Digital broadcasting system and data processing method in...

H - Electricity – 04 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04N 7/015 (2006.01) H04N 7/00 (2006.01)

Patent

CA 2703846

A receiving system and data processing method therein are disclosed, by which mobile service data is received and processed. The receiving system comprises a tuner, a filter, an IQ mismatch processor, a gain controller and a demodulator. The tuner tunes radio frequency (RF) signals of a specific channel which includes mobile service data and main service data, converts the tuned RF signals into zero IF signals and outputs the converted zero IF signals. The filter performs low pass filtering for the zero IF signals output from the tuner. The IQ mismatch processor estimates and compensates IQ mismatch generated in the zero IF signals filtered by the filter. The gain controller controls gain of the zero IF signals by estimating a gain error of the zero IF signals output from the IO mismatch processor. The demodulator performs carrier recovery and timing recovery by receiving the zero IF signals output from the IQ mismatch processor. The demodulator performs carrier recovery and timing recovery by receiving the zero IF signals output from the gain controller.

L'invention concerne un système de réception et un procédé de traitement de données, permettant la réception et le traitement de données de service mobile. Le système de réception comprend un syntoniseur, un filtre et un processeur de défaut d'adaptation en phase/quadrature de phase (IQ), un contrôleur de gain et un démodulateur. Le syntoniseur assure la syntonisation de signaux radiofréquence (HF) d'un canal spécifique qui comporte des données de service mobile et des données de service principal, convertit les signaux HF syntonisés en signaux FI de niveau zéro et fournit des signaux FI convertis de sortie de niveau zéro. Le filtre assure un filtrage passe bande pour les signaux FI de sortie de niveau zéro issus du syntoniseur. Le processeur de défaut d'adaptation IQ estime et compense le défaut d'adaptation IQ produit dans les signaux FI de niveau zéro filtrés par le filtre. Le contrôleur de gain contrôle le gain des signaux FI de niveau zéro en estimant une erreur de gain des signaux FI de sortie de niveau zéro issus du processeur considéré. Le démodulateur assure une récupération de porteuse et d'horloge en recevant les signaux FI de sortie de niveau zéro issus du contrôleur de gain.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Digital broadcasting system and data processing method in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital broadcasting system and data processing method in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital broadcasting system and data processing method in... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1616337

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.