KR20020064607A - Lottery price decision competitive trade method and system - Google Patents

Abstract

PURPOSE: A method and a device for a competition trade are provided to prevent improper price by making a buyer input the maximum price and a seller input the minimum price at participating the competition trade, drawing one price between the maximum price and the minimum price, and deciding a commodity price by supplying a profit corresponded to the difference to the buyer or the seller. CONSTITUTION: In a competition trading method for drawing and deciding a commodity price using a computer, a seller inputs a selling condition including a commodity to be sold and the minimum price thereof in the computer(63). At least one buyer inputs a buying condition including the maximum price of the commodity to be sold as a competition trade in the computer(68). A competition trade is closed(69). At least one buyer is decided out of the buyers(70). A commodity price is decided by drawing one price between the maximum price and the minimum price(71).

Description

Lottery Pricing Method Competition Method and Apparatus {LOTTERY PRICE DECISION COMPETITIVE TRADE METHOD AND SYSTEM}

The present invention relates to a competitive sales method of determining a lottery price using a computer, and an apparatus for performing such a method. More specifically, if the buyer enters the maximum price and the seller enters the minimum price when the competitor participates in the competitive trade, the difference is determined by drawing the price of one of the prices in between. The present invention relates to a competitive sales method and a device for performing such a method, which draws the price of a commodity by using a computer capable of encouraging the participation in competitive trade by giving buyers and sellers a profit of.

As an example of a competitive trade method using a computer, U.S. Patent No. 5,835,896 introduces a method in which a person can automatically transmit auction information without supervising an auction.

In other words, the model relates to a method and apparatus for processing auction information through a computer network. Auctioners input auction details on their own internet by connecting a host computer which hosts an auction and a computer of participants participating in the auction. It is about how the host computer receives this information and classifies the information according to the meridians.

U. S. Patent No. 5,890, 138 also relates to commerce by auction over the Internet in a similar manner. The present invention includes the steps of a buyer connecting to the Internet to search for a specific product; Inputting the buyer's information including the buyer's personal information and credit card number and participating in the auction for the particular product; Mercury merchandise to the buyer who entered the highest price at the end of the auction; At the moment of mercury, the payment is automatically made through the credit card and the goods are delivered to the buyer.

Compared to the conventional electronic commerce method is mainly sellers, a new buyer-driven electronic commerce method is emerging, for example, US Patent No. 5,794,207. The method according to this patent relates to a commerce method in which the merchandise is meridians to a seller who can satisfy this condition when the purchaser enters a purchase condition. Looking at the process of the method disclosed in this patent, a buyer first enters a conditional purchase offer, and then enters a payment identifier via credit card transaction into a computer in connection with the conditional purchase offer. This information is passed on to multiple sellers, and sellers enter the computer's approval of the purchase offer and merchandise is sent to the seller who can satisfy the buyer's offer. In this way, the selected seller is automatically paid for the goods through the card payment.

All of the above competitive trades may be made when the competitive competition is intensified, the meridians may be memorized at too low or too high prices and the winning bidder may be bid at too high or too low prices and the buyer or seller may benefit from the competition. There is a problem that can be unilaterally.

The present invention has been made to solve the problem of the competitive sales method using a computer according to the various types of technology illustrated above, when the buyer enters the maximum price and the seller enters the minimum price, rather than a constant price when participating in the competition By drawing the price of one of the prices between the two to prevent the price of the product from being too high or too low if the competition is fierce, the difference is given to the buyer or seller and ultimately e-commerce. It is an object of the present invention to provide a competitive trade method for lottery determination of commodity prices using a computer capable of activating and a device for performing such a method.

1 is a schematic diagram of an apparatus for executing a competitive trade method of determining a product price by using a computer according to the present invention.

FIG. 2 is a diagram showing the configuration of the central controller 30 in the apparatus shown in FIG.

Figure 3 is a flow chart illustrating a competitive sales method for determining the lottery price of goods using a computer according to an embodiment of the present invention.

Figure 4 is a flow chart illustrating a competitive sales method for drawing a product price by using a computer according to another embodiment of the present invention.

5 is a product price lottery method according to an embodiment of the present invention

6 is a commodity price lottery method according to another embodiment of the present invention

Explanation of symbols on the main parts of the drawings

11, 13: buyer interface

12, 14: Buyer Modem

15, 17: Merchant Interface

16, 18: Merchant Modem

19: Delivery interface

20: delivery modem

30: central control unit

31: central processing unit

32: RAM

33: encryption processing device

34: Roman

35: watch

36: operating device

37: Payment processing device

38: network interface

39: Member Database

40: delivery database

41: competitive trafficking database

42: cryptographic key database

43: product information database

44: Payment Database

45: Buyer Account

46: Seller Account

47: buyer account

48: Conditional Account

49: data storage

In order to achieve the object of the present invention described above, a competitive sales method for determining a product price by using a computer according to the present invention, the seller is to sell the product and its minimum minimum price as a component Inputting sales conditions; Inputting, by at least one buyer, a purchase condition for which the competitive trade is in progress at least a maximum price as a component thereof; Closing competition participation; Determining at least one buyer among the buyers, and determining a price by drawing one of a price between the maximum price and the minimum price of the buyer.

The determining of the buyer may include determining the buyer based on the maximum price input by the buyer or based on the buyer's selection among the buyers of the seller.

Here, the step of determining a commodity price by drawing one price among the prices between the maximum price and the minimum price of the buyer may be performed to adjust the possibility of drawing the price between each price between the maximum price and the minimum price of the buyer. Steps.

In addition, the step of determining the commodity price by drawing one price among the prices between the maximum price and the minimum price includes the step of one or both parties involved in the trading contract to draw a price.

In addition, the step of determining the commodity price by drawing one of the prices between the maximum price and the minimum price of the buyer includes the step of drawing the price using a random number or time.

According to another aspect of the present invention, the step of inputting a purchase condition to the computer at least by the purchaser as the component thereof includes the step of the purchaser paying the computer; The method further includes the step of making a payment to the seller after the product price determination.

According to another aspect of the invention, the step of the buyer pays the computer after the product price determination; Confirming the delivery or the purchaser entering the payment authorization into the computer or the delivery person entering the delivery confirmation into the computer; And using the payment data to pay the seller.

According to another aspect of the invention, the step of the buyer pays the computer after the product price determination; Confirming the return or the seller enters the refund authorization into the computer or the delivery user enters the return confirmation into the computer; Refund the goods price to the buyer, characterized in that it further comprises.

According to still another aspect of the present invention, there is provided a competitive sales method of determining a product price by using a computer, the method comprising: inputting a purchase condition in which a purchaser having at least a maximum price of a product to be purchased by the purchaser as a component thereof; Inputting, by at least one seller, terms of sale on the computer, the terms of sale of which at least the minimum price of the product for which the competitive trade is in progress is a component; Closing competition participation; Determining at least one seller from the sellers; And drawing a price of one of the prices between the maximum price and the minimum price of the seller to determine a commodity price.

The determining of the seller may include determining the seller based on the minimum price input by the sellers or based on the seller selection among the sellers of the buyer.

Here, the step of determining a commodity price by drawing one price among the prices between the maximum price and the minimum price of the seller adjusts the lottery possibility of each price between the maximum price and the minimum price of the seller. Characterized in that it comprises a step.

Here, the step of determining the commodity price by drawing one price among the prices between the maximum price and the minimum price of the seller includes the step of drawing a price by one or both parties of the trading contract.

Here, the step of determining the product price by drawing one price among the prices between the maximum price and the minimum price of the seller includes the step of drawing the price using a random number or time.

According to another aspect of the present invention, the step of inputting a purchase condition to the computer at least by the buyer as a component of the purchase price comprises the purchaser paying the computer; After the commodity price determination, characterized in that it further comprises the step of making a payment to the seller.

According to another aspect of the invention, the step of the buyer pays the computer after the product price determination; Confirming the delivery or the purchaser entering the payment authorization into the computer or the delivery person entering the delivery confirmation into the computer; It further comprises the step of making a payment to the seller.

According to another aspect of the invention, the step of the buyer pays after the product price determination; Confirming the return or the seller enters the refund authorization into the computer or the delivery user enters the return confirmation into the computer; Refund the goods price to the buyer, characterized in that it further comprises.

Competitive trading includes auctions where competitors know the competition conditions of other competitors, reverse auctions, bidding where competitors cannot know the competition conditions of other competitors, and reverse bidding.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

The structure of a method and apparatus according to an embodiment of the invention is disclosed in FIGS.

1 is a diagram showing a schematic configuration of an apparatus for executing a competitive trade method of determining a product price by using a computer according to the present invention.

Referring to FIG. 1, the apparatus according to the present invention is composed of a seller interface 15, 17, a central controller 30, a buyer interface 11, 13, and a deliverer interface 19 (general node). . Each node is connected through an internet connection using a public switched telephone network. Such a connection may be made by a dedicated line or cellular personal communication system microwave or satellite broadcasting network. The buyer interface 11, 13 and the seller interface 15, 17 The delivery interface 19 is an input / output gate that communicates with the central controller 30.

Using this configuration, the present invention provides a competitive trade method and apparatus for lottery determination of commodity prices using a computer.

As shown in FIG. 2, the central control unit 30 includes a central processing unit 31, a RAM 32, a cryptographic processing unit 33, a ROM 34, a payment processing unit 37, a clock 35, An operating device 36, a network interface 38, and a data storage device 49. In addition, although not shown separately, may include a product search engine.

A traditional personal computer or workstation with a significant amount of memory and processing power can be used as the central controller 30. In one embodiment, it acts as a web server to send and receive purchase conditions that have at least the maximum price made by the buyer as its component or sales conditions that have at least the minimum price made by the seller as its component.

The central control unit 30 can perform a large amount of work by executing a huge amount of mathematical calculations in information processing or database search. Pentium microprocessors, such as the 100Mhz P54C, mainly produced by Intel, can be used as the CPU 31. This processor implements a 32-bit architecture.

The cryptographic processing device 33 enables anonymous transactions and at the same time supports authentication of information from buyers, sellers, and delivery companies. The encryption processing apparatus 33 may be configured as a part of the CPU 31. The MC68HC16 microcontroller mainly produced by Motorola may be used as the encryption processing device 33.

Referring to Figure 2, the payment processing device 37 consists of one or more traditional microprocessors that support the transfer and exchange of payments, various expenses, and borrowing costs. The payment processing device 37 may also be configured as part of the CPU 31. Credit card manipulation by the payment processing device 37 may be supported by commercially available software such as "Secure Webserver" produced by Openmarket. The server software sends the credit card number electronically over the Internet to servers in the Openmarket headquarters where card lookup and processing take place. Their integrated commerce service provides the support services needed to run a web-based business. Services include online deposit account reporting, order receipt and credit card payment verification, credit card payment, automatic added value, digital receipts, tracking of purchases based on deposits, and payment aggregation for cheap services.

The data storage device 49 may include a hard disk which is a magnetic or optical storage device such as a CD-ROM drive or a flash memory. The data storage device is a member database (39), a delivery company database (40), a competitive sales process database (41), a product information database (43), a payment database (44), the buyer account (45), the seller account (46). ), The buyer account 47 and the conditional account 48 contain the databases used for contract processing in accordance with the present invention. In a preferred embodiment, database software such as Oracle7 produced by Oracle Corporation is used to create and manipulate these databases. Data storage also stores information related to.

The member database 39 includes member name, ID, authentication information, address, preferred payment form, credit card number, bank account number, telephone number, social security number, social security number, e-mail address, credit history, past device use and purchase. Stores information related to members such as products of interest, products of sale, cryptographic key information, and the like.

The delivery database 40 stores information about the delivery person such as name, authentication information, ID, tracking service contents, and encryption key information.

The competitive sales progress data base 41 includes a contract number, a buyer ID, a seller ID, a purchase goods condition having at least the maximum price as its component, a sale goods condition having at least the minimum price as its component, a buyer changed to the buyer, the seller Information about all competitive trade progress, including messages sent to sellers, buyers, sellers and deliverers, messages received from buyers, sellers and deliverers, and delivery and return tracking numbers, are stored.

The encryption key database 42 facilitates encryption by storing both symmetric and asymmetric keys. These keys are cryptographic processing devices for encrypting and decrypting at least the purchase price having the maximum price as a component, the selling condition having at least the minimum price as a component, payment approval, refund approval, delivery confirmation message, return confirmation message, etc. Used by

The product information database 43 stores information about general goods.

The payment database 44 stores information about the buyer's payment, such as the buyer's name, ID, credit card number, bank account number, payment amount, buyer name, ID, credit card number, bank account number, payment amount, contract number, etc. do.

The buyer account 45 stores the payment or payment data sent to the buyer name, the seller account 46 or the conditional account 48 or returned from the conditional account 48, or the payment amount deposited outside the device or It serves as an indicator for payment data.

Seller account 46 stores the payment name or payment data received from seller's name, buyer account 45, buyer account 47, conditional account 48, credit card company, or deposited out of the device It also serves as an indicator for payment data.

The conditional account 48 stores its payout or payment data before it is sent to the seller account 46 or sent back to the buyer account 45 or the buyer account 47 or deposited outside of the device. Serves as an indicator of

The buyer account 47 stores the payment or payment data sent to the buyer's name, the seller's account 46 or the conditional account 48 or returned from the conditional account 48, or the payment amount deposited externally outside the device; It serves as an indicator for payment data.

The network interface 38 is a gateway for buyers, sellers, and deliverers to exchange information through the respective buyer interface 11, 13, seller interface 15, 17, and delivery interface 19.

Existing internal and external modems can serve as the network interface 38. Network interface 38 always maintains a baud rate range above 1200, but if more bandwidth is needed, such input data can be coupled to T1 and T3 lines.

In one embodiment, network interface 38 is connected to all commercial online services such as America Online, CompusServe, Prodigy, and the Internet, where buyers, sellers, and deliverers have access to a wide range of online services. Some commercial servers have the above functionality. NCD Software is a platform that uses open standards based on independent Internet protocols designed to connect people and information on corporate networks and the Internet. Users can exchange messages that attach files, graphics, video, and audio. The system also supports the use of various languages. Alternatively, network interface 38 may be configured with a voice mail interface, a BBS on the web, or an e-mail address.

While one computer is described in the above embodiment as acting as the central controller 30, those skilled in the art will recognize that the functionality may be distributed over a plurality of computers. In one embodiment, the central control unit 30 is configured in a distributed structure and the database and processors are stored in separate units or storage locations. Some controls perform basic processing with a minimum amount of RAM 32 and ROM 34 and general processing. Each of these controls is connected to a wide area network hub that connects with other controls and interface devices. A wide area network hub may have minimal functionality that primarily acts as a router. Those skilled in the art will recognize that numerous controls can be supported. Such device arrangements are more likely to reduce catastrophic hardware damage that affects the entire device. It enables dynamic and resilient devices.

The purchaser interface 11, 13, the seller interface 15, 17, the deliverer interface 19 may in one embodiment be a keyboard, a mouse or an existing voice recognition package, a display such as a video monitor, a processing unit such as a CPU and a modem. Traditional personal computers with input devices such as network interfaces. These devices are connected to the central control unit 30. As an alternative, the buyer interface 11, 13, the seller interface 15, 17, the delivery interface 19 may also have a voice mail device or other electronic or voice-enabled communication device. Fax machines and pagers may also be suitable interface devices.

In the present invention, the establishment of a sales contract and the definition of a buyer, a seller, a buyer, and a seller are as follows.

A contract of sale shall be established only if there is an offer of sale and acceptance of a sale and the agreement thereof. It is not necessary to be determined in the contract of sale, but it is sufficient if the method of decision is determined in the contract of sale. The establishment of a contract of sale creates a buyer's obligation to pay the seller's payments and the seller's obligation to transfer property rights. Indeed, payment and transfer of object property rights are nothing more than the execution of a contract of sale and the establishment of a contract of sale.

In the present invention, the competitive trade is established by the agreement between the subscription and the consent, and the price lottery is only a method for determining the price, and thus does not affect the establishment and the buyer's settlement or the seller's delivery of the product does not affect the establishment.

In the present invention, a buyer is a person who wants to buy a product and a seller is a person who wants to sell a product.

In the present invention, the buyer is the one who bears the payment obligation after establishing the sales contract, and the seller is the one who is responsible for the transfer of property rights of the trading object after the establishment of the sales contract.

Although the present invention focuses on the merchandise sale contract, the present invention includes all contract types that can be competitively concluded, and of course, includes a service provision contract (delegation contract, lease contract, lease contract, etc.).

For example, passenger transport contracts, hotel accommodation contracts, rental car contracts, etc. are also included in the present invention.

3 is a flowchart illustrating a competitive trafficking method of determining a product lottery price by using a computer according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the method according to an embodiment of the present invention consists of a seller mode comprising steps 61, 62, 63, 64, and 74 and a buyer mode comprising 65, 66, 67, 68, and 73.

The method according to one embodiment of the present invention is performed by the apparatus 30 shown in FIG.

In the following, a sales contract is established and the seller enters into the contract, provided that the input of the terms of sale is at least the minimum price of the seller as the subscription and the buyer's input of the maximum price is a condition that there is no higher price of the other buyer. The status of is changed to the seller's status. Price lottery is only a pricing method and does not affect the establishment of a sales contract. However, if the buyer enters a purchase condition excluding the maximum price, this is an offer and the seller agrees to the buyer's choice.

Referring to FIG. 3, first, the seller selects the seller mode by accessing the central control device 30 via the seller interface 15, 17 in step 61. At this time, the seller inputs the seller information into the central controller 30. According to an embodiment, it is also possible for the seller to enter a member ID and password to log in. In this case, if the seller is not a member, the membership information may be entered and then the membership registration process may be performed. Member information entered by the seller may include a member's name, address, bank account number, credit card number, social security number, social security number, business registration number, products of interest, products sold. Member information input by the seller is stored in the member database 39 of the central control unit 30.

The central control unit 30 stores the member information found in the member database 39 with the seller information or the seller member ID inputted by the seller after accessing the central control unit 30 in the competition traffic proceeding database 41. .

The seller then enters 62 the product to be sold.

At this time, the input method can be directly input by the seller.

According to an embodiment, when the seller connects to the central control unit 30 in step 61, the central control unit 30 accesses data about the product, for example in the form of a product list or an electronic catalog. Deliver to the seller. Here, the data about the product is stored in advance in the product information database 43, the data about the product output from the central control unit 30 is connected to the seller modem (16, 18) and the seller interface (15, 17) It is transmitted to the computer of the seller connected to the central control device 30 through. The electronic catalog may include a product name or a model name, a manufacturer, a photographic image of a product, and information on a minimum competitive price for a product. Subsequently, the seller searches for and inputs a product to be sold through the electronic catalog. That is, the seller may search for and input a product to be sold, for example, a specific electronic product, a car, a real estate service, etc. among the products displayed in the electronic catalog displayed on the computer monitor. When the seller selects a product through the electronic catalog, the central control unit 30 may deliver additional detailed data about the selected product to the seller.

According to another embodiment, it is also possible for a seller to search for and enter a product for sale using a search engine.

In step 63, the seller inputs a sale condition of the product, in which the sale condition may include, in addition to the minimum price of the product, a saleable quantity of the product, a delivery address of the product, and a payment means for the product. In this case, the seller may enter a deadline for participating in the competitive trade at the stage of entering the sales conditions of the product. The deadline for participating in the competitive trade may be arbitrarily designated by the seller. The seller may select one of the selected deadlines entered by the central controller 30 and input the selected deadline. 30) may be set automatically. In addition, depending on the embodiment, without a seller's deadline designation, it is also possible to select a configuration in which the participation in competition sales is automatically closed when a predetermined period of time, for example, one day has elapsed from the application for competition sale.

The central control unit 30 stores the above sales conditions in the competition traffic proceeding database 41.

The central control unit 30 then starts a competitive sale for the goods entered by the seller.

The central control unit 30 stores information indicating that competition competition for the commodity entered by the seller has started in the competition traffic proceeding database 41.

As such, when competition is started in step 64, the seller mode is completed, and then the buyer mode is performed.

At least one purchaser connects to the central control unit 30 via the purchaser interface 11, 13 in step 65 to select the purchaser mode provided by the central control unit 30.

At this time, the purchaser inputs the purchaser information to the central controller 30. According to an exemplary embodiment, in step 66, the purchaser may execute the login procedure by inputting the ID and password given to the buyer through the membership registration procedure. If the connected buyer is not a member, the member registration process can be performed by entering member information. In this case, the member information may include a member's name, address, bank account number, credit card number, social security number, social security number or business registration number, products of interest to purchase, products for sale, and the like. The information entered by the purchaser is stored in the member database 39 in the central controller 30.

The central control unit 30 then stores the purchaser information entered when the purchaser accesses the central control unit 30 or the member information that the central control unit 30 finds in the member database 39 by the purchaser ID. Save to 41.

When the buyer searches for the product in progress in the competition in step 67, the central control unit 30 provides the buyer with information about the product in progress in the competition.

According to an exemplary embodiment, information on a product in which a competitive trade is in progress may be provided to a buyer by category, and only information on a product corresponding to information on a product category in which the buyer is interested in purchasing among products in which a competitive trade is in progress may be provided to the buyer. It may be provided to.

At this time, the information about the product must include information about the product itself, that is, the name, number, quality, quantity, etc. of the product, the highest price entered by other buyers, the highest maximum among other buyers. The price, purchase conditions excluding the maximum price entered by other buyers, and purchase conditions excluding the maximum price entered by other buyers may not include, or may include, one or more of them. In this regard, the competitive trade in the present invention includes both auction and bidding.

According to an exemplary embodiment, a buyer may input a maximum price for a product he / she wants to purchase without searching for a product that is in competition. There are various ways to get information about the products that are in competition, and if the buyer has obtained information about the products that are in competition, the buyer does not search for the products that are in competition, This is because the maximum price can be entered for the product.

In this way, the buyer performs a search for a product in which competition is in progress in step 67, and then participates in the competition by entering a maximum price for the product he wants to purchase in step 68. At this time, according to the embodiment, it is possible to allow the buyer to participate in the competitive trade only at a price higher than the maximum price entered for a particular product. In addition, the buyer may enter the purchase conditions excluding the maximum price to modify the terms of sale of the seller to make a new offer to the seller. The purchase condition entered by the buyer is stored in the competition traffic proceeding database 41.

Participation in the competitive trade in the method according to the invention is closed in two ways (69) and the buyer is determined (70).

While the competition is in progress, the seller transmits a closing message to the central control unit 30 to participate in the competition, or when the predetermined competition deadline is reached, the central control unit 30 ends the participation in the competition. The buyer who entered the maximum price may be determined as the buyer (70).

According to an embodiment, if the seller selects and enters one buyer among the buyers after the closing of the competitive trade participation 69, the seller may select the buyer as the buyer (70). In addition to the price of the product, there are various considerations in the contract, such as the buyer's credit and the person who pays the shipping fee. This is to allow the seller to select the buyer entered by the buyer to determine the buyer.

In another embodiment, a plurality of buyers may be determined from a plurality of buyers if the quantity of goods sold is plural.

When the buyer is determined in step 70, the central controller 30 draws one of the prices between the minimum price entered by the seller and the maximum price entered by the buyer.

At this time, the lottery method can be directly determined by the central control unit 30 without the participation of either or both parties to the contract.

According to the embodiment, one or both parties to the trading contract participated, such as the archery type lottery method, the dart type lottery method, the roulette type lottery method, the pachinko type lottery method, the lottery selective lottery method, the lottery scratching type lottery method. It is also possible to determine later by the central controller 30.

6 is an example of a screen in which an archery-type lottery method is implemented, in which a price is placed between a maximum price of the buyer and a minimum price of the seller in a target range and a target rotation is selected (S10), the target is returned and the archery is selected. At S11, the price is determined by shooting the bow S12 at a target and hitting a specific price.

7 is an example of a screen in which a lottery selection-type lottery method is implemented. When one of the lotteries (S20) is selected and the selected lottery (S20) is scraped with a mouse, the price is determined by displaying the price.

According to the embodiment, the commodity price may be determined as the commodity price by the price determined by one of the parties to the trading contract and the commodity price may be determined by the average price of two prices determined by both parties participating in the lottery.

At this time, it is desirable that the drawability of each price between the maximum price and the minimum price be equal.

The method assigns a random number of the same range to each price belonging to the lottery target price group and generates one random number by a random number generating program built in the central controller 30 to generate one random number. By comparing the random number range assigned to the price can be determined to win the price that includes the random number in the random number range.

In the example of FIG. 5, when the target turning button S10 is pressed, one random number is generated, and the bow is inserted at a price S13 having the random number generated in the random number range.

In the embodiment of FIG. 6, when one lottery ticket is selected (S20), one random number is generated. When the selected lottery ticket S20 is scratched with a mouse, a price having a random number in the random number range appears.

In another embodiment, the same range of random numbers are assigned to eight prices ranging from 1,000 won to 8000 won in FIG. 6, and then the price having random numbers generated by generating random numbers is the price of the first lottery, and then for the remaining prices. The same process can be repeated to set the price of the first to eighth lottery tickets, then select one of them and scrape it with the mouse to determine the lottery price.

In another embodiment, there is a lottery method using time.

In FIG. 5, after allocating the range of the same time for each price, the time from selecting the target item (S10) to selecting the archery item (S11) is divided by the total time of the lottery target prices. The bow is inserted at the price (S13). That is, 0.0 seconds ≤ 1000 won <0.1 seconds, 0.1 seconds ≤ 2000 won <0.2 seconds, 0.2 seconds ≤ 3000 won <0.1 seconds, 0.3 seconds ≤ 4000 won <0.4 seconds, 0.4 seconds ≤ 5000 won <0.5 seconds, 0.5 seconds ≤ 6000 If the time from the selection of the target running item (S10) to the selection of the archery item (S11) is 5.12 seconds after setting the circle <0.6 sec, 0.6 sec ≤ 7000 won <0.7 sec, 0.7 sec ≤ 8000 won <0.8 sec. 5.12 ÷ 0.8 = 6... 0.32, so the bow is inserted at 4000 won.

In FIG. 6, the time from when the mouse moves to selecting the lottery after the screen of FIG. 6 is displayed or after the screen of FIG. 6 is divided into the total time of the lottery target prices is determined as described above.

According to the embodiment, the possibility of drawing each price between the maximum price and the minimum price may be adjusted. In other words, it is possible to adjust the possibility of drawing a price close to the middle price among the prices between the maximum price and the minimum price. If the maximum price above a certain level is entered, the possibility of drawing a price close to the minimum price among the maximum price and the minimum price can be adjusted higher.If the minimum price above a certain level is entered, the maximum price between the maximum price and the minimum price can be adjusted. The possibility of drawing a lottery closer to the maximum of each price can be adjusted higher.

The method assigns a weight to each price belonging to the lottery target price group, assigns a random number range to each price in proportion to the weight, and then generates one random number by a random number generation program built in the central controller 30. By comparing the generated random number and the random number range of the individual assigned to it can be determined to win the price including the random number in the random number range.

In FIG. 6, weights are assigned according to eight prices from 1,000 won to 8000 won, and a random number range is assigned to each price in proportion to the weight, and then one random number is generated when one lottery is selected. The price with random numbers in the random range is shown.

In FIG. 6, weights are assigned according to eight prices from 1,000 won to 8000 won, and a random number range is assigned to each price in proportion to the weight, and then a price having random numbers generated by generating random numbers is used as the price of the first lottery. Repeat the same process for the next remaining prices, set the price of the first lottery to the eighth lottery, then select one of them and scrape with the mouse to determine the price of the lottery to appear.

In another embodiment, there is a method of adjusting the lottery possibility of each price in the lottery method using time.

In FIG. 5, weights are assigned according to each price belonging to the lottery target price group, and a time range is allocated for each price in proportion to the weight, and then, when the target turning item (S10) is selected and the bow shooting item (S11) is selected. The bow is plugged into a price (S13) that has a time range that is divided by the total time of the lottery target prices.

In FIG. 6, the time from when the mouse moves to the time of selecting the lottery after the screen of FIG. 6 is displayed or after the screen of FIG. 6 is displayed is determined as the remaining time as divided by the total time of the lottery target prices.

In another embodiment, the price of a large unit may be drawn primarily, and the drawn price may be divided by the price of a small unit and drawn secondly, or the process may be repeated. In other words, if the minimum price is 1,000 won and the maximum price is 8000 won, the price of 1,000 won is drawn first. If the 4000 won is won, the minimum price is 3600 won and the maximum price is 4400 won. You can draw and repeat this process.

In step 72, the central control unit 30 determines the competitive trade information, that is, the seller, the buyer, the lottery price, the purchase conditions excluding the maximum price, etc., by using a computer to determine the price of the competitive trade site for the seller and the buyer. Sellers, buyers' screens, e-mails or cell phone text messages will be notified.

Subsequently, the process proceeds to the buyer's payment for the goods in step 73. The method is the same as in the embodiment according to FIG. 4.

4 is a flowchart illustrating a competitive trafficking method of determining a product price by using a computer according to another embodiment of the present invention. Referring to FIG. 4, a method according to another embodiment of the present invention includes a purchaser mode including steps 81, 82, 83, 84, and 93 and a seller mode including 85, 86, 87, 88, and 94. Is done. The method according to another embodiment of the present invention is also executed by the apparatus 30 shown in FIG.

In the following, a purchase contract is entered under the condition that the buyer enters at least the maximum price as a component, and the seller's minimum price input is an acceptance provided that there is no other seller's lower price. The status is changed to the buyer's status. Price lottery is only a pricing method and does not affect the establishment of a sales contract. However, if the seller enters the terms of sale excluding the minimum price, this is an offer and the buyer's choice of seller is accepted. At this time, a sales contract is established and the buyer's status is changed to the buyer's status.

Referring to FIG. 4, first, the buyer selects the buyer mode by connecting to the central controller 30 through the buyer interface 11, 13 in step 81. At this time, the purchaser inputs the purchaser information to the central controller 30. According to an embodiment, it is also possible for the purchaser to enter a member ID and password to log in during the connection process of step 81. In this case, if the buyer is not a member, the member information may be entered and then the membership registration process may be performed.

Member information input by the buyer may include a member name, address, bank account number, credit card number, social security number, social security number or business registration number, products of interest, products sold. Member information entered by the buyer is stored in the member database 39 of the central control unit 30.

The central control unit 30 then stores the member information found in the member database 39 with the purchaser information or the buyer member ID inputted by the buyer after accessing the central control unit 30 to the competitive sales progress database 41. Save it.

In step 82, the buyer inputs a product to be purchased into the central controller 30. In this case, the input method may be directly input by the buyer.

According to an embodiment, the central control unit 30 transmits data about goods to a connected buyer, for example in the form of a goods list or an electronic catalog.

Here, the data about the product is stored in advance in the central control unit 30, in particular the product information database 43, the data about the product output from the central control unit 30 is the buyer's modem (12, 14) and It is transmitted to the purchaser's computer connected to the central controller 30 via the purchaser interface 11, 13. Such an electronic catalog may include a product name or a model name, a manufacturer, a photographic image of a product, and information on a maximum competitive price of a product.

The buyer then retrieves and enters the desired product in the electronic catalog in step 82. That is, the purchaser may search for and input a product to be purchased, for example, a specific electronic product, a car, or a real estate service, from among the products displayed in the electronic catalog displayed on the computer monitor. When the purchaser selects a product through the electronic catalog, the central control unit 30 may deliver more detailed additional data about the selected product to the buyer.

According to another embodiment, it is also possible for a buyer to search for and enter a product to purchase using a search engine.

In step 83, the buyer inputs a purchase condition of the product, in which the purchase condition may include a quantity of the product, a destination of the product, and a payment method for the product, in addition to the maximum price of the product.

In this case, the buyer may enter a deadline for participation in the competition at the purchase condition input phase of the product. The deadline for participating in the competitive trade may be arbitrarily designated by the buyer. The buyer may select one of the selected deadlines entered by the central controller 30. Otherwise, the buyer may select the deadline for entering the central controller 30. May be set automatically. In addition, according to the embodiment, the buyer may select a configuration in which participation in the competition trade is automatically closed when a predetermined period of time, for example, one day has elapsed from the application for competition trade, without specifying a deadline of the buyer.

The central control unit stores the above purchase conditions in the competition traffic proceeding database 41.

In step 84, the central control unit 30 starts a competitive sale of goods entered by the buyer.

The central control unit 30 stores information indicating that the competitive trade for the commodity entered by the buyer has started in the competitive trade progress database 41.

In this way, if competition is started in step 84, the buyer mode is completed, and then the seller mode is performed.

At least one seller connects to the central control unit 30 via the merchant interfaces 15 and 17 in step 85 to select the seller mode provided by the central control unit 30. At this time, the seller enters the seller information into the central control device (30). According to an embodiment, in step 86, the seller may execute the login procedure by inputting the ID and password given to the seller through the membership registration procedure. If the seller is not a member, the membership registration process can be performed by entering member information. At this time, the member information may include a member's name, address, bank account number, credit card number, social security number, social security number, business registration number, products of interest, products sold. The information entered by the seller is stored in the member database 39 in the central controller 30.

The central control unit 30 then stores the purchaser information entered when the seller accesses the central control unit 30 or the member information that the central control unit 30 finds in the member database 39 by the seller ID. Save to 41.

When the seller searches for the product in progress in the competition in step 87, the central control unit 30 provides the seller with information about the product in progress in the competition.

According to an embodiment, information about a product in which a competitive trade is in progress may be provided to the seller by category, and only information about a product corresponding to information on a product category sold by the seller among products in which a competition is in progress is provided to the seller. May be provided.

In this case, the information about the product must include information about the product itself, that is, the name, number, quality, quantity, etc. of the product, the minimum price entered by other sellers, and the lowest minimum price entered by other sellers. The price, sales conditions excluding minimum prices entered by other sellers, and sales conditions excluding minimum prices entered by other sellers, may not include, or may include, one or more of them.

In this regard, the competitive trade in the present invention includes both reverse auction and reverse bid.

According to an exemplary embodiment, a seller may input a sales condition of at least a minimum price as a component of a product to be sold by the seller without searching for a product that is in competition.

There are many ways to get information about the products that are in competition, and if the seller has obtained information about the products that are in the process of competitive trading, the seller does not search for the products that are in competition. This is because it is possible to enter a sales condition for at least a minimum price as a component of a desired product.

In step 88, the product to be sold is entered into a competitive trade by inputting a minimum price.

At this time, according to an embodiment, the seller may allow the seller to participate in the competitive trade only at a price lower than the minimum price entered for the specific product. In addition, the seller may enter a sale condition excluding the minimum price to modify the purchase condition of the buyer to make a new offer. In this way, the sales conditions entered by the seller are stored in the competition sales proceeding database 41.

Competitive trade participation in the method according to the present invention may be closed (89) and determined by the seller in two ways (90).

While the competition is in progress, the buyer sends a competition participation participation closing message to the central control unit 30, or when the predetermined deadline for participation in the competition is reached, the competition is closed (89) and the seller enters the minimum price at that time. May be determined to be the seller (90).

After the competitive trade participation deadline 89, the buyer may select one of the sellers and decide to be the seller (90).

In addition to the price of the product, there are various considerations in the contract, such as the seller's credit and the person who pays the shipping fee.Therefore, the above minimum seller entered a minimum price higher than the other sellers. This is to allow the buyer to select the seller entered and decide to be the seller.

In another embodiment, if there are a plurality of purchased goods, a plurality of sellers may be determined among the sellers.

If the seller is determined in step 90, the central controller 30 draws one of the prices between the maximum price entered by the buyer and the minimum price entered by the seller.

At this time, the drawing method is the same as the embodiment of FIG.

In step 92, the central control unit 30 competes to determine the price of the commodity using the computer to the buyer, the seller, etc. of the competitive trade information, that is, the buyer, the seller determined as the seller, the lottery price, and the maximum price. Buyer, seller screen of the trading site and the e-mail (e-mail) or mobile phone via text message.

Subsequently, the process proceeds to the buyer's purchase price of goods in step 93.

In one embodiment, the method of making a payment by opening the buyer account 45 is as follows.

For example, the payment method using a credit card is as follows.

The buyer selects a credit card as a payment method and transmits the payment data to the central controller 30 accordingly. The payment data includes his credit card account number, expiration date, issuer name, and credit purchase limit.

The central control unit 30 then stores the selected credit card payment method selected by the buyer and the payment data in the payment database 44.

The central control unit 30 then finds the buyer's credit card number in the payment database 44. The credit card number thus found is transmitted to the payment processing unit 37. The payment processing device 37 connects to a credit card company to obtain approval. The credit card company sends the amount to the central control unit (30).

The central control unit 30 then opens the buyer's account 45 and stores the amount remitted from the credit card company.

The central control unit 30 then transfers the payment from the buyer account 45 to the seller account 46. The central control unit 30 then updates the payment database 44 to indicate that payment has been made.

As another example, the central control unit 30 opens the buyer account 45 to store the buyer's credit card payment data, sends the credit card payment data to the seller account 46, and then informs that the next payment has been made. The payment database 44 may be updated.

In another embodiment, a payment method using account transfer is as follows.

The buyer selects a bank transfer as a payment method and transmits the payment data to the central controller 30. The settlement data includes the buyer's bank name and his account number.

The central control device 30 stores the payment method of the wire transfer payment and the payment data in the payment database 44.

The buyer then transfers the money from his account to the central control unit 30.

The central control unit 30 then opens the buyer account 45 and stores the money remitted from the buyer. The central control unit 30 then transfers the payment from the buyer account 45 to the seller account 46.

The central control unit 30 then updates the payment database 44 to indicate that payment has been made.

In another example, the central control unit 30 may process payments made directly between the buyer and seller by providing payment information to each party.

For example, the buyer may send the seller's account number.

The central control unit 30 then updates the payment database 44 to indicate that payment has been made.

Another example is a payment method using electronic money.

The buyer selects the electronic money as the payment method and transmits the payment data to the central controller 30. The payment data will include the buyer's electronic delivery address.

The central control unit 30 then stores the buyer's electronic money payment method selection and the buyer's electronic delivery address in the payment database 44.

The buyer then transmits the electronic money to the central control unit 30.

The central control unit 30 then opens the buyer account 45 and stores the electronic money received from the buyer.

The central control unit 30 then transfers the electronic money from the buyer account 45 to the seller account 46.

The central control unit 30 then updates the payment database 44 to indicate that the payment has been completed.

In the above embodiments, the seller describes a protocol in which the seller is immediately paid for the sale for which the price of the product is determined, but in other embodiments, the payment may be delayed until the buyer receives the product or until the refund period.

The conditional account 48 ensures that the buyer will pay and at the same time postpones the payment upon completion of the seller's delivery or until the expiration of the refund period.

The central control unit 30 opens the conditional account 48 as a temporary fund deposit account.

The central control unit 30 then transfers the goods price from the buyer account 45 to the conditional account 47.

The central control unit 30 then transfers the price of the goods from the conditional account 47 to the seller account 45 until the buyer has received the goods or the refund period has passed.

As an example, the first central control unit 30 provides the delivery person with delivery confirmation information (contains information such as contract number, buyer ID, seller ID, etc.) or tracking number, that is, for a specific cargo. Tracking service, i.e., a service on the deliveryman's web site, to confirm that the goods consigned by the deliveryman are delivered and received by the other party, to confirm that the goods are delivered and received by the other party. Send the required number and the delivery person transmits the delivery authentication information and the delivery confirmation message to the central control unit 30, or the second control unit while formally authorizing the buyer to send the funds placed in the conditional account 48 to the central control unit ( 30, the buyer authentication information and payment message is transmitted or the third delivery person delivers the authentication information and the delivery confirmation message to the central control unit 30. Number, buyer ID, seller ID, etc. When you transfer the information to determine the identity included) of the contract of sale in the central control unit (30) is transferred from the conditional cash accounts (48) accounts for the seller (45).

More specifically, in the first embodiment, the central control unit 30 receives the tracking number from the seller and transmits it to the delivery person to confirm the delivery. In the third embodiment, the delivery contractor contracts when the delivery is consigned from the seller. After receiving the information, it can be used to send a delivery confirmation message to the central control unit (30).

In another embodiment, the central control unit 30 transmits the return confirmation information (including the identification number, the buyer ID, the seller ID, information such as the identification of the corresponding sales contract) or tracking number to the delivery person, and the delivery confirmation message to the delivery person. Send the refund to the central control unit 30 to send the refund message to the central control unit 30 or send the refund to the central control unit 30 to the buyer to confirm the return or the seller placed in the conditional account 48; When the return confirmation message (containment information, such as contract number, buyer ID, seller ID, etc. to confirm the identity of the corresponding sales contract) is sent, the price is transferred from the conditional account 47 to the buyer account 45.

More specifically, in the first embodiment, the central control unit 30 receives the tracking number from the buyer and transmits it to the delivery person to confirm the return. In the third embodiment, the delivery contractor contracts when the delivery is consigned from the buyer. The information can be received and a return confirmation message can be sent to the central control unit 30 using the information.

In another embodiment, the buyer pays some money when contracting for a sale and completes the remaining payment when the goods arrive. Only a part of the input trading price is settled in the sales contract is a condition of purchase conditions and sales conditions, and the conditions are stored in the settlement database 44 when the sales contract is concluded. The central control unit 30 pays a part of this price and then passes the remaining part when the goods are delivered.

In another embodiment, the purchase condition, sale condition entails a partial payment. When a sales contract is made, the first payment is made and the remainder is paid as described in the conditions of purchase, terms of sale. In the payment database 44, the dates of payment are recorded.

In another embodiment, a purchaser account 47 may be opened to make a payment.

For example, the payment method using a credit card is as follows.

When a purchaser enters into the computer a purchase condition that includes at least the maximum price of the product in which the competitive trade is in progress, or enters a purchase condition into the computer that includes at least the maximum price of the product that the buyer wants to purchase. When a credit card is selected as a payment method, the payment data is transmitted to the central controller 30.

The central control unit 30 then stores the credit card payment method selected by the buyer and the payment data in the payment database 44.

The central control unit 30 then finds the buyer's credit card number in the payment database 44. The credit card number thus found is transmitted to the payment processing unit 37. The payment processing device 37 connects to a credit card company to obtain approval. The credit card company sends the maximum price equivalent amount entered by the buyer to the central control unit (30). The central control unit 30 opens the purchaser account 45 and stores the amount transferred from the credit card company.

As another example, the payment processing device 37 connects to a credit card company to obtain prior approval. The credit card company sends the pre-authorization code of the maximum price equivalent amount entered by the buyer to the central control unit (30). The central control unit 30 opens the buyer account 47 and stores the pre-authorization code sent from the credit card company.

The central controller 30 then receives the payment using the pre-approval code after the product price is determined and stores it in the buyer account 47 and transfers the payment to the seller account 46 or the buyer credits to the seller account 46. Send credit card payment data such as card number and preauthorization code.

As another example, the payment method using account transfer is as follows.

When a purchaser enters into the computer a purchase condition that includes at least the maximum price of the product in which the competitive trade is in progress, or enters a purchase condition into the computer that includes at least the maximum price of the product that the buyer wants to purchase. When payment is selected as a payment method and transfers the payment data to the central control device (30).

The payment data includes the buyer's bank name and his account number. The central controller 30 stores the wire transfer payment selection and its payment data in the payment database 44.

The purchaser then transfers the maximum price equivalent amount inputted by him to his central controller 30. The central control unit 30 then opens a buyer account 45 to store the money remitted from the buyer.

Another example is a payment method using electronic money.

When a purchaser enters into the computer a purchase condition that includes at least the maximum price of the product in which the competitive trade is in progress, or enters a purchase condition into the computer that includes at least the maximum price of the product that the buyer wants to purchase. When the electronic money is selected as the payment method, the payment data is transmitted to the central controller 30. The payment data will include the buyer's electronic delivery address.

The central control unit 30 then stores the electronic money selection and the buyer's electronic delivery address as the payment method of the buyer in the payment database 44.

Then, the buyer sends the maximum price equivalent electronic money input to the central control unit (30).

The central control unit 30 then opens a buyer account 47 and stores the electronic money received from the buyer.

In the embodiment of opening the buyer account 47, the payment method after opening the buyer account 47 is the buyer account 45 in the embodiment of opening the buyer account 45 Same as the payment method after opening.

In one embodiment of the invention the buyers and sellers communicate in an offline manner to the central control unit 30. Buyers and sellers use phone, fax, mail, or other offline communications rather than sending e-mail or using servers on the Web.

For example, some sellers can use the phone to enter sales terms. The buyer calls the central control unit 30 and contacts the helper. Seller will provide terms and conditions of sale such as product name, product description, terms, expiration date and minimum price. The seller also provides his or her ID, password, or personal password to verify his or her identity at the central control unit 30. When the helper types this information into a digital form to the terminal, it is sent to the central control unit 30 as described in the online embodiment.

In another embodiment, the seller calls the central control unit 30 to access a typical interactive voice response device (IVRU) that allows the seller to enter some or all of the terms of the sale without the help of an assistant. The seller first selects the product menu by pressing the button on his button, and then follows the instructions to connect with a helper specializing in the product area or to provide the rest of the seller's requirements.

Competitive buyers can also use the phone to browse terms and contracts. The competition buyer calls the central control unit 30 and selects a target. The central control unit 30 then converts each purchase condition text into an audio format so that it can be read to the competition buyers. At any time while the terms of sale are heard, the competitor can select the terms of sale to be contracted and press a series of buttons on his phone. The competition buyer enters his ID and is authenticated by the central controller 30 prior to the competition purchase. Competitive buyers may also enter limits before listening to the list of terms of sale.

The same is true for sellers competing if the buyer enters a purchase condition with at least the maximum price as a component.

Although the configuration of the present invention has been described above with reference to the preferred embodiments of the present invention, those skilled in the art will understand that various modifications can be made without departing from the spirit of the present invention. . Accordingly, the scope of the present invention encompasses all embodiments included in the scope of the technical spirit of the invention described herein, and is determined by the appended claims.

According to the present invention, the participation of competitive trade is increased by reducing the possibility of being a Meridian or auction at too high or too low price due to intense competition, thereby activating competitive trade and ultimately activating e-commerce.

In addition, according to the present invention, the buyer obtains the possibility of profiting at the maximum price he wishes to pay, and the seller obtains the possibility of profiting at the minimum price he wishes to pay, so the participation of the competitive trade is increased. Can ultimately activate e-commerce.

In addition, according to the present invention, it is possible to adjust the lottery possibility of each commodity price between the maximum price and the minimum price to further increase the effect of the present invention.

Claims (32)

Competitive trading method that uses a computer to draw a commodity price, Inputting, on a computer, the terms of sale for which the seller intends to sell and at least its minimum price as a component; Inputting, by at least one buyer, a purchase condition into the computer, the component comprising at least a maximum price of the commodity under competition; Closing competition participation; Determining at least one buyer among the buyers; Determining a commodity price by drawing one of the prices between the maximum price and the minimum price entered by the buyer. The method of claim 1, wherein the determining of the buyer comprises determining the buyer based on the maximum price entered by the buyer or based on a buyer's selection among the buyers of the seller. The method of claim 1 or 2, wherein the drawing of one of the prices between the maximum price of the buyer and the minimum price to determine a commodity price comprises: each of the price between the maximum price of the buyer and the minimum price. Adjusting the likelihood of a raffle of prices. The method of claim 1 or 2, wherein the step of determining the commodity price by drawing one of the prices between the maximum price of the buyer and the minimum price comprises one or both parties participating in the trading contract. The method comprising the step of. The method of claim 1 or 2, wherein the drawing of one of the prices between the buyer's maximum price and the minimum price to determine a product price comprises drawing a price using random numbers or time. Characterized in that. The method according to claim 1 or 2, wherein the purchaser inputs a purchase condition to the computer at least with the maximum price as a component thereof. The buyer makes a payment; Paying the seller after the product price is determined. The method according to claim 1 or 2 Making a payment after the price of the goods is decided by the buyer; Confirming delivery or the buyer entering a payment authorization into a computer or a delivery person entering a delivery confirmation into a computer; And paying the seller for the goods. The method according to claim 1 or 2 Making a payment by the buyer after commodity price determination; Confirming the return or the seller enters the refund authorization into the computer or the delivery person enters the return confirmation into the computer; Refunding the purchase price to the buyer. Competitive trading method that uses a computer to draw a commodity price, Inputting, on a computer, a purchase condition, the product of which the buyer intends to purchase and at least its maximum price as a component thereof; Inputting, by the computer, at least one seller into the computer the terms of the sale of which the at least minimum price of the commodity under competition is a component thereof; Closing competition participation; Determining at least one seller from the sellers; And drawing a price of one of the prices between the maximum price and the minimum price of the seller to determine a commodity price. 10. The method of claim 9, wherein determining the seller comprises determining the buyer based on a minimum price entered by the seller or based on a seller's selection of the seller's sellers. 11. The method of claim 9 or 10, wherein the drawing of one of the prices between the maximum price and the minimum price of the seller to determine the commodity price comprises: determining the price between the maximum price of the buyer and the minimum price. Adjusting the likelihood of a price being drawn. The method of claim 9 or 10, wherein the step of determining the commodity price by drawing one price among the prices between the maximum price and the minimum price of the seller comprises one or both parties of the trading contract lottery prices. The method comprising the step of. 11. The method of claim 9 or 10, wherein the drawing of one of the prices between the maximum price and the seller's minimum price to determine the price of the commodity comprises the step of drawing the price using a random number or time. Characterized in that. In claim 9 or 10 Wherein the purchaser enters into the computer a purchase condition having at least the maximum price as a component thereof, the purchaser making a payment; And making a payment to the seller after commodity price determination. In claim 9 or 10 Making a payment after the price of the goods is decided by the buyer; Confirming the delivery or the purchaser entering the payment authorization into the computer or the delivery person entering the delivery confirmation into the computer; And paying the seller. In claim 9 or 10 Making a payment by the buyer after commodity price determination; Confirming the return or the seller enters the refund authorization into the computer or the delivery user enters the return confirmation into the computer; The method of claim 1, further comprising the step of refunding the price of goods to the buyer. Competitive trading device that draws the price of goods using a computer. Memory; And A processing device connected with the storage device, The storage device stores a program for controlling the processing device. The processing device, Accept terms and conditions of sale for which the seller intends to sell and at least its minimum price as a component; Accepting the purchase conditions of which at least the maximum price is a component of a product in which at least one buyer is in competition; Close the competition, Determine at least one buyer from said buyers, And a program for determining a product price by drawing one of the prices between the maximum price and the minimum price of the buyer. The method of claim 17, The processing device is also characterized in that it operates by a program to determine the buyer based on the maximum price entered by the buyer or based on the buyer selection of the buyer of the seller. The method of claim 17 or 18, And the processing device is also operated by a program for adjusting the lottery possibility of each price between the maximum price of the buyer and the minimum price. The method of claim 17 or 18, And the processing device is also operated by a program for accepting one or both of the parties to the lottery. The method of claim 17 or 18, And the processing device is also operated by a program for drawing a price using random numbers or time. The method of claim 17 or 18, And the processing device is also operable by a program that accepts a buyer's payment when accepting a purchase condition having at least the maximum price of the buyer as its component, and pays to the seller after the product price is determined. The method of claim 17 or 18, The processing device is characterized in that it operates by a program for accepting the payment of the buyer after the price determination, confirming delivery or payment of the goods to the seller upon confirmation of payment or delivery confirmation of the buyer. The method of claim 17 or 18, The processing apparatus receives the buyer's payment after the price determination, Apparatus characterized in that it also operates by a program for refunding the price of goods to the buyer upon confirmation of return or acceptance of the seller's refund or confirmation of delivery of the seller. Competitive trading device that draws the price of goods using a computer. Memory; And A processing device connected with the storage device, The storage device stores a program for controlling the processing device, The processing device, Accept the terms and conditions of purchase of which the purchaser wishes to purchase and at least its maximum price as a component; Accept terms and conditions of sale of at least one of the sellers of the commodity on which the competition is underway, at least the minimum price of which is a component; Close the competition, Determine at least one seller from said sellers, And a program for determining a product price by drawing one price among prices between the maximum price and the minimum price of the seller. The method of claim 25, And the processing device is also operated by a program for determining a seller based on a minimum price input by the sellers or a seller's selection of the sellers of a buyer. The method of claim 25 or 26, And the processing device is also operated by a program for accepting one or both of the parties to the lottery. The method of claim 25 or 26, And the processing device is also operated by a program for drawing a price using random numbers or time. The method of claim 25 or 26, And the processing device is also operated by a program for adjusting the lottery possibility of each price between the maximum price and the seller's minimum price. The method of claim 25 or 26, The processing device accepts the buyer's payment when receiving the purchase condition whose component is at least the maximum price of the product, And a program for making a payment to the seller after commodity price determination. The method of claim 25 or 26, The processing device is also characterized in that the operation of receiving the payment of the buyer after the price determination, confirming the delivery or payment confirmation of the buyer or delivery of the delivery of the seller also operates by a program for paying the price of goods to the seller. The method of claim 25 or 26, And the processing device is operated by a program for accepting the buyer's payment after pricing and confirming the return or refunding the price of the goods to the buyer upon receiving the seller's refund approval or the delivery confirmation of the delivery person.