Abstract: The method includes, at a first clock cycle:—obtaining (202) new requests by the processing stage;—supplying (210) by the processing stage at least one of the new requests;—placing on standby (212) by the processing stage at least one further new request, hereinafter referred to as a standby request. The method further includes, at a second clock cycle following the first clock cycle:—obtaining (202) at least one new request by the processing stage;—selecting (208) by the processing stage, from the standby request(s) and the new request(s), at least one request;—la supplying (210) the selected request(s) by the processing stage.

Abstract: The method includes:—pre-compiling a source code including determining (212), in the source code, the presence of one or a plurality of array computations on one or a plurality of arrays, referred to as input arrays, the result whereof is assigned to an array, referred to as a result array, and modifying (214) the source code according to the array computation(s) for which the presence has been determined; and—compiling (238) the modified source in machine code intended to be executed by a computer system, referred to as a target computer system, having a processor, the compiling (238) of the modified source code including compiling the command instructions in instructions which, when executed by the processor of the target computer system, command a specialized electronic device, different from the processor, to carry out each array computation detected.

Abstract: The method includes: —pre-compiling a source code including determining (212), in the source code, the presence of one or a plurality of array computations on one or a plurality of arrays, referred to as input arrays, the result whereof is assigned to an array, referred to as a result array, and modifying (214) the source code according to the array computation(s) for which the presence has been determined; and —compiling (238) the modified source in machine code intended to be executed by a computer system, referred to as a target computer system, having a processor, the compiling (238) of the modified source code including compiling the command instructions in instructions which, when executed by the processor of the target computer system, command a specialised electronic device, different from the processor, to carry out each array computation detected.

Abstract: The method includes, at a first clock cycle: obtaining (202) new requests by the processing stage; supplying (210) by the processing stage at least one of the new requests;—placing on standby (212) by the processing stage at least one further new request, hereinafter referred to as a standby request. The method further includes, at a second clock cycle following the first clock cycle:—obtaining (202) at least one new request by the processing stage;—selecting (208) by the processing stage, from the standby request(s) and the new request(s), at least one request;—la supplying (210) the selected request(s) by the processing stage.

Abstract: The present invention relates to a method for measuring radio channel quality in a radio communication system. In the method a modulated signal is received over a communication channel. The modulated signal has been modulated by using modulation parameters. A decoder decodes (305) the modulated signal and forms decoded data. The decoder creates (306) a decoder performance indicator (PS) that depends on the decoded data. Then a radio channel quality indicator (RCQI) is created, the radio channel quality indicator being essentially independent of the modulation parameters.

Abstract: This demodulator for signals transmitted by bursts of data packets and the corresponding method comprise receiving from a separate processor identifiers of bursts to be processed, filtering the signals to retrieve the bursts whose identifiers were received, processing said retrieved bursts, receiving from said separate processor timing information associated with the identifiers of bursts to be processed; and power management to drive at least some components of said demodulator between an idle state and an active state depending upon said timing information.

Abstract: This method for receiving a data stream transmitted over several radiofrequency channels each with a different frequency, comprises scanning the bandwidth to identify available radiofrequency channels, determining a quality indicator for each available radiofrequency channel and selecting a channel for receiving the data stream depending upon said quality indicators. The method further comprises determining a refreshing period for the quality indicator of each available channel and weighting every determined refreshing period depending on the value of the quality indicator of the currently received channel.

Abstract: This method is for processing data frames (Fi) received over a communication channel, each data frame (Fi) comprising a data section (Si) for forming part of a data table and location information (Mi) associated with the data section and designating a location of said section within the data table. The data table and a metadata table (MT) are built and stored as the data frames are received, to be made available to a host processor (2). The method comprises the following steps for each received data frame: —buffering (10, 12) the data section of the received frame and the associated location information; —determining (14) an address for the data section in a table memory (8) based on the location information; —writing the data section at the determined address into the table memory; and—writing an entry of a metadata table, wherein said entry comprises the location information.

Abstract: This method for receiving a data stream transmitted over several radiofrequency channels each with a different frequency, comprises scanning the bandwidth to identify available radiofrequency channels, determining a quality indicator for each available radiofrequency channel and selecting a channel for receiving the data stream depending upon said quality indicators. The method further comprises determining a refreshing period for the quality indicator of each available channel and weighting every determined refreshing period depending on the value of the quality indicator of the currently received channel.

Abstract: The present invention relates to a method for measuring radio channel quality in a radio communication system. In the method a modulated signal is received over a communication channel. The modulated signal has been modulated by using modulation parameters. A decoder decodes (305) the modulated signal and forms decoded data. The decoder creates (306) a decoder performance indicator (PS) that depends on the decoded data. Then a radio channel quality indicator (RCQI) is created, the radio channel quality indicator being essentially independent of the modulation parameters.

Abstract: This demodulator for signals transmitted by bursts of data packets and the corresponding method comprise receiving from a separate processor identifiers of bursts to be processed, filtering the signals to retrieve the bursts whose identifiers were received, processing said retrieved bursts, receiving from said separate processor timing information associated with the identifiers of bursts to be processed; and power management to drive at least some components of said demodulator between an idle state and an active state depending upon said timing information.

Abstract: A method for receiving a signal including bursts of data transmitted over several channels, includes determining (6) a reference channel and receiving (8) the bursts from the reference channel, characterized in that it also includes monitoring (10) faults in the reception of the data from the reference channel and on detection of a fault, receiving (14) the same data from another channel.

Abstract: The invention concerns the decryption of encrypted data using a host-processor and a co-processor. The method for decrypting data using the host-processor and at least one co-processor. The method comprises the step of providing the host-processor with a set of encrypted coherent data. The encrypted data is segmented into segments by the host-processor. The co-processor is provided with a first part of the segments from the set, decrypting the first part of the segments. The host-processor decrypting a second part of the segments from the set and delivering decrypted data comprising a combination of the decrypted first and second parts.

Abstract: This invention concerns a method for receiving a data stream comprising data sections spread on data packets. An error correction code is associated with and transmitted with every data section. The method comprises the steps of receiving the packets of the data stream by an interface module and transmitting the data stream, packet-by-packet, from the interface module to a processing module. The method also comprises that upon reception of data by the interface module, incrementally computing an error correction code for the current data section and when the entire section has been received, verifying the incrementally computed error correction code to deliver a section validity indicator.

Abstract: The method of estimating the transfer function of a varying transmission channel for a multicarrier signal (A) is performed on the basis of a frequency-domain digital signal (Y) corresponding to the received signal, and it comprises a step (6) of calculating the value of a first estimated transfer function (C1) for the transmission channel. The method is characterized in that it further comprises: a step (8) of calculating the value of the autocorrelation function (R(C1)) of said first estimated transfer function (C1) enabling the contribution from noise to be separated out; a step (10) of determining a noise-removal filter (F) from said autocorrelation function (R(C1)); and a step (12) of applying said noise-removal filter (F) to said first estimated transfer function (C1) in order to deliver a second estimated transfer function (C2) of the transmission channel from which noise has been removed. The invention is particularly applicable to receiving digital TV signals.