JP4822531B2 - Digital terrestrial radio music storage method - Google Patents

Description

  The present invention relates to a technique for storing music broadcast by terrestrial digital radio broadcasting.

  Coordination is underway for the start of digital terrestrial radio broadcasting services. Terrestrial digital radio broadcasting is a new broadcasting format that can provide various services such as broadcasting of character data, image data, etc. in addition to high-quality sound equivalent to CD.

  Patent Document 1 below relates to a digital radio broadcast receiving apparatus. This receiving device specifies the genre of music from the additional information included in the broadcast signal, and plays back the received music with settings suitable for the genre. In this way, unlike conventional analog radio broadcasting, digital radio broadcasting can receive various additional information by a receiving device, and can develop various services for users. .

  Further, Non-Patent Document 1 below introduces a service for discriminating a song being played from the phrase of the song being played. A user who uses this service collects the reproduced sound of the music with the microphone of the mobile phone and transfers the acquired audio data to the server. In the server, the music is specified from the transferred audio data, and the data for one specified music is transferred to the user's mobile phone.

JP 2006-109233 A “Let's use search”, KDDI Corporation, [Search on November 1, 2006], Internet <URL: http://www.au.kddi.com/manual/w41sa/music/music06.html>

  The music transmitted by terrestrial digital radio broadcasting has high sound quality. Therefore, the user's desire to store and listen to the music will also increase.

  The conventional air check operation in analog radio broadcasting has never been convenient. That is, basically, since the start and end of recording of the music depend on the user's operation, the operation is troublesome for the user. Even when the entire program broadcast is recorded, it is necessary to edit it later.

  In the said nonpatent literature 1, even if it is a music which a user does not know a music title, music data can be downloaded by comparatively simple operation. Another feature is that a service can be received using a mobile phone. However, the data download service using a mobile phone has a problem that the charge is still high. In addition, there is a problem that a long time is spent for downloading. In particular, in the case of high-quality music data, the cost and time for downloading are both burdensome for the user.

  Also, terrestrial digital radio broadcasting has a problem in that the rights of copyright holders and the like cannot be protected if free copying is allowed due to its high sound quality. In other words, in the conventional analog radio broadcasting, the sound quality of the music air-checked by the user is not so high. Therefore, it was unlikely that a copy of the air-checked music would be available, affecting the sales of records and CDs. However, for terrestrial digital radio broadcasting, that point needs to be fully considered.

  Therefore, it is an object of the present invention to provide a technique for storing music broadcast by terrestrial digital radio broadcasting while ensuring the convenience of the user and protecting the copyright holder.

In order to solve the above-mentioned problem, the invention described in claim 1 is a method for receiving a one-segment digital terrestrial radio broadcast and storing the music, wherein a) a broadcast signal including the music is received by a ring memory And b) a step of transmitting a part of the data of the currently received music stored in the ring memory to the server when receiving a storage instruction during reception of the music in the receiver. And c) the server identifies the music based on the received partial data of the music, and records the first data recorded for the first predetermined period of the specified music and the predetermined time at the end of the specified music and transmitting the a termination data to the receiver, d) at the receiver, on the basis of the start data and end data received from the server, the previous music data stored in the ring memory And identifying the termination, characterized in that it comprises the the steps of storing in the storage memory one piece of music data of the music specified.

The invention according to claim 2 is a method for receiving a one-segment terrestrial digital radio broadcast and storing the music, a) a step of constantly recording a broadcast signal including the music in a ring memory, and b) a music. If a storage instruction is received during reception, a part of the data currently being received stored in the ring memory is transmitted to the server, and c) one of the music transmitted in step b) from the server identifying the music on the basis of the part of the data, comprising: receiving a first data recording the first predetermined time period of the identified song, and a terminating data recorded for a predetermined period at the end of the specified music, d ) Based on the start data and end data received from the server, the start and end of the music data stored in the ring memory are specified, and the data for one music of the specified music is stored in the storage memory. And a step.

  According to a third aspect of the present invention, in the terrestrial digital radio music storage method according to the first or second aspect, the server has a music database, and a part of data of the received music is being recorded. The music is specified by searching for the music data included in.

  According to a fourth aspect of the present invention, in the terrestrial digital radio music storage method according to any one of the first to third aspects, the step d) may be performed after a billing process related to music purchase is performed. The data is stored in a storage memory.

  According to a fifth aspect of the present invention, in the terrestrial digital radio music storage method according to the fourth aspect of the invention, the charging process includes a copy right state release right purchase process set for the music.

  The music storage method for digital terrestrial radio according to the present invention uses the phrase data included in the broadcast data that is always stored, specifies the music on the server, and obtains the beginning information and end information of the music from the server. Thereby, the user can obtain the music data for one music specified by the head information and the end information from the broadcast data only by instructing the music storage.

  Not all the music data for one music is downloaded from the server, but only the head information and the end information are transferred, so it is possible to save communication costs and communication time.

  Since the receiving device obtains music data to be saved from broadcast data that is constantly recorded, it is possible to efficiently obtain music data.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall view of a digital terrestrial radio broadcast system. The terrestrial digital radio broadcast transmitted from the broadcasting station 2 is received by the receiving device 1. The receiving device 1 may be a dedicated terminal that receives terrestrial digital radio broadcasts, or may be a mobile phone that has a reception function for terrestrial digital radio broadcasts.

  As shown in the figure, the receiving device 1 includes a broadcast signal receiving unit 11, a data communication unit 12, a control unit 13, an operation unit 14, an LCD monitor 15, a speaker 16, a temporary memory 17, and a memory card slot 18. In the figure, the memory card 19 is inserted into the memory card slot 18.

  The broadcast signal receiving unit 11 includes a tuner unit 111 and a decoding unit 112. The tuner unit 111 receives a signal of a predetermined channel from the terrestrial digital radio broadcast signal received via the antenna 113 and outputs the signal to the decoding unit 112. The decoding unit 112 demodulates an OFDM (Orthogonal Frequency Division Multiplexing) modulated broadcast signal and decodes a compressed audio signal and the like.

  There are two types of terrestrial digital radio broadcasting: a broadcasting format that uses one segment of the VHF band and a format that uses three segments. The present invention is mainly used when receiving a one-segment broadcasting signal. It is an invention that can be used. That is, in the three-segment digital radio reception, since the bandwidth is wide, the music batch download process and the like can be performed relatively easily. The present invention provides a technique for efficiently storing music even in a one-segment system having a narrow bandwidth.

  The data communication unit 12 is connected to the data communication network 5 via the antenna 121 and transmits / receives data to / from the music search server 3 and the accounting server 6. The data communication network 5 is an Internet network, for example. Further, when the receiving device 1 is configured by a mobile phone, the data communication network 5 is a network including a mobile phone network, the Internet network, and the like.

  The control unit 13 outputs the broadcast signal decoded by the broadcast signal receiving unit 11 from the speaker 16. Thereby, the user can listen to the terrestrial digital radio broadcast. Various additional information is multiplexed in the broadcast signal of digital radio. The control unit 13 displays the additional information on the LCD monitor 15. Thereby, the user can refer to the music information and the like while listening to the radio broadcast.

  As described above, the receiving device 1 is a device having a digital radio broadcast receiving function and a data communication function. As described above, it is assumed that such a device is realized by providing an extension function to the mobile phone. Since current general mobile phones are small terminals equipped with a data communication function, operation unit, speaker, LCD monitor, built-in memory, memory card, etc., the mobile phone is equipped with a digital radio broadcast receiving function. Thus, the receiving apparatus 1 of the present embodiment has a configuration that can be realized relatively easily.

  FIG. 2 is a diagram showing a recording format of the temporary memory 17. The temporary memory 17 is used as a ring memory. That is, the control unit 13 always records the broadcast data decoded by the broadcast signal receiving unit 11 in the temporary memory 17. First, broadcast data is recorded in the temporary memory 17 in order from the top address, and when the final address is reached, the broadcast data is overwritten and recorded again from the top address. Since the temporary memory 17 needs to temporarily record music data for one song, the temporary memory 17 needs to have a storage size enough to record at least one song. For example, an area where broadcast data of about 10 minutes can be recorded is required.

  FIG. 3 is a functional block diagram of the music search server 3 connected to the data communication network 5. The music search server 3 includes a music database 31, a communication unit 32, a search unit 33, and a music information extraction unit 34.

  The music database 31 is a database that stores music data of various genres. The music database 31 stores a large number of music data created in a format such as the MP3 format.

  The communication unit 32 receives the music search request from the receiving device 1 via the data communication network 5. In addition, the communication unit 32 includes a function of transmitting the result of the music search process executed in the music search server 3 to the receiving device 1.

  The search unit 33 is a functional unit that searches for music by referring to the music database 31 in accordance with the music search request received from the receiving device 1. Specifically, the music search server 3 receives the phrase data FD of unknown music for N seconds from the receiving device 1. The search unit 33 collates the music data stored in the music database 31 with the received phrase data FD, and specifies a music including the received phrase data FD.

  The music information extraction unit 34 is a functional unit that extracts the top data TD and the end data ED from the music data searched by the search unit 33. For example, data for the first 5 seconds and data for the last 5 seconds of the searched music are cut out and extracted. The head data TD and the end data ED extracted by the music information extraction unit 34 are transferred to the receiving device 1 by the communication unit 32. The receiving device 1 uses the transferred head data TD and end data ED to specify the head and end portions of the music stored in the temporary memory 17.

  A flow of music storage processing using the receiving device 1 and the music search server 3 configured as described above will be described with reference to FIG.

  As described above, first, the control unit 13 of the receiving device 1 always records the broadcast data decoded by the broadcast signal receiving unit 11 in the temporary memory 17. At this time, the control unit 13 outputs broadcast sound from the speaker 16 while recording the broadcast data in the temporary memory 17. Therefore, the user can listen to the terrestrial digital radio broadcast.

  In such a state, when the user intends to save the currently playing music, the user operates the operation unit 14 to give a save instruction. When the control unit 13 receives a storage instruction made by the user, the control unit 13 extracts phrase data FD for the past N seconds of the currently recorded music. For example, the phrase data FD for the past 10 seconds are extracted from the point in time when the button is operated. Alternatively, the data for N seconds may be extracted as the phrase data FD starting from the time when the button is operated, or the data for N seconds before and after the time when the button is operated is extracted as the phrase data FD. Also good. Moreover, what is necessary is just to enable the user to set the extraction method of those phrase data FD.

  When the phrase data FD is extracted by the control unit 13, next, the phrase data FD extracted by the data communication unit 12 is transferred to the music search server 3. Here, the network address of the music search server 3 is set in the receiving device 1 in advance. Alternatively, if a server that provides this music search service is operated by a plurality of vendors, the server (service company) may be selected by the user.

  When the music search server 3 receives the phrase data FD by the communication unit 32, the music search server 3 performs a music search process by the search unit 33. Specifically, the phrase data FD transferred from the receiving device 1 and the music data stored in the music database 31 are collated to search for music containing the matching phrase data FD. That is, the music including the phrase transferred from the receiving device 1 is searched for.

  When the search unit 33 searches for a music piece that matches the phrase data FD, the music information extraction unit 34 next extracts the top data TD and the end data ED of the searched music data. Then, the communication unit 32 transfers the extracted leading data TD and terminal data ED to the receiving device 1.

  In addition, you may make it store incidental information regarding the said music in the music database 31 with music data. Then, the communication unit 32 may transfer the accompanying information of the music together with the head data TD and the end data ED of the searched music data to the receiving device 1. The incidental information is, for example, information such as the song title and artist name of the song. Further, concert information by the artist or album information including the searched music may be included.

  In the receiving device 1, the data communication unit 12 receives the top data TD and the end data ED transmitted by the music search server 3. Then, the control unit 13 searches the broadcast data stored in the temporary memory 17 for a data portion that matches the received head data TD and end data ED.

  When the control unit 13 detects a data portion that matches the received head data TD and end data ED in the broadcast data stored in the temporary memory 17, it next confirms the user's intention to purchase the music. The message is displayed on the LCD monitor 15. For example, a message such as “Do you want to buy this song?” Is displayed.

  When an operation for instructing purchase is performed by the user, the control unit 13 firstly, in the broadcast data stored in the temporary memory 17, the data portion that matches the end data ED from the data portion that matches the start data TD. The area up to is overwritten.

  When the receiving device 1 receives the start data TD and the end data ED, there is a case where a song that the user wants to save is still being broadcast. In this case, the control unit 13 cannot detect the termination data ED. When the control unit 13 detects the head data TD but does not detect the end data ED, the control unit 13 continues to write the broadcast data to the temporary memory 17 and continues the search process until the end data ED is detected. To do. Then, when the end data ED is detected, the area from the data portion that matches the head data TD to the data portion that matches the end data ED is set to prohibit overwriting.

  Subsequently, the control unit 13 obtains network address information of the billing server 6 (shown in FIG. 1) to be accessed for billing processing from the billing access information stored in a storage unit (not shown). Then, the control unit 13 accesses the charging server 6 via the data communication network 5 and transmits charging information. When the billing information is transmitted in this way, settlement processing is performed later, and the sales proceeds are distributed to the broadcasting station and the record company.

  When the billing information is transmitted to the billing server 6, the control unit 13 stores the music data temporarily recorded in the temporary memory 17 in the memory card 19. That is, the data for one song specified by the head data TD and the end data ED is stored in the memory card 19. Alternatively, after the billing information is transmitted, the billing confirmation information is received from the billing server 6 and then the music data is stored. In this way, the user can store the music data broadcast on the terrestrial digital radio broadcast in the memory card 19. The user can play and enjoy the music stored in the memory card 19 at any time on the receiving device 1. Alternatively, the stored music can be enjoyed by inserting the memory card 19 into another playback device.

  The control unit 13 saves the music data recorded in the temporary memory 17 in the memory card 19 and then cancels overwriting prohibition of the temporary memory 17. Then, the continuous recording of the broadcast data is started again. As described above, the receiving device 1 according to the present embodiment can store the currently received music in response to the storage instruction given by the user during the music broadcasting while constantly recording the broadcast data. Yes. And since the music part contained in a broadcast signal is specified by the head data TD and the termination | terminus data ED searched by the music search server 3, a user only performs a preservation | save instruction | indication, without performing complicated operation. It is possible to easily store the music currently playing in the memory card 19.

  Then, after the user gives an instruction to save the music, the music search server 3 performs a music search process. Only the head data TD and the end data ED are transferred from the music search server 3. . Therefore, even when the use of the data communication network 5 by the receiving device 1 is based on metered billing, the data transfer fee can be kept very low. In addition, the data transfer time can be shortened. Since the music data stored in the memory card 19 uses broadcast data that is constantly recorded, it is an efficient service form that makes it unnecessary to download music data.

  As described above, music data can be stored in the memory card 19 in the above embodiment, but this music data is generally copyright-protected data. For example, it is assumed that a copy-once restriction is added to a digital radio broadcast signal. In this case, the music purchase procedure may have a plurality of patterns including the copy-once release purchase right.

  One form is the purchase of music while maintaining a copy-once state. That is, the user can store the music on the memory card 19 by the billing process, but cannot copy the music to any other medium.

  Another form includes the purchase of a copy once release key. In this case, the user can copy the music stored in the memory card 19 to another medium.

  Furthermore, another form is a form in which a copy once release key is purchased together with additional information such as lyrics data and jacket image data. In this form, after the accounting process, the lyrics data and album jacket image data of the stored music are downloaded to the receiving device 1. The lyrics data and the album jacket image data may be downloaded from the music search server 3 having the music database 31 or may be in a form using another server. In this case, the user can enjoy the music stored in the memory card 19 by copying it to another medium, or purchase various additional information related to the music.

It is a figure which shows the system configuration | structure of a terrestrial digital radio broadcast, and the functional block of a receiver. It is a figure which shows the recording format with respect to a temporary memory. It is a functional block diagram of the music search server which has a music database. It is a figure which shows a series of flows from a music search process to a preservation | save process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Receiver 2 Broadcasting station 3 Music search server 14 Operation part 15 LCD monitor 17 Temporary memory 19 Memory card

Claims (5)

A method of receiving a one-segment digital terrestrial radio broadcast and storing the music,
a) a step of constantly recording a broadcast signal including music in a ring memory in a receiver;
b) a step of transmitting a part of data of the currently received music stored in the ring memory to the server when receiving a storage instruction during reception of the music in the receiver;
c) The server identifies the music based on a part of the received data of the music, the first data recorded the first predetermined period of the specified music, and the end recorded the predetermined time at the end of the specified music and transmitting the data to the receiver,
d) In the receiver, based on the start data and end data received from the server, the start and end of the music data stored in the ring memory is specified, and the data for the specified music is saved. Storing in the memory for use,
A terrestrial digital radio music storage method comprising: A method of receiving a one-segment digital terrestrial radio broadcast and storing the music,
a) a step of constantly recording a broadcast signal including music in a ring memory;
b) When receiving a save instruction during the reception of the music, a step of transmitting a part of the data of the currently received music stored in the ring memory to the server;
c) From the server that specified the music based on a part of the data of the music transmitted in the step b), the first data recording the first predetermined period of the specified music, and the predetermined period at the end of the specified music Receiving the recorded end data; and
d) Based on the head data and end data received from the server, the head and end of the music data stored in the ring memory are specified, and the data for one music of the specified music is stored in the storage memory. Process,
A terrestrial digital radio music storage method comprising: The terrestrial digital radio music storage method according to claim 1 or 2,
The server stores a music database, and specifies music by searching for music data including a part of data of the received music in the music. The terrestrial digital radio music storage method according to any one of claims 1 to 3,
In the step d), the music data is stored in a storage memory after a billing process related to the music purchase is executed, and the music saving method of the terrestrial radio digital is characterized by the above. In the terrestrial digital radio music storage method according to claim 4,
The terrestrial digital radio music storage method, wherein the charging process includes a copy-once state release right purchase process set for the music.

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