Abstract: The invention relates to improvements to the operation of a broadcast data receiver (BDR) and, in particular, to the provision of a video data amplifier and driver circuit for the processing of a received video data signal. The circuit includes a means for generating at least one compensatory value and preferably a multiplication factor. The compensatory value is added to the received video data signal as it passes through the circuit to form a combined signal. The combined signal can also be multiplied. The level of the compensatory value can alter with reference to changes in the environment of the operation of the circuit so as to take into account and minimise changes affecting the operation of the circuit and on the video signal.

Abstract: The invention relates to the provision of electrical apparatus which has at least one printed circuit board on which electrical components are set out and a first format of connection type exposed to allow connection of further apparatus. The connections can be attached directly to further apparatus with the same connector format and allow transfer of data between further electrical apparatus or alternatively, at the time of manufacturing an adaptor can be provided which has connectors of the same format as those on the printed circuit board for connection with the said printed circuit board and a series of output connectors of a different format which can be exposed for the selective connection thereto of phono or other format connectors.

Abstract: The invention relates to improvements to the operation of a broadcast data receiver (BDR) and, in particular, to the provision of a video data amplifier and driver circuit for the processing of a received video data signal. The circuit includes a means for generating at least one compensatory value and preferably a multiplication factor. The compensatory value is added to the received video data signal as it passes through the circuit to form a combined signal. The combined signal can also be multiplied. The level of the compensatory value can alter with reference to changes in the environment of the operation of the circuit so as to take into account and minimise changes affecting the operation of the circuit and on the video signal.

Abstract: The invention relates to the provision of electrical apparatus which has at least one printed circuit board on which electrical components are set out and a first format of connection type exposed to allow connection of further apparatus. The connections can be attached directly to further apparatus with the same connector format and allow transfer of data between further electrical apparatus or alternatively, at the time of manufacturing an adaptor can be provided which has connectors of the same format as those on the printed circuit board for connection with the said printed circuit board and a series of output connectors of a different format which can be exposed for the selective connection thereto of phono or other format connectors.