Abstract: A system includes a transmitter configured to emit a signal. The system includes a control system, configured to determine a geographical mitigation region of a satellite, determine the transmitter is located within the geographical mitigation region, and modify an operation of the transmitter to mitigate interference with an observation sensing activity of the satellite.

Abstract: In connection with an RF communication system, exemplary aspects involve a method for use in a communication system in which a first system (e.g., 802.11) that is asynchronously based and which is susceptible to interference from a second system (e.g., synchronous-based LTE-CV2X). Such interference is due to the frequency spectrum used by the first and second systems overlapping. To mitigate interference issues, example methods spreads out the times for messages in the first system, based on information concerning occupancy of the channel, and transmitting them relative to the end of a cycled transmission allocated for use by the second system.

Abstract: In connection with an RF communication system, exemplary aspects involve a method for use in a communication system in which a first system (e.g., 802.11) that is asynchronously based and which is susceptible to interference from a second system (e.g., synchronous-based LTE-CV2X). Such interference is due to the frequency spectrum used by the first and second systems overlapping. To mitigate interference issues, example methods spreads out the times for messages in the first system, based on information concerning occupancy of the channel, and transmitting them relative to the end of a cycled transmission allocated for use by the second system.

Abstract: A method for creating variants of a DTV service, a method which is simpler than the method defined in GBS0600, and the method can handle all use-case scenarios for simulcast linking in a way almost equal to that defined in GBS0600. The method introduces switching between a mother service and a variant service, the mother service being a default service to which a receiver should tune, and the variant service being a service selected at a receiver side and linked to the mother service by a service link defining a switching relation between the mother service and the variant service. The method is defined by including switching information into the data-stream of the mother service, receiving the mother service data-stream, reading the switching information, and switching from the mother service to the variant service accordingly. The switching information can be carried in EPG data and thus utilize existing data structures. EPG data of the mother service, e.g.

Abstract: A conditional access system comprising a host configured to receive an incoming data stream and to supply this incoming data stream to a conditional access module, the conditional access module being configured to process the incoming data stream and to provide a corresponding output stream to the host, characterized in that the host and the conditionalaccess module are configured to engage in an authentication protocol with each other upon detection of a code embedded in the output stream.

Abstract: The invention relates to a transmission system (10) comprising a transmitter (12) and a receiver (14). The transmitter (12) is arranged for transmitting a plurality of signals (13), e.g. radio and/or television signals. The plurality of signals (13) comprise mutually corresponding signals, e.g. analog and digital signals of the same channel or program. Alternatively, the mutually corresponding signals may comprise standard definition and high definition signals of the same channel or program. The receiver (14) is arranged for receiving at least part of said plurality of signals (13). The transmitter (12) is arranged for transmitting information (15) identifying said mutually corresponding signals and the receiver (14) is arranged for receiving said information (15). The receiver (14) comprises a selector (16) for selecting on basis of said information (15) at least one (17) of the mutually corresponding signals. In the way, the receiver (14) can automatically select the most appropriate signal (17), e.g.

Abstract: The data processing circuit contains a non-volatile memory. Error correction is provided for computing individual correction data for correcting an error in an individual data unit in the non-volatile memory. The individual correction data is computed from a combination of a plurality of data units read from the non-volatile memory. A correction data store stores the individual correction data. Memory access is signaled to the correction data store, which outputs data corrected according to the correction data when said individual data unit is read. The circuit comprises error correction trigger means for triggering the error correction computing means to perform said computing independent of reading of the individual data from the non-volatile memory.