Patent Publication Number: US-8973080-B2

Title: Method and apparatus for generating plurality of applications, and method and apparatus for processing application suitable for broadcasting receiving apparatus

Description:
CROSS-REFERENCE TO RELATED PATENT APPLICATIONS 
     This application claims priority from Korean Patent Application No. 10-2006-0090469, filed on Sep. 19, 2006, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     Apparatuses and methods consistent with the present invention relate to data broadcasting, and more particularly, to generating a plurality of applications, selecting an application easily processed by a broadcasting receiving apparatus among the plurality of applications and executing the selected application. 
     2. Description of the Related Art 
     Data broadcasting provides general information relating to broadcasting programs, living information, Internet access, electronic commerce, bi-directional entertainment in addition to existing broadcasting programs using broadcasting networks such as ground waves, satellite, or cable, etc. The international data broadcasting specifications include open cable application platform (OCAP), advanced common application platform (ACAP), multimedia home platform (MHP), etc. 
       FIG. 1  is a diagram of one application transferred to one broadcasting receiving apparatus. Referring to  FIG. 1 , a data broadcasting apparatus  110  generates an application and transmits the application to a data broadcasting receiving apparatus  120 . The application is an application program executed based on a Java virtual machine (JVM) of a broadcasting receiver. The application transmitted from the data broadcasting apparatus  110  is loaded by an application processor  123  of the data broadcasting receiving apparatus  120  and processed. Broadcasting including media data such as audio and video data and the application as well provides a user with various pieces of information relating to the media data. 
     However, applications having one object mostly aim at one type of broadcasting receiving apparatus. Generally, applications having one object aim at a broadcasting receiving apparatus having a large display. Therefore, there is no application suitable for a broadcasting receiving apparatus in different form, e.g. a small mobile device. 
     SUMMARY OF THE INVENTION 
     The present invention provides an application generating method and apparatus for transmitting a plurality of applications aiming at broadcasting receiving apparatuses having various forms. 
     The present invention also provides an application processing method and apparatus for selecting an application suitable for a broadcasting receiving apparatus when a plurality of applications are transmitted to the broadcasting receiving apparatus and executing the selected application. 
     According to an aspect of the present invention, there is provided an application generating method comprising: generating a plurality of applications selectively executed by a broadcasting receiving apparatus and information on each of the plurality of applications; and transmitting the plurality of applications and the information on each of the plurality of applications, wherein the plurality of applications provide a common broadcasting service. 
     The information on each of the plurality of applications may include information on the broadcasting receiving apparatus that executes the plurality of applications. 
     The information on the broadcasting receiving apparatus may include at least one of identification information and version information on the broadcasting receiving apparatus. 
     The information on each of the plurality of applications may be defined based on a function performed by the broadcasting receiving apparatus. 
     According to another aspect of the present invention, there is provided an application generating apparatus comprising: an application generator which generates a plurality of applications selectively executed by a broadcasting receiving apparatus and information on each of the plurality of applications; and an application transmitter which transmits the plurality of applications and the information on each of the plurality of applications, wherein the plurality of applications provide a common broadcasting service. 
     According to another aspect of the present invention, there is provided an application processing method comprising: analyzing information on each of a plurality of applications providing a common broadcasting service; selecting an application suitable for a broadcasting receiving apparatus among the plurality of applications based on the analysis; and executing the selected application. 
     The selecting of the application may comprise: comparing information on the broadcasting receiving apparatus that executes the selected application included in the information on each of the plurality of applications with information on the broadcasting receiving apparatus that receives the selected application. 
     The selecting of the application may further comprise: comparing information on a function performed by the broadcasting receiving apparatus included in the information on each of the plurality of applications with information on a function performed by the broadcasting receiving apparatus that receives the selected application. 
     The executing of the selected application may comprise: acquiring the selected application using component tags which are information on carousel included in the information on each of the plurality of applications and association tags which are information on carousel included in a program map table of a stream including the selected application. 
     According to another aspect of the present invention, there is provided an application processing apparatus comprising: an application information analyzer which analyzes information on each of a plurality of applications providing a common broadcasting service; an application selector which selects an application suitable for a broadcasting receiving apparatus among the plurality of applications based on the analysis; and an application executor which executes the selected application. 
     According to another aspect of the present invention, there is provided a computer readable medium having embodied thereon a computer program for executing an application generating method, the method comprising: generating a plurality of applications that provide a common broadcasting service selectively executed by a broadcasting receiving apparatus and information on each of the plurality of applications; and transmitting the plurality of applications and the information on each of the plurality of applications, wherein the plurality of applications provide a common broadcasting service. 
     According to another aspect of the present invention, there is provided a computer readable medium having embodied thereon a computer program for executing an application processing method, the method comprising: analyzing information on each of a plurality of applications providing a common broadcasting service; selecting an application suitable for a broadcasting receiving apparatus among the plurality of applications based on the analysis; and executing the selected application. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: 
         FIG. 1  is a diagram of one application transferred to one broadcasting receiving apparatus; 
         FIG. 2  is a diagram of a system in which a plurality of applications are transferred to various kinds of broadcasting receiving apparatuses according to an exemplary embodiment of the present invention; 
         FIG. 3  is a flowchart illustrating a method of generating a plurality of applications according to an exemplary embodiment of the present invention; 
         FIG. 4  is a block diagram of an apparatus for generating a plurality of applications according to an exemplary embodiment of the present invention; 
         FIG. 5  is a flowchart illustrating a method of processing an application suitable for a broadcasting receiving apparatus among a plurality of applications according to an exemplary embodiment of the present invention; 
         FIG. 6  is a block diagram of an apparatus for processing an application suitable for a broadcasting receiving apparatus among a plurality of applications according to an exemplary embodiment of the present invention; and 
         FIG. 7  is a diagram for explaining an application executing method according to an exemplary embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     The present invention will now be described more fully with reference to the accompanying drawings. 
       FIG. 2  is a diagram of a system in which a plurality of applications  220  are transferred to various kinds of broadcasting receiving apparatuses according to an exemplary embodiment of the present invention. Referring to  FIG. 2 , a data broadcasting apparatus  210  generates the plurality of applications having a different function according to kinds of broadcasting receiving apparatuses. Although the plurality of applications  220  have a common object, they are selectively executed by broadcasting receiving apparatuses having different additional functions. In detail, the plurality of applications  220  have different properties, and must be selectively executed by broadcasting receiving apparatuses. The number of applications transferred to one broadcasting receiving apparatus is not limited, and can be determined according to the type or specification of the broadcasting receiving apparatus. 
     The plurality of applications  220  includes application_ 1 , application_ 2 , application_ 3 , application_ 4 , and application_ 5 . It is assumed that the plurality of applications  220  have a common object to provide a sports game. 
     The application_ 1  provides a sports game and additional information such as information on football players, game progress, etc. The application_ 2  provides the sports game filmed at a different angle through another channel when the sports game is provided. Here, the other channel may be a channel having a physically same frequency, or another logical channel included in a physical channel such as a multi mode service (MMS). 
     The application_ 3  provides a function of recording the sports game broadcasting while providing the sports game. The application_ 4  provides the sports game and a video clip, for example, an interview with football players. The video clip may be information received through a broadcasting channel or information recorded in a receiving terminal. Although the application_ 5  is identical to the application_ 1 , it provides a graphic user interface (GUI) for a small screen. 
     Receiving terminal A  231  through receiving terminal E  235  are televisions having a function of displaying a received broadcasting signal but have different specifications. The receiving terminal A  231  is a large television providing a broadcasting signal received through a tuner on a large screen. The receiving terminal B  232  is a television having two tuners and providing a picture in picture (PIP) function of providing two broadcasting signals received through two channels. The receiving terminal C 233  is a television having a recording function. The receiving terminal D  234  is a television having a function of decoding two pieces of video data. The receiving terminal E  235  is a small television providing a received broadcasting signal on a small screen. 
     Although the application_ 1  through the application_ 5  are simultaneously transferred through a predetermined broadcasting channel, each receiving terminal executes a different application. It is suitable to execute the application_ 1  in the receiving terminal A  231 . It is suitable to execute the application_ 2  in the receiving terminal B  232 . It is suitable to execute the application_ 3  in the receiving terminal C  233 . It is suitable to execute the application_ 4  in the receiving terminal D  234 . It is suitable to execute the application_ 5  in the receiving terminal E  235 . 
     Therefore, in an environment where the plurality of applications  220  are transferred, each receiving terminal selects an application easily executed among the plurality of applications  220  to execute the selected application. 
       FIG. 3  is a flowchart illustrating a method of generating a plurality of applications according to an exemplary embodiment of the present invention. Referring to  FIG. 3 , the plurality of applications and information on each of the plurality of applications are generated in operation  310 . As mentioned above, the plurality of applications provide a common broadcasting service and an additional function selectively executed by a broadcasting receiving apparatus. The information on each of the plurality of applications may be transferred to an application information table (AIT) or an eXtended application information table (XAIT). The AIT includes overall information on a broadcasting service, information on an application transferred through broadcasting, etc. 
     The information on each of the plurality of applications according to an exemplary embodiment of the present invention includes information on a broadcasting receiving apparatus that is able to execute the plurality of applications. For example, the information on the broadcasting receiving apparatus includes at least one of identification information or version information on the broadcasting receiving apparatus. The AIT can include information on an application with respect to a broadcasting receiving terminal A, information on an application with respect to a broadcasting receiving terminal B, . . . , information on an application with respect to a broadcasting receiving terminal N. 
     The information on each of the plurality of applications can be defined based on a function performed by the broadcasting receiving apparatus. For example, the AIT can include information on an application with respect to a function A, information on an application with respect to a function B, . . . , information on an application with respect to a function N. 
     An AIT corresponding to each of the plurality of applications is transmitted to provide the information on each of the plurality of applications according to a broadcasting receiving apparatus or a function. The information on each of the plurality of applications can have a variety of forms. 
     The plurality of applications and the information on each of the plurality of applications are transmitted in operation  320  via a ground wave, an Internet network, or a satellite. 
       FIG. 4  is a block diagram of an apparatus  400  for generating a plurality of applications according to an exemplary embodiment of the present invention. Referring to  FIG. 4 , the apparatus  300  for generating a plurality of applications comprises an application generator  410  and an application transmitter  420 . 
     The application generator  410  generates the plurality of applications which provide a common broadcasting service and is selectively executed by a broadcasting receiving apparatus, and information on each of the plurality of applications. The information on each of the plurality of applications includes information on the broadcasting receiving apparatus that executes the plurality of applications. For example, the information on the broadcasting receiving apparatus includes at least one of identification information and version information on the broadcasting receiving apparatus. The information on each of the plurality of applications can be defined based on a function performed by the broadcasting receiving apparatus. 
     The application transmitter  420  transmits the plurality of applications and the information on each of the plurality of applications. The application transmitter  420  generates a transmission stream for transmitting the plurality of applications and the information on each of the plurality of applications, and transmits the transmission stream using a carousel method suitable for broadcasting. 
     For example, the application transmitter  420  generates the plurality of applications and the information on each of the plurality of applications in the form of an MPEG-2 transmission stream, sequentially converts the MPEG-2 transmission stream into an object carousel, a data carousel, and a MPEG-2 digital storage media command and control (DSM-CC) message, and broadcasts the DSM-CC message. 
     The DSM-CC is the standard technology defined by International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) 13818-6 and indicates a transport layer message for a data service. The ISO/IEC 13818-6 is the MPEG standard technology relating to a carousel structure and a transmission method. The data carousel is mechanism for a periodic transmission of a data module defined by a DSM-CC user-to-network (U-N) download protocol. The object carousel is mechanism for a periodic transmission of a DSM-CC user-to-user (U-U) object above the data carousel, and carries a layer file structure using a DSM-CC U-U file/directory object. 
       FIG. 5  is a flowchart illustrating a method of processing an application suitable for a broadcasting receiving apparatus among a plurality of applications according to an exemplary embodiment of the present invention. Referring to  FIG. 5 , information on each of the plurality of applications providing a common broadcasting service is analyzed in operation  510 . 
     The application suitable for the broadcasting receiving apparatus is selected among the plurality of applications based on the analysis in operation  520 . 
     In operation  520 , information on the broadcasting receiving apparatus that executes the plurality of applications included in the information on each of the plurality of applications is compared with information on the broadcasting receiving apparatus that receives the plurality of applications to select a matching application. Or, in operation  520 , information on a function performed by the broadcasting receiving apparatus included in the information on each of the plurality of applications is compared with information on a function performed by the broadcasting receiving apparatus that receives the plurality of applications to select the matching application. 
     The selected application is executed in operation  530 . 
       FIG. 7  is a diagram for explaining an application executing method according to an exemplary embodiment of the present invention. Referring to  FIG. 7 , information on each of a plurality of applications  711 - 714  included in an application information table  710  is transmitted. The information on each of the plurality of applications  711 - 714  include a component tags for identifying basic service components transferring the plurality of applications. The identified service components are a stream for transferring information on an object carousel. 
     Association tags  721 - 724  describing carousel information are included in a program map table  720  in the stream. Each of the plurality of applications  731 - 734  can be retrieved from streams linked with the association tags  721 - 724 . 
     Therefore, in operation  530  illustrated in  FIG. 5 , the selected application is acquired and executed using the component tags which are information on the carousel included in the information on each of the plurality of applications and the association tags  721 - 724  which are information on the carousel included in the program map table  720  of the stream including the selected application. 
       FIG. 6  is a block diagram of an apparatus  600  for processing an application suitable for a broadcasting receiving apparatus among a plurality of applications according to an exemplary embodiment of the present invention. Referring to  FIG. 6 , the apparatus  600  for processing the application comprises an application information analyzer  610 , an application selector  620 , and an application executor  630 . 
     The application information analyzer  610  analyzes information on each of the plurality of applications providing a common broadcasting service. 
     The application selector  620  selects an application suitable for the broadcasting receiving apparatus among the plurality of applications based on the analysis. The application selector  620  compares information on the broadcasting receiving apparatus that executes the plurality of applications included in the information on each of the plurality of applications with information on the broadcasting receiving apparatus that receives the plurality of applications to select a matching application. The broadcasting receiving apparatus stores identification information identified by another apparatus and version information, and communicates with the apparatus  600  for processing the application to provide the identification information and the version information. 
     Or, the application selector  620  compares information on a function performed by the broadcasting receiving apparatus included in the information on each of the plurality of applications with information on a function performed by the broadcasting receiving apparatus that receives the plurality of applications to select the matching application. 
     The application executor  630  executes an application included in a transmission stream described by the information on each of the plurality of applications. The application executor  630  acquires the selected application and executes the acquired application using component tags which are information on a carousel included in the information on each of the plurality of applications and association tags which are information on the carousel included in a program map table of a stream including the selected application. 
     The apparatus  600  for processing the application can be included in a data broadcasting receiving apparatus. Although the data broadcasting receiving apparatus including the apparatus  600  for processing the application receives the plurality of applications providing a common broadcasting service, it can select an application easily executed and execute the selected application. Or, the apparatus  600  for processing the application communicates with the data broadcasting receiving apparatus through a predetermined interface so that an application easily executed by the data broadcasting receiving apparatus can be selected. 
     The present invention can also be embodied as computer readable code on a computer readable recording medium. The computer readable recording medium is any data storage device that can store data which can be thereafter read by a computer system. Examples of the computer readable recording medium include read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tapes, floppy disks and optical data storage devices. The computer readable recording medium can also be distributed network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. 
     The present invention provides an application generating method and apparatus that transmit a plurality of applications selected by a broadcasting receiving apparatus. Therefore, an application manufacturer may not have to correct an existing application but manufacture an application necessary for various kinds of broadcasting receiving apparatuses or a newly developed broadcasting receiving apparatus using the application generating method and an apparatus according to the exemplary embodiments of the present invention. 
     Further, the present invention provides an application processing apparatus and method that selects an application easily executed by a broadcasting receiving apparatus when a plurality of applications are transferred to the broadcasting receiving apparatus. Therefore, the broadcasting receiving apparatus using the application processing apparatus and method according to the exemplary embodiments of the present invention may select an application suitable for the broadcasting receiving apparatus although the broadcasting receiving apparatus receives the plurality of applications, which does not need to store all applications, thereby avoiding unnecessary memory consumption and providing an efficient broadcasting service. 
     While the present invention has been particularly shown and described with reference to the exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.