Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer handshaking
Reexamination Certificate
1998-03-23
2001-01-16
Maung, Zarni (Department: 2756)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Computer-to-computer handshaking
C709S207000, C709S229000
Reexamination Certificate
active
06175873
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is related to Japanese application No. Hei 9(1997)-072520, filed on Mar. 26, 1997, whose priority is claimed under 35 USC §119, the disclosure of which is incorporated by reference in its entirety.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for acquiring communication information between communication devices which are capable of transmitting and receiving electronic mail or facsimiles information.
2. Description of the Prior Art
Conventional communication devices have a function, for example, such that, if a sender transmits information to a desired receiver and then a trouble of a communication device arises at a receiver side, such trouble is generally informed to the sender for urging the sender to transmit the information again. Moreover, these devices have a function of transmitting the information to the receiver regardless of the receiver's presence or absence. However, these devices do not possess a function of informing the sender whether the transmitted information has correctly reached the desired receiver or not. Therefore, the sender needs to call the receiver on another occasion in order to confirm whether the receiver has received the transmitted information.
The Japanese Unexamined Patent Publication No. Hei 2(1990)-185158 proposes a communication device for solving this problem, which is capable of informing the corresponding sender automatically about the fact that the information transmitted by the sender has been received at the receiver side.
By the communication device in the Japanese Unexamined Patent Publication No. Hei 2(1990)-185158, the fact that the information transmitted by the sender has been received at the receiver side is positively informed to the sender. However, there is a problem such that the report is given to the sender telling that the transmitted information has been confirmed on a communication device at the receiver side, even when the receiver is not present and cannot check the transmitted information.
Especially, in the case that such communication devices are applied to a communication system which transmits or receives electronic mail between a plurality of communication devices via a host computer on a network, there is a problem such that the sender has to reconfirm whether the receiver has received the transmitted information because it is not clear when the receiver checks the transmitted information (e.g., electronic mail) unless the sender receives a return message from the receiver.
SUMMARY OF THE INVENTION
The present invention has been made with a view to overcoming the above problems. It is therefore an object of the present invention to provide a method for acquiring communication information, for example, in the case that the communication information is transmitted from a communication terminal of one user to a communication terminal of another user via a host computer on a network. By employing the method, the sender does not have to reconfirm whether the receiver has received the transmitted information, because the preliminarily registered user information of the receiver side is reported to the sender's communication terminal and, on the basis of the user information of the receiver side, the sender can find whether the receiver will really check the transmitted information or not.
Thus, the present invention provides a method for acquiring communication information in a communication system between a plurality of user communication terminals via a host computer on a network, the method comprising registering, for each user communication terminal, beforehand in the host computer a user information including a communication confirmation schedule, whereby the host computer transmits a user information of a second user communication terminal to a first user communication terminal when the host computer detects a communication connection from the first user communication terminal to the second user communication terminal.
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Isoe Toshio
Yamane Kenichi
Cardone Jason D.
Maung Zarni
Sharp Kabushiki Kaisha
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