Method for directly transferring electronic coin data sets between terminals, payment system, currency system and monitoring unit

This invention describes a method for making payments using digital currency, or "electronic coins," directly between two payment terminals. Each digital coin contains a monetary value and an obfuscation amount. The process involves hiding the obfuscation amount of the digital coin and then sending this partially masked coin data to a central monitoring system for registration before the payment is completed.

Why it matters: Filed before widespread CBDC development. The claims describe a centrally managed e-cash system with privacy features, which aligns with current global interest in Central Bank Digital Currencies and advanced cryptographic techniques for privacy.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedCryptographic protocols, payment network, central server

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