Patents by Inventor Cheng-Wei Pan

Cheng-Wei Pan 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).

  • Driving method of active stylus and related driving device
    Patent number: 11822745
    Abstract: Provided are a driving method of a touch display panel, a driving circuit and a touch display device. The driving method includes: obtaining a touch position of an active stylus; determining a first region on the touch display panel based on the touch position of the active stylus; and transmitting an uplink (UL) signal to touch sensing electrodes in the first region and transmitting an anti-interference signal to the touch sensing electrodes in at least a part of the region except for the first region on the touch display panel during an UL transmission period, wherein the UL signal transmitted to the touch sensing electrodes in the first region during the UL transmission period is for transmission to the active stylus.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: November 21, 2023
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hao-Wei Cheng, Cheng-Wei Pan
  • DRIVING METHOD OF ACTIVE STYLUS AND RELATED DRIVING DEVICE
    Publication number: 20230140181
    Abstract: Provided are a driving method of a touch display panel, a driving circuit and a touch display device. The driving method includes: obtaining a touch position of an active stylus; determining a first region on the touch display panel based on the touch position of the active stylus; and transmitting an uplink (UL) signal to touch sensing electrodes in the first region and transmitting an anti-interference signal to the touch sensing electrodes in at least a part of the region except for the first region on the touch display panel during an UL transmission period, wherein the UL signal transmitted to the touch sensing electrodes in the first region during the UL transmission period is for transmission to the active stylus.
    Type: Application
    Filed: August 19, 2022
    Publication date: May 4, 2023
    Inventors: Hao-Wei Cheng, Cheng-Wei Pan