Digital Watermarking for Electronic Receipt Duplication
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Solution Overview
Problem
Electronic sales receipts can be easily copied, allowing individuals to fraudulently return multiple items by creating multiple copies of a single original receipt, which undermines the integrity of return policies and prevents stores from verifying the authenticity of receipts.
Innovation Solution
A system using portable computerized devices with wireless communication technologies like Bluetooth or NFC to transfer and manage electronic receipts, incorporating an electronic watermark to differentiate original from copied receipts, and a remote server for certification and control over receipt copies, ensuring only certified copies are recognized as originals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electronic receipts are made easily copyable for convenience, then ease of operation improves, but reliability deteriorates due to fraudulent returns
Solution Approach 1:
The patent applies visual differentiation through watermarks and graphical overlays that change or appear differently when copied. The original receipt displays a clean interface while copies show visible watermarks indicating they are duplicates, allowing the system to maintain ease of copying while preventing fraud through visual identification.
Solution Approach 2:
The patent introduces an intermediary verification system that acts as a mediator between the receipt and the return process. The server validates receipt authenticity by checking for watermarks and generating verification codes, which must be presented along with the receipt. This intermediary layer maintains convenience while ensuring reliability through automated verification.
2Adaptability or versatility
If multiple copies of receipts are permitted for flexibility, then adaptability improves, but object-generated harmful factors worsen due to fraudulent duplication
Solution Approach 1:
The patent segments the receipt system into distinct hierarchical levels: original receipts, certified copies with watermarks, and verification codes. Each segment serves a specific function - originals for primary transactions, copies for backups or secondary devices, and verification codes for authentication. This segmentation allows flexible usage while preventing fraud through clear identification of each segment's purpose.
Solution Approach 2:
The patent implements a feedback mechanism where the server continuously verifies receipt authenticity by checking watermarks and validating verification codes. When a receipt or copy is presented, the system provides immediate feedback on its validity, allowing legitimate uses while detecting and preventing fraudulent attempts. The feedback loop maintains adaptability while eliminating harmful duplications.
3Reliability
If watermarking is implemented to prevent fraud, then reliability improves, but device complexity increases
Solution Approach 1:
The patent uses digital watermarking technology that embeds verification data directly into the receipt image or data structure. This copying mechanism allows the original receipt to be replicated with embedded authentication information, enabling verification without requiring complex hardware or manual processes. The watermarking approach maintains reliability while keeping device complexity manageable through software-based solutions.
Data Source
AI summary
A computer-implemented process can be operated to create a watermarked copy of a unique original copy of an electronic sales receipt in a first computerized device to a second computerized device. The watermarked copy includes an electronic watermark identifying the copy. The process includes creating the watermarked copy of the electronic sales receipt by copying information from the original copy of the electronic sales receipt to the watermarked copy and providing the electronic watermark within the watermarked copy.