Patents by Inventor Chun-Lin Chien

Chun-Lin Chien 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).

  • Publication number: 20240195945
    Abstract: A method for automatically detecting a projector configuration and a projection system are provided. First, multiple projectors are searched in a network domain, and each projector is correspondingly equipped with an imaging apparatus. Next, the projectors are driven to project, and the imaging apparatuses are driven to capture images. Afterwards, the projectors are grouped based on one or more projected ranges comprised in an imaging range of the imaging apparatus corresponding to each projector. A configuration relationship of the projected ranges of the projectors in the same group is determined for overlapping areas between the projected ranges of the projectors grouped in the same group. The method for automatically detecting the projector configuration and the projection system proposed by the disclosure can automatically detect the actual configuration relationship of the projectors.
    Type: Application
    Filed: December 7, 2023
    Publication date: June 13, 2024
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Chung-Lung Yang, Yu-Wen Lo, Xuan-En Fung
  • Publication number: 20240114116
    Abstract: A multi-projector system and a method of calibrating the multi-projector system are provided. The method includes: controlling a first projector to project a first image, and capturing and generating a first captured image including the first image to obtain a first color value from the first captured image through an image capturing device; projecting a second image according to a first projection parameter, and capturing and generating a second captured image including the second image to obtain a second color value from the second captured image through the image capturing device, wherein the first projection parameter includes an electrical parameter of a light source module of the second projector; calculating an absolute difference between the first color value and the second color value; and adjusting the first projection parameter to update the absolute difference in response to the absolute difference being greater than a first threshold.
    Type: Application
    Filed: September 25, 2023
    Publication date: April 4, 2024
    Applicant: Coretronic Corporation
    Inventors: Xuan-En Fung, Chun-Lin Chien, Yu-Wen Lo, Yu-Hua Yang
  • Publication number: 20230344971
    Abstract: A projector includes a projection device, a capturing device, and a controller. The projection device is configured to project an image beam to form a correction frame. The capturing device is configured to capture a correction frame to generate a captured image frame. The controller is electrically connected to the projection device and the capturing device. The controller receives the captured image frame and adjusts the brightness of the correction frame according to the brightness in the capture area of the captured image frame, and records RGB values of the adjusted correction frame and the capturing parameter of the capturing device after adjusted. An adjustment method for the correction frame of the projector is also provided.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 26, 2023
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Xuan-En Fung
  • Patent number: 11792335
    Abstract: A projection system, including a projection target, a projection device, an image capturing device, and a processor circuit, is provided. The projection target includes a reflective surface and an anti-reflective film disposed on the reflective surface. The anti-reflective film defines a projection range. The image capturing device captures a first captured image containing the projection target. The first captured image includes an image of the anti-reflective film. The processor circuit determines a position and a shape of the anti-reflective film in the first captured image according to the first captured image. The projection device projects a projection image on the projection target. The projection device adjusts the projection image according to the position and the shape of the anti-reflective film, and correspondingly adjusts the projection image to the projection range. In addition, an image projection method is also provided.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: October 17, 2023
    Assignee: Coretronic Corporation
    Inventors: Chien-Chun Peng, Hsun-Cheng Tu, Chi-Wei Lin, Chun-Lin Chien
  • Patent number: 11604402
    Abstract: A projection system and a projection method are provided. The projection system includes a first projector and a second projector. The first projector is configured to project a first grid picture onto a projection surface. The second projector is configured to project a second grid picture onto the projection surface. The second grid picture and the first grid picture are blended into a blended projection picture. The first grid picture includes a first overlap region. Grid lines of the first overlap region are displayed in a first color. The second grid picture includes a second overlap region. Grid lines of the second overlap region are displayed in a second color. The first color and the second color are complementary colors. When the blended projection picture is formed, grid lines of an overlap region of the first grid picture and the second grid picture are displayed in a recognition color.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: March 14, 2023
    Assignee: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yu-Kuan Chang
  • Patent number: 11575864
    Abstract: A projection system and a projection method are provided. The projection system includes a first projector and a second projector. A first projection image projected by the first projector and a second projection image projected by the second projector are partially overlapped. A projection region edit menu is executed to display multiple adjustment points and multiple connecting lines on the first projection image. A position of a selected adjustment point among the multiple adjustment points and positions of two connecting lines connected to the selected adjustment point among the multiple adjustment points displayed on the first projection image are changed according to a first moving instruction to select a closed region formed by the multiple connecting lines in a non-overlap region of the first projection image. The projection method is adapted to the projection system that provides a blending projection effect of multiple projectors having an even brightness.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: February 7, 2023
    Assignee: Coretronic Corporation
    Inventors: Chun-Lin Chien, Chung-Lung Yang
  • Publication number: 20220408066
    Abstract: A projection system and its color calibration method are provided. The projection system includes a projection device, a camera device, and a processing circuit. The projection device projects a calibration projection image including a plurality of calibration regions. The camera device captures the calibration projection image. The processing circuit performs a color calibration operation to calibrate color uniformity of the calibration projection image. The processing circuit drives the projection device to project the calibration projection image according to color gain values of the calibration regions. The processing circuit drives the camera device to capture the calibration projection image, calculates color values of the calibration regions, and updates the color gain values of the calibration regions to make the color values of the calibration regions approach at least one target value.
    Type: Application
    Filed: June 16, 2022
    Publication date: December 22, 2022
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yu-Wen Lo
  • Publication number: 20220303512
    Abstract: A projection system and a projection method are provided. The projection system includes a first projector and a second projector. A first projection image projected by the first projector and a second projection image projected by the second projector are partially overlapped. A projection region edit menu is executed to display multiple adjustment points and multiple connecting lines on the first projection image. A position of a selected adjustment point among the multiple adjustment points and positions of two connecting lines connected to the selected adjustment point among the multiple adjustment points displayed on the first projection image change according to a first moving instruction to select a closed region formed by the multiple connecting lines in a non-overlap region of the first projection image. The projection method is adapted to the projection system that provides a blending projection effect of multiple projectors having an even brightness.
    Type: Application
    Filed: March 17, 2022
    Publication date: September 22, 2022
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Chung-Lung Yang
  • Publication number: 20220301466
    Abstract: A projection system is provided, which includes multiple projection devices. The projection devices are configured to generate multiple projection images. Each of the projection images partially overlaps with at least one of the adjacent projection images. In a viewing direction, aspect ratios of the projection images are all greater than 1 or less than 1. A projection direction of one of the projection devices is not parallel to a projection direction of another one of the projection devices. A stitching method of the projection images is further provided. The projection system and the stitching method of the projection images provided by the disclosure have a better effect of the projection images.
    Type: Application
    Filed: February 15, 2022
    Publication date: September 22, 2022
    Applicant: Coretronic Corporation
    Inventors: Hsun-Cheng Tu, Chun-Lin Chien, Chi-Wei Lin, Chien-Chun Peng
  • Publication number: 20220303407
    Abstract: A projection system, including a projection target, a projection device, an image capturing device, and a processor circuit, is provided. The projection target includes a reflective surface and an anti-reflective film disposed on the reflective surface. The anti-reflective film defines a projection range. The image capturing device captures a first captured image containing the projection target. The first captured image includes an image of the anti-reflective film. The processor circuit determines a position and a shape of the anti-reflective film in the first captured image according to the first captured image. The projection device projects a projection image on the projection target. The projection device adjusts the projection image according to the position and the shape of the anti-reflective film, and correspondingly adjusts the projection image to the projection range. In addition, an image projection method is also provided.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 22, 2022
    Applicant: Coretronic Corporation
    Inventors: Chien-Chun Peng, Hsun-Cheng Tu, Chi-Wei Lin, Chun-Lin Chien
  • Patent number: 11343480
    Abstract: A projection positioning system and a projection positioning method thereof are provided. A projection device projects a first test image and a second test image on a projection screen based on a projection range at different time points. At least one photosensitive element is disposed on the projection screen. In response to projecting the first test image, a computing device divides a first image sub-zone of the first test image according to the first image sub-zone corresponding to one of first optical parameters sensed by the photosensitive element, to generate the second test image. In response to projecting the second test image, the computing device determines positioning information of the photosensitive element with respect to the projection range according to a second image sub-zone corresponding to one of second optical parameters sensed by the photosensitive element. The projection device performs a projection adjustment function according to the positioning information.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: May 24, 2022
    Assignee: Coretronic Corporation
    Inventors: Chun-Lin Chien, Chung-Lung Yang, Yu-Kuan Chang, Pen-Ning Kuo
  • Patent number: 11303863
    Abstract: A projection system, a projection image adjusting method and a projector are provided. The projection system includes a projector and a control unit. The projector projects a projection image. The control unit controls movement of an image grid point of the projection image projected by the projector. When the projector receives a continuous adjustment signal output by the control unit, the projector determines a cumulative displacement amount proportional to a continuous signal quantity cumulative value according to the continuous signal quantity cumulative value of the continuous adjustment signal, and the image grid point is moved by the projector according to the cumulative displacement amount to correspondingly deform at least a part of the projection image, so as to provide a convenient projection image adjustment effect.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: April 12, 2022
    Assignee: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yu-Kuan Chang
  • Publication number: 20210409666
    Abstract: A projection positioning system and a projection positioning method thereof are provided. A projection device projects a first test image and a second test image on a projection screen based on a projection range at different time points. At least one photosensitive element is disposed on the projection screen. In response to projecting the first test image, a computing device divides a first image sub-zone of the first test image according to the first image sub-zone corresponding to one of first optical parameters sensed by the photosensitive element, to generate the second test image. In response to projecting the second test image, the computing device determines positioning information of the photosensitive element with respect to the projection range according to a second image sub-zone corresponding to one of second optical parameters sensed by the photosensitive element. The projection device performs a projection adjustment function according to the positioning information.
    Type: Application
    Filed: April 13, 2021
    Publication date: December 30, 2021
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Chung-Lung Yang, Yu-Kuan Chang, Pen-Ning Kuo
  • Publication number: 20210364904
    Abstract: A projection system and a projection method are provided. The projection system includes a first projector and a second projector. The first projector is configured to project a first grid picture onto a projection surface. The second projector is configured to project a second grid picture onto the projection surface. The second grid picture and the first grid picture are blended into a blended projection picture. The first grid picture includes a first overlap region. Grid lines of the first overlap region are displayed in a first color. The second grid picture includes a second overlap region. Grid lines of the second overlap region are displayed in a second color. The first color and the second color are complementary colors. When the blended projection picture is formed, grid lines of an overlap region of the first grid picture and the second grid picture are displayed in a recognition color.
    Type: Application
    Filed: March 23, 2021
    Publication date: November 25, 2021
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yu-Kuan Chang
  • Patent number: 11146769
    Abstract: A projection device including a projecting unit, an input unit and a processor and an image adjusting method of the projection device are provided. The projecting unit projects a first image to a projection surface. The input unit receives an input operation. The processor is electrically connected to the projecting unit and the input unit. The processor divides the first image into at least one block according to the input operation, selects one block from the at least one block to serve as a to-be-adjusted block, defines at least one control point within the to-be-adjusted block, and adjusts a position of the at least one control point so as to adjust a part of the first image. With the device and method provided, a user may independently adjust one block of the image without adjusting other blocks, so as to improve image authenticity and user satisfaction.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: October 12, 2021
    Assignee: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yung-Chiao Liu
  • Publication number: 20200389632
    Abstract: A projection calibration system and a projection calibration method thereof are provided. A projection device projects test pictures onto a projection screen. Each test picture includes a pattern. A plurality of photosensitive elements are disposed on a frame of the projection screen and measure brightness sensing information when the projection device projects each test picture. In response to the pattern being changed from a first position in a first test picture to a second position in a second test picture, the brightness sensing information is changed from a first sensing value to a second sensing value. In response to the brightness sensing information being changed from the first sensing value to the second sensing value, a computing device determines picture boundary parameters according to the first position. The projection device performs image scaling according to the picture boundary parameters to project a calibrated picture aligned with the frame.
    Type: Application
    Filed: June 8, 2020
    Publication date: December 10, 2020
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Chung-Lung Yang, Yu-Kuan Chang
  • Publication number: 20200358991
    Abstract: A projection system, a projection image adjusting method and a projector are provided. The projection system includes a projector and a control unit. The projector projects a projection image. The control unit controls movement of an image grid point of the projection image projected by the projector. When the projector receives a continuous adjustment signal output by the control unit, the projector determines a cumulative displacement amount proportional to a continuous signal quantity cumulative value according to the continuous signal quantity cumulative value of the continuous adjustment signal, and the image grid point is moved by the projector according to the cumulative displacement amount to correspondingly deform at least a part of the projection image, so as to provide a convenient projection image adjustment effect.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 12, 2020
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yu-Kuan Chang
  • Publication number: 20200329221
    Abstract: A projection device including a projecting unit, an input unit and a processor and an image adjusting method of the projection device are provided. The projecting unit projects a first image to a projection surface. The input unit receives an input operation. The processor is electrically connected to the projecting unit and the input unit. The processor divides the first image into at least one block according to the input operation, selects one block from the at least one block to serve as a to-be-adjusted block, defines at least one control point within the to-be-adjusted block, and adjusts a position of the at least one control point so as to adjust a part of the first image. With the device and method provided, a user may independently adjust one block of the image without adjusting other blocks, so as to improve image authenticity and user satisfaction.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 15, 2020
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yung-Chiao Liu
  • Patent number: 10764546
    Abstract: A projection device having a signal input unit, an image signal generating unit, an image adjustment unit, a control unit and a projection unit is provided. The signal input unit receives an external signal. The image signal generating unit generates an image signal. The image adjustment unit generates image adjustment gridlines according to the signal source. The control unit detects the signal input unit, and when the signal input unit does not receive the external signal, the control unit controls the image signal generating unit to generate the image signal to serve as the signal source. The projection unit projects the signal source and the image adjustment gridlines onto a projection plane. The projection device and the method for generating adjustment gridlines of the invention are still capable of generating the image adjustment gridlines in case that an input signal source does not exist.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: September 1, 2020
    Assignee: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yu-Kuan Chang
  • Publication number: 20200244935
    Abstract: A projection device having a signal input unit, an image signal generating unit, an image adjustment unit, a control unit and a projection unit is provided. The signal input unit receives an external signal. The image signal generating unit generates an image signal. The image adjustment unit generates image adjustment gridlines according to the signal source. The control unit detects the signal input unit, and when the signal input unit does not receive the external signal, the control unit controls the image signal generating unit to generate the image signal to serve as the signal source. The projection unit projects the signal source and the image adjustment gridlines onto a projection plane. The projection device and the method for generating adjustment gridlines of the invention are still capable of generating the image adjustment gridlines in case that an input signal source does not exist.
    Type: Application
    Filed: January 15, 2020
    Publication date: July 30, 2020
    Applicant: Coretronic Corporation
    Inventors: Chun-Lin Chien, Yu-Kuan Chang