A lock screen is a computer user interface element used by various operating systems. They regulate immediate access to a device by requiring the user to perform a certain action in order to receive access, such as entering a password, using a certain button combination, or performing a certain gesture using a device's touchscreen. There are various authentication methods to get past the lock screen, with the most popular and common ones being personal identification numbers (PINs), the Android pattern lock, and biometrics.
Courts cited mobile phones by Neonode as prior art for Apple's iOS lock screen.
In physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization.
Common physical security access control with a finger print
A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation.
Drop Arm Optical Turnstiles Manufactured by Q-Lane Turnstiles LLc
Underground entrance to the New York City Subway system
