Integrated Document Display with Signature Verification
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Solution Overview
Problem
Current electronic ticketing and identification systems lack a secure and integrated solution for displaying and verifying authorization data, often requiring multiple documents and infrastructure for validation, which can be cumbersome and prone to manipulation.
Innovation Solution
A document with an integrated display and data processing method that includes an interface for receiving and verifying authorization data, displaying it only if the signature is valid, and using a bistable display to reduce power consumption and enhance security against manipulation, with features like near-field communication and optical security features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic ticketing systems use multiple documents and infrastructure for validation, then authorization verification can be performed, but the system becomes cumbersome and prone to manipulation
Solution Approach 1:
The patent combines multiple functions (authorization data storage, signature verification, and display) into a single integrated document. The display device is embedded within the document itself, eliminating the need for separate validation infrastructure and reducing the system to a single secure document that can be independently verified.
Solution Approach 2:
The document performs self-verification by integrating the signature verification means directly within it. The document can independently verify its own authorization data and display it only when valid, without requiring external infrastructure for validation, thus making the system self-sufficient and more secure.
2Ease of operation
If authorization data is always displayed on the document, then ease of use is improved, but security against manipulation and power consumption are worsened
Solution Approach 1:
The display device is designed to dynamically change its state based on verification results. It remains inactive or shows no data when authorization is not verified, and only displays authorization data when the signature is confirmed valid. This dynamic behavior enhances security while maintaining ease of use when needed.
Solution Approach 2:
The display device changes its operational parameters (power state, display content) based on the verification status. It transitions from a low-power inactive state to an active display state only when authorization data is verified, thus balancing visibility requirements with security and power consumption constraints.
3Duration of action of moving object
If continuous power is supplied to the display, then display functionality is maintained, but power consumption increases
Solution Approach 1:
The display device operates periodically rather than continuously. It activates only at specific moments when authorization data needs to be displayed or updated, and remains in a low-power state otherwise. This periodic operation maintains necessary display functionality while dramatically reducing overall power consumption.
Solution Approach 2:
The patent replaces continuous power supply mechanisms with event-triggered power activation. Instead of maintaining constant power to the display, the system uses verification events to trigger temporary power activation, substituting a continuous mechanical power supply with an event-driven approach that reduces energy consumption.
Data Source
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AI summary
The invention relates to a document with an integrated display (104), having an interface (102) for receiving authorization data (118) and a signature (120) of the authorization data, having means (110) for verification of the signature, having means (108, 114) for activating the display for outputting at least a part of the authorization data, wherein said output only occurs if said signature is valid, and wherein said interface is implemented for transmitting said authorization data and said signature.