US 11,902,147 B2Granted

Remote access system, remote access control method, and non-transitory recording medium

AssigneeRicoh Company, Ltd.

InventorsHiroshi Ota, Motohiro Nagao

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Abstract

A communication system includes: a management server that receives, from an information terminal connectable to a first network, a connection request for connecting to a web service provided by a web server connectable to a second network; first communication control circuitry that controls communication of a communication apparatus connectable to the second network, and second communication control circuitry that controls communication of the information terminal. The first communication control circuitry connects to a relay server that relays communication between the second network and the first network. The second communication control circuitry connects the information terminal to the relay server. A request for the web service provided by the web server and a response to the request are transmitted and received between a web browser of the information terminal and the web server via the relay server and the first communication control circuitry.

Claims12

Dependent claims

A communication system comprising:

a management server configured to
transmit a login screen to an information terminal, the login screen being displayed in a web browser of the information terminal,
receive, from the information terminal connectable to a first network, login information for a user, the login information for the user being input into the web browser of the information terminal,
determine, based on the login information, whether to authenticate the user,
when the user is authenticated, transmit an instruction to display, in the web browser of the information terminal, a service list including a plurality of web services that are selectable by the user,
receive a connection request for connecting to a web service of the plurality of web services contained in the service list that are provided by a web server connectable to a second network different from the first network, and
transmit the connection request to a communication apparatus connectable to the second network;
the communication apparatus configured to
receive the connection request from the management server, and
in response to receiving the connection request from the management server, transmit a first WebSocket connection request to a relay server;
the information terminal connectable to the first network, the information terminal configured to
display the service list in response to the user being authenticated, and
transmit a second WebSocket connection request to the relay server;
and
the relay server configured to
receive the first WebSocket connection request from the communication apparatus,
in response to receiving the first WebSocket connection request, establish a first encrypted communication session between the relay server and the communication apparatus,
receive the second WebSocket connection request from the information terminal, and
in response to receiving the second WebSocket connection request, establish a second encrypted communication session between the relay server and the information terminal,
wherein the first and second encrypted communication sessions enable communication of data between the information terminal and the communication apparatus through the relay server.

17 more elements

A communication control method performed by a computer to control remote access from an information terminal connectable to a first network to a web server connectable to a second network different from the first network, the computer being connectable to the second network, the communication control method comprising:

transmitting, from a management server to the information terminal, a login screen, the login screen being displayed in a web browser of the information terminal;
receiving, at the management server, login information from a user, the login information of the user being input into the web browser of the information terminal;
determining, by the management server, whether to authenticate the user based on the received login information;
when the user is authenticated based on the received login information, displaying, in the web browser of the user terminal, a service list including a plurality of web services that are selectable by the user, the plurality of web services being web services that are provided by the web server;
receiving, at the management server, a connection request for connecting to a web service of the plurality of web services contained in the service list provided by the web server, the connection request being made from the web browser included in the information terminal;
transmitting the connection request to the computer;
receiving, at the computer, the connection request;
in response to receiving the connection request, transmitting a first WebSocket connection request to a relay server;
receiving, at the relay server, the first WebSocket connection request;
in response to receiving the first WebSocket connection request, establishing a first encrypted communication session between the relay server and the computer;
transmitting, from the information terminal, a second WebSocket connection request;
receiving, at the relay server, the second WebSocket connection request;
and
in response to receiving the second WebSocket connection request, establishing a second encrypted communication session between the relay server and the information terminal,
wherein the first and second encrypted communication sessions enable communication of data between the information terminal and the communication apparatus through the relay server.

12 more elements

A non-transitory recording medium storing a plurality of instructions which, when executed by one or more processors, cause the processors to perform a communication control method comprising:

transmitting, from a management server to an information terminal, a login screen, the login screen being displayed in a web browser of the information terminal;
receiving, at the management server, login information from a user, the login information of the user being input into the web browser of the information terminal;
determining, by the management server, whether to authenticate the user based on the received login information;
when the user is authenticated based on the received login information, displaying, in the web browser of the user terminal, a service list including a plurality of web services that are selectable by the user, the plurality of web services being web services that are provided by the web server;
receiving, at the management server, a connection request for connecting to a web service of the plurality of web services contained in the service list provided by the web server, the connection request being made from the web browser included in the information terminal;
transmitting the connection request to a computer;
receiving, at the computer, the connection request;
in response to receiving the connection request, transmitting a first WebSocket connection request to a relay server;
receiving, at the relay server, the first WebSocket connection request;
in response to receiving the first WebSocket connection request, establishing a first encrypted communication session between the relay server and the computer;
transmitting, from the information terminal, a second WebSocket connection request;
receiving, at the relay server, the second WebSocket connection request;
and
in response to receiving the second WebSocket connection request, establishing a second encrypted communication session between the relay server and the information terminal,
wherein the first and second encrypted communication sessions enable communication of data between the information terminal and the communication apparatus through the relay server.

12 more elements

Dependencies are inferred from the claim text.