The present invention relates to a subscriber unit in a home environment and a communication system. In one embodiment the subscriber unit has an input for connection to a local video signal, from for instance a picture telephone or a video camera. A video/picture signal may thereby be reproduced in a TV-receiver being connected to the subscriber unit. A sensor in the subscriber unit detects whether a local video signal is present on the telephone unit's input. If this is the case, the control unit connects this signal to the receiving means for further transmission through the subscriber unit and the TV-receiver. The picture telephone image may either be shown separately across the entire screen of the TV or be presented in parallel with other pictorial/video information.

The present invention relates to an arrangement or a device for transmission and verification of signals in audio visual radio transmitters and receivers, such as TV receivers, set-top boxes, mobile handsets, etc. The receiver may be configured to receive a number of signal units within a frequency range. An identifying unit is configured to identify the signal units. A comparator unit configured to make possible for at least a portion of the signal units to be forwarded or at least partially be blocked with respect to the receiver. A verification unit, which includes a memory configured to store at least a number of signal units, verify that each forwarded signal units that pass the arrangement is being registered by means of a specific signal in a register unit.

A method, apparatus, and computer program product are provided in order to present different types of information, such as private information and public information, in a manner that preserves the confidentiality of the private information. In the context of a method, a determination is made as to whether information that is to be displayed is private. If the information is private, the method may cause the presentation of an obscured representation of the information on a non-private display. The method also causes the presentation of the information, such as an unobscured representation of the information, on a private pass-through display concurrent with the presentation of the obscured representation of the information on the non-private display. A corresponding apparatus and computer program product are also provided.

The present invention relates to an arrangement for transmission of signal units to at least one receiver. The receiver is being arranged to receive a number of signal units within a frequency range and a comparator unit being arranged to make possible for at least a portion of the signal units to be forwarded or at least partially be blocked with respect to the receiver. A verification unit, which includes a memory configured to store at least a number of signal units, verify that each forwarded signal units that pass the arrangement is being registered by means of a specific signal in a register unit.

The present invention relates to an arrangement for transmission of signal units to at least one receiver. The receiver is being arranged to receive a number of signal units within a frequency range and a comparator unit being arranged to make possible for at least a portion of the signal units to be forwarded or at least partially be blocked with respect to the receiver. A verification unit is arranged to verify that the forwarded signal units correspond to a corresponding signal unit in a memory. If the forwarded signal unit do not correspond to a corresponding signal unit in the memory the particular signal unit is being registered by means of a specific signal in a register unit.

An apparatus includes a reception processing unit configured to output a frequency division multiplexed signal obtained from a transmission signal transmitted over the wired communication network, an output control unit configured to output, in a case that apparatus identifying data matches signal specifying data, a frequency band specifying data indicating a frequency band corresponding to the signal specifying data, the apparatus identifying data being for requesting signal quality degradation, and the signal specifying data specifying a carrier signal requesting signal quality degradation among a plurality of carrier signals included in the frequency division multiplexed signal, a disturbing signal generation unit configured to generate a disturbing signal in a frequency band corresponding to the frequency band specifying data output by the output control unit, and a multiplexing unit configured to multiplex the frequency division multiplexed signal and the disturbing signal to output.