KR100877539B1

KR100877539B1 - Apparatus and method of space recognitionset using double key

Info

Publication number: KR100877539B1
Application number: KR1020080031611A
Authority: KR
Inventors: 임상수
Original assignee: (주)마이크로텍시스템
Priority date: 2008-04-04
Filing date: 2008-04-04
Publication date: 2009-01-07

Abstract

The present invention provides a location data by activating a spatial recognition function only when a user's operation is detected, and providing key data corresponding to a key selected by the user, and a location data received from the transmitter. Initiating the transmitter's spatial recognition function only when necessary, by initiating a wireless communication system that includes a receiver that displays a cursor at a location on the screen and, when confirmation key data is received, executes an icon function located on the cursor. In addition to minimizing the power consumption, the receiver does not disturb the screen viewing caused by the cursor.

Description

Apparatus and method of space recognition set using double key}

The present invention relates to a space-aware input method using a dual key and an apparatus thereof, and more particularly, to activate a space recognition function of a transmitter only when a user needs to minimize power consumption, as well as a receiver. Since the cursor is not displayed unless the recognition function is activated, the present invention relates to a space recognition input method using a double key and a device thereof, which does not cause the user to confuse screen viewing due to the cursor.

At present, various services have been developed due to the development of the Internet (network) and electronic technologies. Typically, the interactive television service provided by the high-speed Internet network has the advantage that the user can see only the programs he / she wants to watch at a convenient time. A home theater PC equipped with IPTV (Internet Protocol Television) services and audio and DVD-ROM functions instead of DVDs for home theaters enables users to enjoy audio, Internet, digital broadcasts, Internet games, and more on TV and movies. Media Center, a new concept PC that integrates various A / V entertainment multimedia functions such as HTPC (Home Theater Personal Computer) service that allows scheduled recording, and TV viewing and recording, video / sound playback and management, and digital photo management and storage PC, etc.

A service providing device (TV, PC, etc.) that provides such services is a three-dimensional approach, for example, a method of inputting simple information (number, power on / off, etc.) like a current remote controller, For example, when a remote controller is moved to a wrist in a space, a space recognition input method that detects a movement and points it in the form of a mouse cursor on the screen is required.

In addition, as input devices in computer environments that require 3D input such as Windows Vista and Google Earth, space recognition is needed as the next generation input device to replace the existing main input device keyboard and flat mouse is needed. Input devices have been developed.

The current input method of the space-aware input device has a disadvantage in that power consumption is large because the space recognition function is always activated. For example, in the case of IPTV, the user is confused when viewing the screen because the pointing cursor is always activated.

Accordingly, the present invention provides a space-aware input device having the above-described problem and a method thereof, and includes a double-keyed space recognition input method capable of minimizing power consumption by activating a space recognition function only when a user needs it. The object is to provide the device.

Another object of the present invention is to provide a method and an apparatus for inputting space recognition using a double key, which does not cause inconvenience of screen recognition due to a cursor displayed on a screen by activating a space recognition function only when a user needs it. have.

According to an aspect of the present invention, a wireless communication system includes a transmitter for providing key data corresponding to a key selected by a user, a cursor at a position of a screen corresponding to position data received from the transmitter, and a confirmation key. A receiver for executing an icon function located on the cursor when data is received, the transmitter comprising: a power supply unit for supplying driving power, a wireless interface unit for transmitting data to the receiver in the wireless communication scheme; And a spatial recognition unit for recognizing the movement of the user and measuring angular velocity and acceleration, a keypad provided with a plurality of function keys to provide a key signal selected by the user, and a manipulation detection key and a confirmation key. A dual key providing a key signal for selection of a key signal corresponding to a key signal received from the keypad If data is transmitted to the receiver, and an operation sensing key signal is received from the dual key, the controller switches to a space recognition mode for supplying driving power to the space recognition unit, and if the operation sensing key signal is not received, returns to the space recognition unit. Switch to a key input mode that does not supply the driving power, generate position data based on the angular velocity and acceleration measured by the space recognition unit in the space recognition mode, and transmit the position data to the receiver. If a signal is received, and comprises a central processing unit for transmitting the confirmation key data to the receiver.
The transmitter switches to a spatial recognition mode while the user's operation is detected, transmits position data according to the user's movement to the receiver, measures the angular velocity and acceleration according to the user's movement, and uses a reference navigation coordinate system. And Euler angles between the fuselage coordinate system to generate the position data.

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When the receiver receives the key data from the transmitter, the receiver processes a corresponding function, and when the position data is received, displays the cursor on a screen corresponding to the position data, and when the confirmation key data is received, the cursor If the icon function on the screen is displayed and the position data is not received, the cursor is not displayed on the screen.

According to another aspect of the present invention, a space-aware input device using a dual key includes a power supply unit for supplying driving power, a wireless interface unit for transmitting data through the wireless communication method, and an angular velocity and acceleration by recognizing a user's movement. It is composed of a space recognition unit for measuring a, a plurality of function keys, a keypad for providing a key signal selected by the user, an operation sensing key implemented by any one of a touch sensor or a detector switch, and a confirmation key, the user When an operation of is detected, the operation detection key signal is provided, and when the confirmation key is selected, a dual key providing the confirmation key signal and key data corresponding to the key signal received from the keypad are transmitted to the receiver. The driving power is supplied to the space recognition unit only when an operation detection key signal is received from the double key. And a central processing unit generating position data based on the angular velocity and acceleration measured by the spatial recognition unit and transmitting the position data to the receiver, and when the confirmation key signal is received from the double key. .

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According to another aspect of the present invention, there is provided a space recognition input method using a double key, wherein a transmitter supplies driving power for activating a space recognition function only when a user's operation is detected through a manipulation key of a double key. Switching to a recognition mode, and if the user's manipulation is not detected, supplying a driving power for activating the space recognition function to make a call to a key input mode; Recognizing the position data based on the angular velocity and acceleration according to the movement, transmitting the position data to the receiver in a wireless communication method, and when the user selects the confirmation key of the double key, the confirmation key data Transmitting to the receiver, and when the receiver receives the position data, the position data When the corresponding step of displaying the cursor on the screen, and a confirmation key data from the transmitter to the receiver, and a step of executing the function icon on the screen where the cursor is positioned.
The spatial recognition input method using the dual key may further include transmitting, by the transmitter, key data corresponding to a key selected by the user to the receiver, and the receiver processing a function according to the key data. do.

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Recognizing the movement of the user includes measuring the angular velocity and acceleration according to the movement of the user, and calculating the Euler angle between the reference navigation coordinate system and the fuselage coordinate system.

The spatial recognition input method using the dual key further includes the step of not displaying the cursor if the receiver does not receive the position data from the transmitter.

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According to the present invention described above, power consumption can be minimized by activating the spatial recognition function of the transmitter only when necessary, and the receiver does not display the cursor unless the user activates the spatial recognition function, so that the user is It can predict the effect that does not confuse the screen viewing.

Hereinafter, a space recognition input method using a dual key and an apparatus thereof according to the present invention will be described in detail with reference to the accompanying drawings, and a detailed description of the main technical matters of the present invention or a well-known description will be omitted.

1 is a block diagram illustrating a wireless communication system to which a spatial recognition input method according to the present invention is applied.

Referring to FIG. 1, when the spatial recognition function is activated, the wireless communication system according to the present invention recognizes a movement by a user's operation, detects position data according to the recognized movement, and key data according to a key selected by the user. A receiver 200 transmitting a wireless communication method and a cursor on a screen corresponding to position data received from the transmitter 100 and processing a function according to key information received from the transmitter 100. It includes.

The transmitter 100 corresponds to a spatial recognition input device which is a three-dimensional input device, and the receiver 200 is capable of receiving data through a wireless communication method such as an IPTV, a PC (media center PC, HTPC), a game machine, a robot, and a toy. This is true for all kinds of devices.

In the following detailed description of the present invention, a case in which the receiver 200 is mounted on an IPTV will be described. However, it can be seen that the same applies to the case where the receiver 200 is mounted in other devices.

2 is a block diagram illustrating a transmitter according to a preferred embodiment of the present invention.

Referring to FIG. 2, the transmitter 100 according to the present invention includes a power supply unit 110, a wireless interface unit 120, a central processing unit 160, a space recognition unit 130, a dual key 140, and a keypad ( 150, the central processing unit 160 includes a mode processing unit 170.

The power supply unit 110 supplies power for driving the transmitter 100. The power supply unit 110 may use a rechargeable battery or a universal battery capable of charging / discharging.

The keypad 150 may include a 3 × 4 array key and other function keys, and provide a key signal according to a user's key selection to the central processing unit 160.

The dual key 140 may be embodied as a pair of keys, and FIG. 3 is a diagram for describing the dual key. As illustrated, the dual key 140 may be embodied as the operation sensing key 141 and the confirmation key 142.

The manipulation detection key 141 may be implemented as a circuit element capable of sensing a user's manipulation, such as a touch sensor or a detector switch.

The operation detection key 141 transmits an operation detection signal to the central processing unit 160 when the user's operation is detected, and the confirmation key 142 transmits a confirmation signal to the central processing unit 160 when the user operates.

The radio interface unit 120 interfaces the transmitter 100 to transmit data to the receiver 200 in a wireless communication manner.

The central processing unit 160 transmits key data corresponding to the key signal received from the keypad 150 to the receiver 200 through the air interface unit 120.

When the operation detection signal is received from the operation detection key 141 of the dual key 140, the central processing unit 160 supplies driving power while activating the function of the space recognition unit 130.

That is, the mode processing unit 170 of the central processing unit 160 does not normally activate the space recognition function, maintains the key input mode for transmitting the key data received from the keypad 150, and when the operation detection signal is received, Switch to space-aware mode that supplies drive power to activate the space-aware function.

On the other hand, if the operation detection signal is not received, that is, the user does not select the operation detection key 141, the mode processing unit 170 switches from the space recognition mode to the key input mode, so that power consumption is minimized.

When the space recognition unit 130 is switched to the space recognition mode, that is, when the driving power is supplied, the space recognition unit 130 recognizes the user's movement, measures the angular velocity data and the acceleration data according to the movement of the transmitter 100, and then executes the central processing unit. Provided at 160.

Hereinafter, a method of recognizing the movement of the transmitter 100 by the spatial recognition unit 130 will be briefly described.

The space recognition unit 130 measures the angular velocity data according to the movement of the transmitter 100 by a user's operation, and the angular velocity data means an amount of change in angle per unit time by a gyroscope, and integrating the angular velocity data once Because it is an angle, you need an angular speedometer that is essential for calculating your posture.

The space recognition unit 130 measures acceleration data according to the movement of the transmitter 100 by a user's manipulation, and the acceleration data means measured acceleration, and calculates speed, distance, etc. by integrating the accelerometer data. Can be.

The central processing unit 160 calculates the Euler angle using the angular velocity data and the acceleration data measured by the spatial recognition unit 130.

In this case, the central processing unit 160 may calculate the Euler angle between the navigation coordinate system and the fuselage coordinate system rather than the angle in the fuselage coordinate system.

FIG. 4 is a diagram illustrating a navigation coordinate system and a fuselage sinus system. Referring to FIG. 4, a navigational frame defines an antibody as its origin, an N axis as north, an E axis as east, D-axis is a local-level coordinate system defined vertically down.

The D axis is perpendicular to the earth ellipsoid, the N axis is orthogonal from the local-level plane of the earth's rotation vector to the north, and the E axis forms the vertical axis to the right and to the plane of the two axes (D and N axes).

The body frame is the coordinate system defined as the origin of the antibody, the Xb axis is the forward direction of the antibody, the Yb axis is the right direction of the antibody with respect to the Xb axis, and the Zb axis is defined as the vertically downward direction of the antibody.

5 shows the Euler angle, referring to FIG. 5, the Euler angle is a rotational angle (pitch, roll, relative to a reference coordinate system, ie a navigation coordinate system fixed relative to the ground surface). Since the yaw) can be displayed, the absolute angle can be displayed so that the criteria for up, down, left and right are absolute.

Therefore, since the central processing unit 160 of the transmitter 100 according to the present invention uses the Euler angle between the reference navigation coordinate system and the fuselage coordinate system instead of the angle in the fuselage coordinate system, the user's movement can be represented more accurately.

On the other hand, if the Kalman Filtering technique can be used for the integration between the angular velocity data and the acceleration data and the bias correction, the central processing unit 160 is not a method of compensating the bias using a conventional activation button. to be.

Then, the central processing unit 160 recognizes the position data according to the movement of the transmitter 100 using the calculated Euler angle, and transmits the position data to the receiver 200 through the air interface unit 120. At this time, the central processing unit 160 continuously transmits the position data changed according to the continuous movement of the user to the receiver 200.

When the confirmation key signal is received in the space recognition mode, the central processing unit 160 transmits the confirmation key data to the receiver 200.

6 is a block diagram illustrating a receiver according to a preferred embodiment of the present invention.

Referring to FIG. 6, the receiver 200 according to the present invention includes a wireless receiver 210, a network interface 220, a main controller 240, and a display 230.

The wireless receiver 210 receives data transmitted from the transmitter 100 in a wireless communication scheme and provides the data to the main controller 240.

When the network interface 220 connects to the network, for example, when the receiver 200 is mounted on the IPTV, the network interface unit 220 transmits the content received from the broadcast providing server on the network to the main controller 240.

The display 230 displays a screen and a cursor on the screen.

The main controller 240 outputs the screen according to the content received through the network interface 220 through the display 230.

When the key data is received through the wireless receiver 210, the main controller 240 processes a function corresponding to the key data, for example, volume up / down, channel change, and the like.

Meanwhile, when the position data is received through the wireless receiver 210, the main controller 240 displays a cursor on a screen corresponding to the position data, and moves the position of the cursor to the corresponding screen as the position data is changed.

When the confirmation key data is received from the transmitter 100, the main controller 240 processes a function corresponding to an area where the cursor is located.

For example, when compared with input through a mouse, which is the main input device of a computer system, when the user moves the mouse to move the cursor on the monitor, and clicks OK, an icon function on the screen where the cursor is positioned is executed. Similarly, when the transmitter 100 switches to the spatial recognition mode, the transmitter 100 transmits position data according to the user's movement to the receiver 200, and the receiver 200 moves the cursor on the screen according to the position data.

When the receiver 200 receives confirmation key data from the transmitter 100, the receiver 200 executes an icon function of a screen on which the cursor is located.

According to the present invention, since the transmitter 100 does not input driving power to the space recognition unit 130 in a key input mode other than the space recognition mode, power consumption can be minimized and position data is not transmitted. Thus, the cursor is not displayed on the screen, so that the user does not have to experience confusion due to the cursor displayed unnecessarily on the screen.

7 is a flowchart illustrating a space recognition input method using a double key according to the present invention.

Referring to FIG. 7, the transmitter 100 checks whether the user selects the operation detection key 141 (S100), and maintains the key input mode if the operation detection key 141 is not selected (S100). 110).

That is, the transmitter 100 does not supply driving power to the space recognition unit 130 unless the user selects the manipulation detection key 141.

The transmitter 100 checks whether the user selects a key from the keypad 150 (S 120), and when selecting a key of the keypad 150, transmits the key data to the receiver 200 (S 130).

When the user selects the operation detection key 141, that is, when the user's operation is recognized, the transmitter 100 switches to a space recognition mode that supplies driving power to the space recognition unit 130 to activate the space recognition function. (S 140).

When the user's manipulation is recognized, the transmitter 100 recognizes the movement of the user and transmits the position data to the receiver 200 (S 150).

The transmitter 100 checks whether the user selects the confirmation key 142 (S160), and if the user selects the confirmation key 142, the transmitter 100 transmits confirmation key data to the receiver 200 (S 170).

The transmitter 100 confirms whether or not the operation of the operation confirmation key 142 is not recognized (S 180), that is, confirms whether the user releases the operation confirmation key 142, so that the user If the operation confirmation key 142 is not selected, the operation mode changes to the key input mode (S 190).

Meanwhile, when key data is received from the transmitter 100, the receiver 200 processes a function corresponding to the key data, for example, a volume up / down, a channel change function, and the like (S 200).

When the location data is received from the transmitter 100, the receiver 200 displays a cursor at a location of a screen corresponding to the location data (S 210).

When the receiver 200 receives the confirmation key data from the transmitter 100, the receiver 200 executes an icon function on the screen where the cursor is located (S220).

As described above, according to the space recognition input method according to the present invention, if the user does not select the operation confirmation key, the transmitter does not activate the space recognition function, thereby minimizing power consumption of the transmitter, and the receiver recognizes the space by the user. If you do not activate the function, the cursor is not displayed, so that the user does not get confused by viewing the screen.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

3 is a diagram for explaining a double key;

4 is a diagram showing a navigation coordinate system and a fuselage crime system;

5 is a diagram showing an Euler angle.

** Description of the symbols for the main parts of the drawings **

100: transmitter 110: power supply

120: wireless interface unit 130: space recognition unit

140: double key 141: operation detection key

142: OK key 150: Keypad

160: central processing unit 170: mode processing unit

200 receiver 210 wireless receiver

220: network interface unit 230: display unit

240: main control unit

Claims

In a wireless communication system,

A transmitter providing key data corresponding to a key selected by a user;

And a receiver for displaying a cursor at a position of a screen corresponding to the position data received from the transmitter, and executing the icon function positioned on the cursor when confirmation key data is received.

The transmitter,

A power supply for supplying driving power;

A wireless interface unit for transmitting data to the receiver through the wireless communication method;

A space recognition unit for recognizing a user's movement and measuring angular velocity and acceleration;

A keypad implemented with a plurality of function keys to provide a key signal selected by the user;

A dual key implemented with an operation detection key and a confirmation key to provide a key signal of the user's selection;

Transmitting key data corresponding to the key signal received from the keypad to the receiver, and when an operation sensing key signal is received from the dual key, switches to a space recognition mode for supplying driving power to the space recognition unit, and detects the manipulation. If a key signal is not received, the controller switches to a key input mode in which the driving power is not supplied to the space recognition unit, and generates position data based on the angular velocity and acceleration measured by the space recognition unit in the space recognition mode. And a central processing unit configured to transmit to the receiver and, when the confirmation key signal is received from the dual key, to transmit confirmation key data to the receiver.

The method of claim 1, wherein the transmitter,

And switching to a spatial recognition mode while the user's manipulation is detected, and transmitting position data according to the user's movement to the receiver.

The method of claim 1, wherein the transmitter,

And measuring the angular velocity and acceleration according to the movement of the user, calculating the Euler angle between the reference navigation coordinate system and the fuselage coordinate system to generate the position data.

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The method of claim 1, wherein the receiver,

When key data is received from the transmitter, the function is processed, and when the position data is received, a cursor is displayed on a screen corresponding to the position data, and when the confirmation key data is received, the screen is displayed. And executing an icon function on the computer.

The method of claim 6, wherein the receiver,

And the cursor is not displayed on the screen if the position data is not received.

In the space-aware input device,

A power supply for supplying driving power;

A wireless interface unit for transmitting data through the wireless communication method;

Dual key which is composed of an operation detection key and a confirmation key implemented by any one of a touch sensor or a detector switch, and provides an operation detection key signal when the user's operation is detected, and selects the confirmation key, and provides a confirmation key signal. Wow,

The key data corresponding to the key signal received from the keypad is transmitted to the receiver, and the driving power is supplied to the space recognition unit only when the operation detection key signal is received from the double key, and the space recognition unit is measured. A spatial recognition input device using a dual key including a central processing unit for generating position data based on the angular velocity and acceleration and transmitting the position data to the receiver and receiving a confirmation key signal from the double key. .

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In the space-aware input method,

Transmitting the transmitter to the space recognition mode by supplying driving power for activating the space recognition function only when the user's operation is detected through the double key operation detection key;

If the user's operation is not detected, supplying a driving mode for activating the space recognition function to call a key input mode;

Recognizing positional data based on angular velocity and acceleration according to the user's movement in the spatial recognition mode;

Transmitting the location data to a receiver in a wireless communication scheme;

When the user selects the confirmation key of the dual key, transmitting confirmation key data to the receiver;

When the receiver receives the location data, displaying a cursor on a screen corresponding to the location data;

And receiving confirmation key data from the transmitter, executing the icon function on the screen on which the cursor is located.

The method of claim 10,

Transmitting, by the transmitter, data corresponding to a key selected by a user from among a plurality of function keys implemented on the keypad to the receiver;

And receiving, by the receiver, a function according to the key data.

The method of claim 10, wherein the recognizing a movement of the user comprises:

Measuring angular velocity and acceleration according to the movement of the user;

A spatial recognition input method using a double key comprising calculating a Euler angle between a reference navigation coordinate system and a fuselage coordinate system.

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The method of claim 10,

And if the receiver does not receive the location data from the transmitter, not displaying the cursor.