Wireless Wake-Up for Low-Power Cryptocurrency Wallets

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Solution Overview

Problem

Users of cryptocurrency face challenges in managing self-custody due to technical complexities and security concerns, and existing devices for self-custody are often infrequently used, leading to inefficiencies and battery power consumption issues.

Innovation Solution

A cryptocurrency management device (CMD) with a fingerprint sensor and near-field communication (NFC) capabilities that automatically awakens components using a touch sensor or NFC device for authentication, reducing power consumption and extending battery life by maintaining components in a sleep state until activated.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If components remain continuously powered to ensure immediate availability for cryptocurrency management operations, then device responsiveness and user convenience are improved, but power consumption increases and battery life decreases

Engineering Contradiction:
Improvedevice responsivenessVSAvoidpower consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic power management by transitioning components between active and sleep states based on operational needs. The processor and display enter sleep mode during idle periods to conserve power, while the touch sensor remains in a low-power standby state. When user interaction is detected, the system dynamically transitions to full operational mode, providing immediate responsiveness only when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs periodic polling of the touch sensor rather than continuous processing. The touch sensor operates in a low-power state and only activates the main processor when a touch event is detected. This periodic check mechanism ensures the device remains responsive to user input while minimizing power consumption during extended idle periods between cryptocurrency management operations.

Inventive Principle:
Principle #19Periodic action

2Duration of action of stationary object

If the device is kept in a sleep state to conserve battery power for extended periods, then power consumption is reduced and battery life is extended, but device responsiveness and accessibility are reduced

Engineering Contradiction:
Improvebattery lifeVSAvoiddevice responsiveness
Core Design Contradiction:
Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The touch sensor is positioned to detect user interaction before the main system becomes fully active. When a user touches the display, the touch sensor detects this preliminary action and triggers the activation sequence, ensuring the device transitions to operational state exactly when needed. This preliminary detection mechanism eliminates any perceptible delay between user intent and system response.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If cryptocurrency management devices are designed for infrequent use to cater to typical user patterns, then device portability and simplicity are improved, but reliability and security during critical transactions may be compromised

Engineering Contradiction:
Improvedevice simplicityVSAvoidtransaction security
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The device performs self-activation through touch-sensitive display technology. When a user touches the display, the system automatically transitions from sleep mode to operational mode without requiring external power connection or complex activation procedures. This self-service mechanism ensures the device is always ready for secure transactions while maintaining simplicity and portability for infrequent use scenarios.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides secure and efficient management of cryptocurrency transactions by minimizing power usage and ensuring device longevity, allowing users to manage their assets securely over extended periods.

Implementation Method 1

a rectification circuit configured to convert a wireless signal received by the antenna into an activation signal for waking the processor from the sleep state

Methodology Applied
Scientific EffectElectromagnetic energy conversion: Electromagnetic Induction

Data Source

PatentUS12586071B2Cryptocurrency management systems and methods with wireless activation
Publication Date: 2026.03.24 BLOCK INC
  • US12586071B2 patent drawing
  • US12586071B2 patent drawing
  • US12586071B2 patent drawing

AI summary

A cryptocurrency management device (CMD) may be used to perform various cryptocurrency management functions, such as storage of cryptocurrency, user authentication, and initiation or processing of a transaction for transferring cryptocurrency. To conserve the power resources of the CMD, components of the CMD may be transitioned to a sleep state for extended periods of time. Such components may be automatically activated by a user touching the CMD or bringing a wireless communication device within range of the CMD. The circuitry of the CMD that triggers the activation are capable of continuously monitoring for such inputs over extended periods of time without consuming significant amounts of power, thereby conserving the power resources of the CMD.