KR100699670B1 - A display system utilizing a remote input device - Google Patents

Abstract

A display system using a remote input device is provided to enable a user to generate character information in a display terminal by using the remote input device in case that the display terminal is a remote place and enable the user to easily input a command signal to the display terminal in a dark place by using the remote input device. The remote input device(10) transmits ultrasonic and infrared, and a remote controller(20) outputs position coordinate value information of the remote input device by receiving the ultrasonic/infrared. The display terminal(30) executes the information corresponding to a position coordinate value output from the remote controller to the display screen. The remote controller includes each ultrasonic sensors(22) for receiving the ultrasonic waves transmitted from the remote input device, an infrared sensor(24) for receiving the infrared ray transmitted from the remote input device, a detector(26) detecting the position coordinate value of the remote input device by using the information for an ultrasonic/infrared reception time difference, and a transmitter(28) transmitting the position coordinate value to the display terminal.

Description

Display system using remote input device {A DISPLAY SYSTEM UTILIZING A REMOTE INPUT DEVICE}

1 schematically shows a display system using a remote input device according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating an internal configuration of a remote input device in the system of FIG. 1.

3 is a block diagram illustrating an internal configuration of a remote controller in the system of FIG. 1.

4 is a block diagram illustrating an internal configuration of a display terminal in the system of FIG. 1.

5 is a flowchart illustrating a process of executing text information or a command signal on a display screen using a remote input device according to an embodiment of the present invention.

Figure 6 shows the arrangement of the ultrasonic sensor provided in the remote control according to an embodiment of the present invention in a three-dimensional coordinate space.

The present invention relates to a display system using a remote input device. More particularly, a user generates a text information or a command signal by moving a remote input device in a text form or a predetermined form, and generates the text information or command signal. The present invention relates to a display system capable of executing on a display screen.

With the development of electronic technology, the performance of display terminals such as televisions, monitors connected to personal computers, mobile communication terminals, and the like has been steadily improved, and methods of inputting text information or command signals to such display terminals are easier. The situation is being improved. For example, in the past, in order to input text information into a display terminal, desired character information was generated by directly operating a key button provided in the terminal. However, today, the electronic pen is directly contacted on the display screen as the electronic pen moves. By generating character information on the screen, a function that enables a user who can not skillfully manipulate key buttons to easily generate characters is supported.

Meanwhile, when a user wants to input a general command to the display terminal, the user can input a desired command using a remote controller without directly pressing or manipulating a key button provided in the display terminal. For example, even when the television viewer is far from the television, the television viewer can change the channel of the television, adjust the volume, or the like using the remote controller.

However, as described above, when the character information is generated on the display terminal using the electronic pen, the electronic pen must be directly contacted on the screen of the terminal.

As described above, when a command signal is input to a display terminal using a remote controller, it is difficult to find a desired key button among a plurality of key buttons provided in the remote controller in a dark room.

Accordingly, there is a demand for a technology that can generate text information even when the display terminal is in a remote state, and can easily input a command signal to the display terminal even in a dark place.

In order to solve the above problems, an object of the present invention is to provide a method and system capable of generating text information on a display terminal using a remote input device even when the display terminal is in a remote state. Another object of the present invention is to provide a method and system that can easily input a command signal to a display terminal using a remote input device even in a dark place. Still other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

According to an aspect of the present invention, there is provided a method of using a remote input device in a display terminal, the method comprising: receiving ultrasonic waves and infrared rays transmitted from the same remote input device through an ultrasonic sensor and an infrared sensor; Detecting a position coordinate value of a movement trajectory of the remote input device based on the received information of the ultrasonic wave and the infrared ray; Transmitting the detected position coordinate values to a terminal having a display screen; Searching for text information or a command signal corresponding to the position coordinate value; And executing the searched text information or command signal on the display screen.

According to another aspect of the present invention, a display system using a remote input device includes: a remote input device for transmitting ultrasonic waves and infrared rays; A remote controller for receiving the ultrasonic waves and infrared rays and outputting position coordinate value information of the remote input device; And a display terminal configured to execute information corresponding to the position coordinate value output from the remote controller on a display screen.

Hereinafter, a display system using a remote input device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 schematically illustrates the configuration of a system using a remote input device in a display terminal according to the present invention. As shown, the system according to the present invention may include a remote input device 10, a remote controller 20 and a display terminal 30.

The remote input device 10 emits infrared rays and ultrasonic waves as a means for inputting a user's command on a two-dimensional plane or a three-dimensional space. FIG. 2 is a detailed block diagram illustrating an internal configuration of the remote input device 10 in the system of FIG. 1. As shown, the remote input device 10 of FIG. 2 includes an ultrasonic transmitter 12 for transmitting ultrasonic waves, an infrared transmitter 14 for transmitting infrared rays, and the on / off of the remote input apparatus 10. It may be configured to include a switch 16 for controlling the off operation, and a controller 18 for controlling the operation of the ultrasonic transmitter 12 and the infrared transmitter 14. And a power supply Vcc.

The controller 18 performs a function of controlling the transmission time interval of the ultrasonic waves transmitted from the ultrasonic transmitter 12 or the transmission of the infrared rays transmitted from the infrared transmitter 14.

The switch 16 is a component for emitting or stopping the emission of ultrasonic waves and infrared rays. For example, when the remote input device 10 is not used, the switch 16 is turned off, and when the user wants to generate text information or a command signal by moving the remote input device 10, the remote input device. The remote input device 10 can be configured to emit ultrasonic waves and infrared rays by placing the switch 16 in the on state while moving the 10.

The ultrasonic transmitter 12 transmits ultrasonic waves at a predetermined frequency under the control of the controller 18. The transmitted ultrasound is received by the remote controller 20 and used to detect a position coordinate value of the remote input device 10.

The infrared ray transmitting unit 14 transmits infrared rays under the control of the controller 18. The transmitted infrared rays are used to calculate the movement and position of the remote input device 10 together with the ultrasonic waves transmitted from the ultrasonic transmitter 12.

The remote controller 20 receives the ultrasonic waves and infrared rays from the remote input device 10 and calculates a position coordinate value of the remote input device 10. 3 is a block diagram showing an internal configuration of a remote controller 20 according to an embodiment of the present invention. As illustrated, the remote controller 20 may include an ultrasonic sensor 22, an infrared sensor 24, a detector 26, and a transmitter 28.

The ultrasonic sensor 22 is a component for receiving ultrasonic waves transmitted from the remote input device 10. When measuring the position coordinate value of the movement trajectory on the two-dimensional plane of the remote input device 10, the ultrasonic sensor 22 should be provided in two or more, on the three-dimensional space of the remote input device 10 When measuring the position coordinate value for the movement trajectory of the ultrasonic sensor 22 should be provided with three or more. The ultrasonic waves transmitted from the remote input device 10 arrive at the ultrasonic sensors 22 with a time difference.

The infrared sensor 24 is a component for receiving infrared rays transmitted from the remote input device 10.

The detector 26 detects the position coordinates of the remote input device 10 by using the ultrasonic and infrared reception information received by the ultrasonic sensor 22 and the infrared sensor 24.

The transmitting unit 28 transmits the detected position coordinate value information to the terminal 30 having the display screen.

The display terminal 30 receives position coordinate value information of the remote input device 10 from the remote controller 20 and executes information corresponding to the received position coordinate value on the display screen. 4 is a block diagram illustrating an internal configuration of a display terminal according to an embodiment of the present invention. As shown in FIG. 4, the display terminal 30 may include a data storage unit 31, a receiver 32, a display controller 33, and a display screen 34.

The data storage unit 31 is an element for storing each position coordinate value and corresponding character information or command signal. For example, the letter "A" may be set to correspond to the position coordinate value corresponding to the movement trajectory of the form "A" and stored. When the display terminal 30 is a television, the position coordinate value corresponding to the movement trajectory of the form "7" may be set and stored to correspond to a command signal for changing the channel of the television to the channel "7". In this manner, the type of the position coordinate value and the character information or command signal corresponding thereto may be preset and stored in the data storage unit 31.

The receiving unit 32 is an element for receiving the position coordinate value information of the movement trajectory of the remote input device 10 detected by the remote controller 20 from the remote controller 20.

The display controller 33 performs a function of retrieving text information or command signals corresponding to the position coordinate values input through the receiver 32 from the data storage unit 31 and executing them on the display screen 34. . For example, in a state in which the letter “A” is set to correspond to the position coordinate value corresponding to the movement trajectory of the “A” type in the data storage unit 31 and stored therein, the “A” type through the receiver 32 is stored. When the position coordinate value corresponding to the movement trajectory is input, the display controller 33 searches for the character information "A" corresponding to the input value from the data storage unit 31 and displays the found character "A". Output to the screen 34.

5 is a flowchart illustrating a process of executing text information or a command signal on a display screen using a remote input device according to an embodiment of the present invention. A process of executing text information or command signal according to the present invention will be described with reference to FIGS. 2 to 5 as follows.

When the user moves the remote input device 10 in a predetermined form to generate text information or a command signal, the remote controller 20 receives ultrasonic waves and infrared rays transmitted from the remote input device 10 (S10).

The remote controller 20 receives the ultrasonic wave and the infrared ray through the ultrasonic sensor 22 and the infrared sensor 24 provided therein, and detects the position coordinate value of the movement trajectory of the remote input device 10 ( S20). In this case, in order to detect the position coordinate value of the movement trajectory on the two-dimensional plane of the remote input device 10, the ultrasonic sensor 22 should be provided at least two, the three-dimensional of the remote input device 10 In order to detect the position coordinate value of the movement trajectory in space, the ultrasonic sensor 22 should be provided with three or more. Since the detection of the position coordinate value on the two-dimensional plane is already known generally, only the position coordinate value detection on the three-dimensional space will be described herein.

FIG. 6 illustrates an arrangement state of the ultrasonic sensor 22 provided in the remote controller 20 in a three-dimensional coordinate space. In order to detect the position coordinate value of the movement trajectory in the three-dimensional space of the remote input device 10, three or more ultrasonic sensors 22 are arranged on the same plane in the remote controller 20. As shown in FIG. 6, it can be seen that three ultrasonic sensors 22 are disposed on the virtual XY plane. In this arrangement, when the infrared and ultrasonic waves are transmitted from the remote input device 10, the infrared receiver detects the transmitted infrared rays, and each ultrasonic sensor 22 detects and receives the transmitted ultrasonic waves.

When the infrared and the ultrasonic waves are received as described above, the distance values a, b, and c of the respective ultrasonic sensors 22 and the remote input device 10 are measured.

Here, the positions of the first, second and third ultrasonic sensors 22 are respectively referred to the origin A (0,0,0) on the XYZ coordinates, point B (1,0,0) on the X axis, and point C on the Y axis. Set to (0,1,0), the distance from each ultrasonic sensor 22 to the remote input device 10 located at an arbitrary coordinate P (x, y, z) in the three-dimensional space is a, b, c, respectively. In this case, the equation of the circle centered on the coordinates A, B, and C of each ultrasonic wave is shown in Equation 1 below.

Here, the detection unit 26 uses the time difference between the ultrasonic signal received by each ultrasonic sensor 22 and the infrared signal received by the infrared receiver to reach the remote input device 10 (a, b, c) can be obtained. That is, the distance values a, b, and c may be measured based on a difference between the time at which the infrared receiver is received by the infrared receiver and the time at which the ultrasonic sensor 22 receives the ultrasonic waves. have. As described above, in the state where the a, b, and c values are obtained, the position coordinate values (x, y, z) according to the movement in the space of the remote input device 10 are detected using the same.

In order to know the coordinate value where the remote input device 10 is located, the following Equation 2 may be derived from Equation 1 above.

Substituting the above-mentioned a, b, and c values into equations (2-1) and (2-2), respectively, the x and y coordinate values can be known, and the x and y coordinate values can be any one of equations (1). The z coordinate value can be known by substituting

In this manner, the trajectory of the remote input device 10 can be accurately calculated by measuring the position coordinate value of the remote input device 10 moving in space.

When the position coordinate value of the movement trajectory of the remote input apparatus 10 in the two-dimensional plane or the three-dimensional space is detected, the remote controller 20 transmits the detected position coordinate value information to the display terminal (S30). In this case, the remote controller 20 may transmit the position coordinate value information through radio waves such as infrared rays as in the general remote controller.

The position coordinate value information transmitted from the remote controller 20 is transmitted to the display controller 33 via the receiver 32 in the display terminal 30. When the display control unit 33 receives the position coordinate value information, the display control unit 33 displays the shape of the movement trajectory corresponding to the position coordinate value as it is on the display screen 34 (S40), or a character corresponding to the position coordinate value. The data storage unit 31 searches whether the information or the command signal is set (S50). When the position coordinate value is received, whether the shape of the movement trajectory corresponding thereto is displayed on the screen as it is or whether the character information or the command signal corresponding thereto are retrieved can be configured so that the user can select in advance.

For example, when the user generates the text information, if the user wants to display the text shape generated by the remote input device 10 as it is on the screen, the position coordinates without searching for the text information corresponding to the position coordinate value, The movement trace shape of the value is displayed on the screen as it is (S40). On the other hand, if the user wants to generate character information of a specific font, the character information corresponding to the received position coordinate value is searched in the data storage unit 31 (S50) to display the retrieved character on the display screen 34. Set it.

As described above, when character coordinates corresponding to the position coordinates are received and searched for when the character coordinates corresponding to the position coordinates are received, the character information is displayed. It outputs on the screen 34 (S60).

On the other hand, if a command signal corresponds to the position coordinate value as a result of the search, the command content corresponding to the command signal is executed and the result is output on the screen (S60).

The contents of the command signal may be variously set. For example, when the display terminal 30 is a television, the user can easily remotely control the television even in a dark place by using the remote input device 10 by setting matters regarding channel change or volume adjustment as a command signal. There will be. In addition, in the case of playing a computer game, by setting a command signal for the movement of the position of the game character on the screen in response to the movement of the remote input device 10, the input device may be remotely separated from the computer terminal. You will be able to enjoy realistic games.

As described above, according to an embodiment of the present invention, the movement of the remote input device is detected or the coordinate value is calculated by the remote controller, and the coordinate value information is transmitted and received between the existing remote controller and the display terminal. It can be transmitted from the remote control to the display terminal as it is. Therefore, even if the structure of the existing display terminal is not changed much, the display system of the present invention can be implemented, and since the remote controller is connected between the input device and the display terminal, the distance between the input device and the display terminal is relatively far apart. Even if present, the character information or command signal information can be easily input to the display terminal.

While specific embodiments of the present invention have been illustrated and described, the technical spirit of the present invention is not limited to the accompanying drawings and the above description, and various modifications can be made without departing from the spirit of the present invention. It will be apparent to those skilled in the art, and variations of this form will be regarded as belonging to the claims of the present invention without departing from the spirit of the present invention.

As described above, the display system according to the present invention may generate text information on the display terminal using a remote input device even when the display terminal is in a remote state. In addition, it is possible to execute a command by easily inputting a command signal to a display terminal using a remote input device even in a dark place.

Claims (12)

Receiving ultrasonic and infrared rays transmitted from the same remote input device through the ultrasonic sensor and the infrared sensor, respectively; Detecting a position coordinate value of a movement trajectory of the remote input device based on the received information of the ultrasonic wave and the infrared ray; Transmitting the detected position coordinate values to a terminal having a display screen; Searching for text information or a command signal corresponding to the position coordinate value; And And executing the searched text information or command signal on the display screen. The method of claim 1, wherein the detecting of the position coordinate value comprises: And arranging three or more ultrasonic sensors on the same plane, thereby detecting a position coordinate value of a movement trajectory on a three-dimensional space of the remote input device. The method of claim 1, wherein the ultrasonic sensor comprises first, second and third ultrasonic sensors, and the detecting of the position coordinate value comprises: Measuring the time when the infrared ray transmitted from the remote input device arrives at the infrared sensor and the time when the ultrasonic wave transmitted simultaneously with the infrared ray arrives at the first, second and third ultrasonic sensors, respectively, And calculating the respective distances to the first, second and third ultrasonic sensors. The method of claim 1, wherein the execution of the character information on the display screen, The method of using a remote input device in a display terminal, characterized in that for displaying on the screen in the shape of the movement trajectory of the position coordinates. The method of claim 1, wherein the execution of the character information on the display screen, And searching for a character corresponding to the movement trajectory of the position coordinates and displaying the character on the screen. The method of claim 1, wherein the execution of the command signal on the display screen, And displaying the result of processing the command content of the searched command signal on the screen. A remote input device for transmitting ultrasonic waves and infrared rays; A remote controller for receiving the ultrasonic waves and infrared rays and outputting position coordinate value information of the remote input device; And a display terminal configured to execute information corresponding to the position coordinate values output from the remote controller on a display screen. The method of claim 7, wherein the remote control, An ultrasonic sensor for receiving an ultrasonic wave transmitted from a remote input device; An infrared sensor for receiving infrared rays sent from the remote input device; A detector for detecting a position coordinate value of the remote input device by using information on a time difference between the ultrasonic waves and the infrared rays; And And a transmitter for transmitting the position coordinate value to a terminal having a display screen. The method of claim 8, And at least three ultrasonic sensors on the same plane to detect a position coordinate value of a movement trajectory in a three-dimensional space of the remote input device. The method of claim 7, wherein the terminal, A data storage unit for storing each position coordinate value and corresponding character information or command signal; A receiver which receives the position coordinate value information from the remote controller; And Information for displaying the shape of the movement trajectory corresponding to the received position coordinate value as it is on the display screen or retrieving text information or a command signal corresponding to the received position coordinate value from the data storage unit and executing it on the display screen. Display system using a remote input device comprising a processing unit. Receiving ultrasonic and infrared rays transmitted from the same remote input device through the ultrasonic sensor and the infrared sensor, respectively; Detecting a position coordinate value of a movement trajectory of the remote input device based on the received information of the ultrasonic wave and the infrared ray; And And transmitting the position coordinate value information to a terminal which stores display information corresponding to the position coordinate value information. A remote input device for transmitting ultrasonic waves and infrared rays; And It includes a remote control for receiving the ultrasonic wave and infrared rays transmitted from the remote input device at the same time and outputs the position coordinate value information on the movement trajectory of the remote input device, And the position coordinate value information is sent to a terminal storing display information corresponding to the position coordinate value information.

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