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).

  • Patent number: 9727160
    Abstract: There is provided a displacement detection device including a light source, an image sensor and a processing unit. The light source provides light to a finger with a light source parameter. The image sensor receives reflected light from the finger, outputs valid images when the light source is being turned on and outputs dark images when the light source is being turned off. The processing unit determines a contact status according to one of the dark images and one of the valid images, and calculates a displacement according to two of the valid images to accordingly adjust the light source parameter.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: August 8, 2017
    Assignee: PixArt Imaging Inc.
    Inventors: Ren-Hau Gu, Yu-Hao Huang, Hsin-Chia Chen, Yen-Min Chang
  • Publication number: 20170215680
    Abstract: Disclosed is a computer readable recording media recording at least one program. An automatic clean machine control method applied to an automatic clean machine can be performed while the program is executed. The automatic clean machine control method comprises: (a) controlling the automatic clean machine to acquire a map; (b) selecting at least part of the map as a region to be cleaned; and (c) controlling the automatic clean machine to perform a first clean operation to the region to be cleaned.
    Type: Application
    Filed: June 6, 2016
    Publication date: August 3, 2017
    Inventor: Yen-Min Chang
  • Publication number: 20170223287
    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: April 19, 2016
    Publication date: August 3, 2017
    Inventor: Yen-Min Chang
  • Patent number: 9652052
    Abstract: There is provided an optical mini-mouse including a mouse case and a navigation module. The mouse case includes a valley and a flat region arranged along a length direction and the valley extends along a width direction. When the mouse case is rotated about the valley, the navigation module is configured to detect a rotation.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: May 16, 2017
    Assignee: PIXART IMAGING INC.
    Inventor: Yen-Min Chang
  • Patent number: 9626269
    Abstract: An electronic system that can automatically set a report rate, which comprises: a first electronic apparatus; a second electronic apparatus; a transmitting interface, wherein the second electronic apparatus transmits data to the first electronic apparatus via the transmitting interface; and a processing unit, for automatically setting a report rate of the second electronic apparatus or the transmitting interface according to a type of a software program that the first electronic apparatus executes.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: April 18, 2017
    Assignee: PixArt Imaging Inc.
    Inventors: Chun-Wei Chen, Yen-Min Chang, Yen-Chang Wang
  • Publication number: 20170076521
    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: November 4, 2016
    Publication date: March 16, 2017
    Inventors: Chih-Yuan CHUANG, Cheng-Nan TSAI, Yen-Min CHANG
  • Publication number: 20170061226
    Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.
    Type: Application
    Filed: November 9, 2016
    Publication date: March 2, 2017
    Inventors: Boon-How KOK, Keen-Hun LEONG, Ching-Geak CHAN, Chiang-Hee LIM, Chu-Leik HO, Hsin-Chia CHEN, Yen-Min CHANG
  • Patent number: 9536128
    Abstract: There is provided a thin biometric detection module, which is advantageous in being able to detect scattered light from body tissue after the light transmitting in the body tissue without additional optical mechanism placed on the semiconductor optical detection pixel of the detection module for biometric detection.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: January 3, 2017
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Yen-Min Chang
  • Publication number: 20160373625
    Abstract: An image capturing device is provided. The image capturing device includes a main body, an image capturing module and a rod. The image capturing module includes a lens and an image capturing unit. The main body includes a display module. The image capturing module is electrically connected to the main body. The rod is adjustably disposed between the image capturing module and the main body.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Applicant: ABILITY ENTERPRISE CO., LTD.
    Inventors: Yen-Min CHANG, Shih-Pin WANG
  • Publication number: 20160320865
    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: Application
    Filed: July 8, 2016
    Publication date: November 3, 2016
    Inventors: Hsin-Chia CHEN, Yen-Min CHANG
  • Publication number: 20160316115
    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: Application
    Filed: April 15, 2016
    Publication date: October 27, 2016
    Applicant: ABILITY ENTERPRISE CO., LTD.
    Inventors: Yen-Min CHANG, Ling-Wei YEH, Yi-Ping HUANG
  • Publication number: 20160306446
    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: Application
    Filed: March 31, 2016
    Publication date: October 20, 2016
    Inventors: CHING-LIN CHUNG, JR-SHEN YANG, CHIA-FU KE, YEN-MIN CHANG
  • Publication number: 20160285514
    Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.
    Type: Application
    Filed: June 8, 2016
    Publication date: September 29, 2016
    Inventors: Yung-Wei CHEN, Yen-Chang WANG, Yen-Min CHANG, Hsin-Chia CHEN
  • Patent number: 9423887
    Abstract: A method of adjusting sampling precision of a navigation device is disclosed in the present invention. The sampling precision represents counts per inch (CPI) or dots per inch (DPI) of the navigation device. The method includes determining a predetermined mode of the navigation device, obtaining resolution of a display, and adjusting the sampling precision according to the resolution and the predetermined mode, so that the sampling precision of the navigation device can be accordingly increased and decreased due to variation of the resolution.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: August 23, 2016
    Assignee: PixArt Imaging Inc.
    Inventors: Yen-Chang Wang, Chun-Wei Chen, Yen-Min Chang
  • Patent number: 9405460
    Abstract: A method used in a touch mouse includes: providing a touch area; using the touch area to detect a touch of a user's finger on the touch area to sense and generate a touch signal; and, generating a corresponding key output signal to a host by simulating a condition of pressing at least a key of a keyboard device according to the touch signal.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: August 2, 2016
    Assignee: PixArt Imaging Inc.
    Inventors: Yin-Hui Lee, Yen-Min Chang
  • Publication number: 20160161328
    Abstract: A packaged optical device includes a light source device emitting light to an object surface, a sensor chip receiving reflective light reflected from the object surface, and a non-lens transparency layer located in front of the sensor chip. The light and the reflective light have a first main optic axis and a second main optic axis, respectively, and the first main optic axis and the second main optic axis are configured to form the specular reflection configuration, thereby enhancing images received by the sensor chip. The non-lens transparency layer has a zone passed through by the second main optic axis, and transmittance of the zone is lower than that of other zones of the non-lens transparency layer, thereby preventing the sensor chip from being saturated.
    Type: Application
    Filed: February 18, 2016
    Publication date: June 9, 2016
    Inventors: Chi-chih SHEN, Hui-Hsuan CHEN, Yen-Min CHANG
  • Publication number: 20160154200
    Abstract: An image module and an electronic device using the same are provided. The image module includes a connecting element and a lens structure. The connecting element includes an inner ring, an outer ring and a connecting portion. The connecting portion connects the inner ring and the outer ring. The lens structure is mounted in the inner ring.
    Type: Application
    Filed: October 5, 2015
    Publication date: June 2, 2016
    Applicant: ABILITY ENTERPRISE CO., LTD.
    Inventors: Yen-Min CHANG, Chien-Hsin LIEN, Chih-Chieh YU, Cheng-En LU, Hsien-Feng LIN
  • Patent number: 9354699
    Abstract: An input device for transmitting a signal between a terminal device and an external device is disclosed in the present invention. The input device includes an input unit, a terminal communication unit, a wireless transmission unit and a processor. The input unit generates an operation signal. The terminal communication unit establishes a connection to the terminal device. The wireless transmission unit establishes a connection to the external device for receiving a first datum signal outputted from the external device. The processor is electrically connected to the input unit, the terminal communication unit and the wireless transmission unit. The processor respectively transmits the operation signal and the first datum signal to the terminal device via the terminal communication unit.
    Type: Grant
    Filed: January 1, 2013
    Date of Patent: May 31, 2016
    Assignee: PixArt Imaging Inc.
    Inventors: Yen-Min Chang, Chun-Wei Chen
  • Patent number: 9335841
    Abstract: A computer readable media having at least one program code recorded thereon. An interference image determining method can be performed when the program code is read and executed. The interference image determining method comprises: (a) controlling a light source to illuminate an object on a detecting surface to generate an image; (b) controlling a sensor to catch a current frame of the image; (c) utilizing an image characteristic included in the current frame to determine a interference image part of the current frame; and (d) updating a defined interference image according to the determined interference image part.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: May 10, 2016
    Assignee: PixArt Imaging Inc.
    Inventors: Hsin-Chia Chen, Yen-Min Chang, Yu-Hao Huang, Wen-Han Yao, Ching-Lin Chung, Yung-Chang Lin, Tsung-Fa Wang, Ming-Tsan Kao
  • Patent number: 9319216
    Abstract: An operating method of a human interface device includes the steps of: counting an oversampling number of an oversampling signal and estimating an accumulated bit number of a USB data stream according to the oversampling signal; calculating a difference between the oversampling number and M times of the accumulated bit number when the accumulated bit number is larger than a predetermined value; and calibrating detected information obtained operating with the oversampling signal according to the correction parameter.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: April 19, 2016
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Hsiang-Sheng Liu, Yen-Min Chang