A device for measuring the quality of a connecting and transmission, 1984, 2002, including such a device

摘要

P the invention relates to devices for measuring the quality of a link, 1984. / p & & p & the device according to the invention is of the type comprising a determination of the error rate, periodic assessment of the parity of a predetermined number of bits, simultaneously in the transmission and reception, it is feature in that the synchronism of this evaluation in the transmission and reception is ensured by the recognition of a sequence of composition randomly constituted by the binary data flow itself - the same way, the parity being transmitted by an auxiliary modulation independent to that of the flow of information. / p & & p & application has all the transmission, 2002, 1984. / p