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Active pen and touch system

An active, touch device technology, applied in the direction of instruments, calculations, electrical digital data processing, etc., can solve the problems of limited transmission efficiency, single data transmission rate, lack of flexibility, etc., and achieve the effect of improving transmission efficiency

Pending Publication Date: 2021-10-01
ILI TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, in the current technology, there is only one data channel between the active pen and the touch display panel to transmit downlink information, which makes data with different attributes and different information volumes only be sent at a single transmission rate
Therefore, the current active pen transmission method is inflexible and limits the transmission performance

Method used

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  • Active pen and touch system
  • Active pen and touch system
  • Active pen and touch system

Examples

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Embodiment Construction

[0031] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used in the drawings and description to refer to the same or like parts.

[0032] figure 1 A schematic block diagram showing the structure of the active pen according to an embodiment of the present invention. please see figure 1 , the active pen 100 includes a first transceiver 110 and a first controller 120 . The first transceiver 110 is used for receiving uplink information and transmitting downlink information. In the present invention, the uplink information refers to the information sent by the touch device to the active pen 100 , and the downlink information refers to the information sent back from the active pen 100 to the touch device. Uplink information includes demand information, synchronization information, and protocol information. The required ...

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Abstract

The invention provides an active pen which includes a first transceiver and a first control circuit. The first transceiver is used for receiving uplink information and sending corresponding touch coordinate information, first type downlink information and second type downlink information through at least one data channel. The first control circuit is coupled to the first transceiver. The first control circuit generates touch coordinate information and a plurality of pieces of downlink information based on the uplink information, and classifies the downlink information into the first type downlink information or the second type downlink information according to the data volume of each piece of downlink information and the required transmission frequency. A touch system including the active pen is also provided.

Description

technical field [0001] The invention relates to an active pen, in particular to an active pen with data classification function. Background technique [0002] In today's touch technology, providing an active stylus to perform touch operations on electronic devices has become a major trend. An active pen is an input device that includes internal electronics to provide multiple information about pen position, pressure, hover status, ink status, button press status, battery status, and other functions. kinds of data. The above data is packed into a multi-bit packet, and after adding cyclic redundancy check (Cyclic redundancy check, CRC) data, various modulation methods are used, such as frequency shift modulation (Frequency-Shift Keying, FSK), On-off keying (On-Off Keying, OOK) and phase-shift keying (Phase-Shift Keying, PSK) are used to transmit wirelessly through a downlink channel (referred to as downlink information). [0003] However, in the current technology, there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0354G06F3/041
CPCG06F3/03545G06F3/0412
Inventor 洪家裕林一帆
Owner ILI TECHNOLOGY CORPORATION
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