Abstract:
The present invention relates to a wireless image transmission and reception system having a plurality of transmission devices ( 100 ) and a reception device ( 200 ), wherein the transmission device ( 100 ) includes: a transmission button ( 110 ) being turned on for transmitting the image data of the connected terminal ( 10 ) and the identifier of the transmission device ( 100 ); and an image transmission part ( 120 ) for transmitting wirelessly the image data and the identifier, and the reception device ( 200 ) includes: an image reception part ( 210 ) for receiving wirelessly the image data and the identifier; and an identifier registration module ( 220 ) for registering the identifier of the transmission device ( 100 ), thereby outputting the image data to a display device ( 20 ).

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to and the benefit of Korean Patent Application No. 2013-0017944, filed on 20 Feb. 2013, the disclosure of which is incorporated herein by reference in its entirety. 
     BACKGROUND 
     1. Field of the Invention 
     The present invention relates to a wireless image transmission and reception system which allows participants to immediately transmit data images stored in their note books or smart pads to a PC or a display device for presentation according to their own intentions, and thus allows the participants to immediately share their opinions. 
     The present invention relates to a wireless image transmission and reception system including a plurality of transmission devices ( 100 ) and a reception device ( 200 ), wherein each of the transmission devices ( 100 ) includes a transmission button ( 110 ) turned on so as to transmit image data of a connected terminal ( 10 ) and an identifier of the transmission device ( 100 ); and an image transmission part ( 120 ) configured to wirelessly transmit the image data and the identifier, and the reception device ( 200 ) includes an image reception part ( 210 ) configured to receive wirelessly the image data and the identifier; and an identifier registration module ( 220 ) configured to register the identifier of the transmission device ( 100 ), thereby outputting the image data to a display device ( 20 ). 
     2. Discussion of Related Art 
     Recently, as smart pads are popularized, participants in an office meeting, a seminar, a conference or the like generally carry notebooks or smart pads. 
     Furthermore, it is expected that students will take a class with educational pads in the near future. 
     However, in a current meeting process, a presenter connects an USB memory storing presentation materials to a PC for presentation, or previously stores the presentation materials in the PC for presentation, and then makes presentations, while displaying the presentation materials on a screen connected to the PC for presentation. 
     Therefore, participants in the meeting may only watch the presentation materials provided in advance using their own notebooks or smart pads, and may not immediately share other materials in the meeting. 
     In other words, in order for the participants to share their own materials in the meeting, seminar, conference and class, the corresponding participant should stop the proceedings, transfer the materials to the PC for presentation, and advance his/her opinion around the PC for presentation. Since these processes are very inconvenient, and also a time interval occurs in the meeting, this is practically impossible. 
     Therefore, in order to allow the participants to share creative opinions, a wireless image transmission and reception system through which the participants may immediately transfer data images stored in their own notebooks or smart pads to the PC for presentation and thus may provide the opinions is required. 
     Also, in order to allow a second participant to immediately transfer his/her own data image and provide another opinion, while a first participant transfers his/her own data image and provides an opinion, a wireless image transmission and reception system which may process an image transmitting and receiving operation in real time is required. 
     Also, a wireless image transmission and reception system including a transmission device and a reception device which may be detachably installed at a notebook or a smart pad, and a PC or a display device for presentation so as to construct a wireless image transmission and reception network, to be returned after a meeting process and to be kept in a meeting room or the like is required. 
     Meanwhile, in Korean Patent Publication No. 10-2007-0070356 as a conventional technology which may wirelessly transmit and receive an image, there is disclosed a multi-port wireless image transmitting apparatus in which an image signal is compressed in an MPEG format and then wireless transmitted, and the transmitted compressed image signal is received, decoded and displayed. 
     This technology relates to a 1:1 wireless image transmission and reception, but does not describe an N:1 wireless image transmission and reception. 
     Also, since the transmission part and the reception device should have an MPEG encoder and decoder, respectively, manufacturing costs thereof may be increased. 
     Also, an MPEG calculation process is not appropriate to transmit and receive an image in real time for the purpose of the meeting or the like. 
     Also, as regards a conventional N:1 wireless image transmission and reception technology, there is disclosed a wireless projector system in Korean Patent Publication No. 10-2006-0039791. 
     Specifically, the system includes at least on image source device which stores image data; an image data transmission device which is installed at the image source device to receive an image data transmitting instruction transmitted through a wireless channel and to transmit image data stored in the image source device through the wireless channel; an image data reception device which communicates with the image data transmission device through the wireless channel, transmits the image data transmitting instruction to the image data transmission device according to an input instruction, and receives and outputs the image data transmitted in response to the image data transmitting instruction; and a projector in which the image data reception device is installed and which outputs and displays the image data output from the image data reception device through an optical lens. 
     That is, the image data transmission device is selected in the image data reception device using a selection button, and the image data transmission instruction is transmitted to the image data reception device so as to wirelessly transmit and receive an image. Also, a remote controller is separately provided to control the image data reception device. 
     However, since this is a reception device directed technology in which a selecting operation of the image data transmitting device and a transmitting operation of the image data are controlled in the reception device, it is not proper for a plurality of participants to immediately transmit their own data images. 
     This is because, in order for an N-th participant to transmit his/her own data image, the transmission device of the N-th participant has to be selected using the selection button of the remote controller, but it is difficult to select the transmitting device one by one on the spot of a conference, in which several hundred people participate, using the selection button of the reception device. 
     Also, since the conventional technology uses the selection button of the reception device or the remote controller, the number of the transmitting devices has to be limited, and thus it is not appropriate to the meeting, the seminar, the conference or the like in which various people participate. 
     SUMMARY OF THE INVENTION 
     The present invention is directed to a wireless image transmission and reception system which is capable of allowing participants to immediately transmit data images stored in their note books or smart pads to a PC or a display device for presentation according to their own intentions. 
     Also, the present invention is directed to a wireless image transmission and reception system which has a transmission button provided at one side of a transmission device to transmit image data of a corresponding transmission device by an operation of the transmission button, and thus to allow a plurality of participants to immediately transmit an image in real time. 
     Also, the present invention is directed to a wireless image transmission and reception system including a transmission device and a reception device which are detachably installed at a notebook or a smart pad, and a PC or a display device for presentation so as to be returned after a meeting, a conference, a seminar or the like and then to be kept in a meeting room or the like. 
     Also, the present invention is directed to a wireless image transmission and reception system in which the number of transmission devices is not limited so as to prepare for a meeting, a conference or a seminar having many participants. 
     According to an aspect of the present invention, there is provided a wireless image transmission and reception system including a plurality of transmission devices ( 100 ) and a reception device ( 200 ), wherein each of the transmission devices ( 100 ) includes a transmission button ( 110 ) turned on so as to transmit image data of a connected terminal ( 10 ) and an identifier of the transmission device ( 100 ); and an image transmission part ( 120 ) configured to wirelessly transmit the image data and the identifier, and the reception device ( 200 ) includes an image reception part ( 210 ) configured to receive wirelessly the image data and the identifier; and an identifier registration module ( 220 ) configured to register the identifier of the transmission device ( 100 ), thereby outputting the image data to a display device ( 20 ). 
     The transmission device ( 100 ) may start transmission of image data and an identifier by an ON operation of the transmission button ( 110 ). 
     An output of the display device ( 20 ) may be returned to an image before the image data is received. 
     The reception device ( 200 ) may receive the image data of the terminal ( 10 ) corresponding to the transmission button ( 110 ) which is turned on late in time. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objects, features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which: 
         FIG. 1  is a view schematically illustrating a situation in which a wireless image transmission and reception system in accordance with the present invention is used; 
         FIG. 2  is a view illustrating a main structure of the wireless image transmission and reception system in accordance with the present invention; 
         FIG. 3  is a view schematically illustrating an exterior of a transmission device included in the wireless image transmission and reception system in accordance with the present invention; and 
         FIG. 4  is a flowchart illustrating a method of using the wireless image transmission and reception system in accordance with the present invention. 
     
    
    
     DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     It should be understood that the terms used in the specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. 
     For example, it is appreciated that terms “module”, “part” and “interface” mentioned throughout the present description either are software means, hardware means or a combination of them, and also should be interpreted based on the meanings corresponding to technical aspects of the present invention. 
     Therefore, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention. 
     Before the description of the present invention with reference to the drawings, it is should be noted that the specific description of well-known structures which are not necessary to disclose the gist of the present invention, that is, could be obvious to those skilled in the art are not illustrated or specifically described. 
       FIG. 1  is a view schematically illustrating a situation in which a wireless image transmission and reception system in accordance with the present invention is used. 
     The wireless image transmission and reception system in accordance with the present invention includes a transmission device  100  and a reception device  200 . The transmission device  100  is detachably installed at a terminal  10 , in which image data is stored, so as to transmit the image data of the terminal  10  to the reception device  200 . 
     Also, the reception device  200  serves to receive the image data transmitted from the transmission device  100  and to transmit the image data to a display device  20  at which the reception device  200  is detachably installed. 
     Any device which has software driving image data, and the stored image data may be used as the terminal  10 . For example, the terminal  10  includes a notebook, a smart pad, a smart phone, a desk-top and so on. 
     Here, the image data means an image of video data, image data and office data (Word, Hangul, Excel, Power point or the like) output through the display device of the terminal  10 , and the image data driving software means software driving each data. 
     Any device which has a displaying function of outputting the image data may be used as the display device  20 . The display device  20  may or may not have the software driving the image data. This is because the image transmitted from the terminal  10  is already displayed on the terminal  10 . 
     For example, the display device  20  includes a monitor, TV, a projector, a notebook, a desk-top PC and so on. 
       FIG. 2  is a view illustrating a main structure of the wireless image transmission and reception system in accordance with the present invention, and  FIG. 3  is a view schematically illustrating an exterior of the transmission device included in the wireless image transmission and reception system in accordance with the present invention. 
     The wireless image transmission and reception system in accordance with the present invention includes a plurality of transmission devices  100  and one reception device  200 . 
     The transmission device  100  includes a transmission button  110 , an image transmission part  120 , an identifier interface  130 , an indication module  140  and a connector  150 . 
     Also, referring to  FIG. 3 , the transmission device  100  may further include a power indication part  141 , a transmission indication part  142 , a battery indication part  143  and a connection port  160 . 
     The transmission button  110  is a means for performing a function of turning on a function of the image transmission part  120 , and also is a button type means for transmitting the image data of the terminal  10  and an identifier of the transmission device  100  to the reception device  200 . 
     According to a design condition, the transmission button  110  may have various types, and thus may be formed in a switching or touching type. 
     Also, it may be configured so that the image is transmitted by pushing the transmission button  110 , and the transmitting function is tuned off by pushing the transmission button  110  again. 
     For example, when a participant pushes the transmission button  110  to transmit an image on his/her own smart part, the image on the terminal  10  is immediately transmitted to the reception device  200  and output through the display device  20 . Then, the participant pushes again the transmission button  110  after outputting the image on a screen and presenting his/her opinion, and ends the transmitting, and thus the screen is returned to an image of the PC for presentation. 
     Of course, when a function of ending the transmitting using the transmission button  110  is not provided, the screen is not returned to the image of the PC for presentation, but may be switched by an operation of the PC for presentation or an operation of the transmission button  110  by other participant. 
     The image transmission part  120  is a means for performing a function of transmitting the image data and the identifier, and may include an image transmission module  121  and an identifier transmission module  122 . 
     The image transmission module  121  serves to transmit the image data output through the screen of the terminal  10  to the reception device  200 , such that the data is transmitted according to a protocol which secures a wireless network between the transmission device  100  and the reception device  200 . 
     Here, the networking protocol means a protocol for a TCP/IP wireless LAN network, a ubiquitous sensor network, a wireless sensor network or other wireless local area network. 
     When a sensor network is used, an OS for the sensor network may be installed and operated at both of the transmission device  100  and the reception device  200  according to conditions. 
     The identifier transmission module  122  performs serves to transmit the identifier of the transmission device  100  to the reception device  200 , such that the identifier based on the networking protocol between the transmission device  100  and the reception device  200  is transmitted. 
     For example, in the case of the TPC/IP wireless LAN network, an IP address is the identifier, and in the case of the sensor network, a sensor ID is the identifier. 
     That is, in the wireless LAN network, the IP address of the transmission device  100  in which the transmission button  110  is pushed may be transmitted along with the image data, and in the sensor network, the sensor ID may be included in a packet head and then transmitted. 
     The identifier interface  130  is an interface means which enables the networking, has an inherent identifier based on a network interface, which serves as the identifier of the transmission device  100 . 
     For example, the identifier as the interface means is already determined at the identifier interface  130  used in a first transmission device  100 , and thus discrimination of the first transmission device  100  is also ensured. 
     The indication module  140  serves to operate an LED pilot lamp provided at an outside of the transmission device  100  and thus to indicate whether the transmission device  100  is operated. 
     For example, the power indication part  141 , the transmission indication part  142  and the battery indication part  143  may be realized by the LED pilot lamps, and the indication module  140  may inform a user of a state, in which functions of power, data transmission and battery (not shown) are operated, through each indication part. 
     That is, the power indication part  141  may be indicated when the transmission device  100  is operated, and the transmission indication part  142  may be indicated when the image data is transmitted to the reception device  200  by the operation of the transmission button  110 , and the battery indication part  143  may be indicated a battery remain. 
     In the case of the transmission device  100  which receives the power from the terminal  10 , the battery indication part  143  may be omitted according to the conditions. 
     The connector  150  is a means which is provided at one side of the transmission device  100  to be inserted and connected into the terminal  10 . 
     Here, the connector  150  may be formed to be connectable to an HDMI, Samsung I/O  30  PIN, or Apple I/O  30  PIN terminal, and thus to be selectively used by the user. According to the design conditions, the connector  150  may be one of connection terminals, such as an USB terminal or a monitor terminal (an RGB connection terminal and a DVI connection terminal), and an iPhone or android MicroUSB terminal, which are connected with the terminal  10 . 
     The transmission device  100  may further include the connection port  160  which serves as an interface for charging a built-in battery. 
     According to the design conditions, the connection port  160  may be formed so that a memory such as an USB and SD card is inserted therein, and thus may serve as a memory hub. For example, while the transmission device  100  is inserted, the USB may be connected to the connection port  160  so as to move USB data to the terminal  10 . 
     The reception device  200  includes an image reception part  210 , an identifier registration module  220 , a connector  230  and a network interface (not shown). Here, the network interface means a network interface means which enables the networking. 
     The image reception part  210  is a means which receives the image data and the identifier from the image transmission part  120  and then transmits them to the display device  20 , and includes an image reception module  211  and an identifier detection module  212 . 
     The image reception module  211  serves to receive the image data transmitted from the image transmission module  121 , and the identifier detection module  212  serves to detect the identifier transmitted from the identifier transmission module  122 . 
     Here, the image reception module  211  and the identifier detection module  212  serve to receive data according to the protocol which secures the wireless network between the transmission device  100  and the reception device  200 . 
     The identifier detection module  212  serves to detect the identifier and to allow the image transmitted from the transmission device  100  corresponding to the detected identifier to be transmitted. Here, the image of the transmission device  100  corresponding to the identifier which is late in time is transmitted. 
     For example, in the case in which a participant of a first transmission device  100  pushes the transmission button  110  and transmits an image of a first terminal  10 , and then another participant of a fifth transmission device  100  pushes the transmission button  110 , the image displayed on the screen is changed from the image of the first terminal  10  to the image of the fifth terminal  10 . 
     Therefore, the participants may immediately and actively transmit their own image. 
     The identifier registration module  220  serves to previously register the identifier of the transmission device  100  at the reception device  200  and thus to detect the corresponding transmission device  100  in response to the operation of the transmission button  110 . 
     That is, the transmission device  100  and the reception device  200  are connected to the terminal  10  and the display device  20 , respectively, to construct the network between the transmission device  100  and the reception device  200 , when power is turned on. In this process, the identifier of the transmission device  100  is automatically registered. 
     The connector  230  is a connection terminal which connects the reception device  200  and the display device  20 . Here, the connector  230  may be one of the connection terminals, such as the USB terminal and the monitor terminal (the RGB connection terminal and the DVI connection terminal), which are connected with the display device  20  and achieves a connection object. 
       FIG. 4  is a flowchart illustrating a method of using the wireless image transmission and reception system in accordance with the present invention. 
     A wireless image transmission and reception method may include an identifier registration operation S 10 , an identifier detection operation S 20 , a wireless connection operation S 30 , an image reception operation S 40  and a display output operation S 50 , and may be further include a connector release operation S 60 . 
     (1) Identifier Registration Operation S 10   
     In the identifier registration operation S 10 , the identifiers of the plurality of transmission devices  100  are registered at one reception device  200 . When the transmission device  100  and the reception device  200  are connected with the terminal  10  and the display device  20 , respectively, and the power is turned on, the identifiers of the transmission devices  100  are automatically registered. 
     (2) Identifier Detection Operation S 20   
     In the identifier detection operation S 20 , among the identifiers of the transmission devices  100  registered in the identifier registration operation S 10 , the transmission device  110  in which the transmission button  110  is operated is detected. 
     When the identifier of the transmission device  100  is detected by the operation of the transmission button  110 , the next operation is started, but when the identifier of the transmission device  100  is not detected, an operation of detecting again the identifier is performed. 
     Also, the identifier which is transmitted the latest in time is detected and processed. 
     (3) Wireless Connection Operation S 30   
     In the wireless connection operation S 30 , the transmission device  100  corresponding to the identifier is wirelessly connected with the reception device  200  after the identifier detection operation S 20 . 
     (4) Image Reception Operation S 40   
     In the image reception operation S 40 , the image data transmitted from the transmission device  100  corresponding to the identifier in the identifier detection operation S 20  is received after the wireless connection operation S 30 . 
     (5) Display Output Operation S 50   
     In the display output operation S 50 , the image data received in the image reception operation S 40  is output through the connected display device  20 . 
     (6) Connector Release Operation S 60   
     In the connector release operation S 60 , when the transmission button  110  is turned off by an operation of the user, the screen of the display device  20  is returned to an initial image before the image data is transmitted. 
     When a function of turning off the transmission using the transmission button  110  is not provided, the connector release operation S 60  may be omitted according to the design conditions. 
     Due to the above-mentioned wireless image transmission and reception system, the plurality of transmission devices may be connected to on reception device, and thus the wireless transmission and reception of the image data may be immediately and selectively performed by the transmission button provided at one side of the transmission device. 
     According to the wireless image transmission and reception system of the present invention, it is possible to allow the participants to immediately transmit the data images stored in their note books or smart pads to the PC or the display device for presentation, and thus to allow the participants to immediately share their opinions. 
     The wireless image transmission and reception system of the present invention includes the transmission device and the reception device which are kept in the meeting room or the like and then, if necessary, detachably installed at the notebooks or the smart pads of the participants, and the PC or the display device for presentation so as to be applied to various meetings, conferences or seminars. 
     According to the wireless image transmission and reception system of the present invention, the number of transmission devices is not limited so as to prepare for the meeting, the conference or the seminar having many participants. 
     It will be apparent to those skilled in the art that various modifications can be made to the above-described exemplary embodiments of the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention covers all such modifications provided they come within the scope of the appended claims and their equivalents.