A multi-channel digital transmitter and receiver

H - Electricity – 03 – H

Patent

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Details

H03H 17/02 (2006.01) H04B 1/04 (2006.01) H04B 1/16 (2006.01) H04J 4/00 (2006.01)

Patent

CA 2117920

An apparatus is provided for use in a multi-channel digital transmitter and receiver. A filtering process is accomplished by conditioning portions of a digitized signal processing by integrating, taking the difference of, and multiplying portions of the digitized signal. The filtering process may be used in conjunction with a receiving process to generate a digitized channel signal (166, 168, 170, 172) by conditioning (132, 134, 136, 138) the digitized signal (128) and subsequently Fourier transforming (148) the conditioned portions of the digitized signal. Alternatively, the filtering process may be used in conjunction with a transmitting process by inverse Fourier transforming (324) a plurality of digitized information signals (300, 302, 304, 306) to be transmitted, generating a composite digitized signal (352), and subsequently conditioning the composite digitized signal (358).

Dispositif destiné à un émetteur-récepteur numérique multicanaux. Un processus de filtrage permet de conditionner des parties du traitement d'un signal numérisé par intégration, soustraction et multiplication de parties dudit signal. On peut utiliser le processus de filtrage conjointement avec un processus de réception afin de produire un signal de canal numérisé (166, 168, 170, 172) en conditionnant (132, 134, 136, 138) le signal numérisé (128) puis en appliquant la transformée de Fourier (148) aux parties conditionnées du signal numérisé. Ou encore, on peut utiliser le processus de filtrage conjointement avec un processus de transmission en appliquant la transformée inverse de Fourier (324) à un certain nombre de signaux d'information numérisés (300, 302, 304, 306) à transmettre, en produisant un signal numérisé composite (352) puis en conditionnant ce signal numérisé composite (358).

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