R5913197 /02 SP2K-S150
Public Key Infrastructure (PKI)
PKI is a framework for creating a secure method for exchanging information based on public key
cryptography. The foundation of a PKI is the certificate authority (CA), which issues digital certificates that
authenticate the identity of organizations and individuals over a public system such as the Internet. The
certificates are also used to sign messages, which ensures that messages have not been tampered with.
Scheimpflug principle
The "plane of sharp focus" can be changed so that any plane can be brought into sharp focus. When the DMD
plane and lens plane are parallel, the plane of sharp focus will also be parallel to these two planes. If, however,
the lens plane is tilted with respect to the DMD plane, the plane of sharp focus will also be tilted according to
geometrical and optical properties. The DMD plane, the principal lens plane and the sharp focus plane will
intersect in a line below the projector for downward lens tilt.
Trusted Device List (TDL)
The Goal of the TDL is to maintain timely and accurate information on participating auditoriums so that
participating subscribers can obtain information needed to issue KDMs. The TDL has several data sources:
Device manufacturers, Exhibitors, Deployment Entities, Integrators, Service Providers (interacting with
Exhibitors), regional authorities and Support.
Glossary
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