WO2010095264A1 - コンテンツ送信装置、コンテンツ出力システム、送信制御方法、送信制御プログラムおよび記録媒体 - Google Patents
コンテンツ送信装置、コンテンツ出力システム、送信制御方法、送信制御プログラムおよび記録媒体 Download PDFInfo
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- WO2010095264A1 WO2010095264A1 PCT/JP2009/053204 JP2009053204W WO2010095264A1 WO 2010095264 A1 WO2010095264 A1 WO 2010095264A1 JP 2009053204 W JP2009053204 W JP 2009053204W WO 2010095264 A1 WO2010095264 A1 WO 2010095264A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/765—Media network packet handling intermediate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
Definitions
- the present invention relates to a content transmission device, a transmission control method, a transmission control program, and a recording medium that transmit data output by the content output device.
- the present invention also relates to a content output system that outputs content data transmitted from a content transmission device using a content output device.
- utilization of the present invention is not limited to the above-described content transmission device, content output system, transmission control method, transmission control program, and recording medium.
- transmission data addressed to a server device including metadata relating to content data stored in the storage unit of the own device or device information relating to the own device is formed from a mobile device placed in a cradle. And transmitted to the server device via the cradle.
- the server device receives the transmission data from the mobile device transmitted through the cradle, and performs processing according to the received transmission data, content data usage processing, content data usage status grasp processing, mobile device
- state grasping processing and the like cooperation between the mobile device and the server device is strengthened, and the usability of the mobile device and the like is further improved.
- the content viewing device cannot be continued unless the content output device such as a headphone or an earphone is always worn.
- the content output device such as a headphone or an earphone
- the user needs to connect the information terminal to the speaker in the room. Further, when moving to another room in the home while viewing content, it is necessary to reconnect the information terminal to the speaker installed in the destination room.
- a content transmission device is a portable content transmission device that transmits content data to a content output device, and is in the vicinity of the device itself.
- the output timing of the content data output from the device and the other content output device is the same. And transmitting the content data to the content output apparatus and the another content output apparatus as.
- a content output system is a content output system that outputs content data transmitted from a portable content transmission device by at least one content output device, wherein the content transmission device Transmitting means for transmitting content data to the content output device in the vicinity of the own device; and in the state of transmitting the content data to the content output device, the content output device with the portable device Detecting means for detecting that another different content output apparatus is in the vicinity of the own apparatus, and the transmitting means detects that the other content output apparatus is in the vicinity of the own apparatus by the detecting means. Output from the content output device and the other content output device.
- the content data is transmitted to the content output device and the other content output device so that the output timing of the content data is the same, and the content output device transmits the content data transmitted by the content transmission device.
- a transmission control method is a transmission control method for controlling a content transmission device that transmits content data to a content output device,
- the content transmission device In the first transmission step of transmitting content data to a first content output device in the vicinity of the content transmission device, and in the state of transmitting the content data to the content output device, the content transmission device is portable Accordingly, a detection step of detecting that a second content output device different from the first content output device is in the vicinity of the content transmission device, and in the detection step, the second content output device detects the content.
- the first content output is performed so that the output timings of the content data output from the first content output device and the second content output device are the same.
- the transmission control program according to the invention of claim 10 causes a computer to execute the transmission control method according to claim 9.
- a recording medium according to the invention of claim 11 is characterized in that the transmission control program according to claim 10 is recorded in a computer-readable state.
- FIG. 1 is a block diagram of a functional configuration of the content output system according to the embodiment.
- FIG. 2 is a flowchart showing a procedure of content transmission processing by the content transmission apparatus.
- FIG. 3 is a flowchart showing a procedure of content output processing by the content output apparatus.
- FIG. 4 is an explanatory diagram illustrating an outline of the audio system according to the embodiment.
- FIG. 5 is a block diagram showing a hardware configuration of the portable audio player.
- FIG. 6 is a block diagram illustrating a hardware configuration of the audio output device.
- FIG. 7 is a flowchart showing a procedure of music data transmission processing by the portable audio player.
- FIG. 8 is a flowchart showing music data output processing by the audio output device.
- FIG. 9 is a flowchart showing another procedure of music data transmission processing by the portable audio player.
- FIG. 1 is a block diagram of a functional configuration of the content output system according to the embodiment.
- the content output system 100 converts content data transmitted from the portable content transmission device 110 into at least one content output device 120 (for example, the first content output device 120a and the second content). Output by the output device 120b).
- the content transmission device 110 transmits content data to the content output device 120 in the vicinity of the device itself.
- the content transmission device 110 since the content transmission device 110 is portable, the content transmission device 110 is in the vicinity as the user moves.
- the content output device 120 may change.
- the content transmission device 110 switches the output destination of the content data, and always transmits the content data to the content output device 120 in the vicinity of the own device. Thereby, even if the user moves while viewing the content, the user can continue viewing the content from the content output device 120 in the vicinity.
- the content transmission device 110 is, for example, a main body of a portable content reproduction device or a main body of a mobile phone terminal, and includes a transmission unit 111, a detection unit 112, a detection unit 113, and a selection unit 114.
- the transmission unit 111 transmits content data to the content output device 120 in the vicinity of the own device.
- the transmission unit 111 outputs the content data to the plurality of content transmission devices 120 so that the content data is output from the plurality of content output devices 120 at the same timing. Each content data is transmitted.
- the transmission unit 111 transmits, for example, content data stored in its own device, content data distributed by streaming from a content provider, and broadcast content data received by a tuner to the content output device 120.
- the transmission unit 111 may be configured by a plurality of wireless communication modules. In this case, when content data is transmitted to a plurality of content output devices 120, one wireless communication module is associated with one content output device 120, and content data is transmitted on a one-to-one basis.
- the detecting unit 112 detects the content output device 120 in the vicinity of the own device. More specifically, the detection unit 112 detects that another content output device 120 is in the vicinity of the own device when the device is portable while the content data is being transmitted to the content output device 120. To do. Specifically, the detection unit 112 receives a signal oscillated from the content output device 120 and detects the content output device 120.
- the detection unit 113 detects the attribute of the current position of the content transmission device 110.
- As an attribute of the current position for example, outdoor, indoors, in a vehicle, and the like can be given. Further, when the current position is in the house, it may be possible to detect which room in the house. Specifically, for example, the detection unit 113 receives the attribute-specific signal output from an oscillator installed at the entrance of the house, the entrance of each room, or the entrance of the vehicle, thereby determining the attribute of the current position. Detect.
- the selection unit 114 selects a content output device (hereinafter referred to as “priority content output device”) that preferentially transmits content data based on the detection result of the detection unit 113. For example, when the content transmission device 110 is located in the house, the selection unit 114 selects the content output device 120 installed in the house as the priority content output device. For example, when the content transmission apparatus 110 is located in a predetermined room in the house, the content output apparatus 120 installed in the predetermined room is selected as the priority content output apparatus. For example, when the content transmission apparatus 110 is located in a vehicle, the content output apparatus 120 installed in the vehicle is selected as a priority content output apparatus.
- a content output device hereinafter referred to as “priority content output device”
- the content output device 120 is specifically, for example, a headphone, an earphone, a speaker, a display, or the like, and is a device that outputs content data in a form that can be viewed with a user's sensory device such as sound and images.
- a user's sensory device such as sound and images.
- FIG. 1 two content output devices 120 (120a and 120b) are illustrated, but in the content output system 100, more than two content output devices 120 may be used.
- the content output device 120 includes an oscillation unit 121, a reception unit 122, and an output unit 123.
- the oscillation unit 121 oscillates a signal.
- the signal oscillated by the oscillating unit 121 may be used only for detection by the content transmission device 110 or may be used for other purposes. Further, the oscillation of the signal by the oscillating unit 121 continues while the content data is being received and output by the receiving unit 122 and the output unit 123.
- the receiving unit 122 receives content data transmitted by the content transmitting device 110.
- the output unit 123 outputs the content data received by the receiving unit 122.
- FIG. 2 is a flowchart showing a procedure of content transmission processing by the content transmission apparatus.
- the flowchart of FIG. 2 shows a processing procedure when transmission of content data to the second content output device 120b is started while content data is being transmitted to the first content output device 120a.
- the content transmission device 110 transmits content data to the first content output device 120a (step S201). During this time, the position of the content transmission device 110 changes as the user moves. The content transmission device 110 returns to step S201 and continues to transmit content data to the first content output device 120a until the second content output device 120b receives an oscillating signal (step S202: No). .
- the content transmission device 110 starts transmitting content data to the second content output device 120b (step S203). During this time, the transmission of the content data to the first content output device 120a is continued. More specifically, the first content output device 120a and the second content output device 120b are configured to output content data from the first content output device 120a and the second content output device 120b at the same timing. Send content data to. Further, the content transmission device 110 receives signals oscillated by the first content output device 120a and the second content output device 120b (step S204).
- step S205 it is determined whether or not the reception strength of the signal received from the first content output device 120a or the second content output device 120b is equal to or lower than a predetermined strength. If the received intensity from any of the content output devices 120 is not less than or equal to the predetermined strength (step S205: No), the content data is transmitted as it is to the first content output device 120a and the second content output device 120b (step S206). Returning to step S204, the subsequent processing is repeated.
- step S205 when the reception strength from any one of the content output devices 120 is equal to or lower than the predetermined strength (step S205: Yes), the content transmission device 110 transmits the content to the content output device 120 whose reception strength is equal to or lower than the predetermined strength. Data transmission is stopped (step S207), and the processing according to this flowchart is terminated.
- FIG. 3 is a flowchart showing a procedure of content output processing by the content output device.
- the content output device 120 oscillates a signal by the oscillation unit 121 (step S301). In this way, a state where only signal oscillation is performed is set as a standby state. Until the content output device 120 receives the content data transmitted from the content transmission device 110 (step S302: No), the content output device 120 returns to step S301 and continues the standby state.
- step S302 When the content data is received (step S302: Yes), the content output device 120 outputs the received content data from the output unit 123 (step S303). During this time, signal oscillation by the oscillating unit 121 continues. Until the content data cannot be received (step S304: No), the content output device 120 returns to step S303 and continues outputting the content data.
- step S304 When the content data cannot be received (step S304: Yes), the content output device 120 enters a standby state, oscillates the signal by the oscillating unit 121 (step S305), and ends the processing according to this flowchart.
- the content transmission device 110 detects the content output device 120 in the vicinity even during transmission of the content data, and transmits the content data to the detected content output device 120. To do. Thereby, even if the content transmission apparatus 110 moves, the output of content data can be continued from the content output apparatus 120 in the vicinity.
- the content transmission device 110 receives a signal transmitted from the content output device 120, and stops transmission of content data to the content output device 120 whose signal reception strength is equal to or lower than a predetermined strength. As a result, the transmission of the content data to the content output device 120 that has become far from the content transmission device 110 can be stopped, and the content data can be transmitted to the content output device 120 that is closer.
- the content transmission apparatus 110 can detect the attribute of the current position of the own apparatus and can transmit the content data only to the content output apparatus 120 installed at the current position. As a result, content data is output only from the necessary content output device 120, and interference such as sound can be prevented to provide a more comfortable content viewing environment.
- output content in the content output system 100 is music
- a portable audio player is used as the content transmission device 110
- headphones and speakers are used as the content output device 120.
- FIG. 4 is an explanatory diagram illustrating an outline of the audio system according to the embodiment.
- the audio system 400 according to the embodiment includes a portable audio player 410 and an audio output device 420.
- the audio output device 420 is, for example, a headphone 420a and speakers 420b and 420c.
- the portable audio player 410 is an audio device capable of wireless communication.
- the portable audio player 410 stores and reproduces content data such as music and transmits it to the audio output device 420 as audio data.
- the audio data transmitted from the portable audio player 410 to the audio output device 420 may be music data streamed from a content server of a content provider or music data received as a broadcast wave.
- the portable audio player 410 has portability, and its position changes with the movement of the user, for example, at home, in a vehicle, or in an urban area. For this reason, the portable audio player 410 detects the audio output device 420 in the vicinity of its own device, and transmits audio data to the detected audio output device 420.
- a mobile phone terminal may be used as the portable audio player 410.
- the audio output device 420 is, for example, the headphones 420a and the speakers 420b and 420c, and outputs the audio data transmitted from the portable audio player 410 as audio.
- the audio output device 420 is in a standby state until the portable audio player 410 approaches the vicinity of the own device.
- the transmission is performed. Audio data is output.
- the audio data is output using the headphones 420a as the audio output device 420.
- the audio data is output using the home speaker 420b.
- FIG. 4 only two speakers are illustrated as the speaker 420b.
- the audio data is output from the vehicle speaker 420 c as the audio output device 420.
- the audio system 400 can continue to listen to music without interruption even if the user moves by automatically switching the audio output device 420 that outputs the music according to the current position of the user. That is, the audio system 400 can provide a user with a seamless music listening environment.
- FIG. 5 is a block diagram showing a hardware configuration of the portable audio player.
- a portable audio player 410 includes a CPU 501, ROM 502, RAM 503, magnetic disk drive 504, magnetic disk 505, audio I / F (interface) 506, input device 507, video I / F 508, display 509, first communication.
- An I / F 510a and a second communication I / F 510b are provided.
- the components 501 to 510b are connected by a bus 520, respectively.
- the CPU 501 governs overall control of the portable audio player 410.
- the ROM 502 records programs such as a boot program and a communication control program.
- the RAM 503 is used as a work area for the CPU 501. That is, the CPU 501 controls the entire portable audio player 410 by executing various programs recorded in the ROM 502 while using the RAM 503 as a work area.
- the magnetic disk drive 504 controls the reading / writing of the data with respect to the magnetic disk 505 according to control of CPU501.
- the magnetic disk 505 records data written under the control of the magnetic disk drive 504.
- an HD hard disk
- a memory card can be used as the magnetic disk 505.
- An example of information recorded on the magnetic disk 505 is content data such as music data.
- the portable audio player 410 may include a flash memory.
- the flash memory is a rewritable nonvolatile semiconductor memory, and reads / writes data under the control of the CPU 501.
- the flash memory for example, a NAND flash memory or a NOR flash memory can be used. Examples of information recorded in the flash memory include the above-described music information, information on a section that is digest information in the music information, and information that is composed of sound related to the music information.
- the flash memory may have a function as the ROM 502. That is, the flash memory may record the above-described programs.
- the audio I / F 506 is a terminal for connecting headphones or speakers for audio output.
- the portable audio player 410 and the audio output device 420 are connected by wireless communication, but can also be connected using a cable or the like via the audio I / F 506.
- the input device 507 includes a remote controller, a keyboard, a touch panel, and the like provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like.
- the input device 507 may be realized by any one form of a remote controller, a keyboard, and a touch panel, but may be realized by a plurality of forms.
- the video I / F 508 is connected to the display 509. Specifically, the video I / F 508 is output from, for example, a graphic controller that controls the entire display 509, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC for controlling the display 509 based on the image data to be processed.
- a graphic controller that controls the entire display 509
- a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately
- VRAM Video RAM
- a control IC for controlling the display 509 based on the image data to be processed.
- the display 509 displays icons, cursors, menus, windows, or various data such as characters and images.
- the display 509 may draw information on characters and images related to the music information described above.
- a liquid crystal display can be used as the display 509.
- the first communication I / F 510a and the second communication I / F 510b perform wireless communication with the audio output device 420 in the vicinity of the own device using a wireless communication protocol such as Bluetooth (registered trademark), for example.
- a wireless communication protocol such as Bluetooth (registered trademark)
- the two communication I / Fs of the first communication I / F 510a and the second communication I / F 510b can independently communicate with different devices (specifically, the audio output device 420).
- the first communication I / F 510a can communicate with the headphones 420a
- the second communication I / F 510b can communicate with the speaker 420b.
- the second communication I / F 510b can detect the communicable audio output device 420 when the communication destination is not found. Try. Thereby, even if a user moves, the output of the audio
- the first communication I / F 510a and the second communication I / F 510b are connected to a communication network such as the Internet via wireless communication.
- content data can be downloaded from a content server on the Internet, or streaming distribution of content data can be received.
- two communication I / Fs are provided.
- three or more communication I / Fs may be provided, and the above-described functions may be realized by one communication I / F. .
- the transmission unit 111, the detection unit 112, the detection unit 113, and the selection unit 114 included in the content transmission apparatus 110 illustrated in FIG. 1 are recorded in the ROM 502, the RAM 503, the magnetic disk 505, and the like in the portable audio player 410 illustrated in FIG.
- the CPU 501 executes a predetermined program and controls each part in the portable audio player 410 to realize its function.
- FIG. 6 is a block diagram illustrating a hardware configuration of the audio output device.
- the audio output device 420 includes a CPU 601, a ROM 602, a RAM 603, an audio I / F (interface) 604, a speaker 605, an input device 606, and a communication I / F 607.
- the components 601 to 607 are connected by a bus 620, respectively.
- the CPU 601 governs overall control of the audio output device 420.
- the ROM 602 records programs such as a boot program and a voice control program.
- the RAM 603 is used as a work area for the CPU 601. That is, the CPU 601 controls the entire audio output device 420 by executing various programs recorded in the ROM 602 while using the RAM 603 as a work area.
- the audio I / F 604 is connected to a speaker 605 for audio output.
- the speaker 605 outputs a sound obtained by D / A converting a predetermined sound signal in the sound I / F 604.
- the audio I / F 604 may be connected to two speakers 605 for the user's right ear and left ear, for example.
- the input device 606 includes a button operation unit, a dial operation unit, a touch panel, etc. for inputting user instructions.
- the input device 606 may be realized by any one of a button operation unit, a dial operation unit, and a touch panel, but may be realized by a plurality of modes.
- the communication I / F 607 performs wireless communication with the portable audio player 410 in the vicinity of the device using a wireless communication protocol such as Bluetooth (registered trademark).
- the audio output device 420 receives audio data from the portable audio player 410 via the communication I / F 607 and outputs the audio from the speaker 605 via the audio I / F 604.
- the communication I / F 607 transmits an oscillation signal for detection from the portable audio player 410.
- the oscillation signal transmitted by the communication I / F 607 is detected with higher intensity as the distance to the receiving device is shorter. Note that the communication I / F 607 continues to transmit the oscillation signal while receiving audio data from the portable audio player 410.
- the oscillation unit 121, the reception unit 122, and the output unit 123 included in the content output device 120 illustrated in FIG. 1 are set by the CPU 601 using a program recorded in the ROM 602, the RAM 603, or the like in the audio output device 420 illustrated in FIG. This function is realized by executing the program and controlling each unit in the audio output device 420.
- FIG. 7 is a flowchart showing the procedure of music data transmission processing by the portable audio player.
- the portable audio player 410 waits until there is a music reproduction instruction from the user (step S ⁇ b> 701: No loop).
- the portable audio player 410 detects the oscillation signal from the audio output device 420 using the first communication I / F 510a and the second communication I / F 510b (step S701). S702).
- step S703: No the process returns to step S702 and the detection of the oscillation signal is continued.
- the reception of the oscillation signal here means reception of the oscillation signal at a predetermined intensity or more, and means that the audio output device 420 in the vicinity is detected.
- the portable audio player 410 communicates with the audio output device 420 that is the oscillation source of the received oscillation signal.
- the authentication process is performed (step S704), and the music data is transmitted via the communication I / F that has received the oscillation signal (step S705).
- step S703 when the first communication I / F 510a and the second communication I / F 510b each receive an oscillation signal from a separate audio output device 420, an authentication process is performed with each audio output device 420. The music data is transmitted to each audio output device 420.
- step S706 If there is a communication I / F that is not transmitting music data (step S706: Yes), the portable audio player 410 detects an oscillation signal from another audio output device 420 using the communication I / F (step S707). ). If there is no communication I / F that is not transmitting music data (step S706: No), the process proceeds to step S711.
- step S708: Yes When an oscillation signal is received from another audio output device 420 (step S708: Yes), authentication processing is performed with the audio output device 420 (speaker 420b) that is the oscillation source of the received oscillation signal (step S709). ), The music data is transmitted via the communication I / F that has received the oscillation signal (step S710).
- step S708: No When no oscillation signal is received from another audio output device 420 (step S708: No), the process proceeds to step S713.
- the music data transmitted from the first communication I / F 510a and the second communication I / F 510b are the same data.
- the portable audio player 410 causes the first communication I / F 510a and the second communication I / F 510b to simultaneously output the same sound from the two sound output devices 420 that transmit music data.
- the same data here includes data corrected based on the characteristics of the audio output devices 420 so that the same audio is simultaneously output from the two audio output devices 420.
- the portable audio player 410 continues to receive the oscillation signal from the destination audio output device 420 while transmitting music data. If the reception intensity of the oscillation signal from any of the audio output devices 420 is equal to or lower than the predetermined strength (step S711: Yes), transmission of the music data to the audio output device 420 that is lower than the predetermined strength is stopped. (Step S712). A decrease in the reception intensity of the oscillation signal indicates that the distance between the audio output device 420 and the portable audio player 410 (that is, the user) is increased. Therefore, the portable audio player 410 stops transmitting music data to the audio output device 420 and saves power consumption. If the reception intensity of the oscillation signal is higher than the predetermined intensity (step S711: No), the process proceeds to step S713.
- the portable audio player 410 continues to transmit music data (step S714) until the user gives an instruction to stop the music (step S713: No), and returns to step S706 to continue the subsequent processing. If there is an instruction to stop the music (step S713: Yes), the transmission of the music data from the first communication I / F 510a and the second communication I / F 510b is stopped (step S715). The process ends.
- FIG. 8 is a flowchart showing music data output processing by the audio output device.
- the audio output device 420 is first in a standby state in which only an oscillation signal to be detected from the portable audio player 410 is transmitted (step S801). Until the portable audio player 410 approaches the vicinity of the audio output device 420 (step S802: No), the audio output device 420 returns to step S801 and continues the standby state.
- step S802 When the portable audio player 410 approaches the vicinity of the audio output device 420 (step S802: Yes), the audio output device 420 performs an authentication process with the portable audio player 410 (step S803). Then, the music data is received from the portable audio player 410 (step S804), and the received music data is output as a sound (step S805). Note that the oscillation signal continues to be transmitted while audio data is received from the portable audio player 410.
- step S806 While the music data is transmitted from the portable audio player 410 (step S806: Yes), the audio output device 420 returns to step S805 and continues the audio output of the music data.
- step S806: No When music data is no longer transmitted from the portable audio player 410 (step S806: No), the process returns to a standby state in which only the oscillation signal is transmitted (step S807), and the processing according to this flowchart ends.
- the audio system 400 automatically switches the audio output device 420 that outputs music according to the current position of the user. Thereby, even if a user moves, listening to music can be continued without interruption.
- the priority order may be determined for the audio output device 420 that transmits music data depending on the current position of the user. For example, when the user is at home, the music data may be transmitted only to the speaker 420b installed at home even when there is a headphone 420a in the vicinity. Thereby, the power consumption of the portable audio player 410 can be reduced, and the sounds output from the headphones 420a and the speakers 420b can be prevented from interfering with each other.
- FIG. 9 is a flowchart showing another procedure of music data transmission processing by the portable audio player.
- the flowchart of FIG. 9 shows processing when the user returns home from the outside.
- the portable audio player 410 transmits music data to the headphones 420a when going out (step S901).
- step S902 No
- the portable audio player 410 returns to step S901 and continues to transmit the music data to the headphones 420a.
- step S902 When the user enters the home (step S902: Yes), the portable audio player 410 detects an oscillation signal from the speaker 420b installed in the home (step S903). Until the oscillation signal is received (step S904: No), the process returns to step S903 and the detection of the oscillation signal is continued. Whether or not the user has entered the house is determined, for example, based on whether or not an oscillation signal from an oscillator installed at the entrance of the house has been received.
- step S904 When the oscillation signal is received by the first communication I / F 510a or the second communication I / F 510b (step S904: Yes), the portable audio player 410 authenticates with the speaker 420b that is the oscillation source of the received oscillation signal. Processing is performed (step S905), and the music data is transmitted via the communication I / F that has received the oscillation signal (step S906).
- step S904 when the first communication I / F 510a and the second communication I / F 510b each receive an oscillation signal from a separate speaker 420b, an authentication process is performed with each speaker 420b. Music data is transmitted to each speaker 420b.
- the portable audio player 410 stops transmitting the music data to the headphones 420a (step S907) and ends the processing according to this flowchart.
- the portable audio player 410 While reducing the power consumption of 410, it can prevent that the audio
- the music data may be output only to the speaker 420c in the vehicle.
- the current position of the user may be detected even at home, and the music data may be output only from the speaker 420b in the room where the user is located.
- the sound is output only from the speaker 420b installed in the room A while the user is in the room A, and when the user moves to the hallway, the user is installed in the hallway.
- the sound may be output only from the speaker 420b, and when the user moves to the room B, the sound may be output only from the speaker 420b installed in the room B.
- the portable audio player 410 detects the speaker 420b installed at the destination in advance, and starts transmitting music data after detecting that the user has moved there. Further, for example, transmission of music data is started in advance to the speaker 420b installed at the destination, and the speaker 420 side outputs the music data after detecting that the user has entered the room. You may make it start. Whether or not each room has been entered is determined based on, for example, whether or not an oscillation signal from an oscillator installed at the entrance of each room has been received.
- the portable audio player 410 detects the audio output device 420 in the vicinity even during transmission of the music data, and transmits the content data to the detected audio output device 420. Do it. Thereby, even if the portable audio player 410 (user) moves, the output of music data can be continued from the audio output device 420 in the vicinity, and the user can continue listening to music without interruption.
- the portable audio player 410 receives a signal transmitted from the audio output device 420, and stops the transmission of music data to the audio output device 420 whose signal reception intensity is equal to or lower than a predetermined intensity. As a result, transmission of music data to the audio output device 420 that has become far from the portable audio player 410 can be stopped, and the power consumption of the portable audio player 410 can be reduced.
- the portable audio player 410 can detect the attribute of the current position of its own device, and can transmit music data only to the audio output device 420 installed at the current position. As a result, music data is output only from the necessary audio output device 420, and interference of voice and the like can be prevented to provide a more comfortable music listening environment. In addition, power consumption of the portable audio player 410 and the audio output device 420 can be reduced.
- the transmission control method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation.
- This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer.
- the program may be a transmission medium that can be distributed via a network such as the Internet.
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Abstract
Description
前記コンテンツ送信装置の近傍にある第1のコンテンツ出力装置にコンテンツデータを送信する第1の送信工程と、前記コンテンツデータを前記コンテンツ出力装置に送信している状態において、前記コンテンツ送信装置の可搬に伴い前記第1のコンテンツ出力装置とは異なる第2のコンテンツ出力装置が前記コンテンツ送信装置の近傍になったことを検出する検出工程と、前記検出工程で前記第2のコンテンツ出力装置が前記コンテンツ送信装置の近傍になったと検出された場合、前記第1のコンテンツ出力装置と前記第2のコンテンツ出力装置とから出力される前記コンテンツデータの出力タイミングが同じとなるように前記第1のコンテンツ出力装置と前記第2のコンテンツ出力装置とに前記コンテンツデータを送信する第2の送信工程と、を含んだことを特徴とする。
110 コンテンツ送信装置
111 送信部
112 検出部
113 検知部
114 選択部
120,120a,120b コンテンツ出力装置
121 発振部
122 受信部
123 出力部
図1は、実施の形態にかかるコンテンツ出力システムの機能的構成を示すブロック図である。実施の形態にかかるコンテンツ出力システム100は、可搬型のコンテンツ送信装置110から送信されたコンテンツデータを、少なくとも1つ以上のコンテンツ出力装置120(たとえば、第1のコンテンツ出力装置120a、第2のコンテンツ出力装置120b)で出力する。
図4は、実施例にかかるオーディオシステムの概略を示す説明図である。実施例にかかるオーディオシステム400は、ポータブルオーディオプレイヤー410および音声出力装置420によって構成される。音声出力装置420は、たとえばヘッドホン420a、スピーカ420b,420cである。
つぎに、ポータブルオーディオプレイヤー410のハードウェア構成について説明する。図5は、ポータブルオーディオプレイヤーのハードウェア構成を示すブロック図である。図5において、ポータブルオーディオプレイヤー410は、CPU501、ROM502、RAM503、磁気ディスクドライブ504、磁気ディスク505、音声I/F(インターフェース)506、入力デバイス507、映像I/F508、ディスプレイ509、第1の通信I/F510a、第2の通信I/F510bを備えている。各構成部501~510bは、バス520によってそれぞれ接続されている。
つぎに、本音声出力装置420のハードウェア構成について説明する。図6は、音声出力装置のハードウェア構成を示すブロック図である。図6において、音声出力装置420は、CPU601、ROM602、RAM603、音声I/F(インターフェース)604、スピーカ605、入力デバイス606、通信I/F607を備えている。各構成部601~607は、バス620によってそれぞれ接続されている。
つぎに、オーディオシステム400による楽曲出力処理について説明する。上述のように、オーディオシステム400は、楽曲を出力する音声出力装置420を、ユーザの現在位置に合わせて自動的に切り替える。これにより、ユーザが移動しても途切れることなく楽曲の聴取を継続させることができる。
Claims (11)
- コンテンツ出力装置に対してコンテンツデータを送信する可搬型のコンテンツ送信装置であって、
自装置の近傍にあるコンテンツ出力装置にコンテンツデータを送信する送信手段と、
前記コンテンツデータを前記コンテンツ出力装置に送信している状態において、自装置の可搬に伴い前記コンテンツ出力装置とは異なる他のコンテンツ出力装置が自装置の近傍になったことを検出する検出手段と、を備え、
前記送信手段は、前記検出手段によって前記他のコンテンツ出力装置が自装置の近傍になったと検出された場合、前記コンテンツ出力装置と前記他のコンテンツ出力装置とから出力される前記コンテンツデータの出力タイミングが同じとなるように前記コンテンツ出力装置と前記他のコンテンツ出力装置とに前記コンテンツデータを送信することを特徴とするコンテンツ送信装置。 - 前記検出手段は、前記他のコンテンツ出力装置から発振される信号を受信して前記他のコンテンツ出力装置を検出することを特徴とする請求項1に記載のコンテンツ送信装置。
- 前記検出手段は、前記コンテンツ出力装置および前記他のコンテンツ出力装置からの前記信号を受信し、
前記送信手段は、前記信号の受信強度が所定強度以下となった前記コンテンツ出力装置または前記他のコンテンツ出力装置へのコンテンツデータの送信を停止することを特徴とする請求項1または2に記載のコンテンツ送信装置。 - 自装置の現在位置の属性を検知する検知手段と、
前記検知手段による検知結果に基づいて、前記コンテンツデータを優先的に送信するコンテンツ出力装置(以下、「優先コンテンツ出力装置」という)を選択する選択手段と、を備え、
前記送信手段は、前記優先コンテンツ出力装置に対してのみ前記コンテンツデータを送信することを特徴とする請求項1に記載のコンテンツ送信装置。 - 前記検知手段は、自装置の現在位置が家屋内であることを検知し、
前記選択手段は、前記家屋内に設置された前記コンテンツ出力装置を前記優先コンテンツ出力装置として選択することを特徴とする請求項4に記載のコンテンツ送信装置。 - 前記検知手段は、自装置の現在位置が家屋内の所定の部屋であることを検知し、
前記選択手段は、前記所定の部屋内に設置された前記コンテンツ出力装置を前記優先コンテンツ出力装置として選択することを特徴とする請求項4に記載のコンテンツ送信装置。 - 前記検知手段は、自装置の現在位置が車両内であることを検知し、
前記選択手段は、前記車両内に設置された前記コンテンツ出力装置を前記優先コンテンツ出力装置として選択することを特徴とする請求項4に記載のコンテンツ送信装置。 - 可搬型のコンテンツ送信装置から送信されたコンテンツデータを、少なくとも1つ以上のコンテンツ出力装置で出力するコンテンツ出力システムであって、
前記コンテンツ送信装置は、
自装置の近傍にある前記コンテンツ出力装置にコンテンツデータを送信する送信手段と、
前記コンテンツデータを前記コンテンツ出力装置に送信している状態において、自装置の可搬に伴い前記コンテンツ出力装置とは異なる他のコンテンツ出力装置が自装置の近傍になったことを検出する検出手段と、を備え、
前記送信手段は、前記検出手段によって前記他のコンテンツ出力装置が自装置の近傍になったと検出された場合、前記コンテンツ出力装置と前記他のコンテンツ出力装置とから出力される前記コンテンツデータの出力タイミングが同じとなるように前記コンテンツ出力装置と前記他のコンテンツ出力装置とに前記コンテンツデータを送信し、
前記コンテンツ出力装置は、
前記コンテンツ送信装置によって送信された前記コンテンツデータを受信する受信手段と、
前記受信手段によって受信された前記コンテンツデータを出力する出力手段と、を備えることを特徴とするコンテンツ出力システム。 - コンテンツ出力装置に対してコンテンツデータを送信するコンテンツ送信装置を制御する送信制御方法であって、
前記コンテンツ送信装置の近傍にある第1のコンテンツ出力装置にコンテンツデータを送信する第1の送信工程と、
前記コンテンツデータを前記コンテンツ出力装置に送信している状態において、前記コンテンツ送信装置の可搬に伴い前記第1のコンテンツ出力装置とは異なる第2のコンテンツ出力装置が前記コンテンツ送信装置の近傍になったことを検出する検出工程と、
前記検出工程で前記第2のコンテンツ出力装置が前記コンテンツ送信装置の近傍になったと検出された場合、前記第1のコンテンツ出力装置と前記第2のコンテンツ出力装置とから出力される前記コンテンツデータの出力タイミングが同じとなるように前記第1のコンテンツ出力装置と前記第2のコンテンツ出力装置とに前記コンテンツデータを送信する第2の送信工程と、を含んだことを特徴とする送信制御方法。 - 請求項9に記載の送信制御方法をコンピュータに実行させることを特徴とする送信制御プログラム。
- 請求項10に記載の送信制御プログラムを記録したことを特徴とするコンピュータに読み取り可能な記録媒体。
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JP2011500432A JPWO2010095264A1 (ja) | 2009-02-23 | 2009-02-23 | コンテンツ送信装置、コンテンツ出力システム、送信制御方法、送信制御プログラムおよび記録媒体 |
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