Multi-Device Message Service Authentication and Presence Control
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Solution Overview
Problem
In a multi-device environment, existing message service systems face challenges in preventing user privacy disclosure when a terminal is lost or not managed properly, and in providing accurate presence information based on user location and schedule, leading to potential privacy issues and inconvenient service usage.
Innovation Solution
A message service system that registers multiple terminals for a user, controls message transmission to specific terminals based on authentication, and determines presence information by analyzing location and schedule data to ensure secure and convenient service delivery across devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If messages are simultaneously transmitted to multiple user terminals in a multi-device environment, then service convenience and accessibility are improved, but user privacy disclosure risk increases when a terminal is lost or not managed properly
Solution Approach 1:
The patent applies local quality by differentiating message delivery behavior across different terminals based on their authentication status and user presence state. Each terminal receives messages according to its specific conditions (authenticated/unauthenticated, user present/absent), rather than a uniform delivery approach. This resolves the contradiction by tailoring message accessibility to local terminal characteristics, maintaining convenience for legitimate terminals while blocking privacy risks from unauthorized terminals.
Solution Approach 2:
The service device acts as an intermediary between the message source and multiple user terminals. It mediates message delivery by controlling which terminals receive messages based on authentication results and user presence information. This intermediary function resolves the contradiction by filtering message distribution - allowing convenient multi-device access for authorized terminals while preventing privacy disclosure to unauthorized terminals through controlled mediation.
2Adaptability or versatility
If presence information is provided based on user location and schedule data, then service personalization and user experience are improved, but user privacy protection becomes more challenging
Solution Approach 1:
The patent applies preliminary action by obtaining user consent and authentication before collecting location and schedule information. The service device first verifies user identity and secures permission to access personal data, then uses this information for presence determination. This preliminary authentication step resolves the contradiction by establishing privacy protection boundaries before personalization begins, allowing service adaptation only within authorized limits.
Solution Approach 2:
The patent applies local quality by determining presence information differently for different users based on their specific authentication status and granted permissions. Each user's presence state is calculated using only their authorized data (location, schedule), tailored to their individual privacy settings. This resolves the contradiction by personalizing service adaptation locally for each authenticated user while maintaining privacy protection through user-specific data access controls.
3Ease of operation
If message service is provided across multiple devices without authentication control, then service accessibility is improved, but unauthorized access and security risks increase
Solution Approach 1:
The patent applies preliminary action by performing authentication of user terminals before providing message service access. The service device verifies terminal authenticity and user identity in advance, then grants message reception rights only to authenticated terminals. This preliminary security check resolves the contradiction by establishing accessibility for authorized devices while blocking unauthorized access, maintaining both convenience and security through pre-validated authentication.
Data Source
AI summary
The present invention relates to a method and a system for a message service in a multi-device environment in which one or more terminals are used by a user, and to an apparatus therefor, the present invention registering, for each user, one or more terminals which will be using a message service and providing the message service by means of the one or more registered terminals, thereby providing additional services comprising user privacy protection and/or provision of presence information.