Patents by Inventor Yen Min CHANG

Yen Min 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).

  • Image sensing circuit and method capable of obtaining higher image brightness dynamic range
    Patent number: 10110836
    Abstract: An image sensing circuit includes floating node, switch circuit, capacitor(s), and counting circuit. The floating node receives image electric charge from a photosensitive pixel. The switch circuit is coupled between floating node and capacitor(s) to dynamically connect and disconnect floating node and capacitor(s). The capacitor(s) include(s) first terminal(s) connected to switch circuit and second terminal(s) connected to ground. The counting circuit counts the number of charging and discharging behavior of capacitor(s) according to dynamic switches of switch circuit wherein the switch circuit dynamically switches to make capacitor(s) be charged and discharged dynamically in response to one exposure time period to receive energy of image electric charge which is determined by the number of charging and discharging behavior of the capacitor(s) and the capacitor(s)' potential value measured finally.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 23, 2018
    Assignee: PixArt Imaging Inc.
    Inventor: Yen-Min Chang
  • Biometric detection module with denoising function and biometric detection method thereof
    Patent number: 10092244
    Abstract: A biometric detection module including a light source module, a detection region and a control module is provided. The light source module is configured to emit green light, red light and IR light in a time division manner to illuminate a skin surface. The detection region is configured to detect penetration light emitted from the light source module for illuminating the skin surface and passing through body tissues to correspondingly generate a green light signal, a red light signal and an IR light signal. The control module is configured to determine a filtering parameter according to the green light signal to accordingly filter the red light signal and the IR light signal, and calculate a biometric characteristic according to at least one of the green light signal, a filtered red light signal and a filtered IR light signal.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: October 9, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Chih-Yuan Chuang, Cheng-Nan Tsai, Ming-Tsan Kao, Ren-Hau Gu, Yen-Min Chang
  • Individualized control system utilizing biometric characteristic
    Patent number: 10089802
    Abstract: A control system including a detection device and a control host is provided. The detection device is configured to detect a biometric characteristic to accordingly identify a user ID, and output an ID signal according to the user ID. The control host is configured to receive the ID signal to accordingly perform an individualized control associated with the user ID.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 2, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Yen-Min Chang, Chih-Yuan Chuang
  • AUTOMATIC CLEAN MACHINE CONTROL METHOD AND AUTOMATIC CLEAN MACHINE
    Publication number: 20180255998
    Abstract: A computer readable recording media recording at least one program. An automatic clean machine control method is performed if the program is executed, which comprises: (a) input a drawing or a picture to an automatic clean machine by a first user, wherein the automatic clean machine acquires a map based on the drawing or the picture; (b) directly selecting a region to be cleaned on the map; and (c) controlling the automatic clean machine to perform a first clean operation to the region to be cleaned based on the map.
    Type: Application
    Filed: May 15, 2018
    Publication date: September 13, 2018
    Inventor: Yen-Min Chang
  • SAFETY MONITORING APPARATUS AND METHOD THEREOF FOR HUMAN-DRIVEN VEHICLE
    Publication number: 20180253094
    Abstract: A safety monitoring apparatus and method thereof for human-driven vehicle are provided. The safety monitoring apparatus includes a sensing unit, a processing unit, and a warning unit. The sensing unit and the warning unit are electrically connected to the processing unit, respectively. The sensing unit is arranged on a steering member of the human-driven vehicle and is used for sensing whether the steering member is in contact with a hand of a driver and generating a sensing signal accordingly. The processing unit determines whether the hand of the driver is placed on the steering member. The warning unit is used for generating a safety warning message. When the processing unit determines that the hand of the driver has not been placed on the steering member according to the sensing signal, the processing unit drives the warning unit to generate the safety warning message to warn the driver.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: YEN-MIN CHANG, CHIH-YUAN CHUANG
  • Method for automatically focusing on specific movable object, photographic apparatus including automatic focus function, and computer readable storage medium for storing automatic focus function program
    Patent number: 10067407
    Abstract: A method capable of performing an automatic focus function upon a specific movable object in a real-time manner, the method being applicable to a photographic apparatus with the automatic focus function, includes: capturing real-time image within a field of view (FOV) of a lens; comparing images of a plurality of image areas of the real-time image with a feature image of the specific movable object to identify an image area corresponding to the feature image of the specific movable object; and, performing automatic focus on the identified image area.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 4, 2018
    Assignee: PIXART IMAGING INC.
    Inventor: Yen-Min Chang
  • INDIVIDUALIZED CONTROL SYSTEM UTILIZING BIOMETRIC CHARACTERISTIC
    Publication number: 20180247043
    Abstract: A control system including a detection device and a control host is provided. The detection device is configured to detect a biometric characteristic to accordingly identify a user ID, and output an ID signal according to the user ID. The control host is configured to receive the ID signal to accordingly perform an individualized control associated with the user ID.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Yen-Min Chang, Chih-Yuan Chuang
  • Optical navigation chip, optical navigation module and optical encoder
    Patent number: 10061404
    Abstract: The present disclosure illustrates an optical navigation chip. The optical navigation chip is disposed on an optical navigation module. The optical navigation module includes a light-emitting unit. The light-emitting unit provides a light beam to irradiate a surface of a displacement generating unit. The light beam has a low divergence angle to reduce scattering. The optical navigation chip includes a sensing array and a displacement calculating unit. The sensing array is disposed corresponding to the surface. The sensing array receives a reflected light beam which the surface reflects, and captures an image once every capturing interval based upon the reflected light beam. The displacement calculating unit calculates a relative displacement between the optical navigation chip and the surface according to the images.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: August 28, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Ching-Lin Chung, J R-Shen Yang, Chia-Fu Ke, Yen-Min Chang
  • Electronic device with high electrostatic protection
    Patent number: 10060789
    Abstract: An electronic device including a substrate and an optoelectronic device package is provided. The optoelectronic device package includes a light source, an image sensor and a plurality of connecting pins. The light source is configured to emit light toward a direction of a bottom surface of the optoelectronic device package. The image sensor is configured to receive reflected light from the direction of the bottom surface. The connecting pins are bended toward an opposite direction of the direction of the bottom surface and electrically connected to the substrate thereby increasing a discharge path of the electrostatic discharge.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 28, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Tsung-Fa Wang, Yen-Min Chang, Ching-Lin Chung
  • Image-capturing device configured for a 3D space optical pointing apparatus with adjustable resolution setting
    Patent number: 10025395
    Abstract: An image-capturing device configured for a 3D space optical pointing apparatus, comprising: a plurality of adjacently arranged image-sensing units configured to sense an image of a 3D space and generate successive plane frame images, each comprising a plurality of sensing signals respectively, being adapted to evaluate a velocity and a position relative to a surface of the optical pointing apparatus. The velocity and position information can be applied to adjust the resolution setting of the image-capturing device.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: July 17, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Hsin-Chia Chen, Yen-Min Chang
  • Image capturing device with slantwise surface
    Patent number: 10021279
    Abstract: An image capturing device includes a first housing and a second housing. The first housing includes a first axis and a first slantwise surface. The second housing includes a second axis and a second slantwise surface. When the first housing is at a first state, the first axis and the second axis are substantially parallel to each other. When the first housing is not at the first state, the first axis and the second axis are nonparallel.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 10, 2018
    Assignee: ABILITY ENTERPRISE CO., LTD.
    Inventors: Yen-Min Chang, Ling-Wei Yeh, Yi-Ping Huang
  • Individualized control system utilizing biometric characteristic
    Patent number: 9984222
    Abstract: A control system including a detection device and a control host is provided. The detection device is configured to detect a biometric characteristic to accordingly identify a user ID, and output an ID signal according to the user ID. The control host is configured to receive the ID signal to accordingly perform an individualized control associated with the user ID.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: May 29, 2018
    Assignee: PIXART IMAGING INC
    Inventors: Chih-Yuan Chuang, Cheng-Nan Tsai, Yen-Min Chang
  • METHOD AND APPARATUS FOR USE IN CONFIGURING OPTICAL INPUT DEVICE AND RELATED OPTICAL INPUT SYSTEM
    Publication number: 20180136739
    Abstract: A method for configuring an optical input device is provided. The optical input device includes a movable unit and a sensing device. The movable unit is arranged to move within a predetermined range. The sensing device is arranged to detect a position within the predetermined range at which the movable unit is located. The method includes: adjusting an optical setting of the sensing device to obtain an optimal dynamic range of the sensing device; and configuring a valid input threshold for the optical input device based on the optimal dynamic range.
    Type: Application
    Filed: June 4, 2017
    Publication date: May 17, 2018
    Inventors: Tsung-Fa Wang, Yen-Min Chang, Shih-Wei Kuo
  • Electronic device with waterproof structure
    Patent number: 9958298
    Abstract: An electronic device with waterproof structure includes an assembly and a manipulation member movably disposed on an outer surface of the assembly. The assembly includes a case and an optical detection module. The case defines a waterproof space and has a translucent region. The optical detection module is arranged in the waterproof space. The optical detection module has a lighting unit and a sensor array. Light emitted from the lighting unit enables to travel out of the waterproof space by penetrating through the translucent region. At least part of the manipulation member is corresponding in position to the translucent region. The lighting unit is configured to emit light onto the manipulation member, and the sensor array is configured to receive the light reflected from the manipulation member.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 1, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Jr-Shen Yang, Ching-Lin Chung, Yen-Min Chang
  • NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM CAN PERFORM OPTICAL MOVEMENT QUALITY DETERMINING METHOD AND RELATED OPTICAL MOVEMENT DETECTING SYSTEM
    Publication number: 20180113517
    Abstract: A non-transitory computer readable recording medium, for storing at least one program, an optical movement quality determining method is performed if the program is executed, wherein the optical movement quality determining method is applied to an optical movement detecting apparatus configured to generate optical information and to determine a relative location between an object and the optical movement detecting apparatus, wherein the optical movement quality determining method comprises: (a) determining information quality of the optical information; and (b) generating at least one movement quality reminding message according to a relation between the information quality and a quality threshold value.
    Type: Application
    Filed: February 8, 2017
    Publication date: April 26, 2018
    Inventors: Chung-Ting Yang, Yen-Min Chang
  • Camera device without image displaying function
    Patent number: 9942463
    Abstract: A camera device without an image displaying function which is adapted to assemble with a portable electronic device with a vision displaying module is disclosed in the present invention. The camera device is electrically connected to the portable electronic device via wire/wireless connection. The camera device includes a base, a lens module and at least one touch navigation module. The base includes a surrounding component whereinside the lens module is disposed. The lens module includes a lens assembly and a digital processing unit. The touch navigation module is disposed on an outer surface of the surrounding component and electrically connected to the lens module. The touch navigation module detects an input command to trigger the lens assembly to capture an image, or controls parameters of an adjustable mode of the lens assembly via the digital processing unit.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: April 10, 2018
    Assignee: PixArt Imaging Inc.
    Inventors: Shih-Wei Kuo, Feng-Cheng Yang, Yi-Min Liu, Yen-Min Chang
  • HEART RATE DETECTION ARCHITECTURE
    Publication number: 20180092604
    Abstract: There is provided a system architecture including a PPG hardware module and a MEMS hardware module. The PPG hardware module processes PPG raw data, which is generally composed of analog signals or digital signals. The PPG hardware module filters the raw data for later digital calculation to, for example, find out frequency signals with higher peak values. The PPG hardware module then outputs the selected frequency signals to an MCU for heart rate calculation. The MEMS hardware module receives MEMS raw data from a motion detector made of MEMS elements. The MEMS raw data represents motion status of a user that could possibly affect the heart rate determination result. The MEMS hardware module filters the raw data for later digital calculation to find out frequency signals with higher peak values caused by motion.
    Type: Application
    Filed: November 21, 2017
    Publication date: April 5, 2018
    Inventors: Ren-Hau GU, Yen-Min CHANG, Ming-Chang LI, Chih-Hsin LIN
  • SENSING DEVICE, ELECTRONIC SYSTEM AND SENSING METHOD
    Publication number: 20180087985
    Abstract: A sensing device is provided in the present invention. The sensing device includes a first conductive element, a second conductive element, a processing unit, a cover and a base. The processing electrically connects to the first conductive element and the second conductive element. The cover has an opening. The base forms a space with the cover, and the first conductive element and the second conductive element are set on the base.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 29, 2018
    Inventors: Yen-Min Chang, Cheng-En Lu, Yen-Chen Lin
  • IMAGE SENSING CIRCUIT AND METHOD CAPABLE OF OBTAINING HIGHER IMAGE BRIGHTNESS DYNAMIC RANGE
    Publication number: 20180084207
    Abstract: An image sensing circuit includes floating node, switch circuit, capacitor(s), and counting circuit. The floating node receives image electric charge from a photosensitive pixel. The switch circuit is coupled between floating node and capacitor(s) to dynamically connect and disconnect floating node and capacitor(s). The capacitor(s) include(s) first terminal(s) connected to switch circuit and second terminal(s) connected to ground. The counting circuit counts the number of charging and discharging behavior of capacitor(s) according to dynamic switches of switch circuit wherein the switch circuit dynamically switches to make capacitor(s) be charged and discharged dynamically in response to one exposure time period to receive energy of image electric charge which is determined by the number of charging and discharging behavior of the capacitor(s) and the capacitor(s)' potential value measured finally.
    Type: Application
    Filed: November 13, 2017
    Publication date: March 22, 2018
    Inventor: Yen-Min Chang
  • LIGHT SENSOR
    Publication number: 20180024655
    Abstract: A control system, a mouse and a control method thereof are provided. The control system comprises a dongle and the mouse. The dongle is wiredly connected to a host and has a first light source for emitting a first light. The mouse is wirelessly connected to the dongle and has a transmitter, a second light source for emitting a second light, an optical sensor and a processor. The optical sensor senses the first light at a first time interval to generate a first sensing signal and then also, senses the second light at a second time interval to generate a second sensing signal. The processor generates a first control signal and a second control signal according to the first sensing signal and the second sensing signal, respectively, and transmits them to the dongle via the transmitter so that the host receives the first and second control signals via the dongle.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 25, 2018
    Inventors: Chun-Wei CHEN, Yen-Min CHANG, Shih-Wei KUO, Ching-Lin CHUNG