Dual License Management for User and Device Access Control

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Solution Overview

Problem

Existing service providing systems face difficulties in effectively limiting the number of electronic devices and users capable of using an application, as existing methods struggle to manage permissions accurately between users and devices.

Innovation Solution

A system and method that determine and manage licenses for both users and electronic devices, assigning use permissions based on issued licenses, allowing only authorized users and devices to access the application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If use permission is assigned to a user, then users can access the application, but it is difficult to limit electronic devices capable of using the application

Engineering Contradiction:
Improveuser accessVSAvoiddevice limitation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent segments the licensing system into two independent license types: user licenses and device licenses. User licenses are assigned to individual users, while device licenses are assigned to electronic devices. This segmentation allows the system to independently control and limit both user access and device access, resolving the contradiction by enabling precise control over each dimension separately rather than through a single unified permission system.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If use permission is given to an electronic device, then electronic devices can use the application, but it is difficult to limit users capable of using the application

Engineering Contradiction:
Improvedevice accessVSAvoiduser limitation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements segmentation by creating distinct license management streams for users and devices. The system maintains separate user license records and device license records, allowing independent assignment and revocation. When a device license is granted, the system can still limit user access through user license requirements, and vice versa, thereby resolving the contradiction through independent control mechanisms.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If a single license system is used, then the system is simple to manage, but it cannot precisely control both users and devices

Engineering Contradiction:
Improvelicense managementVSAvoidpermission control
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent divides the license management system into two parallel but independent tracks: user license management and device license management. Each track has its own assignment procedures, storage structures, and validation logic. This segmentation increases precision by allowing granular control over users and devices separately, while the overall system architecture remains manageable through standardized license issuance and validation processes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds a new dimension to license management by introducing device-level licensing alongside traditional user-level licensing. This transforms the previously one-dimensional (user-only) permission system into a two-dimensional system where both user identity and device identity are independent factors in access control. This dimensional expansion enables precise control over the intersection of authorized users and authorized devices.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3910506A1System and method for providing service, and carrier means
Publication Date: 2021.11.17 RICOH CO LTD
  • EP3910506A1 patent drawingFigure 1
  • EP3910506A1 patent drawingFigure 2
  • EP3910506A1 patent drawingFigure 3

AI summary

A system (50) includes a license management unit that determines whether a license for an application has been issued to both a user and an electronic device, assigns use permission of the application to each of the user and the electronic device, based on a determination that a license for the application has been issued to both the user and the electronic device, and when use permission of the application has been assigned to both the user and the electronic device, permits the user who has logged in to the electronic device to use the application.