Koninklijke Philips Corporation N.v.

U.S. Philips Corporation

Ewa B Hekstra

Constant P M J Baggen

Arie G C Koppelaar

In a transmission system with a transmitter coupled to a receiver a main signal encoded according to a coding property is transmitted together with an auxiliary signal (AUX). In order to transmit the auxiliary signal without needing additional space in the the transmission frame, the auxiliary signal is transmitted by changing the coding property according to a predetermined sequence. This is done by means of the sequencer. In the receiver the decoding of the predetermined sequence is performed by a decoder.

Transmission system for transmitting a main signal and an auxiliary signal

In a transmission system with a transmitter coupled to a receiver a main signal encoded according to a coding property is transmitted together with an auxiliary signal (AUX). In order to transmit the auxiliary signal without needing additional space in the transmission frame, the auxiliary signal is transmitted by changing the coding property according to a predetermined sequence. This is done by means of the sequencer. In the receiver, the decoding of the predetermined sequence is performed by a decoder.

In a transmission system comprising a transmitter coupled via a transmission channel to a receiver. The transmitter comprises a channel encoder for deriving encoded symbols from source symbols. The receiver comprises a channel decoder for reconstructing the source symbols from the signal received from the transmission channel. According to the present invention, the transmitter comprises a separate encoder for coding and transmitting a coding property used in the channel encoder to the receiver. The receiver is arranged for receiving the encoded coding property from the transmission medium, and the separate channel decoder is arranged for decoding the encoded coding property. The coding property provided by the separate channel decoder is passed to a code property setting component in the channel decoder for setting the coding property of the channel decoder.

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Eindhoven, Netherlands

Ewa B Hekstra