H - Electricity – 03 – D
Patent
H - Electricity
03
D
H03D 3/00 (2006.01) H04L 27/233 (2006.01) H04L 27/00 (2006.01)
Patent
CA 2078636
For processing a multiplied signal into a modified signal in a demodulator circuit, an adder (34) sums up a first, a second, and a third processed signal into a sum signal for use as the modified signal. A first processing circuit (31) processes the multiplied signal into the first processed signal. A second processing circuit (32) processes the multiplied signal into the second processed signal in accordance with a conjugate complex clock and a complex local signal. A third signal processing circuit (33) processes the multiplied signal into the third processed signal in accordance with a complex clock and a conjugate complex local signal. The complex clock signal represents a first complex number. The complex local signal represents a second complex number. The conjugate complex clock signal represents a complex conjugate of the first complex number. The conjugate complex local signal represents a complex conjugate of the second complex number.
Sommateur permettant de modifier un signal multiplié, dans un circuit de démodulateur. Un sommateur (34) additionne un premier, un deuxième et un troisième signal, lesquels sont traités pour obtenir un signal de sommation qui devient le signal modifié. Un premier circuit de traitement (31) transforme le signal multiplié en premier signal traité. Un deuxième circuit de traitement (32) transforme le signal multiplié en second signal traité en fonction d'une horloge complexe et d'un signal local complexe. Un troisième circuit de traitement (33) transforme le signal multiplié en troisième signal traité en fonction d'une horloge complexe et d'un signal local complexe. Le signal d'horloge complexe représente un premier nombre complexe. Le signal local complexe représente un deuxième nombre complexe. Le signal d'horloge complexe représente un conjugué complexe du premier nombre complexe. Le signal local complexe représente un conjugué complexe du deuxième nombre complexe.
Corporation Nec
Smart & Biggar
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