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公开(公告)号：AT492073T
公开(公告)日：2011-01-15
申请号：AT01989668
申请日：2001-12-27
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： LATTARD DIDIER , VARREAU DIDIER , PIAGET BERNARD , LAUGEOIS MARC
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.
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公开(公告)号：DE69940751D1
公开(公告)日：2009-05-28
申请号：DE69940751
申请日：1999-09-09
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： BOULANGER CHRISTOPHE , OUVRY LAURENT , PIAGET BERNARD , FORT CHARLES
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公开(公告)号：DE69909516T2
公开(公告)日：2004-04-15
申请号：DE69909516
申请日：1999-12-21
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： BOULANGER CHRISTOPHE , OUVRY LAURENT , PIAGET BERNARD , LATTARD DIDIER
IPC: H04B1/707 , H04J13/00 , H04L27/233
Abstract: A method for receiving spectrum spreading signals using a Doppler-effect frequency-shift correction generates a corrective signal based on an estimation of a modulation period related to the Doppler effect detected in a preamble portion of a received signal. The corrective signal is used for correcting an information portion of the received signal. Base band digital signals are operated upon by using the DOT and CROSS components.
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公开(公告)号：FR2770059B1
公开(公告)日：1999-11-19
申请号：FR9713238
申请日：1997-10-22
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： LATTARD DIDIER , LEQUEPEYS JEAN RENE , VARREAU DIDIER , PIAGET BERNARD
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公开(公告)号：CA2191551A1
公开(公告)日：1997-06-05
申请号：CA2191551
申请日：1996-11-28
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： LATTARD DIDIER , LEQUEPEYS JEAN-RENE , PIAGET BERNARD , DANIELE NORBERT
Abstract: Digital circuit for differential receiver of direct sequence spread spectrum signals. 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 circuit (90). Several circuits of this type can be connected in cascade. Application to wireless or radio communications.
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Patent Agency Ranking
公开(公告)号：DE3169513D1
公开(公告)日：1985-05-02
申请号：DE3169513
申请日：1981-05-15
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： DUBUIS JEAN-CHARLES , MARTIN MICHEL , PIAGET BERNARD , PIQUARD JEAN-FRANCOIS , VACHER JACQUES
Abstract: An echography device with dynamic focusing and sectorial scanning, comprising a transmitting portion (16) and a receiving portion (18) constituting piezoelectric transducers (4), juxtaposed in a form of a linear bar (2), each transducer (4) being associated with a delay line (26,32), the delays applied when a wave is being received being determined as a function of a reference dependent on the delays when the wave is being retransmitted and stored in a digital memory (34), the said reference being fed into a frequency adjustable oscillator (42) associated with a servo-device (38, 56, 54) through a computer.
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公开(公告)号：FR2482732A1
公开(公告)日：1981-11-20
申请号：FR8011109
申请日：1980-05-19
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： DUBUIS JEAN-CHARLES , MARTIN MICHEL , PIAGET BERNARD , PIQUARD JEAN-FRANCOIS , VACHER JACQUES
Abstract: An echography device with dynamic focusing and sectorial scanning, comprising a transmitting portion (16) and a receiving portion (18) constituting piezoelectric transducers (4), juxtaposed in a form of a linear bar (2), each transducer (4) being associated with a delay line (26,32), the delays applied when a wave is being received being determined as a function of a reference dependent on the delays when the wave is being retransmitted and stored in a digital memory (34), the said reference being fed into a frequency adjustable oscillator (42) associated with a servo-device (38, 56, 54) through a computer.
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公开(公告)号：FR3104251A1
公开(公告)日：2021-06-11
申请号：FR1913940
申请日：2019-12-09
Applicant: COMMISSARIAT ENERGIE ATOMIQUE , DAVEY BICKFORD
Inventor： BIARD LIONEL , PIAGET BERNARD , DESCHARLES MÉLANIE , BERG VINCENT , GUYON FRANCK
Abstract: Détonateur électronique sans fil (200) comportant une source d’énergie primaire (230) et au moins un module fonctionnel (250), un commutateur de mise sous tension (240), disposé entre la source d’énergie primaire et le module fonctionnel pour connecter ou déconnecter le module fonctionnel (250) et la source d’énergie primaire (230), et un module de commande (210) du commutateur de mise sous tension comportant un récepteur optique (220) pour détecter et démoduler un signal lumineux (LU) émis par une console de commande (100) et générer un signal de commande en fonction du signal lumineux (LU) démodulé pour au moins piloter le commutateur de mise sous tension (240) ; système de détonation sans fil (10) comportant un tel détonateur électronique sans fil (200) et une console de commande (100) configurée pour émettre un signal lumineux (LU), et procédé d’activation d’un tel détonateur électronique sans fil. Figure pour l’abrégé : Fig. 1
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公开(公告)号：FR2783113B1
公开(公告)日：2006-08-04
申请号：FR9811087
申请日：1998-09-04
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： BOULANGER CHRISTOPHE , LEQUEPEYS JEAN RENE , PIAGET BERNARD , LIONTI ROSELINO
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公开(公告)号：DE69828250D1
公开(公告)日：2005-01-27
申请号：DE69828250
申请日：1998-10-20
Applicant: COMMISSARIAT ENERGIE ATOMIQUE
Inventor： LATTARD DIDIER , LEQUEPEYS JEAN-RENE , VARREAU DIDIER , PIAGET BERNARD
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