JP2000324066A - Terminal for music specific information, transmission/ reception terminal for music and database system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology which makes a consumer desiring broadcast music not lose the opportunity of purchasing it. SOLUTION: The system is provided with a music broadcast receiver that receives a music broadcast, a memory that stores digital information of the music from the music broadcast received by the music broadcast receiver, a transmitter that transmits the digital information stored in the memory to a database that can specify music from the digital information, a receiver that receives the music specific information sent from the database, and an output device that outputs the music specific information received by the receiver.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital work, which is provided with ID information for identifying the digital work. The present invention relates to a technique for providing the ID information when the user wants it and making it possible to obtain the literary work as needed.

[0002]

2. Description of the Related Art With respect to literary works, particularly music, digital data has rapidly advanced, and various techniques have been proposed from the viewpoint of copyright protection. The so-called “digital watermark” is one of them. The purpose of the digital watermark is to clarify the source of the pirated copy, and to clarify the rights relationship by including the copyright holder information in all sound sources. In the near future, all broadcast works will be digitally watermarked.

(Digital watermarking technology) For details, refer to, for example, Japanese Patent Application No. 8-305370 and Japanese Patent Application No. 8-338768, and here, Japanese Patent Application No. 10-2902.
This will be briefly described with reference to “Outline of Watermark Technology” described in Japanese Patent No. 04. The principle of the digital watermark technique will be described with reference to FIG. 6 in the case of a digital information image.

FIG. 6A is a diagram showing a flow of processing for embedding another information (embedded information) in image information. First, an original image (image information represented by a digital signal) is divided into a plurality of blocks each including n pixels × m pixels (division processing). In the case of a moving image, it is divided for each frame, and each frame is divided into a plurality of blocks. Next, orthogonal transformation such as discrete cosine transformation (DCT transformation) is performed on each of the divided blocks to obtain an n × m frequency component matrix (orthogonal transformation processing).

Prior to embedding the embedding information, an embedding position indicating in which position the embedding information is to be embedded in the frequency component matrix obtained by the orthogonal transformation processing is determined by a random number, and the value of the frequency component is further changed. Is determined, and the embedding position and the change amount are obtained and stored as key information (watermark key). When embedding information is embedded, it is not necessary to embed all of the information in the frequency component matrix for one block, and the embedding information may be embedded across the frequency component matrices of a plurality of blocks. By selecting, for example, a low frequency portion of the frequency component matrix as the embedding position, the embedding can be performed so that it cannot be perceived by humans. Also, by changing the change amount, the difference from the original value of the frequency component matrix can be changed, so that the deterioration of the image quality can be controlled.

The embedding information is embedded (embedding processing) by changing the value of the frequency component matrix of each block based on the embedding position and the amount of change of the key information. Further, the frequency component matrix of each block in which the embedded information is embedded is subjected to inverse orthogonal transform to obtain an image of a plurality of blocks of n pixels × m pixels (inverse orthogonal transform processing). Finally,
A plurality of blocks of images obtained by the inverse orthogonal transform processing are connected to obtain a watermark image in which embedded information is embedded (reconstruction processing).

FIG. 6 (b) is a diagram showing the flow of processing when extracting embedded information from a watermark image. First, a watermark image is divided into a plurality of blocks each including n pixels × m pixels (division processing). Next, orthogonal transformation such as discrete cosine transformation (DCT transformation) is performed on each of the divided blocks,
An nxm frequency component matrix is obtained (orthogonal transformation processing). Further, the embedding position and the amount of change are obtained from the key information used at the time of embedding, and the embedding information is extracted from the frequency component matrix of each block (extraction process).

When the digital information is audio information, the specific processing method at the time of embedding and taking out is different from that of the image information. Embedding information is embedded, its position information and the like are used as key information, and embedding information can be embedded and extracted based on this key information. As described above, according to the digital watermark technology, the embedded information cannot be extracted without the key information used at the time of embedding. Also, since the embedded information in the key information is created by random numbers, it is not fixed, and it is difficult to decode the embedded information. Also,
By devising the embedding position, embedding information can be embedded so that humans cannot perceive it. Further, the degree of deterioration of data quality can be controlled by changing the change amount.

(Application of Watermarking Technology to Billing System) By using the above watermarking technology, the following broadcasting billing form can be realized. This will be described with reference to FIG. First, it is assumed that there is a broadcasting station provided with the watermark embedding device of the digital watermark technology described above. It is assumed that the broadcast station broadcasts standard digital music that can be received by all receivers, but that the digital music is broadcast with additional information (for example, information for improving audio quality) embedded in the digital music.

[0010] Then, upon receiving a request from the receiver, the broadcasting station encrypts the watermark key used in the embedding process using a public key, and distributes the watermark key to the receiver by communication or the like. At this time, the watermark key at the time of the embedding process is periodically changed, encrypted, and delivered to the receiver. The change and redistribution of the watermark key at regular intervals can be used as billing information corresponding to the usage time of the additional information.

(Recording method of copy history) As an application example of the digital watermark, various methods have been proposed as a recording method of a copy history for post-discovery of an illegal copy.
It is unpredictable which method will be generalized or standardized, but none of the essence of being a technique for preventing fraudulent technology has changed.

[0012]

[Problems to be Solved by the Invention] (Problems in the distribution form of music) In order to find potential consumers in the distribution of music, there is a method of broadcasting the music to be sold through radio or cable broadcasting. General. By the way, in order to sell a music piece, information for specifying the music piece, for example, the name of the music piece, the name of the player, the lyrics of the music piece, or the name of the composer are required. Therefore, a potential consumer who wants to buy this song through a radio broadcast or the like must remember or write down information for identifying the song.

However, in a radio broadcast, information for specifying a music, such as a music title, has only an announcement before and after the broadcast. Many consumers overlook this and miss out on buying. Recently, according to radio receivers that can transmit teletext as well as audio as "visible radio" and receive the teletext, information for specifying the music played by the teletext is displayed on the LCD screen. Check
It can be used at the time of purchase, such as by taking notes.

[0014] However, the inconvenience of requiring a memo cannot be eliminated. (Usage Method of Digital Watermarking Technology) Digital watermarking technology is a technology conceived to identify a broadcast sound source from a duplication technology that does not deteriorate with the digitization of a copyrighted work, or to protect a copyright holder. Therefore, "charging" in a series of distribution systems
It is usually positioned as a mechanism of copy history and a mechanism of copy history for subsequent detection of unauthorized copying. For this reason, only distribution methods that make it impossible to obtain a digital watermarked work have been proposed, and such a method may be imposed on consumers of the work.

(Problems to be solved by the present invention) A problem to be solved by the present invention is to apply a technique of digital watermarking or a technique similar thereto to a conventional distribution form by utilizing it as an ID of a music piece and broadcast the broadcast. It is an object of the present invention to provide a technology that can reduce a user who wants a new music piece from missing a purchase opportunity.

Here, an object of the invention described in claims 1 to 4 is that a technique of digital watermarking or a technique similar thereto is applied to a conventional distribution form by utilizing it as a music ID, and is broadcast. It is an object of the present invention to provide a technology on the viewer side that can reduce a customer who wants a song to lose a chance to purchase. Another object of the present invention is to apply a digital watermarking technique or a technique similar thereto to a conventional distribution form by utilizing a music ID as well as to broadcast a music piece. An object of the present invention is to provide a technology for a database company that can also reduce the chance that a consumer who wants a product misses a purchase opportunity.

It should be noted that the method of using the digital watermarking technique which is not tied to the billing mechanism and the copy history, particularly the method of integrating it with the conventional distribution mechanism, is described below.
It could not be found even by prior art search using PATLIS.

[0018]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. (Claim 1) The invention according to claim 1 is a music broadcast receiving apparatus for receiving a music broadcast, a memory for recording digital information of the music from the music broadcast received by the music broadcast receiving apparatus, and a memory for storing the digital information. Transmitting the received digital information to a database capable of specifying a song from the digital information, a receiving device receiving the song specifying information transmitted from the database, and outputting the song specifying information received by the receiving device The present invention relates to a music identification information terminal device including an output device.

(Definition of terms) "Music broadcasting" may be either analog broadcasting or digital broadcasting. In addition, it includes not only wide-area broadcasting such as FM radio broadcasting, AM radio broadcasting, and satellite digital broadcasting, but also broadcasting in a narrow range such as broadcasting in stores. “Digital information of music” may be any information that can specify the music in addition to information that constitutes a so-called digital watermark. For example, matching of text data of text broadcasting used for FM broadcasting and the like, and multidimensional vector data obtained by measuring the sound pressure of music at predetermined time intervals, and the like.

"Memory" is a readable / writable memory, and is usually a RAM (random access memory).
However, a hard disk may be used. A storage capacity capable of storing the capacity of the “digital information of music” is required at a minimum. For example, in a case where watermark information is repeatedly woven at predetermined time intervals in a song, and when "digital information of the song" is stored together with the song,
It requires a storage capacity capable of storing data for the music performance time longer than the predetermined time. Further, in the case of the sound pressure matching method, when a specific “for example, the first minute” sound pressure is required, a storage capacity and a recording method capable of always recording the last minute or more are required. is there.

The "database" is a database capable of associating the "digital information of music" with information for specifying music. When digital watermarks are used for "digital information of music", music can be specified one-on-one.However, when other digital information is used, or when the recorded digital watermark is incomplete, etc. A plurality of music identification information likely to correspond may be enumerated.

The "output device" depends on the type of music identification information. That is, if the terminal device according to the present invention has a speaker, it is audio information, and if it has a display device such as a liquid crystal or a printer, it is character information. Further, a writing device for a recording medium such as a memory stick may be used.
"Terminal equipment" includes personally owned radio receivers,
It can be realized as a device to which the above-described functions are added, such as a portable player for reproducing MDs, CDs, compact cassettes, and the like, and a set-top box that can be connected to the Internet by connecting to a television receiver.

(Operation) First, the music broadcast receiving device of the terminal device according to the present invention receives a music broadcast, and the memory records digital information of the music from the music broadcast received by the music broadcast receiving device. Then, the transmitting device transmits the digital information recorded in the memory to a database device capable of specifying a song from the digital information.

The database device that has received the digital information specifies a music piece from the digital information. And
The music identification information is transmitted to the terminal device that has transmitted the digital information. In the terminal device, the music identification information transmitted by the database device is received by the reception device, and the music identification information received by the reception device is output by the output device. Then, using the output music identification information, the music identification information is used to purchase the music or to collect new information.

By using the terminal device according to the present invention, it is possible to reduce the trouble of losing a purchase opportunity by eliminating the need for a user of a song to write down the name of the song and the performer of the song. (Claim 2) The invention according to claim 2 is a music broadcast receiving apparatus for receiving a music broadcast, a memory for recording digital information of the music from the music broadcast received by the music broadcast receiving apparatus, and a memory for storing the digital information. Transmitting the digital information to a database that can specify a song from the digital information, a receiving device that receives the song that the database specifies and transmits the song, and a song that the receiving device receives. The present invention relates to a music transmitting / receiving terminal device having an output device for outputting.

(Glossary) "Database" as used herein
May be a single database or a database combining a plurality of databases. For example, it may be a database that can directly identify and extract music from the digital information,
A combination of the database defined in claim 1 and a database capable of extracting music from music identification information may be used.

The "output device" here is an output device necessary for outputting music. For example, if the music is only audio information, it is a speaker, and if it is a combination of audio and video, it is a speaker and a video output device. (Operation) The music broadcast receiving device of the terminal device according to the present invention comprises:
The music broadcast is received, and the memory records digital information of the music from the music broadcast received by the music broadcast receiving device. Then, the transmitting device transmits the digital information recorded in the memory to a database capable of specifying a song from the digital information.

In the database receiving the digital information, the music is specified from the digital information. Then, the music identification information is transmitted to the terminal device that has transmitted the digital information. In the terminal device, the music identification information transmitted from the database is received by the reception device, and the music identification information received by the reception device is output by the output device. Then, using the output music identification information, the music identification information is used to purchase the music or to collect new information.

The terminal device according to the present invention makes it possible to reduce the possibility that a music consumer loses a purchase opportunity by eliminating troublesome notes. (Claim 3) The invention according to claim 3 is a music broadcast receiving device for receiving a music broadcast, a memory for recording digital information of the music from the music broadcast received by the music broadcast receiving device, and a memory for storing the digital information. An ID decoding device for extracting music ID information for specifying a music from the digital information obtained,
An output device for outputting the music ID information extracted by the ID decoding device.

(Explanation of Terms) The present invention is limited to one using digital watermarks as digital information. “Song ID information” is all kinds of information included in the concept of digital watermark. Although embedded in the song, it is not output from the output device or is inaudible to human ears.

An "ID decrypting device" is a device for decrypting information for specifying a musical piece from a digital watermark. In addition to chipping the decryption algorithm (watermark key) in advance,
The decryption algorithm may be of any type, such as one that downloads a decryption algorithm (watermark key) that changes over time from its provider at any time, or that installs it via a recording medium.

(Operation) First, the music broadcast receiving apparatus receives a music broadcast, and the memory records digital information of the music from the music broadcast. Then, the ID decoding device extracts the music ID information for specifying the music from the digital information recorded in the memory. Next, the output device outputs the music ID information extracted by the ID decoding device. Then, music is purchased based on the music ID information.

The terminal device according to the present invention can reduce the possibility of missing a purchase opportunity by eliminating the troublesome memo. (Claim 4) The invention according to claim 4 is a music broadcast receiving apparatus for receiving a music broadcast, a memory for recording digital information of the music from the music broadcast received by the music broadcast receiving apparatus, and a memory for storing the digital information. An ID decoding device for extracting music ID information for specifying a music from the digital information obtained,
A transmitting device that transmits the music ID information extracted by the ID decoding device to a database that can be specified from the music ID information; a receiving device that specifies the music from the database and receives high-quality music that is transmitted; The present invention relates to a music transmitting / receiving terminal device comprising: an output device that outputs a high-quality music received by a receiving device.

(Operation) First, the music broadcast receiving apparatus receives a music broadcast, and the memory records digital information of the music from the music broadcast. Then, the ID decoding device extracts the music ID information for specifying the music from the digital information recorded in the memory. Next, the transmitting device transmits the music ID information extracted by the ID decoding device to a database that can specify the music from the music ID information.

The database specifies the music from the music ID information, transmits the music, and the receiving device of the music transmitting / receiving terminal device according to the present invention receives the music. Then, the output device outputs the music. ADVANTAGE OF THE INVENTION The terminal device which concerns on this invention can reduce missing of a purchase opportunity by eliminating the trouble of a memo.

(Claim 5) The invention according to claim 5 is a receiving device for receiving digital music and receiving digital information of the music when the digital information is transmitted from the terminal device, A database capable of identifying music identification information from the digital information received by the receiving device,
The present invention relates to a music identification information database device including a transmission device capable of transmitting the music identification information specified by the database.

That is, receiving the digital information of the music broadcast transmitted from the terminal device according to the first aspect of the present invention,
This is a database device that transmits music identification information to the terminal device. (Operation) The receiving device of the database device according to the present invention comprises:
Receiving the digital information of the music broadcast received by the terminal device,
The database specifies information for specifying a music piece from the digital information. Then, the music identification information identified in the database is transmitted by the transmission device.

(Claim 6) The invention according to claim 6 is a receiving device for receiving, when digital information of a music is received and the digital information is transmitted from a terminal device, the digital information, A database capable of specifying music from the digital information received by the receiving device, a music database capable of extracting music from the music specifying information specified in the database, and a transmitting device capable of transmitting music extracted from the music database. The present invention relates to a music database device provided with:

That is, receiving the digital information of the music broadcast transmitted from the terminal device according to the second aspect of the present invention,
This is a database device that transmits music to the terminal device. (Operation) The receiving device of the database device according to the present invention comprises:
Receiving the digital information of the music broadcast received by the terminal device,
The music is specified from the digital information by the database. Then, the music piece specified in the database is transmitted by the transmission device.

(Claim 7) According to the invention of claim 7, when the embedded information is transmitted from a terminal device which receives the music and extracts the embedded information from the digital information of the music, the embedded information is received. The present invention relates to a music database device comprising: a receiving device that performs the following operations; a music database that can specify the music from the embedded information received by the receiving device; and a transmission device that can transmit the music specified by the music database.

In other words, the present invention is a database device for receiving digital information of a music broadcast transmitted from a music transmission / reception terminal device and transmitting the music to the transmission / reception terminal device. (Operation) The receiving device of the database device according to the present invention comprises:
The embedded information received and extracted by the terminal device is received. Then, the music database specifies the music from the embedded information, and the transmission device transmits the music.

[0042]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments and drawings. The drawings used here are FIGS. 1 to 5. 1 to 4 are model diagrams from when a viewer receives a music broadcast with a digital watermark to when the music is purchased. FIG. 5 is a model diagram showing a concept of identifying a music piece by matching multi-dimensional vectors of sound pressure at a specific location in the music piece.

(Description Based on FIG. 1) In the embodiment shown in FIG. 1, data exchange in a data center having a broadcast station for broadcasting music, a viewer having a terminal device for receiving music, and an information database relating to music. In the embodiment, the invention is implemented. (Broadcasting station) The broadcasting station is provided with an embedding processing device, and embeds embedded information and a watermark key in music, and broadcasts music with embedded information. As the embedded information, for example, the performer, the date and time of the recording,
There are information on attributes of music such as a lyricist and a composer, and attribute information on broadcasting such as the name of a broadcast station and the broadcast date and time.

The broadcasting mode is digital broadcasting in this embodiment. (Terminal device) A terminal device owned by the viewer includes a music broadcast receiving device for receiving a music broadcast, a memory for recording the music received by the music broadcast receiving device and embedded information of the music, and a memory for recording the information. A transmitting device that transmits music and embedded information to a database that can specify music from the embedded information, a receiving device that receives music specifying information transmitted from the database, and outputs the music specifying information received by the receiving device And a terminal device for music identification information including an output device.

Here, the "memory" is a readable and writable RAM (random access memory). A storage capacity capable of storing the capacity of the above-mentioned "song and its embedded information" is required at a minimum. In the present embodiment, when the embedded information is repeatedly included in the music every predetermined time, the “embedded information of the music” is stored together with the music, so that the data for the music playing time longer than the predetermined time can be stored. Requires capacity.

The "output device" depends on the type of music identification information. That is, if the terminal device according to the present invention has a speaker, it is audio information, and if it has a display device such as a liquid crystal device, it is character information. Further, a writing device for a recording medium such as a memory stick may be used. "Terminal device"
Is a device similar to a portable player that can receive digital broadcasts and reproduce music specific information.
The viewer can purchase the music by going to the multimedia kiosk with the music identification information output from the output device.

(Data Center) The "database"
This is a database capable of associating the “embedded information” with information for specifying a song. An embedded information extracting device for extracting embedded information from the music transmitted from the viewer and the embedded information is provided. It should be noted that the viewer is specified at the stage when the transmission from the viewer is received, and is subject to “charging” if necessary.

When a digital watermark is adopted for "digital information of music", music can be specified one-to-one, but when the digital watermark is incomplete or the like, a plurality of pieces of music specifying information which are likely to correspond are listed. You may be able to. (Operation and Effect) First, the terminal device of the viewer receives the music broadcast, and the memory records the music received by the music broadcast receiving device and the embedded information thereof. Then, the transmitting device transmits the music and the embedded information thereof to the data center.

At the data center receiving the embedded information, the music is specified from the embedded information. Then, the music identification information is transmitted to the terminal device that has transmitted the embedded information. In the terminal device, the music identification information transmitted by the data center is received by the receiving device, and the music identification information received by the receiving device is output by the output device. Then, using the output music identification information, the music identification information is used to purchase the music or to collect new information.

The viewer who owns this terminal device can reduce the chance of missing a purchase opportunity by eliminating the trouble of writing down the title of the music, the performer, and the like. In particular, during the broadcast of a song, it is possible to specify the song if it is recorded in the memory for the time that the embedded information can be recorded, so that it is possible to start listening from the middle of the broadcast or move to another action during the broadcast. There are advantages. Since the terminal device does not have a function of extracting only embedded information from a digital broadcast to be broadcast, the terminal device can be provided simply and relatively inexpensively.

(Description Based on FIG. 2) The embodiment shown in FIG. 2 will be described focusing on differences from the embodiment shown in FIG. First, the data center has a database for stocking the songs themselves specified in the database, in addition to a database for associating the songs with the embedded information.

The terminal device owned by the viewer has a music output device capable of receiving the music itself and reproducing the music. For example, the present invention can be realized as a set-top box that is connected to a television receiver to enable Internet connection. (Explanation based on FIG. 3) The embodiment shown in FIG.
The following mainly describes differences from the embodiment shown in FIG.

The terminal device owned by the viewer shown in FIG. 3 is provided with a device for extracting embedded information. According to this terminal device, embedded information can be extracted from the received music by the embedded information extracting device and output. The viewer brings the output embedded information to a data center provided with a database capable of specifying the music from the embedded information, and purchases the music.

(Description Based on FIG. 4) The embodiment shown in FIG. 4 will be described focusing on the differences from the embodiment described above. The terminal device owned by the viewer shown in FIG. 4 includes a transmitting device and a receiving device in addition to the embedded information extracting device shown in FIG. 3, and includes a music output device as an output device.

Further, two databases in the data center are provided, and a receiving device and a transmitting device are provided. That is, those databases are a database of watermark keys and a database of high-quality music,
The transmitting device transmits high quality music to the viewer. (Description based on FIG. 5) FIG. 5 shows a concept in a case where music is specified by a technique of matching multidimensional vectors.

The sound pressure of a certain music for the first 60 seconds is measured every second and recorded as a 60-dimensional vector. For music to be broadcast, all such 60-dimensional vectors are created and stored in a database. For the broadcasted song A, the viewer
Record 0 seconds in memory. At this time, if the broadcast sound source is digital, a 60-dimensional vector can be obtained as it is.

The music that matches all of the acquired 60-dimensional vectors is searched from the database, one music is specified, and the specific information of the music or the music itself is transmitted to the viewer. In the case of analog broadcasting,
We take in broadcast by line input and remove noise,
Search for an exact match. However, if a completely matching song is not found, a search operation in the database is performed so that some similar songs can be picked up as candidates, so that a plurality of candidates can be transmitted to the viewer. The viewer only has to specify the music desired by himself / herself among the several candidates. Of course, you may choose the best one and send only that.

(Variation) A music broadcast receiving apparatus for receiving a music broadcast with a digital watermark, a memory for recording watermark information of the music from the music broadcast received by the music broadcast receiving apparatus, and a digital ID for extracting music ID information for specifying music from information
A decoding device, a transmission device for transmitting the music ID information extracted by the ID decoding device to a database capable of specifying the quality improvement information of the music from the music ID information, and the database comprising the quality improvement information of the music. Music receiving and receiving terminal, comprising: a receiving device that receives the quality-enhancing information that specifies and transmits the music broadcast; and an output device that uses the quality-enhancing information received by the receiving device to enhance and output the music broadcast. Equipment.

The database includes a receiving device for receiving embedded information extracted from digital information of a music broadcast transmitted from the terminal device, and a watermark corresponding to the embedded information from the embedded information received by the receiving device. The watermark key database device includes a database capable of specifying a key and a transmission device capable of transmitting the watermark key specified in the database.

Here, the "ID decryption device" is a device for decrypting information for specifying music from a digital watermark. In addition to chipping the decryption algorithm (watermark key) in advance, downloading the decryption algorithm (watermark key) that changes over time from the provider at any time, and installing it via a recording medium For example, any method may be used.

The “high quality information” is “embedded information” in a digital watermark. By using this embedded information, the provider of the embedded information can identify the demander, so that charging can be performed, and the demander can improve the quality of the music obtained by the music broadcast with the acquisition of the embedded information. be able to. First, a music broadcast receiving device receives a music broadcast, and a memory records digital information of the music from the music broadcast. Then, the ID decoding device extracts the music ID information for specifying the music from the digital information recorded in the memory. Next, the transmitting device transmits the music ID information extracted by the ID decoding device to a database capable of specifying the quality improvement information of the music from the music ID information.

The database specifies the music from the music ID information, specifies and transmits the quality improvement information of the music, and the music receiving / receiving terminal music receiving apparatus according to the present invention receives the quality improvement information. . Then, the output device increases the quality of the music broadcast using the quality improvement information and outputs the quality. Such a terminal device can reduce missed purchase opportunities by eliminating troublesome memos.

[0063]

According to the invention described in claims 1 to 4, the digital watermarking technique or a technique similar thereto is applied to the conventional distribution form by utilizing it as the music ID, and the broadcast music is broadcast. Viewer technology that can reduce the loss of a purchase opportunity by a consumer who feels that the user wants it.

According to the invention described in claims 5 to 7, a digital watermarking technique or a technique similar thereto is applied to a conventional distribution form by utilizing it as an ID of a music piece. The technology provided by the database company can be provided so that a consumer who wants the selected music can reduce the chance of missing a purchase opportunity.

[Brief description of the drawings]

FIG. 1 is a model diagram from when a viewer receives a music broadcast with a digital watermark until the music is purchased.

FIG. 2 is a model diagram from when a viewer receives a music broadcast with a digital watermark until the music is purchased.

FIG. 3 is a model diagram from when a viewer receives a music broadcast with a digital watermark until the music is purchased.

FIG. 4 is a model diagram from when a viewer receives a music broadcast with a digital watermark until the music is purchased.

FIG. 5 is a model diagram showing a concept of identifying a music piece by matching multi-dimensional vectors of sound pressures at specific locations in the music piece.

FIG. 6 is a diagram showing the principle of a digital watermark technique in the case of a digital information image.

FIG. 7 is a model diagram for realizing a broadcast billing mode using a watermark technique;

Claims (7)

[Claims] A music broadcast receiving apparatus for receiving a music broadcast;
A memory for recording digital information of the song from the song broadcast received by the song broadcast receiving device, a transmission device for transmitting the digital information recorded by the memory to a database capable of specifying the song from the digital information, and the database A terminal device for music identification information, comprising: a receiving device for receiving the music identification information transmitted from the device; and an output device for outputting the music identification information received by the receiving device. 2. A music broadcast receiving device for receiving a music broadcast,
A memory for recording digital information of the song from the song broadcast received by the song broadcast receiving device, a transmission device for transmitting the digital information recorded by the memory to a database capable of specifying the song from the digital information, and the database A terminal device for music identification information, comprising: a receiving device that receives the music that specifies and transmits the music, and an output device that outputs the music that the receiving device receives. 3. A music broadcast receiving device for receiving a music broadcast,
A memory for recording digital information of the song from the song broadcast received by the song broadcast receiving device, an ID decoding device for extracting song ID information for specifying the song from the digital information recorded by the memory, and an ID decoding device And an output device for outputting the music ID information extracted by the terminal. 4. A music broadcast receiving apparatus for receiving a music broadcast,
A memory for recording digital information of the song from the song broadcast received by the song broadcast receiving device, an ID decoding device for extracting song ID information for specifying the song from the digital information recorded by the memory, and an ID decoding device A transmission device for transmitting the music ID information extracted by the music ID information to a database that can be identified from the music ID information, a reception device for identifying the music from the database and receiving a high-quality music transmitted, and a reception device for receiving the high quality music. And an output device for outputting a high-quality music composition. 5. When a music is received and digital information of the music is transmitted from the terminal device,
Music identification comprising: a receiving device for receiving the digital information; a database capable of identifying music identification information from the digital information received by the receiving device; and a transmission device capable of transmitting the music identification information identified by the database Information database device. 6. When a musical piece is received and digital information of the musical piece is transmitted from a terminal device,
A receiving device that receives the digital information, a database that can specify a song from the digital information received by the receiving device, a song database that can extract a song from the song identification information that is identified in the database, and a song database A music database device comprising: a transmission device capable of transmitting the extracted music. 7. A receiving device for receiving embedded information from a terminal device which receives the music and extracts the embedded information from the digital information of the music, the receiving device receiving the embedded information, and the receiving device receives the embedded information. A song database device comprising: a song database capable of specifying a song from embedded information; and a transmitting device capable of transmitting the song specified by the song database.