Token-based open-loop stored-value card network

US12314920B2 · kind B2 · utility

Assignee

• The Toronto-Dominion Bank · CA

Inventors

• Milos Dunjic · Oakville, CA
• Zhihong Luo · Singapore, SG

Key dates

• Filing date: Sep 25, 2018
• Grant date: May 27, 2025
• Expiry date: Jul 17, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q20/40
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A token management server includes a memory and a data processor. The memory stores a token database and a subledger database. The processor is configured to save a token in the token database in a record in association with a ledger identifier and a subledger identifier. The processor receives from a point-of-sale station a token authorization request that includes the token and an authorization value, locates in the token database the record that includes the token, extracts the ledger identifier and the subledger identifier from the record, locates in the subledger database a subledger that is associated with the subledger identifier, and confirms that a balance value associated with the located subledger is at least equal to the authorization value. The processor then initiates a transfer from a pooling ledger that is associated with the ledger identifier of a transfer amount that is equal to the authorization value.