KR100969311B1 - Mobile device for extending display area - Google Patents

Abstract

The present invention relates to a portable terminal that can implement a large screen using a plurality of neighboring portable terminals without changing the size of the display device mounted on the portable terminal. To this end, the present invention provides a first communication module for receiving a video signal by performing wireless communication with a base station, a display device for reproducing the video signal, a second communication module for performing wireless communication with another neighboring mobile terminal, and a second. Request other mobile terminals to participate in divisional playback of the video signal through the communication module, identify other mobile terminals in response thereto, and divide the playback area of the video signal according to the number of mobile terminals participating in the divisional playback. And a control module for allocating the reproduction region information of the partitioned reproduction region to the mobile terminal participating in the division reproduction to perform the division reproduction of the video signal.

Play area information, split play, mobile terminal, video signal

Description

Mobile device for extending display area

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a divisional reproduction portable terminal, and more particularly, to a divisional reproduction portable terminal for forming one large reproduction area by using a display device provided in a plurality of adjacent portable terminals.

Cell phones, PDAs, PMPs, and other wireless terminals capable of wireless communication are small in size in order to maximize portability, and the display device mounted in these portable terminals also has a minimum size for portability. In the case of a mobile phone, a 1.8-inch to 3-inch LCD is mainly used as a display device, and even in the case of a PDA, its size is difficult to exceed 4 inches. Meanwhile, movie transmission, music transmission, and various other multimedia services are in progress or are going on, using a wireless communication function provided in a portable terminal. In order to use these multimedia services,

-The data transmission speed of the mobile terminal should be increased than before.

-The reproducibility of the display device mounted on the portable terminal should be supported.

Here, the data transmission rate can be solved by improving the communication method between the mobile terminal and the base station. Currently, the Bluetooth communication method with a transmission speed of 500 to 700kb / s is expected to be increased to a transmission speed of 10Mbps / s soon, and the data transmission speed between the base station and the mobile terminal will increase significantly with the birth of the 3G phone.

However, unlike the increase in the data transmission speed, the size of the display device mounted on the portable terminal has not changed much from the past. This is to meet the inherent purpose of the portable terminal, that is, to maintain the size and weight that the user is easy to carry. Accordingly, no matter what type of multimedia service is currently provided, the result of reproducing multimedia data (for example, a video signal) is always displayed on a display device of 1.8 inches to 3 inches. Accordingly, the present applicant is to propose a divided reproduction portable terminal for implementing a large screen using a portable terminal without increasing the size of a display device mounted on the portable terminal, and a method of implementing a divided reproduction using the same.

As described above, it is an object of the present invention to provide a divisional reproduction portable terminal that implements a large screen in a combination of portable terminals without increasing the size of the display device mounted in the portable terminal.

Another object of the present invention is to provide a divisional reproduction portable terminal which reproduces an audio signal in multiple channels among multimedia data provided from a base station using a plurality of neighboring portable terminals.

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According to the present invention, a first communication module for receiving an image signal by performing wireless communication with a base station, a display device for reproducing the image signal, and a second communication for performing wireless communication with another neighboring mobile terminal. Requesting the other mobile terminal to participate in divisional reproduction of the video signal through the module and the second communication module, and grasping the other mobile terminal in response thereto, and participating in the divisional reproduction of the video signal. It is achieved by a control module which divides according to the number of portable terminals and allocates reproduction region information for each divided reproduction region to a portable terminal participating in the division reproduction to perform division reproduction for the video signal.

According to the present invention, the above object is performed by a mobile terminal having a first communication module for performing wireless communication with a base station, and a second communication module for performing wireless communication with at least one other neighboring mobile terminal, Requesting divisional reproduction from the at least one other mobile terminal using the second communication module, and identifying another mobile terminal having a positive response thereto, receiving a video signal from the base station through the first communication module; Partitioning the data according to the number of other portable terminals responding to the multi-play, generating reproduction region information defining the partitioned region, and reproducing the second portable terminal through the second communication module. By providing the area information.

According to the present invention, the object of the present invention is to perform a wireless communication with a base station and receive a video signal from the base station, a second communication module for performing wireless communication with another neighboring mobile terminal, and the second communication Requesting the other mobile terminal to participate in the divisional reproduction of the video signal through the module, grasp the other mobile terminal in response thereto, and a plurality of the video signals according to the number of other mobile terminals participating in the divisional reproduction. And a control module for transmitting each video signal partitioned through the second communication module to the other mobile terminal.

As described above, the present invention can implement a large screen using a plurality of neighboring portable terminals without changing the size of the display device mounted in the portable terminal.

In addition, the present invention enables multi-channel audio reproduction by multiple reproduction of the audio signal reproduced in the portable terminal.

In addition, the present invention can implement a large screen at a low cost by receiving a video signal transmitted from the base station by one mobile terminal, by dividing it into a plurality of mobile terminals and providing and reproducing it to another neighboring mobile terminal.

The present invention uses display devices of mobile phones, PDAs, PMPs, and other wireless communication devices for reproducing a single video signal, thereby realizing a large screen even through a mobile device having a small display device. In addition, the present invention provides one channel to each speaker provided in the portable terminal and can implement a multi-channel (for example, 5.1 channel) using the same.

Accordingly, the portable terminal according to the present invention uses a short range wireless communication module such as Bluetooth, and allocates a playback area to each portable terminal constituting the large screen. Preferably, the allocation of the playback area is performed by a main mobile terminal that receives a video signal from a base station. The main mobile terminal notifies the neighboring mobile terminal of the playback area, and the other mobile terminal is configured by the main mobile terminal. Play the video signal accordingly. here,

1) a method in which a main portable terminal and another portable terminal receive the same video signal at a base station, and the main portable terminal sets a reproduction area to build a large screen; and

2) A method in which only a main mobile terminal receives a video signal from a base station, and divides the video signal in a main portable terminal according to the number of other portable terminals and provides the partitioned video signal to another portable terminal. In this case, the main portable terminal preferably transmits a video signal to another portable terminal using short range wireless communication such as Bluetooth.

Meanwhile, in the present invention, the other portable terminal may be one or more. If the number of other portable terminals joining the main portable terminal to form a large screen is three, the size of the large screen is twice as wide and vertical as compared to the playback area of the display device on the main portable terminal.

Here, it is preferable that the other portable terminal is odd, such as one, three, five. This is due to the characteristic of the display device having a rectangular shape, when the sum of the display device provided in the main portable terminal and the other portable terminal is an even number, it is due to the realization of the large screen in the most acceptable form.

In the present invention, when two mobile terminals participate in divisional reproduction, one video signal is divided into two as shown in FIG. 7, and any one of the two mobile terminals participating in unrighteous reproduction is the left image of FIG. 7. A signal is reproduced, and divisional reproduction is performed in such a manner that the other reproduces the video signal on the right. Therefore, when two mobile terminals participate in the divisional reproduction, the two mobile terminals are preferably located adjacent to each other.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a portable terminal according to an embodiment of the present invention.

The illustrated mobile terminal includes an RF unit 110, a modem 160, a control module 120, a Bluetooth module 130, a display device 140, a keypad 150, and a codec 170.

The RF unit 110 is controlled by the control module 120, and performs communication with the base station for signals and voice.

The modem 160 demodulates a signal received through the RF unit 110, and modulates a signal transmitted to the base station through the RF unit 110.

The codec 170 processes packet data and voice signals. The codec 170 converts the voice signal into a digital signal when the voice signal is received through the microphone (not shown) provided in the mobile terminal 100. On the contrary, when the coded voice signal is received through the modem 160, the codec 170 receives the voice signal. Decode to generate analog voice signal. The generated analog voice signal is reproduced through a speaker (not shown) or output through a separate playback device (eg, earphone) connected to the mobile terminal 100. Here, the codec 170 is generally formed separately from the control module 120, but may be integrally formed in the control module 120.

The Bluetooth module 130 is driven by the control module 120 in response to a user of the mobile terminal 100 operating the keypad 150. The Bluetooth module 130 inquires about participation in the divisional reproduction by another mobile terminal existing within a radius of several to several tens of meters. In this case, the other mobile terminal (for example, reference numeral 200) should have a Bluetooth module (for example, reference numeral 230) for performing wireless communication with the Bluetooth module 130. The Bluetooth module 130 inquires of the other mobile terminal 200 whether to implement a large screen through the split playback, and notifies the control module 120 of the response when the other mobile terminal 200 responds.

When the video signal is received through the RF unit 110 and the modem 160, the control module 120 partitions the play area of the video signal according to the number of other mobile terminals participating in the large screen to generate play area information.

The reproduction area information refers to information obtained by dividing the resolution of each mobile terminal (eg, reference numerals 100 and 200) evenly according to the number of mobile terminals participating in the large screen implementation. For example, if the resolutions of the portable terminals 100 and 200 are "320 X 160" and two portable terminals 100 and 200 are used to implement a large screen, the portable terminal 100 is notified to another portable terminal 200. The reproduction area information may be [320, (81 to 160)] as shown in FIG. 2, or [(161 to 320), 160] shown in FIG. At this time, the reproduction region information allocated to the mobile terminal 100 becomes [(0-160), 160]. The reproduction region information shown in FIG. 3 may be applied when the portable terminal 100 reproduces the "A" region and the portable terminal 200 reproduces the "B" region.

The keypad 150 is used when a user inputs various control commands to the mobile terminal 100 or enters a dial number for a telephone call.

The display device 140 displays an image signal corresponding to the reproduction area information allocated by the control module 120. In addition, the display apparatus 140 may refer to the number of other portable terminals (for example, reference numeral 200) in which the user of the portable terminal 100 participates in divisional reproduction, as well as the user's own portable terminal 100 and other portable terminals ( 200, an interface for allocating a reproduction area is displayed. In this case, the function of displaying the interface on the display device 140 is performed by the positioning module 123 attached to the control module 120.

The control module 120 controls the portable terminal 100 as a whole, and when the user wants to implement a large screen by using the portable terminal 100, the other portable terminal is located at a short distance by controlling the Bluetooth module 130 ( For example, reference numeral 200 requests participation in divisional reproduction. The control module 120 determines the number of other portable terminals and other portable terminals participating in the divisional reproduction through the Bluetooth module 130, and then receives the image signals received through the RF unit 110 and the modem 160. The reproduction area information is generated by partitioning. The division of the video signal follows the scheme described with reference to FIGS. 2 and 3.

After generating the play area information by dividing the video signal into a predetermined number, the control module 120 transmits the play area information to the other mobile terminal through the Bluetooth module 130. As shown in FIG. 5, the reproduction region information may be allocated to a reproduction region (1 to 4) in the portable terminals 200a to 200d, each of which includes the Bluetooth modules 230a to 230d.

Preferably, the control module 120 includes a reproduction region setting unit 121, a scaler 122, and a positioning module (! 23).

The reproduction region setting unit 121 generates reproduction region information according to the number of other portable terminals participating in the implementation of the large screen, and the scaler 122 adjusts the size of the image signal to be reproduced in the display device of the portable terminal 100.

The scaler 122 enlarges or reduces the reproduction area allocated to the mobile terminal 100 with reference to the reproduction area information.

For example, as shown in FIG. 5, four portable terminals 200a to 200d participate in divisional reproduction to implement a large screen, and the resolution of the video signal transmitted from the base station is 320 × 160, and each portable terminal 200a is represented. Assuming that the resolution of the display device mounted at ~ 200d) is 320 to 160, each of the mobile terminals 200a to 200d should enlarge 1/4 of the video signal transmitted from the base station to the resolution of 320 X 160. At this time, the scaler 122 enlarges the 1/4 playback area allocated to the mobile terminal 200a to a full scale 320 × 160. Of course, the other portable terminals 200b to 200d participating in the divisional reproduction also need to enlarge the 1/4 reproduction area at full scale.

Meanwhile, as shown in FIG. 1, two portable terminals 100 and 200 participate in divisional reproduction, and display devices 140 and 240 of the respective portable terminals 100 and 200 are respectively shown in FIG. 3. In the case of performing divisional reproduction in the form, the scaler 122 converts the reproduction region of the video signal to the region to be reproduced by the mobile terminal 100. At this time, the scaler 122 converts the region A of FIG. 3 to a resolution of 320 × 160, and a part of the reproduction region of the image signal is cut off by the display apparatuses 140 and 240 by scaling and reproduced by the display apparatus 140. It may not be. Of course, the function of the scaler 222 on the side of the portable terminal 200 which receives the reproduction region information from the portable terminal 100 is also the same as the scaler 121.

The positioning module 123 may be configured to determine which other mobile terminal participates in the divisional reproduction by allowing the user of the mobile terminal 100 to participate in the divisional reproduction by referring to the presence and the number of other portable terminals participating in the divisional reproduction (eg, reference numeral 200). The interface determining whether to arrange the area is displayed on the display device 140. An interface displayed by the positioning module 123 to the display device 140 will be described with reference to FIG. 8.

Here, the description of the components of the mobile terminal 200 described in FIG. 1 is not described separately. This is due to the fact that each component 210 to 270 of the mobile terminal 200 shown in FIG. 1 is the same as the component 110 170 of the mobile terminal 100. The reason for this is that in the short range communication using the Bluetooth module, any one of the portable terminals functions as a main and the other portable terminals serve as a sub. The configuration and function of the two mobile terminals 100 and 200 are the same. Hereinafter, the description of the functions of the portable terminal, which receives reproduction region information from the main portable terminal or receives the divided video signal through the main portable terminal, will be omitted.

4 is a block diagram of a portable terminal according to another embodiment of the present invention.

The illustrated mobile terminal includes an RF module 110, a modem 160, a codec 170, a control module 120, a keypad 150, and a Bluetooth module 130. In this embodiment, the functions of the RF module 110, the modem 160, the keypad 150, and the display device 140 are the same as those described with reference to FIG. 1. However, in this embodiment,

When the video signal is transmitted from the base station to the mobile terminal 100, the mobile terminal 100 divides the video signal into a plurality of video signals to generate a video signal for each, and the other mobile terminal (200a to 200c) to participate in the divisional reproduction To have a difference. The control module 120 enlarges the first video signal of the plurality of video signals (the first video signal to the fourth video signal) divided into two vertically and horizontally so that the display device 140 reproduces the first video signal, and the remaining video signal ( The second video signal, the third video signal, and the fourth video signal) are transmitted to the other mobile terminals 200a to 200c through the Bluetooth module 130. In this case, the other mobile terminals 200a to 200c should include Bluetooth modules 230a to 230c for performing short range wireless communication with the Bluetooth module 130. Here, the roles of the control module 120 and the reproduction region setting unit 121, the scaler 122, and the positioning module 123 constituting the control module 120 are the same as those described with reference to FIG. 1. Do.

6 conceptually illustrates a method of reproducing audio in multiple channels according to an embodiment of the present invention.

In the illustrated multi-channel reproduction method, any one of the plurality of portable terminals 200a to 200e capable of Bluetooth communication functions as a main portable terminal (for example, reference numeral 200a), and another portable terminal (for example, reference numerals 200b to 200e). ) Serves as a sub portable terminal, and the main portable terminal 200a separates an audio signal into five channels, and then transmits the audio signal to each of the sub portable terminals 200a to 200e to implement multichannel audio reproduction. Each of the auxiliary mobile terminals 200b to 200e reproduces an audio signal for each channel transmitted from the main portable terminal 200a and may be arranged in the form of concentric circles around the listening area.

To this end, the main portable terminal 200a should be provided with a function or program for reproducing a sound source file provided in an internal memory (not shown), a sound source transmitted in the form of a file, or streaming from a base station in multiple channels.

8 illustrates an example of an interface displayed by the control module 120 on the display device 140 in the embodiment shown in FIG. 1.

The illustrated interface is displayed on the display device 140 by the control module 120 generating reproduction region information for the video signal. This type of interface is preferably implemented in the form of a control program driven by the control module 120. The illustrated interface is displayed on the display device 140 when the four portable terminals participate in the divisional reproduction. A user of the main portable terminal generating the reproduction region information among the four portable terminals can allocate the reproduction region to the other portable terminals. To help.

The display device 140 displays areas corresponding to 1 to 4 and indicates that the phone numbers of the mobile terminals participating in the divisional reproduction are assigned to each reproduction area through Bluetooth communication. The figure shows that the user allocates the playback area ② to the phone number corresponding to 011-XXXX-XXXX.

Meanwhile, the interface illustrated in FIG. 8 may be equally applied to the multichannel reproduction method described with reference to FIG. 6. When the interface shown in FIG. 8 is applied to the multi-channel reproducing method described with reference to FIG. 6, the reproduction areas corresponding to 1 to ④ have respective mobile terminals (centered on the middle (listening area) as shown in FIG. 6). Only the difference of displaying the positions corresponding to 200a to 200e in a circle (or square) exists, and the method of allocating the phone numbers of other mobile terminals participating in the multi-channel reproduction to each area is the same.

As described above, the present invention overcomes the inherent limitations of the portable terminal, that is, the limitation of mounting only a small display device according to size and weight limitations, and enables users located at a short distance to have a single large screen, or Enable channel audio playback.

1 is a block diagram of a portable terminal according to an embodiment of the present invention.

2 and 3 are diagrams for conceptually explaining playback region information;

Figure 4 is a block diagram of a portable terminal according to another embodiment of the present invention

5 is a diagram illustrating an example of allocating a play area;

6 conceptually illustrates a method of reproducing audio in multiple channels according to an embodiment of the present invention;

7 is a diagram illustrating an example in which divided playback is implemented by two portable terminals; and

FIG. 8 illustrates an example of an interface displayed by the control module to the display device in the embodiment illustrated in FIG. 1.

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

110: RF module 120: control module

121: playback area setting unit 122: scaler

123: positioning module 130: Bluetooth module

140: display device 150: keypad

160: modem 170: codec

Claims (12)

A first communication module performing wireless communication with a base station to receive an image signal; A display device for reproducing the video signal; A second communication module performing wireless communication with another neighboring mobile terminal; And Requesting the other portable terminal to participate in divisional reproduction of the video signal through the second communication module, and grasping the other portable terminal in response thereto; Partitioning of the video signal by dividing the reproduction region of the video signal according to the number of portable terminals participating in the divisional reproduction, and allocating reproduction region information of each partitioned reproduction region to the mobile terminal participating in the divisional reproduction It includes; control module for performing the regeneration, The control module, And a positioning module for allocating the playback area to the other mobile terminal. The positioning module, An interface for allocating the partitioned playback area to the other portable terminal is displayed on the display device; The interface is, And assigning the reproduction region to the other portable terminal by associating the phone number of the other portable terminal with the partitioned reproduction region. The method of claim 1, The control module, A reproduction region setting module for partitioning a reproduction region of the video signal according to the number of other portable terminals participating in the division reproduction; And And a scaler for converting a region to be reproduced with respect to the video signal according to the resolution of the display apparatus according to the reproduction region information. delete delete The method of claim 1, The video signal, And the base station is provided to the other portable terminal. The method of claim 1, The second communication module, A split reproducing mobile terminal, characterized in that the Bluetooth communication module. delete delete delete delete delete delete

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