Patents Assigned to Waltop International Corporation
  • Patent number: 11042231
    Abstract: A stylus structure includes a main body module, a control module, a modulation module, and a cover module. The main body module includes a stylus case unit and a movable unit. The control module includes a process unit and a transmission unit. The modulation module includes multiple sensing units. The cover module includes a stylus cover unit and multiple button units. When an outer opening of the movable unit corresponds to an inner opening of the stylus case unit and the transmission unit electrically connects an external power supply terminal, the transmission unit transmits power from the external power supply terminal to the process unit. When the sensing unit is pressed against a corresponding button unit, a sensing signal is generated by the sensing unit and transmitted to the process unit. The process unit according to the sensing signal sends a color signal to an external electronic device.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: June 22, 2021
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventors: Teng-Fa Yang, Chia-Jui Yeh
  • 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
  • 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
  • Patent number: 10613647
    Abstract: A portable electronic device includes a stylus including a pen-shaped casing structure, a support structure, a rear circuit board, a function assembly, a pen head structure and a power supply. The support structure is disposed in the casing structure. The rear circuit board is positioned on the support structure. The function assembly is disposed on the support structure. The head structure is partially disposed out of the casing structure. The power supply is electrically connected to the rear circuit board. The function assembly includes first, second and third conductive members, first and second movable members, and a button body. When the button body is pressed to drive the first and second movable members to move simultaneously, the first movable member simultaneously electrically contacts the first and second conductive members, so the first and the second conductive members are electrically connected with each other through the first movable member.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: April 7, 2020
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi-Chih Chang
  • Patent number: 10599272
    Abstract: The present disclosure provides a portable electronic device and an active capacitive stylus thereof. The active capacitive stylus includes a pen-shaped casing structure, a support structure, a circuit substrate, a sensor module, an elastic assembly, an abutting assembly, a pen head structure and a power supply component. The circuit substrate is positioned on the support structure. The sensor module is electrically connected to the circuit substrate. The elastic assembly includes a flexible holder contacting the sensor module and a flexible element disposed between the flexible holder and the sensor module. The abutting assembly is disposed inside the pen-shaped casing structure to abut against the flexible holder. The pen head structure, the abutting assembly, the elastic assembly and the sensor module are abutted one to another, so that there is no gap between two of the pen head structure, the abutting assembly, the elastic assembly and the sensor module.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: March 24, 2020
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi-Chih Chang
  • Patent number: 10564737
    Abstract: This invention discloses a capacitive stylus including a pen housing and an eraser for being applied to a touch device. The pen housing includes a tip for emitting an input signal, and the eraser can emit an erasing signal to the touch device. The intensity or erasing range of the erasing signal is determined by the pressure that the eraser exerted on the touch device. In addition, the eraser can trigger a signal to instruct the touch device performing an application.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: February 18, 2020
    Assignee: Waltop International Corporation
    Inventors: Chia-Jui Yeh, Yi-Chih Chang
  • Patent number: 10429956
    Abstract: This invention discloses a capacitive stylus including a pen housing and a detachable eraser. The pen housing comprises a rear end section and a thinning section with a thinner wall thickness than that of the rear end section. A compressible latch is disposed at the outer surface of the eraser. The rear end section includes an axial groove. By pushing the latch to pass through the axial groove into the thinning section and rotating the latch within the thinning section, the pen housing is combined with the eraser.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: October 1, 2019
    Assignee: Waltop International Corporation
    Inventors: Chia-Jui Yeh, Yi-Chih Chang
  • Patent number: 10386944
    Abstract: A capacitive stylus capable of providing signals for tilt and orientation detection is provided. The capacitive stylus is used for a tablet or a touch panel. The capacitive stylus can emit two high voltage waves, and the tablet or the touch panel receives the two high voltage waves and determines a tilt angle and an orientation of the capacitive stylus according to the two high voltage waves. This capacitive stylus has configuration allowing the tilt and orientation detection to be precise.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 20, 2019
    Assignee: Waltop International Corporation
    Inventors: Chung-Fuu Mao, Hsin-Chiang Ho
  • Patent number: 10082895
    Abstract: A capacitive stylus and a touch control apparatus applying synchronized time difference signal transmitting method are disclosed. The capacitive styluses transmit data to a touch control apparatus via wireless communication modules respectively. A non-transitory computer-readable medium of the touch control apparatus storing instructions executable to perform a synchronized time difference signal transmitting method to synchronize time difference of the signal transmitting of the capacitive styluses.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: September 25, 2018
    Assignee: Waltop International Corporation
    Inventors: Chung-Fuu Mao, Chia-Jui Yeh
  • Patent number: 10082894
    Abstract: A synchronized time difference signal transmitting method and capacitive styluses as well as a touch input apparatus applying this method are disclosed. The touch input apparatus uses a time difference synchronization module and the capacitive styluses use synchronization interfaces to synchronize time difference of the signal transmitting of the capacitive styluses.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: September 25, 2018
    Assignee: Waltop International Corporation
    Inventor: Chia-Jui Yeh
  • Patent number: 10042444
    Abstract: A capacitive stylus with two transmit electrodes is disclosed. The two transmit electrodes are isolated and shielded so that the transmit terminals of the transmit electrodes are spaced with a distance.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 7, 2018
    Assignee: Waltop International Corporation
    Inventors: Chia-Jui Yeh, Yi-Chih Chang
  • Patent number: 9983698
    Abstract: A capacitive stylus signal transmitting and application method and a capacitive stylus applying this method are disclosed. The capacitive stylus and the method use electric field signals from three different transmit electrodes to calculate the incline angle and the tip pressure level of the capacitive stylus.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: May 29, 2018
    Assignee: Waltop International Corporation
    Inventor: Chia-Jui Yeh
  • Patent number: 9965060
    Abstract: This instant disclosure is related to a capacitive stylus and a tilt angle detecting method thereof. The capacitive stylus is acting on a touch pad. The capacitive stylus includes a sensing electrode unit and a driving electrode unit, or the capacitive stylus is provided with a first sensing electrode unit and a second sensing electrode unit. The capacitive stylus further includes a tilt angle corresponding table and a direction corresponding table to determine the tilt angle and tilt direction of the capacitive stylus on the touch pad.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: May 8, 2018
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventors: Chia-Jui Yeh, Hung-I Wang
  • 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
  • Patent number: 9751200
    Abstract: The invention relates to a core disassembling device. The core disassembling device comprises an opening-closing box housing and at least one holding hole deposited at one side of the opening-closing box housing. The opening-closing box housing comprises an upper housing and a bottom housing, and the holding hole comprises a first notch and a second notch. The first notch is deposited at one side of the upper housing and the second notch is deposited at one side of the bottom housing. The second notch is corresponded to the first notch. When the opening-closing box housing is closed, the first notch and the second notch constitute the holding hole for holding and fixing the core of the capacitance pen. Therefore, it is easy and convenient for a user to draw the core out the capacitance pen and to change a new core.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 5, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventors: Chung-Fuu Mao, 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
  • Patent number: 9703401
    Abstract: A portable electronic device uses a miniaturization rechargeable capacitive stylus including a pen-shaped metal casing structure, a support structure, a circuit substrate, a sensor module, a pen head structure, an electrical connector structure, and a power supply component. The pen-shaped metal casing structure has a retaining convex portion. The electrical connector structure includes a carrier substrate positioned on the support structure and an electrical connector disposed on the carrier substrate, and the electrical connector has an electrical connection portion exposed from the pen-shaped metal casing structure.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: July 11, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi-Chih Chang
  • Patent number: 9690399
    Abstract: A signal decoding and modulation processing system for capacitive stylus is disclosed. The system includes a micro controller unit (MCU) and a digital processing unit. The digital processing unit is electrically connected to the MCU. The digital processing unit includes a decoding module and a modulating module. The decoding module is configured to decode an input signal from a touch panel, so as to generate a decoded input content. Then, the MCU generates a feedback data according to the decoded input content. The modulating module receives the feedback data from the MCU and performs a modulation process accordingly for generating a differential binary phase shift keying (DBPSK) output signal, which is sent back to the touch panel.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 27, 2017
    Assignee: Waltop International Corporation
    Inventors: Chung-Fuu Mao, Chia-Jui Yeh
  • 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
  • Patent number: 9626011
    Abstract: A rechargeable capacitive stylus includes a pen-shaped casing structure, a sensor module, a pen head structure, and an electrical connector structure. The pen-shaped casing structure has a pen casing, a rotatable ring rotatably disposed around the pen casing, and a pen holder adjacent to the rotatable ring. The sensor module is disposed inside the pen-shaped casing structure. The pen head structure is movably disposed inside the pen-shaped casing structure to selectively contact the sensor module. The electrical connector structure is disposed inside the pen-shaped casing structure. The electrical connector structure includes a first electrical connector electrically connected to a power supply, and the first electrical connector has a first electrical connection portion. The pen casing has a first fixed opening for exposing the first electrical connection portion, and the rotatable ring has a movable opening that is moved relative to the pen casing or the pen holder.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 18, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi Chih Chang