capable of scanning an object by a reflective scanning mode or a transmittal scanning mode. Then obtaining an image signal of the object by either the reflective scanning mode or a transmittal scanning mode with the retrieved scanning mod. Comparing the image signal with a pre-determined signal will result in an implementation from one of the reflective scanning mode or the transmittal scanning mode.Type: ApplicationFiled: November 9, 2001Publication date: May 15, 2003Inventors: Jen-Shou Tseng, Cheng-Kuei Chen