Abstract: A data processing method in a network on chip formed of a plurality of processors configured to communicate between one another, and at least one network controller configured to initialize communications in the network, the method including: receiving and storing in a memory by a first processor, one or more credit management configuration programs received from the network controller, and establishing a first communication between at least said first processor and at least one second processor.

Abstract: At transmission, the data to be transmitted is divided into N data blocks, these N blocks are processed in parallel in N M-ary orthogonal keying (MOK) modulation channels, each modulation using a group of spread codes, each channel emitting a signal. All of these signals are transmitted in series. At reception, the signal received is processed in N M-ary orthogonal keying (MOK) demodulation channels, and the blocks obtained are grouped together in series.

Abstract: The invention relates to a device for exchanging digital data between several sources and at least one hub in a CDMA system, characterised in that it comprises a number n of digital transmission/reception circuits (1) installed in parallel, each circuit (1) comprising a transmitter (2i) comprising means of generating an integer number Nc of codes that will be used for spectral spreading of data to be transmitted and a receiver (4i) comprising means (46, 48) of detecting the access of new sources to the CDMA system transmission channel and means (49) of generating synchronisation signals and power control signals corresponding to each detected new source.

Abstract: The invention relates to a device for exchanging digital data between several sources and at least one hub in a CDMA system, characterised in that it comprises a number n of digital transmission/reception circuits (1) installed in parallel, each circuit (1) comprising a transmitter (2i) comprising means of generating an integer number Nc of codes that will be used for spectral spreading of data to be transmitted and a receiver (4i) comprising means (46, 48) of detecting the access of new sources to the CDMA system transmission channel and means (49) of generating synchronisation signals and power control signals corresponding to each detected new source.

Abstract: The present invention relates to a digital transmitting/receiving circuit (1) intended to be mounted on at least one source and on at least one concentrator exchanging binary symbols with the said sources, the said circuit (1) comprising a transmitter (2) capable of transmitting the said binary symbols and a receiver (4) capable of receiving symbols transmitted by a source, the circuit (1) being characterized in that the transmitter (2) comprises a first module (20) intended to generate at least one binary code for effecting the spectral spreading of symbols to be transmitted and a second module (22) intended to generate at least one internal clock signal for synchronizing the reception of symbols transmitted by a source, and in that the said receiver comprises means (46, 48) for detecting new sources of transmission and means (49) for generating synchronization signals and power control signals corresponding to each new source detected.

Abstract: The invention relates to a device for exchanging digital data between several sources and at least one hub in a CDMA system, characterized in that it comprises a number n of digital transmission/reception circuits (1) installed in parallel, each circuit (1) comprising a transmitter (2i) comprising means of generating an integer number Nc of codes that will be used for spectral spreading of data to be transmitted and a receiver (4i) comprising means (46, 48) of detecting the access of new sources to the CDMA system transmission channel and means (49) of generating synchronization signals and power control signals corresponding to each detected new source.

Abstract: A method and an apparatus for transmitting data using multi-MOK modulation/demodulation transmission process corresponding to transmitter and receiver are disclosed. At transmission, the data to be transmitted is divided into N data blocks. The N blocks are processed in parallel in N M-ary orthogonal keying (MOK) modulation channels, each modulation using a group of spread codes, each channel emitting a signal, all these signals (S) are transmitted in series. At reception, the signal received (R) is processed in N MOK demodulation channels and the blocks obtained are grouped together in series.

Abstract: At transmission, the data to be transmitted is divided into N data blocks, these N blocks are processed in parallel in N M-ary orthogonal keying (MOK) modulation channels, each modulation using a group of spread codes, each channel emitting a signal, all these signals (S) are transmitted in series. At reception, the signal received (R) is processed in N M-ary orthogonal keying (MOK) demodulation channels and the blocks obtained are grouped together in series.

Abstract: The invention relates to a data processing method in a network on chip formed of a plurality of resources (310,320) capable of communicating with one another and of processing and at least one network controller (300) capable of initialising the communications in the network by initialisation of a credit system, the process comprising at least one communication step between at least one first resource (310) and at least one second resource (320), said communication step comprising: at least one emission by the first resource of a first plurality of special data or “credits” destined for the second resource, at least one receipt by the first resource of a first plurality of data to process sent by the second resource, the emission by the second data resource destined for first resource being authorised following the receipt by the second resource of credits emitted by the first resource.

Abstract: A receiver for transmission and parallel interference has multiple access interference suppression stages having K channels, each comprising a correlation device corresponding to a particular pseudorandom sequence and interference generation and suppression device. Each stage delivers to the following stage signals at least partly freed from multiple access interferences. A decision stage receives the signals from the channels of the preceding suppression stage. Each decision stage has a correlation device corresponding to one of the pseudorandom sequences and decision device to deliver data. Devices for producing synchronization signals can control the interference suppression and the decision device. The devices producing the synchronization signals have components placed in the channels of the final stage.

Abstract: A method of processing a pulse response with an adaptive threshold and corresponding receiver. According to the method, an adaptive threshold is calculated that is a function of a maximum reached by the pulse response, noise, and a coefficient adjustable between 0 and 1. The processing only comes into operation for signals that exceed this threshold. Such a method may find application notably to digital radio-communications with spread spectrum.

Abstract: The invention relates to a device for exchanging digital data between several sources and at least one hub in a CDMA system, characterised in that it comprises a number n of digital transmission/reception circuits (1) installed in parallel, each circuit (1) comprising a transmitter (2i) comprising means of generating an integer number Nc of codes that will be used for spectral spreading of data to be transmitted and a receiver (4i) comprising means (46, 48) of detecting the access of new sources to the CDMA system transmission channel and means (49) of generating synchronisation signals and power control signals corresponding to each detected new source.

Abstract: The present invention relates to a digital transmitting/receiving circuit (1) intended to be mounted on at least one source and on at least one concentrator exchanging binary symbols with the said sources, the said circuit (1) comprising a transmitter (2) capable of transmitting the said binary symbols and a receiver (4) capable of receiving symbols transmitted by a source, the circuit (1) being characterized in that the transmitter (2) comprises a first module (20) intended to generate at least one binary code for effecting the spectral spreading of symbols to be transmitted and a second module (22) intended to generate at least one internal clock signal for synchronizing the reception of symbols transmitted by a source, and in that the said receiver comprises means (46, 48) for detecting new sources of transmission and means (49) for generating synchronization signals and power control signals corresponding to each new source detected.

Abstract: In order to obtain the signals necessary for the formation of an interference signal corresponding to the multiple access noise, use is made both of the non-coherent part of the receiver, namely the differential demodulation device, and the coherent part thereof, namely the two matched filters performing the correlations. This gives a reliable, precise, clock symbol signal (Hs) and also the reconstituted data (D(I), D(Q)) and the amplitudes of the signals in the two channels (A(I), A(Q)). Formation then takes place of the correction signal by respreading the data (D(I), D(Q)) and the weighting the respread data by the amplitudes (A(I), A(Q)).

Abstract: A circuit able to operate either as a direct sequence spread spectrum differential signal emitter, or as a generator of interference signals corresponding to multiple access noise. The circuit employs a clock signal formation and data processing module, a differential coding module, a multiplexing module, and a direct sequence spread module when operating as a spread spectrum emitter, and has an additional amplification-inversion module for use when generating an interference signal.

Abstract: A method for processing a direct sequence spread spectrum signal, and a receiver for performing the method. A correlation is preformed between a received signal and the direct sequence used to determine peaks of different amplitudes. The spectrum of the information corresponding to the highest amplitude peak is respread using the direct sequence. The respread signal is subtracted from the received signal to create a new signal. This process is reiterated on the new signal until all of the peaks have been exhausted.

Abstract: A receiver for transmission and parallel interference has multiple access interference suppression stages having K channels, each comprising a correlation device corresponding to a particular pseudorandom sequence and interference generation and suppression device. Each stage delivers to the following stage signals at least partly freed from multiple access interferences. A decision stage receives the signals from the channels of the preceding suppression stage. Each decision stage has a correlation device corresponding to one of the pseudorandom sequences and decision device to deliver data. Devices for producing synchronization signals can control the interference suppression and the decision device. The devices producing the synchronization signals have components placed in the channels of the final stage.