JP6331318B2 - Information processing apparatus and program - Google Patents

Description

  The present invention relates to an information processing apparatus and a program.

  DLNA (Digital Living Network Alliance) authentication is known as a technique for enabling content data such as still image data, moving image data, and music data to be played back with other devices. In DLNA authentication, whether or not a device satisfies a function required by DLNA is checked by a certification authority, and if it satisfies, it can be announced as a device that has acquired DLNA authentication.

  There are multiple acquisition methods for DLNA authentication. For example, when the device is a projector, DLNA authentication can be acquired with one or more patterns among three patterns of still image projection, moving image projection, and audio output. As described above, when DLNA authentication is acquired in a certain pattern, it is necessary to satisfy the functions required by the pattern.

  However, in the conventional technology, there is a case in which desired authentication cannot be acquired because the unintended content data is output (reproduced) and does not satisfy the functional requirements required for acquiring authentication.

  The present invention has been made in view of the above, and an object of the present invention is to provide an information processing apparatus and program capable of appropriately outputting data required for obtaining authentication and the like.

In order to solve the above-described problems and achieve the object, the present invention desires to obtain a file information storage unit that stores one or more file information respectively corresponding to one or more files, and according to a user's specification. A setting unit for setting an authentication mode indicating whether to apply authentication, and when the authentication mode is a specific value indicating that the authentication is applied , file information to be displayed among the file information is determined. It comprises a determination unit and an output control unit that controls to display file information determined to be displayed.

  According to the present invention, it is possible to appropriately output data required for obtaining authentication or the like.

FIG. 1 is a diagram illustrating a hardware configuration example of a system including an information processing apparatus according to the present embodiment. FIG. 2 is a block diagram illustrating a functional configuration example of the projector. FIG. 3 is a diagram illustrating an example of a data structure of file information. FIG. 4 is a sequence diagram illustrating an example of an outline of data communication processing. FIG. 5 is a sequence diagram illustrating an example of detailed data communication processing. FIG. 6 is a sequence diagram illustrating an example of a setting process for setting the authentication mode. FIG. 7 is a flowchart illustrating an example of the determination process according to the present embodiment. FIG. 8 is a diagram for explaining an example of the determination method. FIG. 9 is a sequence diagram illustrating an example of a data communication process according to a modification.

  Exemplary embodiments of an information processing apparatus and a program according to the present invention will be explained below in detail with reference to the accompanying drawings. Hereinafter, a case where a projector (image projection apparatus) is applied to an information processing apparatus will be described as an example. Applicable devices are not limited to projectors.

  As described above, in the conventional technique, it is determined that the function required for obtaining the authentication is not satisfied due to the reproduction of the unintended content data, and the desired authentication may not be obtained. For example, even if it is desired to acquire DLNA authentication only by still image projection, there is a case where authentication cannot be acquired depending on a moving image data reproduction function of the device. For example, if moving image data to which information indicating compliance with DLNA is added cannot be reproduced in any format, DLNA authentication cannot be obtained only by still image projection. However, if the device has a function to play back if it is a supported moving image format, this condition is not satisfied, and thus DLNA authentication cannot be obtained only by still image projection. This situation can occur when it is desired to obtain DLNA authentication with only still image projection because it does not have sufficient performance to play some video formats.

  The information processing apparatus according to the present embodiment is provided with an authentication mode, and when the authentication mode is set to be valid, only the data required for authentication desired to be acquired can be output (reproduced). As a result, it is possible to appropriately output data required for obtaining authentication. If the authentication mode is set to invalid, arbitrary data can be output. Thereby, it is possible to further output data that can be output according to the performance of the information processing apparatus.

  FIG. 1 is a diagram illustrating a hardware configuration example of a system including an information processing apparatus according to the present embodiment. As shown in FIG. 1, the system according to the present embodiment has a configuration in which a projector 100 as an information processing apparatus and a server 200 are connected via a network 300.

  The network 300 can adopt any network form. For example, the network 300 can be realized by a wireless LAN (local area network), a mobile phone network (3G, LTE, etc.) and the like.

  The projector 100 is a device that projects an image. Server 200 is a device that transmits an image projected by projector 100. The server 200 can be any device such as a PC (Personal Computer) and NAS (Network Attached Storage) as long as the device conforms to a predetermined authentication standard (for example, DLNA).

  The projector 100 includes a communication unit 110, an operation unit 120, a display unit 130, a projection unit 140, a storage unit 150, and a control unit 160 as main hardware configurations.

  The communication unit 110 communicates with an external device such as the server 200 via the network 300. The communication unit 110 can be realized by a wireless communication device such as a wireless LAN base unit, for example.

  The operation unit 120 inputs various operations and can be realized by an input device such as a key switch or a touch panel.

  The display unit 130 displays various screens and can be realized by a display device such as a liquid crystal display or a touch panel display.

  Projection unit 140 projects an image onto a projection medium such as a screen (not shown). The projection unit 140 can be realized by a projection optical system such as a projection lens. The image projected by the projection unit 140 is arbitrary. For example, the projection unit 140 may project content data, or may project information similar to information displayed on the display unit 130 (such as a list of file information).

  The storage unit 150 stores various programs executed by the projector 100, data used for various processes performed by the projector 100, and the like. The storage unit 150 is realized by a magnetic, optical, or electrical storage device such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), a memory card, an optical disk, and a RAM (Random Access Memory). it can.

  Control unit 160 controls each unit of projector 100. The control unit 160 can be realized by a control device such as a CPU (Central Processing Unit).

  The bus 170 connects each unit such as the communication unit 110, the operation unit 120, the display unit 130, the projection unit 140, the storage unit 150, and the control unit 160.

  The server 200 includes a communication unit 210, an operation unit 220, a display unit 230, a storage unit 240, and a control unit 250 as main hardware configurations.

  The communication unit 210 communicates with an external device such as the projector 100 via the network 300. The communication unit 210 can be realized by a wireless communication device such as a wireless LAN handset.

  The operation unit 220 inputs various operations and can be realized by an input device such as a mouse or a touch panel.

  The display unit 230 displays various screens and can be realized by a display device such as a liquid crystal display or a touch panel display.

  The storage unit 240 stores various programs executed by the server 200, data used for various processes performed by the server 200, and the like. The storage unit 240 can be realized by a storage device that can store magnetically, optically, or electrically, such as an HDD, an SSD, a memory card, an optical disk, and a RAM.

  The control unit 250 controls each unit of the server 200. The control unit 250 can be realized by a control device such as a CPU, for example. The control unit 250 transmits a connection request to the projector 100, establishes a network connection with the projector 100, and disconnects the network connection. Control unit 250 transmits data to projector 100 and causes projector 100 to project an image based on the data.

  The bus 260 connects each unit such as the communication unit 210, the operation unit 220, the display unit 230, the storage unit 240, and the control unit 250.

  FIG. 2 is a block diagram illustrating a functional configuration example of the projector 100. As shown in FIG. 2, the projector 100 includes a management unit 401, a setting unit 402, a communication control unit 403, a determination unit 404, an output control unit 405, a notification unit 406, a mode storage unit 421, and a file. An information storage unit 422.

  The mode storage unit 421 stores the authentication mode. The authentication mode is information indicating whether to apply the acquired authentication (for example, DLNA authentication). In the authentication mode, for example, “valid” that is a value (specific value) indicating that authentication is applied and “invalid” that is a value that indicates that authentication is not applied are set.

  The file information storage unit 422 stores one or more file information respectively corresponding to one or more files. A file is an example of a unit for managing content data such as still image data, moving image data, and music data. The file information includes information for identifying each file (file name and the like), file attributes, and the like. The file attribute is information indicating whether or not a DLNA tag is added, for example. These are merely examples, and other information may be included in the file information. FIG. 3 is a diagram illustrating an example of a data structure of file information. In the example of FIG. 3, the file information includes a file name and presence / absence of a DLNA tag.

  Returning to FIG. 2, the management unit 401 controls processing such as acquisition of a list of file information from the server 200 and determination of file information to be displayed.

  The setting unit 402 sets an authentication mode in accordance with user designation. For example, the setting unit 402 accepts an authentication mode (valid or invalid) designated by the user using the operation unit 120 and saves the accepted authentication mode in the mode storage unit 421 to set the authentication mode.

  The communication control unit 403 controls communication with an external device (such as the server 200). For example, the communication control unit 403 controls processing for receiving file information from the server 200 via the communication unit 110.

  The determination unit 404 determines file information to be displayed among the file information stored in the file information storage unit 422 when the set authentication mode is a specific value (for example, “valid”). The file information to be displayed is file information that is displayed on the display unit 130 so that the user can select, for example, a target to instruct projection. For example, the determination unit 404 determines whether or not a file corresponding to the file information can be output by the projector 100. If the file can be output, the determination unit 404 determines to display the file information corresponding to the file.

  The output control unit 405 controls the output of various information to the display unit 130 and the like. For example, the output control unit 405 controls the display unit 130 to display the file information determined to be displayed.

  The notification unit 406 notifies that a file for which output (projection by the projection unit 140 or the like) is requested cannot be output. For example, the notification unit 406 displays information indicating that the file cannot be output on the display unit 130. In this case, the function of the notification unit 406 may be provided in the output control unit 405. The notification method by the notification unit 406 is not limited to this, and notification may be performed by outputting sound from a sound output unit (speaker or the like) (not shown).

  Note that the mode storage unit 421 and the file information storage unit 422 can be realized by, for example, the storage unit 150 of FIG. Each unit of the management unit 401, the setting unit 402, the communication control unit 403, the output control unit 405, and the determination unit 404 starts (executes) a program stored in the storage unit 150 by the control unit 160 (CPU), for example. It may be realized as software. Some or all of these units may be realized by a hardware circuit.

  A program executed by the information processing apparatus of this embodiment is provided by being incorporated in advance in a ROM or the like.

  The program executed by the information processing apparatus of the present embodiment is a file in an installable format or an executable format, and is a computer such as a CD-ROM, a flexible disk (FD), a CD-R, or a DVD (Digital Versatile Disk). The program may be recorded on a readable recording medium and provided as a computer program product.

  Furthermore, the program executed by the information processing apparatus of the present embodiment may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. Further, the program executed by the information processing apparatus of the present embodiment may be configured to be provided or distributed via a network such as the Internet.

  The program executed by the information processing apparatus according to the present embodiment has a module configuration including the above-described units. As actual hardware, the CPU (processor) reads out the program from the ROM and executes the program. Are loaded on the main storage device, and the above-described units are generated on the main storage device.

  Next, data communication between the projector 100 and the server 200 will be described. FIG. 4 is a sequence diagram illustrating an example of an outline of data communication processing according to the present embodiment.

  When the user instructs to display a list of file information using the operation unit 120 or the like, the projector 100 receives this instruction (step S101). In response to the instruction, projector 100 requests server 200 to obtain a list of file information (step S102). The server 200 transmits a list of file information to the projector 100 in response to the request (step S103). The projector 100 displays at least a part of the received file information (step S104). Details of the process for determining the file information to be displayed will be described later. Thereafter, the user can select desired file information from the displayed file information, and can request the projector 100 to project an image (step S105). When the content information is not included in the file information, the projector 100 acquires content data corresponding to the file information from the server 200 and projects an image of the acquired content data.

  FIG. 5 is a sequence diagram illustrating an example of detailed data communication processing. When the user instructs to display a list of file information, the output control unit 405 of the projector 100 accepts this instruction (list acquisition request) (step S201). The output control unit 405 requests the management unit 401 to obtain a file list (step S202). The management unit 401 requests the server 200 to acquire file information (file list) via the communication control unit 403 (steps S203 and S204).

  Upon receiving the request, the server 200 transmits file information corresponding to files such as still image data and moving image data stored in the own apparatus to the projector 100 (step S205). For example, the server 200 transmits file information corresponding to a file that can be transmitted based on DLNA to the projector 100.

  Upon receiving the file information from the server 200, the communication control unit 403 of the projector 100 transmits the file information to the management unit 401 (Step S206). The management unit 401 stores the received file information in the file information storage unit 422 (step S207). The management unit 401 reads the authentication mode from the mode storage unit 421 (Step S208, Step S209). The management unit 401 transmits the read authentication mode to the determination unit 404, and requests the determination unit 404 to determine the file information to be displayed (step S210). The determination unit 404 transmits the result of determination processing (details will be described later) to the management unit 401 (step S211).

  The management unit 401 transmits file information (list of file information) determined to be displayed by the determination process to the output control unit 405 (step S212). The output control unit 405 displays the transmitted file information on the display unit 130 (step S213).

  Thereafter, the user can select desired file information from the displayed file information, and can request the projector 100 to project an image (step S214).

  The authentication mode may be stored in the mode storage unit 421 at an arbitrary timing. For example, the setting unit 402 may save the designated authentication mode in the mode storage unit 421 before the data communication process. The setting unit 402 may change the authentication mode according to the designation after the projection of the image data is started. FIG. 6 is a sequence diagram illustrating an example of a setting process for setting the authentication mode.

  When the user instructs setting of the authentication mode from, for example, a setting screen displayed on the display unit 130, the setting unit 402 receives this instruction (step S301). The setting unit 402 sets (saves) the designated authentication mode in the mode storage unit 421 in accordance with the received instruction (step S302).

  Next, details of the determination process in step S210 of FIG. 5 will be described. FIG. 7 is a flowchart illustrating an example of the determination process according to the present embodiment.

  The determination unit 404 determines whether or not the authentication mode is set to “valid” (step S401). When the authentication mode is “valid” (step S401: Yes), the determination unit 404 confirms the tag information of the file (step S402) and determines whether the file is a display target (step S403). The file tag information is obtained from the file information received from the server 200, for example. In the example of FIG. 3, the DLNA tag corresponds to tag information.

  Note that the determination method for determining whether a file is a display target file, that is, a reproducible file, is not limited to the method using tag information, and any method can be applied. When tag information (DLNA tag) is used, the determination unit 404 determines, for example, that a file to which a DLNA tag is added (a file with a DLNA tag = present) is a file to be displayed.

  FIG. 8 is a diagram for explaining an example of the determination method. In FIG. 8, for each file name, a determination method using tag information (DLNA tag), a determination method using a file extension, a determination method by analyzing a file, and an image type (still image or moving image) An example of a determination result when each of the determination methods is used is shown.

  For example, in the determination method using the DLNA tag, the determination unit 404 determines that reproduction is not possible when the file has DLNA tag = “Yes” in the moving image data, and determines that reproduction is possible otherwise. Thereby, even if it is a case where the file information of the moving image data to which the DLNA tag was attached | subjected from the server 200, it can avoid that this moving image data is reproduced | regenerated. Even if the device has a function of playing back a supported moving image format, DLNA authentication can be obtained only by still image projection.

  In the determination method using an extension, the determination unit 404 determines that playback is possible when the extension is “jpg” or “mpg”, and determines that playback is not possible when the extension is “mp4”. In the determination method using the extension, for example, the processing load for determination can be reduced as compared with a determination method by structural analysis described below.

  In the determination method based on the structure analysis, the determination unit 404 obtains information for determining image quality such as a bit rate, a resolution, and a frame rate when an image is reproduced, for example, by analyzing a file header or the like. The determination unit 404 refers to the performance of the projector and determines whether or not the image data of the file can be reproduced so as to satisfy the image quality. In FIG. jpg and file B. An example is shown in which it is determined that mpg can be reproduced but other files cannot be reproduced. In the determination method based on the structural analysis, detailed information obtained by the analysis is used, so that the determination can be performed more accurately. In the case of the determination method by analyzing a file, the file to be analyzed is acquired from the server 200. The acquisition timing is arbitrary. For example, the projector 100 may access the server 200 and acquire a file when it is necessary for the determination in the determination process as shown in FIG. The projector 100 may be configured to acquire a file together with the file information (included in the file information), store the file in the file information storage unit 422 and the like, and use the determination process.

  In the determination method based on the type of image, the determination unit 404 determines that playback is possible when it is a still image, and determines that playback is not possible when it is a moving image.

  The determination unit 404 may be configured to perform determination using a determination method designated by a user or the like among a plurality of determination methods. Thereby, the user's convenience can be improved. As a determination method, for example, a method capable of determining that data (file) required by authentication desired to be acquired (DLNA authentication or the like) can be reproduced may be adopted. As a result, it is possible to appropriately output data required for obtaining authentication.

  Returning to FIG. 7, as a result of the determination process, when it is determined that the file is a display target (step S403: Yes), the determination unit 404 sets the corresponding file as a display target (step S404). When it is determined that the file is not a display target (step S403: No), the determination unit 404 executes step S405 without setting the corresponding file as a display target.

  In step S405, the determination unit 404 determines whether all files have been processed (step S405). For example, the determination unit 404 determines that all files corresponding to the file information received from the server 200 are to be processed, and whether all the files to be processed have been processed.

  If all the files have not been processed (step S405: No), the determination unit 404 returns to step S402 and repeats the process for the next file. When all the files have been processed (step S405: Yes), the determination unit 404 outputs the file to be displayed as a determination result (step S406). When it is determined in step S401 that the authentication mode is not “valid”, that is, “invalid” (step S401: No), the determination unit 404 outputs a determination result indicating that all files are display targets. (Step S407).

  The execution timing of the determination process in FIG. 7 is not limited to the timing in step S210 in FIG. For example, after the image is projected (for example, after step S214 in FIG. 5), the process from the determination process to the file list display (step S210 to step S213) may be executed when the setting of the authentication mode is changed. . As a result, the file list in which the display target is filtered according to the authentication mode before the change can be updated to the file list in which the display target is newly filtered in accordance with the change in the authentication mode.

  Through the processing as described above, the information processing apparatus (projector 100) of the present embodiment can output (reproduce) only data required for authentication desired to be acquired when the authentication mode is set to be valid. As a result, it is possible to appropriately output data required for obtaining authentication. On the other hand, the information processing apparatus according to the present embodiment can output arbitrary data when the authentication mode is set to invalid. Thereby, for example, even data that is restricted by the acquired authentication can be output according to the user's specification.

(Modification)
In the above embodiment, the file information to be displayed is determined for a plurality of file information acquired from the server 200. A plurality of file information acquired from the server 200 is displayed, and when the reproduction (projection etc.) of the file corresponding to any file information is designated from the displayed file information, the designated file can be reproduced. It may be determined.

  In the modified example, when the authentication mode is a specific value, the determination unit 404 determines whether or not a file corresponding to the specified file information can be output among the one or more file information. The output control unit 405 controls to output (reproduce) a file that is determined to be output.

  FIG. 9 is a sequence diagram showing an example of data communication processing by the projector 100 according to the modified example configured as described above. Steps S501 to S507 are the same as steps S201 to S207 in FIG.

  In the modification, the management unit 401 transmits the received file information to the output control unit 405 (step S508). For example, the management unit 401 transmits all file information received from the server 200. The output control unit 405 displays the transmitted file information on the display unit 130 (step S509).

  Thereafter, the user can select desired file information from the displayed file information, and can request the projector 100 to project an image. When the output control unit 405 receives a user request (step S510), the output control unit 405 reads the authentication mode from the mode storage unit 421 (steps S511 and S512). The output control unit 405 transmits the read authentication mode to the determination unit 404, and requests the determination unit 404 to determine whether or not the file can be displayed (playback propriety) (step S513). The determination unit 404 transmits the result of the determination process to the management unit 401 (step S514).

  The determination process is the same as in FIG. 7, but the file to be determined is the file specified by the user or the like in step S510. When a plurality of files are specified, the determination process may be executed for each file.

  When it is determined that reproduction is possible, the output control unit 405 controls the projection unit 140 to project image data corresponding to the designated file. When it is determined that reproduction is not possible, the output control unit 405 may request the notification unit 406 to notify that reproduction is not possible (projection is impossible) (step S515).

  In the above embodiment (FIG. 5 and the like), only file information of files determined to be reproducible is displayed as a list. For this reason, for example, a file that the user desires to project may be determined to be unplayable, and a list may not be displayed, and the reason why the file may not be displayed may be unknown. On the other hand, in the modified example, a list of all file information can be displayed to the user regardless of the presence or absence of tag information (DLNA tag), for example. Even if it is determined that the designated file cannot be reproduced, it is possible to notify the user to that effect.

DESCRIPTION OF SYMBOLS 100 Projector 110 Communication part 120 Operation part 130 Display part 140 Projection part 150 Storage part 160 Control part 200 Server 210 Communication part 220 Operation part 230 Display part 240 Storage part 250 Control part 300 Network 401 Management part 402 Setting part 403 Communication control part 404 Determination unit 405 Output control unit 406 Notification unit 421 Mode storage unit 422 File information storage unit

JP2013-117949A

Claims (12)

A file information storage unit that stores one or more pieces of file information respectively corresponding to one or more files;
A setting unit for setting an authentication mode indicating whether or not to apply authentication desired to be acquired according to a user's specification;
A determination unit that determines file information to be displayed out of the file information when the authentication mode is a specific value indicating that the authentication is applied ;
An output control unit for controlling to display file information determined to be displayed;
An information processing apparatus comprising: The determination unit determines whether or not a file corresponding to the file information can be output by the information processing apparatus, and determines to display the file information corresponding to a file that can be output;
The information processing apparatus according to claim 1. The determination unit determines whether a file corresponding to the file information can be output by the information processing apparatus using an extension of the file;
The information processing apparatus according to claim 2. The determination unit determines whether the file corresponding to the file information can be output by the information processing apparatus by analyzing the file;
The information processing apparatus according to claim 2. The determination unit determines whether a file corresponding to the file information can be output by an output method authenticated to the information processing apparatus;
The information processing apparatus according to claim 2. The determination unit is a specified determination among a plurality of determination methods including at least a determination method that uses an extension of a file, a determination method that analyzes a file, and a determination method that determines whether output is possible using an authenticated output method Determining whether a file corresponding to the file information can be output by the information processing apparatus by a method;
The information processing apparatus according to claim 2. The determination unit, wherein when the authentication mode is not the specific value, it is determined that displaying the file information stored in the file information storage unit,
The information processing apparatus according to claim 1. The setting unit changes the setting of the authentication mode according to the user's specification,
The determination unit changes the file information determined to be displayed according to the changed authentication mode,
The output control unit controls to display the changed file information;
The information processing apparatus according to claim 7. A file information storage unit that stores one or more pieces of file information respectively corresponding to one or more files;
A setting unit for setting an authentication mode indicating whether or not to apply authentication desired to be acquired according to a user's specification;
A determination unit that determines whether or not a file corresponding to the specified file information among the file information can be output when the authentication mode is a specific value indicating that the authentication is applied ;
An output control unit that controls to output a file determined to be output;
An information processing apparatus comprising: A notification unit for notifying that output is not possible when the determination unit determines that the file corresponding to the file information cannot be output by the information processing apparatus;
The information processing apparatus according to claim 9. Computer
A file information storage unit that stores one or more pieces of file information respectively corresponding to one or more files;
A setting unit for setting an authentication mode indicating whether or not to apply authentication desired to be acquired according to a user's specification;
A determination unit that determines file information to be displayed out of the file information when the authentication mode is a specific value indicating that the authentication is applied ;
An output control unit for controlling to display file information determined to be displayed;
Program to function as. Computer
A file information storage unit that stores one or more pieces of file information respectively corresponding to one or more files;
A setting unit for setting an authentication mode indicating whether or not to apply authentication desired to be acquired according to a user's specification;
A determination unit that determines whether or not a file corresponding to the specified file information among the file information can be output when the authentication mode is a specific value indicating that the authentication is applied ;
An output control unit that controls to output a file determined to be output,
Program to function as.

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