| Patent Number |
Title Of Patent |
Date Issued |
| RE41107 |
Method of receiving CDMA signals with parallel interference suppression, and corresponding stage |
February 9, 2010 |
| A method of parallel suppression of interference, and corresponding stage and receiver is disclosed according to the invention, parallel suppression of interference is carried out starting from the signals selected by a maximum likelihood criterion based on the calculation of a metri |
| 7633997 |
Digital data exchange device in a CDMA system |
December 15, 2009 |
| 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 ( |
| 7391806 |
Digital data exchange device in a CDMA system |
June 24, 2008 |
| 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 ( |
| 6999502 |
Method for receiving CDMA signals with synchronization resulting from delayed double multiplicat |
February 14, 2006 |
| The present invention relates to a method for receiving CDMA signals with synchronization being obtained through double delayed multiplication, and an associated receiver.According to the invention, the correlation signal undergoes double delayed multiplication. Synchronization is establ |
| 6987796 |
Method for receiving spectrum spread signals with frequency offset correction |
January 17, 2006 |
| A method for receiving spectrum spreading signals with frequency shift correct in which the modulation period related to the Doppler effect is estimated by using a preamble and a correction signal is elaborated, the signal transmitting the information is then corrected by this correction |
| 6621856 |
Method of receiving CDMA signals with parallel interference suppression, and corresponding stage |
September 16, 2003 |
| A method of parallel suppression of interference, and corresponding stage and receiver is disclosed according to the invention, parallel suppression of interference is carried out starting from the signals selected by a maximum likelihood criterion based on the calculation of a metric an |
| 6347112 |
Circuit for direct sequence spread spectrum digital transmissions with generation of an interfer |
February 12, 2002 |
| 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 |
| 6115413 |
Process for the transmission of information by pulse response and the corresponding receiver |
September 5, 2000 |
| A differential receiver which receives a signal corresponding to transmission of a carrier modulated by symbols S.sub.k, where k is an integer designating an order of the symbol, each symbol S.sub.k has a duration Ts and carries information, and the symbols S.sub.k have been multipli |
| 5870425 |
Differential receiver of direct sequence spread spectrum signals |
February 9, 1999 |
| A Differential receiver of direct sequence spread spectrum signals, wherein, the intermediate frequency stage comprises N filtering and amplifying channels in N separate bands. The amplification of a channel is adjusted so that the power levels delivered by the channels correspond to |
| 5799035 |
Digital circuit for differential receiver for direct sequence spread spectrum signals |
August 25, 1998 |
| The circuit has two parallel channels for the processing of two components in phase (I) and in quadrature (Q). Each channel has filtering means (50(I)) and delay means (60(I)). The circuit also incorporates a multiplication circuit (70), an integration circuit (80) and a programming |
| 4467237 |
Multielement ultrasonic probe and its production process |
August 21, 1984 |
| Multielement ultrasonic probe production process connecting a piezoelectric ceramic block incorporating an upper conductive layer and a lower layer to two printed circuits having a metallized face and a face provided with conductive strips, electrically connecting one of the conductive s |
| 4398325 |
Process for producing ultrasonic transducers having complex shapes |
August 16, 1983 |
| Process for producing complex ultrasonic transducers comprising cutting out a piezoelectric ceramic block along lines which are parallel to one another by means of at least two rows of channels making it possible to produce elementary transducers and selecting the cut elements so as to |
