Electrical computers and digital processing systems: multicomput – Computer-to-computer data modifying – Compressing/decompressing
Reexamination Certificate
1998-12-17
2001-05-08
Donaghue, Larry D. (Department: 2154)
Electrical computers and digital processing systems: multicomput
Computer-to-computer data modifying
Compressing/decompressing
C709S237000
Reexamination Certificate
active
06230208
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a data communication apparatus and method for transmitting/receiving data and, more particularly, to a data communication apparatus and method for performing data communications via a private network such as a local area network (LAN) or the like, and a public network such as a telephone line or the like.
Conventionally, for example, a facsimile apparatus having two interfaces, one of which is connected to a LAN and the other is connected to a public network such as a PSTN (Public Switched Telephone Network), an ISDN (Integrated Services Digital Network), or the like, is known. The facsimile apparatus performs facsimile transmission via the public network on the basis of a transmission request from a terminal on the LAN, and notifies the terminal on the LAN of data reception or distributes received data when it receives data via the public network.
However, in the conventional facsimile apparatus, the reception result information of which a transmitting facsimile apparatus is notified via the public network is information only associated with the facsimile apparatuses which have communicated with each other. That is, a reception station cannot be notified via the public network of information associated with the terminal on the LAN, e.g., information as to whether or not the apparatus can notify the terminal on the LAN of data reception or whether or not the apparatus can distribute data to the terminal.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a data communication apparatus and method, which can solve the above-mentioned problems.
It is another object of the present invention to provide a data communication apparatus and method, which can notify the transmitting side of information associated with reception data when the transmitting side requests such information.
It is still another object of the present invention to provide a data communication method and apparatus which can disconnect a line after data reception, and can connect the line again to be able to notify the states of reception data and a terminal on the LAN.
It is still another object of the present invention to provide a data communication apparatus and method, which can select whether the state of reception data is to be notified in response to a call originated by the data transmitting or receiving side.
Other features and advantages of the present invention will be apparent from the following description taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof.
REFERENCES:
patent: 4914619 (1990-04-01), Harris et al.
patent: 5123089 (1992-06-01), Beilinski et al.
patent: 5432618 (1995-07-01), Monnot et al.
patent: 5513126 (1996-04-01), Harkin et al.
patent: 5555307 (1996-09-01), Corre et al.
patent: 5566230 (1996-10-01), Cairo
patent: 5666489 (1997-09-01), Fite, Jr. et al.
Omori Seiji
Sugawara Naoki
Canon Kabushiki Kaisha
Donaghue Larry D.
Fitzpatrick ,Cella, Harper & Scinto
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