Abstract: A blood pressure detection device manufactured by a semiconductor process includes a substrate, a microelectromechanical element, a gas-pressure-sensing element, a driving-chip element, an encapsulation layer and a valve layer. The substrate includes inlet apertures. The microelectromechanical element and the gas-pressure-sensing element are stacked and integrally formed on the substrate. The encapsulation layer is encapsulated and positioned on the substrate. A flowing-channel space is formed above the microelectromechanical element and the gas-pressure-sensing element. The encapsulation layer includes an outlet aperture in communication with an airbag. The driving-chip element controls the microelectromechanical element, the gas-pressure-sensing element and valve units to transport gas.

Abstract: In one embodiment, an antivirus uses a secure call path that includes an antivirus system call table containing a reference to an operating system kernel routine. The call path may also include an antivirus device driver that has access to the antivirus system call table. The antivirus may send a service request to the operating system kernel routine by way of the call path to perform file manipulations for virus scanning, for example. Advantageously, the call path gets around possible rootkit infestations.