Patent classifications
G
PHYSICS
Load children
G09
EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
Load children
G09G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
Load children
2370/00
Aspects of data communication
Load children Filter patents View analytics View as hierarchy
G09G2370/22
Detection of presence or absence of input display information or of connection or disconnection of a corresponding information source
Filter patents View analytics View as hierarchy