DATA TRANSMISSION AND RECEPTION SYSTEM WITH ACCURATE TIME INFORMATION

• US 20090106435A1
• Filed: 01/07/2009
• Published: 04/23/2009
• Est. Priority Date: 10/05/2000
• Status: Active Grant

• Current Assignee: Kyndryl Incorporated
• Original Assignee: International Business Machines Corporation
• Inventors: Katoh, Yohichi, Sumito, Yohichiro
• Granted Patent: US 9,667,444 B2
• Time in Patent Office: Days
• US Class Current: 709/229
• CPC Class Codes: H04L 51/00 User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
• CPC Class Codes: H04L 51/08 Annexed information, e.g. attachments
• CPC Class Codes: H04L 51/216 Handling conversation history, e.g. grouping of messages in sessions or threads
• CPC Class Codes: H04L 51/234 for tracking messages
• CPC Class Codes: H04L 51/56 Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]

Abstract

A data transmission and reception system for sending and receiving data between a sender and a receiver via a network. The system includes an authorizing server maintaining time information and authorizing a sender server after subjecting the sender server to examination and after the sender server is licensed by the authorizing server to issue electronic postmarks. The sender server is connected to a network to send data via the network, wherein the sender server is authorized by the authorizing server to issue the electronic postmarks. A receiver server is connected to the network to receive the data from the sender server via the network. The sender server issues the time information and attaches the time information to the data to be sent from the sender server.

Claims

1. A data transmission and reception system for sending and receiving data between a sender and a receiver via a network, comprising:

an authorizing server maintaining time information and authorizing a sender server after subjecting the sender server to examination and after the sender server is licensed by the authorizing server to issue electronic postmarks;

the sender server being connected to a network to send data via the network, wherein the sender server is authorized by the authorizing server to issue the electronic postmarks; and

a receiver server connected to the network to receive the data from the sender server via the network;

wherein the sender server issues the time information and attaches the time information to the data to be sent from the sender server.

2. The data transmission and reception system according to claim 1, wherein the receiver server sorts the data based on the attached time information.

3. The data transmission and reception system according to claim 1, wherein the time information is a time at which the sender server sends the data to the receiver server.

4. The data transmission and reception system according to claim 1, wherein the sender server sends the data and the attached time information after encrypting at least the attached time information.

5. The data transmission and reception system according to claim 4, wherein the sender server encrypts at least the attached time information with a private key when sending the data with the attached time information;

and, the receiver server decrypts the attached time information with a public key.

6. The data transmission and reception system according to claim 1, wherein the receiver server sorts the data based on the attached time information.

7. The data transmission and reception system according to claim 1, wherein the receiver server sorts the received data based on the time information embedded in electronic postmarks and reorders the data based on the attached time information.

8. The data transmission and reception system according to claim 1, wherein after the receiver server accepts the received data with the attached time information, the sender server, a sender'"'"'s PC, or a licensed Internet Service Provider'"'"'s (ISP) server is automatically informed that the receiver server has accepted the received data and then classifies or reorders the received data based on the attached time information, whereby a time that the received data is accepted is before a time that the received data is classified or reordered.

9. An electronic mail distribution system for receiving electronic mail data sent from a sender system and for sending the electronic mail data to a receiver system over a network, comprising:

an arrangement for maintaining time information having a certain accuracy;

the arrangement for maintaining the time information authorizing and monitoring a sender server to ensure, after subjecting the sender server to examination, that the sender server issues accurate time stamps;

the sender server comprising time stamp attaching means for attaching a time stamp including the time information maintained in the arrangement for maintaining the time information to electronic mail data received from a sender system; and

data transmitting means for sending the electronic mail data with the time stamp to a receiver system,

wherein the receiver system sorts the received electronic mail data based on the time information embedded in the received electronic mail data and reorders the received electronic mail data based on the attached time information.

10. A method of using the data transmission and reception system according to claim 9, wherein the method comprises:

maintaining time information having a certain accuracy;

authorizing and monitoring a sender server to ensure, after subjecting the sender server to examination, that the sender server issues accurate time stamps;

attaching a time stamp; and

sending electronic mail data with the time stamp to a receiver system.

11. A data transmission method for sending out data received from a user'"'"'s terminal to a network, comprising the steps of:

maintaining accurate time information with an authorizing office server;

authorizing a sender server to issue the accurate time information after the sender server has been authorized by the authorizing office server;

issuing, with the sender server, an electronic postmark including the accurate time information after the authorizing office server sends an electronic postmark issue program to the sender server;

attaching the electronic postmark to data received from a user'"'"'s terminal;

sending out the data with the electronic postmark to a network, and

further comprising a receiver system that sorts received electronic mail data based on time information embedded in the received data and reorders the received data based on attached time information.

12. A method of using the data transmission method for sending out data received from a user'"'"'s terminal to a network according to claim 11, wherein the method comprises:

authorizing a sender server to issue the accurate time information after the sender server has been authorized by the authorizing office server;

issuing, with the sender server, an electronic postmark including the accurate time information after the authorizing office server sends an electronic postmark issue program to the sender server;

attaching the electronic postmark to data received from a user'"'"'s terminal; and

sending out the data with the electronic postmark to a network.