Patents by Inventor Jau-Yu Chen
Jau-Yu 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: 8355055Abstract: A method for real-time adjusting image capture frequency by an image detection apparatus comprises: sensing the frames consecutively by an image detection unit; setting a value for a counting variable; selecting a testing frame from the frames and comparing an image displacement between the testing frame and a previous frame thereof, to obtain a motion reference signal by a processing unit; providing a plurality of adjustable values for a capturing frequency variable by a memory unit and corresponding either one of the capturing frequency variable values to the motion reference signal; comparing the value of the counting variable to that of the capturing frequency variable by the processing unit; capturing and recording the testing frame as a sampling frame while the counting variable value reaches that of the capturing frequency variable; comparing an image displacement between the sampling frame and a previous frame thereof, to obtain an ultimate motion speed.Type: GrantFiled: March 2, 2010Date of Patent: January 15, 2013Assignee: Lite-On Semiconductor Corp.Inventor: Jau-Yu Chen
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Patent number: 8269839Abstract: An image motion sensing method applicable for an image sensing device includes the steps of capturing a plurality of sensing frames, each sensing frame including image position information of an image; selecting a base frame from the sensing frames and a sampling frame disposed after the base frame; comparing image position information of images in the base frame and the sampling frame within a base comparison range of the base frame and a sampling comparison range of the sampling frame to generate displacement information; determining a comparison range size according to the displacement information; updating sampling comparison range according to the comparison range size; selecting a sensing frame after the sampling frame as an updated sampling frame; updating the base comparison range of the base frame according to the comparison range size; and returning to the foregoing step of comparing the image position information.Type: GrantFiled: March 29, 2010Date of Patent: September 18, 2012Assignee: Lite-On Semiconductor Corp.Inventors: Jau-Yu Chen, Meng-Kun Chen, Yu-Cheng Sung
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Patent number: 8222585Abstract: A three-dimensional position detecting device includes an electromagnetic radiation source, a first sensing module having first sensing elements, and a second sensing module having second sensing elements. The first and the second sensing elements receive different radiation energies from different spatial direction angles generated by the electromagnetic radiation source relative to the first and the second sensing elements, so values of two spatial direction angles of the electromagnetic radiation source relative to the first and the second sensing modules are obtained according to magnitude relationship of the radiation energies received by the first and the second sensing modules. According to matrix operation of two spatial distances from the electromagnetic radiation source to the first and the second sensing modules and the two spatial direction angles, a spatial coordinate position of the electromagnetic radiation source relative to the first and the second sensing modules is obtained.Type: GrantFiled: May 19, 2008Date of Patent: July 17, 2012Assignee: Lite-On Semiconductor Corp.Inventors: Chia-Chu Cheng, Jau-Yu Chen, Chih-Cheng Kuan
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Publication number: 20120162136Abstract: An optical touch panel and a method of detecting touch point positions on an optical touch panel are provided. The optical touch panel includes a processing unit, and at least three optical detectors divided into at least two detector groups. Each of the optical detectors is configured to output a signal indicating intensities of light detected thereby, and is associated with a detection range. The processing unit is configured to receive the signals from the optical detectors, to determine which of the optical detectors detect touch points within the respective detection range according to the signals received by the processing unit, and to obtain an optimum set of coordinates for at least one of the touch points with respect to an optimum detector group which is one of the detector groups formed by the optical detectors that detect the touch points.Type: ApplicationFiled: May 3, 2011Publication date: June 28, 2012Applicant: LITE-ON SEMICONDUCTOR CORP.Inventors: JAU-YU CHEN, CHIH-HAO CHEN
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Publication number: 20120038591Abstract: A coordinate information correction method for an optical touch panel includes: a) determining a set of to-be-corrected included angle values according to output signals received from light detectors, each of the to-be-corrected included angle values representing an included angle between a base line and a connecting line that extends from a respective one of the light detectors to a location of an object in a light curtain region; b) calculating a set of correction values, each of which is a finite order function of a respective one of the to-be-corrected included angle values; c) calculating a set of corrected included angle values from the set of to-be-corrected included angle values and the set of correction values; and d) generating corrected coordinate information associated with the location of the object in the light curtain region from the corrected included angle values.Type: ApplicationFiled: December 22, 2010Publication date: February 16, 2012Applicant: LITE-ON SEMICONDUCTOR CORP.Inventors: Jau-Yu CHEN, Yu-Wen TING
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Publication number: 20110157459Abstract: A method for real-time adjusting image capture frequency by an image detection apparatus comprises: sensing the frames consecutively by an image detection unit; setting a value for a counting variable; selecting a testing frame from the frames and comparing an image displacement between the testing frame and a previous frame thereof, to obtain a motion reference signal by a processing unit; providing a plurality of adjustable values for a capturing frequency variable by a memory unit and corresponding either one of the capturing frequency variable values to the motion reference signal; comparing the value of the counting variable to that of the capturing frequency variable by the processing unit; capturing and recording the testing frame as a sampling frame while the counting variable value reaches that of the capturing frequency variable; comparing an image displacement between the sampling frame and a previous frame thereof, to obtain an ultimate motion speed.Type: ApplicationFiled: March 2, 2010Publication date: June 30, 2011Applicant: LITE-ON SEMICONDUCTOR CORP.Inventor: JAU-YU CHEN
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Publication number: 20110157416Abstract: A flicker detection method of an image sensing device is disclosed. The image sensing device includes a sensor and a processor. The method comprises steps of: consequently detecting multiple frames according to a frame rate, wherein each of the multiple frames includes a light signal; generating a light intensity information based on the light signals; determining a sampling window according to a predetermined detection frequency and the frame rate; dividing the light intensity information into multiple light intensity groups according to the sampling window; distinguishing a feature of each light intensity group, and recording an index position of each feature of the light intensity groups; calculating, individually, a difference between the index positions of the adjacent light intensity groups; and determining whether the differences are patterned, in order to determine whether the light intensity information corresponds to a flicker.Type: ApplicationFiled: April 21, 2010Publication date: June 30, 2011Applicant: LITE-ON SEMICONDUCTOR CORP.Inventor: JAU-YU CHEN
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Publication number: 20110157391Abstract: An image motion sensing method applicable for an image sensing device includes the steps of capturing a plurality of sensing frames, each sensing frame including image position information of an image; selecting a base frame from the sensing frames and a sampling frame disposed after the base frame; comparing image position information of images in the base frame and the sampling frame within a base comparison range of the base frame and a sampling comparison range of the sampling frame to generate displacement information; determining a comparison range size according to the displacement information; updating sampling comparison range according to the comparison range size; selecting a sensing frame after the sampling frame as an updated sampling frame; updating the base comparison range of the base frame according to the comparison range size; and returning to the foregoing step of comparing the image position information.Type: ApplicationFiled: March 29, 2010Publication date: June 30, 2011Applicant: LITE-ON SEMICONDUCTOR CORP.Inventors: JAU-YU CHEN, MENG-KUN CHEN, YU-CHENG SUNG
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Patent number: 7791015Abstract: A motion-detecting module for combining a light-emitting function and a light-sensing function together includes a chip unit, a cover unit, and a light-guiding unit. The chip unit has a PCB, a light-emitting chip, and an image-sensing chip, and both the light-emitting chip and the image-sensing chip are electrically disposed on the PCB. The cover unit covers the light-emitting chip and the image-sensing chip. The cover unit has a receiving space for communicating the light-emitting chip and the image-sensing chip, a first opening for exposing the light-emitting chip, and a second opening for exposing the image-sensing chip. The light-guiding unit is disposed under the cover unit, and the light-guiding unit at least has a first refraction surface, a second refraction surface, a third refraction surface, a fourth refraction surface, and a reflection surface.Type: GrantFiled: May 8, 2008Date of Patent: September 7, 2010Assignee: Lite-On Semiconductor Corp.Inventors: Jau-Yu Chen, Kun-Hsun Lee
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Patent number: 7774159Abstract: A 3D multi-degree of freedom detecting device includes a first electromagnetic radiation source, a second electromagnetic radiation source, a first sensing module, and at least one second sensing module. The first electromagnetic radiation source is used to generate first electromagnetic radiations, and the first electromagnetic radiation source is a point source. The second electromagnetic radiation source is used to generate second electromagnetic radiations, and the second electromagnetic radiation source is a point source. The first sensing module has a plurality of first sensing elements for receiving different radiation energies generated by the first electromagnetic radiations and the second electromagnetic radiations from different spatial angles. The at least one second sensing module has a plurality of second sensing elements for receiving different radiation energies generated by the first electromagnetic radiations and the second electromagnetic radiations from different spatial angles.Type: GrantFiled: June 2, 2008Date of Patent: August 10, 2010Assignee: Lite-On Semiconductor Corp.Inventors: Chia-Chu Cheng, Jau-Yu Chen, Chih-Cheng Kuan
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Publication number: 20090278035Abstract: A motion-detecting module for combining a light-emitting function and a light-sensing function together includes a chip unit, a cover unit, and a light-guiding unit. The chip unit has a PCB, a light-emitting chip, and an image-sensing chip, and both the light-emitting chip and the image-sensing chip are electrically disposed on the PCB. The cover unit covers the light-emitting chip and the image-sensing chip. The cover unit has a receiving space for communicating the light-emitting chip and the image-sensing chip, a first opening for exposing the light-emitting chip, and a second opening for exposing the image-sensing chip. The light-guiding unit is disposed under the cover unit, and the light-guiding unit at least has a first refraction surface, a second refraction surface, a third refraction surface, a fourth refraction surface, and a reflection surface.Type: ApplicationFiled: May 8, 2008Publication date: November 12, 2009Inventors: Jau-Yu Chen, Kun-Hsun Lee
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Publication number: 20090116730Abstract: A three-dimensional direction detecting device, including: an electromagnetic radiation source and a sensing module. The electromagnetic radiation source is used to generate electromagnetic radiations. The sensing module has a plurality of sensing elements for receiving different radiation energies generated by the electromagnetic radiations from different spatial angles. Therefore, the sensing elements respectively receive the different radiation energies from different spatial direction angles generated by the electromagnetic radiation source relative to the sensing elements, so that the value of a spatial direction angle of the electromagnetic radiation source relative to the sensing module is obtained according to the magnitude relationship of the radiation energies received by the sensing module.Type: ApplicationFiled: May 19, 2008Publication date: May 7, 2009Applicant: LITE-ON SEMICONDUCTOR CORP.Inventors: CHIA-CHU CHENG, Jau-Yu Chen, CHih-Cheng Kuan
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Publication number: 20090116729Abstract: A three-dimensional position detecting device includes an electromagnetic radiation source, a first sensing module having first sensing elements, and a second sensing module having second sensing elements. The first and the second sensing elements receive different radiation energies from different spatial direction angles generated by the electromagnetic radiation source relative to the first and the second sensing elements, so values of two spatial direction angles of the electromagnetic radiation source relative to the first and the second sensing modules are obtained according to magnitude relationship of the radiation energies received by the first and the second sensing modules. According to matrix operation of two spatial distances from the electromagnetic radiation source to the first and the second sensing modules and the two spatial direction angles, a spatial coordinate position of the electromagnetic radiation source relative to the first and the second sensing modules is obtained.Type: ApplicationFiled: May 19, 2008Publication date: May 7, 2009Applicant: LITE-ON SEMICONDUCTOR CORP.Inventors: CHIA-CHU CHENG, Jau-Yu Chen, Chih-Cheng Kuan
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Publication number: 20090119061Abstract: A 3D multi-degree of freedom detecting device includes a first electromagnetic radiation source, a second electromagnetic radiation source, a first sensing module, and at least one second sensing module. The first electromagnetic radiation source is used to generate first electromagnetic radiations, and the first electromagnetic radiation source is a point source. The second electromagnetic radiation source is used to generate second electromagnetic radiations, and the second electromagnetic radiation source is a point source. The first sensing module has a plurality of first sensing elements for receiving different radiation energies generated by the first electromagnetic radiations and the second electromagnetic radiations from different spatial angles. The at least one second sensing module has a plurality of second sensing elements for receiving different radiation energies generated by the first electromagnetic radiations and the second electromagnetic radiations from different spatial angles.Type: ApplicationFiled: June 2, 2008Publication date: May 7, 2009Applicant: LITE-ON SEMICONDUCTOR CORP.Inventors: CHIA-CHU CHENG, Jau-Yu Chen, Chih-Cheng Kuan
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Publication number: 20080316492Abstract: An optical motion identification device utilizing partial total internal reflection light source and/or partial non-total internal reflection light source includes a light-emitting member, a code member and a light-sensing unit. The light-emitting member generates projecting light beams. The code member receives the projecting light beams generated by the light-emitting member at different angles and positions, and the code member has many total internal reflection surfaces in order to make the projecting light beams form many partial total internal reflection beams and a plurality of partial non-total internal reflection beams.Type: ApplicationFiled: March 28, 2008Publication date: December 25, 2008Inventors: Chia-Chu Cheng, Jau-Yu Chen
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Publication number: 20080198357Abstract: An optical navigation device and a method thereof, wherein the optical navigation device comprises a pair of linear sensor arrays which are arranged non-parallel to each other for detecting light signal. Furthermore, an algorithm including correlation and vector analysis is processed by a computation unit to determine velocity and displacement according to present and previous light signal data sequences. Hence, the linear sensor arrays adopted to be the approach of navigation device can achieve the goal of reducing the computing data, increasing operation speed effectively and reducing hardware cost because of its fewer optically sensitive elements.Type: ApplicationFiled: February 20, 2007Publication date: August 21, 2008Inventors: Chia-Chu Cheng, Shih-Heng Lin, Rone-Hwa Chou, Jau-Yu Chen
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Publication number: 20080193117Abstract: A motion-detecting device for reducing assembly tolerance includes a connection unit, a light-emitting unit, an image-sensing unit and a positioning unit. The connection unit has a first fixing portion formed on one side thereof and a second fixing portion formed on another side thereof. The second fixing portion has a receiving space and a through hole communicating with the receiving space. The light-emitting unit is fixed in the first fixing portion of the connection unit for generating a projection beam. The image-sensing unit is received in the receiving space of the second fixing portion for capturing images. The positioning unit is positioned over the receiving space of the second fixing portion and electrically connected to the image-sensing unit. The transparent base is disposed under the connection unit and mated with the second fixing portion of the connection unit.Type: ApplicationFiled: February 12, 2008Publication date: August 14, 2008Applicant: LITE-ON SEMICONDUCTOR CORP.Inventors: Chia-Chu Cheng, Tzu-Heng Liu, Jau-Yu Chen, Kun-Hsun Lee
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Publication number: 20080173790Abstract: A motion-detecting module with a built-in light source includes a chip unit, a cover unit, and a light-guiding unit. The chip unit has a PCB, a light-emitting chip, and an image-sensing chip. The light-emitting chip and the image-sensing chip are electrically disposed on the PCB. The cover unit is covered on the image-sensing chip, and the cover unit has a first opening for exposing the image-sensing chip. The light-guiding unit is disposed on a bottom side of the cover unit, and the light-guiding unit has a surface having a reflective layer thereon with a concave structure. The surface and the reflective layer are formed a reflective surface for reflecting and condensing beams generated from the light-emitting chip. Therefore, the beams are reflected via the reflective surface to form first beams, and the first beams are reflected via the object surface to form second beams that project onto the image-sensing chip.Type: ApplicationFiled: May 21, 2007Publication date: July 24, 2008Inventors: Chia-Chu Cheng, Jau-Yu Chen, Shih-Heng Lin