Patents by Inventor Te-Hao Chang

Te-Hao 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).

  • Patent number: 11962847
    Abstract: A channel hiatus correction method for an HDMI device is provided. A recovery code from scrambled data of the stream is obtained. A liner feedback shift register (LFSR) value of channels of the HDMI port is obtained based on the recovery code and the scrambled data of the stream. The stream is de-scrambled according to the LFSR value of the channels of the HDMI port. Video data is displayed according to the de-scrambled stream.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: April 16, 2024
    Assignee: MEDIATEK INC.
    Inventors: Chia-Hao Chang, You-Tsai Jeng, Kai-Wen Yeh, Yi-Cheng Chen, Te-Chuan Wang, Kai-Wen Cheng, Chin-Lung Lin, Tai-Lai Tung, Ko-Yin Lai
  • Publication number: 20240100880
    Abstract: A multi-piece wheel frame includes a rim and a disc. The rim includes a barrel, and an outer rim portion protruding outwardly from the barrel. The outer rim portion forms an inclined surface, and a ring edge surface connected to an outer edge of the inclined surface and cooperating with the inclined surface to form an obtuse angle. The disc is fixed to the rim, and includes a disc core, a plurality of spoke portions extending radially outwardly from the disc core, and a reinforced ring portion connected to the spoke portions and fixed to the outer rim portion. The reinforced ring portion abuts against at least one of the inclined surface and the ring edge surface.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 28, 2024
    Inventors: Te-Fu HSIAO, Che-Hao KUO, Chung-Hsin CHANG, Chia-Hsin WANG, Erh-Wei LIU
  • Patent number: 11778322
    Abstract: An electronic image stabilization (EIS) method includes: obtaining video frames derived from an output of an image sensor, wherein each of the video frames has a full field of view (FOV) of the image sensor; obtaining motion information of the video frames; dynamically estimating, by a processing circuit, EIS margins according to FOV variation of a plurality of cropped images within the video frames respectively; and applying stabilization correction to the cropped images according to the motion information and the EIS margins, to generate a plurality of stabilized images.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: October 3, 2023
    Assignee: MEDIATEK INC.
    Inventors: Hsiao-Wei Chen, Meng-Hung Cho, Yu-Chun Chen, Shu-Fan Wang, Te-Hao Chang, Ying-Jui Chen
  • Patent number: 11570381
    Abstract: A processor or control circuit of an apparatus receives data of an image based on sensing by one or more image sensors. The processor or control circuit also detects a region of interest (ROI) in the image. The processor or control circuit then adaptively controls a light projector with respect to projecting light toward the ROI.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: January 31, 2023
    Inventors: Te-Hao Chang, Chi-Hui Wang, Chi-Cheng Ju, Ying-Jui Chen, Chun-Nan Li
  • Publication number: 20220053134
    Abstract: An electronic image stabilization (EIS) method includes: obtaining video frames derived from an output of an image sensor, wherein each of the video frames has a full field of view (FOV) of the image sensor; obtaining motion information of the video frames; dynamically estimating, by a processing circuit, EIS margins according to FOV variation of a plurality of cropped images within the video frames respectively; and applying stabilization correction to the cropped images according to the motion information and the EIS margins, to generate a plurality of stabilized images.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 17, 2022
    Applicant: MEDIATEK INC.
    Inventors: Hsiao-Wei Chen, Meng-Hung Cho, Yu-Chun Chen, Shu-Fan Wang, Te-Hao Chang, Ying-Jui Chen
  • Publication number: 20210352227
    Abstract: Various examples with respect to adaptive infrared (IR) projection control for depth estimation in computer vision are described. A processor or control circuit of an apparatus receives data of an image based on sensing by one or more image sensors. The processor or control circuit also detects a region of interest (ROI) in the image. The processor or control circuit then adaptively controls a light projector with respect to projecting light toward the ROI.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Inventors: Te-Hao Chang, Chi-Hui Wang, Chi-Cheng Ju, Ying-Jui Chen, Chun-Nan Li
  • Patent number: 11172145
    Abstract: A camera device is provided. The camera device includes: a first imaging section, a second imaging section, a third imaging section, and a processor. The first imaging section, second imaging section, and third imaging section capture a first image, a second image, and a third image of a scene with a first field of view (FOV), a second FOV, and a third FOV. The processor is configured to generate a first output image by performing a first image-fusion process on at least two of the first image, the second image, and the third image in response to a zooming factor of the camera device being between a first zooming factor and a second zooming factor, wherein the first FOV is wider than the second FOV, and the second FOV is wider than the third FOV, and the second zooming factor is greater than the first zooming factor.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: November 9, 2021
    Assignee: MEDIATEK INC.
    Inventors: Ping-Han Lee, Te-Hao Chang
  • Publication number: 20210255327
    Abstract: Various examples pertaining to emission and reception of patterned light waves for range sensing are described. An apparatus emits a light having a spatial pattern toward a scene. The apparatus performs range sensing of the scene using a hybrid of techniques based on a plurality of effects caused by the emitting of the light. The plurality of techniques include two or more active depth sensing techniques or a passive depth sensing technique and at least one active depth sensing technique.
    Type: Application
    Filed: February 17, 2020
    Publication date: August 19, 2021
    Inventors: Chao-Chung Cheng, Te-Hao Chang, Ying-Jui Chen
  • Publication number: 20200358965
    Abstract: A camera device is provided. The camera device includes: a first imaging section, a second imaging section, a third imaging section, and a processor. The first imaging section, second imaging section, and third imaging section capture a first image, a second image, and a third image of a scene with a first field of view (FOV), a second FOV, and a third FOV. The processor is configured to generate a first output image by performing a first image-fusion process on at least two of the first image, the second image, and the third image in response to a zooming factor of the camera device being between a first zooming factor and a second zooming factor, wherein the first FOV is wider than the second FOV, and the second FOV is wider than the third FOV, and the second zooming factor is greater than the first zooming factor.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Ping-Han LEE, Te-Hao CHANG
  • Patent number: 10771766
    Abstract: Various examples with respect to method and apparatus for active stereo vision are described. An apparatus may include an electromagnetic (EM) wave emitter, a first sensor and a second sensor. During operation, the EM wave emitter emits EM waves toward a scene, the first sensor captures a first image of the scene in an infrared (IR) spectrum, and the second sensor captures a second image of the scene in a light spectrum. The first image and second image, when processed, may enable active stereo vision.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: September 8, 2020
    Assignee: MEDIATEK INC.
    Inventors: Han-Yang Wang, Yu-Chun Chen, Po-Hao Huang, Chao-Chung Cheng, Ying-Jui Chen, Te-Hao Chang
  • Patent number: 10764512
    Abstract: A camera device is provided. The camera device includes: a first imaging section, a second imaging section, a third imaging section, and a processor. The first imaging section, second imaging section, and third imaging section capture a first image, a second image, and a third image of a scene with a first field of view (FOV), a second FOV, and a third FOV. The processor is configured to generate a first output image by performing a first image-fusion process on the first image, the second image, and a third image in response to a zooming factor of the camera device being between a first zooming factor and a second zooming factor, wherein the first FOV is wider than the second FOV, and the second FOV is wider than the third FOV, and the second zooming factor is greater than the first zooming factor.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 1, 2020
    Assignee: MEDIATEK INC.
    Inventors: Ping-Han Lee, Te-Hao Chang
  • Patent number: 10755392
    Abstract: A video controller and method for performing tone-mapping of high-dynamic-range (HDR) video are provided. The video controller includes: a color-space converter, arranged to receive an input high-dynamic-range (HDR) video signal and perform a color space conversion on the input HDR video signal to obtain a first video signal having a first gamma curve; a de-gamma unit, arranged to apply a second gamma curve on the first video signal to compensate the first gamma curve to obtain a second video signal; a first histogram calculator, arranged to calculate a first histogram of a current frame of the second video signal; and a tone-mapping unit, arranged to apply a tone-mapping curve on the current frame of the second video signal according to a histogram of a previous frame of the second video signal to generate an output video signal.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: August 25, 2020
    Assignee: MEDIATEK INC.
    Inventors: Ying-Ru Chen, Wen-Fu Lee, Te-Hao Chang, Tai-Hsiang Huang
  • Publication number: 20190306441
    Abstract: Various examples with respect to adaptive infrared (IR) projection control for depth estimation in computer vision are described. A processor or control circuit of an apparatus receives data of an image based on sensing by one or more image sensors. The processor or control circuit also detects a region of interest (ROI) in the image. The processor or control circuit then adaptively controls a light projector with respect to projecting light toward the ROI.
    Type: Application
    Filed: March 15, 2019
    Publication date: October 3, 2019
    Inventors: Te-Hao Chang, Chi-Hui Wang, Chi-Cheng Ju, Ying-Jui Chen, Chun-Nan Li
  • Publication number: 20190306488
    Abstract: Various examples with respect to method and apparatus for active stereo vision are described. An apparatus may include an electromagnetic (EM) wave emitter, a first sensor and a second sensor. During operation, the EM wave emitter emits EM waves toward a scene, the first sensor captures a first image of the scene in an infrared (IR) spectrum, and the second sensor captures a second image of the scene in a light spectrum. The first image and second image, when processed, may enable active stereo vision.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 3, 2019
    Inventors: Han-Yang Wang, Yu-Chun Chen, Po-Hao Huang, Chao-Chung Cheng, Ying-Jui Chen, Te-Hao Chang
  • Publication number: 20190297275
    Abstract: A camera device is provided. The camera device includes: a first imaging section, a second imaging section, a third imaging section, and a processor. The first imaging section, second imaging section, and third imaging section capture a first image, a second image, and a third image of a scene with a first field of view (FOV), a second FOV1 and a third FOV. The processor is configured to generate a first output image by performing a first image-fusion process on the first image, the second image, and a third image in response to a zooming factor of the camera device being between a first zooming factor and a second zooming factor, wherein the first FOV is wider than the second FOV, and the second FOV is wider than the third FOV, and the second zooming factor is greater than the first zooming factor.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 26, 2019
    Inventors: Ping-Han LEE, Te-Hao CHANG
  • Patent number: 10283078
    Abstract: Methods and apparatuses pertaining to adaptive display partial update may involve determining whether partial update for an image frame is allowed and, responsive to a determination that the partial update for the image frame is allowed, determining whether the partial update is applicable to the image frame. Responsive to a determination that the partial update is applicable to the image frame, whether or not at least a difference between one or more properties of the image frame and one or more properties of a previous image frame exceeds a threshold may be determined. A partial-frame processing may be performed to partially update the image frame responsive to a determination that the difference does not exceed the threshold.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: May 7, 2019
    Assignee: MediaTek Inc.
    Inventors: Wen-Fu Lee, Te-Hao Chang, Ying-Jui Chen
  • Publication number: 20190019277
    Abstract: A video controller and method for performing tone-mapping of high-dynamic-range (HDR) video are provided. The video controller includes: a color-space converter, arranged to receive an input high-dynamic-range (HDR) video signal and perform a color space conversion on the input HDR video signal to obtain a first video signal having a first gamma curve; a de-gamma unit, arranged to apply a second gamma curve on the first video signal to compensate the first gamma curve to obtain a second video signal; a first histogram calculator, arranged to calculate a first histogram of a current frame of the second video signal; and a tone-mapping unit, arranged to apply a tone-mapping curve on the current frame of the second video signal according to a histogram of a previous frame of the second video signal to generate an output video signal.
    Type: Application
    Filed: May 29, 2018
    Publication date: January 17, 2019
    Inventors: Ying-Ru CHEN, Wen-Fu LEE, Te-Hao CHANG, Tai-Hsiang HUANG
  • Publication number: 20180205932
    Abstract: The present invention provides a see-through augmented reality device coupled to a head-mounted display, the device comprises: a camera configured to capture an image; a 2-axis gimbal coupled to the camera and configured to stabilize the camera; a servo motor coupled to the camera and configured to control the rotations of the camera; a microcontroller coupled to the servo motor and configured to control the servo motor; a multiplexer coupled to the microcontroller and configured to decode signals received from the microcontroller; and an augmented reality image processor coupled to the camera and configured to combine a virtual object with the image captured by the camera to create a virtual-real image and transfer the virtual-real image to the head-mounted display.
    Type: Application
    Filed: July 6, 2017
    Publication date: July 19, 2018
    Inventors: Tzu-Chieh Yu, Yu-Hsuan Huang, Te-Hao Chang, Ming Ouh Young
  • Patent number: 10003814
    Abstract: An image processor includes a receiving unit, an information analyzer and an adjusting circuit. The receiving unit is arranged for receiving image/video data and corresponding metadata, the information analyzer is arranged for analyzing the metadata of the image/video data to generate at least one analyzing result for indicating a strength of an image/video quality enhancement, and the adjusting circuit is arranged for adjusting an image/video quality according to the analyzing result.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 19, 2018
    Assignee: MEDIATEK INC.
    Inventors: Yu-Mao Lin, Te-Hao Chang, Ying-Jui Chen
  • Publication number: 20170124981
    Abstract: Methods and apparatuses pertaining to adaptive display partial update may involve determining whether partial update for an image frame is allowed and, responsive to a determination that the partial update for the image frame is allowed, determining whether the partial update is applicable to the image frame. Responsive to a determination that the partial update is applicable to the image frame, whether or not at least a difference between one or more properties of the image frame and one or more properties of a previous image frame exceeds a threshold may be determined. A partial-frame processing may be performed to partially update the image frame responsive to a determination that the difference does not exceed the threshold.
    Type: Application
    Filed: January 16, 2017
    Publication date: May 4, 2017
    Inventors: Wen-Fu Lee, Te-Hao Chang, Ying-Jui Chen