JP2020178337A - Information output system, reception terminal, reception method, and computer program - Google Patents

Abstract

To switch an output between multiple pieces of information more quickly and smoothly.SOLUTION: An information distribution system 1 includes: a plurality of sub-cameras 5 to 9 that capture moving images; a plurality of sub-camera servers 12 to 16 that are associated with the respective sub-cameras 5 to 9, input the moving images captured by the respective sub-cameras 5 to 9, and transmit the moving images; and a reception terminal 30 including a communication unit 32 that receives two moving images transmitted by two sub-camera servers, an image data buffer 50 including two buffer units that are provided correspondingly to the two moving images received by the communication unit 32 and temporarily store and output the moving images, an image switching processing unit 62 that switches to one buffer unit of the two buffer units based on setting information and outputs the moving image from the one buffer unit, and a touch panel unit 40 that outputs the moving image output from the one buffer.SELECTED DRAWING: Figure 4

Description

The present invention relates to a technique for distributing information such as voice and images.

Conventionally, there are many techniques for distributing information such as voice and images (Patent Document 1).

JP-A-2014-157464

An object of the present invention is to switch an output between a plurality of pieces of information more quickly and smoothly.

In order to solve the above-mentioned problems, in the first aspect of the present invention, N acquisition means for acquiring information on either moving image or audio and N acquisition means associated with the N acquisition means, respectively. N servers to which video or audio information acquired by the acquisition means is input and transmit the information, and a plurality of information transmitted by (N-1) or less of the N servers. Among the plurality of storage means based on the receiving means for receiving, the plurality of storage means provided corresponding to the plurality of information received by the receiving means, and the plurality of storage means for temporarily storing and outputting the plurality of information, and the setting information. Information output having a switching means for switching to one storage means and outputting information from the storage means, and a receiving terminal having an output means for outputting moving images or audio based on the information output from the one storage means. It is a system.

In the second aspect of the present invention, it is preferable that the setting information is information input by the user of the receiving terminal by operating the receiving terminal.

In the third aspect of the present invention, the setting information is information in which the user of the receiving terminal specifies information other than the information temporarily stored by the plurality of storage means, and the N servers. Of the above, one server that transmits the information specified by the user transmits the information, and one storage means that stores information having a low priority among the plurality of storage means has the priority. The low information is switched to the information transmitted from the one server and received via the receiving means and temporarily stored, and the switching means switches to the information temporarily stored by the one storage means and outputs the information. Is preferable.

In the fourth aspect of the present invention, one storage means for storing low-priority information is a storage means for storing information having a low output frequency from the output means among the plurality of storage means. Is preferable.

In order to solve the above problems, a fifth aspect of the present invention is a receiving means for receiving information on either one of a plurality of moving images or sounds transmitted by a plurality of servers, and a plurality of information received by the receiving means. A plurality of storage means that are provided in response to the above and temporarily store and output the plurality of information, and a storage means that is switched to one of the plurality of storage means based on the setting information to store information from the storage means. It is a receiving terminal having a switching means for outputting and an output means for outputting moving images or audio based on the information output from the one storage means.

In order to solve the above problems, a sixth aspect of the present invention is a receiving step of receiving information on either one of a plurality of moving images or audio transmitted by a plurality of servers, and a plurality of information received in the receiving step. A storage step of temporarily storing the plurality of information in each of the plurality of storage means provided in response to the above, and switching to one of the plurality of storage means based on the setting information from the storage means. It is a receiving method including a switching step of outputting information and an output step of outputting moving images or audio based on the information output from the one storage means.

In order to solve the above problems, a seventh aspect of the present invention includes a receiving step in which the receiving means receives information on either one of a plurality of moving images or voices transmitted by a plurality of servers, and a plurality of storing means. The storage step of temporarily storing the plurality of information in each of the plurality of storage means provided corresponding to the plurality of information received in the reception step, and the switching means are one of the plurality of storage means. The computer is made to execute a switching step of switching to the storage means of the above and outputting information from the storage means, and an output step of the output means outputting a moving image or audio based on the information output from the one storage means. It is a computer program.

According to the first and fifth aspects of the present invention, the receiving terminal receives a plurality of information transmitted by the plurality of servers, temporarily stores the plurality of information, and switches the plurality of information. By being able to output the information of, the output can be switched between multiple pieces of information more quickly.

According to the second aspect of the present invention, the receiving terminal can output one piece of information in response to a user's request.

According to the third aspect of the present invention, the receiving terminal can switch the output of high-priority information while outputting information that has not yet been received and has not been stored in the storage means, as specified by the user. You can get ready to do it faster.

According to the fourth aspect of the present invention, the receiving terminal can keep the information having a high output frequency from the output means stored in the storage means, and can switch the information having a high output frequency from the output means. Can be done faster.

According to the sixth aspect of the present invention, the receiving method receives a plurality of information transmitted by a plurality of servers, temporarily stores the plurality of information, and switches the plurality of information to obtain one piece of information. By being able to output, it is possible to switch the output between multiple pieces of information faster.

According to the seventh aspect of the present invention, the computer program receives a plurality of information transmitted by a plurality of servers, temporarily stores the plurality of information, and switches the plurality of information to obtain one piece of information. By being able to output, it is possible to switch the output between multiple pieces of information faster.

FIG. 1 is a block diagram showing a configuration example of an information distribution system. FIG. 2 is a block diagram showing a configuration example of a receiving terminal. FIG. 3 is a block diagram showing a configuration example of an image data buffer. FIG. 4 is a block diagram showing a configuration example of the processing unit. FIG. 5 is a flowchart showing an example of request transmission processing. FIG. 6 is a flowchart showing an example of buffer processing. FIG. 7 is a flowchart showing another example of buffer processing. FIG. 8 is a flowchart showing still another example of buffer processing. FIG. 9 is a flowchart showing an example of the image switching process. FIG. 10 is a flowchart showing an example of a camera image transmission process in the sub camera server. FIG. 11 is a diagram showing an example of display on the touch panel unit. FIG. 12 is a diagram showing a display example on the touch panel unit on which the sub camera image selection window is displayed. FIG. 13 is a diagram mainly for explaining the crossfade process.

An embodiment of the present invention will be described with reference to the drawings.
In this embodiment, an information distribution system is mentioned.

(Constitution)

FIG. 1 is a block diagram showing a configuration example of the information distribution system 1.

As shown in FIG. 1, the information distribution system 1 includes a dummy head microphone 2, a PA (Public Address) via microphone 3, a main camera 4, a plurality of sub cameras 5, 6, 7, 8, 9, and a voice server 10. It has a main camera server 11, a plurality of sub camera servers 12, 13, 14, 15, 16, and a receiving terminal 30. The microphones 2 and 3 and the cameras 4 to 9 are connected wirelessly or by wire so as to be able to transmit data to the servers 10 to 16 provided corresponding to the microphones 2 and 3 and the cameras 4 to 9. ing. Here, the dummy head microphone 2 and the PA via microphone 3 transmit the input voice data to the voice server 10. The main camera 4 captures a moving image for the main channel output on the receiving terminal 30 side, and transmits the image data of the captured moving image to the server 11 for the main camera. Sub-camera servers 12 to 16 are connected to the sub-cameras 5 to 9 corresponding to the respective sub-cameras 5 to 9. Each of the sub-cameras 5 to 9 captures a moving image for a sub-channel output on the receiving terminal 30 side, and transmits the image data of the captured moving image to the corresponding sub-camera servers 12 to 16. For example, microphones 2 and 3 and cameras 4 to 9 are appropriately installed at various locations in the concert venue. The voice server 10 appropriately processes the voice data from the microphones 2 and 3 and transmits the voice data to the receiving terminal 30 via the communication means. Further, the main camera server 11 and the sub camera servers 12 to 16 also appropriately process the image data from the cameras 4 to 9 and transmit the image data to the receiving terminal 30 via the communication means. For example, the communication means is an internet line connected wirelessly or by wire.

In the information distribution system 1, the user can select and view the images of the main camera 4 and the sub cameras 5 to 9 transmitted via the servers 11 to 16 for each camera on the receiving terminal 30.

The receiving terminal 30 is a portable communication terminal, and is a mobile phone such as a tablet or a smartphone. In the following, a case where the receiving terminal 30 is a mobile phone will be described as an example.

FIG. 2 is a block diagram showing a configuration example of the receiving terminal 30.

As shown in FIG. 2, the receiving terminal 30 includes a mobile communication unit 31, a communication unit 32, a touch panel unit 40, a speaker 33, a microphone 34, a camera 35, an image data buffer 50, an audio data buffer 36, and a storage unit 37. , And a processing unit 60. Here, the mobile communication unit 31 functions as a device for performing telephone communication. The communication unit 32 communicates with a device such as a server via an internet line or the like by wire or wirelessly. The touch panel unit 40 has an image display unit 41 that is responsible for the image display function of the touch panel unit 40, and a contact detection unit 42 that is responsible for the information input function of the touch panel unit 40. In the present embodiment, the user can select a favorite image from the images transmitted via the plurality of camera servers 11 to 16 by the touch panel unit 40 and view the images by the touch panel unit 40. The image data buffer 50 temporarily stores image data. The voice data buffer 36 temporarily stores voice data. The storage unit 37 is, for example, a ROM, a RAM, or the like. The processing unit 60 executes various processes in the receiving terminal 30. The processing unit 60 includes, for example, a microcomputer and its peripheral circuits, and is composed of, for example, a CPU, a ROM, a RAM, and the like. One or more programs are stored in the ROM. The CPU executes various processes according to one or more programs stored in the ROM. Then, the processing unit 60 executes various processes according to various data and various programs stored in the storage unit 37, if necessary. For example, the program 37a stored in the storage unit 37 is an application program.

FIG. 3 is a block diagram showing a configuration example of the image data buffer 50.

As shown in FIG. 3, the image data buffer 50 includes a main channel image buffer unit 51, a first sub-channel image buffer unit 52, and a second sub-channel image buffer unit 53. Here, the main channel image buffer unit 51 temporarily stores (stores) image data (hereinafter, referred to as a main camera image) from the main camera 4 transmitted from the main camera server 11 as a main channel image. To do. Image data (hereinafter referred to as a sub-camera image) from two sub-cameras out of the five sub-cameras 5 to 9 is transmitted to the receiving terminal 30 via the sub-camera server, and the first The sub-channel image buffer unit 52 temporarily stores (stores) one of the two sub-camera images as a sub-channel image. Then, the second sub-channel image buffer unit 53 temporarily stores (stores) the other sub-camera image of the two sub-camera images as a sub-channel image.

In the following description, when the main camera image and the sub camera image are not distinguished, they are simply referred to as camera images. When the main channel image and the sub channel image are not distinguished, it is simply called a channel image. When the main channel image buffer unit 51, the first sub-channel image buffer unit 52, and the second sub-channel image buffer unit 53 are not distinguished, they are simply referred to as channel image buffer units.

FIG. 4 is a block diagram showing a configuration example of the processing unit 60.

As shown in FIG. 4, the processing unit 60 includes a buffer processing unit 61, an image switching processing unit 62, an audio image synchronization processing unit 63, and a request transmission processing unit 64. Here, the buffer processing unit 61 executes buffer processing for writing and reading data to the audio data buffer 36 and the image data buffer 50. The image switching processing unit 62 is one of the cameras of each camera image temporarily stored in the main channel image buffer unit 51, the first sub-channel image buffer unit 52, and the second sub-channel image buffer unit 53. Executes image switching processing that switches to an image and outputs it. The image switching processing unit 62 executes the image switching processing in cooperation with the buffer processing unit 61. The audio image synchronization processing unit 63 executes a synchronization process for synchronizing the camera image switched and output by the image switching processing unit 62 with the audio data output from the audio data buffer 36. For example, the audio image synchronization processing unit 63 synchronizes and outputs the camera image and the audio data based on the time information added to each of the camera image and the audio data. By this output, images and sounds are synchronizedly output from the touch panel unit 40 and the speaker 33. The request transmission processing unit 64 executes a request transmission process for transmitting and outputting various requests to the buffer processing unit 61, the image switching processing unit 62, and the sub-camera servers 12 to 16 in response to the user's operation on the receiving terminal 30. To do.

FIG. 5 is a flowchart showing an example of request transmission processing.

As shown in FIG. 5, first, as the process of step S1, the request transmission processing unit 64 determines whether or not the touch panel unit 40 has been switched to the main channel image (main channel image selection operation) by the user. judge.

For example, on the touch panel unit 40, each image of the main channel image and the plurality of sub-channel images is displayed so that the user can select them by thumbnail display or the like. Here, regarding the sub-channel images, the camera images from all the sub-cameras 5 to 9 including the camera images already stored in the first sub-channel image buffer unit 52 and the second sub-channel image buffer unit 53 are included. It is displayed so that the user can select it.

When the request transmission processing unit 64 determines that the user has switched to the main channel image, the request transmission processing unit 64 proceeds to the process of step S2. On the other hand, if the request transmission processing unit 64 determines that there is no switching operation to the main channel image by the user, the process proceeds to the process of step S4.

As the process of step S2, the request transmission processing unit 64 outputs a main channel image switching request for executing the buffer processing to the buffer processing unit 61. Then, the request transmission processing unit 64 proceeds to the process of step S3.

As the process of step S3, the request transmission processing unit 64 outputs a channel switching request for executing the image switching process to the image switching processing unit 62.

On the other hand, as the process of step S4, the request transmission processing unit 64 determines whether or not the touch panel unit 40 has been switched to the sub-channel image (sub-channel image selection operation) by the user. When the request transmission processing unit 64 determines that the user has switched to the sub-channel image, the request transmission processing unit 64 proceeds to the process of step S5. On the other hand, if the request transmission processing unit 64 determines that there is no operation for switching to the sub-channel image by the user, the request transmission processing unit 64 ends the request transmission process.

As the process of step S5, the request transmission processing unit 64 switches to the sub-channel image waiting for output by the user who determines that the operation is the switch operation to the sub-channel image in the process of step S4 (sub-channel image waiting for output). It is determined whether or not it is a channel image selection operation).

Here, the request transmission processing unit 64 temporarily stores the sub-channel image selected by the user in either the first sub-channel image buffer unit 52 or the second sub-channel image buffer unit 53. If it is a channel image, it is determined that the operation by the user is a switching operation to the sub-channel image waiting for output. Further, the request transmission processing unit 64 temporarily stores the sub-channel image selected by the user in either the first sub-channel image buffer unit 52 or the second sub-channel image buffer unit 53. If it is not an image but another sub-channel image (sub-camera image), it is determined that the operation by the user is not a switching operation to the sub-channel image waiting for output.

When the request transmission processing unit 64 determines that the operation by the user determined to be the switching operation to the sub-channel image in the process of step S4 is the switching operation to the sub-channel image waiting for output, the request transmission processing unit 64 performs the process of step S6. move on. On the other hand, when the request transmission processing unit 64 determines that the operation for switching to the sub-channel image in the process of step S4 is not the sub-channel image waiting for output, that is, for the first sub-channel image. If it is not a switching operation to the sub-channel image temporarily stored in either the buffer unit 52 or the second sub-channel image buffer unit 53, the process proceeds to step S7.

As the process of step S6, the request transmission processing unit 64 outputs an output waiting subchannel image switching request for executing the buffer processing to the buffer processing unit 61. At this time, the request transmission processing unit 64 adds the information of the subchannel selected by the user (hereinafter, referred to as the selected subchannel information) and outputs the output waiting subchannel image switching request to the buffer processing unit 61. Then, the request transmission processing unit 64 proceeds to the process of step S3.

As the process of step S7, the request transmission processing unit 64 transmits a sub-camera image transmission request for transmitting the sub-camera image to the sub-camera server. At this time, the request transmission processing unit 64 transmits the sub-camera image transmission request to one of the sub-camera servers 12 to 16 that transmits the sub-camera image selected by the user.

As the process of step S8, the request transmission processing unit 64 outputs a reception subchannel image switching request for executing the buffer processing to the buffer processing unit 61. Then, the request transmission processing unit 64 proceeds to the process of step S3.

Through the above request transmission processing, when the user performs a switching operation to the main channel image, the request transmission processing unit 64 outputs the main channel image switching request to the buffer processing unit 61 and outputs the channel switching request to the image switching process. Output to unit 62.

Further, when the request transmission processing unit 64 has a switching operation to the sub-channel image by the user and the switching operation is a switching operation to the sub-channel image waiting for output, the request transmission processing unit 64 buffers the output waiting sub-channel image switching request. Along with outputting to unit 61, a channel switching request is output to image switching processing unit 62.

Further, the request transmission processing unit 64 has a switching operation to the sub-channel image by the user, and the switching operation is temporarily performed in either the first sub-channel image buffer unit 52 or the second sub-channel image buffer unit 53. When the operation is not to switch to the sub-channel image (sub-camera image) stored in the image, the sub-camera image transmission request is transmitted to the sub-camera servers 12 to 16 for transmitting the sub-camera image selected by the user, and the sub-camera image transmission request is transmitted. The reception subchannel image switching request is output to the buffer processing unit 61. Further, the request transmission processing unit 64 outputs the channel switching request to the image switching processing unit 62.

FIG. 6 is a flowchart showing an example of buffer processing (hereinafter, referred to as first buffer processing).

As shown in FIG. 6, first, as the process of step S21, the buffer processing unit 61 determines whether or not there is a main channel image switching request. When the image switching processing unit 62 determines that the main channel image switching request has been made, the image switching processing unit 62 proceeds to the process of step S22.

As the process of step S22, the buffer processing unit 61 outputs (reads) the sub-channel images from the first and second sub-channel image buffer units 52 and 53 to the main channel image from the main channel image buffer unit 51. Switch to output.

FIG. 7 is a flowchart showing an example of buffer processing (hereinafter, referred to as second buffer processing).

As shown in FIG. 7, first, as the process of step S41, the buffer processing unit 61 determines whether or not there is an output waiting subchannel image switching request. When the image switching processing unit 62 determines that the output waiting subchannel image switching request has been made, the image switching processing unit 62 proceeds to the process of step S42.

As the process of step S42, the buffer processing unit 61 switches to the output of the channel image temporarily stored in either the first sub-channel image buffer unit 52 or the second sub-channel image buffer unit 53. At this time, the buffer processing unit 61 is for the first sub-channel image buffer unit 52 and the second sub-channel image selected by the user based on the selected sub-channel information added to the output waiting sub-channel image switching request. The output is switched to the output of the sub-channel image temporarily stored in any of the buffer units 53.

By the above second buffer processing, when the buffer processing unit 61 receives an output waiting subchannel image switching request during the output of the main channel image from the main channel image buffer unit 51, the buffer processing unit 61 receives the output waiting subchannel image switching request from the main channel image buffer unit 51. The output of the main channel image is switched to the output of the subchannel image temporarily stored in any of the first subchannel image buffer unit 52 and the second subchannel image buffer unit 53 selected by the user.

Further, the buffer processing unit 61 is for the second sub-channel image selected by the user when, for example, there is an output waiting sub-channel image switching request during the output of the sub-channel image from the first sub-channel image buffer unit 52. The output is switched to the output of the sub-channel image temporarily stored in the buffer unit 53.

FIG. 8 is a flowchart showing an example of buffer processing (hereinafter, referred to as a third buffer processing).

As shown in FIG. 8, first, as the process of step S61, the buffer processing unit 61 determines whether or not there is a reception subchannel image switching request. When the image switching processing unit 62 determines that the reception subchannel image switching request has been made, the image switching processing unit 62 proceeds to the process of step S62.

As the process of step S62, the buffer processing unit 61 selects the sub-channel image buffer unit that stores the sub-camera image newly transmitted from the sub-camera server. Specifically, the buffer processing unit 61 selects the sub-channel image buffer unit of the sub-channel image of the first sub-channel image buffer unit 52 and the sub-channel image of the second sub-channel image buffer unit 53. Among them, the sub-channel image buffer unit in which the sub-channel image having a low reproduction frequency such as a smaller number of reproductions or a shorter reproduction time is stored is selected. The number of reproductions and the reproduction time are counted based on, for example, the display on the touch panel unit 40.

As the process of the following step S63, the buffer processing unit 61 determines whether or not the sub camera image newly transmitted from the sub camera server has been received. The sub-camera image newly transmitted from the sub-camera server is continuously temporarily stored in the first sub-channel image buffer section 52 and the second sub-channel image buffer section 53. It is not the sub-camera image transmitted from the sub-camera image, but the sub-camera image transmitted from the sub-camera server different from the sub-camera server by the sub-camera image transmission process described later. When the buffer processing unit 61 determines that the sub camera image newly transmitted from the sub camera server has been received, the buffer processing unit 61 proceeds to step S64.

As the subsequent processing in step S64, the buffer processing unit 61 selects the sub-camera image determined to have been received in the processing in step S63 in the processing in step S62 for the first sub-channel image buffer unit 52 and the second sub-channel image. It is stored in any of the buffer units 53.

As the process of step S65, the buffer processing unit 61 switches to the sub-channel image temporarily stored in either the first sub-channel image buffer unit 52 or the second sub-channel image buffer unit 53 in the process of step S65. Output.

Through the above third buffer processing, the buffer processing unit 61 selects the sub-channel image buffer unit that stores the sub-camera image newly transmitted from the sub-camera server when there is a reception sub-channel image switching request. .. Then, when the buffer processing unit 61 receives the newly transmitted sub-camera image from the sub-camera server, the buffer unit 52 for the first sub-channel image and the second sub-channel that previously selected the received sub-camera image It is stored in any of the image buffer units 53. After that, the buffer processing unit 61 switches to and outputs a sub-channel image (sub-camera image) temporarily stored in either the first sub-channel image buffer unit 52 or the second sub-channel image buffer unit 53.

FIG. 9 is a flowchart showing an example of the image switching process.

As shown in FIG. 9, first, as the process of step S81, the image switching processing unit 62 determines whether or not there is a channel image switching request. When the image switching processing unit 62 determines that the channel image switching request has been made, the image switching processing unit 62 proceeds to the process of step S82.

As the process of step S82, the image switching processing unit 62 performs the image switching process between the channel images. For example, the image switching processing unit 62 switches between the channel image (camera image) before switching and the channel to be switched and output by the buffer processing unit 61, which is output from the channel image buffer unit as the image switching process. While synchronizing with the image (camera image) and performing crossfade processing, the image is output to the audio image synchronization processing unit 63 in the subsequent stage. For example, regarding synchronization, the image switching processing unit 62 synchronizes between channel images (camera images) based on the time information added to the channel images (camera images).

FIG. 10 is a flowchart showing an example of the transmission processing of the sub camera image in the sub camera servers 12 to 16.

As shown in FIG. 10, first, as the process of step S101, the sub-camera servers 12 to 16 determine whether or not the sub-camera image transmission request from the receiving terminal 30 has been received. When the sub-camera servers 12 to 16 determine that the sub-camera image transmission request from the receiving terminal 30 has been received, the process proceeds to step S102.

As the process of step S102, the sub-camera servers 12 to 16 transmit the sub-camera image to the receiving terminal 30 that has transmitted the sub-camera image transmission request determined to have been received in the process of step S101.

By the above transmission process, when the sub camera server of one of the sub camera servers 12 to 16 receives the sub camera image transmission request from the receiving terminal 30, the sub camera server starts transmitting the sub camera image to the receiving terminal 30. To do.

FIG. 11 is a diagram showing an example of display on the touch panel unit 40.

As shown in FIG. 11, the image 100 is displayed on the upper side of the touch panel unit 40, and the operation buttons 200 are displayed on the lower side of the touch panel unit 40.

The operation button 200 is composed of up / down / left / right buttons 201, 202, 203, 204 and a center button 205. The upper button 201 is a button for increasing the voice volume of the speaker 33, and the lower button 202 is a button for decreasing the voice volume of the speaker 33. The left button 203 and the right button 204 are buttons for displaying a window for selecting a sub-camera image (sub-channel image) (hereinafter, referred to as a sub-camera image selection window). The center button 205 is a button for selecting a main camera image (main channel image), and when it is pressed and held for a long time, a photo shot is executed.

FIG. 12 is a diagram showing a display example on the touch panel unit 40 displaying the sub camera image selection window 110.

When the left button 203 or the right button 204 is pressed in the state of being displayed as shown in FIG. 11, the sub camera image selection window 110 is displayed on the touch panel unit 40 as shown in FIG. .. The sub-camera image is displayed as a thumbnail in the sub-camera image selection window 110.

When the sub-camera image selection window 110 is displayed, the left button 203 functions as a button for moving the cursor to the left in the sub-camera image selection window 110, and the right button 204 is for sub-camera image selection. It functions as a button to move the cursor to the right in the window 110. Further, the upper button 201 or the lower button 202 functions as a button for closing the sub camera image selection window 110. Further, the center button 205 functions as a button for determining the selection of the sub camera image selected by the cursor in the sub camera image selection window 110.

For example, as a result, the request transmission processing unit 64 executes processing according to the sub-camera image (sub-channel image) selected and determined by the center button 205 by the request transmission processing (steps S4 to S8, steps S3). Execute the process). Further, the request transmission processing unit 64 executes processing according to the main camera image (main channel image) when the center button 205 is pressed in the state where the sub camera image selection window 110 is closed (steps S2 and S3). ).

(Operation, action, etc.)
Next, an operation of the information distribution system 1 and an example of its operation will be described.

In the information distribution system 1, when the distribution of the video is started from the concert venue, the servers 10 to 16 transmit the main camera image from the main camera 4 and the sound from the microphones 2 and 3 to the receiving terminal 30. At this time, the two sub-camera servers that have detected that they have been selected by the request from the receiving terminal 30 among the plurality of sub-camera servers 12 to 16 transmit the sub-camera image to the receiving terminal 30. .. For example, the two sub-camera servers are sub-camera servers that are preset by default.

In the receiving terminal 30, the buffer processing unit 61 temporarily stores the received image data and audio data in the image data buffer 50 and the audio data buffer 36, respectively, and the audio image synchronization processing unit 63 starts from the image data buffer 50. The output camera image and the audio output from the audio data buffer 36 are synchronized, and the image and audio are externally output via the touch panel unit 40 and the speaker 33.

Then, in the receiving terminal 30, when the request transmission processing unit 64 causes the touch panel unit 40 to switch to the main channel image, the request transmission processing unit 64 outputs the main channel image switching request to the buffer processing unit 61 and channels. The switching request is output to the image switching processing unit 62.

As a result, when the buffer processing unit 61 receives the main channel image switching request, the buffer processing unit 61 outputs the sub-channel images from the first and second sub-channel image buffer units 52 and 53 for the main channel image by the first buffer processing. Switch to the output of the main channel image from the buffer unit 51. On the other hand, when the image switching processing unit 62 receives a channel switching request, the image switching processing unit 62 performs crossfade processing while synchronizing the sub-channel image and the main channel image in conjunction with the first buffer processing of the buffer processing unit 61. Switch to the output of the main channel image.

FIG. 13 is a diagram mainly for explaining the crossfade process.

As shown in FIG. 13A, the image switching processing unit 62 performs crossfade processing while synchronizing the sub-channel image and the main channel image, and switches to the output of the main channel image.

Further, when the request transmission processing unit 64 has a switching operation to the sub-channel image by the user on the touch panel unit 40 and the switching operation is a switching operation to the sub-channel image waiting for output, the output waiting sub-channel The image switching request is output to the buffer processing unit 61, and the channel switching request is output to the image switching processing unit 62.

As a result, when the buffer processing unit 61 receives an output waiting subchannel image switching request, the first subchannel image buffer unit 52 and the second subchannel image buffer that have been output up to that point by the second buffer processing The sub-channel image from any one of the units 53 is switched to the output of the sub-channel image from any one of the first sub-channel image buffer unit 52 and the second sub-channel image buffer unit 53 waiting for output. On the other hand, when the image switching processing unit 62 receives a channel switching request, the image switching processing unit 62 interlocks with the second buffer processing of the buffer processing unit 61, and the channel image that has been output up to that point and the sub-channel image that has been waiting for output are displayed. Is synchronized and crossfade processing is performed to switch to the output of the subchannel image that has been waiting for output.

As a result, as shown in FIG. 13B, the image switching processing unit 62 synchronizes the main channel image that has been output up to that point with the sub-channel image that is waiting for output, performs crossfade processing, and waits for output. Switch to the output of the sub-channel image of.

Alternatively, as shown in FIG. 13C, the image switching processing unit 62 synchronizes the subchannel image A that has been output up to that point with the subchannel image B that is waiting for output, performs crossfade processing, and outputs the image. Switch to the output of the waiting subchannel image B.

Further, the request transmission processing unit 64 has a user perform a switching operation to the sub-channel image on the touch panel unit 40, and the switching operation is performed by the first sub-channel image buffer unit 52 and the second sub-channel image buffer unit. When the operation is not to switch to the channel image (sub-camera image) temporarily stored in any of 53, the sub-camera image transmission request is transmitted to the corresponding sub-camera server and the reception sub-channel image is switched. The request is output to the buffer processing unit 61. Further, the request transmission processing unit 64 outputs the channel switching request to the image switching processing unit 62.

As a result, when the receiving terminal 30 requests the sub-camera image transmission, the sub-camera server transmits the sub-camera image to the receiving terminal 30. On the other hand, in the receiving terminal 30, when the receiving sub-channel image switching request is made, the buffer processing unit 61 stores the sub camera image newly transmitted from the sub camera server by the third buffer processing. When the channel image buffer unit is selected and a newly transmitted sub-camera image is received from the sub-camera server, the received sub-camera image is temporarily stored in the selected sub-channel image buffer unit. After that, the buffer processing unit 61 switches to the output of the sub-camera image temporarily stored in the sub-channel image buffer unit. On the other hand, when the image switching processing unit 62 receives a channel switching request, the image switching processing unit 62 temporarily interlocks with the third buffer processing of the buffer processing unit 61 to temporarily output the channel image and the sub-channel image buffer unit that have been output so far. Crossfade processing is performed in synchronization with the sub-camera image stored in the subchannel image, and the output is switched to the output of the subcamera image temporarily stored in the subchannel image buffer section.

As a result, as shown in FIG. 13 (D), the image switching processing unit 62 has the sub-camera image newly temporarily stored in the main channel image and the sub-channel image buffer unit that have been output so far. Is synchronized with and crossfade processing is performed to switch to the output of the subchannel image.

Alternatively, as shown in FIG. 13 (E), the image switching processing unit 62 includes the sub-channel image that has been output up to that point and the sub-camera image that is newly temporarily stored in the sub-channel image buffer unit. Is synchronized and crossfade processing is performed, and the output is switched to the output of the subchannel image.

(Effect in this embodiment)
(1) The receiving terminal 30 receives each sub-camera image transmitted by the two sub-camera servers, temporarily stores the sub-camera image, and switches each sub-camera image to obtain one sub-camera image. By being able to output, it is possible to switch the output between multiple sub-camera images faster and smoothly.

(2) The receiving terminal 30 can output one sub-camera image according to the request of the user.

(3) The receiving terminal 30 outputs a sub-camera image (sub-channel image) that has not yet been received and has not been stored in the sub-channel image buffer unit, as specified by the user, and has a high priority sub-camera. The output of the image (sub-channel image) can be switched faster and more smoothly.

(4) The receiving terminal 30 sub-channels the frequently reproduced sub-channel images even when switching from the sub-channel images stored in the sub-channel image buffers 52 and 53 to other sub-channel images that have not yet been received. It can be left accumulated in the channel image buffer units 52 and 53, and the sub-channel images with high playback frequency can be switched more quickly and smoothly.

In the above-described embodiment, the information distribution system 1 constitutes, for example, an information output system. Sub-cameras 5-9 constitute, for example, acquisition means. Further, the sub-camera servers 12 to 16 constitute, for example, N servers. Further, the communication unit 32 constitutes, for example, a receiving means. Further, the sub-channel image buffer units 52 and 53 form, for example, storage means. Further, the image switching processing unit 62 constitutes, for example, a switching means. Further, the touch panel unit 40 and the speaker 33 form, for example, an output means.

(Modified examples of this embodiment, etc.)

As a modification of this embodiment, the receiving terminal 30 may have three or more sub-channel image buffer units.

Further, as a modification of the present embodiment, the sub-cameras 5 to 9 and the corresponding sub-camera servers may be configured by a plurality of sub-camera servers other than five.

Further, as a modification of the present embodiment, the information distribution system 1 may be configured to have only a sub camera without a main camera.

Further, as a modification of the present embodiment, the receiving terminal 30 can switch and output a plurality of sounds instead of the image. In this case, for example, in the receiving terminal 30, the audio data buffer 36 has a plurality of buffer units.

Further, in the above-described embodiment, a receiving means for receiving information on any one of a plurality of moving images or audios transmitted by a plurality of servers, and a plurality of receiving means provided corresponding to the plurality of information received by the receiving means. A plurality of storage means for temporarily storing and outputting information, a switching means for switching to one of the plurality of storage means based on the setting information and outputting information from the storage means, and the above-mentioned one. A receiving terminal having an output means for outputting a moving image or an audio based on the information output from the storage means is realized.

Further, in the above-described embodiment, a receiving process for receiving information on either one of a plurality of moving images or audio transmitted by a plurality of servers, and a plurality of information provided corresponding to the plurality of information received in the receiving process. A storage step of temporarily accumulating the plurality of information in each storage means, a switching step of switching to one of the plurality of storage means based on the setting information and outputting the information from the storage means, and the above-mentioned A reception method including an output step of outputting moving images or audio based on information output from one storage means is realized.

Further, in the above-described embodiment, the receiving means receives information on either one of the plurality of moving images or voices transmitted by the plurality of servers, and the plurality of storage means receive the information in the receiving process. The storage step of temporarily storing the plurality of information in each of the plurality of storage means provided corresponding to the information, and the switching means are switched to one of the plurality of storage means to switch to the storage means. A computer program is realized in which a computer is made to execute a switching step of outputting information from a computer and an output process of an output means of outputting moving images or audio based on the information output from the one storage means.

Moreover, although the embodiment of the present invention has been disclosed, it is clear that some skill in the art can make changes without departing from the scope of the present invention. All such modifications and equivalents are intended to be included in the following claims.

1 Information distribution system, 4 Main camera, 5-9 Sub-camera, 10 Audio server, 11 Main camera server, 12-16 Sub-camera server, 30 Receiving terminal, 32 Communication unit, 40 Touch panel unit, 33 Speaker, 34 Microphone, audio data buffer, 50 image data buffer, 51 main channel image buffer unit, 52, 53 sub-channel image buffer unit, 60 processing unit, 61 buffer processing unit, 62 image switching processing unit, 63 audio image synchronization Processing unit, 64 Request transmission processing unit

Claims (7)

N acquisition means for acquiring information on either video or audio, and
N servers that are associated with each of the N acquisition means and that input video or audio information acquired by the N acquisition means and transmit the information.
A receiving means for receiving a plurality of information transmitted by a plurality of servers (N-1) or less among the N servers, and a plurality of information provided corresponding to the plurality of information received by the receiving means. From a plurality of storage means that temporarily accumulate and output, a switching means that switches to one of the plurality of storage means based on the setting information and outputs information from the storage means, and the one storage means. A receiving terminal having an output means for outputting video or audio based on the output information,
Information output system with. The information output system according to claim 1, wherein the setting information is information input by the user of the receiving terminal by operating the receiving terminal. The setting information is information in which the user of the receiving terminal specifies information other than the information temporarily stored by the plurality of storage means.
Of the N servers, one server that transmits the information specified by the user transmits the information.
Among the plurality of storage means, one storage means that stores low-priority information is temporarily switched from the low-priority information to information transmitted from the one server and received via the reception means. Accumulate
The information output system according to claim 1 or 2, wherein the switching means switches to and outputs information temporarily stored by the one storage means. The information output system according to claim 3, wherein the one storage means for storing low-priority information is a storage means for storing information having a low output frequency from the output means among the plurality of storage means. .. A receiving means for receiving information on either one of a plurality of videos or sounds transmitted by a plurality of servers, and
A plurality of storage means provided corresponding to the plurality of information received by the receiving means, and a plurality of storage means for temporarily storing and outputting the plurality of information.
A switching means that switches to one of the plurality of storage means based on the setting information and outputs information from the storage means.
An output means that outputs moving images or audio based on the information output from the above-mentioned one storage means, and
Receiving terminal with. A receiving process that receives information on either one of a plurality of videos or sounds transmitted by a plurality of servers, and
A storage step of temporarily storing the plurality of information in each of the plurality of storage means provided corresponding to the plurality of information received in the reception step.
A switching step of switching to one of the plurality of storage means based on the setting information and outputting information from the storage means.
An output process that outputs moving images or audio based on the information output from the above-mentioned one storage means, and
Receiving method having. A receiving process in which the receiving means receives information on either one of a plurality of moving images or audio transmitted by a plurality of servers.
A storage step in which a plurality of storage means temporarily store the plurality of information in each of the plurality of storage means provided in response to the plurality of information received in the reception step.
A switching step in which the switching means switches to one of the plurality of storage means and outputs information from the storage means.
An output step in which the output means outputs a moving image or audio based on the information output from the one storage means.
A computer program that causes a computer to run.

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