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Position tracking signal generator unit and input system provided with same

A signal generator and input system technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problem of longer piezoelectric film length, user discomfort, and position tracking signal generator unit thickness Bigger and other issues

Inactive Publication Date: 2009-10-14
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to increase the power of the ultrasonic signal, the length of the piezoelectric film covering the outer surface of the pen core 19 becomes longer.
Corresponding to the increase in length, the thickness of the position tracking signal generator unit implemented as a stylus becomes larger, which may cause discomfort to the user.

Method used

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  • Position tracking signal generator unit and input system provided with same
  • Position tracking signal generator unit and input system provided with same
  • Position tracking signal generator unit and input system provided with same

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Embodiment approach

[0026] figure 2 It is a schematic diagram showing the structure of a position tracking signal generator unit according to an embodiment of the present invention. refer to figure 2 , the location tracking signal generator unit according to an embodiment of the present invention physically includes a main body 200 and a guide 300 coupled with the main body 200 .

[0027] The main body 200 includes a power supply 230 , an ultrasonic signal generating unit 240 , a reference signal generator 220 , a controller 210 and a refill 250 . The power supply 230 supplies power to the ultrasonic signal generating unit 240 , the reference signal generator 220 and the controller 210 . The reference signal generator 220 receives supplied power, and generates a reference signal based on a reference control signal input from the controller 210 . In the present invention, the reference signal may include an infrared (IR) signal, a radio frequency (RF) signal, or an electromagnetic (EM) induct...

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Abstract

The invention discloses a position tracking signal generator unit and an input system provided with the same. The position tracking signal generator unit produces ultrasonic signals according to a constant time interval so that ultrasonic signals produced by a plurality of ultrasonic signal generators can be overlapped and amplified, thus the strength of the ultrasonic signals can be improved, and the coverage area of the ultrasonic signals can be enlarged. By means of the structural advantages, the invention can solve the problems of the prior technology, such as the problem that the thickness of the position tracking signal generator unit is large as the strength of the ultrasonic signals of a large-size ultrasonic sensor is improved.

Description

technical field [0001] The invention relates to a position tracking signal generator unit and an input system comprising a position tracking input device for tracking the position of the position tracking signal generator unit and inputting information. Background technique [0002] The position tracking input device is a device that identifies the position of the position tracking signal generator unit moved by the user and inputs information about the signal generator unit and its trajectory. Currently, position tracking input devices are implemented using a natural handwriting input system in combination with a position tracking signal generator unit as a stylus. For simplicity of description, the present invention will be described by taking the position tracking signal generator unit and the position tracking input device as a natural handwriting input system as examples. [0003] Different from the natural handwriting recognition method in the tablet computer, in this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033G06F3/038
Inventor 高悼英李在俊
Owner FREE PEN