Barcode Mobile Payment Device Limit Segmentation

The patent segments the payment control mechanism by introducing device-specific payment limits separate from account-level control limits. Each mobile device bound to an account has its own payment limit configuration, allowing the system to distinguish between authorized and unauthorized devices. This segmentation enables the server to reject payment requests from lost or stolen devices even if the account itself remains secure, thus maintaining payment convenience for legitimate users while enhancing security against unauthorized transactions.

The patent applies local quality by assigning different payment limit attributes to different mobile devices bound to the same account. Instead of applying a uniform control limit to all devices, the system configures device-specific payment limits that can vary based on the individual device's security status, user preferences, or risk assessment. This allows the system to maintain versatility by supporting multiple devices while reducing property loss risk by applying stricter limits to devices that may be more vulnerable to loss or theft.