| 摘要 |
Car, or other mobile device, security system has a fixed terminal (102) in the car and a portable device (103) or key for use by the driver to supply an unlocking signal (SD). The portable device produces an unlocking signal when a button is pressed, provided the owners biometric signal matches the expected signal. The biometric signal can be a pressure or temperature matching that of the owners finger applied to a button in the key. The latter includes a pressure and or a temperature sensor for measuring the biometric property. The matching of the signal to a stored value must occur within a certain time limit. |
