JP2013225809A - Content output system, output device, television receiver, and mobile communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a content output system, an output device, a television receiver, and a mobile communication terminal, capable of easily discriminating a desired output device.SOLUTION: A mobile communication device 1 transmits data to one of a plurality of television receivers (output devices) 2, to output a content. When selecting a data output destination, the mobile communication device 1 allows the plurality of television receivers 2 to output voices including electronic watermarks each indicative of proper information of each television receiver 2. A television receiver 2 corresponding to proper information indicated by an electronic watermark having a maximum sound volume is discriminated as a television receiver 2 nearest to the mobile communication device 1. By the determination of the television receiver 2 as a data transmission destination, the content can be output from the television receiver 2 nearest to the user of the mobile communication device 1.

Description

  The present invention relates to a content output system, an output device, a television receiver, and a mobile communication device for outputting content stored in a mobile communication device such as a mobile phone using an output device such as a television receiver.

  A mobile communication device such as a mobile phone or a smartphone can store content such as images or music. In addition, an output device such as a television receiver or an audio device is connected to a communication network such as a home network, can receive data via the communication network, and can output content based on the received data. is there. Accordingly, a technology has been developed in which communication technology such as DLNA (Digital Living Network Alliance) is used to communicate between the portable communication device and the output device, and the content stored in the portable communication device is output by the output device. Yes. Patent Document 1 discloses a technique for transmitting and outputting data from a portable communication device to a device connected to a communication network.

JP 2011-120144 A

  There may be a plurality of output devices that can communicate with the portable communication device. For example, a plurality of television receivers connected to the home network may be installed in the home. In such a state, the user who uses the mobile communication device needs to select an output device to which data is to be transmitted from the mobile communication device. Conventionally, a list of output devices that can transmit data can be displayed on a portable communication device, but it is difficult to associate the displayed list with an actual output device. Specifically, when trying to output content to the nearest output device from the user, it is difficult to determine which output device in the list is the nearest output device, which is not convenient. is there.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a content output that can easily determine a desired output device by actually outputting the content to the output device. A system, an output device, a television receiver, and a portable communication device are provided.

  The content output system according to the present invention includes a mobile communication device, and one or a plurality of output devices that transmit data from the mobile communication device and output content based on the data. The apparatus includes means for transmitting a signal instructing output of individual content to the one or more output devices, and the output device outputs individual content corresponding to the output device according to the received signal. And the portable communication device further includes an acquisition unit for acquiring the content output by the output device, and a specifying unit for specifying the output device corresponding to the content acquired by the acquisition unit. To do.

  In the content output system according to the present invention, the individual content corresponding to the output device is audio content, and the portable communication device includes: a means for obtaining a volume of the audio content acquired by the acquisition means; The apparatus further comprises means for ranking the plurality of output devices in descending order of volume of audio content corresponding to each output device when a plurality of output devices are specified.

  The content output system according to the present invention is characterized in that the portable communication device further includes means for displaying a list of the plurality of output devices in which the plurality of output devices are distinguished according to the order.

  The content output system according to the present invention is characterized in that the portable communication device further includes means for determining a first output device among the plurality of output devices as a data transmission target.

  In the content output system according to the present invention, the portable communication device repeatedly transmits a signal instructing output of specific audio content in a state where data is transmitted to one of the plurality of output devices. Means for transmitting to the one output device; storage means for storing the volume of the audio content acquired by the acquisition means; volume stored in the storage means; and volume of the audio content acquired by the acquisition means When the volume of the audio content acquired by the acquisition unit is reduced by a predetermined amount or more compared to the volume stored in the storage unit, the individual audio to the plurality of output devices Means for transmitting a signal for instructing output of the content, and each of the plurality of output devices in descending order of the volume of the audio content corresponding to each output device acquired by the acquisition unit. Means for prioritize, an th order output device among said plurality of output devices, characterized in that it comprises a means for determining the data transmission target.

  The content output system according to the present invention is characterized in that the content unique to each output device is content including a digital watermark indicating information unique to each output device.

  The content output system according to the present invention is characterized in that the output device is a television receiver.

  The output device according to the present invention is an output device that receives data and outputs content based on the received data, means for storing unique information unique to the own device, and outputting content including unique content Means for receiving a signal for instructing, in accordance with the signal received by the means, means for generating content including a digital watermark indicating the unique information, and means for outputting the content generated by the means Features.

  The television receiver according to the present invention includes means for receiving a television broadcast, a display unit, an audio output unit, means for receiving data, and video content or audio content based on data received by the means. In a television receiver comprising means for outputting to the display unit or the audio output unit, means for storing unique information unique to the device and a signal for instructing output of content including unique content are received. Means for generating video content or audio content including a digital watermark indicating the specific information according to the signal received by the means, and the video content or audio content generated by the means for the display unit or the audio Means for outputting to an output unit.

  The mobile communication device according to the present invention transmits a signal instructing output of individual content to one or a plurality of external devices in the mobile communication device that transmits data for causing the external device to output content to the external device. Means, acquisition means for acquiring the content output by the external device, and specifying means for specifying the external device corresponding to the content acquired by the acquisition means.

  In the mobile communication device according to the present invention, when the content specific to each external device is audio content, the means for obtaining the volume of the audio content acquired by the acquisition unit, and the specifying unit specifies a plurality of external devices And a means for ranking each of the plurality of external devices in descending order of the volume of the audio content corresponding to each external device.

  The portable communication device according to the present invention repeatedly transmits a signal instructing output of specific audio content to the one external device in a state where data is being transmitted to one of the plurality of external devices. Means for transmitting; storage means for storing the volume of the audio content acquired by the acquisition means; means for comparing the volume stored in the storage means with the volume of the audio content acquired by the acquisition means; Instructing the plurality of external devices to output individual audio content when the volume of the audio content acquired by the acquisition unit has decreased by a predetermined amount or more compared to the volume stored in the storage unit Means for transmitting a signal, means for ranking each of the plurality of external devices in descending order of volume of audio content corresponding to each external device acquired by the acquisition means, The external device of a first rank among the external device, and further comprising a means for determining the data transmission target.

  In the present invention, data is transmitted from a portable communication device to an output device such as a television receiver, and the output device outputs content based on the data. In order to select an output device to which data is to be transmitted, the mobile communication device causes the output device to output individual content and identifies an output device corresponding to the acquired content. Thereby, the output device which can transmit data with a portable communication apparatus can be made to correspond with the actual output device installed.

  In the present invention, the mobile communication device obtains the volume of the acquired audio content, and ranks the plurality of output devices in descending order of volume. Based on the sound volume, a plurality of output devices are ranked in the order closer to the mobile communication device.

  In the present invention, a list of output devices that distinguish each output device according to the order is displayed on the mobile communication device. Thereby, an output device close to the mobile communication device is determined.

  In the present invention, the mobile communication device determines the output device with the first rank as the data output target. As a result, the output device closest to the mobile communication device receives the data and outputs the content.

  In the present invention, the mobile communication device causes the output device to output audio content, repeatedly determines the nearest television receiver, and sets the nearest television receiver as the data transmission destination. Even if the mobile communication device moves, the content is always output from the television receiver closest to the mobile communication device.

  In the present invention, the individual content to be output to the output device is a content including a digital watermark indicating unique information of the output device. Individual contents are output and acquired without being noticed by the user.

  According to the present invention, it is possible to easily select the output device closest to the mobile communication device and output the content, and there are excellent effects such as improving the convenience of the content output system.

It is a schematic diagram which shows the structure of a content output system. It is a block diagram which shows the function structure inside a television receiver. It is a block diagram which shows the function structure inside a portable communication apparatus. It is a flowchart which shows the procedure of the process which selects the target television receiver which transmits content data from a portable communication apparatus. It is a schematic diagram which shows the example of the list | wrist of a television receiver. It is a schematic diagram which shows the example of the list | wrist which emphasized the television receiver with which specific information matched. It is a schematic diagram which shows the example of the list | wrist which emphasized the television receiver according to the order | rank. It is a flowchart which shows the procedure of the process which a portable communication apparatus changes the transmission target of data.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.
(Embodiment 1)
FIG. 1 is a schematic diagram showing a configuration of a content output system. The content output system includes a portable communication device 1 such as a portable PC (personal computer), a mobile phone or a smartphone, and a plurality of television receivers 2. The television receiver 2 is an output device of the present invention. The portable communication device 1 and the plurality of television receivers 2 can transmit and receive data via a communication network 3 such as a home network. The communication network 3 includes communication devices such as a router, a hub, and an access point that enable wireless communication and wired communication, and enables mutual communication between a plurality of devices using a communication technique such as DLNA. For example, the communication network 3 includes an access point, performs wireless communication between the mobile communication device 1 and the access point, and performs wired communication between the access point and the television receiver 2, thereby enabling mobile communication. The device 1 and the television receiver 2 transmit and receive data to and from each other via the communication network 3. The mobile communication device 1 transmits content data to the television receiver 2 via the communication network 3, and the television receiver 2 can output content composed of video or audio based on the received content data. . Other devices such as a recorder or a PC are also connected to the communication network 3. The communication network 3 may be connected to an external communication network such as the Internet.

  FIG. 2 is a block diagram showing an internal functional configuration of the television receiver 2. The television receiver 2 includes a calculation unit that performs calculation, a RAM (Random Access Memory) that stores information associated with the calculation, a ROM (Read Only Memory) that stores a program necessary for the calculation, and the like. Is provided with a processing unit 21 that executes information processing necessary for the processing. The processing unit 21 may be composed of a plurality of parts. The processing unit 21 is connected to a communication unit 24 that communicates with the communication network 3 and a tuner 26 that receives a broadcast signal by television broadcasting. The communication unit 24 is, for example, a Wi-Fi (registered trademark) interface. The processing unit 21 performs processing for generating a video signal and an audio signal from the data received by the communication unit 24 or the broadcast signal received by the tuner 26. The processing unit 21 is connected to a display unit 22 including a display device such as a liquid crystal panel or an EL (Electro Luminescence) panel, and a speaker unit 23. The processing unit 21 performs a process of causing the display unit 22 to display a video based on the video signal and outputting a sound based on the audio signal to the speaker unit 23. Note that the television receiver 2 may include an interface that outputs an audio signal and may output audio from an external speaker. Further, the television receiver 2 may have a form in which the display unit 22 is separated.

  The processing unit 21 includes a digital watermark generation unit 211 that performs processing for generating a digital watermark. The digital watermark generation unit 211 performs a process of generating a video signal representing video including a digital watermark indicating specific information or an audio signal representing audio including the digital watermark. The processing unit 21 causes the display unit 22 to display a video including the digital watermark, so that the television receiver 2 outputs video content including the digital watermark. In addition, when the processing unit 21 causes the speaker unit 23 to output audio including the digital watermark, the television receiver 2 outputs audio content including the digital watermark. The digital watermark generation unit 211 may be hardware or may be realized by software processing by the processing unit 21. Further, the digital watermark generation unit 211 may be provided separately from the processing unit 21. Further, the processing unit 21 is connected to a storage unit 25 such as a nonvolatile memory or a hard disk. The storage unit 25 stores unique information unique to the television receiver 2 such as a MAC (Media Access Control) address or a model number.

  FIG. 3 is a block diagram showing an internal functional configuration of the mobile communication device 1. The mobile communication device 1 includes a calculation unit that performs calculation, a RAM that stores information associated with the calculation, a ROM that stores programs necessary for the calculation, and the like. I have. The processing unit 11 may be composed of a plurality of parts. In addition, the mobile communication device 1 includes a first communication unit 141 that performs communication with the communication network 3 and a second communication unit 142 that performs communication with an external communication network such as a public network or the Internet. I have. For example, the first communication unit 141 is a Wi-Fi (registered trademark) interface, and the second communication unit 142 is an LTE (Long Term Evolution) interface. A switching unit 140 that switches between the first communication unit 141 and the second communication unit 142 is connected to the processing unit 11. The switching unit 140 selects one of the first communication unit 141 and the second communication unit 142, and the processing unit 11 performs communication using the selected communication unit.

  A display unit 12 including a display device such as a liquid crystal panel or an EL panel and a speaker unit 13 are connected to the processing unit 11. The processing unit 11 performs processing for displaying video on the display unit 12 and outputting audio to the speaker unit 13. The processing unit 11 is connected to a microphone unit 16 including a microphone and a camera unit 17 including an image sensor. The mobile communication device 1 can acquire the audio content output from the television receiver 2 using the microphone unit 16. In addition, the mobile communication device 1 can acquire the video content output from the television receiver 2 using the camera unit 17. The processing unit 11 receives an audio signal obtained by converting the audio acquired by the microphone unit 16 into an electrical signal, and a video signal obtained by converting the video acquired by the camera unit 17 into an electrical signal.

  The processing unit 11 includes a digital watermark detection unit 111 that detects a digital watermark included in the audio acquired by the microphone unit 16 or the video acquired by the camera unit 17. The digital watermark detection unit 111 performs processing for extracting digital watermark data from the audio signal from the microphone unit 16 and the video signal from the camera unit 17 and decoding information indicated by the digital watermark. The digital watermark detection unit 111 may be hardware, or may be realized by software processing by the processing unit 11. Further, the digital watermark detection unit 111 may be provided separately from the processing unit 11. Furthermore, a storage unit 15 such as a semiconductor memory or a hard disk and an input unit 18 such as a touch panel or a keypad are connected to the processing unit 11. The storage unit 15 stores content data representing content composed of video or audio. The input unit 18 receives an operation from the user.

  Next, the operation of the content output system will be described. FIG. 4 is a flowchart showing a procedure of processing for selecting a target television receiver 2 to which content data is transmitted from the mobile communication device 1. The processing unit 11 of the mobile communication device 1 activates a pairing application, searches for devices that can be connected through the communication network 3 (S101), and acquires unique information of each device (S102). In step S <b> 102, the processing unit 11 transmits a command for requesting unique information to each device from the first communication unit 141, and each device transmits the stored unique information to the mobile communication device 1. The unique information is information unique to each device, such as the MAC address, model number, model name, or serial number of each device. At this time, the television receiver 2 transmits the unique information stored in the storage unit 25 to the mobile communication device 1 via the communication network 3.

  Next, the processing unit 11 identifies the television receiver 2 from devices that can be connected through the communication network 3 based on the received unique information of each device (S103). For example, in step S103, the processing unit 11 specifies whether each device is the television receiver 2 based on the model name included in the received unique information. Further, for example, the storage unit 15 stores a list of model numbers of the television receiver in advance, and the processing unit 11 identifies the television receiver 2 by comparing the model number and the list included in the received unique information. To do. Further, for example, the processing unit 11 is connected to an external communication network using the second communication unit 142 or via the communication network 3, and the information stored in a predetermined database (not shown) and the received unique information are In contrast, the television receiver 2 is specified. Next, the processing unit 11 determines whether or not the television receiver 2 is present among devices that can be connected through the communication network 3 (S104). When the television receiver 2 does not exist (S104: NO), the processing unit 11 ends the process without transmitting the content data.

  When the television receiver 2 is present in step S104 (S104: YES), the processing unit 11 transmits a command for instructing the output of the audio including the digital watermark indicating the specific information to each television receiver 2. (S105). The television receiver 2 receives a command transmitted through the communication network 3 by the communication unit 24. The digital watermark generation unit 211 generates an audio signal representing audio including an electronic watermark indicating unique information stored in the storage unit 25, and the processing unit 21 transmits audio based on the generated audio signal to the speaker unit 23. Output. In this way, audio including a digital watermark indicating unique information of each television receiver 2 is output from each television receiver 2. In step S105, the processing unit 11 instructs each television receiver 2 to output a digital watermark at the same volume, and the television receiver 2 outputs the digital watermark at the same volume. In many cases, the audio corresponding to the digital watermark is output mixed with other audio such as audio of a broadcast program. However, there may be cases where only the digital watermark sound is output, such as when the television receiver 2 is not receiving a television broadcast. Usually, sound corresponding to a digital watermark is output at a frequency outside the audible frequency range, and it is difficult for the user's ear to detect the digital watermark.

  The portable communication device 1 acquires the sound output from the television receiver 2 with the microphone unit 16 (S106). The microphone unit 16 inputs an audio signal obtained by converting the acquired audio into an electric signal to the processing unit 11, and the digital watermark detection unit 111 extracts digital watermark data from the audio signal and decodes information indicated by the digital watermark. Thus, a digital watermark is detected (S107). Next, the processing unit 11 compares the unique information acquired via the communication network 3 with the unique information indicated by the detected digital watermark, and determines whether or not there is a television receiver 2 having the matched unique information. (S108). Through this determination process, the processing unit 11 identifies the television receiver 2 with which the unique information matches. When there is no television receiver 2 with the matching unique information (S108: NO), the processing unit 11 causes the display unit 12 to display a list of the television receivers 2 that can be connected through the communication network 3 (S109). ).

  FIG. 5 is a schematic diagram illustrating an example of a list of the television receiver 2. As connectable devices, model names of the television receiver 2 are displayed vertically. Information other than the model name may be displayed as information for distinguishing each television receiver 2. The model names of devices other than the television receiver 2 such as a PC and a recorder are also displayed, and the model name of the television receiver 2 is set so that the priority of the television receiver 2 is higher than other devices. Displayed higher than other devices. The mobile communication device 1 may be in a form that does not display information on devices other than the television receiver 2.

  In step S108, when there is a television receiver 2 with matching unique information (S108: YES), the processing unit 11 determines whether there are a plurality of television receivers 2 with matching unique information. (S110). When the number of the television receivers 2 with the matching unique information is singular (S110: NO), the processing unit 11 highlights the television receivers 2 with the matching unique information and then displays a list of the television receivers 2. It is displayed on the display unit 12 (S111). FIG. 6 is a schematic diagram illustrating an example of a list in which the television receivers 2 having the same specific information are emphasized. FIG. 6 shows an example in which the unique information of “TV B” matches. The model name of “TV B” with matching unique information is displayed at the top of the list, so that the television receiver 2 with matching unique information is highlighted in the list. Note that the television receiver 2 having the same specific information may be emphasized by other methods such as highlighting the model name, changing the display color, or adding an emphasis mark. .

  In step S110, when there are a plurality of television receivers 2 with matching unique information (S110: YES), the processing unit 11 sets the volume of the audio corresponding to the digital watermark indicating the unique information of each television receiver 2. Calculate (S112). For example, the processing unit 11 measures the intensity of a signal corresponding to the digital watermark detected by the digital watermark detection unit 111, and calculates the sound volume corresponding to the digital watermark based on the measured intensity. Next, the processing unit 11 ranks the plurality of television receivers 2 in descending order of sound volume corresponding to the digital watermark indicating the specific information (S113). The closer the television receiver 2 is to the portable communication device 1, the higher the volume of the sound acquired by the portable communication device 1. Therefore, the higher the ranking, the higher the ranking of the television receiver 2, the portable communication device 1. It exists at a position close to 1. Next, the processing unit 11 emphasizes each television receiver 2 in accordance with the order, and displays a list of the television receivers 2 on the display unit 12 (S114).

  FIG. 7 is a schematic diagram illustrating an example of a list in which the television receiver 2 is emphasized according to the order. FIG. 7 shows an example in which the volume from “TV B” is the highest and the volume from “TV C” is the next highest. The list of the television receivers 2 is sorted according to the rank, and the higher-ranked television receiver 2 is displayed higher in the list. Further, the television receiver 2 is emphasized in accordance with the rank by displaying an antenna mark with a higher degree of emphasis as the rank is higher. Note that highlighting may be performed by other methods such as highlight display. Since the television receiver 2 closer to the portable communication device 1 has a higher rank, the television receiver 2 closer to the portable communication device 1 can be easily identified by performing emphasis according to the rank.

  After step S109, step S111, or step S114 is completed, the processing unit 11 selects one television receiver 2 as a transmission target of content data from among the television receivers 2 that can be connected through the communication network 3. Select (S115). For example, when the user who has confirmed the list displayed on the display unit 12 operates the input unit 18, the television receiver 2 to be transmitted is designated, and the processing unit 11 is designated by the designated television receiver 2. Is selected as the transmission target. In the list, the television receiver 2 that is closest to the mobile communication device 1 is emphasized, so that the user is the television receiver 2 in the list and the television receiver 2 that is actually close to the user. Can be easily associated. For this reason, the user can easily designate the closest television receiver 2 such as the television receiver 2 in front of the user as the transmission target of the content data. In step S115, the processing unit 11 may perform a process of automatically selecting the highest-ranked television receiver 2 as a transmission target. Moreover, the process part 11 may perform the process which selects automatically the television receiver 2 with which specific information corresponded as transmission object after step S111.

  Next, the processing unit 11 starts to transmit the content data stored in the storage unit 15 to the selected television receiver 2 (S116). In step S116, the processing unit 11 reads necessary data from the storage unit 15, and transmits the data from the first communication unit 41 to the selected television receiver 2 through the communication network 3. The television receiver 2 receives content data transmitted through the communication network 3 by the communication unit 24. The processing unit 21 generates a video signal and an audio signal from the content data, displays a video based on the video signal on the display unit 22, and outputs a sound based on the audio signal to the speaker unit 23. In this way, content based on the content data transmitted from the mobile communication device 1 is output by the television receiver 2. In many cases, content is output by the television receiver 2 closest to the mobile communication device 1, and the user of the mobile communication device 1 can view the content. The data transmitted by the mobile communication device 1 is not limited to the content data stored in the storage unit 15, and may be data generated by the processing unit 11, and data received by the second communication unit 142. It may be. As described above, the mobile communication device 1 ends the process of selecting the television receiver 2 to which data is to be transmitted, and continues to transmit the content data.

  While transmitting data to the television receiver 2, the mobile communication device 1 performs a process of changing the data transmission target according to the distance to the television receiver 2. FIG. 8 is a flowchart illustrating a procedure of processing in which the mobile communication device 1 changes a data transmission target. The mobile communication device 1 executes the following processing in parallel with the processing for transmitting data to the television receiver 2. The processing unit 11 of the mobile communication device 1 transmits a command for instructing output of audio including a digital watermark indicating unique information to the target television receiver 2 that is transmitting data (S201). The processing unit 21 of the television receiver 2 generates an audio signal representing audio including digital watermarks in the content, and causes the speaker unit 23 to output audio based on the generated audio signal. At this time, the audio content output from the television receiver 2 includes audio corresponding to the digital watermark.

  The portable communication device 1 acquires the sound output from the television receiver 2 with the microphone unit 16 (S202). The microphone unit 16 converts the sound into an electrical signal, the digital watermark detection unit 111 detects the digital watermark from the audio signal (S203), and the processing unit 11 calculates the volume of the audio corresponding to the detected digital watermark ( S204). The processing unit 11 compares the calculated volume with the volume stored in the storage unit 15, and determines whether or not the calculated volume is reduced by a predetermined amount or more compared to the stored volume (S205). . The predetermined amount of value is stored in the storage unit 15 in advance. Note that the predetermined amount used in step S205 is stored in the television receiver 2, and the mobile communication device 1 may read out the data from the television receiver 2 to which data is to be transmitted, as necessary. If the volume is not stored in the storage unit 15, the processing unit 11 advances the process to step S206 described later.

  When the volume has not decreased by a predetermined amount or more (S205: NO), the processing unit 11 stores data indicating the volume calculated in step S204 in the storage unit 15 (S206). In step S206, it is desirable to overwrite the volume data in order to effectively use the storage capacity. Next, the processing unit 11 determines whether or not a predetermined time has elapsed since the acquisition of the sound including the digital watermark (S207). The processing unit 11 has a function of measuring time. Note that the mobile communication device 1 may include a timer unit separately from the processing unit 11. When the predetermined time has not yet elapsed (S207: NO), the processing unit 11 stands by. When the predetermined time has elapsed (S207: YES), the processing unit 11 returns the process to step S201. Note that the mobile communication device 1 may be configured to return the process to step S201 immediately after step S206 is completed without executing step S207. The mobile communication device 1 may be configured not to measure the passage of time but to return the process to step S201 when a predetermined time such as every minute is reached.

  When the volume has decreased by a predetermined amount or more in step S205 (S205: YES), the processing unit 11 transmits a digital watermark indicating unique information to a plurality of television receivers 2 that can be connected via the communication network 3. A command for instructing the output of voice including is transmitted (S208). Each television receiver 2 outputs sound including a digital watermark. At this time, the plurality of television receivers 2 output the digital watermark at the same volume. The portable communication device 1 acquires the sound output from the plurality of television receivers 2 with the microphone unit 16 (S209). The microphone unit 16 converts the sound into an electrical signal, the digital watermark detection unit 111 detects a plurality of digital watermarks from the audio signal (S210), and the processing unit 11 performs a sound volume corresponding to each detected digital watermark. Is calculated (S211). Next, the processing unit 11 ranks the plurality of television receivers 2 in descending order of sound volume corresponding to the digital watermark indicating the unique information of each television receiver 2 (S212).

  Next, the processing unit 11 determines whether or not the television receiver 2 with the highest rank is the current data transmission target television receiver 2 (S213). When the highest-level television receiver 2 is the current data transmission target (S213: YES), the processing unit 11 returns the process to step S201. When the highest-level television receiver 2 is not the current data transmission target (S213: NO), the processing unit 11 changes the data transmission target to the highest-order television receiver 2 (S214). ). Thereafter, the mobile communication device 1 transmits the content data to the changed television receiver 2 to be transmitted, and the television receiver 2 that outputs the content is changed. Thus, the mobile communication device 1 ends the process of changing the data transmission target. After the data transmission target is changed, the mobile communication device 1 repeats the processes in and after step S201 in parallel with the process of transmitting data to the television receiver 2.

  As described above in detail, in the present embodiment, the television receiver 2 to which the mobile communication device 1 can transmit data can be easily associated with the actual television receiver 2 installed. In particular, the user can easily determine the television receiver 2 closest to the mobile communication device 1 from among the plurality of television receivers 2 that can transmit data from the mobile communication device 1. . Therefore, the user can easily select the nearest television receiver 2 from the plurality of television receivers 2 and output the content, thereby improving the convenience of the content output system. .

  In the present embodiment, the mobile communication device 1 repeatedly determines the nearest television receiver 2 and transmits data to the nearest television receiver 2. When the user holding the mobile communication device 1 moves, the television receiver 2 closest to the mobile communication device 1 may change. In the present embodiment, when the television receiver 2 closest to the mobile communication device 1 is changed, the data transmission target is changed to the television receiver 2 that is newly closest to the mobile communication device 1. By changing the data transmission target, the content is always output from the television receiver 2 closest to the mobile communication device 1, and the user can continue to view the content.

  In the present embodiment, the television receiver 2 outputs a sound including a digital watermark indicating unique information. However, in the present invention, the television receiver 2 is individually provided by other methods. A form for outputting content may also be used. For example, in step S105, the portable communication device 1 transmits different individual information together with a command, such as an individually assigned number, together with a command, and the television receiver 2 transmits a digital watermark indicating the received individual information. May be output. Also in this embodiment, the information indicated by the digital watermark from each television receiver 2 is different, and the television receiver 2 to which the mobile communication device 1 can transmit data and the actual television receiver 2 installed can be easily provided. It can be made to correspond.

(Embodiment 2)
The configuration of the content output system according to the second embodiment is the same as that of the first embodiment. In the present embodiment, the mobile communication device 1 transmits a command instructing output of an audio signal indicating specific information to each television receiver 2, and the television receiver 2 does not use a digital watermark. Outputs sound indicating unique information. For example, a voice that expresses information by a combination of pitches such as a dial tone, a voice that expresses the content of information by a human voice, or a voice that expresses information by modulating a voice in a predetermined frequency band is output. The user can confirm with his / her ear that the sound indicating the specific information is output from the television receiver 2. Note that the television receiver 2 may output sound indicating individual information other than the unique information. In step S107, the mobile communication device 1 performs processing for extracting individual information from the acquired voice. The subsequent processing is the same as in the first embodiment. Even in the processes of steps S201 to S214, the television receiver 2 outputs an audio signal indicating individual information without using the digital watermark.

  Also in the present embodiment, the television receiver 2 to which the mobile communication device 1 can transmit data can be easily associated with the actual television receiver 2 installed. The user can easily output the content to the nearest television receiver 2.

  In Embodiments 1 and 2 described above, the output device of the present invention is the television receiver 2, but the output device of the present invention is another device as long as it can output sound. May be. For example, the output device of the present invention may be an audio device.

(Embodiment 3)
The configuration of the content output system according to the third embodiment is the same as that of the first embodiment. In the present embodiment, mobile communication device 1 transmits a command instructing each television receiver 2 to output a video indicating unique information. The digital watermark generation unit 211 of the television receiver 2 generates a video signal representing a video including a digital watermark indicating unique information, and the processing unit 21 causes the display unit 22 to display a video based on the video signal. Note that the television receiver 2 may display a video indicating the unique information without using the digital watermark. For example, the television receiver 2 may display an image including a barcode or QR code (registered trademark) indicating unique information, or an image indicating unique information in characters. Further, the television receiver 2 may display a video showing individual information other than the unique information.

  In step S <b> 106, the mobile communication device 1 uses the camera unit 17 instead of voice to acquire the video displayed by the television receiver 2. The camera unit 17 inputs a video signal obtained by converting the acquired video into an electrical signal to the processing unit 11, and in step S107, the digital watermark detection unit 111 extracts digital watermark data from the video signal, and the digital watermark indicates Decrypt information. If the digital watermark is not used, the mobile communication device 1 performs a process of extracting individual information from the acquired video in step S107. The video displayed on the television receiver 2 closest to the mobile communication device 1 is acquired by the mobile communication device 1, and the video displayed on the other television receiver 2 is not acquired. The portable communication device 1 does not execute the processes of steps S110 to S114, and selects the television receiver 2 displaying the acquired video as a data transmission target in step S115.

  Also in the present embodiment, it is possible to easily determine the television receiver 2 closest to the mobile communication device 1 and transmit data from the mobile communication device 1 to the television receiver 2 to output the content.

  In the present embodiment, the output device of the present invention is the television receiver 2, but the output device of the present invention may be any other device as long as it can display an image. For example, the output device of the present invention may be a display device or a PC.

  In the first to third embodiments, the mode in which data is transmitted from the mobile communication device 1 to the television receiver 2 via the communication network 3 has been described. It may be a form in which content data is transmitted to the television receiver 2 by direct communication.

DESCRIPTION OF SYMBOLS 1 Mobile communication apparatus 11 Processing part 111 Digital watermark detection part 12 Display part 141 1st communication part 142 2nd communication part 15 Memory | storage part 16 Microphone part 17 Camera part 2 Television receiver (output device)
DESCRIPTION OF SYMBOLS 21 Processing part 211 Digital watermark production | generation part 22 Display part 23 Speaker part 24 Communication part 25 Storage part 3 Communication network

Claims (12)

In a content output system including a mobile communication device and one or a plurality of output devices that transmit data from the mobile communication device and output content based on the data,
The portable communication device is
Means for transmitting a signal instructing output of individual content to the one or more output devices;
The output device is
Means for outputting individual content corresponding to the output device according to the received signal;
The portable communication device further includes:
Obtaining means for obtaining the content output by the output device;
A content output system comprising: specifying means for specifying an output device corresponding to the content acquired by the acquisition means. The individual content corresponding to the output device is audio content,
The portable communication device is
Means for obtaining the volume of the audio content acquired by the acquisition means;
2. The apparatus according to claim 1, further comprising: a unit that ranks the plurality of output devices in descending order of volume of audio content corresponding to each output device when the specifying unit specifies a plurality of output devices. The content output system described in 1. The portable communication device is
The content output system according to claim 2, further comprising means for displaying a list of the plurality of output devices in which the plurality of output devices are distinguished according to the order. The portable communication device is
The content output system according to claim 2 or 3, further comprising means for determining an output device having the first rank among the plurality of output devices as a data transmission target. The portable communication device is
Means for repeatedly transmitting a signal instructing output of specific audio content to the one output device in a state where data is being transmitted to one output device of the plurality of output devices;
Storage means for storing the volume of the audio content acquired by the acquisition means;
Means for comparing the volume stored in the storage means with the volume of the audio content acquired by the acquisition means;
A signal for instructing the plurality of output devices to output individual audio contents when the volume of the audio content acquired by the acquisition unit is reduced by a predetermined amount or more compared to the volume stored in the storage unit Means for transmitting
Means for ranking each of the plurality of output devices in descending order of volume of audio content corresponding to each output device acquired by the acquisition means;
The content output system according to any one of claims 2 to 4, further comprising: a unit that determines a first output device among the plurality of output devices as a data transmission target. The content output system according to any one of claims 1 to 5, wherein the content specific to each output device is a content including a digital watermark indicating information unique to each output device. The content output system according to any one of claims 1 to 6, wherein the output device is a television receiver. In an output device that receives data and outputs content based on the received data,
Means for storing unique information unique to the aircraft,
Means for receiving a signal instructing output of content including unique content;
Means for generating content including a digital watermark indicating the unique information according to the signal received by the means;
An output device comprising: means for outputting content generated by the means. Means for receiving a television broadcast, a display unit, an audio output unit, a unit for receiving data, and outputting video content or audio content based on the data received by the unit to the display unit or the audio output unit And a television receiver comprising:
Means for storing unique information unique to the aircraft,
Means for receiving a signal instructing output of content including unique content;
Means for generating video content or audio content including a digital watermark indicating the specific information according to the signal received by the means;
Means for outputting the video content or the audio content generated by the means to the display unit or the audio output unit. In a portable communication device that transmits data for outputting content to an external device to the external device,
Means for transmitting a signal instructing output of individual content to one or a plurality of external devices;
Acquisition means for acquiring content output by an external device;
And a specifying unit that specifies an external device corresponding to the content acquired by the acquiring unit. Individual content for each external device is audio content,
Means for obtaining the volume of the audio content acquired by the acquisition means;
And a means for ranking each of the plurality of external devices in descending order of volume of audio content corresponding to each external device when the specifying unit specifies a plurality of external devices. Item 11. The mobile communication device according to Item 10. Means for repeatedly transmitting a signal instructing output of specific audio content to the one external device in a state where data is being transmitted to one external device of the plurality of external devices;
Storage means for storing the volume of the audio content acquired by the acquisition means;
Means for comparing the volume stored in the storage means with the volume of the audio content acquired by the acquisition means;
A signal for instructing the plurality of external devices to output individual audio content when the volume of the audio content acquired by the acquisition unit is reduced by a predetermined amount or more compared to the volume stored in the storage unit Means for transmitting
Means for ranking each of the plurality of external devices in descending order of volume of audio content corresponding to each external device acquired by the acquisition means;
The mobile communication device according to claim 11, further comprising: means for determining a first external device among the plurality of external devices as a data transmission target.

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