KR100693591B1 - Wireless communication terminal and its method for recognizing inclined direction as direction key input signal - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a wireless communication terminal and a method having a function of recognizing a tilt and a direction as a direction key input signal.

2. The technical problem to be solved by the invention

According to the present invention, the wireless communication terminal recognizes the direction (up, down, left, right) and inclination of the wireless communication terminal as corresponding direction key input signals using the orientation sensor and the inclination sensor, thereby allowing the user to specify the wireless communication terminal. It is an object of the present invention to provide a wireless communication terminal and a method for recognizing a tilt and a direction as a direction key input signal, so as to replace the input of the direction key by tilting in the direction.

3. Summary of the Solution of the Invention

The present invention provides a wireless communication terminal having a function of recognizing a tilt and a direction as a direction key input signal, comprising: input means for receiving a tilt and direction key input mode setting / release request signal; Azimuth sensing means for sensing azimuth of the wireless communication terminal and transferring a corresponding azimuth sensing signal to a control means; Inclination sensing means for sensing an inclination of the wireless communication terminal and transmitting a corresponding inclination sensing signal to the control means; And setting and releasing the tilt and direction key input modes according to the tilt and direction key input mode setting / release request signals from the input means, and the direction sensing signal and the tilt sensing signal received from the direction sensing means and the tilt sensing means. The control means for detecting the tilt and the direction by using a direction key input signal.

4. Important uses of the invention

The present invention is used in a wireless communication terminal.

Wireless communication terminal, orientation sensor, tilt sensor, tilt and direction, direction key recognition

Description

Wireless communication terminal and its method for recognizing tilt and direction as direction key input signal {Wireless communication terminal and its method for recognizing inclined direction as direction key input signal}

1 is a configuration diagram of a wireless communication terminal having a function of recognizing a tilt and a direction as a direction key input signal according to the present invention.

2 is a flowchart illustrating a method for recognizing a tilt and a direction as a direction key input signal in a wireless communication terminal according to the present invention.

3 is a diagram illustrating a method of recognizing a tilt and a direction as a direction key input signal in a wireless communication terminal according to the present invention.

* Explanation of symbols on the main parts of the drawing

10: inclination sensor 11: wireless transmission and reception device

12: operation / control device 13: codec

14: storage device 15: audio output device (speakers)

16: display device (LCD) 17: input device (keypad)

18: voice input device (microphone) 19: orientation sensor

The present invention relates to a wireless communication terminal and a method for recognizing a tilt and a direction as a direction key input signal, and more particularly, to a direction of a wireless communication terminal using an orientation sensor and an inclination sensor in a wireless communication terminal. Tilt and Up, Down, Left, Right) and Tilt to recognize the corresponding direction key input signal, so that the user can substitute the up, down, left, and right direction keys by tilting the wireless communication terminal in a specific direction. A wireless communication terminal having a function of recognizing a direction as a direction key input signal and a method thereof.

In the present invention, a wireless communication terminal is a mobile communication terminal, a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smart phone, a next generation mobile communication terminal (IMT-2000), wireless communication while carrying an individual such as a wireless LAN terminal Say this is possible terminal.

In the early days, the theme of wireless communication terminals was miniaturization and light weight. That is, "smaller and lighter" was the interest of the user and the supplier, but in recent years, the interest in the wireless communication terminal that can use a complex function while maintaining a compact and lightweight. For example, attention is focused on wireless communication terminals that add wireless Internet services, game functions, MP3 player functions, functions of electrical and electronic products such as TV broadcast reception, and compass functions.

In particular, the wireless communication terminal equipped with a compass function can be used not only to make it easy for the user to find a destination, but also for emergency rescue. Generally, a compass sensor and a tilt sensor are used to implement a compass function in a wireless communication terminal.

By the way, it is very convenient to perform the direction (up, down, left, right) key input function using the orientation sensor and the inclination sensor provided in the wireless communication terminal to implement the compass function. That is, when frequently using the direction keys, such as writing a short message (SMS) or using a game, tilting the wireless communication terminal in a desired direction (up, down, left, right) instead of pressing the keypad one by one. It would be very convenient to use directional keystrokes instead.

The present invention has been proposed to meet the above requirements, and inputs a direction key corresponding to the direction (up, down, left, right) and tilt of the wireless communication terminal using the orientation sensor and the tilt sensor in the wireless communication terminal. Recognizing the signal, the wireless communication terminal having a function of recognizing the tilt and the direction to the direction key input signal of the up and down, left and right to replace the input of the direction key by the user tilting the wireless communication terminal in a specific direction and The purpose is to provide a method.

The apparatus of the present invention for achieving the above object, in a wireless communication terminal having a function of recognizing the tilt and direction as a direction key input signal, input means for receiving a tilt and direction key input mode setting / release request signal ; Azimuth sensing means for sensing azimuth of the wireless communication terminal and transferring a corresponding azimuth sensing signal to a control means; Inclination sensing means for sensing an inclination of the wireless communication terminal and transmitting a corresponding inclination sensing signal to the control means; And setting and releasing the tilt and direction key input modes according to the tilt and direction key input mode setting / release request signals from the input means, and the direction sensing signal and the tilt sensing signal received from the direction sensing means and the tilt sensing means. It characterized in that it comprises a control means for detecting the direction and the tilt using the direction key input signal of the up, down, left and right.

Meanwhile, the method of the present invention is a method of recognizing a tilt and a direction as a direction key input signal in a wireless communication terminal having a control means, an input means, an orientation sensing means, and a tilt sensing means, wherein the tilt and direction through the input means. A tilt and direction key input mode setting step of setting the tilt and direction key input modes according to the key input mode setting request signal; A tilt and direction sensing step of sensing a direction and a tilt of the wireless communication terminal through the direction sensing means and the tilt sensing means in a tilt and direction key input mode; A direction key input signal recognizing step of recognizing, by the control means, the detected tilt and direction as corresponding up, down, left, and right direction key input signals; And releasing the tilt and direction key input modes to release the tilt and direction key input modes according to the tilt and direction key input mode release request signals through the input means.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a wireless communication terminal having a function of recognizing a tilt and a direction as a direction key input signal according to the present invention.

As shown in FIG. 1, the wireless communication terminal having a function of recognizing the tilt and the direction as a direction key input signal according to the present invention includes a wireless transmitting and receiving device 11 for transmitting and receiving a signal wirelessly through an antenna and the wireless. Drive and control the communication terminal, set / cancel the tilt and direction key input mode according to the tilt / direction key input mode setting / release signal received through the input device (keypad) 17, and tilt and direction key input mode. Is set to detect the direction and inclination by using the direction sensing signal and the inclination sensing signal transmitted from the orientation sensor 19 and the inclination sensor 10, and inputs the detected inclination and the direction keys up, down, left, and right. Computation / control device 12 for recognizing a signal, the signal received from the wireless transmission and reception device 11 in accordance with the control of the calculation / control device 12 Converts the last name into a voice output device (speaker) 15, converts the voice received from the voice input device (microphone) 18 into a signal, and transmits the signal to the operation / control device 12 to transmit the wireless reception device. (11) a codec (13) to be transmitted through, a storage device (14) for storing programs and file systems (images, characters, icons) for driving the wireless communication terminal, the codec ( A voice output device (speaker) 15 for outputting the voice received from the CODEC 13, a display device (LCD) 16 for outputting a screen according to the control of the operation / control device 12, and a button An input device (keypad) 17 for receiving a phone number, menu selection information, tilt and direction key input mode setting / release request signals, and the like for receiving a voice and delivering the same to the codec 13. Voice input device (microphone) 18, wireless communication terminal The azimuth sensor 19 for detecting the above and transmitting a corresponding azimuth sensing signal to the arithmetic / control device 12, and a tilt of a wireless communication terminal to detect a corresponding inclination sensing signal arithmetic / control device 12 Inclination sensor 10 for delivery.

The operation / control device 12 sets or cancels the tilt and direction key input mode according to the tilt and direction key input mode setting / release request signal received through the input device (keypad) 17.

That is, the operation / control device 12 detects the direction and the tilt using the direction sensing signal and the tilt sensing signal transmitted from the direction sensor 19 and the tilt sensor 10 when the tilt and direction key input modes are set. In addition, the sensed tilt and direction are recognized as corresponding up, down, left, and right direction key input signals, so that the user substitutes the direction key input by tilting the wireless communication terminal in a specific direction.

On the contrary, in the state in which the tilt and direction key input modes are released, the direction key input signal is generated by the user pressing the direction key as in the related art, and the azimuth sensor 19 and the tilt sensor 10 operate as a compass function.

The orientation sensor 19 senses the orientation of a target object (wireless communication terminal), and transmits a corresponding orientation sensing signal to the operation / control device 12, a magneto-resistive (MR) sensor, a magnetic impedance sensor. Etc. are used.

For reference, a magneto-resistive (MR) sensor is a ferromagnetic thin film magnetoresistive element, which is a non-contact magnetic sensor that uses a phenomenon in which a path of a carrier moving in a solid according to the direction and intensity of a magnetic field is bent by an electromagnetic force to change resistance The sensor element is applied to various speed rotation position magnetic discrimination. The magnetoresistance (MR) sensor has a wide range for detecting a magnetic field, and in particular, has a capability of detecting even a small magnetic field. Many studies have been made to apply it as an electronic compass. The electronic compass which finds the direction by detecting the strength of the earth's magnetic field by using the magnetoresistive (MR) element has the advantage of being electrically decomposed better than the rotation of 0.1 degree.

On the other hand, the magnetic impedance sensor is a kind of direction sensor that serves to find the position of the earth's magnetic field by using electrical energy, and detects the magnetic field from the change in resistance value (impedance) by using a high frequency current flowing through the thin magnetic film. In general, the magnetic field strength with respect to the earth's polar direction is highest when it is in a direction coinciding with the Earth's north pole, and weakest when it is in a direction coincident with the Earth's Antarctic direction. Therefore, the largest analog voltage is output when the output of the magnetic impedance sensor is also coincident with the north pole direction in proportion to the magnetic field strength, and the smallest analog voltage is output when it matches the south pole direction.

The inclination sensor 10 detects an inclination of an object (wireless communication terminal) and transmits an inclination sensing signal corresponding to the inclination to the operation / control device 12.

Meanwhile, the orientation sensor 19 and the inclination sensor 10 may transmit the orientation sensing signal and the inclination sensing signal to the operation / control device 12 at predetermined intervals, and the detected orientation or inclination may be changed by more than a preset threshold. Only when there is a corresponding azimuth sensing signal and the tilt sensing signal may be transmitted to the operation / control device 12.

The overall operation of the present invention will be described in detail with reference to FIG. 2.

2 is a flowchart illustrating a method of recognizing a tilt and a direction as a direction key input signal in a wireless communication terminal according to the present invention.

First, the operation / control device 12 of the wireless communication terminal sets the tilt and direction key input mode according to the tilt and direction key input mode setting request signal received through the input device (keypad) 17 (201). .

In operation 202, the operation / control device 12 receives an azimuth sensing signal and a tilt sensing signal from the azimuth sensor 19 and the inclination sensor 10 in a state where a tilt and direction key input modes are set.

Then, the operation / control device 12 detects the direction and the tilt using the received azimuth sensing signal and the tilt sensing signal (203). Then, the detected tilt and direction are recognized as a corresponding direction key input signal (204), and the corresponding operation (for example, cursor movement in the corresponding direction) is processed.

At this time, the operation / control device 12 changes the direction sensing signal and the slope sensing signal transmitted from the orientation sensor 19 and the tilt sensor 10 to each direction key (up, down, left, right). Detects in the tilt and direction only when within the valid range. That is, as shown in FIG. 3, it is recognized as a corresponding direction key input signal only when the movement (tilt) of the wireless communication terminal falls within the valid range, and is ignored when the movement (tilt) of the wireless communication terminal does not fall within the valid range. do.
For example, the arithmetic / control device 12 has a change in the direction sensing signal (ie, a change in the direction (or a direction) of the wireless communication terminal) while belonging to the left side (for example, the east side) with respect to the vertical line in the vertical direction, Furthermore, the motion of the wireless communication terminal by the user is recognized as the left key input signal only when the mobile device falls within the range of + 30 ° to -30 ° based on the horizontal horizontal line (see FIG. 3). In this case, the change in the tilt sensing signal (that is, the change in the tilt (or tilt) of the wireless communication terminal) is ignored.
In addition, the operation / control device 12 further includes a change in the direction sensing signal (ie, a change in the direction (or orientation) of the wireless communication terminal) on the right side (eg, west) with respect to the vertical line in the vertical direction. Only when the mobile device falls within the range of + 30 ° to -30 ° based on the horizontal horizontal line, the user's movement of the wireless communication terminal is recognized as a right key input signal (see FIG. 3). Even in this case, variation of the tilt sensing signal (i.e., tilt (or tilt) variation of the wireless communication terminal) is ignored.
In addition, the arithmetic / control device 12 has the above-described left + 30 ° to -30 ° and the variation of the direction sensing signal (that is, the direction (or direction) change of the wireless communication terminal) on the horizontal line in the horizontal direction. It is outside the range of + 30 ° to -30 ° on the right side and at the same time, only when the fluctuation of the tilt sensing signal (i.e., the tilt (or tilt) fluctuation of the wireless communication terminal) indicates below the preset threshold (i.e. Only when the terminal is inclined below a predetermined threshold value), the user's movement of the wireless communication terminal is recognized as an up key input signal (see FIG. 3).
Further, the operation / control device 12 may be configured such that the fluctuation of the direction sensing signal (that is, the fluctuation of the direction (or direction) of the wireless communication terminal) is set to the left + 30 ° to -30 ° and the horizontal line is described above. It is outside the range of + 30 ° to -30 ° on the right side, and at the same time, only when the fluctuation of the tilt sensing signal (i.e., the tilt (or tilt) fluctuation of the wireless communication terminal) indicates more than the preset threshold (i.e. Only when the terminal is inclined above the preset threshold), the movement of the wireless terminal by the user is recognized as a down key input signal (see FIG. 3).
Of course, in the above-described upper / lower key input signal recognition situation, whether or not to apply the threshold value / less than may be elastically changed according to the situation. That is, when the variation of the tilt sensing signal indicates the lower key input signal, the operation control apparatus 12 recognizes it as a lower key input signal, and when the variation of the tilt sensing signal indicates the threshold value or more, the upper key input. It can be recognized as a signal.

Subsequently, when the user inputs the tilt and direction key input mode release request signal through the input device (keypad) 17, the tilt and direction key input modes are canceled, and the user presses the direction key as in the prior art. An input signal is generated and the azimuth sensor 19 and the tilt sensor 10 operate in a compass function.

On the other hand, the tilt in each direction (up, down, left, right) of the wireless communication terminal may be implemented to recognize as a function key other than the direction key.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention, by using the orientation sensor and the inclination sensor in the wireless communication terminal by recognizing the tilt and the direction (up, down, left, right) of the wireless communication terminal as a corresponding direction key input signal, the user wireless communication By tilting the terminal in a desired direction, it is possible to substitute an input of a direction key, thereby greatly improving the convenience of the user.

Claims (6)

In a wireless communication terminal having a function of recognizing tilt and direction as a direction key input signal, Input means for receiving a tilt / direction key input mode setting / release request signal; Azimuth sensing means for sensing azimuth of the wireless communication terminal and transferring a corresponding azimuth sensing signal to a control means; Inclination sensing means for sensing an inclination of the wireless communication terminal and transmitting a corresponding inclination sensing signal to the control means; And The tilt and direction key input modes are set / released according to the tilt and direction key input mode setting / release request signals from the input means, and the direction sensing signals and the tilt sensing signals received from the direction sensing means and the tilt sensing means are set. Control means for recognizing direction and tilt by using direction key input signal of up, down, left and right Wireless communication terminal having a function of recognizing the tilt and direction comprising a direction key input signal. The method of claim 1, The direction sensing means and the inclination sensing means, Wireless communication having a function of recognizing inclination and direction as a direction key input signal, wherein a corresponding direction sensing signal and a tilt sensing signal are transmitted to the control means according to a change in the detected orientation and inclination over a threshold value. terminal. The method according to claim 1 or 2, The control means The movement of the terminal is recognized as a left key input signal when the change in the direction sensing signal belongs to the left side based on the vertical line in the vertical direction and falls within the range of + 30 ° to -30 ° based on the horizontal line in the horizontal direction. , When the change in the direction sensing signal belongs to the right side of the vertical line in the vertical direction and falls within the range of + 30 ° to -30 ° based on the horizontal line in the horizontal direction, the movement of the terminal is recognized as the right key input signal. , While the fluctuation of the azimuth sensing signal is outside the ranges of the left + 30 ° to -30 ° and the right + 30 ° to -30 ° based on a horizontal horizontal line, the fluctuation of the inclination sensing signal is less than a preset threshold. When it is displayed, the movement of the terminal is recognized as an up key input signal. While the fluctuation of the azimuth sensing signal is outside the ranges of the left + 30 ° to -30 ° and the right + 30 ° to -30 ° based on a horizontal horizontal line, the fluctuation of the inclination sensing signal may be greater than or equal to the threshold value. The wireless communication terminal having a function of recognizing a tilt and a direction as a direction key input signal, wherein the movement of the terminal is recognized as a down key input signal. A method of recognizing a tilt and a direction as a direction key input signal in a wireless communication terminal having a control means, an input means, an orientation sensing means, and an inclination sensing means, A tilt and direction key input mode setting step of setting the tilt and direction key input modes according to the tilt and direction key input mode setting request signal through the input means; A tilt and direction sensing step of sensing a direction and a tilt of the wireless communication terminal through the direction sensing means and the tilt sensing means in a tilt and direction key input mode; A direction key input signal recognizing step of recognizing, by the control means, the detected tilt and direction as corresponding up, down, left, and right direction key input signals; And A tilt and direction key input mode releasing step of releasing the tilt and direction key input modes according to the tilt and direction key input mode release request signal through the input means; Method of recognizing the tilt and direction as a direction key input signal in a wireless communication terminal comprising a. delete The method of claim 4, wherein The direction key input signal recognition step, When the azimuth change of the wireless communication terminal sensed by the azimuth sensing means belongs to the left side with respect to the vertical line in the vertical direction, and falls within the range of + 30 ° to -30 ° based on the horizontal line in the horizontal direction, wireless communication Recognizing a movement of the terminal as a left key input signal; When the azimuth change of the wireless communication terminal sensed by the azimuth sensing means belongs to the right side based on the vertical line in the vertical direction, and falls within the range of + 30 ° to -30 ° based on the horizontal line in the horizontal direction, wireless communication Recognizing a movement of the terminal as a right key input signal; The inclination sensing of the wireless communication terminal sensed by the direction sensing means is outside the ranges of the left + 30 ° to -30 ° and the right + 30 ° to -30 ° based on a horizontal horizontal line. Recognizing a movement of the wireless communication terminal as an up key input signal when the inclination change of the wireless communication terminal sensed by the means indicates less than a preset threshold; The inclination sensing of the wireless communication terminal sensed by the direction sensing means is outside the ranges of the left + 30 ° to -30 ° and the right + 30 ° to -30 ° based on a horizontal horizontal line. When the tilt variation of the wireless communication terminal detected by the means indicates the threshold value or more, the step of recognizing the movement of the terminal as a down key (down key) input signal, characterized in that the tilt and direction in the wireless communication terminal How to recognize as direction key input signal.

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