Trusted Bill Splitting via Proximity-Based Transaction Verification
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Solution Overview
Problem
Existing electronic devices face challenges in ensuring legitimate financial transactions and coordinating payment methods among multiple parties, particularly in bill splitting scenarios, where separate transactions need to be initiated correctly to ensure user preferences and transaction legitimacy.
Innovation Solution
A network of trust is established among devices using wireless communication to verify identities through blockchain records, enabling seamless coordination of transactions and secure payment splitting by generating data that validates transaction requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate transactions are initiated by each party for bill splitting, then payment coordination among multiple parties is achieved, but transaction complexity and coordination overhead increase
Solution Approach 1:
The patent introduces a transaction service as an intermediary that coordinates bill splitting transactions. The service receives transaction requests from initiating devices, communicates with responding devices to obtain payment confirmations, and manages the overall transaction flow. This mediator approach resolves the contradiction by centralizing coordination logic, thereby enabling multi-party payment coordination while reducing the complexity burden on individual devices.
2Reliability
If transaction legitimacy is verified through manual coordination, then user preferences can be confirmed, but transaction processing time and effort increase
Solution Approach 1:
The patent implements preliminary action by obtaining payment confirmations from responding devices before final transaction execution. The transaction service sends requests to responding devices in advance to verify their payment intent and preferences. This preliminary verification ensures transaction legitimacy is established beforehand, allowing the actual transaction to be processed quickly without manual coordination delays during execution.
3Reliability
If trust establishment between devices is implemented, then transaction security is improved, but communication overhead and processing steps increase
Solution Approach 1:
The transaction service acts as a trusted intermediary that manages device identification and verification. Instead of requiring direct trust establishment between all pairs of devices, the service receives and verifies device identifiers, manages cryptographic operations, and coordinates authentication. This approach improves transaction security through centralized verification while reducing the complexity of peer-to-peer trust establishment among multiple devices.
Data Source
AI summary
A device may include a processor, a wireless transceiver in communication with the processor, and a non-transitory memory. The memory may store instructions that, when executed by the processor, cause the processor to perform processing. The processing may include sending, by the wireless transceiver, a request to share a transaction to at least one external user device in communication range of the device. The processing may include receiving, at the wireless transceiver, at least one sharing confirmation from the at least one external user device. The processing may include generating a transaction request. The transaction request may include data describing the transaction and a transaction portion to be paid by an account associated with the device. The processing may include sending the transaction request to a transaction service for fulfillment.