Digital circuit for differential receiver for direct...

Details Digital circuit for differential receiver for direct... Digital circuit for differential receiver for direct...

H - Electricity

04

B

H04B 1/16 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2191551

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.

'invention est un circuit numérique pour récepteurs différentiels de signaux à spectre étalé en séquence directe. Ce circuit comporte deux canaux parallèles pour le traitement de deux composantes en phase ( I ) et en quadrature ( Q ). Chaque canal est doté d'un filtre ( 50 (I)) et d'un dispositif de retardement ( 60 (I)). Le circuit comprend également un circuit multiplicateur (70) , un circuit intégrateur ( 80 ) et un circuit de programmation ( 90 ). Plusieurs circuits de ce type peuvent être montés en cascade. Application aux communications sans fil ou radio.

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