TWI461669B - Variable frequency generator and press-sensing cursor controlling device and air shoes using the same - Google Patents

Description

Variable frequency signal generator and pressure sensing cursor control device and air cushion shoe using same

The present invention relates to a variable frequency signal generator, a pressure sensitive cursor control device using a variable frequency signal generator, and a cushion shoe using a variable frequency signal generator, in particular, a variable frequency signal capable of sensing a change in air pressure. A generator, a pressure sensitive cursor control device using a variable frequency signal generator, and a cushion shoe using a variable frequency signal generator.

In daily life, there are many devices that need to sense pressure to operate, or if it is more convenient to add pressure sensing. For example, the touch panel often uses a stylus to control the indicator, and the user can input text data or graphic data by handwriting, but the traditional stylus cannot recognize the pressure of the brush applied by the user. Although it allows the user to perform handwriting input, it does not reach the feel of a brush or a brush. In the drawing application, it is also impossible for the user to change the thickness of the line by changing the stroke pressure.

However, there is still room for improvement in current pressure sensors. For example, capacitive pressure sensors have been commonly used in many different fields. Most of today's capacitive pressure sensors are still manufactured in the form of Silicon Micromachining Technology. However, the material properties and structural factors of the tantalum substrate itself are generally small, so the sensitivity is insufficient.

For example, a pressure sensor with a probe type may be transmitted by a probe. The force is completely applied to the piezoelectric crystal in the sensor, causing the piezoelectric crystal to withstand a large stress and causing the piezoelectric crystal to rupture, resulting in damage of the pressure sensor. Current pressure sensors may have disadvantages such as complicated internal circuits, low sensitivity, and being susceptible to external factors other than pressure or long service life.

In order to solve the above problems, the present invention provides a variable frequency signal generator, a pressure sensitive cursor control device using a variable frequency signal generator, and an air cushion shoe using a variable frequency signal generator.

The variable frequency signal generator includes a resilient cover, an oscillating member and a fixed cover. The elastic cover has an airtight space, and the elastic cover is deformed when subjected to a force to change a gas pressure in the airtight space. The oscillating component is configured to output a variable frequency signal, and the frequency of the variable frequency signal changes with the air pressure in the airtight space. The fixed cover covers the oscillating member, and the fixed cover is accommodated in the airtight space. The fixed cover has an opening that allows the oscillating member to contact the gas outside the fixed cover.

The oscillating element can be a quartz oscillator or a ceramic oscillator. The higher the air pressure in the airtight space, the higher the frequency of the variable frequency signal; the smaller the air pressure in the airtight space, the smaller the frequency of the variable frequency signal.

The pressure sensitive cursor control device using the variable frequency signal generator includes a body portion and a pressure sensing portion. The pressure sensitive portion extends from one end of the body portion, and the pressure sensitive portion includes the variable frequency signal generator described above.

According to an embodiment, the body portion may include a transmission unit and a control unit. The control unit can be connected to the transmission unit and the variable frequency signal generator. control The unit can be used to receive the variable frequency signal by the variable frequency signal generator and cause the transmission unit to transmit the variable frequency signal. The body portion may further include a driving unit. The driving unit can be connected to the control unit and the variable frequency signal generator, and can be used to drive the variable frequency signal generator.

An air-cushion shoe using a variable frequency signal generator includes a body portion and an air cushion portion. The air cushion portion extends from one end of the body portion and includes the aforementioned variable frequency signal generator.

According to an embodiment, the body portion may include a control unit and an action unit, wherein the control unit is connectable to the variable frequency signal generator. The control unit can be configured to receive the variable frequency signal by the variable frequency signal generator and output a control signal. The action unit can be connected to the control unit; the action unit can be used to receive the control signal and act according to the control signal. The body portion may further include a drive unit. The driving unit can be connected to the control unit and the variable frequency signal generator and used to drive the variable frequency signal generator.

In summary, the variable frequency signal generator can output a variable frequency signal according to the air pressure of the airtight space in the elastic cover. Since the internal circuit of the oscillating element is extremely simple, the hardware cost is very low. Moreover, since the oscillating member can be protected by the fixed cover, the elastic cover and the airtight space, the external interference sensing result and the service life can be avoided. In addition, the variable frequency signal generator can be used on a variety of devices or items that require sensing pressure.

The detailed features and advantages of the present invention are described in detail below in the embodiments. The content of the present invention is sufficient to enable anyone skilled in the art to understand the technical contents of the present invention and implement it according to the contents of the present specification, the scope of the patent application and the drawings, and those skilled in the art can easily understand the present invention. The purpose and advantages.

The invention provides a variable frequency signal generator, and a pressure sensitive cursor control device and an air cushion shoe using the variable frequency signal generator. A variable frequency signal generator can be used to sense changes in the pressure it is subjected to.

Please refer to FIG. 1 , which is a schematic diagram of a variable frequency signal generator according to an embodiment. The variable frequency signal generator 20 includes a resilient cover 22, an oscillating member 24, and a fixed cover 26.

The elastic cover 22 has an airtight space, and the airtight space does not generate gas exchange with the outside of the elastic cover 22. In other words, the number of molecules in the airtight space is fixed. The material of the elastic cover 22 may be, for example, rubber or plastic, and may be compressed by force deformation. When the elastic cover 22 is subjected to a force, deformation occurs, so that the volume of the elastic cover 22 is reduced, thereby causing a change in the air pressure in the airtight space. The greater the force applied to the elastic cover 22, the greater the deformation that occurs, and the greater the change in the air pressure of the airtight space. However, the shape and size of the elastic cover 22 are not limited herein.

The oscillating component 24 is configured to output a variable frequency signal, and the frequency of the variable frequency signal changes with the air pressure in the airtight space. For example, the oscillating element 24 can be a quartz oscillator (or a crystal oscillator) or a ceramic oscillator. Oscillating element 24 and can have a The root or two pins 242 receive power and output a variable frequency signal.

The fixed cover 26 covers the oscillating member 24, and the fixed cover 26 covered with the oscillating member 24 is housed in the airtight space of the elastic cover 22. The elastic modulus of the fixed cover 26 is larger than the elastic modulus of the elastic cover 22, and the material may be a rigid material such as a pure metal or alloy. The shape and size of the fixed cover 26 are also not limited herein; preferably, the fixed cover 26 protects the oscillating member 24 from interference with factors other than air pressure.

The fixed cover 26 has an opening 262 to enable the oscillating member 24 to contact the gas outside the fixed cover 26. The opening 262 may be, for example, circular or elongated, and the size of the opening 262 may be designed according to the volume or other characteristics of the oscillating member 24, which is not limited herein. However, the opening 262 should be sized to allow the oscillating member 24 to sense the air pressure of the airtight space.

In general, the larger the deformation of the elastic cover 22, the larger the air pressure in the airtight space; the smaller the deformation of the elastic cover 22, the smaller the frequency of the variable frequency signal. The higher the air pressure in the airtight space, the higher the frequency of the variable frequency signal; the smaller the air pressure in the airtight space, the smaller the frequency of the variable frequency signal.

Please refer to "FIG. 2", which is a schematic diagram of the operation of the variable frequency signal generator of an embodiment.

In the embodiment of "Fig. 1" and "Fig. 2", the fixed cover 26 covered with the oscillating member 24 is received in the spherical elastic cover 22, and the pin 242 can continuously output variable frequency signals. . When the spherical elastic cover 22 is pressed by an external force, deformation occurs, as shown in "Fig. 2". Due to the volume of the ball under pressure Zoom out, causing the air pressure inside the sphere to rise. At this time, the oscillating element 24 senses an increase in the air pressure, and thus outputs a variable frequency signal having a higher frequency. In other words, the frequency of the variable frequency signal outputted in the "Fig. 2" state is higher than the frequency of the variable frequency signal outputted in the "Fig. 1" state.

According to different embodiments, whether the elastic cover 22 is deformed by force or not can be determined according to the variable frequency signal, and the degree of force of the elastic cover 22 can be determined. The oscillating member 24 covered by the fixed cover 26 can be used as a pressure sensor. The pressure sensor can be disposed in various elastic covers 22 capable of forming an airtight space to sense the force of the elastic cover 22.

The following provides an embodiment in which the variable frequency signal generator 20 is applied to the pressure sensitive cursor control device and the air cushion shoe, but the variable frequency signal generator 20 can be applied to various devices or articles that require sensing pressure.

Please refer to "3A" and "3B", which are schematic diagrams and actuation diagrams of a pressure sensitive cursor control device of an embodiment.

The pressure sensitive cursor control device 30 includes a body portion 32 and a pressure sensing portion 34. The pressure sensing portion 34 can extend from one end of the portion of the body portion 32, and the pressure sensing portion 34 includes the variable frequency signal generator 20 and the needle tip 342, wherein the pen tip 342 and the elastic cover 22 abut each other.

For example, the pressure sensitive cursor control device 30 can be a digital pen or a stylus, and the user can press the pen tip 342 of the pressure sensitive cursor control device 30 against a panel to control a cursor of a computer. The pressure sensing portion 34 of the pressure sensitive cursor control device 30 can sense the degree of force applied to the pen tip 342 and output variable elasticity according to the degree of force applied. Signal.

The body portion 32 can include a hollow pen holder 322, a transfer unit 324, and a control unit 326. The hollow pen holder 322 can be used to house the various components of the pressure sensitive cursor control device 30 that include the pressure sensitive portion 34. Control unit 326 can be coupled to transmission unit 324 and variable frequency signal generator 20. The control unit 326 can be configured to receive the variable frequency signal by the variable frequency signal generator 20 and cause the transmission unit 324 to transmit the variable frequency signal. The transmission unit 324 can transmit the variable frequency signal to the computer through wireless means such as infrared rays, Bluetooth, electromagnetic principle, ZigBee or Wi-Fi.

The body portion 32 can further include a drive unit 328. The driving unit 328 can be connected to the control unit 326 and the variable frequency signal generator 20 and used to drive the variable frequency signal generator 20. In addition, according to various embodiments, the body portion 32 may also include a power source 329 for supplying power to the oscillating member 24, the transmission unit 324, the control unit 326, or the driving unit 328, and the like. The power source 329 can be a battery or a charging circuit.

When the user holds the pressure sensitive cursor control device 30 and applies a force to the panel, the pen tip 342 abuts against the panel and is displaced inwardly relative to the hollow sheath 322, as shown in "Fig. 3". The nib 342 is originally abutted against the elastic cover 22, and the retracted nib 342 continues to press the elastic cover 22 to deform the elastic cover 22. As described above, when the elastic cover 22 is deformed, the air pressure in the airtight space is increased, so that the frequency of the output variable frequency signal becomes large.

An operating system of the computer receives the variable frequency signal from the transmission unit 324 The variable frequency signal can then be passed to an application to react to the application's definition of various indicator operations. For example, the application can be a drawing software, and the size of the pen pressure is known according to the variable frequency signal, and the writing effect like a brush or a brush is produced.

Please refer to "Fig. 4", which is a schematic view of an air-cushion shoe of an embodiment.

The air-cushion shoe 40 includes a body portion 42 and an air cushion portion 44, wherein the air cushion portion 44 can extend from one end of the portion of the body portion 42. The air cushion portion 44 includes the aforementioned variable frequency signal generator 20. The elastic cover 22 of the variable frequency signal generator 20 may be substantially in the shape of a long plate and covered in the air cushion portion 44. The elastic cover 22 may abut against a sole 421 of the body portion 42 and a body 422. by.

For example, the air cushion portion 44 may be disposed between the sole 421 and the shoe body 422 as shown in FIG. 4. The variable frequency signal generator 20 is capable of sensing the degree of force applied to the air cushion portion 44 and outputting the variable elastic signal in accordance with the degree of force applied. It should be noted that it is necessary to maintain airtightness in the elastic cover 22.

The body portion 42 can include an action unit 424 and a control unit 426. The sole 421 or the shoe body 422 can have an accommodating space for accommodating components such as the action unit 424 and the control unit 426. The body portion 42 can further include a driving unit 428. The driving unit 428 can be connected to the control unit 426 and the variable frequency signal generator 20 and can be used to drive the variable frequency signal generator 20. In addition, the main body portion 42 may also include a power source 429 for supplying power to the oscillating member 24, the action unit 424, the control unit 426, or the driving unit 428, etc., according to actual needs. Force component. The power source 429 can be a battery or a charging circuit.

When the user wears the air-cushioning shoe 40, the weight of the user applies pressure to the air cushion portion 44. Therefore, the sole 421 and the shoe body 422 press the air cushion portion 44 disposed therebetween so that the elastic cover 22 is deformed. As described above, when the elastic cover 22 is deformed, the air pressure in the airtight space is increased, so that the frequency of the output variable frequency signal becomes large.

The control unit 426 can be connected to the variable frequency signal generator 20, and can receive the variable frequency signal from the variable frequency signal generator 20, and then output a control signal. The action unit 424 can be coupled to the control unit 426 and can be used to receive the control signal and act according to the control signal. Through this mechanism, when the user moves, the force sensed by the variable frequency signal generator 20 can indicate the pressure on the sole of the user, and the action unit 424 generates a warning message, thereby avoiding the excessive pressure action. Injure the feet. Alternatively, control unit 426 can communicate the degree of force sensed by variable frequency signal generator 20 to a computer system. The computer system can be used to monitor the amount of change between the sole pressure and the motion pattern during exercise. The computer system can accurately determine the relationship between the user's physical fitness and the motion mode based on the variable frequency signal or the control signal.

The action unit 424 can include at least one Light-Emitted Diode (LED). The control unit 426 can change the brightness of the LED or the frequency of the blinking according to the frequency of the variable frequency signal. The action unit 424 can also include a speaker or a buzzer. The control unit 426 can change the volume of the emitted sound, the audio level or the sound according to the frequency of the variable frequency signal. Sound interval.

In summary, the variable frequency signal generator is covered and protected by the fixed cover, and the output variable frequency signal can be changed according to the air pressure in the elastic cover. The internal circuit of the oscillating element for generating a variable frequency signal is extremely simple and low in cost. Moreover, the fixed cover, the elastic cover and the airtight space can protect the oscillating element from being affected by external factors other than air pressure, and can also prolong its service life.

Furthermore, the variable frequency signal generator can be applied to various devices or articles that need to sense pressure, such as pressure sensitive cursor control devices or air cushion shoes, and thus has great industrial utilization and development prospects.

The above detailed description of the preferred embodiments of the present invention is intended to provide a further understanding of the scope of the invention. On the contrary, the intention is to cover various modifications and equivalent arrangements within the scope of the invention as claimed.

20‧‧‧Variable frequency signal generator

22‧‧‧Flexible cover

24‧‧‧Oscillation components

242‧‧‧ feet

26‧‧‧Fixed cover

262‧‧‧ openings

30‧‧‧ Pressure-sensitive cursor control device

32‧‧‧ Body Department

322‧‧‧ hollow pen holder

324‧‧‧Transportation unit

326‧‧‧Control unit

328‧‧‧ drive unit

329‧‧‧Power supply

34‧‧‧The Ministry of Pressure

342‧‧‧ nib

40‧‧‧ air cushion shoes

42‧‧‧ Body Department

421‧‧‧ sole

422‧‧‧Shoe body

424‧‧‧Action unit

426‧‧‧Control unit

428‧‧‧Drive unit

429‧‧‧Power supply

44‧‧‧ Air cushion department

Figure 1 is a schematic diagram of a variable frequency signal generator of an embodiment.

Figure 2 is a schematic diagram of the operation of the variable frequency signal generator of an embodiment.

Fig. 3A is a schematic diagram of a pressure sensitive cursor control device of an embodiment.

Fig. 3B is a schematic diagram showing the operation of the pressure sensitive cursor control device of an embodiment.

Figure 4 is a schematic view of an air-cushioned shoe of an embodiment.

20‧‧‧Variable frequency signal generator

22‧‧‧Flexible cover

24‧‧‧Oscillation components

242‧‧‧ feet

26‧‧‧Fixed cover

262‧‧‧ openings

Claims (10)

A variable frequency signal generator includes: an elastic cover body having an airtight space, the elastic cover body deforming when subjected to a force to change a gas pressure in the airtight space; and an oscillating element for outputting a variable frequency signal, the frequency of the variable frequency signal changes with the air pressure in the airtight space; and a fixed cover covering the oscillating element, and the fixed cover body is accommodated in the airtight space, The fixed cover has an opening that allows the oscillating member to contact a gas outside the fixed cover. The variable frequency signal generator of claim 1, wherein the higher the air pressure in the airtight space, the higher the frequency of the variable frequency signal; the smaller the air pressure in the airtight space, the variable frequency The frequency of the rate signal is smaller. A pressure sensitive cursor control device comprising: a body portion; and a pressure sensing portion extending from one end of the body portion, the pressure sensing portion comprising the variable frequency signal generator as claimed in claim 1. The pressure sensitive cursor control device according to claim 3, wherein the body portion comprises: a transmission unit; and a control unit connected to the transmission unit and the variable frequency signal generator, wherein the control unit is used by the control unit The variable frequency signal generator receives the variable frequency signal and causes the transmission unit to transmit the variable frequency signal. The pressure sensitive cursor control device according to claim 4, wherein the body portion is separately packaged And comprising: a driving unit connected to the control unit and the variable frequency signal generator, and used to drive the variable frequency signal generator. The pressure sensitive cursor control device according to claim 3, wherein the larger the air pressure in the airtight space, the higher the frequency of the variable frequency signal; the smaller the air pressure in the airtight space, the variable frequency The frequency of the signal is smaller. An air-cushioning shoe comprising: a body portion; and an air cushion portion extending from one end of the body portion, the air cushion portion comprising the variable frequency signal generator as claimed in claim 1. The air-cushioning shoe of claim 7, wherein the body portion comprises: a control unit coupled to the variable frequency signal generator, the control unit configured to receive the variable frequency signal by the variable frequency signal generator, And outputting a control signal; and an action unit connected to the control unit for receiving the control signal and operating according to the control signal. The air-cushioning shoe of claim 8, wherein the body portion further comprises: a driving unit connected to the control unit and the variable frequency signal generator for driving the variable frequency signal generator. The air-cushioning shoe of claim 7, wherein the greater the air pressure in the airtight space, the greater the frequency of the variable frequency signal; the smaller the air pressure in the airtight space, the frequency of the variable frequency signal The smaller.