Gigabit Video Interface

Gigabit Video Interface (GVIF) is a digital video serial interface developed by Sony in 1996 for high quality uncompressed video transmission from digital video hardware. It is intended primarily for automotive applications. It is compatible with the HDCP encryption system.

GVIF transmits uncompressed serial data at speeds up to 1.95 Gbit/s. GVIF transmits over a single differential pair, as a result, the cable is thin. Transmission distances up to ten meters are possible.

Utilisation

The GVIF bus was used circa 2000 onwards on many mid range vehicles including Land Rover Discovery 3, Range Rover , Lexus Models and Toyota Prius. The GVIF bus was primarily for carrying the video signal between the integrated Satellite Navigation unit and the in vehicle display (also known as Head Unit). GVIF bus in these vehicles only carried video despite the specification allowing for data stuffing of other information.

gollark: Alternatively, I guess it might be faster if you use symmetric encryption, because presumably you won't give random people access to *either* device.
gollark: Oh, yes, that too.
gollark: Trouble is that ECC stuff in CC currently is... not fast.
gollark: The door lock would then verify that the message was actually signed with the key, and the times are close enough.
gollark: The door lock or whatever would store the public key, the pocket computer the private key, and the pocket computer would constantly broadcast a message containing the current time, signed with its private key.


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