Multi-signal electromagnetic induction system and multi-signal processing method
A technology of electromagnetic induction and processing method, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., and can solve the problems of shortening identification and frequency change, etc.
Active Publication Date: 2011-09-21
WACOM CO LTD
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[0010] Another object of the present invention is to provide a new multi-signal processing method. The technical problem to be solved is to use a variety of electromagnetic signals of different frequencies to identify electromagnetic frequencies and determine resonance frequency changes for pressure calculation or Function selection, and it is not necessary to accurately calculate the frequency of electromagnetic signals, thereby reducing its difficulty and complexity, and shortening the process of frequency identification and frequency change discrimination, making it more suitable for practical use
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[0074] In order to further explain the technical means and effects that the present invention adopts to achieve the intended invention purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation methods, Structure, characteristic and effect thereof are as follows in detail.
[0075] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. For convenience of description, in the following embodiments, the same elements are denoted by the same numbers.
[0076] Some embodiments of the invention are described in detail below. However, the invention can be broadly practiced in other embodiments than this detailed description. That is to say, the scope of the present invention is not limited by the proposed embodiments, but is subject to the patent scope of the present ...
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The invention relates to a multi-signal electromagnetic induction system and a multi-signal processing method, in particular to an electromagnetic induction system utilizing multi-signal to perform frequency identification and a method for frequency identification by multi-signal processing. The multi-signal electromagnetic induction system provided by the invention utilizes the multi-signal processing method to integrate a coordinate calculation circuit with a pressure calculation circuit so as to reduce the required elements, thereby simplifying the structure of the electromagnetic induction system and saving the cost. Besides, by using the multi-signal processing method to perform the pressure calculation or function selection, the process of accurately calculating the frequency of electromagnetic signal is unnecessary, thereby reducing the difficulty and complexity.
Description
technical field [0001] The invention relates to a multi-signal electromagnetic induction system and a multi-signal processing method, in particular to an electromagnetic induction system using multi-signal for frequency identification and a method for applying multi-signal processing for frequency identification. Background technique [0002] refer to figure 1 , which is a simple structural diagram of a conventional electromagnetic induction system 10 . The electromagnetic induction system 10 includes a digital board 20 , an electromagnetic induction pen 30 , a coordinate calculation circuit 40 , a pressure calculation circuit 50 , and a microprocessor 60 . The digital board 20 has several antenna loops 22X and 22Y distributed along the X-axis and the Y-axis respectively for transmitting and receiving electromagnetic signals, and the electromagnetic induction pen 30 has an induction circuit for receiving the signals from the digital board 20. The emitted electromagnetic si...
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Inventor 叶云翔陈怡婷
Owner WACOM CO LTD