Patents by Inventor Tom Chang

Tom 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: 11150129
    Abstract: An optical sensing module has a light source and an optical sensing integrated circuit device. The optical sensing integrated circuit device has an optical sensor and a grating. The optical sensor and the light source are arranged along a first direction. The grating is formed over the optical sensor and has multiple parallel wires. The multiple wires are perpendicular to the first direction.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: October 19, 2021
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Yi-Yung Chen, Kao-Pin Wu, Tom Chang
  • Patent number: 10684122
    Abstract: A complementary metal-oxide-semiconductor depth sensor element having a photogate formed in a photosensitive area on a substrate. A first transfer gate and a second transfer gate are formed respectively on two sides of the photogate in intervals. A first floating doped area and a second floating doped area are formed respectively on the outer sides of the first transfer gate and the second transfer gate. A semiconductor area is formed on the substrate. A lightly doped region is formed on the semiconductor area. The photogate, the first and second transfer gates and the first and second floating doped area are commonly formed on the lightly doped region. With the lightly doped region, the linear performance that the majority carriers move in the photogate is also affected to achieve the purpose for increasing the reaction rate.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 16, 2020
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Kao-Pin Wu, Tom Chang
  • Patent number: 10558270
    Abstract: A method for determining non-contact gesture is applied to a device for the same. The device has an image sensor to detect an image sensing data, an inertial measurement sensor to detect an inertial sensing data, and a processor to determine if an object data is detected and to determine if an inertial event is occurred. The image sensing data in the same and/or adjacent image frame with the inertial events are excluded so that the image sensing data used to determine the gesture are those not influenced by the inertial events. Therefore, the accuracy of determining the gesture is enhanced.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: February 11, 2020
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Chan-Peng Lo, Kao-Pin Wu, Tom Chang
  • Publication number: 20200025556
    Abstract: A complementary metal-oxide-semiconductor depth sensor element having a photogate formed in a photosensitive area on a substrate. A first transfer gate and a second transfer gate are formed respectively on two sides of the photogate in intervals. A first floating doped area and a second floating doped area are formed respectively on the outer sides of the first transfer gate and the second transfer gate. A semiconductor area is formed on the substrate. A lightly doped region is formed on the semiconductor area. The photogate, the first and second transfer gates and the first and second floating doped area are commonly formed on the lightly doped region. With the lightly doped region, the linear performance that the majority carriers move in the photogate is also affected to achieve the purpose for increasing the reaction rate.
    Type: Application
    Filed: December 19, 2018
    Publication date: January 23, 2020
    Applicant: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: KAO-PIN WU, TOM CHANG
  • Publication number: 20190368923
    Abstract: An optical sensing module has a light source and an optical sensing integrated circuit device. The optical sensing integrated circuit device has an optical sensor and a grating. The optical sensor and the light source are arranged along a first direction. The grating is formed over the optical sensor and has multiple parallel wires. The multiple wires are perpendicular to the first direction.
    Type: Application
    Filed: May 7, 2019
    Publication date: December 5, 2019
    Applicant: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: YI-YUNG CHEN, KAO-PIN WU, TOM CHANG
  • Patent number: 10091127
    Abstract: Embodiments of the present application relate to a method, apparatus, and system for enrolling a mobile device with an enterprise network. The method includes receiving, from a mobile device, a request to access an enrollment address. In response to receiving the request to access the enrollment address, determining whether the mobile device is pre-enrolled with the enterprise network, and in the event that the mobile device from which the request to access the enrollment address is received corresponds to the mobile device that is pre-enrolled with the enterprise network, pushing user-specific settings to the mobile device.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 2, 2018
    Assignee: MOBILE IRON, INC.
    Inventors: Tom Chang, Mansu Kim
  • Patent number: 10036810
    Abstract: A method for sensing depth of an object in three-dimensional space a Time-Of-Flight Sensing procedure and a Proximity-Sensing procedure are respectively operated in the same one period of time. The obtained information of the two procedures are manipulated to acquire the depth information of the measured object. With the result of the Time-Of-Flight Sensing procedure having high accuracy and the result of the Proximity-Sensing procedure having high resolution, the acquired depth information of the measured object is more precise.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 31, 2018
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Tom Chang, Kao-Pin Wu
  • Publication number: 20180145924
    Abstract: Embodiments of the present application relate to a method, apparatus, and system for enrolling a mobile device with an enterprise network. The method includes receiving, from a mobile device, a request to access an enrollment address. In response to receiving the request to access the enrollment address, determining whether the mobile device is pre-enrolled with the enterprise network, and in the event that the mobile device from which the request to access the enrollment address is received corresponds to the mobile device that is pre-enrolled with the enterprise network, pushing user-specific settings to the mobile device.
    Type: Application
    Filed: November 16, 2017
    Publication date: May 24, 2018
    Inventors: Tom Chang, Mansu Kim
  • Patent number: 9859313
    Abstract: A complementary metal-oxide-semiconductor depth sensor element comprises a photogate formed in a photosensitive area on a substrate. A first transfer gate and a second transfer gate are formed respectively on two sides of the photogate in intervals. A first floating doped area and a second floating doped area are formed respectively on the outer sides of the first transfer gate and the second transfer gate. The first and second floating doped regions have dopants of a first polarity and the semiconductor area has dopants of a second polarity opposite to the first polarity. Since the photogate and at least parts of the first and second transfer gates connect to the same semiconductor area and no other dopants of polarity opposite to the second polarity. Therefore, the majority carriers from the photogate excited by lights drift, but not diffuse, to transfer to the first and second transfer gates.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: January 2, 2018
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Tom Chang, Kao-Pin Wu
  • Patent number: 9860187
    Abstract: Embodiments of the present application relate to a method, apparatus, and system for enrolling a mobile device with an enterprise network. The method includes receiving, from a mobile device, a request to access an enrollment address. In response to receiving the request to access the enrollment address, determining whether the mobile device is pre-enrolled with the enterprise network, and in the event that the mobile device from which the request to access the enrollment address is received corresponds to the mobile device that is pre-enrolled with the enterprise network, pushing user-specific settings to the mobile device.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: January 2, 2018
    Assignee: MOBILE IRON, INC.
    Inventors: Tom Chang, Mansu Kim
  • Patent number: 9778756
    Abstract: An optical sensor module is provided. The optical sensor module includes a light source, a first lens and a sensor device. The light source is arranged for generating a light signal. The first lens has a first optical center axis. The sensor device is disposed in correspondence with one side of the first lens. The sensor device includes a light sensitive area, and a center of the light sensitive area deviates from the first optical center axis. The sensor device is arranged for receiving a reflected signal reflected from an object in response to the light signal, and accordingly generating a sensing result.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: October 3, 2017
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Hsin-Yueh Sung, Yi-Yung Chen, Tom Chang, Kao-Pin Wu, Cheng-Ta Chuang, Wei-Te Hsu
  • Patent number: 9667883
    Abstract: A three-dimensional image sensing device includes a light source, a sensing module, and a signal processing module. The sensing module includes a pixel array, a control unit, and a light source driver. The light source generates flashing light with a K multiple of a frequency of flicker noise or a predetermined frequency. The pixel array samples the flashing light to generate a sampling result. The control unit executes an image processing on the sampling result to generate a spectrum. The light source driver drives the light source according to the K multiple of the frequency or the predetermined frequency. The signal processing module generates the K multiple of the frequency according to the spectrum, or outputs the predetermined frequency to the light source driver, and generates depth information according to a plurality of first images/a plurality of second images during turning-on/turning-off of the light source included in the sampling result.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 30, 2017
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Tom Chang, Kao-Pin Wu, Kun-Huang Tsai, Shang-Ming Hung, Cheng-Ta Chuang, Chih-Jen Fang, Tseng Kuo-Tsai
  • Publication number: 20170131790
    Abstract: An optical sensor module is provided. The optical sensor module includes a light source, a first lens and a sensor device. The light source is arranged for generating a light signal. The first lens has a first optical center axis. The sensor device is disposed in correspondence with one side of the first lens. The sensor device includes a light sensitive area, and a center of the light sensitive area deviates from the first optical center axis. The sensor device is arranged for receiving a reflected signal reflected from an object in response to the light signal, and accordingly generating a sensing result.
    Type: Application
    Filed: December 27, 2016
    Publication date: May 11, 2017
    Applicant: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Hsin-Yueh Sung, Yi-Yung Chen, Tom Chang, Kao-Pin Wu, Cheng-Ta Chuang, Wei-Te Hsu
  • Patent number: 9639167
    Abstract: A control method of an electronic apparatus is provided. The electronic apparatus has a non-contact gesture sensitive region. The control method includes: identifying at least one object type of at least one non-contact object within the non-contact gesture sensitive region in a plurality of object types; determining respective numbers of non-contact objects corresponding to the identified at least one object type; detecting motion information of the at least one non-contact object within the non-contact gesture sensitive region; recognizing a non-contact gesture corresponding to the at least one non-contact object according to the identified at least one object type, the respective numbers of non-contact objects and the motion information; and enabling the electronic apparatus to perform a specific function according to the non-contact gesture.
    Type: Grant
    Filed: May 25, 2015
    Date of Patent: May 2, 2017
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Tom Chang, Kao-Pin Wu, Chih-Jen Fang, Chan-Peng Lo, Cheng-Ta Chuang
  • Publication number: 20170097683
    Abstract: A method for determining non-contact gesture is applied to a device for the same. The device has an image sensor to detect an image sensing data, an inertial measurement sensor to detect an inertial sensing data, and a processor to determine if an object data is detected and to determine if an inertial event is occurred. The image sensing data in the same and/or adjacent image frame with the inertial events are excluded so that the image sensing data used to determine the gesture are those not influenced by the inertial events. Therefore, the accuracy of determining the gesture is enhanced.
    Type: Application
    Filed: September 12, 2016
    Publication date: April 6, 2017
    Applicant: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Chan-Peng Lo, Kao-Pin Wu, Tom Chang
  • Publication number: 20170074643
    Abstract: A complementary metal-oxide-semiconductor depth sensor element comprises a photogate formed in a photosensitive area on a substrate. A first transfer gate and a second transfer gate are formed respectively on two sides of the photogate in intervals. A first floating doped area and a second floating doped area are formed respectively on the outer sides of the first transfer gate and the second transfer gate. The first and second floating doped regions have dopants of a first polarity and the semiconductor area has dopants of a second polarity opposite to the first polarity. Since the photogate and at least parts of the first and second transfer gates connect to the same semiconductor area and no other dopants of polarity opposite to the second polarity. Therefore, the majority carriers from the photogate excited by lights drift, but not diffuse, to transfer to the first and second transfer gates.
    Type: Application
    Filed: June 27, 2016
    Publication date: March 16, 2017
    Applicant: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Tom Chang, Kao-Pin Wu
  • Publication number: 20170074983
    Abstract: A method for sensing depth of an object in three-dimensional space a Time-Of-Flight Sensing procedure and a Proximity-Sensing procedure are respectively operated in the same one period of time. The obtained information of the two procedures are manipulated to acquire the depth information of the measured object. With the result of the Time-Of-Flight Sensing procedure having high accuracy and the result of the Proximity-Sensing procedure having high resolution, the acquired depth information of the measured object is more precise.
    Type: Application
    Filed: May 17, 2016
    Publication date: March 16, 2017
    Applicant: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Tom Chang, Kao-Pin Wu
  • Patent number: 9569011
    Abstract: An optical sensor module is provided. The optical sensor module includes a light source, a first lens and a sensor device. The light source is arranged for generating a light signal. The first lens has a first optical center axis. The sensor device is disposed in correspondence with one side of the first lens. The sensor device includes a light sensitive area, and a center of the light sensitive area deviates from the first optical center axis. The sensor device is arranged for receiving a reflected signal reflected from an object in response to the light signal, and accordingly generating a sensing result.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: February 14, 2017
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Hsin-Yueh Sung, Tom Chang, Kao-Pin Wu, Cheng-Ta Chuang, Wei-Te Hsu
  • Patent number: 9466325
    Abstract: Provided herein are apparatuses and methods related to creating a patterned resist layer on a substrate; selectively treating at least a resist-contacting layer of the substrate in contact with the patterned resist layer to create a patterned growth guiding mechanism and growing patterned magnetic features guided by the patterned growth guiding mechanism.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: October 11, 2016
    Assignee: Seagate Technology LLC
    Inventors: Thomas P. Nolan, Kim Y. Lee, Shuaigang Xiao, Tom Chang, Yingguo Peng
  • Patent number: 9377355
    Abstract: An optical sensor apparatus includes an infrared light generating device, N first detection devices, a second detection device and a processing circuit. In addition to detecting infrared light, the N first detection devices further detect N different visible wavelength ranges, respectively. The second detection device is optically shielded from visible light and arranged for detecting infrared light. In a first sensing mode, the processing circuit obtains color information according to N first detection signals generated by the N first detection devices and a reference signal generated by the second detection device. In a second sensing mode, the N first detection devices and the second detection device generate (N+1) second detection signals when the infrared light generating device is activated, and generate (N+1) third detection signals when the infrared light generating device is deactivated.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: June 28, 2016
    Assignee: EMINENT ELECTRONIC TECHNOLOGY CORP. LTD.
    Inventors: Tom Chang, Kao-Pin Wu, Shang-Ming Hung, Chih-Jen Fang, Cheng-Ta Chuang