KR100751424B1 - system and method for transmitting contents for digital theater - Google Patents

Abstract

The present invention relates to a system for transmitting movie contents in a digital theater and a method thereof.

The system provides the movie contents to the movie screening device or the screening control device while being connected to the movie screening device of the theater screening the movie theater and the screening control device of the theater that controls the film screening through the network. do. In particular, by performing authentication on each device and, if authenticated, generate an authentication key value and provide it to the device so that each device can decrypt and use the provided encrypted movie file based on the authentication key value even when offline. . When providing a movie file, the movie file is provided only when each device satisfies the screening condition of the corresponding movie.

Movie content transmission, digital theater, certification

Description

System for transmitting movie contents in digital theaters and its method {system and method for transmitting contents for digital theater}

1 is an overall structural diagram based on the connection relationship of the movie content delivery system of the digital theater according to the present invention.

FIG. 2 is a detailed structural diagram of a movie content delivery system shown in FIG. 1.

3 is a detailed structural diagram of the screening control device and the movie screening device shown in FIG.

4 is a diagram illustrating an example in which a variety of information is registered in the movie delivery system according to an embodiment of the present invention.

5 is an exemplary screen illustrating an example of registering a screening condition according to an exemplary embodiment of the present invention.

6 is a flowchart illustrating an authentication process according to an embodiment of the present invention.

7 is a flowchart illustrating a movie transmission process according to an embodiment of the present invention.

8 is a flowchart illustrating a movie screening process according to an embodiment of the present invention.

The present invention relates to movie content delivery, and more particularly, to a system and method for transmitting movie content of a digital theater through a network.

In general, the movie screening in the theater uses a method of projecting an analog-type film made on film to the screen through a film projector, but recently, due to the development of digital technology, a digital theater that produces and displays a movie as digital content The method is proposed.

In the digital theater environment, the movie content itself is produced in a digital format, or an analog film source is reproduced as digital content through a digital conversion process and displayed in the theater. With the advent of digital theaters, video contents such as screen advertisements, screen movies, etc. are produced in the form of common standardized digital image files such as MPEG2 or H.264, rather than the conventional analog film forms, and thus, satellite, wired and wireless networks, and Digital media such as digital storage media (such as DVDs and CDs) can be distributed to each theater.

The screening system of the digital theater is divided into multiple stages such as a central management office, a theater, and a theater as in a general film and video theater. Therefore, a system for managing the delivery of a movie is required until the digital movie contents are screened through each stage. Also, when the movie contents are transmitted to each theater and the theater, only the theater and the theater having the authority to use the movie can be screened. A screening certification scheme is needed to prevent unauthorized screening at theaters that do not have the right to use.

Conventional digital movie contents related technology compares the movie screening condition stored in the server with the movie reservation information provided from the client connected to the server, determines whether the movie is screened and the movie theater, and provides the movie content to the determined movie theater. Korean Patent Application Publication No. 2005-71893 discloses a movie ticket booking and screening method and system.

However, such a conventional technology and a conventional authentication scheme may cause a situation in which the screening cannot be performed suddenly because the online authentication is not allowed when a network failure occurs. In this case, the theater's business service may cause difficulties, resulting in cost disadvantages.

Therefore, the technical problem to be achieved by the present invention is to transmit movie contents in stages through a network in a digital theater system where movie contents are screened through a plurality of stages, so that the movie contents can be efficiently screened at a lower stage. .

In addition, the technical problem to be achieved by the present invention is to perform a reliable authentication so that only the subject having the right to use the movie can be screened.

In addition, the technical problem to be achieved by the present invention is to prevent the damage caused as a result of the sudden failure to screen the movie content to be authenticated to the subject having a right to use even if a temporary failure on the network.

In order to achieve the above technical problem, the movie content delivery system according to the characteristics of the present invention, the movie screening device of the theater screening the movie through the network, the screening control device of the theater connected to the movie screening device to control the film screening; A system connected to provide movie contents through the network, the theater database storing information about a theater and at least one or more theaters associated with the theater; A movie database storing movie files related to movie contents; An authentication database that stores system authentication information issued to the theater or lower theater, a movie allowing screening at these theaters and theaters, and screening condition information in which information is set; Register relevant information in the databases, perform authentication based on authentication information stored in the authentication database according to an authentication request from a screening control device or a movie screening device through the network, and according to the result, a movie corresponding to movie content And a processing server for providing a file, wherein the processing server generates an authentication key value when the authentication is processed, and includes it in the authentication approval signal to provide the authentication key value to the devices, and provides the provided authentication key value to the authentication device. Write to the database.

According to another aspect of the present invention, a movie screening device is connected to a system for providing movie content through a network, and is a movie theater device for displaying a movie based on the provided movie content. An authentication request unit for requesting authentication for the certificate and storing authentication information provided from the system; A movie storage unit for receiving and storing a movie file corresponding to movie content provided from the system; A movie screening unit which drives a movie file stored in the movie storage unit to display corresponding movie contents; And a log processor configured to generate movie screening log information including at least one of a unique identification code, a screening start time, and a screening end time of the screened movie, and transmit the generated screening log information to the system to report the screening of the film.

In addition, the screening control device according to another aspect of the present invention is a system for providing movie content through a network, and a screening control device connected to at least one or more movie screening device, the system to request authentication for the use of movie content An authentication request unit for storing authentication information provided from the system; A movie storage unit which requests and receives a movie file to be screened from the lower movie screening device provided from the system and stores the same; And a movie providing unit that finds a corresponding movie file from the movie storage unit and sends the movie file to the movie screening apparatus in response to a movie file request from the movie screening apparatus.

In addition, the movie content delivery method according to another aspect of the present invention is connected to the movie screening device of the theater screening the movie, the movie screening device of the theater connected to the movie screening device for controlling the movie screening through a network, the digital theater A method of transmitting a movie content of a system for providing a movie content through the network, the method comprising: a) registering theater and theater information and identification information for authentication processing according to unique identification codes of the theater and the theater; b) conditions for screening the movie in response to a unique identification code assigned to each piece of movie content to be provided, wherein the screening condition includes at least one of a theater and a theater, a screening period, and the number of screenings of the film. Registering; c) performing authentication based on the registered authentication information according to an authentication request from the screening control device of the theater or the film screening device of the theater, and generating an authentication key value and providing the device to the device when the authentication is performed; d) When a movie file request from the screening control device of the certified theater or the movie screening device of the theater is input, the screening condition set by the movie content is searched for and the movie content having the screening condition satisfies the theater or the theater. Finding; And e) encrypting a movie file for the found movie content and providing the encrypted movie file to the screening control device or the movie screening device of the theater, wherein the authentication key value decrypts the encrypted movie file in each device. Used for

Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present disclosure. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 illustrates a connection relationship between a movie content delivery system of a digital theater according to an exemplary embodiment of the present invention.

Movie content delivery system 100 of the digital theater according to an embodiment of the present invention, as shown in the accompanying Figure 1, the network (including all wired and wireless networks, such as the Internet, wireless communication network, satellite communication network, future network) 200 Through at least one screening control device (310, ... 30N, hereinafter "300" for convenience). The screening control device 300 is substantially connected to at least one screening device 400 for screening movie content.

Meanwhile, FIG. 1 is a multiplex type digital theater having several theaters in one theater, and transmits movie contents in units of theaters through a network, receives movie contents transmitted from each theater, and then lowers them. It shows the connection between the system and the devices based on the screening through the theater. However, the present invention is not limited thereto, and the present invention can be applied to a case in which a theater is composed of only one theater or a theater that does not have a separate screening control device. In FIG. 1, the movie screening apparatus 400 may be implemented to be connected to the movie transmission system 100 directly through the network 200 without the screening control apparatus 300.

The movie content delivery system 100 having such a connection transmits or authenticates a movie to each theater and theater, and its specific structure is illustrated in FIG. 2.

As shown in FIG. 2, the movie content delivery system 100 according to an embodiment of the present invention includes a theater database 110, a movie database 120, an authentication database 130, and a log database 140. In addition, the processing server 150 performs movie content transmission and authentication based on the information stored in the database 110 to 140.

The theater database 110 stores information about theaters and theaters managed by the system 100. For example, the theater database 110 corresponds to the unique recognition codes of one or more theaters that are held in correspondence with the theater's unique recognition codes. It is. In addition, information such as a name, a location, and a number of theaters are stored in correspondence with a unique recognition code of a theater, and information such as a screen size and a grandstand size of a theater is stored in correspondence with a unique identification code of a theater.

The movie database 120 stores movie contents transmitted through the system 100 and related information. For example, corresponding to the content unique identification code assigned to the movie content, information such as a title, a production company, a distributor, an original movie file, and an encrypted movie file are stored.

The authentication database 130 stores information on a subject who can receive and display movie content through the system 100. For example, authentication information such as equipment identification code, authentication key value, and certificate issuance date corresponding to the unique recognition codes of theaters and theaters, and information such as movies and screening conditions that allow screenings in accordance with these theaters and theaters Is saving. Here, the equipment identification code represents information about equipment used in each theater and theater, and for example, equipment identification attached to a network card's unique identification code (MAC Address), Internet Protocol (IP) address, or equipment port terminal separately. Equipment code and the like.

The log database 140 stores movie screening log information according to movie screening. For example, log information including screening records, such as a screening time, a screening start time, a screening end time, and the like of a screened movie corresponding to the screening code of the theater is stored.

On the other hand, as shown in Fig. 2, the processing server 150 includes a theater registration unit 15a, a movie registration unit 15b, a movie password processing unit 15c, an authentication unit 15d, a log recording unit 15e, and an illegal screening discriminating unit 15f. ), A screening condition register 15g, a movie sender 15h, and a communication processor 15i that processes communication with the screening control device 300 or the film screening device 400 through the network 200.

The theater registration unit 15a registers information about a theater and a lower theater in the theater database 101, and the movie registration unit 15b receives information about a movie and an original movie file from a plurality of movie content providers. The movie encryption processing unit 15c inserts separate encryption key data into the original movie file to generate a new encryption file. In addition, the screening condition registration unit 15g registers screening conditions such that the screening is performed only in theaters and screening devices that satisfy predetermined conditions, and the screening conditions are designated for a specific film and are designated for theaters and theaters. .

In response to the authentication request from the screening control device 300 or the lower screening screening device 400, the authentication unit 15d determines whether or not it is appropriate and accepts or rejects the authentication. The movie sending unit 15h reads the movie file from the movie database 120 and sends the movie file to the screening control device 300 or / and the film screening device 400 according to the authentication processing result of the authentication part.

In order to prevent illegal movie screening, the log recording unit 15e receives and records movie screening log information transmitted from the movie screening device 400, and the illegal screening discriminating unit 15f records the movie screening log information and the authentication database 1230. By comparing the authentication information for the screening condition stored in the), the screening device which screened illegally is different from the screening condition.

In the present embodiment, information stored and managed in the system 100 is classified and stored into a plurality of databases 110 to 140, but the information stored in each database 110 to 140 may be stored in one database. It is not limited to the above-described ones. In addition, each component of the processing server 150 is also classified according to its function, and is not limited to this classification format.

On the other hand, the screening control device 300 receives the movie content provided from the movie delivery system 100 having such a structure and provides it to each of the lower movie screening device, each movie screening device screens the received movie content. 3 is a diagram showing the structure of a screening control device and a movie screening apparatus according to an embodiment of the present invention.

The screening control device 300 is installed in each of a plurality of theaters in remote locations, and provides the movie content transmitted from the system 100 to the film screening device 400 corresponding to the lower theater. As shown in FIG. 3, the screening control device 300 requests the system 100 to authenticate for screening a movie and stores the first authentication information 310 and the first authentication information stored therein. The first movie storage unit 320 for requesting movie content to be screened by each movie screening device connected to the lower part through the information and storing the received movie file accordingly, to a movie file request from the lower movie screening device. Correspondingly, a movie providing unit 330 for retrieving a movie file from the movie storage unit and providing the movie file to the movie screening device, in addition to the communication processing unit for processing data communication with the movie delivery system 100 or the movie screening device 400 ( 340).

On the other hand, the movie screening device 400 screens a movie based on the movie file that is connected to and delivered to the screening control device 300 having such a structure. To this end, as shown in FIG. 3, the second authentication request unit 410 and the second authentication information requesting the movie transmission system 100 to authenticate the movie screening and storing the authorized second authentication information in the system. Based on the second movie storage unit 420, which requests a movie file to be screened in its own theater and receives the movie file provided according to the movie transmission system 100 or the screening control device 300, and stores it therein. Movie display unit 430 for driving a movie file from the first movie storage unit of the second movie storage unit or the screening control device 300 to be displayed on a screen (not shown), and the log after the movie screening is finished. And a log processing unit 440 for transmitting the movie showing log information, which has recorded the screening log to a file, to the movie dispensing system 100. In particular, if the network connection with the movie transmission system 100 is normal, the log processing unit 440 deletes the movie screening log information after transmitting the system screening log information to the system 100. Save without deleting. In addition, the apparatus may further include a communication processor 450 for processing data communication with the movie transmission system 100 or the screening control apparatus 200.

In the system 100 and the apparatuses 300 and 400, the communication processing units 15i, 340, and 450 transmit and receive information to each other according to various communication interfaces, and these communication techniques may be used by those skilled in the art. .

Next, a method of transmitting movie content in a digital theater according to an embodiment of the present invention will be described based on such a structure.

In order to transmit movie content through the network, the system 100 is provided with a movie condition to be screened by a plurality of movie content providers to display the movie. In addition, when the administrator of the system 100 produces a movie file by itself, the screening condition is also registered while registering the produced movie file in the system 100. In addition, the system 100 receives and registers information about a screening control device and a film screening device that can receive movie content through a network.

This registration process may be performed after movie content providers or theater managers access the movie delivery system 100 directly through the network 200, or based on information provided from the provider or theater managers. 100 may perform the registration process itself.

4 illustrates an example in which various types of information are registered in a movie delivery system according to an exemplary embodiment of the present invention.

As illustrated in FIG. 4, the system 100 registers information such as a unique identification code, name, location, screen size, grandstand size, and the like for the theater and the theater in the theater database 110 through the theater registration unit 15a. do.

In addition, the movie registration unit 15b registers information on a unique identification code, title, production company, distributor, screening period, etc. for the movie to be sent, and an original movie file corresponding thereto in the movie database 120. In this case, if the movie encryption processing unit 15c requires the first encryption process or the first encryption process to add an encryption key value to the original movie file for the security of the information transmitted through the network, the limitation on the screen validity period is required. After performing the second encryption process based on this, the encrypted movie file is registered in the movie database 120. However, this encryption process may be performed at the time of registering the movie content, or may be performed at the time of transmitting the content later.

In addition, the authentication unit 15d receives the ID and password from the registered theaters and theaters, and registers corresponding to the unique recognition codes corresponding to the authentication database 130.

In addition, the screening condition registration unit 15g designates a theater and a theater to be screened in response to the movie file registered above, and registers screening conditions such as a screening period and the number of screenings in the authentication database 130. 5 shows an example of registering a screening condition according to an embodiment of the present invention. Specifically, FIG. 5 illustrates a registration screen provided from the system 100 when a movie content provider or a system administrator registers a screening condition by accessing the system 100.

When a movie content provider or a system administrator requests a screening condition registration, a screening condition registration screen 600 as illustrated in FIG. 5 is provided. In the screening condition registration screen, a list of movies 601 registered in the movie database 120 and a list of theaters and lower theaters 602 registered in the theater database 110 are provided.

Accordingly, the movie content provider or system administrator selects a specific movie from the movie list 601 and then selects a theater or sub-theater from the movie theater list 602 to allow the movie to be screened. In addition, when a screening condition field such as screening start date, screening end date, screening frequency, etc. is inputted in the screening condition field 603 and the confirmation button 604 is pressed, the screening condition register 15g is displayed at the time when the confirmation button 604 is pressed. The input information is registered in the authentication database 130 as a screening condition of the corresponding movie.

The screening conditions registered as above are used as important data for determining a theater and a lower theater where the movie contents can be provided when the movie contents are transmitted later.

As described above, in a state in which movie content, information related to the movie content screening, and information about a theater or a theater that can receive movie content are registered, a movie content transmission process through a network is performed as follows.

In order to transmit movie content, authentication of a theater or a theater that has requested movie content must first be performed.

6 is a flowchart illustrating an authentication process for transmitting movie content according to an embodiment of the present invention.

The screening control device 300 requests authentication of the film screening from the system 100 according to a film screening request from the film screening device 400 connected to the lower part, or independently of the request of the film screening device 400. Certification may be requested in accordance with the In-Movie screening schedule.

As shown in FIG. 6, when an authentication request signal is input from the first authentication request unit 310 of the screening control device 300 connected through the network 200, the authentication unit 15d of the system 100 is provided. Requests input of authentication information (S200 to S210).

Accordingly, the first authentication requester 310 transmits the ID and password for authentication to the system 100 together with the unique recognition code of the theater, and in particular, the device recognition code information about the internal equipment of the screening control device 200 is also provided. Together with the system 100 to transmit (S220). At this time, the equipment identification code has a unique identification code (MAC Address) for the network card used by the screening control device 300, an Internet protocol address assigned to the screening control device 300, or a port terminal to which authentication information is transmitted. At least one of the equipment recognition code for may be included.

When the authentication information including the unique identification code, the ID and password, and the equipment identification code is transmitted from the screening control device 300, the authentication unit 15d of the system 100 first searches the theater database 110 and the theater It is determined whether the unique recognition code is registered in advance (S230).

In the case of a registered theater, the authentication database 130 is searched to determine whether the ID and password transmitted from the screening control device 300 correspond to the stored authentication information corresponding to the corresponding unique recognition code, and if it matches, it is a legal theater. By judging, an authentication key value is generated (S240 to S250). Then, in response to the unique recognition code, ID and password of the theater of the authentication database 130, the authentication processing result, that is, the equipment recognition code, authentication confirmation date and time, and the authentication key value is recorded (S260), the screening control device ( The authentication approval signal is transmitted to 300 (S270). The transmitted authentication approval signal may include an ID, a password, a device recognition code, an authentication confirmation date, and an authentication key value corresponding to the unique recognition code of the theater. Here, the authentication key value may be a sequence of numbers arbitrarily designated by the system 100.

As described above, the first authentication request unit 310 of the screening control device 300 which has been authenticated and received an authentication approval signal from the system 100 stores information included in the authentication approval signal, and in particular, the system 100. The authentication confirmation date and time received from the authentication, and stores the authentication key value (S280). If the unique identification code of the theater is not registered in advance or the transmitted ID and password do not match the stored authentication information, the authentication unit 15d of the system 100 transmits the authentication rejection signal to the screening control device 300. (S290)

Meanwhile, the authentication process for the movie screening device 400 may also be performed separately. The authentication process for the movie screening device 400 is also performed as described above. That is, when the unique recognition code, ID and password of the theater provided from the second authentication request unit 410 of the movie screening device 400 and the equipment recognition code information are transmitted, the authentication unit 15d of the system 100 is connected to the theater database. The authentication is performed according to whether or not the theater unique recognition code is registered in the 110, and whether the transmitted ID and password are stored in the authentication database 130, and the result of the processing is recorded, and the authentication approval signal accordingly. (A unique recognition code, ID, password, equipment recognition code, authentication confirmation date, authentication key value, etc. of the theater) to the movie screening device 400. The authentication process of the movie screening apparatus 400 may be performed by direct communication with the system 100 or may be performed through the screening control apparatus 300.

Also, in the case of the multiplex theater in which the movie screening device 400 is connected to the screening control device 300, the authentication of the screening control device 300 is processed, and then the authentication processing of the film screening device 400 is sequentially performed. Can be performed. In addition, in the case of the multiplex theater, if the screening control device 300 is authenticated, the screening device 400 corresponding to the lower theater may not be authenticated.

As described above, when authentication is performed on the screening control device 300 and / or the film screening device 400, the movie content transmission is performed as follows.

7 is a flowchart illustrating a movie content transmission process according to an embodiment of the present invention.

When the movie storage unit 330 of the screening control device 300, which is authenticated by the system 100, at any point in time (when a film screening device requests a movie file transmission with a set time point or a lower screening, etc.), the system 100 Request the transmission of the movie file to be screened in the lower theaters managing (S300). In this case, the unique transmission code of the screening control device 300 is included in the file transmission request signal and transmitted.

When the authentication unit 15d of the system 100 transmits the movie content from the screening control device 300, the authentication unit 15d first checks the screening conditions for each film stored in the authentication database 130 based on the unique recognition code of the screening control device. After the search, the screening control device searches for the movies that have been set (S310 to S320). If there is a movie corresponding to a unique identification code of a theater, and / or a movie among the found movies included in the screening validity period (from the screening start date to the screening end date), the screening control device 300 is screened. It is determined that the condition is satisfied.

When the screening condition is satisfied, the movie transmitting unit 15h transmits the movie file corresponding to the movie unique identification code from the movie database 120 to the screening control device 300, and in particular, an encrypted image file for information security. Send (S330). In this case, if the encrypted movie file is not stored, the encrypted movie file may be sent after performing a separate encryption process. Meanwhile, when transmitting an encrypted movie file, the corresponding encryption key may be transmitted together. However, the present invention is not limited thereto, and the encryption key may be transmitted only when the encryption key is requested from the movie screening device 400.

In particular, the system 100 according to an exemplary embodiment of the present invention provides all movie files with the same common encryption key collectively, or transmits movie files to the screening control device 300 and the film screening device 400. An encryption key can be created and assigned to. The encryption key thus granted may be paired with the authentication key, and when the movie is shown later, the movie screening device 400 decrypts the decryption according to the relationship between the encryption key of the movie file and the authentication key previously provided. Can perform the movie.

The screening control device 300 receives the transmitted movie file and stores it in the first movie storage unit 320, and then transfers the stored movie file to the image system on request from the lower image system.

Meanwhile, the movie screening apparatus 400 may directly request a movie file transmission to the system 100. For example, when the movie screening device 400 requests a movie file from the screening control device 300 and the movie file is not in the first movie storage unit 320, the movie screening device 400 may be directly screened without passing through the screening control device 300. You can request a movie file. In this case, the movie file request signal may be transmitted with a unique recognition code of the theater together with a unique recognition code of the theater, or only a unique recognition code of the theater may be transmitted. In addition, when the screening device is a single theater that performs the function of the screening control device, the movie file may be requested directly to the system 100. In this case, only the unique recognition code of the theater is transmitted to the movie file request signal.

In step S310 of FIG. 7, if the file request signal includes a unique recognition code of a specific theater together with a unique recognition code of a theater, the authenticator 15d searches for a screening condition field of movies to identify a unique recognition code of the theater. Next, the system searches for the movies set (S340 to S350), and then finds the movies of which the theater unique recognition code is set among the found movies (S360). If there is a movie corresponding to the unique recognition code of the auditorium, and / or one of the found movies in which the current time is included in the screening validity period, it is determined that the screening condition is satisfied and the corresponding movie file is transmitted (S370). ).

In addition, the screening control device 300 or the film screening device 400 may request a movie file transmission while providing information (eg, a movie title, a film unique identification code, etc.) about a specific film. In this case, the system 100 finds a movie corresponding to the information, searches for a screening condition field corresponding to the movie, and sets the screening control device and / or the film screening device 400, and / or And if the screening validity period is satisfied, the movie file is sent to the system 100 as described above.

As described above, when a movie file is transmitted from the system through various methods, the movie screening is performed as follows based on this.

The movie screening device 400 requests the screening control device 300 to transmit a movie file to be screened in its own theater, and when an encrypted movie file is transmitted from the screening control device 300, the movie screen is stored. Stored in the unit 420. If the requested encrypted movie file is not in the screening control device or the movie screening device is a single theater, the movie file is directly received from the system 100 and stored in the second movie storage unit 420 as described above. .

As the movie file obtained through the various paths is stored in the second movie storage unit 420, the movie screening unit 430 reads the movie file to be screened from the second movie storage unit 420. Decrypt

8 is a flowchart of a movie screening process according to an embodiment of the present invention.

As shown in FIG. 8, the image screening unit 430 of the movie screening apparatus 400 reads the encryption key of the encrypted movie file, and is then stored in the read encryption key and the second authentication requesting unit 410. Decryption is performed based on the authentication key value included in the authentication approval information that was present (S400 to S420). That is, when the encryption key and the authentication key are compared with each other and the two key values are compatible with each other, the encrypted movie file is decrypted (S430 to S440). Specifically, as described above, since the encryption key of a movie file is paired with an authentication key, the same value comparison method that compares two key values as a suitable case and combines the two key values--that is, By combining two key values, we can determine whether two values are mutually fit by using a combination-value comparison method that considers a case where a predetermined predefined result is obtained. In addition, an authentication permission scheme that can be easily used by those skilled in the art may be used.

In particular, while the key value of the encryption key and the authentication key is mutually suitable, if the current time corresponds to the screening validity period of the movie file, the movie is screened by decrypting and driving the encrypted movie file (S450).

Meanwhile, when the movie screening is finished, the log processor 440 records screening log information such as a unique recognition code, a screening start time, a screening end time, and the like in the log file (S460). Since the screening recording in the log file according to an embodiment of the present invention is performed sequentially, if the screening log information is not transmitted to the system 100 due to in-communication or system failure, the previously screened movie may be The screening log information of the movie screened at the present time is recorded together with the screening log information already recorded in the log file.

Next, the log processor 440 determines whether the communication with the system 100 is normal, and when the communication is normally performed, transmits the screening log information (s) recorded in the log file to the system 100 (S470). S480). When the transmission is completed, the screening log information (s) recorded in the log file is deleted. If the communication with the system 100 is not normal, since the screening log information (s) has not been transmitted yet, the screening log information recorded in the log file is maintained without deleting (S500). Then, when the screening of another movie is finished and new log information is generated and transmitted, communication is normally performed or communication is normally performed regardless of the time. 100). If a log of more than a certain number of criteria is accumulated in the log file of the movie screening device 400 due to communication failure for a long time, it may be intentionally unknown through a method such as forcibly deleting the authentication key in the movie screening device 400. It may also prevent the possibility of illegal screening.

Meanwhile, as described above, when the show log information generated by the movie screening in the movie screening apparatus 400 is transmitted, the log recorder 15e of the system 100 receives the received show log information (s) from the log database ( 140) (S510).

At this time, the illegal screening judging unit 15f compares the screening log information for the predetermined movie with the screening conditions of the movie stored in the authentication database 130, and if it does not match, transmits the screening log information. It is determined that the screening device illegally screened the movie. The information on the screening device detected as illegal screening is recorded in the log database 140 (S520 to S530). That is, in response to the screening log information transmitted by the movie screening device, a code indicating illegal screening is additionally recorded. On the other hand, if the screening log information for the predetermined movie and the screening condition of the movie stored in the authentication database 130 is matched, it is determined that the screening is legal (S540).

As described above, the illegal screening is tracked based on the screening log information, thereby preventing the unauthorized screening device from using illegal movie contents.

Although specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. For example, the above-described authentication, movie content transmission, and movie screening process may be implemented in the form of a program stored in a computer-readable recording medium. The recording medium may include any kind of recording device that stores data that can be read by a computer. For example, a CD-ROM, a magnetic tape, a floppy disk, and the like may be used. Included is implemented in the form of).

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

As described above, according to an exemplary embodiment of the present invention, digital movie contents can be easily transmitted to various devices such as theaters and lower theaters through a network.

In particular, by not sending movies to theaters and sub-theatres that are not certified or do not meet the screening conditions, unauthorized use of theaters or sub-theatres that do not have the authority to screen certain films may be prevented.

In addition, when authentication is performed, an authentication key is provided to devices of each theater and theater so that even if a network failure occurs and the online authentication permission is not received from the system, the movie file can be decrypted and displayed using the authentication key. . Therefore, it is possible to prevent the situation that the movie can not be suddenly shown due to network failure.

Claims (15)

In the system that is connected to the movie screening device of the theater screening the movie through the network, the screening control device of the digital theater connected to the movie screening device to control the movie screening, to provide the movie content of the digital theater through the network, A theater database that stores information about a theater and at least one auditorium associated with the theater; A movie database storing a movie file associated with movie content and an encrypted movie file associated therewith; An authentication database for storing system authentication information issued to the theater or lower theater, a movie allowing screening at these theaters and theaters, and screening condition information thereof; The authentication unit performs authentication based on the authentication information stored in the authentication database according to the authentication request from the screening control device or the movie screening device through the network, and generates an authentication key according to the result and provides the device to the corresponding device. If the movie file request satisfies the corresponding screening condition information includes a movie transmitting unit for generating a pair of encryption key corresponding to the encrypted movie file and the authentication key provided to the device to provide to the device; Processing server Including, And a movie content transmitting system in which the encrypted movie file is decrypted according to the combination of the encryption key and the authentication key. The method of claim 1 The processing server A theater registration unit that registers information about a theater and a lower theater in the theater database; A movie registration unit for registering movie related information and a corresponding movie file in the movie database; A movie password processing unit encrypting the movie file and storing the movie file in the movie database; A screening condition register that matches a theater or sub-theater where screening is allowed for a particular film and registers the screening conditions for it in the certification database. Movie content delivery system comprising a. The method according to claim 1 or 2 It further includes a log database that stores the screening log information according to the movie screenings, The processing server A log recorder which receives the film screening log information applied after the screening of the specific film from the apparatus and records the log data in the log database; And Illegal screening determination unit for comparing the screening log information and the screening conditions stored in the authentication database to determine whether the illegal screening Movie content delivery system further comprising. The method of claim 3, The movie screening log information is transmitted from the movie screening device after the end of a particular movie screening, the movie content delivery system including at least one of a unique identification code, the screening start time, the screening end time of the screened movie. The method according to claim 1 or 2 And the movie transmitting unit provides the same encrypted movie file to all devices, and generates an independent encryption key combined with an authentication key provided to one device and provides the same to the corresponding device. In a movie theater device of a digital theater, which is connected to a system for providing movie content through a network, and displays a movie based on the provided movie content, An authentication request unit for requesting authentication for movie content use to the system, and receiving and storing authentication information provided from the system according to the request, wherein the authentication information includes an authentication key; A movie storage unit for receiving and storing an encrypted movie file corresponding to movie contents provided from the system; Receiving a pair of encryption keys corresponding to the authentication key from the system, and combining the encryption key and the authentication key to decrypt the encrypted movie file stored in the movie storage unit to display corresponding movie contents. Movie screening; And When the movie screening is finished, a log processing unit generating movie screening log information including at least one of a unique identification code, a screening start time, and a screening end time of the screened film, and transmitting the film screening log information to the system to report the film screening. Film screening device comprising a. The method of claim 6 The log processing unit Record the movie show log information in the log file, and if the communication with the system is transmitted, the movie show log information transmitted from the log file is deleted after transmitting the movie show log information, the communication with the system is not made If not, the movie screening device for maintaining a record of the movie screening log information in the log file. The method according to claim 6 or 7, The movie screening device, A movie screening device connected to a screening control device of a digital theater for controlling movie screening, and receiving information and a movie file provided from the system through the screening control device. In a system for providing movie content through a network, and a screening control device connected to at least one movie screening device, An authentication request unit for requesting authentication for movie content use to the system, and receiving and storing authentication information provided from the system according to the request, wherein the authentication information includes an authentication key; A movie storage unit receiving and storing a movie file corresponding to movie contents from the system based on the authentication key; And In response to a movie file request from the movie screening apparatus, a movie providing unit which finds a corresponding movie file from the movie storage unit and sends the movie file to the movie screening apparatus. Screening control device comprising a. Movie content of a system that is connected to a movie screening device of a theater that screens movies through a network, and a screening control device of a digital theater that controls movie screening by being connected to a movie screening device to provide movie content of a digital theater through the network. In the delivery method, a) registering theater and theater information and authentication information for authentication processing for each unique identification code for the theater and theater; b) conditions for screening the movie in response to a unique identification code assigned to each piece of movie content to be provided, wherein the screening condition includes at least one of a theater and a theater, a screening period, and the number of screenings of the film. Registering; c) performing authentication based on the registered authentication information according to an authentication request from the screening control device of the theater or the film screening device of the theater, and generating an authentication key and providing the device to the device when the authentication is authenticated; d) When a movie file request from the screening control device of the certified theater or the movie screening device of the theater is input, the screening condition set by the movie content is searched for and the movie content having the screening condition satisfies the theater or the theater. Finding; And e) encrypting the movie file of the found movie content and providing the movie file to the screening control device or the movie screening device of the theater, and pairing an encryption key paired with the authentication key provided to the device to the movie file. Include and send Including, Wherein the authentication key and encryption key are used to decrypt the encrypted movie file at each device. The method of claim 10 Receiving screening log information provided from the movie screening device in response to a specific screening end of the screen, wherein the screening log information includes at least one of a unique identification code, a screening start time, and a screening end time of the film; Comparing the screening conditions stored for each movie content with the received screening log information; Determining that the movie screening of the movie screening apparatus is legal when the screening log information satisfies the screening condition; Determining that the screening of the movie screening apparatus is illegal when the screening log information does not satisfy the screening condition, and recording an illegal screening for the screening apparatus. Movie content transmission method further comprising. delete The method of claim 10 The movie screening apparatus determines whether there is a movie file to be screened therein, and if there is no movie file, the movie file from the system or the screening control device, wherein the movie file is encrypted and includes an encryption key. Receiving a step; And Comparing the authentication key provided from the system and the encryption key of the movie file, if the two keys satisfy a predetermined relationship, and the current time corresponds to the screening validity period of the movie file, the encrypted movie file is decrypted and displayed. step Movie content transmission method further comprising. The method of claim 10, The movie screening device When the movie screening is finished, recording show screening information of the movie in a log file; When the communication with the system is made, transmitting the screening log information to the system and deleting the transmitted screening log information from the log file; Maintaining the screening log information as recorded in a log file if communication with the system is not established. Movie content transmission method further comprising. A computer-readable recording medium storing a program for executing the method according to any one of claims 10, 11, 13, and 14.

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