US 11620634

US Patent 11,620,634: Multi-Function Smart Tokenizing Electronic Payment Device

Title: Multi-function smart tokenizing electronic payment device
Assignee: CardWare Inc
Inventor: David Wyatt
Filing Date: 2021-11-16
Issue Date: 2023-04-04
Abstract: An embodiment includes a multi-function electronic device capable of generating a programmed magnetic field of alternating polarity based on a speed of a card swipe, and methods for constructing the device for the purpose of emulating a standard credit card. An apparatus is described to allow the device to emulate behavior of a credit card when used in electronic credit card readers. Additionally, methods are described to allow user control of the device for the purpose of authorizing or controlling use of the device in the application of credit, debit and cash transactions, including cryptocurrency and device-to-device transactions. Methods are also described for generating a limited-duration payment number when performing a transaction for the purpose of creating a limited-use payment number, which is limited in scope of use to a predetermined number of authorized transactions. Furthermore the device may interact with other similar devices in proximity for the purpose of funds or credit/debit transfers.

Plain-Language Overview of Independent Claims

The complete numbered claims section was not explicitly provided in the patent text. However, the "Summary of the Invention" section outlines three primary inventive aspects, which are typically detailed in the independent claims. Based on these descriptions, the independent claims generally cover the following:

1. Claim 1 (Apparatus for Emulating a Magnetic Card): This claim describes an apparatus that functions as a thin, card-shaped device. It includes memory to store various identification data, a processor connected to the memory, and a user interface for selecting specific identification data. Crucially, it has a magnetic card reader detection unit to sense when it's near a standard magnetic card reader. An inductor assembly, controlled by the processor, generates a magnetic field with alternating polarity when a reader is detected. This magnetic field, which encodes the selected identification data, is designed to be read by the magnetic read head of a standard card reader, effectively emulating a traditional magnetic strip.

2. Claim 2 (Multi-Function Electronic Device for Device-to-Device Transactions): This claim focuses on a multi-function electronic device equipped with a Near-Field Communication (NFC) unit, a touch sensor array, a display, a motion rate detection array, and memory for user data and currency amounts. A processor links all these components. The device is characterized by its ability to initiate device-to-device transactions between two such devices. This is triggered by detecting the proximity of the two devices and an input from a user via the touch sensor. The transaction involves exchanging stored currency and user data between the devices using the NFC unit.

3. Claim 3 (Method of Performing a Transaction with Limited-Duration Payment Numbers): This claim details a method for conducting a transaction using a multi-function electronic device. The method involves receiving a user input signal that activates the device's NFC unit. The device then receives an indication of the transaction's currency amount. Following this, the device generates a unique limited-duration payment number. Finally, this limited-duration payment number is transmitted from the device to the transaction's recipient. This payment number is designed for limited use, either for a set number of transactions or a specific time period.

CAFC 2026 Dockets

As of April 26, 2026, a search of the U.S. Court of Appeals for the Federal Circuit (CAFC) 2026 dockets did not return any specific cases related to US Patent 11,620,634. The search results provided general CAFC case information and scheduled cases for May 2026 but did not list any litigation directly involving this patent.