公开(公告)号：US11487384B1

公开(公告)日：2022-11-01

申请号：US17477513

申请日：2021-09-16

Applicant: Novatek Microelectronics Corp.

Inventor： Tsung-Yu Wang ,  Yun-Hsiang Yeh ,  Yen-Heng Chen

IPC: G06F3/041

Abstract: The invention provides a touch device and a communication method thereof. The touch device includes a display panel and a controller. The controller controls the display panel to perform a display driving operation and a touch sensing operation. The controller may transmit a first wireless signal to another slave communication device via the display panel in a touch sensing period. The controller may receive a second wireless signal sent by another master communication device via the display panel in the touch sensing period. When the touch device serves as one of a master communication device and a slave communication device, a time length of the touch sensing period is a first time length. When the touch device serves as the other of the master communication device and the slave communication device, the time length of the touch sensing period is a second time length greater than the first time length.

公开(公告)号：US12260030B1

公开(公告)日：2025-03-25

申请号：US18396751

申请日：2023-12-27

Applicant: Novatek Microelectronics Corp.

Inventor： Tsung-Yu Wang ,  Yun-Hsiang Yeh ,  Yuan-Fu Hsueh

IPC: G06F3/03 ,  G06F3/0354 ,  G06F3/044

Abstract: A stylus and a touch device are provided. The stylus includes a tip portion and a transmission electrode. The transmission electrode is disposed on the tip portion. The transmission electrode transmits a downlink signal to the touch device. The touch device includes a touch panel and a touch processing circuit. The touch processing circuit is coupled to the touch panel. The touch processing circuit receives the downlink signal from the stylus through the touch panel. The downlink signal includes a plurality of different frequencies.