IP Library › Granted Patent US 12676827
Granted Patent B2
US 12676827 · App. 18/884,260 · Granted Jul 7, 2026

Communication system

Inventors: Junko Kato (Tokyo, JP); Tomohiro Hattori (Tokyo, JP)
Assignee: RISO KAGAKU CORPORATION
H04L51/23H04L51/58
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Quick Facts
Patent No.
US 12676827
App. No.
18/884,260
Granted
Jul 7, 2026
Kind
B2
Abstract

A communication system includes: a message management server device that accepts communication data sent from a school terminal device, transmits the communication data to a guardian terminal device, and accepts communication data sent from a guardian terminal device, and a bulletin board management server device that accepts communication data sent from the school terminal device, enables the guardian terminal device to view the communication data, but does not accept communication data from the guardian terminal device. It is possible to switch between sending communication data from the school terminal device to the message management server device and from the school terminal device to the message board management server device.

Claims (13)

1 . A communication system comprising:

a first server device that accepts communication data sent from a first terminal device, transmits the communication data to a second terminal device, and accepts communication data sent from the second terminal device; and

a second server device that accepts communication data sent from the first terminal device, makes the communication data viewable from the second terminal device, but does not accept communication data from the second terminal device;

transmission of communication data from the first terminal device being switchable between transmission from the first terminal device to the first server device and transmission from the first terminal device to the second server device, wherein:

the first server device has a first memory unit that stores communication data transmitted from the first terminal device; and

the communication data stored in the first memory unit is read by a web application of the first server device and transmitted to the second terminal device;

the second server device has a second memory unit that stores the communication data transmitted from the first terminal device; and

the second terminal device can view the communication data stored in the second memory unit by directly accessing the second memory unit, without going through a web application of the second server device.

2 . The communication system as defined in claim 1 , wherein:

the transmission of communication data from the first terminal device to the first server device and the transmission of communication data from the first terminal device to the second server device is switched based on server selection information which is set in the first terminal device.

3 . The communication system as defined in claim 1 , wherein:

in the case that the first server device accepts new communication data sent from the first terminal device, the first server device sends the new communication data to the second terminal device in response to accepting the new communication data; and

in the case that the second server device accepts new communication data sent from the first terminal device, the second server device notifies the second terminal device of the new communication data in response to a request from the second terminal device.