Patents by Inventor Shing-Chia Chen
Shing-Chia 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: 10775920Abstract: A driving method of a touch display panel includes: selectively operating in a display mode and a touch detecting mode; when operating in the display mode during a first frame period, processing a first frame to generate an image processing indicator of a second frame for indicating an image processing level of the second frame; when operating in the touch detecting mode during the first frame period, generating a control signal when a touch is detected; wherein when the control signal is generated, processing the second frame according to an image processing indicator of the first frame for indicating an image processing level of the first frame when operating in the display mode during a second frame period, instead of using the image processing indicator of the second frame.Type: GrantFiled: March 23, 2016Date of Patent: September 15, 2020Assignee: HIMAX TECHNOLOGIES LIMITEDInventors: Shing-Chia Chen, Yi-Long Yang
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Patent number: 10417475Abstract: The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.Type: GrantFiled: May 17, 2019Date of Patent: September 17, 2019Assignee: HIMAX TECHNOLOGIES LIMITEDInventors: Shing-Chia Chen, Yaw-Guang Chang, Wei-Ting Suen
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Publication number: 20190272406Abstract: The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.Type: ApplicationFiled: May 17, 2019Publication date: September 5, 2019Inventors: Shing-Chia CHEN, Yaw-Guang CHANG, Wei-Ting SUEN
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Patent number: 10339355Abstract: The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.Type: GrantFiled: March 12, 2017Date of Patent: July 2, 2019Assignee: HIMAX TECHNOLOGIES LIMITEDInventors: Shing-Chia Chen, Yaw-Guang Chang, Wei-Ting Suen
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Publication number: 20180260599Abstract: The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.Type: ApplicationFiled: March 12, 2017Publication date: September 13, 2018Inventors: Shing-Chia CHEN, Yaw-Guang CHANG, Wei-Ting SUEN
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Publication number: 20170277331Abstract: A driving method of a touch display panel includes: selectively operating in a display mode and a touch detecting mode; when operating in the display mode during a first frame period, processing a first frame to generate an image processing indicator of a second frame for indicating an image processing level of the second frame; when operating in the touch detecting mode during the first frame period, generating a control signal when a touch is detected; wherein when the control signal is generated, processing the second frame according to an image processing indicator of the first frame for indicating an image processing level of the first frame when operating in the display mode during a second frame period, instead of using the image processing indicator of the second frame.Type: ApplicationFiled: March 23, 2016Publication date: September 28, 2017Inventors: Shing-Chia Chen, Yi-Long Yang
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Patent number: 9723563Abstract: A method of waking up a device includes capturing an image by scanning a fingerprint pattern in a sleep mode; analyzing the captured image representing the scanned fingerprint pattern to obtain an amount of pixels in the captured image with respect to each brightness value; transforming the analyzed captured image into brightness distribution; operating the brightness distribution to obtain a feature value; and comparing the feature value with a pre-stored value, the device being woken up when the feature value is matched with the pre-stored value.Type: GrantFiled: March 24, 2016Date of Patent: August 1, 2017Assignee: Himax Technologies LimitedInventors: Shing-Chia Chen, Yi-Long Yang, Yaw-Guang Chang
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Patent number: 9291750Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.Type: GrantFiled: May 22, 2014Date of Patent: March 22, 2016Assignee: LARGAN PRECISION CO., LTD.Inventors: En Ping Lin, Shing Chia Chen, Min Che Li
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Patent number: 9106901Abstract: An imagery axle turning method for stereo vision and an apparatus thereof. The method turns an imagery axle of a stereo vision apparatus to capture images, and constructs a 3D image from the captured 2D images. The imagery axle turning method is realized by rotating the imagery axles of the first lens unit and second lens unit to an angle ?, so as to have different aspect ratios for the first image and second image. Thereby, the 3D image formed from the stereo vision reconstruction steps can achieve a user's expectation of capturing images with an appropriate aspect ratio. This invention also provides specific stereo vision apparatus corresponding to various applications by the imagery axle turning method.Type: GrantFiled: August 26, 2011Date of Patent: August 11, 2015Assignee: Largan Precision Co., Ltd.Inventors: Shing-Chia Chen, Min-Che Li, Huang-Long Lin
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Patent number: 8908014Abstract: The present invention provides an optical imaging lens system with double optical paths, comprising: the first optical subsystem; the second optical subsystem having a back focal length equal to that of the first optical subsystem; an optical path selector selectively having a light reflection state or a light passing state; the first reflector set disposed at an image side of the first optical subsystem for directing light from the first optical subsystem to the optical path selector; and the second reflector set disposed at an image side of the second optical subsystem for directing light from the second optical subsystem to the optical path selector. In the present invention, the optical path selector can be controlled to have the light reflection state or the light passing state selectively, so that an image coming from the first optical subsystem or from the second optical subsystem is captured.Type: GrantFiled: January 19, 2011Date of Patent: December 9, 2014Assignee: Largan Precision Co., Ltd.Inventors: Yen Ting Yeh, Min Che Li, Shing Chia Chen
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Publication number: 20140253739Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.Type: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicant: LARGAN PRECISION CO., LTD.Inventors: En Ping Lin, Shing Chia Chen, Min Che Li
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Patent number: 8773538Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.Type: GrantFiled: April 5, 2011Date of Patent: July 8, 2014Assignee: Largan Precision Co., Ltd.Inventors: En Ping Lin, Shing Chia Chen, Min Che Li
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Patent number: 8457398Abstract: An image enhancement apparatus is provided. The image enhancement apparatus includes a global contrast curve generator, a local contrast curve generator and an image generator. The global contrast curve generator generates a global contrast curve for an input image according to a global histogram of the input image. The local contrast curve generator generates a local contrast curve for each image partition within the input image according to the global contrast curve and further a feature of the image partition. The image generator generates an output image by enhancing a contrast of each image partition according to the local contrast curve for the image partition and the input image, and merging the enhanced image partitions.Type: GrantFiled: October 27, 2009Date of Patent: June 4, 2013Assignee: Himax Media Solutions, Inc.Inventors: Wei-Ting Suen, Shing-Chia Chen
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Patent number: 8334834Abstract: A backlight control system and method are disclosed. An overdrive device modifies a backlight duty signal according to a current-frame backlight duty signal and a previous-frame backlight duty signal. In one embodiment, the overdrive device is implemented with a lookup table that outputs the modified backlight duty signal. The backlight driven by the modified backlight duty signal then emits light to a display panel, thereby increasing a response time of the backlight.Type: GrantFiled: September 30, 2008Date of Patent: December 18, 2012Assignee: Himax Media Solutions, Inc.Inventor: Shing-Chia Chen
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Patent number: 8289265Abstract: A backlight controller, a display device using the same and a method for controlling a backlight module are provided. The backlight controller includes a temporal weighting module and a dimming controlling module. The temporal weighting module calculates a weight sum of a first backlight luminance provided in a current frame and a target backlight luminance to serve as an adjusted backlight luminance. The target backlight luminance is obtained according to an image content of the current frame. The dimming controlling module increases or decreases the adjusted backlight luminance by a step value according to the target backlight luminance and generates a second backlight luminance provided in a next frame. Therefore, a backlight luminance of the backlight module not only can be smoothly adjusted to the target backlight luminance at high speed for avoiding backlight flicker, but also can be adaptive to image content for saving electric power consumption.Type: GrantFiled: July 15, 2008Date of Patent: October 16, 2012Assignees: Himax Technologies Limited, Himax Media Solutions, Inc.Inventors: Kuo-Liang Shen, Chien-Chung Chen, Shing-Chia Chen
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Patent number: 8285071Abstract: The present invention is directed to a digital image content-adaptive contrast improving method. The method includes forming a piecewise linear tone remapping function for a digital image according to the histogram thereof. The piecewise linear tone remapping function is formed by repeatedly performing a first and a second step. The first step determines a starting linear tone mapping function for a specific range of luminance values. The second step generates a new tone mapping function for the specific range of luminance values based on the starting linear tone mapping function and the histogram. An apparatus for implementing the method is also provided.Type: GrantFiled: September 10, 2007Date of Patent: October 9, 2012Assignee: Himax Technologies LimitedInventors: Shing-Chia Chen, Ling-Shiou Huang
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Patent number: 8280184Abstract: An image enhancement apparatus is provided. The image enhancement apparatus includes a global tone mapping curve generator, a local tone mapping curve generator, a reference gamma voltage generator and an image generator. The global tone mapping curve generator generates a global tone mapping curve for an input image according to global characteristic(s) of the input image. The local tone mapping curve generator generates a local tone mapping curve for each image partition within the input image according to the global tone mapping curve and further a feature of the image partition. The reference gamma voltage generator generates a plurality of reference gamma voltages for each image partition according to the corresponding local tone mapping curve for the image partition. The image generator generates an output image according to the reference gamma voltages of the image partitions and the input image.Type: GrantFiled: April 1, 2010Date of Patent: October 2, 2012Assignee: Himax Media Solutions, Inc.Inventors: Shing-Chia Chen, Biing-Seng Wu, Lin-Kai Bu, Kuei-Hsiang Chen
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Publication number: 20120212584Abstract: An imagery axle turning method for stereo vision and an apparatus thereof. The method turns an imagery axle of a stereo vision apparatus to capture images, and constructs a 3D image from the captured 2D images. The imagery axle turning method is realized by rotating the imagery axles of the first lens unit and second lens unit to an angle ?, so as to have different aspect ratios for the first image and second image. Thereby, the 3D image formed from the stereo vision reconstruction steps can achieve a user's expectation of capturing images with an appropriate aspect ratio. This invention also provides specific stereo vision apparatus corresponding to various applications by the imagery axle turning method.Type: ApplicationFiled: August 26, 2011Publication date: August 23, 2012Applicant: LARGAN PRECISION CO.Inventors: Shing-Chia Chen, Min-Che Li, Huang-Long Lin
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Patent number: 8218894Abstract: A system and method of contrast enhancement is disclosed. A contrast enhancement unit processes an input pixel to generate a contrast-enhanced pixel, and a delta unit subtracts the input pixel from the contrast-enhanced pixel, thereby resulting in a difference value. Multiple delayed difference values generated by a delay unit are low-pass filtered to generate a refined difference value. An adding unit adds back the refined difference value to the input pixel, thereby resulting in an output pixel that is contrast-enhanced without noise boost.Type: GrantFiled: September 10, 2009Date of Patent: July 10, 2012Assignee: Himax Media Solutions, Inc.Inventor: Shing-Chia Chen
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Publication number: 20120162196Abstract: This invention provides a stereo display device for displaying left and right frames alternately with an adjusted disparity in between, comprising: a distance measurement module configured to measure the distance between the stereo display device and a viewer; and an adjustment module configured to receive left and right frames with an original disparity in between, adjust the original disparity between left and right frames according to the distance between the stereo display device and the viewer, and output left and right frames having an adjusted disparity in between.Type: ApplicationFiled: April 22, 2011Publication date: June 28, 2012Applicant: LARGAN PRECISION CO., LTD.Inventor: Shing Chia Chen