A display microcomputer displays a menu corresponding to several functions, such as picture-in-picture display and satellite broadcast reception on a mini-viewing screen that is part of the cathode-ray tube picture screen of a television receiver. A remote controller permits selection of different video...http://www.google.de/patents/US5650827?utm_source=gb-gplus-sharePatent US5650827 - Apparatus for displaying inhibited menu functions in a television receiver
