System and apparatus for a direct conversion receiver and...

H - Electricity – 04 – B

Patent

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Details

H04B 1/30 (2006.01) H03C 3/09 (2006.01) H03D 3/00 (2006.01) H04B 1/40 (2006.01) H04L 27/20 (2006.01)

Patent

CA 2416829

A system for transmitting and receiving data is provided. The system includes a direct-conversion receiver that receives a signal modulated on a carrier frequency signal. The direct-conversion receiver includes one or more subharmonic local oscillator mixers. A local oscillator is connected to the direct conversion receiver, and generates a signal having a frequency equal to a subharmonic of the carrier frequency signal. A transmitter is connected to the local oscillator, which uses the local oscillator signal to transmit outgoing data.

L'invention concerne un système d'émission et de réception de données. Le système comprend un récepteur à conversion directe qui reçoit un signal modulé sur un signal de fréquence porteuse. Le récepteur à conversion directe est pourvu d'un ou plusieurs mélangeur(s) d'oscillateur local sous-harmonique. Un oscillateur local est connecté au récepteur à conversion directe et génère un signal dont la fréquence est égale à une sous-harmonique du signal de fréquence porteuse. Un émetteur est connecté à l'oscillateur local qui utilise le signal de ce dernier afin d'émettre des données sortantes.

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