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Thomson Licensing

Kerber, Thierry

Thierry Kerber

Philippe Bordes

Philippe Guillotel

Edouard François

In an emission process for remote sensing, pulse signals () are periodically produced in elementary time windows spaced one pulse period (T) apart, and waves corresponding to those signals are emitted towards remote objects, so as to enable to monitor waves transmitted by those objects upon receiving the emitted waves. The emission of those waves is periodically prevented, according to at least one inhibition period (3T, 5T) proportional to the pulse period and equal to at least three times that pulse period. Parameters are set, suited to producing measurement information on the objects from the wave monitoring, based on at least part of a frequency content of the transmitted waves to which the pulse and inhibition periods contribute. Applications to lidars, radars, active sonars and ultrasound monitoring.

Remote sensing by periodically inhibited pulse signals

Device and method for inserting error correcting codes and for reconstructing data streams, and corresponding products The present invention relates to a device () for inserting error correcting codes into data streams () intended to be sent in packets in a network (), a device () for reconstructing data streams (), and corresponding methods and products. The insertion device comprises a unit () for identifying resynchronization indicators dispersed in the data streams and a unit () for determining successive segments in these streams, the segments forming partitions of the data lying between two consecutive resynchronization indicators. It also comprises a unit () for allocating a set of error correcting codes to each of these segments, these sets of codes having decreasing sizes between any two of the consecutive resynchronization indicators. Preferably, the device also comprises a data interleaving unit ().

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Paris, France

Thierry Kerber