Automatic gain control circuit and method therefor

H - Electricity – 04 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04N 5/52 (2006.01) H04N 7/015 (2006.01)

Patent

CA 2207288

An AGC circuit of a high definition signal receiver includes a non-coherent AGC signal generator for generating a first AGC signal according to the magnitude of said IF signal, a coherent AGC signal generator for generating a second AGC signal according to the magnitude of the segment synchronizing signal, and a selector for selecting the second AGC signal when the segment synchronizing signal is detected and the first AGC signal when the segment synchronizing signal is not detected and providing them to a tuner/IF demodulator. The amplitude of the received signal is controlled within a short period of time using the non-coherent AGC method having a fast response time before a system is stabilized and the amplitude of the received signal is controlled more correctly using the coherent AGC method after the segment synchronizing signal is detected.

Circuit de CAG pour récepteur de signal haute définition. Comprend un générateur de signal de CAG non cohérent pour produire un premier signal de CAG en tenant compte de la grandeur dudit signal FI, un générateur de signal de CAG cohérent pour produire un deuxième signal de CAG en tenant compte de la grandeur du signal de synchronisation de segments, et un sélecteur pour choisir le deuxième signal de CAG lorsque le signal de synchronisation de segments est détecté et le premier signal de CAG lorsque le signal de synchronisation de segments n'est pas détecté, et les acheminer vers un syntonisateur/démodulateur FI. L'amplitude du signal reçu est commandée à l'intérieur d'une courte période au moyen de la méthode de CAG non cohérent et d'un court délai de réponse avant que le système se stabilise. Elle est commandée plus correctement au moyen de la méthode de CAG cohérent après détection du signal de synchronisation des segments.

LandOfFree

Say what you really think

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

Rating

Automatic gain control circuit and method therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic gain control circuit and method therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic gain control circuit and method therefor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1548891

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