公开(公告)号：US20250130654A1

公开(公告)日：2025-04-24

申请号：US18818630

申请日：2024-08-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Jyun-Sian Li ,  Jyun-Yu Jhang ,  Ta-Keng Weng ,  Yuan-Fu Hsueh ,  Yun-Hsiang Yeh

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/044 ,  H04W72/21 ,  H04W72/23

Abstract: A method for controlling a plurality of types of styluses includes steps of: outputting a first uplink signal corresponding to a first type of stylus among the plurality of types of styluses, to detect the first type of stylus; and outputting a second uplink signal corresponding to a second type of stylus among the plurality of types of styluses, to detect the second type of stylus. The second type is different from the first type.

公开(公告)号：US20250138678A1

公开(公告)日：2025-05-01

申请号：US18749658

申请日：2024-06-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chen-Shan Su ,  Yun-Hsiang Yeh ,  Ta-Keng Weng ,  Chung-Cher Lin

IPC: G06F3/041

Abstract: A touch detection method for generating a report includes obtaining a position of a touch point; determining a plurality of reference sensor pads according to the position of the touch point; determining a weight for each of the plurality of reference sensor pads according to the position of the touch point; evaluating a first evaluated peak value of the touch point based on sensing values of the plurality of reference sensor pads and the corresponding weights; and determining whether to generate the report for the touch point according to the first evaluated peak value and a first threshold.

公开(公告)号：US20210286496A1

公开(公告)日：2021-09-16

申请号：US16931455

申请日：2020-07-17

Applicant: Novatek Microelectronics Corp.

Inventor： Chung-Cher Lin ,  Yun-Hsiang Yeh ,  Ta-Keng Weng

IPC: G06F3/041

Abstract: A touch scanning method shortening a first touch latency includes: scanning a Mth column of the N-column touch panel according to a touch scan (TSHD) signal; determining whether the finger is on the Mth column of the N-column touch panel according to a scan data signal; performing a fast done process according to a fast done signal when the finger is on the Mth column of the N-column touch panel; determining whether M equals to N when the finger is not on the Mth column of the N-column touch panel; and resetting M to 1 according to a scan start signal and performing an algorithm according to a finish flag signal.

公开(公告)号：US20250147618A1

公开(公告)日：2025-05-08

申请号：US18502079

申请日：2023-11-06

Applicant: Novatek Microelectronics Corp.

Inventor： Chin-Tang Chang ,  Yun-Hsiang Yeh ,  Ta-Keng Weng

IPC: G06F3/041

Abstract: The touch device includes a processor and a driving circuit. The processor performs an active object detection through the driving circuit to detect a first position of an active stylus on a touch panel. The processor performs a passive object detection through the driving circuit to detect a second position of a passive object on the touch panel. The processor defines a first detection range including the first position. The processor defines a second detection range on the touch panel based on the first detection range, in which the first detection range is mutually exclusive from the second detection range. Then, the processor performs the active object detection in the first detection range through the driving circuit, and the processor disables or ignores the active object detection in the second detection range.

公开(公告)号：US20210089188A1

公开(公告)日：2021-03-25

申请号：US16995780

申请日：2020-08-17

Applicant: Novatek Microelectronics Corp.

Inventor： Chung-Cher Lin ,  Yun-Hsiang Yeh ,  Ta-Keng Weng ,  Yi-Min Li

IPC: G06F3/041 ,  G09G3/20

Abstract: An electronic circuit, adapted to drive a display panel comprising touch sensors, is provided. The electronic circuit can include a display driving circuit, a timing circuit and a touch scan circuit. The display driving circuit drives a touch display panel. The timing circuit receives a flag signal from a processing circuit and generates a scan start signal according to the flag signal. The touch scan circuit generates a plurality of touch scan signals according to the scan start signal and a touch column synchronization signal. The touch scan circuit determines a start time of a touch frame period according to a pulse of the scan start signal. The scan start signal can be asynchronous or delayed with respect to a touch frame synchronization signal generated by the display driving circuit.

公开(公告)号：US11928295B2

公开(公告)日：2024-03-12

申请号：US17805466

申请日：2022-06-05

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chung-Cher Lin ,  Yun-Hsiang Yeh ,  Ta-Keng Weng

IPC: G06F3/044 ,  G06F3/01 ,  G06F3/041

CPC classification number: G06F3/0442 ,  G06F3/016 ,  G06F3/0416 ,  G06F3/0441 ,  G06F2203/04112

Abstract: A data transmission method includes: transmitting a plurality of first transmitting signals from a plurality of transmitting areas of the first touch device; determining, by the second touch device, whether a first sensing signal corresponding to the plurality of first transmitting signals is received; if yes selecting, by the second touch device, a receiving area in a first overlap range according to signal intensity of the first sensing signal; transmitting a second transmitting signal from the receiving area; determining, by the first touch device, whether a second sensing signal corresponding to the second transmitting signal is received; if yes, selecting, by the first touch device, a first transmitting area in a second overlap range from the plurality of transmitting areas according to signal intensity of the second sensing signal; determining a final transmitting area and a final receiving area; and performing a data transmission process.

公开(公告)号：US11287925B2

公开(公告)日：2022-03-29

申请号：US16995780

申请日：2020-08-17

Applicant: Novatek Microelectronics Corp.

Inventor： Chung-Cher Lin ,  Yun-Hsiang Yeh ,  Ta-Keng Weng ,  Yi-Min Li

IPC: G06F3/041 ,  G09G3/20

Abstract: An electronic circuit, adapted to drive a display panel comprising touch sensors, is provided. The electronic circuit can include a display driving circuit, a timing circuit and a touch scan circuit. The display driving circuit drives a touch display panel. The timing circuit receives a flag signal from a processing circuit and generates a scan start signal according to the flag signal. The touch scan circuit generates a plurality of touch scan signals according to the scan start signal and a touch column synchronization signal. The touch scan circuit determines a start time of a touch frame period according to a pulse of the scan start signal. The scan start signal can be asynchronous or delayed with respect to a touch frame synchronization signal generated by the display driving circuit.

公开(公告)号：US11182019B2

公开(公告)日：2021-11-23

申请号：US16931455

申请日：2020-07-17

Applicant: Novatek Microelectronics Corp.

Inventor： Chung-Cher Lin ,  Yun-Hsiang Yeh ,  Ta-Keng Weng

IPC: G06F3/041

Abstract: A touch scanning method shortening a first touch latency includes: scanning a Mth column of the N-column touch panel according to a touch scan (TSHD) signal; determining whether the finger is on the Mth column of the N-column touch panel according to a scan data signal; performing a fast done process according to a fast done signal when the finger is on the Mth column of the N-column touch panel; determining whether M equals to N when the finger is not on the Mth column of the N-column touch panel; and resetting M to 1 according to a scan start signal and performing an algorithm according to a finish flag signal.