Projector Pairing via Near-Field Communication
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Solution Overview
Problem
Existing information handling systems face challenges in securely and efficiently pairing remote control devices with projectors, especially in scenarios where direct control from an administrative console is impractical due to distance or multiple simultaneous presentations, leading to security risks and operational inefficiencies.
Innovation Solution
The system employs a unique identifier stored in the remote control device's memory, which is communicated via near-field communications and radio communications to pair with a projector, ensuring secure authorization and control through an administrative console, allowing the remote control device to command the projector's display while maintaining security protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct control from administrative console is used, then security management is improved, but operational efficiency deteriorates when administrative console is not directly accessible
Solution Approach 1:
The patent introduces a remote control device as an intermediary between the administrative console and the projector. The remote control device receives authorization from the administrative console and can then control the projector independently, eliminating the need for direct administrative console access while maintaining security. This mediator approach resolves the contradiction by enabling efficient local control without compromising centralized security management.
2Ease of operation
If remote control devices are allowed without pairing, then ease of operation is improved, but security deteriorates due to unauthorized access risks
Solution Approach 1:
The patent implements a pairing process that must be completed before the remote control device can control the projector. During pairing, the projector and remote control device exchange and store unique identifiers, establishing a trusted relationship in advance. This preliminary authorization ensures that only paired remote control devices can control the projector, preventing unauthorized access while maintaining ease of operation for authorized users.
3Reliability
If pairing process requires administrative console, then security is improved, but device complexity increases
Solution Approach 1:
The patent extracts the pairing functionality from the administrative console and implements it directly in the projector. The projector can now perform pairing operations independently by exchanging unique identifiers with remote control devices, eliminating the need for administrative console involvement in the pairing process. This extraction maintains security through cryptographic authentication while significantly simplifying the overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables secure and efficient remote control of projectors by authorized devices, even when the administrative console is not in direct line-of-sight, ensuring only authorized devices can display sensitive information and maintaining security through encryption and verification processes.
Implementation Method 1
a near-field communication reader 152 integrated into the projector 140
Implementation Method 2
communicated through near-field communications and radio frequencies
Data Source
AI summary
A remote control device is authorized to command the presentation of information from an information presenting device by communicating with the information presenting device by a first mode of communications while the remote control device and the information presenting device are proximate. In response to the authorizing, the information presenting device is unlocked to permit the presentation of information in response to commands from the remote control device. After the unlocking, the information presenting device presents information in response to commands from the remote control device.