KR100641440B1 - Mobile device offering function of remote control - Google Patents

Abstract

The present invention relates to a mobile communication terminal performing near field communication with a DMB receiving apparatus such as a digital TV and using a touch screen and a keypad together to provide a remote control function. A first wireless communication unit performing wireless communication; A driving unit for recognizing the DMB receiving apparatus, establishing a data link with the DMB receiving apparatus, and receiving device information of the DMB receiving apparatus through a first wireless communication unit when a driving start signal is input; A data input unit including a touch screen, receiving device information of the DMB receiving device from the driving unit, generating coordinate information synchronized with the touch screen, and receiving pointer information on the touch screen; And a data transmission and reception unit which receives pointer information from the data input unit, attaches identification information, and transmits the pointer information to the DMB receiving apparatus through the first wireless communication unit.

According to the present invention, by using a touch screen, a keypad and a short range wireless communication device of a general mobile communication terminal, a remote control function is added in software so that a DMB service can be easily used without a separate wireless mouse and a wireless keyboard. It works.

Description

Mobile terminal providing a remote control function {Mobile device offering function of remote control}

1 is a block diagram schematically showing the internal configuration of a mobile communication terminal providing a remote control function according to the present invention.

2 is a diagram illustrating a screen provided by a mobile communication terminal providing a remote control function according to the present invention.

3 is a diagram illustrating a data string of identification information attached to the pointer information or character information according to the present invention;

4 is a block diagram schematically showing an internal configuration of a digital TV to which a mobile communication terminal providing a remote control function according to the present invention is applied;

5 is a flowchart illustrating a method of operating a mobile communication terminal providing a remote control function according to the present invention.

6 is a flowchart illustrating a method of operating a digital TV for performing short-range wireless communication with a mobile communication terminal providing a remote control function according to the present invention.

<Explanation of symbols for main parts of drawing>

100: mobile communication terminal 110: drive interface

120: drive unit 130: first wireless communication unit

140: keypad 150: touch screen

160: data input unit 170: data transmission and reception unit

200: digital TV 210: HID section

220: information recognition unit 230: second wireless communication unit

240: processor 250: link setting unit

The present invention relates to a mobile communication terminal for providing a remote control function by performing a near field communication with a digital multimedia broadcasting (DMB) receiving apparatus.

In the real world, mobile communication terminals such as mobile phones, smart phones, and personal digital assistants (PDAs) are recognized as essential living devices, and their use ranges are gradually increasing.

For example, a user can use services such as wireless internet, schedule management, mobile game, music player, camera shooting, video player, etc. in addition to basic communication services through a mobile communication terminal. I'm doing it.

The mobile communication terminal, which has been developed in various forms by adding various additional functions under the core functions, is becoming unified as a smartphone type product as its functions become more and more similar.

Therefore, the mobile communication terminal is expected to include a touch screen type high-definition large display, a high-pixel lens and camera module, a high-quality speaker, a large memory and a high speed processor.

In addition, digital multimedia broadcasting (DMB) is in the spotlight, and digital multimedia broadcasting refers to advanced broadcasting that encompasses radio (audio) broadcasting, TV broadcasting, and mobile communication data, and DMB stands for terrestrial and satellite waves. In addition, since the broadcast signal is transmitted as digital data using all the radio frequency bands, the scope of application is very wide, ranging from mobile broadcasting to portable broadcasting to personal broadcasting, and the development of contents is extensive.

DMB is classified into terrestrial DMB and satellite DMB according to technical standard and network configuration. Terrestrial DMB is based on Orthogonal Frequency Division Multiplex (OFDM), and satellite DMB is code division multiplex (CDM). It uses the same principle as mobile communication technology.

In case of digital multimedia broadcasting receiving terminal using terrestrial wave (VHF), 6Mhz is divided into three frequency blocks and multiplexed. Each bandwidth is 1.2Mbps, and video compression technology is used for one channel. It can carry multiple video, audio and data channels. The technologies used at this time include H.264 (video standard, which can implement a reception quality corresponding to an analog video tape with a bandwidth of 384 Kbps), and MPEG-4BSAC (audio standard). In addition, a satellite digital multimedia broadcasting receiver using ultra high frequency (UHF) uses a band of 2.630 to 2.655 GHz, and the satellite serves as a repeater.

The DMB transmits and receives audio, text, and video as digital signals, and thus has high quality video, high sound quality, inter-activeness, and multi-channelization. In particular, unlike the conventional analog method in which a broadcaster must watch a program transmitted unilaterally, DMB can be viewed as a feature of bidirectionality in which a viewer can watch a desired program regardless of time. For example, a viewer may rewind or temporarily stop a program that is on air.

A representative example of the above-described DMB receiver is digital TV. For example, digital TV is similar to the Internet-based PC through bidirectional, wide-area, and digitalization. Therefore, high-definition and high-quality internet surfing is expected to be common. to be.

However, until now, the development of a remote controller that is compatible with such a digital TV is incomplete, and even an improved type of remote controller has not escaped the button-type data input method.

In order to solve this problem, an approach to implement a function of a remote control by applying a function of a general mobile communication terminal has been proposed. For reference, Korean Patent Application No. As described in 10-1999-001182 and the like, a remote control using a touch screen, a PDA with a remote control, and the like have been proposed, but these conventional improvements are for a simple remote control function and are insufficient for the interactive operation required for Internet search or complicated menu input. Is showing. Therefore, these improvements are not suitable for remote control for next generation digital TV.

Therefore, in implementing essential human input device (HID) functions such as a mouse and keyboard used in a conventional computer on a digital TV, a variety of accessories including a touch screen without the need to assemble expensive accessory devices to implement a new interface equipment There is a demand for a method for implementing a remote control function on a mobile communication terminal having a.

SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile communication terminal which provides a remote control function for easily operating data according to its bidirectional characteristic by operating like a mouse in synchronization with a screen of a receiving device.

In addition, the present invention is a remote control function for inputting a character using a touch screen and the character (pointer) information input through the touch screen and the identification information for differentiation are given to each other so that the character and the pointer movement information can function together. Another object is to provide a mobile communication terminal that provides a.

Another object of the present invention is to provide a mobile communication terminal that provides a remote control function for efficiently transmitting the text information and the pointer information through short-range wireless communication such as Bluetooth.

In order to achieve the above object, a mobile communication terminal providing a remote control function according to the present invention includes a first wireless communication unit for performing short-range wireless communication with the DMB receiving apparatus; A driving unit for recognizing the DMB receiving apparatus, establishing a data link with the DMB receiving apparatus, and receiving device information of the DMB receiving apparatus through a first wireless communication unit when a driving start signal is input; A data input unit including a touch screen, receiving device information of the DMB receiving device from the driving unit, generating coordinate information synchronized with the touch screen, and receiving pointer information on the touch screen; And a data transmission and reception unit which receives pointer information from the data input unit, attaches identification information, and transmits the pointer information to the DMB receiving apparatus through the first wireless communication unit.

In addition, in order to achieve the above another object, the data input unit of the mobile communication terminal providing a remote control function according to the present invention includes a keypad, receives the character information through the keypad and transmits to the data transmission and reception unit, the data The transmitter and receiver attaches the identification information to the text information and transmits the identification information to the DMB receiving apparatus.

In addition, in order to achieve the above another object, the DBM receiving apparatus connected to the mobile communication terminal and the short-range wireless communication providing a remote control function according to the present invention is a second wireless communication unit performing a short-range wireless communication with the first wireless communication unit; Wireless communication unit; A link setting unit for setting a data link with the driving unit and transferring device information to the driving unit when a request signal of the driving unit is received from the second wireless communication unit; A HID unit for processing mouse information or keyboard information and delivering the same to a processor; And an information recognizing unit for classifying the pointer information into mouse information or classifying the character information into keyboard information and transmitting the pointer information or character information to the HID unit according to the identification information. It is done.

Hereinafter, a mobile communication terminal providing a remote control function according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing an internal configuration of a mobile communication terminal 100 providing a remote control function according to the present invention.

Referring to FIG. 1, a mobile communication terminal 100 providing a remote control function according to the present invention includes a first wireless communication unit 130, a driving unit 120, a data input unit 160, and a data transmission / reception unit 170. do.

First, the mobile communication terminal 100 according to the present invention performs a wireless communication with a DMB receiving apparatus and provides a remote control function to enable bidirectional operation on a digital multimedia broadcasting, wherein the DMB receiving apparatus is a multimedia PC (Personal). Computer), digital TV and the like can be used. In describing the embodiment of the present invention, it is assumed that the DMB receiving apparatus is a digital TV 200.

The first wireless communication unit 130 performs short-range wireless communication with the digital TV 200. The short-range wireless communication method includes Bluetooth, IrDA (Infrared Data Association), and PIAFS (PHS Internet Access Forum Standard). , Shared Wireless Access Protocol (SWAP), wireless LAN (IEEE802.11b), and the like.

However, IrDA has a difference in the corresponding angle due to the characteristics of infrared rays (that is, a communication device must be positioned on a straight line without obstacles to communicate with each other), the transmission speed is also slightly slow at the serial level, and is also affected by direct sunlight. It is preferable that Bluetooth be used in the embodiment of the present invention because of disadvantages.

Since the Bluetooth uses a high frequency band of 2.4 GHz, the corresponding angle is wide, and even when there is an obstacle or a little distance in transmission (about 10 m), data can be exchanged between devices. In addition, Bluetooth has a transmission speed of 720 Kbps to 10 Mbps, and up to 79 channels are available, so there is an advantage that several devices can be connected at once. The Bluetooth can be mounted on a microchip with a size of 9 x 9mm and consumes about 0.3mA in standby state and about 30mA in data exchange.

The mobile communication terminal 100 according to the present invention includes a drive interface (I / F) 110 for providing a remote control function or switching to another use during the remote control function, wherein the driving unit 120 is provided on the keypad 140. A driving start button and a driving stop button may be provided to receive each signal. Such an interface may be implemented in various ways. For example, the interface may be implemented as one button on the keypad 140 or may be implemented in a menu.

When the driving start signal (a signal for using the mobile communication terminal according to the present invention as a remote controller) is input through the driving interface 110, the driving unit 120 receives the digital TV through the first wireless communication unit 130. 200). As described above, the mobile communication terminal 100 according to the present invention implemented using Bluetooth may be connected to a plurality of receiving apparatuses and should recognize the receiving apparatuses in order to exchange data.

Subsequently, the driver 120 establishes a data link with the digital TV 200 and receives device information such as screen information from the digital TV 200.

The digital TV 200 should have devices corresponding thereto for communication with the mobile communication terminal 100 providing a remote control function according to the present invention, which will be described below with reference to FIG. 4.

When the user inputs a driving stop signal to use the mobile communication terminal 100 according to the present invention for other purposes, the driving unit 120 terminates the data link with the DMB receiving apparatus.

The data input unit 160 includes a touch screen 150 and a keypad 140. The touch screen 150 provides a kind of mouse function and text input function such as menu selection on the digital TV 200. The keypad 140 is for providing a text input function such as mail transmission.

At present, since most of the touch screen 150 and the keypad 140 are commercially available in a mobile communication terminal such as a smartphone product, the mobile communication terminal 100 according to the present invention can be easily implemented in software.

Therefore, the mobile communication terminal 100 according to the present invention is able to function as a HID (Human Interface Device) for the digital TV 200, whose function is gradually diversified beyond the simple remote control function.

The touch screen 150 is a computer display screen that reacts as its surface is touched, and includes a resistive touch screen, a surface wave touch screen, and a capacitive touch screen. The touch screen detects a change in the resistance, surface wave, or capacitance, and converts the contacted position in the entire screen into a coordinate value.

2 is a diagram illustrating a screen provided by the mobile communication terminal 100 providing a remote control function according to the present invention.

Referring to FIG. 2, the data input unit 160 divides the touch screen 150 to provide an area B for receiving the text information and an area A for receiving information interpreted as a mouse event. can see. In addition, the area B for receiving the text information may be displayed together with the text input through the keypad 140.

The data input unit 160 receives screen information of the digital TV 200 from the driving unit 120 to generate coordinate information synchronized with the touch screen 150, and coordinate values through the touch screen 150. If (C) is input, the coordinate value is reconstructed on the synchronized coordinate information. When the coordinate value C is reconstructed (hereinafter, the reconstructed coordinate value is referred to as "pointer information"), the data input unit 160 transmits it to the data transmission / reception unit 170.

In addition, the data input unit 160 recognizes the character information written in the character input area (B) of the touch screen and transfers it to the data transmitter 170, and receives the character information through the keypad 140 Display (D) on the character display area.

The data transmitter / receiver 170 receives pointer information or text information from the data inputter 160, attaches identification information, and transmits the identification information to the DMB receiving apparatus through the first wireless communication unit 130.

3 is a diagram illustrating a data string of identification information attached to the pointer information or character information according to the present invention.

The identification information (E, F) is information for determining whether the received information is pointer information or character information when the digital TV 200 receives the information. Referring to FIG. And located at the transpositions E and F of the data string of the pointer information C or the character information D. FIG.

In order to exchange data with each other in the mobile communication terminal according to the present invention, the counterpart DBM receiving apparatus (digital TV) should have a corresponding short-range wireless communication equipment, which will be described in detail below. .

4 is a block diagram schematically showing an internal configuration of a digital TV 200 to which a mobile communication terminal providing a remote control function according to the present invention is applied.

1 and 4, the digital TV 200 includes a processor 240, a second wireless communication unit 230, a link setting unit 250, a HID unit 210, and an information recognition unit 220. It is composed.

The second wireless communication unit 230 performs short-range wireless communication with the mobile communication terminal 100. As described above, the second wireless communication unit 230 performs wireless communication using a Bluetooth scheme.

The link setting unit 250 sets a data link with the driver 120 when the connection request signal is received from the driver 120 of the mobile communication terminal through the second wireless communication unit 230, and the driver 120. ) Transmits device information including screen information.

When the pointer information or the character information is received from the link setting unit 250, the information recognition unit 220 analyzes the identification information and classifies the pointer information into mouse information according to an analysis result, or the character information into keyboard information. Classify as

The information recognizing unit 220 transmits the classified pointer information and text information to the HID unit 210 so that they can be processed as a mouse event and a keyboard event, respectively.

The HID unit 210 is a component unit configured to transfer the manipulation data from the outside to the data that can be processed by the processor 240, and processes the mouse event or the keyboard event to the processor 240. To pass.

Accordingly, the processor 240 may provide an interactive digital multimedia broadcasting service through the pointer movement information and input text.

Hereinafter, a method for operating short-range wireless communication of a mobile communication terminal and a digital TV 200 providing a remote control function according to the present invention will be described.

5 is a flowchart illustrating a method of operating a mobile communication terminal providing a remote control function according to the present invention.

First, when a driving start signal is input through the driving interface 110 (S100), the driving unit 120 inquires the digital TV 200 through the first wireless communication unit 130 (S105).

The driver 120 recognizes the digital TV 200 and establishes a data link (S110), and receives screen information from the digital TV 200 (S115).

Subsequently, the data input unit 160 receives screen information of the digital TV 200 from the driver 120 and generates coordinate information synchronized with the touch screen 150. That is, the data input unit 160 sets the screen magnification of the touch screen 150 in accordance with the screen magnification of the digital TV 200 (S120).

When a user manipulates the touch screen 150 to input a coordinate value (S125), the data input unit 160 reconstructs pointer information on the synchronized coordinate information (S130). When the pointer information is reconstructed, the data input unit 160 transfers it to the data transmission and reception unit 170 (S140).

On the other hand, when a user inputs a character by operating the touch screen 150 (S125), the data input unit 160 processes the data input unit 160 as text information and displays it on the text display area (S135). The data transmitter 170 transmits the data to the data transmitter 170 (S140).

Finally, when the information is received from the data input unit 160, the data transmission and reception unit 170 attaches the identification information to the pointer information or the text information (S145), and through the wireless communication unit via the digital TV ( 200) (S150).

6 is a flowchart illustrating a method of operating the digital TV 200 to perform short-range wireless communication with a mobile communication terminal providing a remote control function according to the present invention.

First, when data is transmitted in a Bluetooth manner, the second wireless communication unit 230 receives it (S200), and the information recognizing unit 220 reads the received data and analyzes identification information (S205).

When the identification information means the pointer information (S210), the HID unit 210 processes this as a mouse event (S215) and transmits it to the processor 240 (S225).

However, if the identification information means that the character information (S210), the HID unit 210 processes it as a keyboard event (S220) and delivers it to the processor 240 (S225).

When the mouse event or the keyboard event is transmitted from the HID unit 210, the processor 240 calculates this and applies it to the digital multimedia broadcasting service (S230).

The present invention has been described above with reference to the preferred embodiments, which are merely examples and are not intended to limit the present invention, and those skilled in the art to which the present invention pertains do not depart from the essential characteristics of the present invention. It will be appreciated that various modifications and applications are not possible that are not illustrated above. For example, each component specifically shown in the embodiment of the present invention can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

As described above, according to the mobile communication terminal providing a remote control function according to the present invention, a separate wireless by adding a remote control function in software using a touch screen, a keypad and a short range wireless communication device of the general mobile communication terminal. There is an effect that can easily use the DMB service without the need for a mouse, a wireless keyboard.

In addition, according to the present invention, the user can comfortably watch digital TV and surf the Internet by operating the touch screen and keypad of the mobile communication terminal connected to the digital TV wirelessly in a small size at the same time as the computer mouse and keyboard. You can enjoy the effect.

Claims (9)

A first wireless communication unit performing near field communication with the DMB receiving apparatus; A driving unit for recognizing the DMB receiving apparatus, establishing a data link with the DMB receiving apparatus, and receiving device information of the DMB receiving apparatus through a first wireless communication unit when a driving start signal is input; A data input unit including a touch screen, receiving device information of the DMB receiving device from the driving unit, generating coordinate information synchronized with the touch screen, and receiving pointer information on the touch screen; And Receiving the pointer information from the data input unit attached to the identification information, and a mobile communication terminal providing a remote control function comprising a data transmission and reception unit for transmitting the pointer information to the DMB receiving device through the first wireless communication unit. . The method of claim 1, The data input unit receives a character on the touch screen, And the data transmission and reception unit attaches identification information to text information input from the data input unit, and transmits the identification information to the DMB receiving apparatus through the first wireless communication unit. The method of claim 2, wherein the data input unit And a text input area divided into a touch screen for receiving the pointer information and receiving the text information. The method of claim 2, wherein the driving unit And a driving stop signal is inputted to terminate the data link with the DMB receiving apparatus. The method of claim 1, The data input unit includes a keypad, receives text information through the keypad, and transmits the received text information to the data transmitter and receiver. And the data transmission / reception unit attaches identification information to the text information and transmits the identification information to the DMB receiving apparatus. The method of claim 1, 2 or 5, wherein the pointer identification information or character identification information is A mobile communication terminal providing a remote control function as an 8-bit signal, appended to the data string of the pointer information or the character information. The method of claim 1, wherein the first wireless communication unit A mobile communication terminal providing a remote control function, characterized in that to perform short-range wireless communication with the DMB receiving apparatus using any one of Bluetooth, RF communication, wireless LAN or infrared communication. The method of claim 1, wherein the DMB receiving apparatus A mobile communication terminal providing a remote control function, characterized in that the digital image device for displaying the DMB data on the screen. The method of claim 1, wherein the DMB receiving apparatus A second wireless communication unit performing near field communication with the first wireless communication unit; A link setting unit for setting a data link with the driving unit and transferring device information to the driving unit when a request signal of the driving unit is received from the second wireless communication unit; A HID unit that processes a mouse event or a keyboard event and delivers the same to a processor; And When the pointer information or character information is received from the data setting unit, the pointer information is classified into mouse information or the character information is classified into keyboard information according to the identification information, and includes an information recognizing unit for transferring to the HID unit. Mobile communication terminal providing a remote control function.

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