Patents by Inventor Kun-Rong Chang

Kun-Rong 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: 10331277
    Abstract: A touch projection screen includes a substrate, a first touch layer, a second touch layer, a reflective projection film and a circuit board. The substrate has a first surface and a second surface. The first touch layer is disposed on the first surface and extends around an edge of the substrate to cover a part of the second surface of the substrate. The second touch layer is disposed on the first touch layer and extends around an edge of the substrate to cover a part of the second surface of the substrate. The reflective projection film is disposed on the second touch layer. The circuit board is disposed on the second surface of the substrate and electrically connects the first and second touch layers. A touch projection system includes the touch projection screen and a projection device. The projection device projects an image beam onto the touch projection screen.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 25, 2019
    Assignee: Coretronic Corporation
    Inventors: Kun-Rong Chang, Nan-Jiun Yin, Pen-Ning Kuo
  • Patent number: 9921671
    Abstract: A touch projection screen including a first substrate, a plurality of first touch layers, a plurality of second touch layers, and a reflective projection film is provided. The first touch layers are disposed on the first substrate and at least two of the first touch layers are arranged adjacent to each other. Each of the first touch layers includes a first base layer and a first patterned electrode disposed on the first base layer. The second touch layers are disposed on the first touch layers and at least two of the second touch layers are arranged adjacent to each other. Each of the second touch layers includes a second base layer and a second patterned electrode disposed on the second base layer. The reflective projection film is disposed on the second touch layers. A manufacturing method of the touch projection screen is also provided.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 20, 2018
    Assignee: Coretronic Corporation
    Inventors: Kun-Rong Chang, Nan-Jiun Yin, Pen-Ning Kuo
  • Patent number: 9897906
    Abstract: A projection screen includes a plurality of projection plates and at least one fixing component. Each of the projection plates has a projection surface and at least one connection side. Through the connection sides, the projection surfaces of the projection plates lean against each other to be coplanar. The fixing component includes two fixing sections connected with each other, wherein the two connection sides leant against each other are clipped at the two fixing sections, respectively.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: February 20, 2018
    Assignee: Coretronic Corporation
    Inventors: Kun-Rong Chang, Chung-Lung Yang, Pen-Ning Kuo
  • Patent number: 9851891
    Abstract: An interactive projection system and a projection method thereof are provided. The interactive projection system includes a projection region, a projection device, a touch device and a host. The touch device is movably disposed on the projection region. The projection device projects a corresponding input interface on a touch sensing surface of the touch device according to a position of the touch device, so as to improve usage convenience of the projection system.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: December 26, 2017
    Assignee: Coretronic Corporation
    Inventors: Pen-Ning Kuo, Chung-Lung Yang, Kun-Rong Chang
  • Publication number: 20170082914
    Abstract: A projection screen includes a plurality of projection plates and at least one fixing component. Each of the projection plates has a projection surface and at least one connection side. Through the connection sides, the projection surfaces of the projection plates lean against each other to be coplanar. The fixing component includes two fixing sections connected with each other, wherein the two connection sides leant against each other are clipped at the two fixing sections, respectively.
    Type: Application
    Filed: July 6, 2016
    Publication date: March 23, 2017
    Inventors: Kun-Rong Chang, Chung-Lung Yang, Pen-Ning Kuo
  • Publication number: 20170031467
    Abstract: A touch input accessory for being mounted onto a writing device includes a sleeve portion for being inserted therein a portion of the penholder at the end having the writing tip; a conductive touch head, made of a conductive material, connected to the sleeve portion, and including an opening so that when the sleeve portion is sleeved onto the penholder, the writing tip is enveloped by the conductive touch head, and the nib of the writing tip is protruded from the opening; and a contact conductive portion disposed on the sleeve portion and electrically connected to the conductive touch head, so that when a user holds the writing device and contacts the contact conductive portion to form an entity handwriting on the writing surface, the conductive touch head simultaneously contacts the writing surface to form a corresponding electronic handwriting.
    Type: Application
    Filed: May 6, 2016
    Publication date: February 2, 2017
    Inventors: Pen-Ning Kuo, Chung-Lung Yang, Kun-Rong Chang
  • Publication number: 20160357347
    Abstract: An interactive projection system and a projection method thereof are provided. The interactive projection system includes a projection region, a projection device, a touch device and a host. The touch device is movably disposed on the projection region. The projection device projects a corresponding input interface on a touch sensing surface of the touch device according to a position of the touch device, so as to improve usage convenience of the projection system.
    Type: Application
    Filed: February 18, 2016
    Publication date: December 8, 2016
    Inventors: Pen-Ning Kuo, Chung-Lung Yang, Kun-Rong Chang
  • Publication number: 20160288462
    Abstract: A touch device includes a flexible capacitive touch film and a flexible composite layer. The flexible composite layer is disposed at the flexible capacitive touch film. A material of the flexible composite layer includes one of a magnetizable material and a magnetic material. The flexible composite layer is adapted to attract an object via a magnetic attraction force generated between the flexible composite layer and the object so that the object is capable of being attached on the flexible capacitive touch film.
    Type: Application
    Filed: September 22, 2015
    Publication date: October 6, 2016
    Inventors: Nan-Jiun Yin, Kun-Rong Chang, Pen-Ning Kuo
  • Publication number: 20160266705
    Abstract: A touch projection screen includes a substrate, a first touch layer, a second touch layer, a reflective projection film and a circuit board. The substrate has a first surface and a second surface. The first touch layer is disposed on the first surface and extends around an edge of the substrate to cover a part of the second surface of the substrate. The second touch layer is disposed on the first touch layer and extends around an edge of the substrate to cover a part of the second surface of the substrate. The reflective projection film is disposed on the second touch layer. The circuit board is disposed on the second surface of the substrate and electrically connects the first and second touch layers. A touch projection system includes the touch projection screen and a projection device. The projection device projects an image beam onto the touch projection screen.
    Type: Application
    Filed: September 25, 2015
    Publication date: September 15, 2016
    Inventors: Kun-Rong Chang, Nan-Jiun Yin, Pen-Ning Kuo
  • Publication number: 20160216789
    Abstract: A touch projection screen including a first substrate, a plurality of first touch layers, a plurality of second touch layers, and a reflective projection film is provided. The first touch layers are disposed on the first substrate and at least two of the first touch layers are arranged adjacent to each other. Each of the first touch layers includes a first base layer and a first patterned electrode disposed on the first base layer. The second touch layers are disposed on the first touch layers and at least two of the second touch layers are arranged adjacent to each other. Each of the second touch layers includes a second base layer and a second patterned electrode disposed on the second base layer. The reflective projection film is disposed on the second touch layers. A manufacturing method of the touch projection screen is also provided.
    Type: Application
    Filed: August 5, 2015
    Publication date: July 28, 2016
    Inventors: Kun-Rong Chang, Nan-Jiun Yin, Pen-Ning Kuo
  • Patent number: 9357190
    Abstract: A projection device and an automatic projection calibration method thereof are disclosed. When the projection device boots up, an image pattern corresponding to a display data is projected through a projecting unit. The image pattern is sensed through an image sensor to obtain information of the image pattern. The information of the image pattern is compared with information of a previous image pattern through a processing unit to determine whether to execute an automatic calibration procedure. When the processing unit executes the automatic calibration procedure, a calibration pattern is projected through the projecting unit. The calibration pattern is sensed through the image sensor to obtain information of the calibration pattern. A calibration driving procedure is executed through the processing unit to convert imaging coordinates of the calibration pattern sensed through the image sensor into projecting coordinates of the projection device, so as to establish a coordinate conversion table.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 31, 2016
    Assignee: Coretronic Corporation
    Inventors: Kun-Rong Chang, Wen-Wei Tsai
  • Patent number: 9134820
    Abstract: The invention provides an indicating apparatus used in a projection system. The projection system projects a projected image on a projection surface. The indicating apparatus includes an indicating unit and an infrared receiving module. The indicating unit includes a first component, a second component and an infrared transmitting module. The infrared transmitting module is used to transmit a first infrared signal and a second infrared signal. When the indicating unit touches a touch position on the projection surface, the infrared transmitting module transmits the first infrared signal and the second infrared signal respectively through the first component and the second component. The infrared receiving module receives at least one of the first infrared signal and the second infrared signal. Moreover, the invention provides an indicating method and the indicating unit.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 15, 2015
    Assignee: Coretronic Corporation
    Inventor: Kun-Rong Chang
  • Patent number: 9122141
    Abstract: A micro-projector applied to a portable computer includes a projecting device and a clipping structure. The projecting device is capable of communicating with the portable computer through signals and projecting a projection light. The clipping structure is capable of clipping the portable computer selectively. The projecting device is disposed on the clipping structure.
    Type: Grant
    Filed: June 7, 2009
    Date of Patent: September 1, 2015
    Assignee: CORETRONIC CORPORATION
    Inventors: Kun-Rong Chang, Wen-Chang Chien
  • Publication number: 20140307102
    Abstract: A projection device and an automatic projection calibration method thereof are disclosed. When the projection device boots up, an image pattern corresponding to a display data is projected through a projecting unit. The image pattern is sensed through an image sensor to obtain information of the image pattern. The information of the image pattern is compared with information of a previous image pattern through a processing unit to determine whether to execute an automatic calibration procedure. When the processing unit executes the automatic calibration procedure, a calibration pattern is projected through the projecting unit. The calibration pattern is sensed through the image sensor to obtain information of the calibration pattern. A calibration driving procedure is executed through the processing unit to convert imaging coordinates of the calibration pattern sensed through the image sensor into projecting coordinates of the projection device, so as to establish a coordinate conversion table.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 16, 2014
    Applicant: Coretronic Corporation
    Inventors: Kun-Rong Chang, Wen-Wei Tsai
  • Publication number: 20140118304
    Abstract: The invention provides a touch module and an operation method thereof. The operation method of touch module includes following steps: detecting a touch point; judging whether the touch point is normal touching according to a detected result of the touch point; when the touch point is abnormal touching, reducing the intensity of an infrared laser of the touch module; and when the touch point is normal touching, judging out the position of the touch point. By using the operation method of touch module, it can reduce or avoid the injury of the infrared laser on the vulnerable portions of human body as abnormal touching.
    Type: Application
    Filed: October 7, 2013
    Publication date: May 1, 2014
    Applicant: CORETRONIC CORPORATION
    Inventors: Kun-Rong Chang, Wen-Wei Tsai, Kuo-Yuan Liang
  • Patent number: 8711225
    Abstract: An image-capturing device and a projection automatic calibration method of a projection device are provided. The image-capturing device includes an image sensing device, a lens, a processing unit and a storage unit. The lens is configured to image a calibration pattern on the image sensing device. The processing unit is configured to issue a projection calibration requirement and analyze the calibration pattern imaged on the image sensing device to obtain information relating to the calibration pattern, and the processing unit is further configured to convert imaging coordinates of the calibration pattern imaged on the image sensing device into projecting coordinates of the projection device by executing a calibration driving program to establish a coordinate conversion table. The storage unit is configured to store the calibration driving program and the coordinate conversion table.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: April 29, 2014
    Assignee: Coretronic Corporation
    Inventors: Kun-Rong Chang, Wen-Wei Tsai
  • Publication number: 20130258116
    Abstract: An image-capturing device and a projection automatic calibration method of a projection device are provided. The image-capturing device includes an image sensing device, a lens, a processing unit and a storage unit. The lens is configured to image a calibration pattern on the image sensing device. The processing unit is configured to issue a projection calibration requirement and analyze the calibration pattern imaged on the image sensing device to obtain information relating to the calibration pattern, and the processing unit is further configured to convert imaging coordinates of the calibration pattern imaged on the image sensing device into projecting coordinates of the projection device by executing a calibration driving program to establish a coordinate conversion table. The storage unit is configured to store the calibration driving program and the coordinate conversion table.
    Type: Application
    Filed: January 8, 2013
    Publication date: October 3, 2013
    Applicant: Coretronic Corporation
    Inventors: Kun-Rong Chang, Wen-Wei Tsai
  • Publication number: 20130257813
    Abstract: A projection system including a projection device, a computer device and an image-capturing device is provided. The computer device communicates with the projection device, and is configured to control the projection device to project a calibration pattern in response to a projection calibration requirement. The image-capturing device communicates with at least one of the computer device and the projection device, and is configured to issue the projection calibration requirement and capture the calibration pattern to automatically calibrate interactive coordinates between a display frame of the computer device and a projecting frame of the projection device. In addition, a calibration method relating to the projection system is also provided.
    Type: Application
    Filed: January 15, 2013
    Publication date: October 3, 2013
    Applicant: Coretronic Corporation
    Inventors: Kun-Rong Chang, Wen-Wei Tsai
  • Publication number: 20130249866
    Abstract: The invention provides an indicating apparatus used in a projection system. The projection system projects a projected image on a projection surface. The indicating apparatus includes an indicating unit and an infrared receiving module. The indicating unit includes a first component, a second component and an infrared transmitting module. The infrared transmitting module is used to transmit a first infrared signal and a second infrared signal. When the indicating unit touches a touch position on the projection surface, the infrared transmitting module transmits the first infrared signal and the second infrared signal respectively through the first component and the second component. The infrared receiving module receives at least one of the first infrared signal and the second infrared signal. Moreover, the invention provides an indicating method and the indicating unit.
    Type: Application
    Filed: September 27, 2012
    Publication date: September 26, 2013
    Inventor: Kun-Rong Chang
  • Patent number: 8454168
    Abstract: A stereo display apparatus includes a support member, at least one projector, a screen, first reflectors, and an actuator. The projector is connected to the support member, and includes a battery and an image memory module. The projector is capable of emitting an image beam. The screen is connected to the support member. The first reflectors surround the support member. The actuator is connected to the support member and is capable of driving the support member to rotate. The support member is capable of driving the projector and the screen to rotate. When the projector and the screen rotate, the image beam is projected onto the first reflectors in sequence, and the first reflectors reflect the image beam onto the screen in sequence.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: June 4, 2013
    Assignee: Coretronic Corporation
    Inventors: Ming-Hui Cheng, Kun-Rong Chang, Fang-Hsuan Cheng