JP2002314980A - Content selling system and content purchasing unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily sell or purchase a selling object content, e.g. music data. SOLUTION: An digital watermarking embedding unit 4 reads out music data D1 from a recorder 2 and embeds the address data D2 of a selling agency site, selling the music data D1 on the Internet 10, into that music data D1 by digital watermarking technology. A recorder 5 stores the music data D3 embedded with the address and a part D4 of a partially extracted music data embedded with the address. A web server 7 takes in the part D4 of voice data embedded with the address and a digital watermark extraction program D5 so that anyone can download freely through the Internet 10, or a broadcast unit 8 broadcasts the part D4 of voice data embedded with the address and the digital watermark extraction program D5 and further records them on a recording medium 9 for delivery.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sales device and a purchase device for selling contents such as music data and video data.

[0002]

2. Description of the Related Art When selling content such as music,
In the past, content such as the music itself, and additional information such as the song title and singer's name were widely distributed in TV and radio commercials, advertising posters, etc. to stimulate potential purchasers' willingness to purchase and decide to purchase. At first, they had to go to a CD dealer or access a download site on the Internet to confirm that a regular fee was paid before downloading the content for sale. For this purpose, the purchaser separately acquires additional content information that cannot be obtained by simply holding the music data itself, such as the content name such as the song name, the content creator name such as the singer name, and the address of the download site. I had to keep it.

Also, as shown in "Basics of Digital Watermarking-New Protection Technology for Multimedia" (by K. Matsui, Morikita Publishing, pp. 9-13), the types of digital watermarking information are author information and purchaser information. , User information, usage restriction information, top secret information, etc.

Further, as disclosed in Japanese Patent Application Laid-Open No. 10-190343, only an identifier for identifying a content transaction or the like is used as digital watermark data, and other author information and purchaser information, etc. There was also a method of obtaining from another database or the like by an identifier.

[0005]

However, in the conventional method described above, in order to sell the content, it is necessary to inform the content purchase applicant of the content supplementary information such as the song title and the address of the sales site on the Internet. was there. That is, for example, even if the user likes the music heard on the radio and wishes to purchase it, the title of the music is announced before the broadcast of the music or after the music is over, so that the user may miss it.

[0006] Also, even if a program in which the song is broadcast is recorded in order to know the name of the song that the user likes, if the song name is announced before the music is broadcast, it is too late. We had to record the program for quite some time in anticipation. Also, in order to know the song title from the recorded program on the left, it was quite troublesome to listen to the program again and know the song title.

[0007] Further, a purchaser who knows the name of the content desired to be purchased or the creator's name by these methods, obtains the content-related information, and then goes to a CD store.
Had to buy.

[0008] Further, if a purchase is made from a download site on the Internet, the address of the sales site is searched by CM, poster, Internet search, etc. from the above-mentioned content name and creator name, and then the sales target is purchased. We had to download and purchase the content.

[0009] Therefore, an object of the present invention is to provide a content sales system and a content purchase device capable of easily selling or purchasing sales target contents such as music data.

[0010]

In order to solve the above-mentioned problems, according to the present invention, a part or all of a content in which content accompanying information for purchasing a content to be sold is embedded as an electronic watermark is distributed, A digital watermark extraction program for extracting the content accompanying information from the content is also distributed.

In particular, the content accompanying information is an address of a site on the Internet of the content seller.

[0012] The content is distributed by broadcasting.

[0013] Further, the present invention is characterized in that distribution of contents is performed by communication via a network.

[0014] Further, the present invention is characterized in that distribution of contents is performed by recording on a recording medium.

Further, the digital watermark extraction program is distributed by broadcasting.

The digital watermark extraction program is distributed by communication via a network.

Further, the digital watermark extraction program is distributed by recording it on a recording medium.

Also, the contents distributed from the contents sales system and the digital watermark extraction program are inputted, and the contents accompanying information embedded in the contents by the digital watermarking technique is extracted by the digital watermark extraction program. Information necessary for purchasing the content is obtained based on the information, so that the content can be easily purchased.

In particular, the content supplementary information is an address of a site on the Internet of the content distributor, extracts the address embedded in the content by a digital watermarking technique by a digital watermark extracting program, and stores the address in the extracted address. Automatically connect to the content seller's Internet site based on the above,
It is characterized in that the content can be easily purchased.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a configuration of a content sales system according to a first embodiment of the present invention;
And a content purchase device. In the figure, 1 is a content sales system according to the present invention, D1 is music data as digitized sales target content, 2 is a recording device that records music data D1, and D2 is music data D1 sold on the Internet 14. Data 3 as address data as content-attached data indicating an address of a selling site to be sold, a recording device 4 recording address data D2 as data as content-attached,
Is an electronic watermark embedding device having a function of embedding address data D2 read from the recording device 3 into music data D1 read from the recording device 2.

D3 is address-embedded music data in which the address data D2 is embedded as a digital watermark,
Reference numeral 5 denotes a recording device for recording the address-embedded music data D3, D4 denotes a part of the address-embedded music data obtained by cutting out a so-called rust portion of the address-embedded music data D3, and D5 denotes a part of the address-embedded music data D4. Is a digital watermark extraction program for a personal computer for extracting address data D2 as content accompanying data from a computer, and 6 is a recording device in which a digital watermark extraction program D5 is stored in advance.

A web server 7 allows a part D4 of the music data with the embedded address and a digital watermark extraction program D5 to be freely downloaded via the Internet 10, and collects and downloads the music data D1 at a charge. A broadcasting device for broadcasting a part D4 of music data with embedded address and a digital watermark extraction program D5, 9
Is a recording medium such as a CD-ROM in which a part D4 of the address embedded music data and a digital watermark extraction program D5 are recorded.
0 is the Internet, 11 is a part D4 of the broadcasted address embedded music data and a digital watermark extraction program D
5 is a content purchase device such as a personal computer for receiving and reproducing music data 5 to purchase music data. In FIG. 1, the content purchase device 1
1 is provided with a modem, a TA (not shown) or the like so as to be able to communicate via the Internet 10 and a receiving unit (not shown) so as to be able to receive a broadcast signal from the broadcasting device 8. FD and CD-RO
Although it is configured to be able to read data from the recording medium 9 such as M, the present invention does not need to include all three functions, and may include only one function or only two functions. In short, the content purchase device 1
It is sufficient if the data D1 can capture a part D4 of the music data with embedded address and the digital watermark extraction program D5.

Next, the operation will be described. First, the processing of the content sales system 1 until the address data of the selling site of the music data, which is the content accompanying information, is embedded in the music data D1, which is the content to be sold, by an electronic watermark will be described.

The music data D1 to be sold is created and recorded in the recording device 2,
It is assumed that address data D2 such as a URL of a site for selling the music data D1 on the Internet 10 is also recorded in the recording device 3. The digital watermark extracting program D5 stored in the recording device 6 in advance is a digital watermark extracting program that operates on the content purchasing device 11 such as a personal computer. It has a function of reading out the music data D3 and extracting the address data D2.

First, the digital watermark embedding device 4 of the contents sales system 1 embeds the address data D2 of the selling site read from the recording device 3 into the music data D1 read from the recording device 2 by the digital watermarking technique.
The address-embedded music data D3 is created and output to the recording device 5. Here, the digital watermarking technique is a well-known technique, and will not be described in further detail.

In the recording device 5, the digital watermark embedding device 4
In addition to recording the music data D3 with embedded address output from the server, a part of the music data D3 with embedded address is extracted to create a part D4 of the music data with embedded address, and this is also recorded.

The web server 7 fetches and records a part D4 of the voice data with the embedded address and the digital watermark extraction program D5 from the recording device 5, and
Anyone can freely access the homepage of the sales site via the Internet and download it.

Then, the user takes in a part of the music data with the embedded address and the digital watermark extracting program D5 from the web server 7 via the Internet 10 into the content purchase device 11, and the digital watermark extracting program D
5, the address data D2 can be extracted from the part D4 of the address embedded music data.

Also, instead of the web server 7, the broadcasting device 8 may extract the part D4 of the audio data with the embedded address and the digital watermark extraction program D5 from the recording device 5 and broadcast them. In this way, the user fetches a part of the music data with the embedded address and the digital watermark extracting program D5 into the content purchasing device 11 by broadcasting from the broadcasting device 8, and operates the digital watermark extracting program D5. Thus, from the part D4 of the music data with the embedded address, the address data D2
Can be extracted.

Further, without using the web server 7 or the broadcasting device 8, a part D4 of the address embedded data and the digital watermark extracting program D5 are fetched from the recording device 5 into the recording medium 9 such as a CD-ROM. The recording medium 9 may be recorded and distributed for free or for a fee. In this way, the user loads a part of the address embedded music data recorded on the recording medium 9 and the digital watermark extraction program D5 into the content purchase device 11, and operates the digital watermark extraction program D5. From the part D4 of the music data with the embedded address,
The address data D2 can be extracted.

As described above, the user uses the content purchase device 11 to play back and view a part D4 of the music data with the embedded address obtained by the method described above. By operating the digital watermark extraction program D5 on the part D4 of the already-existing music data to extract the address data D2 and accessing the address data D2 of this sales site on the Internet, the music data D1 can be purchased.

For example, the following situation can be considered. For example, using a personal computer or the like having a TV broadcast recording function capable of digital recording, such as a hard disk, as the content purchase device 11, a part of the music data with the address embedded therein of the music data D1 used in the inserted music in the program or the CM. It is assumed that a user who has recorded a program including D4 and subsequently viewed the program has been interested in the music inserted in the program and the music used in the CM, and has decided to purchase a complete song. In this case, for example, the user can select a part D of the music data with the address embedded in the inserted song or CM part.
By operating the digital watermark extraction program D5 in Step 4, the address data D2 of the music sales site is extracted and displayed, so that it can be easily known.

Also, from the part D4 of the music data with the embedded address, the address data D2 of the music sales site is obtained.
May be automatically accessed by using the extracted address data D2 to the music data sales site on the Internet 10. In this way, the music data D1 can be easily purchased. Such a function can be realized even when the broadcasting device 8 uses a data broadcasting function of broadcasting in parallel with video / audio broadcasting. In other words, a program including a part D4 of the music data with the embedded address is broadcast by video / audio broadcasting, while a part D4 of the music data with the embedded address is converted from the part D4 of the music data with the embedded address by data broadcasting broadcast in parallel with the program. A digital watermark extraction program D5 for extracting the address data D2 of the sales site of D1 may be broadcast. When automatically accessing the sales site of the music data D1 on the Internet 10 using the extracted address data D2, a public line such as a telephone line may be used. According to this method, if only the video and audio broadcasts are secured, the necessary data can be easily secured, which is a great advantage.

In addition to extracting the address data D2 of the selling site from the part D4 of the music data with the embedded address by the digital watermark extracting program D5, the address data D2 of the selling site is extracted and then extracted. The site may be automatically accessed based on D2, and the homepage of the purchase source site may be displayed.

In the first embodiment, the address data D2 of the selling site, which is the data accompanying the content, is embedded in the music data D1, which is the content to be sold, by the digital watermarking technique. Not limited to this, embedded in the data accompanying the content other than the address data D2, for example, the content accompanying data useful for sales promotion and promotion, such as the name of the song and the name of the singer attached to the music data D1, the release time, the name of the sales company, and the campaign information. Of course, it is good.

In the above example, the music data D1 is taken as an example of the content to be sold, and content accompanying data such as address data D2 is inserted into the music data D1 by electronic watermarking. However, the present invention is not limited to this. Music data in which a plurality of voices such as a plurality of music and human voices are multiplexed may be treated as content to be sold, and content accompanying data attached to the content to be sold may be embedded by an electronic watermark. Also, if the content to be sold is multimedia data and is composed of video data in addition to audio data, not only the audio data but also audio data such as video data related to the audio data. Of course, a digital watermark may be embedded in the contents to be sold.

Further, in the above example, a part D4 of the music data with the embedded address is broadcast via the web server 7 of the Internet 10 or by the broadcasting device 8, and further recorded on the recording medium 9 and distributed or sold. However, in the present invention, the present invention is not limited to this, and the entire address embedded music data D3 is broadcasted via the web server 7 of the Internet 10 or broadcasted by the broadcast device 8, and furthermore, the recording medium 9
May be recorded and distributed or sold.

In the above example, the part D4 of the music data with the embedded address and the digital watermark extraction program D5
Is stored in one web server 7 or broadcast device 8
Has been described so as to be broadcast at approximately the same time or to be recorded on the same recording medium 9, but the present invention is not limited to this, and a part D4 of the music data with embedded address and a digital watermark extraction program D5 are separated. May be stored on a web server, broadcast at a different time, broadcast by another different broadcasting device, or recorded on a different recording medium.

The part D4 of the audio data with the address embedded therein, which is the content to be sold, and the digital watermark extraction program D5, which is the data accompanying the content, need not be distributed in the same manner as described above. Part D4 of music data and digital watermark extraction program D
The means of distribution and sale may be different, such that one of the five can be distributed and sold via the web server 7 of the Internet 10 and the other can be distributed and sold via broadcast or recording media.

For example, a digital watermark extraction program D5 for extracting the address data D2 from the address embedded audio data D4 while broadcasting a part D4 of the audio data embedded with the address is broadcast from the broadcasting device 8. 7 may be posted on a site on the Internet 10 so that anyone can freely access and download it via the Internet 10, or may be recorded on the recording medium 9 and distributed. In this way, the contents to be sold can be distributed inexpensively and widely by broadcasting, while those who want to purchase the contents to be sold need to send the digital watermark extraction program D5 to the Internet 10.
Download to the content purchase device 11 via
From the part D4 of the audio data with the embedded address by installing from the recording medium 9 or the like, the address data D
2 can be extracted.

A part D4 of the voice data with the embedded address is distributed by the web server 7 so that anyone can freely access the data via the Internet. A digital watermark extraction program D5 for extracting the address data D2 is broadcasted from the broadcasting device 8, recorded on the recording medium 9, and distributed.
Alternatively, a digital watermark extraction program D5 for recording a part D4 of the audio data with the embedded address in the recording medium 9 and distributing the data while extracting the address data D2 as the content accompanying data from the partial D4 of the audio data with the embedded address. Means that the web server 7 is the Internet 1
The information may be posted on a site on the Internet 10 or broadcast from the broadcasting device 8 so that anyone can freely access and download via the Internet 0.

Also, a personal computer or the like is described as an example of the content purchase device 11 for playing back / purchasing the music data 7 with the embedded address, but the web server 7 can be accessed via the Internet 10 or broadcast from the broadcast device 8. Of course, any device other than a personal computer may be used as long as it can receive the data or read data from the recording medium 9.

Although the digital watermark extraction program D5 is the digital watermark extraction program D5 that operates on the content purchase device 11 such as a personal computer, the digital watermark extraction program D5 of the present invention may be operated on a device other than a personal computer. good. Further, the content accompanying data to be embedded in the content to be sold by the digital watermark technology may be extracted using hardware instead of the digital watermark extraction program D5 which is software.

As described above, according to the first embodiment, the contents to be sold such as the music data D1 are added to the address data D2 of the selling site which sells the contents to be sold on the Internet 10, and the like. A digital watermark extraction program D for embedding content accompanying information useful for sales promotion and promotion by digital watermarking technology and extracting the embedded content accompanying information.
5, the content to be sold and the data accompanying the content can be transmitted according to the interface of the content purchase device 11, the specifications, and the like. Can be distributed widely and cheaply.

As a result, the number of people who play and view the contents to be sold such as the music data D1 and the like increases, thereby increasing the number of potential purchasers and increasing the sales of the contents to be sold.

Further, as a result of the viewing, the person who decides to purchase the address data D on the Internet 10 for easily purchasing the contents to be sold such as the music data D1.
There is also an effect that the content accompanying data D2 such as 2 can be obtained. Therefore, there is a great advantage for both music data sellers and purchasers.

Further, after embedding the content supplementary information 3 such as the content name, the creator's name, and the address of the purchase and sale site on the Internet as an electronic watermark in the content to be sold 1 itself, a part or the whole of the content is inserted. Broadcast and distribution of storage media, Internet 10
It is distributed and distributed widely throughout the world by downloading via the Internet. On the other hand, the digital watermark extraction program D5 for extracting the digital watermark information is widely distributed and distributed to the world in the same manner. In this way, potential buyers who have obtained some or all of the content in any way,
When a new purchase is decided, the digital watermark extraction program can easily obtain content supplementary information from the content, which can be easily purchased and the number of sales can be expected to increase.
There are significant benefits to both content sellers and content buyers.

[0048]

As described above, according to the present invention,
The content sales system distributes a part or all of the content in which the accompanying information for purchasing the content to be sold is embedded as an electronic watermark,
A digital watermark extraction program for extracting the content accompanying information from the content can be distributed, and the content purchasing device executes the distributed digital watermark extracting program to embed the content accompanying information as a digital watermark. Content accompanying information can be easily extracted from part or all of the content. As a result, the content sales system can easily sell the content to be sold such as music data, while the user of the sales content purchase device can easily purchase the content to be sold such as music data.

In particular, when the contents to be sold are distributed by broadcasting, the contents can be widely distributed at low cost. Further, when the digital watermark extracting software is distributed by broadcasting, the digital watermark extracting software can be distributed inexpensively and widely, and the trouble of the user searching for the digital watermark extracting software by himself can be saved.

Further, when the contents to be sold and the digital watermark extraction program are distributed via the Internet, they can be realized at low cost and are compatible with a personal computer, so that the realization is easy.

When the contents to be sold and the digital watermark extraction program are recorded on a recording medium and distributed,
Even if the content purchase device does not have a broadcast signal receiving function or does not have an Internet-compatible function, the content to be sold and the digital watermark extraction program can be imported, so that it is possible to respond to the situation of the content purchase device. There is an advantage that user convenience is high.

[Brief description of the drawings]

FIG. 1 is a system diagram according to a first embodiment of the present invention.

[Explanation of symbols]

1 content sales system, 2 recording device, 3 recording device, 4 digital watermark embedding device, 5 recording device, 6
Recording device, 7 web server, 8 broadcasting device, 9 recording medium, 10 internet, 11 content purchasing device, D1 content to be sold, D2 content accompanying data, D3 address embedded music data, part of D4 address embedded music data, D5 Digital watermark extraction program.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G10K 15/02 G10K 15/02 G10L 11/00 H04N 7/08 Z H04N 7/08 G10L 9/00 E 7 / 081 F term (reference) 5C063 AA01 AB03 AB07 AC01 AC05 AC10 CA23 CA36 DA01 DA07 DA13 DB09 5C064 BA01 BB02 BC06 BC18 BC25 BD01 BD08 BD09 5J104 AA14 PA05 PA07

Claims (10)

[Claims] An electronic watermark extracting program for distributing a part or all of content in which content accompanying information for purchasing a content to be sold is embedded as an electronic watermark and extracting the content accompanying information from the content. Content distribution system that also distributes content. 2. The content sales system according to claim 1, wherein the content incidental information is an address of a site on the Internet of the content seller. 3. The contents sales system according to claim 1, wherein the contents are distributed by broadcasting. 4. The contents selling system according to claim 1, wherein the contents are distributed by communication via a network. 5. The contents sales system according to claim 1, wherein the contents are distributed by recording on a recording medium. 6. The content sales system according to claim 1, wherein the distribution of the digital watermark extraction program is performed by broadcasting. 7. The content sales system according to claim 1, wherein the distribution of the digital watermark extraction program is performed by communication via a network. 8. The content sales system according to claim 1, wherein the distribution of the digital watermark extraction program is performed by recording on a recording medium. 9. A content distributed from a content sales system and a digital watermark extraction program are inputted, and the content additional information embedded in the content by a digital watermarking technique is extracted by the digital watermark extraction program, and the content additional information is extracted. A content purchase device, wherein information necessary for purchasing the content is obtained based on the information, and the content is purchased. 10. The content purchasing device according to claim 9, wherein the content supplementary information is an address of a site on the Internet of the content seller, and the content additional information is embedded in the content by a digital watermarking technique by a digital watermark extracting program. A content purchase apparatus for extracting an address, automatically connecting to a site on the Internet of the content seller based on the extracted address, and purchasing the content.