WO1999006991A1 - Dispositifs d'emission et de reception de musique, techniques afferentes et systeme d'emission musicale - Google Patents
Dispositifs d'emission et de reception de musique, techniques afferentes et systeme d'emission musicale Download PDFInfo
- Publication number
- WO1999006991A1 WO1999006991A1 PCT/JP1998/003349 JP9803349W WO9906991A1 WO 1999006991 A1 WO1999006991 A1 WO 1999006991A1 JP 9803349 W JP9803349 W JP 9803349W WO 9906991 A1 WO9906991 A1 WO 9906991A1
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- WO
- WIPO (PCT)
- Prior art keywords
- music
- data
- identification information
- music data
- request signal
- Prior art date
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/02—Synthesis of acoustic waves
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
- G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
- G10H1/0058—Transmission between separate instruments or between individual components of a musical system
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
- G10H1/365—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems the accompaniment information being stored on a host computer and transmitted to a reproducing terminal by means of a network, e.g. public telephone lines
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
- G10H2240/095—Identification code, e.g. ISWC for musical works; Identification dataset
- G10H2240/101—User identification
- G10H2240/111—User Password, i.e. security arrangements to prevent third party unauthorised use, e.g. password, id number, code, pin
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/30—Aspects of broadcast communication characterised by the use of a return channel, e.g. for collecting users' opinions, for returning broadcast space/time information or for requesting data
- H04H2201/33—Aspects of broadcast communication characterised by the use of a return channel, e.g. for collecting users' opinions, for returning broadcast space/time information or for requesting data via the broadcast channel
Definitions
- Music distribution device music reception device, music distribution method, music reception method, and music distribution technology
- the present invention relates to a music distribution device, a music reception device, a music distribution method, and a music distribution system that can easily distribute requested music data using digital broadcasting.
- Communication karaoke is known as a conventional music distribution system.
- Communication karaoke has the following problems because it uses MIDI (Musical Instrument Digital Interface) data.
- MIDI Musical Instrument Digital Interface
- MIDI data In most cases, MIDI data must be heard and transcribed by a person with specialized skills, and MIDI data requires specialized skills and knowledge, and original music was difficult to trace accurately.
- an object of the present invention is to provide a system for selecting and distributing compressed music data that can be reproduced (decodable) by a receiver. Disclosure of the invention
- the invention described in claim 1 is a music distribution device that distributes music data based on a request from a remote receiver
- Receiving means for receiving a request signal from a receiver including at least music identification information and compression scheme identification information;
- Transmission means for transmitting music data corresponding to the music identification information included in the received request signal and compressing the music data in a compression method corresponding to the compression method identification information included in the request signal. It is a music distribution device.
- the music data requesting the music data of the music selected by the user to the remote music distribution device, receiving the music data distributed from the music distribution device, and outputting the music data Generating means for generating, at the receiving device, a request signal including at least music identification information for identifying a selected music piece and compression scheme identification information for identifying a compression scheme when the music piece is distributed;
- a music receiving apparatus characterized by comprising decoding means for decoding received music data by a compression decoding method corresponding to a compression method specified by compression method identification information.
- the invention described in claim 3 is a music distribution method for distributing music data based on a request from a remote receiver
- the invention described in claim 4 is a music composition which requests music data of a music piece selected by a user from a remote music distribution apparatus, and receives and outputs music data distributed from the music distribution apparatus.
- a request signal including at least music identification information for identifying the selected music and compression method identification information for identifying a compression method when the music is distributed is generated.
- This is a music receiving method in which received music data is decoded by a compression decoding method corresponding to the compression method specified by the compression method identification information.
- the invention according to claim 5 is a music distribution system in which a music distribution device distributes music data based on a request from a remote receiver.
- a request signal including at least music identification information for identifying the selected music and compression method identification information for identifying a compression method when the music is distributed is generated.
- the music data is read out from the storage medium and played on the karaoke device.
- the data is received from the receiver.
- music data of a compression method designated from among a plurality of audio compression methods such as MIDI, MPEG audio and ATRAC audio is read from the music server.
- the read music data is converted to radio waves by digital satellite broadcasting equipment and distributed.
- the original music data is read from the original music server, and the read music data is subjected to encoding processing of the specified compression method.
- Encoded data is converted to radio waves by digital satellite broadcasting equipment and distributed. Then, the distributed music data is recorded on the storage medium, decompressed by a decoder based on the recorded music data, and reproduced by the karaoke device.
- FIG. 1 is a block diagram of an embodiment to which the present invention is applied.
- FIG. 2 is a block diagram of a music distribution apparatus to which the present invention is applied.
- FIG. 3 is a block diagram of a music receiving apparatus 60A to which the present invention is applied.
- FIG. 4 is a block diagram of a music receiving apparatus 60B to which the present invention is applied.
- FIG. 5 is a block diagram of a music receiving apparatus 60C to which the present invention is applied.
- FIG. 6 is a flowchart showing an example of the processing of the karaoke apparatus to which the present invention is applied. It is one chart.
- FIG. 7 is a flowchart showing an example of processing on the broadcast station side to which the present invention is applied.
- FIG. 8 shows an example of the structure of request data applied to the present invention.
- FIG. 9 is a block diagram of another example of the embodiment to which the present invention is applied.
- FIG. 10 is a block diagram of a music distribution apparatus according to another embodiment of the present invention.
- FIG. 11 is a block diagram of a music receiving apparatus 60D according to another embodiment of the present invention.
- FIG. 12 is a flowchart showing another example of the processing of the karaoke apparatus to which the present invention is applied.
- FIG. 13 is a flowchart showing another example of processing on the broadcast station side to which the present invention is applied.
- This invention is a system that makes it possible to sing karaoke in an atmosphere similar to the original song by expanding and playing back compressed music data when singing karaoke in a karaoke box or the like.
- the main components of the system are a digital broadcasting facility and a music server for distributing music data in an arbitrary specified compression format.
- a karaoke box or the like requires a digital broadcast receiving device together with a karaoke device.
- a communication terminal using a public line for requesting distribution when a song to be sung in karaoke is not stored in advance.
- the broadcast station is provided with a control unit for distribution data by request from the communication terminal.
- digital broadcasting technology using terrestrial or communication / broadcasting satellites is one of the digital satellite broadcasting technologies that have been put into practical use.1) MPEG (Moving Picture Experts Group) Systems, 2) DVB (Digital Video Broadcasting). ) Is used.
- MPEG Motion Picture Experts Group
- DVB Digital Video Broadcasting
- the system according to this embodiment is assumed to be a technology practically used by a digital satellite broadcasting service provider.
- a public line such as a telephone line is assumed as a communication means for receiving a request from a user, and a function to automatically accept a request from a user by a predetermined signal or command. I have it. This can be achieved on a PC with a modem or a computer such as a workstation.
- the karaoke device used by the user for karaoke has a normal mechanism and functions.
- a digital broadcast receiver and a decoder for expanding compressed music data are required.
- the decoder has storage, and plays the music selected by the user if the music is stored in the storage, and disconnects the telephone line if the music is not stored in the storage. Use it to access the computer that controls the distribution request at the broadcasting station and request music data along with the compression method.
- FIG. 1 shows a block diagram of an example of an embodiment of the present invention. Each part is described below. It is assumed that the transmission mechanism of the digital satellite broadcasting equipment 1 is constructed by the technology standardized by MPEG Systems and DVB.
- the music server 2 is a database in which karaoke music is compressed using various audio compression techniques and is made into a database.
- the billing server 11 is for billing each time music data is distributed according to a request from a receiver. These are controlled by a data distribution control device 3 that functions upon receiving a data distribution request from a user via a public line 10.
- the distribution data uplinked by the digital satellite broadcasting equipment 1 is looped back by the communication / broadcasting satellite 4 and received by the receiver 5 installed in a karaoke box or the like.
- the received distribution data is decompressed by the decoder 6 and reproduced as music by the power Raoke device 7.
- the distributed music data is recorded as is on a storage device 8 such as a hard disk, and when a user selects a song thereafter, the music data is recorded on the storage device 8 based on the data recorded on the storage device 8. Decompressed by the decoder 6 and reproduced by the karaoke device 7.
- the song selected by the user is not recorded on the storage device 8.
- the request is transmitted from the request communication terminal 9 to the data distribution control device 3 in the broadcasting station through a public line.
- FIG. 2 shows a detailed configuration of a transmitting station in a music distribution system to which the present invention is applied.
- the MIDI data generated by the MIDI data generation device 41 is registered in the MIDI data server 42.
- the MIDI data registered in the MIDI data server 42 is sent to the MIDI data transmission system 43, packetized, and then sent to the multiplexer 44.
- An uncompressed music signal is registered in the music material registration system 45, and the music signal from the music material registration system 45 is stored in the MPEG audio encoder 46 and the ATRAC audio encoder 49. After being respectively encoded, they are registered in the MPEG audio server 47 and the ATRAC audio server 50.
- the MPEG audio data registered in the MPEG audio server 47 is sent to the MPEG audio transmission system 48, where it is packetized, and then sent to the multiplexer 44.
- the ATRAC data registered in the ATRAC audio server 50 is sent to the ATRAC audio transmission system 51, where it is packetized and sent to the multiplexer 44.
- the sound additional information such as lyrics and music information from the sound additional information registration system 52 is registered in the sound additional information database 53.
- the voice additional information registered in the voice additional information database 53 is sent to the voice additional information transmission system 54, where it is packetized and supplied to the multiplexer 44.
- the video signal from the background video material registration system 55 is supplied to the MP EG 2 video encoder 56, and after being encoded, the MP E Registered in the G2 video data server 57.
- the MPEG2 video data registered in the MPEG2 video server is transmitted to the MPEG2 video data transmission system 58, where it is packetized and supplied to the multiplexer 44.
- the MIDI data bucket from the MIDI data transmission system 43 and the MPEG audio transmission system
- the output of the multiplexer 44 is sent to the radio wave transmission system 59, where it is subjected to error correction coding such as convolutional code, Reed-Solomon code, QP
- FIG. 3 shows an example of a detailed configuration of a receiver 60A in which the receiving device 5 and the decoder 6 are integrally formed.
- the signal received by the satellite broadcast antenna is supplied via an input terminal T1 to a receiving device 5 composed of a front end 61, a descrambler 62, and a transport IC (demultiplexer) 63.
- the received signal input to the input terminal T 1 is supplied to the front end 61.
- the front end 61 consists of a tuner, a QPSK demodulator, and an error correction circuit.
- the tuner in the front end 61 selects a signal of a predetermined carrier frequency from the received signals based on a setting signal from a control CPU (Central Processing Unit) 70.
- the received signal is demodulated in the QPSK demodulator, and further, error correction is performed.
- the circuit performs error correction processing such as Viterbi decoding and Reed-Solomon code, and outputs a scrambled MPEG transport stream.
- the output of the front end 61 is supplied to a descrambler 62.
- the CPU 70 compares the reception qualification information included in the reception signal with the identification information of the receiver stored in the IC card 74 inserted in the IC slot 73 and receives the reception signal. It determines whether the signal was sent to the receiver itself. If the received eligibility information included in the received signal matches the receiver identification information stored in the IC card 74, the received signal is sent to the receiver itself. Then, a control signal is generated so that the descrambler 62 performs descrambling processing. Conversely, if the reception qualification information included in the received signal does not match the identification information of the receiver stored in the IC card 74, the received signal is sent to the receiver. Recognizes that this is not the case and does not perform descrambling.
- the descrambled MPEG transport stream is sent to the transport IC 63.
- the transport IC 63 separates a desired transport packet from the stream from the descrambler 62 based on a command from the CPU 70.
- a transport packet header (PID) indicating the type of data to be transmitted is provided in the header of the transport packet.
- the transport IC 63 detects the PID and transmits the MPEG-2 video data.
- the packet is supplied to the MPEG 2 video decoder 68, and the transport packet for transmitting the MPEG audio data is supplied to the MPEG audio decoder 64.
- the receiver 60A shown in Fig. 3 is used for ATRAC audio data and MID Since it does not support I data, the transport packets transmitting these data are not separated by the transport IC 63, and the data is discarded.
- the MPEG2 video decoder 68 receives the transport bucket of MPEG2 video data from the transport IC 63, performs MPEG2 video decoding processing, and converts the video data before data compression. Form. This video data is supplied to an NTSC conversion circuit 69, which converts the video data into a composite video signal and an analog signal. The output of the NTSC conversion circuit 69 is output from the analog video output terminal T2 to the karaoke device 7 as a background video signal.
- the MPEG audio decoder 64 receives the transport bucket of MPEG audio data from the transport IC 63 and performs audio decoding processing of the MPEG audio system to form audio data before data compression.
- the decoded audio data is converted to an analog audio signal by a DA converter 65, and then output from the analog audio output terminals T3 and T4 to the karaoke device 7.
- the MPEG audio decoder 64 The decoded audio data may be output to the karaoke device 7 via the optical digital output interface.
- the transport IC 63 separates the voice additional information packet included in the transport stream and supplies the packet to the CPU 70.
- the CPU 70 processes the supplied audio additional information and superimposes on the background video signal decoded by the MPEG2 video decoder 68.
- a lyric button shown in FIG.
- the text data of the lyrics transmitted as the additional audio information is supplied from the CPU 70 to the MPEG 2 video decoder 68.
- superimpose processing is performed using the ⁇ SD (On Screen Display) function of the MPEG video decoder 68.
- ⁇ SD On Screen Display
- the receiver 60A is provided with a modem 75 (corresponding to the request communication terminal 9) connected to the CPU 70. Through this modem, information indicating the song identification number of the requested song and the decodable compression method (MPEG audio in the case of FIG. 3) is transmitted via the public line 10 as described later. The data is transmitted to the data distribution control device 3.
- a modem 75 corresponding to the request communication terminal 9
- MPEG audio MPEG audio in the case of FIG. 3
- IEEE 1394 interface 76 is connected to the transport IC 63.
- IEEE1394 is a bidirectional serial interface that can transmit large amounts of data and commands at high speed. The music data can be transmitted and received to and from the storage device 8 via the IEEE1394 interface 76.
- the transport packet transmitting the MPEG2 video data separated in the transport IC 63, the transport packet transmitting the MPEG audio data, and the transport packet transmitting the audio additional information are:
- the data is transmitted to the IEEE 1394 interface 76, subjected to a predetermined bucket processing for transmission on a serial path, and then transmitted to the storage device 8.
- the storage device 8 is composed of an IEEE1394 interface 80 and a storage medium 81.
- Receiver 60 A The data transmitted on the IEEE 1394 path is supplied to the IEEE 1394 interface 80 and is depacketized.
- a storage device is a storage device that transmits depacketized MPEG2 video data, a transport packet that transmits MPEG audio data, and a transport that transmits additional audio information. Recorded in the storage medium 81 under the control of a controller (not shown) in the storage medium 8.
- the CPU 70 transmits the requested music data to the storage medium 81.
- a command to check whether the data is recorded is generated and transmitted to the storage device 8 through the IEEE1394 interface 76.
- the controller (not shown) of the storage device 8 receives this command via the IEEE 1394 interface 80, and determines whether the requested music is recorded on the storage medium 81. Check the result and send the result to the receiver 60 via the IE EE1394 interface. Let 70 know. In other words, if it is detected that the requested music data is recorded on the storage medium 81, the fact is notified to the CPU of the receiver 70 via the IEEE 1394 interface 80.
- the audio additional information including the MPEG audio data of the music, the MPEG2 video data as the background video, the lyrics, etc. is read from the storage medium 81, and the IEEE1394 interface 80 is read.
- the receiver 6 OA can output the MPEG audio data and MPEG 2 video of the music sent from the storage device 8.
- the data and voice additional information are supplied to the transport IC 63.
- the transport IC 63 identifies the PID as described above and supplies the MPEG audio data and the MPEG2 video data to each of the decoders 64 and 68, and supplies the audio additional information to the CPU 70.
- the CPU 70 requests the distribution of the music data via the modem 75.
- FIG. 4 shows another example of the detailed configuration of the receiver 60B in which the receiving device 5 and the decoder 6 are integrally configured.
- the same components as those in FIG. 3 are denoted by the same reference numerals, and description thereof is omitted.
- the receiver 60B shown in FIG. 4 is provided with an ATRAC audio decoder 90 instead of the MPEG audio decoder 64 in FIG.
- the configuration of the other parts is the same as that of receiver 6OA in FIG.
- the transport IC 63 detects the PID, and the transport bucket for transmitting the MPEG2 video data is supplied to the MPEG2 video decoder 68, and the transport bucket for transmitting the ATRAC audio data is transmitted. Supply to ATRAC audio decoder 90. Since the receiver 60B in FIG. 4 does not support MPEG audio data or MIDI data, the transport packets transmitting these data are not separated by the transport IC 63, and the data is discarded. Is performed.
- ATRAC audio decoder 90 is a transport IC 63 It receives the ATRAC transport data transport packet and performs ATRAC audio decoding processing to form audio data before data compression. Performs decoded audio processing to form audio data before data compression.
- the decoded audio data is converted to an analog audio signal by the D / A converter 65, and then output from the analog audio output terminals T3 and T4 to the karaoke device 7.
- the audio data decoded by the ATRAC audio decoder 90 may be output to the karaoke device 7 via an optical digital output interface.
- the receiver 60B is provided with a modem 75 (corresponding to the request communication terminal 9) connected to the CPU 70 as in the case of FIG. Through this modem, information indicating the song identification number of the requested song and the decodable compression method (ATRAC audio in the case of FIG. 3) is controlled via the public line 10 for data distribution. Transmitted to device 3.
- an IEEE 1394 interface 76 is connected to the transport IC 63, and ATRAC audio data, MPEG 2 video data, and audio are communicated with the storage device 8 as in the case of FIG. Additional information can be exchanged.
- FIG. 5 shows still another example of the detailed configuration of the receiver 60C in which the receiving device 5 and the decoder 6 are integrally configured.
- the same components as those in FIGS. 3 and 4 are denoted by the same reference numerals, and description thereof will be omitted.
- a MIDI data processing unit 100 is provided instead of the MPEG audio decoder 64 and the ATRAC audio decoder 90 in FIGS. 3 and 4.
- the configuration of the other parts is the same as the receivers 60A and 60B in FIGS. 3 and 4.
- the transport IC 63 detects the PID, and the transport bucket for transmitting the MPEG2 video data is supplied to the MPEG2 video decoder 68, and the transport bucket for transmitting the MIDI data is the MIDI data. This is supplied to the processing unit 100. Since the receiver 60C in FIG. 5 does not support MPEG audio data or ATRAC audio data, the transport packets transmitting these data are not separated by the transport IC 63, and the data is not separated. Discarded.
- the MIDI data processing unit 100 receives the transport bucket of the MIDI data from the transport IC 63, performs audio processing, and outputs the audio signal from the analog audio output terminals T3 and T4 to the karaoke device. Output to 7.
- the receiver 60C is provided with a modem 75 (corresponding to the request communication terminal 9) connected to the CPU 70 as in the case of FIGS. 3 and 4. Through this modem, information indicating the song identification number of the requested song and the decodable compression method (MIDI data in the case of FIG. 3) is transmitted via the public line 10 to the data distribution control device 3. Transmitted to. Further, an IEEE 1394 interface 76 is connected to the transport IC 63, and MIDI data, MPEG2 video data, and audio additional information are exchanged with the storage device 8 as in the case of FIG. Can be exchanged.
- Fig. 2 is a flowchart of the operation on the receiver side that receives compressed music data. This flowchart is common to the receivers 6OA, 60B, and 60C described with reference to FIGS. 3, 4, and 5.
- step S1 the user selects a request music with the receiver 60. In other words, the user can read a book with a music list By inputting an identification number assigned to a desired music piece into the receiver 6 by the remote controller 71 with reference to, the request music piece can be selected.
- step S2 it is determined whether or not the music data of the selected request music exists in the storage device 8 in which the music data is stored. If there is music data in the storage device 8, the process proceeds to step S6. If there is no music data, the process proceeds to step S3.
- step S3 since there was no music data of the requested music in the storage device 8, a request specifying the identification number of the music and a reproducible compression method was made by the request communication terminal 9 via the telephone line.
- Request to the data distribution control device 3 via the public line 10 such as In step S4, after the request, the receiver 60 waits until the target music data can be received.
- step S5 when the music data is distributed, it is checked whether or not the music data is complete.If it is determined that the music data is complete, the process proceeds to step S6.If it is determined that the music data is incomplete, the process proceeds to step S8. I do.
- step S8 the selected music is again requested from the request communication terminal 9, and the process waits until the receiver 60 can receive the desired music data (step S4). If the distributed music data is complete data, the compression method is checked in step S6, and the decoder 6 performs expansion processing. In step S7, the expanded music data is reproduced by the karaoke device 7.
- FIG. 7 is a flowchart showing the operation of an apparatus on the broadcast station side for delivering compressed music data as an example.
- the data distribution control device 3 automatically distributes music data such as a new musical score.
- step S12 it is checked whether the request has arrived at data distribution control device 3 via public line 10. If the request has not arrived, go to step S11 and check if the request has arrived. If so, control is passed to step S13.
- step S13 music data of the specified compression method is searched from the music server 2 and extracted.
- the extracted music data is distributed via the digital satellite broadcasting equipment 1.
- FIG. 8 shows an example of the structure of request data transmitted from the request communication terminal 9 to the data distribution control device 3 via the public line 10.
- request data a command 21 indicating the request, an identification number 22 of the music selected by the user, and compression method specification data 23 that can be reproduced on the karaoke apparatus side are specified.
- the identification number 24 of the karaoke device (which is stored in the IC card 74) for identifying the receivable Karaoke device when the requested music data is distributed via digital satellite broadcasting. Is transmitted as request data.
- FIG. 9 shows a block diagram of another example of the embodiment of the present invention.
- the music data compressed in advance by a plurality of compression methods is stored in the music server, and the requested music is searched from the music stored in the music server. Instead, it is compressed and transmitted in real time using the specified compression method.
- the music server 14 stores the uncompressed music signal, and searches and extracts the music requested from the music server 14 based on the request from the receiver.
- a plurality of compression encoders 12 provided with different compression methods which are provided so that music data can be distributed by the specified compression method, are selected by the selection switcher 13 and compressed and transmitted by the specified compression method. It is done so.
- the music data compressed in this way is distributed to the requesting receiver via the digital satellite broadcasting equipment 1.
- an appropriate one of the decoders 6 corresponding to a plurality of different compression methods is selected. Is selected by the selection switcher 15_.
- the received music data is decompressed and supplied to the karaoke device 7.
- the received music data is further supplied to the storage device 8 and stored.
- FIG. 10 shows a detailed configuration of a transmitting station in a music distribution system to which another embodiment of the present invention is applied.
- the MIDI data generated by the MIDI data generation device 41 is registered in the MIDI data server 42.
- the MIDI data registered in the MIDI data server 42 is sent to the MIDI data transmission system 43 and is packetized and sent to the multiplexer 44.
- the encoding processing is performed in advance and registered in the MIDI data server 42.
- An uncompressed music signal is registered in the music material registration system 45 (corresponding to 14 in FIG. 9), and the music signal from the music material registration system 45 is supplied to the selection switcher. After being supplied to MP EG audio coder 46 and AT RAC audio coder 49 via 1 3 and encoded respectively, they are supplied to MP EG audio transmission system 48 and AT RAC audio transmission system 51. It is sent to the multiplexer 44 after being packetized here.
- the switching signal from the data distribution control device 3 (FIG. 9) is supplied to the selection switching device 13, and in response to this switching signal, the music signal from the music material registration system 45 is selectively MP.
- the EG audio encoder 46 or the ATRAC audio encoder 49 is supplied.
- the sound additional information such as lyrics and music information from the sound additional information registration system 52 is registered in the sound additional information database 53.
- voice The additional audio information registered in the additional information database 53 is sent to the additional audio information transmitting system 54, where it is packetized, and then sent to the multiplexer 44.
- the video signal from the background video material registration system 55 is supplied to the MPEG2 video encoder 56, encoded, and registered in the MPEG2 video data server 57.
- the MPEG2 video data registered in the MPEG2 video data server is sent to the MPEG2 video data transmission system 58, where it is packetized and supplied to the multiplexer 44.
- a MIDI data bucket from the MIDI data transmission system 49, an MPEG audio bucket from the MPEG audio transmission system 48, and an ATRAC audio bucket from the ATRAC audio transmission system 51 The voice additional information bucket from the voice additional information transmission system 54 and the MPEG2 data bucket from the MPEG2 video data transmission system 58 are time-division multiplexed and encrypted using a scramble key. Is done.
- the output of the multiplexer 44 is sent to the radio wave transmission system 59, where it undergoes processing such as convolutional code, error correction coding such as Reed-Solomon code, QPSK modulation, and frequency conversion, and then is sent to the satellite 4 from the antenna. Sent.
- FIG. 11 shows an example of a detailed configuration of a receiver 60D in which another example of the embodiment of the present invention is applied, in which a receiving device 5 and a decoder 6 are integrally formed.
- the same components as those in FIGS. 3, 4, and 5 are denoted by the same reference numerals, and description thereof will be omitted.
- the transport IC 63 selects a desired transport from the streams from the descrambler 62 based on a command from the CPU 70. It separates packets.
- the header of the transport packet is provided with a packet identifier (PID) indicating the type of transmission data.
- PID packet identifier
- the transport IC 63 detects this PID, and the transport packet for transmitting the MPEG2 video data is supplied to the MPEG2 video decoder 68, and the transport packet for transmitting the additional audio information is transmitted to the transport packet C.
- Supply to PU 70 The CPU 70 processes the supplied audio additional information and superposes on the background video signal decoded by the MPEG2 video decoder 68.
- the CPU 70 controls the selection changeover devices 15 and 77 so as to select an audio decoder corresponding to the compression method of the requested music.
- the MPEG audio decoder 64 is selected
- the ATRA C audio decoder 9 is selected.
- the selection switches 15 and 77 are controlled so that the MIDI data processing unit 100 is selected.
- the MPEG audio decoder 64 receives the transport packet of the MPEG audio data from the selection switcher 15 and performs MPE audio decoding processing to form audio data before data compression. I do.
- the decoded audio data is converted into an analog audio signal by the DA converter 65-2, and then supplied to the selection switch 77.
- the ATRAC audio decoder 90 receives the transport packet of the ATRAC audio data from the selection switcher 15 and performs ATRAC audio decoding processing to form audio data before data compression.
- the decoded audio data is After being converted to an analog audio signal by the converter 65_1, it is supplied to the selection switch 77.
- the MIDI data processing unit 100 receives the transport bucket of the MIDI data from the selection switch 15, performs audio processing, and supplies an output signal to the selection switch 77.
- the analog audio signal supplied to the selection switch 77 is output to the karaoke apparatus 7 from the analog audio output terminals T3, # 4.
- the receiver 60D is provided with a modem 75 (corresponding to the request communication terminal 9) connected to the CPU 70. Via this modem, information indicating the song identification number of the requested song and the desired compression method (in FIG. 3, MPEG audio) is transmitted via the public line 10 to the data distribution control device. Transmitted to 3.
- an IE 1394 interface 76 is connected to the transport IC 63.
- a transport packet transmitting MPEG2 video data separated by the transport IC 63, a transport packet transmitting MPEG audio data or ATRAC audio data or MIDI data, and additional audio information The transport bucket is transmitted to the IEEE 1394 interface 76, subjected to a predetermined bucket processing for transmission on the serial path, and then transmitted to the storage device 8. Recorded on the storage media 81.
- the CPU 70 stores the requested music data in the storage media 8.
- a command for checking whether or not the information is recorded in 1 is generated and transmitted to the storage device 8 through the interface 76 of IEEE1394.
- Stre The controller (not shown) of the storage device 8 receives this command via the IEEE 1394 interface 80, and determines whether or not the requested music is recorded on the storage medium 81. Is checked, and the result is notified to the CPU 70 of the receiver 60 A via the IEEE1394 interface. In other words, if it is detected that the requested music data is recorded on the storage medium 81, the fact is notified to the CPU 70 of the receiver 70 via the IEEE 1394 interface 80.
- the audio additional information including the audio data of the music (compressed by MPEG audio, ATRAC audio, or MIDI data), the MPEG2 video data as the background video, and the lyrics are stored.
- the data is read from the media 81 and transmitted to the receiver 60D via the IEEE1394 interface 80.
- the request music data is not recorded in the storage medium 81, the fact is notified to the CPU 70 of the receiver 60D via the IEEE 1394 interface 80.
- the receiver 60D transmits the audio data of the music transmitted from the storage device 8 and the video data of the MPEG2.
- the audio additional information is supplied to the transport IC 63.
- the transport IC 63 supplies the MPEG 2 video data to the MPEG video decoder 68 by identifying the PID, and supplies the audio additional information to the CPU 70.
- the CPU 70 controls the selection switches 14 and 77 based on the compression identification information supplied from the transport IC 63. In other words, if the audio data transmitted from the IEEE1394 interface 76 is of the MPEG audio compression method, the MPEG audio decoder 64 should be selected, and the ATRAC audio decoder should be selected.
- FIG. 12 is a flowchart of an example of an operation on the receiver side that receives compressed music data.
- step S21 the user selects a request song on the receiver 7. The method of selecting this request music is the same as in the above example.
- step S22 the compression method of the distributed music data is specified. Note that the sound quality of the music may differ depending on the specified compression method.
- step S23 it is searched whether the selected music data is stored in the storage device 8. If the music data is stored in the storage device 8, the process proceeds to step S27. If no music data has been stored, the process proceeds to step S24.
- step S24 the request specifying the identification number of the music and the compression method for which the distribution is requested is transmitted by the request communication terminal 9 to the data distribution control device 3 via the public line 10.
- step S25 the process waits until the requested music data can be received by the receiving device 5.
- step S26 when the music data is distributed, it is checked whether or not the data is complete. If determined to be, the process proceeds to step S27, and if determined to be incomplete, the process proceeds to step S29.
- step S29 since the data is incomplete, the music piece selected again by the request communication terminal 9 is requested, and the process proceeds to step S25.
- step S27 the decoder 6 corresponding to the compression method of the received music data is selected by the selection switcher 15 to expand the music data.
- step S28 the expanded music data is reproduced by the karaoke device 7.
- FIG. 13 is a flowchart of an example of the operation of the broadcasting station that distributes the compressed music data.
- step S31 when there is no music request, the data distribution control device 3 automatically distributes music data such as new music.
- step S32 it is confirmed whether or not the music request has arrived at data distribution control device 3 via public line 10. If the request does not come, the process proceeds to step S31, and if the request comes, the process proceeds to step S33.
- step S33 the music requested by the request is searched from the music server 14 and extracted.
- the extracted music data is selected via the selection switch 13 to the compression encoder 12 corresponding to the requested compression method, and the music signal extracted by the requested compression method is selected. Compress.
- step S35 the music data compressed in this way is distributed to the requested radio device via the digital satellite broadcasting equipment 1.
- the music server 2 is searched first, and if there is music data of the requested compression method, the music data is requested. To a karaoke device You. If there is no music data in the compression method requested by the music server 2, music is searched from the music server 14 and extracted, and the data compression encoder 12 corresponding to the requested compression method is selected and compressed. After that, the music data is distributed to the karaoke device that has requested.
- a public line is used when making a request for music from the karaoke apparatus to the distribution center.
- a television receiver is used as a terminal, and the terminal is connected to the information center via the public line network.
- a conversational image information system (CAPTAIN: Character And Pattern Telephone Access Information Network) that provides image information such as characters and figures in response to user requests.
- the videotex network used in the above may be used.
- a public line number may be set for each compression method requested by the karaoke apparatus. At this time, since the music number input to the karaoke apparatus by the operator also differs for each compression method, the number of the public line may be set according to the compression method.
- music data for karaoke can be easily created because the original music can be used as it is. Furthermore, it is possible to sing with the original music without losing the atmosphere of the music.
- the trouble of inputting when creating MIDI data is eliminated, and data input errors can be prevented.
- music data can be created without a person having specialized skills.
- the period for creating data can be shortened.
- music data can be uniformly reproduced regardless of the function and ability of the MIDI sound source on the karaoke apparatus side.
- the compression method and MID Since the data format such as I is delivered in the specified format, it is possible to send data that is compatible with the functions of the power locator device.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Telephonic Communication Services (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51077499A JP4068667B2 (ja) | 1997-07-29 | 1998-07-28 | 楽曲配信装置、楽曲受信装置、楽曲配信方法、楽曲受信方法および楽曲配信システム |
US09/269,459 US6271455B1 (en) | 1997-07-29 | 1998-07-28 | Music piece distributing apparatus, music piece receiving apparatus, music piece distributing method, music piece receiving method, and music piece distributing system |
EP98933956A EP0953965B1 (en) | 1997-07-29 | 1998-07-28 | Music transmitting device, music receiving device, music transmitting method, music receiving method, and music transmitting system |
DE69826241T DE69826241T2 (de) | 1997-07-29 | 1998-07-28 | Vorrichtung zur Übertragung und zum Empfang von Musik, Verfahren zur Übertragung und zum Empfang von Musik und System zur Übertragung von Musik |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20286797 | 1997-07-29 | ||
JP9/202867 | 1997-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999006991A1 true WO1999006991A1 (fr) | 1999-02-11 |
Family
ID=16464518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/003349 WO1999006991A1 (fr) | 1997-07-29 | 1998-07-28 | Dispositifs d'emission et de reception de musique, techniques afferentes et systeme d'emission musicale |
Country Status (6)
Country | Link |
---|---|
US (1) | US6271455B1 (ja) |
EP (1) | EP0953965B1 (ja) |
JP (1) | JP4068667B2 (ja) |
KR (1) | KR20000068642A (ja) |
DE (1) | DE69826241T2 (ja) |
WO (1) | WO1999006991A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
EP0953965A1 (en) | 1999-11-03 |
US6271455B1 (en) | 2001-08-07 |
JP4068667B2 (ja) | 2008-03-26 |
DE69826241T2 (de) | 2005-10-13 |
EP0953965A4 (en) | 2000-12-13 |
EP0953965B1 (en) | 2004-09-15 |
DE69826241D1 (de) | 2004-10-21 |
KR20000068642A (ko) | 2000-11-25 |
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