Title:
STATUS NOTIFICATION SYSTEM TO COUNTER COMMUNICATION DEVICE BETWEEN DATA COMMUNICATION DEVICES
Document Type and Number:
Japanese Patent JP3912498
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a status notification system in which the status of a counter communication device can be monitored between communication devices for mutually carrying out the transmissions of data between networks.
SOLUTION: In the status notification system to the counter communication device between the data communication devices for carrying out the exchange of the data mutually between the communication devices by forming a packet by inserting a particular identification pattern to the interval of transmission data, each communication device is provided with an identification pattern inserting means 1 for setting a plurality of different identification patterns the identification pattern and repeatedly inserting the plurality of identification patterns in the preset order for each packet to be transmitted to the counter communication device, and an identification pattern collecting means for collating the identification pattern contained in the received packet with a plurality of different identification patterns repeated in the preset order.
Inventors:
Naoki Ito
Application Number:
JP2002066331A
Publication Date:
May 09, 2007
Filing Date:
March 12, 2002
Export Citation:
Assignee:
Yokogawa Electric Corporation
International Classes:
H04N1/32; H04L69/40; (IPC1-7): H04L29/14; H04N1/32
Domestic Patent References:
| JP7030617A | ||||
| JP273740A | ||||
| JP2000332739A | ||||
| JP2001345830A | ||||
| JP8172486A |
Attorney, Agent or Firm:
Teruo Naito
Noriaki Miyakoshi
Noriaki Miyakoshi