JP2002354454A - Method and system for trading contents of broadcast program via communication line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that trade of contents is very expensive because a seller provides a catalog of contents and a sample of contents recorded on a video tape to a purchaser when the seller sales the contents of broadcast program and the purchaser determines purchase of the contents after viewing the video tape. SOLUTION: A seller delivers contents data indicative of contents to a contents data base through a communication line and prepares the contents themselves and a contents sample for a contents server. A purchaser accesses the contents data base through a communication line and takes in the contents data. The purchaser can download the sample of interested contents with reference to the contents data and can download a purchasing contents through a communication line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for selling and selling contents of a program to a customer via a communication line by a creator or owner of a program such as a television broadcast.

[0002]

2. Description of the Related Art In recent years, digitalization of video and audio broadcasting has been rapidly progressing. The digitization makes it possible to greatly increase the number of channels in a limited frequency range of broadcasting. For example, CS (communi)
Certain satellite broadcasts may include up to 200 channels. Since terrestrial television and radio broadcasts are also expected to be digitized in the near future, the number of channels for these broadcasts is expected to increase significantly. In addition, broadcasts using the Internet and digitized CATV broadcasts have been added, and the number of broadcast media has been increasing dramatically as the broadcast media have been diversified.

[0003] With the increase in the number of broadcast media, broadcasting, such as news, dramas, music, performing arts, sports, movies, reportage, etc. (hereinafter referred to as contents) provided to viewers using these media has been promoted. Demand will increase. However, a situation has arisen in which the increase in contents requiring a lot of time and human resources for production cannot keep up with the dramatic increase in media. Of the contents to be broadcast, dramas, movies, reportage, etc. require a lot of time and cost to produce, and the production cost is often high. Various attempts have been made to reduce the production cost by rationalizing the production process of such content. However, producing high-quality content inevitably requires many excellent human resources and a great deal of time, and there is a problem that easy rationalization lowers the quality of content. Such content with a high production cost often cannot be collected by the broadcasting station that produces it (hereinafter referred to as a creator) broadcasting only once on its own station. Therefore, the same content is lent to a plurality of broadcasting stations (hereinafter, referred to as users) for a fee and reused to collect production costs and to cope with an increase in demand for the content.

[0004] A conventional procedure when a creator lends a content to a user will be described below. The creator creates a catalog of the content on hand and provides it to a plurality of users. The catalog is sent by mail, facsimile, etc. If the user finds the desired content in the catalog, he or she requests the creator to provide a sample. A sample of the content is usually recorded on a videotape in part and sent to the user by mail or the like. The user who sees the sample negotiates with the creator about various conditions such as the fee for use of the content and the broadcasting time zone, makes a use contract, and broadcasts the content.

[0005]

Since the producer distributes the catalog to the user and records a sample of the content to be provided on a video tape and transports it, a considerable cost is required before the sample is provided. . The costs include, for example, catalog printing and mailing costs, content recording costs on videotapes, transportation costs of the recorded videotapes, telephone charges for business meetings with users, and travel costs. As a result of the negotiation, if the use contract is not concluded, all the above costs are wasted. When a usage contract is concluded, there is also a need to prepare a broadcast videotape recording the content and transport it to the user. Usually 1 to transport videotape
It takes one or two days. Further, when a broadcast program of a user is lost due to an accident or the like, the content cannot be urgently received from the creator to fill the gap. The present invention, from the creator to the user,
Provided are a method and apparatus for buying and selling contents, in which catalogs and samples of contents and transfer of broadcast contents after the conclusion of a usage contract are performed at extremely low cost, and transfer can be performed at extremely high speed. With the goal.

[0006]

According to the present invention, a method of buying and selling contents of a broadcast program via a communication line is provided. A seller of a contents of a broadcast program stores contents data for specifying the contents in a contents database. Performing a step of preparing a content sample, which is a sample of the content that has been subjected to an unusable process for the content and the broadcast, on a content server connected to the content database via a communication line, A step of acquiring a content data and a content sample of a desired content from the content database and the content server via the communication line by a purchaser wishing to purchase and use the broadcast for the broadcast; To the seller, the communication line Applying for the purchase of the desired content via the communication line, performing a sales contract between the seller and the purchaser via the communication line, and Downloading the contracted content from the content server via the communication line, and the purchaser paying the seller based on the sales contract via the communication line. .
According to the present invention, the provision of the content data performed by the seller and the acquisition of the content data, the content sample, and the content performed by the purchaser are performed via the communication line. The effect that the cost required for buying and selling is small is obtained.

[0007] According to another aspect of the present invention, there is provided a method of buying and selling broadcast program contents via a communication line, wherein a seller of the broadcast program contents stores content data specifying the contents in a contents database. A step of preparing a content sample, which is a sample of the content that has been subjected to processing unusable for the content and the broadcast, in a content server connected to the content database via a communication line; A step of fetching content data of a desired content displayed in a predetermined transaction format from the content database by a purchaser who wishes to provide the broadcast to the user, and the purchaser fetches a content sample of the desired content from a content server. Steps to download A step in which the purchaser makes an application for purchase of the desired content to the seller of the desired content via the communication line using the transaction form; Via the communication line, performing a sales contract for the content using the transaction format, the purchaser transmits data of the transaction format of the content for which the sales contract has been established to the content server via the communication line. Transmitting and downloading the content from the content server to a purchaser's server, and the purchaser paying the seller based on the sales contract using the transaction form and via the communication line. Performing the steps. According to the present invention, in addition to the above-mentioned effects, in a procedure of buying and selling contents, data of a predetermined transaction format is exchanged between a seller and a purchaser via a communication line. This simplifies the trading procedure and reduces trading costs.

[0008] The system of the present invention is a system for buying and selling contents of a broadcast program via a communication line. The system is connected to the communication line via a modem to sell the contents. A seller terminal for selling via the communication line via the modem by a purchaser, connected to the communication line via a modem, and via the modem by the purchaser attempting to purchase the content. A purchaser terminal for making purchases via the communication line, connected to the communication line via respective modems, and a main body of the content and a sample of the content are stored in the storage media of the respective storage units based on a remote control signal. A plurality of content servers to be downloaded to the purchaser via the communication line via the respective modems Via a modem connected to the communication line, characterized by including a net bank, for making a payment by the communication network for trading desired content between the buyer and the seller.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a trading method for broadcasting program contents via a communication line and a system (apparatus) thereof according to the present invention will be described with reference to FIGS.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method of buying and selling contents of a broadcast program via a communication line (hereinafter abbreviated as "trading method") according to the present invention will be described with reference to FIGS. FIG.
FIG. 2 is a block diagram showing a data configuration in the present embodiment, and FIG. 2 is a block diagram of hardware for executing the present embodiment. FIG. 3, FIG. 4, and FIG. 5 are flowcharts showing procedures (steps) of the present embodiment. FIG. 6 is a format showing an example of “content data” representing the content of “broadcast program content” to be sold in this embodiment. The “contents of a broadcast program” in the present embodiment refers to terrestrial television broadcasts and radio broadcasts, cable broadcasts, satellite broadcasts using geostationary satellites, and the like, which are provided by broadcasters to viewers by broadcasting, news, It is a broadcast material such as music, entertainment, sports, movies, and reportage, and is simply referred to as “content” below. The content is usually recorded on a recording medium such as a magnetic tape, a magnetic disk, an optical disk, a solid-state memory, and a film.

[0011] In the trading method of the present invention, a content provider provides the content to a broadcaster or the like who wants to provide the content for broadcasting under predetermined contract conditions by data communication. The content provider is a creator of the content or a person who owns the content. There are cases where the provider sells only the right to use the content to the user and cases where the content itself is sold "sale". Hereinafter, the provider is referred to as "seller". There may be more than one seller. A broadcaster or the like who purchases the right to use the content or the content itself is hereinafter referred to as a “purchaser”. There are usually multiple buyers. The right to use the content means that the seller is allowed to provide the content for broadcasting under a predetermined condition.

In FIG. 1, a content database 1
0 stores content data representing the content of the content to be sold by the seller. The content data includes a content name, as shown in FIG.
Content code number, broadcast time, content summary,
The sales price of the content is included. The content can be specified by the content code number.
In FIG. 6A, the horizontal column indicates the classification of the content, and the vertical column indicates the broadcast condition of the content. The numbers in the table are selling prices (thousands of yen), and indicate that the seller wants to sell at the prices indicated by the numbers only under the conditions in the columns containing the numbers. The price of the same content differs depending on whether the broadcasting station that purchases it is located in a large city or a local city. Sales history data may be added to the content data. When a column of “sales history data” in FIG. 6A is selected and clicked, a list showing sales history data is displayed.

The content database 10 is connected to the communication line 23 shown in FIGS. 1 and 2 via a router 30. As will be described later, various kinds of hardware for executing the present embodiment are connected to the communication line 23. The content database 10 is connected to a database having various types of data, which will be sequentially described below, and is read out together with the data in the content database 10 in response to a request from a purchaser who accesses via the hardware. In FIG. 1, the category of the content is recorded in the search category database 11, and by specifying the category for the desired content, the search for the desired content data is facilitated. The category has a plurality of hierarchies, and the first hierarchy includes, for example, news, drama, music, entertainment, sports, movies, reportage, and the like. The second hierarchy includes, for example, baseball, tennis, football, golf, and the like in sports.
The third hierarchy includes, for example, baseball in the United States, baseball in Japan, baseball in Japan, and baseball in high school.

Content recording media database 12
Thereby, the recording medium of the desired content can be known. The recording medium is, for example, a magnetic tape, a magnetic disk, an optical disk (CD, DVC, DVD-RW, etc.), a movie film, or the like. Seller database 13
In this example, a list of sellers registered in advance for selling content using the buying and selling method of this embodiment is recorded. The roster also records the seller's detailed career and size. In the purchaser database 14, a list of purchasers registered in advance to purchase contents using the trading method of the present embodiment is recorded. Only the previously registered seller and purchaser can use the trading method of this embodiment. If one trader is both a seller and a purchaser, it may be registered in both the seller database 13 and the purchaser database 14.

The customer fee database 15 records content fee data determined by the seller according to the type and size of the purchaser. Even for the same content, usage fees usually differ depending on the number of viewers in the area where the content is broadcast. The compensation fee database 16 records compensation fee data when the purchaser loses or damages the recording medium of the content borrowed from the seller. Content is usually provided from a seller to a purchaser by data transmission via a communication line, or in the case of enormous content requiring a long time for data transmission, a recording medium itself may be provided to the purchaser. The data of the compensation fee database 16 is used in the above case.

The inquiry status database 17 records data on the inquiry status when there is an inquiry from a purchaser for a certain content. Examples of the inquiry status data include a desired purchase price and a scheduled broadcast date. Those under price negotiation are also included in the inquiry status database 17. Only the seller can see the inquiry status database 17. If, for example, two months have not passed since the start of the negotiation, the inquiry status data may be automatically deleted. When the recording medium itself is lent to the purchaser, data indicating that fact is recorded in the recording medium payout database 18. When the content is sold via the communication line, data to that effect is recorded in the recording medium payout database 18.

The sales slip database 19 records sales slip data indicating the transaction status of the sales of the content. When the content is lent to the purchaser in the form of a recording medium, the compensation fee deposited must be returned if there is no abnormality upon inspection, and the data is also recorded. In the content sales history database 20, past sales histories of each content are recorded. When the purchase or sale of the content is completed, the contract details are recorded in the content sales history database 20. The sales history includes, for example, data on purchasers, sales prices, broadcast dates and times, etc. in the past 20 sales for each content. The transaction format database 21 records transaction format data used in the transaction method of the present embodiment.

Next, hardware for executing the trading method of the embodiment will be described with reference to FIG. In the figure,
On the communication line 23, a net bank 31, three content servers 33, 35, 37, a seller terminal 39 and a purchaser terminal 41 are connected to respective modems 32, 34, 36, 38,
They are connected via 40 and 42. The communication line 23 is a dedicated communication line or an Internet IP network (Internet protocol network). When an IP network is used, known protection measures are taken to prevent intrusion of third parties other than the seller and the purchaser. The communication line 23 is connected to the content database 10 via a router 30. The net bank 31 is a known Internet-based banking system for performing payment between the purchaser and the seller for the content sold using the transaction method of the present embodiment.

Each of the content servers 33, 35, and 37 has a storage for storing the content, and the content itself registered in the content database 11 is stored therein. The content is recorded and stored in various recording media such as a video tape, a video disk (such as a DVD), a CD, a magnetic disk, and a solid-state memory such as a semiconductor memory. Each content server includes a device for taking out a recording medium on which desired content is recorded from a storage and automatically reproducing the recording medium.

The three content servers 33, 35, 37
Are installed in large cities where sellers and purchasers are concentrated, such as Tokyo, Nagoya, and Osaka. The number of content servers is not limited to three, and more content servers may be installed in each region where sellers and purchasers exist as necessary. The content server may be installed anywhere as long as the recording medium is a solid-state memory and communication means for connecting the content server and the content database 10 can be secured. Each content stored in each of the content servers 33, 35, and 37 includes a content sample that is a sample of the content. The content sample is for knowing the outline of the content, and the purchaser can download and view the content sample for free. The content sample is compressed based on the MPEG4 standard in order to reduce the amount of data and reduce the image quality of the content sample so that it is not suitable for use in broadcasting. This prevents unlicensed use of the content sample for broadcasting. In order to reliably prevent unlicensed use, the content sample may include a superimposed character indicating that it is a sample. Instead of preparing a content sample in advance, a content sample may be created from the content itself as needed. In this case, when the purchaser requests the content server to download a content sample of the desired content, the content server applies the above-described non-contract usage prevention measure to the content and transmits the content to the purchaser.

The seller terminal 39 is a terminal device owned by the seller, and the purchaser terminal 41 is a terminal device owned by the purchaser.
It is connected to the. In FIG. 2, one seller terminal 39 and one purchaser terminal 41 are shown, but a plurality of both terminals are usually connected to the communication line 23. The seller terminal 39 includes, for example, a server 39A for transmitting contents to be sold using the trading method of the present embodiment to a magnetic disk or solid-state memory of the contents server 37. The purchaser terminal 41 includes the content servers 33, 3
Server 41 for receiving content from 5 or 37
A is included. A password and a terminal device identification number are defined for the seller terminal 39 and the purchaser terminal 41, respectively, and form the identification code of the seller or the purchaser together with the name of the seller or the purchaser. Using this identification code, the seller and the purchaser can use the content database 10
Can be accessed.

Next, the trading method of this embodiment will be described with reference to the flowcharts of FIGS. 1, 2, and 3 to 5. A seller who wants to sell content using the trading method of the present embodiment registers content data of the content in the content database 10 using the seller terminal 39. An example of the format of the content data is shown in FIG. The process of registering the content data is shown in steps 51 to 56 in FIG.

In step 51, the seller terminal 39 accesses the contents database 10. In step 52, the name of the seller, the password, and the device number (ID) of the seller terminal 39 are collated in the seller database 13. If the accessed seller is not registered in step 53, the process ends. If registered, the process proceeds to step 54, where the seller registers the content data in the content database 10. Step 5
At 5, the seller delivers the content to the content server 33, 35 or 37. The content to be delivered has a digital watermark in advance. The digital watermark is to put an image that cannot be seen by a viewer on a part of the screen. The digital watermark can be easily detected by using a predetermined digital watermark detecting device. There are two ways of delivering the content: delivering the content by storing the content in a solid-state memory of the content server by data transmission, and delivering the recording medium itself such as a magnetic tape on which the content is recorded. Step 56
The content database 10 includes a search category database 11, a content recording media database 1,
2. The search category, content recording media, customer-specific usage fee, and compensation fee data included in the content data are recorded in the customer-specific fee database 15 and the compensation fee database 16, respectively. Through steps 51 to 56 described above, one content item can be traded by the seller using the trading method of the present embodiment.

Next, a description will be given of a process in which a purchaser purchases a content using the trading method of the present embodiment. The purchaser accesses the content database 10 from the purchaser terminal 41 (step 71 in FIG. 4). In step 72,
Data specifying the purchaser, for example, the name of the purchaser, the password, the device number of the purchaser terminal 41, and the like are collated with the data registered in the purchaser database 14 in advance. It is determined whether the person is registered. If it is determined in step 73 that the purchaser has not been registered, the process ends.
If it is determined that the content has been registered, the process proceeds to step 74, where the purchaser can access the search category database 11 to search for desired content. If the desired content is found, the process proceeds to step 75, where the content found by the search (hereinafter, referred to as target content) is stored in the content recording media database 1.
2. Read the necessary data from the usage fee database 15, the compensation fee database 16, the recording media payout database 18, the sales slip database 19, and the content sales history database 20 to determine whether or not the conditions satisfy the requirements of the purchaser. I do. In step 76, if necessary, the purchaser extracts a content sample of the target content from the content server 33, 35 or 37 in which the target content is stored, to the server 41A of the purchaser terminal 41.
(Step 76).

When the purchaser desires to purchase the target content, he or she takes in the transaction form from the transaction form database 21 and enters desired conditions. An example of the transaction format is shown in FIG. In the transaction form, for example, the name of the purchaser, the purchaser ID, the purchaser classification, and the like are displayed. The desired conditions are, for example, a desired purchase price, a broadcast date and time, and the number of broadcasts. The transaction form may include a buyer communication section and a seller communication section. When a buyer communication section or a seller communication section is selected and clicked, respective communication sections are displayed, and necessary items can be entered. It is desirable that the transaction format shown in FIG. 6B be combined with the content data shown in FIG. The buyer sends the inquiry slip to the seller (step 7)
7). The seller who has received the inquiry slip in step 78 examines the transaction conditions of the inquiry slip and decides whether to sell the target content to the purchaser (step 78). If the purchaser's transaction conditions are not acceptable, the seller rewrites the transaction conditions in the inquiry slip to the desired ones and returns the same to the purchaser (step 79). If the buyer cannot agree with the seller's transaction conditions in the inquiry slip in step 80, step 7
Return to 7. The price negotiation is performed by repeating the processing of steps 77 to 80. If both the seller and the buyer agree on the transaction conditions of the inquiry slip, the process proceeds to step 81, where the inquiry slip becomes a sales contract. By the processing of step 81, the seller and the purchaser hold the sales contract with the same contents.

In step 82, the content database 10 notifies the content server 37 that stores the target content that the sales contract has been established. Step 8
In 3, the purchaser can download the broadcast content from the content server 37 to the server 41A of the purchaser terminal 41. Content server, magnetic tape,
An automatic reproduction / transmission device is provided for each content recording medium such as a magnetic disk and an optical disk. For example, when the desired content is recorded on a magnetic tape, the magnetic tape is taken out of the storage by a robot arm or the like, and is automatically set in a magnetic tape reproducing device and reproduced. The purchaser can provide the content downloaded to the server 41A for broadcasting. Depending on the content, the recording medium itself such as a magnetic tape may be delivered to the purchaser. After the sales contract is concluded, the purchaser accesses the net bank 31 from the purchaser terminal 41 in step 84 and pays the price. The sales contract may also serve as a payment instruction.

When the purchaser cannot broadcast the content for which the purchase contract has been made due to unavoidable circumstances, or when the same content has been broadcast first from another station in the same broadcast area, the seller and the purchaser may not be able to broadcast the content. The sales contract may be able to be canceled by consultation. If there is an inquiry from another purchaser who has the same broadcasting area as the preceding purchaser before broadcasting the content, for the content for which a sales contract has been completed with a certain purchaser (prior purchaser) It is desirable to notify the seller to that effect. This will allow the pre-buyer who has signed up earlier to broadcast,
It is possible to prevent another purchaser who has contracted later from broadcasting the same content without the prior purchaser's knowledge and giving disadvantage to the preceding purchaser. In the transaction method of the present embodiment, the registered seller and purchaser may contribute a predetermined amount of annual membership fee, respectively, and the purchaser may pay a usage fee every time the content is used. There is no annual fee and only the fee may be used.

[0028]

As described in detail in the above embodiment,
According to the present invention, when the purchaser purchases the content of the seller, the purchaser takes in the content data, downloads a content sample that is a sample of the content, and buys and sells the right to use the content between the seller and the purchaser. All processes, such as the contract and the download of the content after the contract is established to the purchaser, are performed via the communication line. Therefore, content transactions between the seller and the purchaser can be performed at extremely low cost. In addition, since a communication line is used, processing is performed promptly, and it is possible to deal with an emergency content transaction.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a database of an embodiment of a method for buying and selling broadcast program contents via a communication line according to the present invention

FIG. 2 is a block diagram showing a hardware configuration of the embodiment.

FIG. 3 is a flowchart illustrating a process performed by a seller according to the embodiment;

FIG. 4 is a flowchart showing processing performed by a purchaser according to the present embodiment from step 71 to step 76;

FIG. 5 is a flowchart of steps 77 to 84 showing processing performed by the purchaser of the present embodiment.

FIG. 6A is a format diagram showing an example of content data according to the embodiment; FIG. 6B is a format diagram showing an example of a transaction format;

[Explanation of symbols]

 10 Content Database 11 Search Category Database 12 Content Recording Media Database 13 Seller Database 14 Buyer Database 15 Customer Usage Fee Database 16 Compensation Fee Database 17 Inquiry Status Database 18 Recording Media Payout Database 19 Trading Slip Database 20 Content Sales History Database 21 Transaction Format database 30 Router 31 Net bank 32, 34, 36, 38, 40, 42 Modem 33, 35, 37 Content server 39 Seller terminal 39A, 41A server 41 Buyer terminal

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04H 1/02 H04H 1/02 F (72) Inventor Noriyuki Isaka 10-10-G, Tateishicho, Ikeda-shi, Osaka F term (reference) 5C064 BA01 BB01 BB07 BB10 BC06 BC20 BC25 BD02 BD08 BD09 BD16

Claims (19)

[Claims] 1. A seller of a content of a broadcast program stores content data for specifying the content in a content database, wherein the seller is connected to a content server connected to the content database via a communication line. Preparing a content sample, which is a sample of the content that has been subjected to unusable processing for content and broadcasting; a purchaser who wants to purchase the content and use it for broadcasting is transmitted from the content database and content server to the communication; Capturing the content data and content sample of the desired content via a line, the purchaser applying for the purchase of the desired content to the seller of the desired content via the communication line, The seller and the purchaser Between the person, via the communication line, the step of performing the contract for the sale and purchase of the content, the purchaser is, the content of the sales contract has been established,
A step of downloading from a content server via the communication line, and a step of the buyer making a payment to the seller based on the sales contract via the communication line. How to buy and sell via. 2. A step in which a seller of the content of the broadcast program stores the content data specifying the content in a content database, wherein the seller is connected to a content server connected to the content database by a communication line. Preparing a content sample that is a sample of the content that has been subjected to unusable processing for content and broadcasting; a purchaser who wants to purchase the content and provide it for broadcasting, from the content database, Capturing the content data displayed in a predetermined transaction format; downloading the content sample of the desired content from a content server by the purchaser; and connecting the communication line to the seller of the desired content. Via, Step carry out the application of the purchase of the serial desired content using the transaction format, via the communication line between the seller and the buyer,
Performing the sales contract of the content using the transaction format, the purchaser transmits data of the transaction format of the content for which the sales contract is established to the content server via the communication line, and from the content server. Downloading the content to a purchaser's server, and performing a payment by the purchaser to the seller based on the sales contract using the transaction form and via the communication line. A method of buying and selling content via a communication line. 3. The method according to claim 1, further comprising the step of checking the seller by referring to a seller database attached to the content database when the seller accesses the content database to store the content data. A method for buying and selling the content of the broadcast program according to item 1 or 2 via a communication line. 4. When the purchaser accesses the content database to purchase content,
The method according to claim 1 or 2, further comprising the step of checking the purchaser with reference to a purchaser database attached to the content database. 5. The method according to claim 1, further comprising the step of searching for desired content by referring to a search category database attached to the content database when the purchaser accesses the content database to purchase the content. A method of buying and selling the contents of the described broadcast program via a communication line. 6. The broadcast according to claim 1, further comprising the step of referring to a customer-specific price database attached to the content database to know the price when the purchaser accesses the content database to purchase the content. A method of buying and selling program contents via a communication line. 7. The content server, when requested by the purchaser to download a content sample,
3. A method for buying and selling content of a broadcast program via a communication line according to claim 1 or 2, wherein the content is subjected to a process that cannot be used for broadcasting to create a content sample and transmitted to the purchaser. . 8. The purchaser is notified of at least a content name, a content identification code, a broadcast time, a selling price, a seller name, and a sales condition determined by the seller by the transaction format. 2. A method of buying and selling the contents of the broadcast program described in 2 through a communication line. 9. The transaction form informs the purchaser of at least the content name, the content identification code, the broadcast time, the selling price, the seller name, and the sales conditions desired by the seller, and the purchase conditions desired by the buyer. Is notified to the seller, it is displayed that a sales contract has been established between the seller and the purchaser, the establishment of the sales contract is notified to the content server, and the payment based on the sales contract is transmitted to the communication line. 3. The method for buying and selling broadcast program contents via a communication line according to claim 2, wherein instructions are given to a connected predetermined financial institution. 10. A system for buying and selling contents of a broadcast program via a communication line, wherein the system is connected to the communication line via a modem and operated by a seller who intends to sell the contents. A seller terminal for selling via the communication line via the modem, the communication line being connected to the communication line via a modem and operated by a purchaser who intends to purchase the content via the modem; A purchaser terminal for making a purchase via the communication line, connected to the communication line via a respective modem, and transferring the respective modems from the recording medium of the respective storage units based on a remote control signal to the main body of the content and a sample of the content. A plurality of content servers that allow the purchaser to download via the communication line via a modem And a net bank connected to the communication line for making a payment via a communication net for buying and selling desired content between the buyer and the seller. 11. The system according to claim 10, wherein a content database is connected to the communication line through a router. 12. The purchaser terminal stores in its memory software for presenting and applying for a sample provision of the desired content to the seller terminal in a predetermined transaction format via the communication line. The system according to claim 10 or 11, wherein: 13. The system according to claim 12, wherein the purchaser terminal further stores a step of taking in content data based on the application in a memory. 14. The seller terminal, when receiving an application from the purchaser terminal by presenting the predetermined format, refers to a seller database attached to the content database to check the seller with software. The system according to claim 10 or 11, wherein the system is stored in the memory. 15. The system according to claim 10, further comprising a memory storing a search category database attached to the content database for searching for desired content, and wherein the search step is stored in the memory. 16. The apparatus according to claim 10, further comprising a memory storing a customer-specific price database attached to the content database, and further comprising a step of referring to the customer-specific price database to know the price. system. 17. The system according to claim 10, wherein the content is subjected to a process that cannot be used for broadcasting to generate a content sample, and software to be transmitted to the purchaser is stored. 18. The method according to claim 18, wherein at least
11. A memory for storing software for notifying a purchaser of a content name, a content identification code, a broadcast time, a selling price, a seller name, and sales conditions determined by the seller, in a memory.
15. The system according to any of 14. 19. The system according to claim 19, wherein:
The buyer is notified of the content name, content identification code, broadcast time, sales price, seller name, and the sales conditions desired by the seller, and the seller is notified of the purchase conditions desired by the buyer. Software that indicates that a sales contract has been concluded between, a content server is notified of the conclusion of the sales contract, and a payment is instructed to a predetermined financial institution connected to the communication line based on the sales contract. The system according to claim 10, wherein is stored in a memory.