Method, device and system for detecting a transmitter close to a touch display device
A technology of touch display device and transmitter, which is applied in the input/output process of instruments, data processing, electrical digital data processing, etc., which can solve problems such as inconvenience and achieve the effect of reducing electromagnetic interference
Active Publication Date: 2018-08-31
EGALAX EMPIA TECH INC
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Problems solved by technology
[0006] It can be seen that the above-mentioned existing method and device for detecting a stylus on a touch screen obviously still have inconveniences and defects in structure and use, and need to be further improved urgently.
In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general methods and products cannot solve the above-mentioned problems. problem to be solved
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[0076] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the following, in conjunction with the accompanying drawings and preferred embodiments, discusses a method of detecting a transmitter close to a touch display device according to the present invention. The specific implementation, structure, features and effects of the method, device and system are described in detail below.
[0077] In an embodiment, the transmitter referred to in the present invention may be a stylus. In some embodiments, the transmitter can be other objects placed on the touch panel or screen. For example, when the touch screen presents a game board, the transmitter can be a chess piece. After the game program detects the position of the chess piece on the touch screen, it can know the position of the chess piece.
[0078] Regardless of the actual contact area between the sender and the touch panel, and how ...
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The present invention provides a method, a device and a system for the transmitter of a touch display device. The transmitter includes a transmitting module configured to transmit an electrical signal to a touch sensitive device according to at least one transmitter operating status such that the touch sensitive device acknowledges the transmitter operating status by analyzing the electrical signal including one or more first frequencies; a detecting module configured to detect an interference signal coherent to the electrical signal from a received signal external to the transmitter when the transmitting module is not transmitting the electrical signal; and a processing module configured to replace the detected one or more first frequencies with one or more second frequencies in response to the interference signal being detected by the detecting module.
Description
technical field [0001] The present invention relates to an in-cell touch screen, in particular to a method, device and system for detecting proximity transmitters using an in-cell touch screen. Background technique [0002] Touch panels or touch screens are very important human-machine interfaces, especially on consumer electronics products such as mobile phones, tablet computers, or personal digital assistants. The touch screen can be said to be the most important output and input device. Since the capacitive touch screen, especially the projected capacitive type, is particularly sensitive to partial sensing of fingers, it has become one of the main touch panel / screen designs on the market. [0003] Touching with a fingertip will cover a part of the screen, and the user cannot clearly confirm where the point detected by the touch screen is with eyes. And if you write with your fingertips, you may not have the precise control you can get with a pen. Therefore, in addition ...
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IPC IPC(8): G06F3/044
CPCG06F3/044
Inventor 张钦富叶尚泰
Owner EGALAX EMPIA TECH INC