Patents by Inventor YING-HWA TANG

YING-HWA TANG 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: 11023057
    Abstract: A stylus structure includes a stylus housing unit, a stylus cover unit, a control unit, and a barrier unit. The stylus housing unit has an accommodating space and an opening that are in spatial communication with each other. The stylus cover unit is detachably sleeved on the stylus housing unit. The control unit includes a processing component and a trigger component electrically connected to the processing component. The barrier unit in the accommodating space contacts the trigger component, and therefore the processing component is in a power OFF state. In another aspect, the stylus structure includes a stylus housing unit, a control unit, and a barrier unit. The control unit includes a processing component and electrically connects to a trigger component. The barrier unit in the stylus housing unit contacts the trigger component, and therefore the processing component is in a power OFF state.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: June 1, 2021
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventors: Yi-Chih Chang, Ju-Ming Lin, Ying-Hwa Tang
  • Publication number: 20210124436
    Abstract: A stylus structure includes a stylus housing unit, a stylus cover unit, a control unit, and a barrier unit. The stylus housing unit has an accommodating space and an opening that are in spatial communication with each other. The stylus cover unit is detachably sleeved on the stylus housing unit. The control unit includes a processing component and a trigger component electrically connected to the processing component. The barrier unit in the accommodating space contacts the trigger component, and therefore the processing component is in a power OFF state. In another aspect, the stylus structure includes a stylus housing unit, a control unit, and a barrier unit. The control unit includes a processing component and electrically connects to a trigger component. The barrier unit in the stylus housing unit contacts the trigger component, and therefore the processing component is in a power OFF state.
    Type: Application
    Filed: February 27, 2020
    Publication date: April 29, 2021
    Inventors: YI-CHIH CHANG, JU-MING LIN, YING-HWA TANG
  • Patent number: 10895930
    Abstract: A message erasing device and a message erasing system, and the message erasing system includes a message erasing device and a message receiving device. The message erasing device includes a device body, a processing module, and an erasing module. The device body touches the message receiving device by a clearing unit and erases an actual message of the message receiving device, and the movable unit touches the processing module according to the clearing unit touching the message receiving device, so that the processing module generates an erasing signal to the message receiving device. The message receiving device provides a clear signal to an electronic device according to the erasing signal.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: January 19, 2021
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventors: Yi-Chih Chang, Ying-Hwa Tang
  • Publication number: 20200272253
    Abstract: A pressure sensing mouse including a pressure plate, a main body, a chassis, a main circuit board, and a pressure sensing component disposed on the main circuit board is provided. A central portion of an inner side of the pressure plate extends downwardly to provide a pressure spring element that is in direct contact with the pressure sensing component throughout the main body. The pressure sensing mouse is used in a software game for a tapping force type. When the user taps the pressure sensing mouse with the palm of a hand, an object in a corresponding software game will correspondingly generate a pressed game display result in the screen, therefore, better gaming experiences can be provided for users.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 27, 2020
    Inventors: WEN-CHI CHEN, YING-HWA TANG, CHIA-JUI YEH
  • Publication number: 20200050340
    Abstract: A message erasing device and a message erasing system, and the message erasing system includes a message erasing device and a message receiving device. The message erasing device includes a device body, a processing module, and an erasing module. The device body touches the message receiving device by a clearing unit and erases an actual message of the message receiving device, and the movable unit touches the processing module according to the clearing unit touching the message receiving device, so that the processing module generates an erasing signal to the message receiving device. The message receiving device provides a clear signal to an electronic device according to the erasing signal.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Inventors: YI-CHIH CHANG, YING-HWA TANG
  • Publication number: 20170308190
    Abstract: A capacitive stylus with a power saving apparatus is disclosed. The capacitive stylus uses a controller to control a stylus circuit to output a high voltage when the capacitive stylus accelerates or moves so as to save electrical power of the capacitive stylus.
    Type: Application
    Filed: May 23, 2016
    Publication date: October 26, 2017
    Inventors: Ying Hwa Tang, Chih Hung Huang, A-Li Wong
  • Patent number: 9766687
    Abstract: A capacitive stylus with a power saving apparatus is disclosed. The capacitive stylus uses a controller to output signals to control a power circuit to regulate or convert a voltage from a power source to different working voltages for the controller so as to save electrical power of the capacitive stylus.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 19, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventors: Ying Hwa Tang, A-Li Wong
  • Publication number: 20170242501
    Abstract: A capacitive stylus with a replaceable conductive nib is disclosed. The capacitive stylus comprises a combination of a replaceable conductive nib and a tip.
    Type: Application
    Filed: March 14, 2016
    Publication date: August 24, 2017
    Inventors: Ying-Hwa Tang, Yi-Chih Chang, Hsin-Chiang Ho
  • Patent number: 9733733
    Abstract: A capacitive stylus, as an inputting device of a touch sensitive device, comprises a control circuit for emitting signals to the touch sensitive device, a power for providing electricity to the control circuit, two charging rings electrically connecting to the power, and a first magnetic member having a first magnetic pole and a magnetic second pole. The touch sensitive device comprises a recess for placing the capacitive stylus, two charging pads arranged within the recess for connecting with the two charging rings, a charging circuit for charging the power of the capacitive stylus via the two charging pads, and a second magnetic member having a first magnetic pole and a second magnetic pole. The first magnetic member and the second magnetic member assure the charging operation can be correctly proceeded.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 15, 2017
    Assignee: Waltop International Corporation
    Inventors: Ying Hwa Tang, A-Li Wong
  • Publication number: 20170123474
    Abstract: A capacitive stylus with a power saving apparatus is disclosed. The capacitive stylus uses a controller to output signals to control a power circuit to regulate or convert a voltage from a power source to different working voltages for the controller so as to save electrical power of the capacitive stylus.
    Type: Application
    Filed: December 15, 2015
    Publication date: May 4, 2017
    Inventors: YING HWA TANG, A-Li Wong
  • Patent number: 9639182
    Abstract: A capacitive stylus, as an inputting device of a touch sensitive device, comprises a pen and a detachable eraser. The pen comprises a tip for writing on a screen of the touch sensitive device, a control circuit for emitting signals to the touch sensitive device, and a battery for providing electricity to the control circuit. The eraser includes an erasing circuit and a first end to combine with the pen, so that the erasing circuit electrically connects with the control circuit. The eraser includes a second end that is compressible, so that the control circuit can emit an erasing signal to the touch sensitive device.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 2, 2017
    Assignee: Waltop International Corporation
    Inventors: Ying Hwa Tang, A-Li Wong
  • Publication number: 20170108954
    Abstract: A capacitive stylus, as an inputting device of a touch sensitive device, comprises a pen and a detachable eraser. The pen comprises a tip for writing on a screen of the touch sensitive device, a control circuit for emitting signals to the touch sensitive device, and a battery for providing electricity to the control circuit. The eraser includes an erasing circuit and a first end to combine with the pen, so that the erasing circuit electrically connects with the control circuit. The eraser includes a second end that is compressible, so that the control circuit can emit an erasing signal to the touch sensitive device.
    Type: Application
    Filed: December 4, 2015
    Publication date: April 20, 2017
    Inventors: YING HWA TANG, A-Li Wong
  • Publication number: 20170108952
    Abstract: A capacitive stylus, as an inputting device of a touch sensitive device, comprises a control circuit for emitting signals to the touch sensitive device, a power for providing electricity to the control circuit, two charging rings electrically connecting to the power, and a first magnetic member having a first magnetic pole and a magnetic second pole. The touch sensitive device comprises a recess for placing the capacitive stylus, two charging pads arranged within the recess for connecting with the two charging rings, a charging circuit for charging the power of the capacitive stylus via the two charging pads, and a second magnetic member having a first magnetic pole and a second magnetic pole. The first magnetic member and the second magnetic member assure the charging operation can be correctly proceeded.
    Type: Application
    Filed: November 3, 2015
    Publication date: April 20, 2017
    Inventors: Ying Hwa Tang, A-Li Wong
  • Publication number: 20170108962
    Abstract: A capacitive whiteboard eraser is disclosed. The capacitive whiteboard eraser includes an eraser body, a control circuit board, an emitting electrode and a tact switch. The eraser body is for a user to hold the capacitive whiteboard eraser with hand. The control circuit board is disposed in the eraser body and configured to generate an erasing control signal. The emitter electrode is disposed on a housing of the eraser body, electrically connected with the control circuit board, and configured to transmit the erasing control signal. The tact switch is dispose on the control circuit board, and when the tact switch is turned on, the control circuit board correspondingly generates and transmits the erasing control signal to the emitting electrode, in order to transmit the erasing control signal to a capacitive whiteboard for performing an erasing procedure.
    Type: Application
    Filed: November 18, 2015
    Publication date: April 20, 2017
    Inventors: YING HWA TANG, YI CHIH CHANG
  • Publication number: 20170108956
    Abstract: A capacitive stylus is disclosed. The capacitive stylus comprises an elastomer and a sensor holder, which can effectively buffer and disperse the impact transmitted from a nib so as to protect internal components of the capacitive stylus.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 20, 2017
    Inventors: YING-HWA TANG, YI-CHIH CHANG
  • Publication number: 20170108948
    Abstract: The invention relates to a retractable capacitance pen. The retractable capacitance pen comprises a pen case, an electrical signal transmitting module, an extension-and-retraction unit, and a switching unit. The extension-and-retraction unit can control the core of the electrical signal transmitting module to extend outside the pen case thereby the switching unit is activated to turn on the electrical signal transmitting module for continuously emitting electrical signals. Furthermore, the extension-and-retraction unit also can control the core of the electrical signal transmitting module to retract into the pen case thereby the switching unit is activated again to turn off the electrical signal transmitting module for stopping emitting electrical signals.
    Type: Application
    Filed: December 22, 2015
    Publication date: April 20, 2017
    Inventors: YING-HWA TANG, HSIN-CHIANG HO