SSD One-Button Erasure Control for Secure Data Destruction

The patent applies parameter changes by providing multiple erasing voltage levels (first erasing voltage for software erasing, second erasing voltage for hardware erasing) that correspond to different deletion completeness requirements. The control unit selects appropriate voltage parameters based on user needs, enabling effective data deletion while accounting for SSD's flash memory characteristics where traditional deletion methods are insufficient.

The patent segments the data deletion process into two distinct methods: software erasing (using first erasing voltage to clear data logically) and hardware erasing (using second erasing voltage to physically destroy the storage medium). This segmentation allows users to choose the appropriate deletion method based on their security requirements, resolving the contradiction between deletion completeness and operational ease.

The control unit is designed with multi-functionality, capable of executing both software erasing and hardware erasing operations based on user input. It integrates the decision-making logic for selecting erasing methods, managing different voltage levels, and coordinating with the storage unit, thereby providing comprehensive data destruction capabilities without requiring separate complex systems for each function.

The system implements self-service by automatically determining the appropriate erasing method and executing it based on the button press duration detected by the detection unit. The control unit autonomously manages the entire deletion process, selecting between software and hardware erasing without requiring manual intervention or complex user configuration, thus simplifying the overall device operation.

The patent implements dynamics by allowing the erasing method to be dynamically selected based on user needs and button press duration. The system can adapt between software erasing (faster, less secure) and hardware erasing (slower, more secure) modes, providing flexible data destruction solutions that balance speed and security requirements without being locked into a single fixed method.

The system performs preliminary action by providing users with the option to select their preferred erasing method before the actual data deletion occurs. Through the detection unit and control unit, users can pre-determine whether they need quick software erasing or secure hardware erasing, allowing the system to prepare and execute the appropriate method in advance, thus optimizing both speed and security based on user intentions.

The patent replaces mechanical physical destruction with electrical control mechanisms. Instead of requiring actual physical destruction of the storage device, the control unit uses electrical signals (first and second erasing voltages) to achieve data deletion. This substitution maintains data security while significantly improving ease of operation, as users simply need to press buttons rather than perform physical destruction actions.

The control unit serves as an intermediary between the user and the storage unit, mediating the data destruction process. It receives user input through the detection unit, determines the appropriate erasing method, and executes it through controlled electrical signals. This intermediary function simplifies operation for users while ensuring secure data destruction, eliminating the need for direct physical intervention.