WO2005039130A1 - メール配送システム、メール配送方法およびメール配送プログラム - Google Patents
メール配送システム、メール配送方法およびメール配送プログラム Download PDFInfo
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- WO2005039130A1 WO2005039130A1 PCT/JP2004/015126 JP2004015126W WO2005039130A1 WO 2005039130 A1 WO2005039130 A1 WO 2005039130A1 JP 2004015126 W JP2004015126 W JP 2004015126W WO 2005039130 A1 WO2005039130 A1 WO 2005039130A1
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- 238000000034 method Methods 0.000 title claims description 152
- 238000012546 transfer Methods 0.000 claims abstract description 237
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims description 130
- 230000001172 regenerating effect Effects 0.000 claims description 27
- 238000002716 delivery method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 description 20
- 238000007726 management method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 238000004891 communication Methods 0.000 description 10
- 230000005764 inhibitory process Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/40—Business processes related to the transportation industry
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/48—Message addressing, e.g. address format or anonymous messages, aliases
Definitions
- the present invention receives an alias mail addressed to an alias address different from the called party address, replaces the address with the called party address, transfers the received mail, and receives and replies to the alias mail.
- the present invention relates to a mail delivery system, a mail delivery method, and a mail delivery program that transfer a mail by replacing the sender of the mail with a receiver address or an alias address.
- an alias address different from a real address is given to a user, and an alias mail (alias) addressed to the alias address is given to the user.
- an e-mail delivery system that relays e-mail) to a real address. More specifically, when an alias mail relay server having a DB (database) in which an alias address and a real address are associated with each other receives an alias mail addressed to the alias address, the alias mail is referred to and the corresponding real address is referred to. It is obtained, and the destination of the alias mail is replaced with the real address and transferred.
- DB database
- the above-mentioned alias mail relay server also has problems as described below. For example, if the mailing list in which a user has registered an alias address distributes only mail posted from the registered address (alias address) to other users, the source of the user's outgoing mail is the real address. As a result, it cannot be posted to the mailing list. Also, if the user uses an alias address to hide the real address, replying to the alias mail transferred from the alias mail relay server will send the reply mail source to the real address. As a result, the e-mail cannot be replied.
- a user can freely generate a plurality of alias addresses, and further, without using a DB in which alias addresses and real addresses are associated with each other.
- a mail delivery system capable of acquiring an address (for example, see Non-Patent Document 1). To explain this more specifically, the user may say "
- alias addresses such as "suzuki.ToTanaka®isp-A.ne.jp" can be freely generated by adding a control character string (ToTanaka) after a character string identifying the user (suzuki). Then, use multiple alias addresses properly.
- the alias mail relay server receives the alias mail addressed to the alias address, the alias mail relay server obtains the real address from the character string (for example, suzuki) identifying the user in the alias address, and determines the destination of the alias mail. Replace with the address and forward.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-152246
- Non-Patent Document 1 Aoki Taiga, “Spam Slicer, a service that fundamentally cuts off spam mail, started in the United States”, [online], “Searched October 15, 2003”, Internet
- the above-described conventional technology receives a mail whose source is a real address, replaces the source with a real address alias address, and transfers the mail.
- the burden of managing the database the delay in replacement processing, and the inability to apply to users having multiple alias addresses.
- the above-mentioned conventional technology (the conventional technology disclosed in Patent Document 1) prepares a DB (database) in which an alias address and a real address are associated with each other, and stores the database. Since it is necessary to refer to the replacement process (the process of replacing the address with an alias address), there is a problem that the management load of the database is increased, and the replacement process is delayed only for accessing the database. There was a point. Special In addition, in the situation where the alias addresses are generated indefinitely, the resources of the database may be infinitely necessary, and the management burden of the database and the delay of the replacement process become even more serious problems.
- a plurality of alias addresses are used. Even if you prepare a DB that associates an address with one real address, it is not possible to select an appropriate alias address with a unique real address. For this reason, even if the above-described conventional technology (the conventional technology disclosed in Patent Literature 1) is used, it is not possible to replace the source of the mail having the real address as the source with an appropriate alias address. There is a problem b that it cannot be applied to a user having a plurality of alias addresses.
- the present invention has been made to solve the above-described problems of the conventional technology, and is intended for a case where a mail having a real address as a source is replaced with an alias address and transferred.
- a mail delivery system that can be replaced with an alias address without using a database, reducing the management burden on the database, speeding up the replacement process, and applying it to users with multiple alias addresses.
- the purpose is to provide a mail delivery method and a mail delivery program.
- the invention according to claim 1 receives an alias mail addressed to an alias address different from the called party address, and changes the destination to the called party.
- a mail delivery system that transfers the received mail by replacing the address with the address, receives a reply mail to the alias mail, and replaces the source of the reply mail with the address of the receiver to the alias address.
- An alias mail processing means for replacing the called party address with the generated argument included in the alias mail and transferring the alias;
- the reply mail Reply mail that obtains a generation argument, regenerates the alias address with the generation argument and the receiver address indicating the source of the reply mail, and replaces the source of the reply mail with the alias address and forwards the reply mail.
- the alias mail processing means restores the receiver address and the generated argument when the alias mail is received.
- Called party address restoring means reply destination address creating means for creating a reply destination address including a generation argument restored by the called party address restoring means and a sender address indicating a source of the alias mail, and the alias An alias which replaces the destination of the mail with the called party address restored by the called party address restoring means, and replaces the source of the alias mail with the reply destination address generated by the reply destination address generating means and transfers the alias.
- Mail reply means wherein the reply mail processing means receives the reply mail when the reply mail is received.
- the reply destination address which is the destination of the reply mail
- the sender address restoring means for restoring the sender address and the generation argument, and the generation argument restored by the sender address restoring means and transmission of the reply mail
- An alias address regenerating means for reproducing the alias address from a recipient address indicating the origin, replacing the destination of the reply mail with the sender address restored by the sender address restoring means, and Reply mail transfer means for replacing the transmission source with the alias address regenerated by the alias address regenerating means and transferring the reply mail.
- the generation argument is information indicating a transfer condition to be satisfied by the alias mail transferred to the called party
- the alias mail processing means includes:
- the apparatus further includes transfer permission / non-permission determining means for determining whether the alias mail satisfies the transfer condition restored by the callee address recovery means, and the alias mail transfer means satisfies the transfer condition by the transfer permission / inhibition means It is characterized in that only the alias mails judged to be forwarded are forwarded.
- the transfer condition is a transfer condition that can be updated in accordance with the transfer of the alias mail
- the alias mail processing means includes: When the transfer permission / non-permission determining unit determines that the transfer condition is satisfied, the transfer condition determining unit further includes a transfer condition updating unit that updates the transfer condition and newly generates the generation argument. A reply destination address including a generation argument newly generated by the transfer condition updating unit is generated instead of the generation argument restored by the callee address restoration unit.
- the transfer condition is a transfer condition that can be updated in response to the reply of the alias mail
- the reply mail processing means includes:
- the apparatus further includes a transfer condition updating means for updating the transfer condition restored by the caller address restoring means and newly generating the generation argument, wherein the alias address regenerating means is restored by the caller address restoring means.
- An alias address including a generation argument newly generated by the transfer condition updating means is regenerated instead of the generation argument.
- the invention according to claim 6 relates to a callee alias address generated from a callee address and a predetermined callee generation argument, and a caller generated from a caller address and a predetermined caller generation argument.
- a mail transfer system for transferring mail using an alias address comprising: receiving mail addressed to a callee reply address generated from the callee alias address and a caller generation argument; Reply destination address capability The caller alias address and the caller generated argument are restored, the caller alias address is regenerated from the caller generated argument and the sender address indicating the source of the mail, and the mail destination And the source to the called party alias address and calling party alias address
- a second mail processing means for transferring and transmitting a reply mail having the sender reply destination address and the called party address as a destination and a sender. Destination address capability The caller alias address and the callee generation argument are restored, the callee alias address is reproduced from the callee generation argument and the callee address, and the destination and source of the mail are set to the caller.
- a third mail processing unit that replaces the alias address and the called party alias address and forwards the message, and, when receiving a reply mail addressed to the sender alias address and the called party alias address as the destination and the sender, transmits the mail.
- Caller alias address capability The caller address and caller generated argument are restored, and the caller generated argument and the callee aliaser addresser also generate a callee reply destination address, and specify the destination and source of the mail.
- Caller and called party reply-to addresses A fourth mail processing means for replacing to transfer, and further comprising a.
- the callee generation argument is information indicating a transfer condition to be satisfied by a mail transferred to the callee
- the caller generation argument is:
- the second mail processing means is information indicating a transfer condition to be satisfied by a mail returned to the sender, and the mail includes a transfer condition relating to the callee generation argument restored from the callee alias address. It is determined whether the condition is satisfied or not, and only the mail that satisfies the transfer condition is transferred, and the fourth mail processing means sets the transfer condition related to the caller generation argument restored from the caller alias address in the mail. It is characterized in that it is determined whether or not the condition is satisfied, and only the mail satisfying the transfer condition is transferred.
- the invention according to claim 8 is characterized in that an alias mail addressed to an alias address different from the called party address is received, the destination is replaced with the called party address, and the mail is transferred.
- An alias mail processing step of transferring the alias mail included in the alias mail, and the alias mail transferred by the alias mail processing step When a reply e-mail is received, the response e-mail is acquired, and the generation argument is acquired.
- the alias mail processing step restores the callee address and the generated argument when the alias mail is received.
- a mail transfer step wherein the reply mail processing step is performed when the reply mail is received.
- the reply destination address which is the destination of the reply mail
- the generation argument is information indicating a transfer condition to be satisfied by the alias mail transferred to the called party
- the alias mail processing step includes: A transfer permission determining step of determining whether the alias mail satisfies the transfer condition restored by the callee address restoring step; and the alias mail transfer step satisfies the transfer condition by the transfer permission determining step. It is characterized in that only the alias mails judged to be forwarded are forwarded.
- the invention according to claim 11 provides a callee alias address generated from a callee address and a predetermined callee generation argument, and a caller alias address generated from a caller address and a predetermined caller generation argument.
- Mail forwarding using email A method comprising: receiving mail addressed to a called party reply address generated from the called party alias address and a caller generated argument; and receiving the mail to the called party reply destination address.
- the generation argument is restored, the sender alias address is regenerated from the sender generation argument and the sender address indicating the sender of the mail, and the destination and sender of the mail are set to the receiver alias address and the sender.
- the callee generation argument is information indicating a transfer condition to be satisfied by the mail transferred to the callee
- the caller generation argument is
- the second mail processing step is information indicating a transfer condition to be satisfied by the returned mail, and the second mail processing step determines whether the mail satisfies the transfer condition related to the callee generation argument restored from the callee alias address.
- the transfer condition Only the mail that satisfies the condition is transferred, and the fourth mail processing step determines whether or not the mail satisfies the transfer condition relating to the caller-generated argument restored from the caller alias address, and determines the transfer condition. It is characterized in that only the mail that satisfies is transferred.
- the invention according to claim 13 is the invention according to the above invention, in which an alias mail addressed to an alias address different from the called party address is received, and the destination is replaced with the called party address and transferred.
- a mail delivery program for causing a computer to execute a method of receiving a reply mail to the alias mail and replacing a source of the reply mail with the address of the receiver address and transferring the alias address.
- the alias address is restored and the receiver address and the generation argument are restored, and the destination of the alias mail is set to the receiver.
- An alias mail process that replaces the address with the address and transfers the generated bow I number in the alias mail.
- the response mail ability obtains the generation argument, and a recipient indicating the generation argument and the origin of the reply mail.
- the alias mail processing procedure includes, when receiving the alias mail, an incoming call for restoring the alias address and the callee address and a generation argument.
- Address restoring procedure a reply destination address generating procedure for generating a reply destination address including a generation argument restored by the called party address restoring procedure and a sender address indicating a source of the alias mail
- the alias mail Alias mail that replaces the destination of the alias mail with the called party address restored by the called party address restoring procedure, and replaces the source of the aliased mail with the reply destination address generated by the reply destination address generating procedure, and forwards the alias mail.
- the reply destination address which is the destination of the reply mail is transmitted by the sender address restoring procedure for restoring the sender address and the generation argument, and the sender address restoring procedure.
- the restored argument and the receiver address indicating the sender of the reply mail.
- the alias address regenerating procedure for regenerating the alias address, and the sender of the reply mail restored by the sender address restoring procedure.
- the reply mail transfer procedure of replacing the source of the reply mail with the alias address reproduced by the alias address regeneration procedure and transferring the reply mail is performed by the computer.
- the generation argument is information indicating a transfer condition to be satisfied by the alias mail transferred to the callee
- the alias mail processing procedure includes: The method further includes a transfer permission / non-permission determining step of determining whether the alias mail satisfies the transfer condition restored by the callee address recovery step, and the alias mail transfer step satisfies the transfer condition by the transfer permission / prohibition step. It is characterized in that only the alias mails judged to be forwarded are forwarded.
- the invention according to claim 16 provides a callee alias address generated from a callee address and a predetermined callee generation argument, and a caller alias address generated from a caller address and a predetermined caller generation argument.
- a mail transfer program for causing a computer to execute a method of transferring mail using the method described above, wherein a mail addressed to the called party alias address and the generated caller reply address is received.
- the callee generation argument is information indicating a transfer condition to be satisfied by a mail transferred to the callee
- the caller generation argument is:
- the second mail processing procedure is information indicating a transfer condition to be satisfied by a mail returned to the sender, and the mail includes a transfer condition related to the callee generation argument restored from the callee alias address. It is determined whether the condition is satisfied, and only the mail that satisfies the transfer condition is transferred. It is characterized in that it is determined whether or not the condition is satisfied, and only the mail satisfying the transfer condition is transferred.
- FIG. 1 is a system configuration diagram showing an entire configuration of a mail delivery system according to a first embodiment.
- FIG. 2 is a sequence diagram illustrating a processing procedure according to the first embodiment.
- FIG. 3 is a flowchart illustrating a flow of an alias address generation process according to the first embodiment.
- FIG. 4 is a flowchart illustrating a flow of a user address restoring process according to the first embodiment.
- FIG. 5 is a flowchart illustrating a flow of a reply destination address generation process according to the first embodiment.
- FIG. 6 is a flowchart showing a flow of a reply address restoring process according to the first embodiment.
- FIG. 7 is a system configuration diagram illustrating an overall configuration of a mail delivery system according to a second embodiment.
- FIG. 8 is a sequence diagram illustrating a processing procedure according to the second embodiment.
- FIG. 9 is a flowchart illustrating a flow of an alias address generation process according to the second embodiment.
- FIG. 10 is a diagram showing a configuration example of control information.
- FIG. 11 is a flowchart illustrating a flow of a user address restoring process according to the second embodiment.
- FIG. 12 is a flowchart illustrating a flow of a transfer permission / inhibition determination process according to the second embodiment.
- FIG. 13 is a flowchart illustrating a flow of a control information update process 1 according to the second embodiment.
- FIG. 14 is a flowchart showing a flow of a control information update process 2 according to the second embodiment.
- FIG. 15 is a diagram for explaining an outline of a second embodiment.
- FIG. 16 is a diagram for explaining an outline of a third embodiment.
- the "recipient” used in this embodiment is, in principle, a person who receives an alias mail addressed to an alias address described later, and the "originator” used in this embodiment is, in principle, , The person who sends the alias mail.
- the mail address (real address) originally possessed by the "recipient” is referred to as “recipient address R”, and the "sender” inherently possesses the e-mail address.
- the mail address is referred to as a “sender address S”.
- control information used in the present embodiment is, in principle, information indicating a transfer condition to be satisfied by an alias mail to be transferred to a called party. As shown in (1), information including conditions related to transfer permission / non-permission determination, such as a sender address permitted to transfer, the number of times transfer is permitted, and information generated from the expiration date of permission, corresponds to this. Note that this “control information” is one of the above “alias address generation arguments”, and therefore, from the second embodiment described later, “control information C ".
- the mail delivery system according to the present embodiment is configured such that an alias mail relay server receives an alias mail addressed to an alias address X (R, C) different from the recipient address R, and receives the address. To the recipient address R and forward it.At the remailer, receive the reply mail to the alias mail and replace the source of the reply mail with the recipient address R alias address X (R, C). Forward.
- the alias mail relay server receives the alias mail.
- the receiver address R and the alias address generation argument C are restored from the alias address X (R, C).
- a reply destination address Y (S, C) including the restored generation argument C and the sender address S which is the source of the alias mail is generated.
- the destination of the alias mail is replaced with the called party address R, and the source of the aliased mail is replaced with the reply destination address Y (S, C) and transferred to the called party's communication terminal.
- the alias address X (R, C) is regenerated from the restored generation argument c and the addressee of the reply mail. Then, the destination of the reply mail is replaced with the sender address S, and the sender of the reply mail is replaced with the alias address X (R, C) and transferred to the sender's communication terminal.
- the alias address is obtained from the database in which the alias address and the called party address are associated with each other during the transfer process by the remailer. Since the alias address is regenerated from the reply mail itself instead of performing the replacement, it can be replaced with the alias address without using the database, which can reduce the management burden on the database and increase the speed of the replacement process. It becomes possible to plan a dagger. In particular, even in a situation where an infinite number of alias addresses are generated, it is possible to smoothly execute the replacement processing by a remailer that does not need to consider database resources at all.
- a destination address and an alias address generated from an alias address generation argument are used instead of using an alias address that is associated one-to-one with a real address. Because it uses, it can be applied to users who use different alias addresses using different alias address generation arguments.
- the alias address generation argument is included in the sender of the alias mail, so that it is not necessary to execute a special mail reply process on the receiver's terminal. By simply executing the mail reply process, the return argument can include the necessary arguments for regenerating the alias address.
- a database is not required for transfer by an alias mail relay server, so that the management load on the database can be reduced and the process of replacing an alias address with a real address can be performed. High-speed dangling can be realized similarly.
- Example 1
- FIG. 1 is a system configuration diagram illustrating an entire configuration of a mail delivery system according to the first embodiment.
- this mail delivery system includes a sender terminal 1, a receiver terminal 2, a sender mail server 3, a receiver mail server 4, an alias mail relay server 10, a remailer, 20 and a network (communication network formed by the source IP network 5, destination IP network 6, Internet 7, LAN 8, router R, and firewall FW). Is done.
- the alias mail relay server 10 corresponds to the alias mail processing means of claim 1 and the remailer 20 corresponds to the reply mail processing means of claim 1 and the like.
- the sender terminal 1 and the receiver terminal 2 are at least a known personal computer or workstation, a home game machine, an Internet TV, a PDA, or a mobile phone or a PHS on which e-mail software is installed.
- Mobile communication terminals such as More specifically, the sender terminal 1 is used by a sender who sends an e-mail to the called party. This terminal also has the role of receiving a reply mail to this alias mail from the recipient.
- the receiver terminal 2 is a terminal used by the receiver who receives the alias mail transmitted from the sender, and also has a role of transmitting a reply mail to the alias mail to the sender. Further, the receiver terminal 2 performs a process of generating an alias address which is a destination of the alias mail. This alias address generation processing will be described later in detail (see FIG. 3).
- the outgoing mail server 3 and the incoming mail server 4 are so-called known mail servers. More specifically, the originating mail server 3 has a role of accepting an alias mail from the sender terminal 1 and transmitting a reply mail to the alias mail to the sender terminal 1. Has a role of transmitting the alias mail to the receiver terminal 2 and accepting a reply mail to the alias mail from the sender terminal 2.
- the alias mail relay server 10 replaces the destination and source of the alias mail that has also received the sender terminal 1 (sending mail server 3), and transfers the alias mail to the receiver terminal 2 (sending mail server 4).
- the remailer 20 replaces the destination and sender of the reply mail received from the receiver terminal 2 (caller mail server 4) and sends the reply mail to the caller terminal 1 (caller mail server 3).
- the server to transfer.
- the alias mail relay server 10 includes a user address restoring unit 11, a reply address conversion unit 12, and a mail transfer unit 13, as shown in FIG.
- the user address restoring section 11 corresponds to the called party address restoring means in claim 2
- the reply address converting section 12 corresponds to the reply destination address generating means in claim 2
- the mail transfer section 13 corresponds to claim 2 in claim 2.
- the user address restoring unit 11 stores the alias address X, which is the destination of the alias mail.
- the reply address converter 12 sends the sender address S, which is the sender of the alias mail, and the This is a means for generating a reply destination address Y (S, C) from the alias address generation argument c restored by the user address restoring unit 11.
- the reply destination address generation processing will be described later in detail (see FIG. 5).
- the mail transfer unit 13 is a means for replacing the destination and source of the alias mail and transferring the mail to the called party. More specifically, the destination of the alias mail is replaced with the called party address R restored by the user address restoring unit 11, and the sender of the alias mail is replaced with the reply destination address Y generated by the reply address conversion unit 12. Replace with (S, C) and forward.
- the remailer 20 includes a reply address restoring unit 21, a user address converting unit 22, and a mail transferring unit 23.
- the reply address restoring unit 21 corresponds to the sender address restoring unit in claim 1
- the user address converting unit 22 corresponds to the alias address regenerating unit in claim 2
- the mail transfer unit 23 corresponds to claim 2 in claim 2.
- the reply address restoring unit 21 is means for restoring the sender address S and the alias address generation argument C from the reply destination address Y (S, C) which is the destination of the reply mail.
- the algorithm of the restoration process by the reply address restoration unit 21 and the algorithm of the reply destination address generation process by the reply address conversion unit 12 have a pair of forward conversion and reverse conversion. .
- the reply address restoration process will be described later in detail (see FIG. 6).
- the user address conversion unit 22 reproduces the alias address X (R, C) as well as the destination address R which is the source of the reply mail and the alias address generation argument C restored by the return address restoration unit 21. It is a means to achieve.
- the algorithm of the alias address regenerating process by the user address translating unit 22 and the algorithm of the reconstructing process by the user address reconstructing unit 11 described above have a pair of forward conversion and reverse conversion. .
- the details of the alias address regenerating process are the same as the alias address generating process described later with reference to FIG.
- the mail transfer unit 23 is a means for replacing the destination and the source of the reply mail and transferring the reply mail to the sender. Specifically, the destination of the reply mail is restored by the reply address restoring unit 21. In addition to replacing the original sender address s, the sender of the reply mail is replaced with the alias address X (R, C) regenerated by the user address converter 22 and transferred.
- FIG. 2 is a sequence diagram illustrating a processing procedure according to the first embodiment.
- the called party terminal 2 receives the called party called party address R and the alias address generation argument C, and generates an alias address X (R, C) (step S201).
- the receiver receiving the alias address X (R, C) operates the receiver terminal 2 or another terminal (not shown) to contact the caller, and the alias address X (R, C). ) To the caller.
- This alias address generation process will be described later in detail (see Fig. 3).
- the alias mail relay server 10 receives the alias mail from the sender terminal 1 via the originating mail server 3 (step S202), the alias address X (R , C) The callee address R and the alias address generation argument C are restored (step S203).
- the user address restoration process will be described later in detail (see FIG. 4).
- the alias mail relay server 10 generates a reply-to address Y (S, C) from the sender address S that is the sender of the alias mail and the alias address generation argument C restored in step S203 described above. (Step S204).
- the reply destination address generation processing will be described later in detail (see FIG. 5).
- the alias mail relay server 10 replaces the destination of the alias mail with the recipient address R restored in step S203, and sets the source of the alias mail in the reply generated in step S204.
- the destination mail is replaced with the destination address Y (S, C), and this alias mail is transferred to the destination mail server 4 (step S205).
- the receiving mail server 4 that has received the alias mail from the alias mail relay server 10 temporarily stores the alias mail and receives the arrival mail confirmation request from the called terminal 2 (step S206).
- the alias mail is temporarily stored and transmitted to the receiver terminal 2 (step S207).
- the remailer 20 receives a reply mail to the alias mail from the receiver terminal 2 via the called mail server (step S208)
- the caller address S and the alias address generation argument C are restored (step S209).
- the return address restoration process will be described later in detail (see FIG. 6).
- remailer 20 regenerates alias address X (R, C) from destination address R, which is the source of the reply mail, and alias address generation argument C restored in step S209 described above (step S209).
- step S210 The details of the alias address regenerating process are the same as in step S201 described above.
- the remailer 20 replaces the destination of the reply mail with the sender address S restored in the above step S209, and changes the sender of the reply mail to the alias address X ( R, C) and forward this reply mail to the originating mail server 3 (step S211).
- the sending mail server 3 receiving the reply mail from the remailer 20 temporarily stores the reply mail, and upon receiving the arrival mail confirmation request from the sender terminal 1 (step S212), temporarily stores the reply mail.
- the reply mail being sent is transmitted to the sender terminal 1 (step S213). If the sender sends a further reply mail to the reply mail, the process is repeated from the above step S202.
- FIG. 3 is a flowchart illustrating the flow of the alias address generation process according to the first embodiment.
- R, C) (
- step S303 suzuki.FromTanaka@alias.isp-A.ne.jp) is generated (step S303).
- the called terminal 2 receives the alias address X (R, C) (
- alias address generation server is provided on the network.
- the alias address generation server may be accessed from the called party terminal 2 to receive the alias address! / ,.
- step S20 in FIG. 2 the user address restoration processing according to the first embodiment (step S20 in FIG. 2)
- FIG. 4 is a flowchart illustrating a flow of a user address restoring process according to the first embodiment.
- the user address restoring unit 11 of the alias mail relay server 10 transmits the alias address X (R, C) (
- the alias address is generated by dropping the domain name of the called party address R.
- the alias address is not necessarily limited to this. If an alias address is generated as it is, it is restored with the domain name included, so it is not necessary to add the domain name again.
- FIG. 5 is a flowchart illustrating the flow of the reply destination address generation process according to the first embodiment.
- step S502 FromTanaka / Tanaka / mail.isp—B.ne.jp) (step S502).
- the reply address conversion unit 12 outputs the character string y (
- Isp— B.ne.jp Fr omTanaka / Tanaka / mail.
- Isp— B.ne.jp) is set to 5 minutes, and the reply address is “@r email.
- the reply address conversion unit 12 outputs the reply destination address Y (S, C).
- FIG. 6 is a flowchart illustrating the flow of the reply address restoring process according to the first embodiment.
- the reply address restoring unit 21 sets the character string y (
- the alias address generation argument C is included in the reply destination address Y (S, C), so that it is not necessary to perform a special process on the called terminal 2 and a normal mail reply process If the recipient simply executes, the alias address generation argument C required to regenerate the alias address can be included in the reply mail.
- an alias address generated using control information C (information indicating a transfer condition to be satisfied by an alias mail transferred to the called party) as an alias address generation argument C is set.
- control information C information indicating a transfer condition to be satisfied by an alias mail transferred to the called party
- transfer permission / inhibition is determined based on the control information C and the control information C is automatically updated.
- FIG. 7 is a system configuration diagram illustrating an overall configuration of a mail delivery system according to the second embodiment.
- the mail delivery system includes a sender terminal 1, a receiver terminal 2, a sender mail server 3, a receiver mail server 4, an alias mail relay server 30, and a remailer.
- 40 is communicably connected via a network (communication network formed by source IP network 5, destination IP network 6, Internet 7, LAN 8, router R, firewall FW, etc.). Is done.
- the alias mail relay server 10 corresponds to the alias mail processing means of claim 1 and the remailer 20 corresponds to the reply mail processing means of claim 1 and the like.
- the sender terminal 1, the receiver terminal 2, the sending mail server 3, and the receiving mail server are the same as those described in the first embodiment with the same reference numerals. It is. However, the process of generating an alias address by the called terminal 2 is different from that of the first embodiment, which will be described later in detail (see FIGS. 9 and 10).
- the alias mail relay server 30 and the remailer 40 are also basically the same as the alias mail relay server 30 and the remailer 40 described in the first embodiment.
- the configuration of 30 and remailer 40 will be described in detail.
- the alias mail relay server 30 includes a user address restoring unit 31, a reply address conversion unit 32, a mail transfer unit 33, a common key storage unit 34, and a transferability determination unit 35. And a control information updating unit 36.
- the reply address conversion unit 32 corresponds to the reply destination address generation unit in claims 2 and 4
- the mail transfer unit 33 corresponds to the alias mail transfer unit in claims 2 and 4
- the transferability determination unit 35 Corresponds to claim 3
- the control information updating unit 36 corresponds to the transfer condition updating means in claim 4.
- the user address restoring unit 31, the reply address converting unit 32, and the mail forwarding unit 33 are the user address restoring unit 11, the reply address converting unit 12, and the mail forwarding described in the first embodiment.
- the reply address conversion section 32 and the mail transfer section 33 execute processing only when the transfer permission / non-permission determination section 35 described later determines that transfer is possible.
- user address restoring section 11 judges the validity of alias address X (R, C) and outputs validity / invalidity of alias address X (R, C). Processing is also performed. The process of restoring the user address will be described later in detail (see FIG. 11).
- the common key storage unit 34 is means for storing a common key similar to the common key used for generating an alias address by the receiver terminal 2. Specifically, this common key is used when the user address restoring unit 11 generates a comparison code to be compared with the falsification prevention code of the alias address generation argument C (control information C).
- the transfer enable / disable judging unit 35 determines whether or not the control information C (information indicating the transfer condition to be satisfied by the alias mail transferred to the called party) restored by the user address restoration unit 31 is satisfied by the alias mail. It is means for determining. The process of determining whether transfer is possible will be described later in detail (see FIG. 12).
- the control information updating unit 36 is means for updating the control information C (that is, the transfer condition) restored by the user address restoring unit 31 and generating new control information C1. Then, the reply address conversion unit 32 generates a reply destination address including the control information C1 newly generated by the control information update unit 36 instead of the control information C restored by the user address restoration unit 31. I do. The process of updating the control information will be described later in detail (see FIG. 13).
- the remailer 40 includes a reply address restoration unit 41, a user address conversion unit 42, a mail transfer unit 43, a common key storage unit 44, and a control information update unit 45.
- the user address conversion unit 42 corresponds to the alias address regenerating means in claims 2 and 5.
- the control information updating section 45 corresponds to the transfer condition updating means in claim 5.
- the reply address restoring unit 41, the user address converting unit 42, and the mail forwarding unit 43 are the reply address restoring unit 21, the user address converting unit 22, and the mail forwarding described in the first embodiment. It is basically the same as Part 23.
- the common key storage unit 44 is means for storing a common key similar to the common key used for generating an alias address by the called terminal 2, similarly to the common key storage unit 34 of the alias mail relay server 30. Specifically, this common key is used when the user address conversion unit 42 generates a falsification prevention code of the alias address generation argument C (control information C).
- the control information updating unit 45 includes the control information C1 restored by the reply address restoring unit 41.
- FIG. 8 is a sequence diagram illustrating a processing procedure according to the second embodiment.
- the called party terminal 2 sends the called party address R and the control information C (more specifically, the transfer conditions such as the sender address designation, the remaining count designation, and the expiration date designation). ) Is received to generate an alias address X (R, C) (step S801). As a result, the receiver receiving the alias address X (R, C) operates the receiver terminal 2 or another terminal (not shown) to contact the caller, and the alias address X (R, C). Notify C) to the caller. The process of generating the alias address will be described later in detail (see FIGS. 9 and 10).
- the alias mail relay server 30 receives the alias mail from the sender terminal 1 via the originating mail server 3 (step S802), the alias address X (R , C) also restores the called party address R and the control information C (step S803).
- the validity of the alias address X (R, C) is determined.
- the validity or invalidity of the alias address X (R, C) is output, and if invalidated, the forwarding of the aliased mail is rejected.
- the user address restoration process will be described later in detail (see FIG. 11).
- the alias mail relay server 30 determines whether the alias mail satisfies the control information C (transfer condition) restored in step S803 described above (step S805).
- the transfer of the alias mail is rejected.
- the transfer permission / inhibition determination process will be described later in detail (see FIG. 12).
- step S805 When it is determined in step S805 that transfer is possible, the alias mail relay server 30 updates the control information C (transfer condition) restored in step S803 to generate new control information C1. (Step S805). The process of updating the control information will be described later in detail (see FIG. 13).
- the alias mail relay server 30 generates a reply destination address Y (S, C1) from the sender address S that is the sender of the alias mail and the control information C1 newly generated in step S805 described above. (Step S806).
- the details of the reply destination address generation processing are basically the same as the processing described with reference to FIG. 5 in the first embodiment.
- the alias mail relay server 30 replaces the destination of the alias mail with the called party address R restored in step S803, and sets the source of the alias mail in the reply generated in step S806. Replace with the destination address Y (S, C1), and forward this aliased mail to the destination mail server 4 (step S807).
- the receiving mail server 4 receiving the alias mail from the alias mail relay server 30 temporarily stores the alias mail and receives the arrival mail confirmation request from the called terminal 2 (step S808).
- the alias mail is temporarily stored and sent to the receiver terminal 2 (step S809).
- step S810 when the remailer 40 receives the reply mail to the alias mail from the receiver terminal 2 via the called mail server (step S810), the remail destination address Y (S , C1) The force also restores the sender address S and the control information C1 (step S811).
- the details of the reply address restoring process are shown in FIG. 6 in the first embodiment. This is basically the same as the processing described above.
- the remailer 40 updates the control information C1 (transfer condition) restored in step S811 to generate new control information C2 (step S812).
- the process of updating the control information will be described later in detail (see FIG. 14).
- remailer 40 regenerates alias address X (R, C2) from destination address R, which is the source of the reply mail, and control information C2 newly generated in step S812 (step S812). S813).
- the details of the alias address regenerating process are basically the same as step S801 described above.
- the remailer 40 replaces the destination of the reply mail with the sender address S restored in the above step S811 and changes the sender of the reply mail to the alias address X ( R, C2) and forward this reply mail to the originating mail server 3 (step S814).
- the sending mail server 3 receiving the reply mail from the remailer 40 temporarily stores the reply mail, and upon receiving the arrival mail confirmation request from the sender terminal 1 (step S815), temporarily stores the reply mail.
- the reply mail being sent is transmitted to the sender terminal 1 (step S816). If the sender sends a further reply mail to the reply mail, the process is repeated from the above step S802.
- FIG. 9 is a flowchart illustrating the flow of the alias address generation processing according to the second embodiment.
- FIG. 10 is a diagram illustrating a configuration example of control information.
- the control information C is generated by combining transfer conditions (transfer conditions such as a caller address designation, a remaining count designation, and an expiration date designation) received from a callee via the operation unit.
- “sender address designation” is a condition for designating a sender, and more specifically, “sender address”. Combining the transfer condition identifier “S” of “Specify recipient address” and the value (for example, “acdg”) obtained by BASE32 encoding the lower 20 bits of the hash value of the received sender address S Is done.
- the "remaining number designation” is a condition for designating the number of transfers. Specifically, the transfer condition identifier "N" of "remaining number designation” and a value that is decremented for each transfer (For example, “21”).
- expiration date specification is a condition for specifying the expiration date of the alias address. Specifically, the transfer condition identifier “E” of “expiration date specification” and the date of the expiration date are specified. The value (for example, “030830”) is combined with the value (for example, r + 2Wj) that indicates the update period unit of this expiration date.
- step S902 suzuki.N12.E030830 + 2W) (step S902).
- suzuki.N12.E030830 + 2W.edqs is generated (step S903).
- the called party terminal 2 uses the above character string y (suzuki.N12.E030830 + 2W.edqs) as the user name part and "@ alias.isp-A.ne.jp" as the domain name part.
- the called terminal 2 receives the alias address X (R, C) (
- the domain name of the called party address R is also the alias address.
- the alias address may be issued by the alias address generation server on the network.
- FIG. 11 is a flowchart illustrating the flow of a user address restoring process according to the second embodiment.
- the user address restoring unit 31 of the alias mail relay server 30 sends the alias address X (R, C) (
- FIG. 12 is a flowchart illustrating the flow of the transfer permission / inhibition determination process according to the second embodiment.
- control information C transfer conditions such as sender address designation, remaining count designation, and expiration date designation
- the control information C contains the condition of “remaining number of times specified” (transfer condition identifier “N”)! (Step S1201), and if this is included! / (Step S1201 affirmative), the number following the transfer condition identifier "N" is set to "0 (zero)". Is determined (step S1202).
- the transfer enable / disable determination unit 35 checks whether the control information C includes the condition of "expiration date designation" (transfer condition identifier "E") (step S1203). In this case (Yes at step S1203), it is further determined whether the expiration date indicated by the six-digit number following the transfer condition identifier "E" is later than the current date and time (step S1204). .
- the transferability determination unit 35 determines the determination result. The process ends as "transfer not possible” (step S1208). Conversely, if the expiration date indicated by the six-digit number following the transfer condition identifier "E” is later than the current date and time (Yes at step S1204), the control information C contains "expiration date designation". If the condition (the transfer condition identifier “E”) is not included (No at Step S1203), the following judgment is continuously performed.
- transfer permission / inhibition determination section 35 checks whether or not control information C includes a condition of “caller address designation” (transfer condition identifier “S”) (step S 1205). If it is included (Yes at step S1205), the value obtained by BASE32 encoding the lower 20 bits of the hash value of the sender address S is added to the four characters following the transfer condition identifier "S". It is determined whether they match (step S1206).
- the transfer enable / disable judging unit 35 sets the judgment result to “Transfer impossible” and ends the process (Step S1206). S1208).
- the control information includes the “sender address designation” condition (transfer condition identifier “S”). If not (No at Step S1205), the process ends with the determination result as “Transferable” (Step S1207). As a result, the transfer enable / disable judging unit 35 outputs a result of the judgment (“transfer is possible” or “transfer is impossible”).
- FIG. 13 is a flowchart illustrating the flow of the control information update process according to the second embodiment.
- control information updating unit 36 of the alias mail relay server 30 receives the control information C (transfer conditions such as the designation of the sender address, the number of remaining calls, and the expiration date), First, the control information C contains the condition of “remaining number of times specified” (transfer condition identifier “N”)! The power is checked (step S1301).
- control information updating unit 36 sets the transfer condition identifier to The number string following “N” is read as an integer value and subtracted by 1, the subtracted result is used as a new condition description, and the result obtained by replacing the condition description specifying the remaining number of times is used as the updated control information C1 (step S 1302).
- control information update section 36 The updated control information C is used as it is as the updated control information C1 (step S1302). As a result, the control information updating unit 36 outputs the updated control information C1.
- FIG. 14 is a flowchart illustrating the flow of the control information update process according to the second embodiment.
- control information updating unit 45 of the remailer 40 receives the control information C1 (transfer conditions such as the designation of the sender address, the number of remaining calls, and the expiration date), first, It is checked whether or not the control information C1 includes a condition of “expiration date designation” (transfer condition identifier “E”) (step S1401).
- control information update unit 45 sets the “+” The date and time added to the current date and time (for example, 2W: 2 weeks) indicated by the character string of this character string as a new expiration date, and the 6-digit number following the transfer condition identifier "E" is replaced. (Step S1402).
- control information update unit 45 When the control information does not include the condition of "expiration date designation" (transfer condition identifier "E") (No at Step S1401), the control information update unit 45 The input control information C1 is used as it is as the updated control information C2 (step S1402). As a result, the control information updating unit 45 outputs the updated control information C2.
- control information update process 2 described above is described as being executed by the remailer 40, it is not always necessary to execute the control information update process by the remailer 40. Alternatively, it may be executed together with the control information update process 1 described above.
- the second embodiment it is possible to determine whether or not forwarding is possible according to the restored control information C, so that it is possible to eliminate unsolicited mail to the called party.
- a database a DB that specifies transfer conditions
- the second embodiment by updating the transfer conditions according to the number of transfers and the transfer time (or the number of replies and the reply time), it is not necessary to generate the alias address many times. In other words, it is possible to eliminate spam by using the alias address once created in the medium to long term.
- Embodiments 1 and 2 described above a case has been described where only the called party is issued an alias address.
- this embodiment is not necessarily limited to this. The same applies to a case where an address has been issued. Further, it is possible to determine whether transfer is possible for each of the called party and the calling party.
- both the caller and the callee are alias address users, and both the caller and the callee include the transfer condition (context) in the alias address. Is described in comparison with the second embodiment.
- FIG. 15 is a diagram for explaining the outline of the second embodiment
- FIG. 16 is a diagram for explaining the outline of the third embodiment.
- the receiver R who is an alias address user transmits his / her own alias address “f (R, C_R) @X” to a caller who is not an alias address user. Notify S.
- the sender S sends an alias mail having the destination address "f (R, C_R) @X" and the sender address S to the alias mail relay server 30.
- the alias mail relay server 30 determines whether or not the alias mail can be forwarded based on “C—R” included in the alias address, replaces the destination with the called party address R, and sets the source as the reply destination address “ g (S, C_R) @Y ”and forward to called party R.
- the receiver R replies to the alias mail, and the destination is the reply destination address, C—R) @Y ”, and the sender is the receiver address R.
- the remailer 40 replaces the destination with the sender address S, replaces the source with the alias address “f (R, C_R) @X”, and sends a reply mail. Forward to s.
- the receiver R which is the alias address user, writes its own alias address "f (R, C-R) @X". , And notifies the sender S, who is also an alias address user. Subsequently, the caller S obtains a reply destination from the alias address “f (R, C_R) @X” of the callee scale and the argument “C—S” for generating the alias address of the caller S (the caller S). Generate address "g (f (R, C_R) @X, C—S) @Y"
- the sender S remails the alias mail whose destination is the reply destination address "g (f (R, C_R) @X, C_S) @Y" and whose sender is the sender address S.
- the remailer 60 replaces the destination with the alias address “f (R, C_R) @X” of the called party R and changes the source to the alias address “f (S, C_S) @X” of the calling party S. , And forward the alias mail to the alias mail relay server 50.
- the alias mail relay server 50 determines whether or not to forward the alias mail based on “C—R” included in the alias address of the called party R, and replaces the destination with the called party address R. Replace the caller with the reply-to address “g (f (S, C_S) @X, C—R) @Y” and forward to callee R.
- the called party R replies to the alias mail, and the destination is the reply destination address "g (f (S, C_S) @X, C—R) @Y". Then, the reply mail having the sender address R is transmitted to the remailer 60. Then, the remailer 60 replaces the destination with the alias address “f (S, C_S) @X” of the sender S, and replaces the source with the alias address “f (R, C—R) @X of the receiver R. And forward the reply mail to the alias mail relay server 50.
- the alias mail relay server 50 determines whether or not the alias mail can be forwarded based on “C—S” included in the alias address of the sender S, replaces the destination with the sender address S, and changes the sender address. Is replaced with the reply-to address “g (f (R, C_R) @X, C_S) @Y”, and the reply mail is forwarded to sender S.
- the mail with the real address of V or any of the real addresses is not
- the management load on the database is reduced, the replacement process is speeded up, and multiple alias addresses are transferred. It is possible to realize application to a user having the information.
- the left remailer 60 corresponds to the first mail processing means of claim 6, and the left alias mail relay server 50 corresponds to the second mail processing means of claims 6 and 7.
- the remailer 60 on the right side corresponds to the third mail processing means in claim 6, and the alias mail relay server 50 on the right side corresponds to the fourth mail processing means in claims 6 and 7.
- the present invention is not limited to this.
- instant message communication or IP telephone The present invention can be similarly applied to the case of performing communication using the same address as the above-mentioned e-mail, such as communication.
- the present invention is not limited to this.
- the present invention can be similarly applied to the case where the alias address generation argument C is embedded in the alias mail so that the alias address generation argument C can be restored so that it can be restored. be able to.
- each component of each illustrated device is a functional concept and does not necessarily need to be physically configured as illustrated.
- the specific form of distribution and integration of each device is not limited to that shown in the figure.
- all or a part of the mail relay server and the remailer function may be realized by the same device, and various loads or loads may be applied. Depending on the usage, etc., it can be functionally or physically distributed and integrated in arbitrary units.
- each processing function performed by each device can be realized by a CPU that is fully or arbitrarily partially and a program that is analyzed and executed by the CPU, or can be realized as hardware by wired logic.
- each device also known as a mail relay server or a reminder
- each function of each device is described in the personal computer workstation. It can also be realized by causing a computer to execute a program. That is, the various processing procedures described in the present embodiment can be realized by executing a prepared program on a computer.
- These programs can be distributed via networks such as the Internet.
- these programs are recorded on a computer-readable recording medium such as a hard disk, flexible disk (FD), CD-ROM, MO, DVD, etc., and executed by reading the recording medium power by a computer. You can also.
- a CD-ROM storing the program for the alias mail relay server 10 and the program for the remailer 20 as shown in the first embodiment (a separate CD-ROM may be used for each device). It may be distributed so that each computer can read and execute the program stored on this CD-ROM.
- the mail delivery system, the mail delivery method, and the mail delivery program according to the present invention transfer the alias mail by replacing the destination of the alias mail with the recipient address, and alias the sender of the return mail by the alias.
- This is useful when transferring by replacing with an address.
- the management load on the database is reduced, the replacement processing is speeded up, It is suitable for realizing application to a user having a number of alias addresses.
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Abstract
Description
Claims
Priority Applications (4)
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CN2004800288723A CN1864377B (zh) | 2003-10-17 | 2004-10-14 | 邮件投递系统、邮件投递方法 |
JP2005514764A JP4094638B2 (ja) | 2003-10-17 | 2004-10-14 | メール配送システム、メール配送方法およびメール配送プログラム |
EP04792358A EP1675327B1 (en) | 2003-10-17 | 2004-10-14 | Mail distribution system, mail distribution method, and mail distribution program |
US10/574,589 US7558827B2 (en) | 2003-10-17 | 2004-10-14 | Mail distribution system, mail distribution method, and mail distribution program |
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JP2003358427 | 2003-10-17 | ||
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EP (1) | EP1675327B1 (ja) |
JP (1) | JP4094638B2 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
EP1675327A1 (en) | 2006-06-28 |
JPWO2005039130A1 (ja) | 2007-11-22 |
EP1675327B1 (en) | 2013-01-02 |
KR100829471B1 (ko) | 2008-05-19 |
CN1864377B (zh) | 2010-09-01 |
KR20060057018A (ko) | 2006-05-25 |
US7558827B2 (en) | 2009-07-07 |
US20070011245A1 (en) | 2007-01-11 |
JP4094638B2 (ja) | 2008-06-04 |
EP1675327A4 (en) | 2009-03-18 |
CN1864377A (zh) | 2006-11-15 |
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