US 6,016,476 · Granted 2000-01-18

IBM's 2000 Blueprint for Your Fingerprint Wallet

Imagine a handheld device that recognizes your fingerprint or voice, stores all your credit card info, and lets you make payments wirelessly by scanning your biometrics. This 2000 IBM patent describes an early version of what we now call mobile wallets and contactless payments—a pocket-sized secure payment system that only works when it's actually you using it.

Curated and verified by the IsItPatented Editorial team

The plain-English version

What it protects

The claims cover a portable device (like an early PDA) that combines biometric verification (fingerprint or voice recognition), secure digital storage of financial data, wireless communication capability, and the ability to write selected payment information to a smartcard only after confirming the user's identity. Specifically, what's protected is the system architecture where a temporary digital certificate from a central server must be present and valid before biometric data can unlock and transfer card information to a Universal Card for transactions.

Why it matters

This patent captures an early conceptual bridge between physical wallet security and digital authentication. Filed in 1998 and granted in 2000, it was ahead of the curve in combining biometric verification, smartcard writing, and wireless communication into a unified payment system. While the specific hardware approach (PDA-based) didn't become the dominant path, the core ideas—biometric security, tokenized payment data, and wireless transaction initiation—became foundational to modern mobile payments and digital wallets that billions use today.

Real-world use

When you unlock your phone and use Apple Pay or Google Pay with your face or fingerprint to complete a contactless payment, you're executing the same conceptual flow this patent locked down: biometric check, then secure transmission of payment credentials to complete a transaction.

Original USPTO abstract

The present invention is a portable client PDA with a touch screen or other equivalent user interface and having a microphone and local central processing unit (CPU) for processing voice commands and for processing biometric data to provide user verification. The PDA also includes a memory for storing financial and personal information of the user and I/O capability for reading and writing information to various cards such as smartcards, magnetic cards, optical cards or EAROM cards. The PDA includes a Universal Card, which is common generic smartcard with a unique imprint provided by a service provider, on which selected financial or personal information stored in the PDA can be downloaded to perform certain consumer transactions. The PDA includes a modem, a serial port and/or a parallel port so as to provide direct communication capability with peripheral devices (such as POS and ATM terminals) and is capable of transmitting or receiving information through wireless communications such as radio frequency (RF) and infrared (IR) communication. The present invention is preferably operated in two modes, i.e., a client/server mode and a local mode. The client/server mode is periodically performed to download a temporary digital certificate (which is necessary to access selected information stored in the PDA and to write such information to the Universal Card) from a central server of the service provider of the PDA and Universal Card. Next, the local mode of operation is performed by providing the PDA with biometric data and selecting one of the pre-enrolled credit cards that are stored in the PDA. Upon biometric verification, the Universal Card is written with the selected card information, which is then used to initiate a consumer transaction. In the absence of an unexpired digital certificate, however, the selected card information will not be written to the Universal Card, notwithstanding that the user may have passed local biometric verification.

Patent details

Publication number: US 6,016,476
Filing date: 1998-01-16
Grant date: 2000-01-18
Assignee: International Business Machines Corporation
Inventor(s): MAES; STEPHANE HERMAN, SEDIVY; JAN
CPC class: G07F7/1008

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