ADAPTERSCHALTUNG FUER FERNSEHKOMPONENTENSIGNALE.

摘要

The t.v. signal adaptor has three respective input circuits for the red,green and blue signals and two further input circuits for internal and external video signals selected via a video switching signal. The outputs of the first three input circuits are fed to a matrix for generating a brightness signal and two colour difference signals fed to an input/output interface with three input terminals coupled to respective input interface circuits. The outputs of at least one of the latter are digitised via an A/D converter. Pref. a coupling capacitor is inserted in the signal path before each input circuit.