Multi-cartridge pressure sensing electromagnetic pen
An electromagnetic pen and refill technology, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the inconvenience of a single emission frequency electromagnetic pen, a single electromagnetic pen, a single refill, and a single problem.
Inactive Publication Date: 2012-12-12
WALTOP INT
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Problems solved by technology
[0004] However, the disadvantage of the prior art is that a single electromagnetic pen only has a single refill and can only display a single color on the display of a computer. If it is necessary to change the displayed color of the electromagnetic pen on the display, another electromagnetic pen must be used. , because the computer uses the system software to judge the emission frequency of the electromagnetic pen to determine the color displayed on the monitor
Therefore, for the application fields that need to use electromagnetic pens of different colors, the single emission frequency electromagnetic pen of the prior art is quite inconvenient
Method used
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[0011] refer to figure 1 , a schematic diagram of the multi-refill pressure-sensitive electromagnetic pen according to the first embodiment of the present invention. Such as figure 1 As shown, the multi-refill pressure-sensitive electromagnetic pen of the present invention includes a plurality of refills (such as the first refill 10 and the second refill 20 in the figure), a plurality of sensing elements (the first sensor in the figure Measuring element 31 and second sensing element 32), casing 30, coil 40, circuit board 50, wherein the first pen core 10 and the second pen core 20 are wrapped in the shell 30, the coil 40 is wound on the shell 30 and Connected to the circuit board 50 , the circuit board 50 and the first sensing element 31 and the second sensing element 32 are respectively in contact with the tail ends of the first pen core 10 and the second pen core 20 .
[0012] It should be noted that, for the convenience of describing the features of the present invention,...
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The invention provides a multi-cartridge pressure sensing electromagnetic pen which comprises a plurality of cartridges, a plurality of sensing elements, a housing, a coil and a circuit board, wherein the cartridges are wrapped in the housing, the coil is wound on the housing and connected to the circuit board, the circuit board and the sensing elements are positioned at the tail ends of the cartridges, each cartridge is provided with a pen point, a magnetic pen holder, an elastic member and an actuating mechanism, the actuating mechanism can be pushed to ensure that the pen point extends outof the front end of the housing, the pen is used for writing characters or drawing on a digiboard, the elastic member applies force to the digiboard by buffering the pen point, and the capacitance value in the circuit board can be switched by using the sensing elements and the transmitting frequency is changed, therefore, the multi-cartridge pressure sensing electromagnetic pen has a function of displaying different colors on the display.
Description
technical field [0001] The invention relates to a multi-core pressure-sensitive electromagnetic pen, especially with different emission frequencies. Background technique [0002] With the increasing popularity of computers, in addition to the keyboard providing the function of character input, there are many different input devices to facilitate the user to input different information, such as a mouse that provides cursor movement and clicking functions, especially with handwriting and drawing functions digital board input system. [0003] The digital board input system generally includes a detection board, a control board and an electromagnetic pen. The electromagnetic pen has electromagnetic characteristics and can emit electromagnetic waves in a specific frequency range. Detect the electromagnetic wave of the electromagnetic pen and detect the stroke force of the electromagnetic pen, and the control board has a control circuit, which can convert the detection signal of t...
Claims
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IPC IPC(8): G06F3/033G06F3/038G06F3/0354
Inventor 谢政良
Owner WALTOP INT