Abstract: Apparatus, systems and methods for generating a hybrid on screen display are described. A background image portion of a user interface is generated at a switching device. Video data representing the background image portion of the user interface is transmitted to a user station of a user console. The video data is modified at the user station as it is received using video data representing a user interface element that is specific to the user station. A customized user interface is displayed on a display device attached to the user station.

Abstract: Apparatus and methods for transmitting digital video data and auxiliary data over a four twisted wire pair cable, and systems using such apparatus, are described. A first, second and third digital video color signal and a digital video timing signal are transmitted using differential mode signalling over a first, second, third and fourth twisted wire pair of a cable. Auxiliary data is sent over a data channel using common mode signalling over a first pair of the four twisted wire pairs of the cable. A common mode choke can be used to add or remove a signal sent using the common mode signalling from a pair of wires also used to transmit one of the digital video color or digital video timing signals.

Abstract: Apparatus, systems and methods for generating a hybrid on screen display are described. A background image portion of a user interface is generated at a switching device. Video data representing the background image portion of the user interface is transmitted to a user station of a user console. The video data is modified at the user station as it is received using video data representing a user interface element that is specific to the user station. A customised user interface is displayed on a display device attached to the user station.

Abstract: Apparatus and methods for transmitting digital video data and auxiliary data over a four twisted wire pair cable, and systems using such apparatus, are described. A first, second and third digital video colour signal and a digital video timing signal are transmitted using differential mode signalling over a first, second, third and fourth twisted wire pair of a cable. Auxiliary data is sent over a data channel using common mode signalling over a first pair of the four twisted wire pairs of the cable. A common mode choke can be used to add or remove a signal sent using the common mode signalling from a pair of wires also used to transmit one of the digital video colour or digital video timing signals.