Pulse or digital communications – Transceivers – Transmission interface between two stations or terminals
Reexamination Certificate
1999-07-21
2001-09-11
Pham, Chi (Department: 2631)
Pulse or digital communications
Transceivers
Transmission interface between two stations or terminals
C375S257000, C714S712000
Reexamination Certificate
active
06289043
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a data communication device and a storage medium storing therein a program which are suitable for the sake of communication and so forth of the data among a high speed SHELF and a low speed SHELF.
DESCRIPTION OF THE PRIOR ART
Formerly, the data communication device and the storage medium storing therein a program are not provided with a contrivance for detecting connection error regarding a cable connection between a high speed SHELF and a low speed SHELF. For that reason, when there occurs the error connection, the conventional data communication apparatus judges the error from the condition of the data undergoing error after implementing the practical communication of the data.
However, it is difficult to judge whether the error occurs caused by error connection of the cable or the error occurs caused by an another main cause from the error condition of the data as above described conventional example, thus there is the problem that it is incapable of being detected the error connection of the cable speedily and surely.
SUMMARY OF THE INVENTION
In view of the foregoing it is an object of the present invention, in order to overcome the above mentioned problem, to provide a data communication apparatus and a storage medium storing therein a program which enable an error connection of a cable between communication apparatus such as a high speed SHELF and a low speed SHELF to be detected speedily and surely.
According to a first aspect of the present invention, in order to achieve the above-mentioned object, there is provided a data communication apparatus in which a first communication device and a second communication device are connected by means of a prescribed connection means provided with a plurality of cables, which comprises a first collation information transmission means provided for the first communication device for transmitting a plurality of first collation information to respective prescribed connection means, a second collation means provided for the respective second communication devices for collating own peculiar collation information while receiving the first collation information, a second collation information transmission means provided for the respective second communication devices for transmitting a second collation information to the prescribed connection means, and a first collation means provided for the first communication device for collating own collation information while receiving the second collation information.
According to a second aspect of the present invention, in the first aspect, there is provided a data communication apparatus, which further comprises a display means for displaying collation result according to the first and the second collation means.
According to a third aspect of the present invention, in the first aspect, there is provided a data communication apparatus, wherein the first communication device is a high speed SHELF which processes high speed signal, and the second communication device is a low speed SHELF which processes low speed signal.
According to a fourth aspect of the present invention, there is provided a storage medium storing therein a program which executes processes comprising a process for transmitting a plurality of first collation information by means of respective prescribed connection means in the first communication device, a process for collating the first collation information with own peculiar collation information while receiving the first collation information in the second communication device, a process for transmitting a second collation information to the prescribed connection means in the second communication device, and a process for collating the second collation information with peculiar collation information in the first communication device.
According to a fifth aspect of the present invention, in the fourth aspect, there is provided a storage medium storing therein a program which executes processes, further comprising a process for displaying result of the collation.
According to a sixth aspect of the present invention, in the fourth aspect, there is provided a storage medium storing therein a program which executes processes, wherein the first communication device is a high speed SHELF which processes a high speed signal, and the second communication device is a low speed SHELF which processes a low speed signal.
The above and further objects and novel features of the invention will be more fully understood from the following detailed description when the same is read in connection with the accompanying drawings. It should be expressly understood, however, that the drawings are for purpose of illustration only and are not intended as a definition of the limits of the invention.
REFERENCES:
patent: 5473597 (1995-12-01), Yajima
patent: 5862145 (1999-01-01), Grossman et al.
NEC Corporation
Ostrolenk Faber Gerb & Soffen, LLP
Pham Chi
Phu Phuong
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