H - Electricity – 03 – H
Patent
H - Electricity
03
H
H03H 21/00 (2006.01) G10L 21/02 (2006.01) H03G 3/00 (2006.01) H03H 11/04 (2006.01) H04B 1/62 (2006.01) H04R 3/00 (2006.01)
Patent
CA 2524162
A signal enhancement system improves the understandability of speech or other audio signals. The system reinforces selected parts of the signal, may attenuate selected parts of the signal, and may increase SNR. The system includes delay logic, a partitioned adaptive filter, and signal reinforcement logic. The partitioned adaptive filter may track and enhance the fundamental frequency and harmonics in the input signal. The partitioned filter output signals may approximately reproduce the input signal, delayed by an integer multiple of the period of the fundamental frequency of the input signal. The reinforcement logic combines the input signal and the filtered signals to produce an enhanced output signal.
Un système de rehaussement de signaux améliorent l'intelligibilité de signaux vocaux et d'autres signaux audio. Le système renforce des parties choisies du signal, peut atténuer des parties choisies du signal et peut hausser le rapport signal-bruit. Le système comprend un circuit logique de retard, un filtre adaptatif cloisonné et un circuit logique de renforcement du signal. Le filtre adaptatif cloisonné peut suivre et rehausser la fréquence fondamentale et les harmoniques du signal d'entrée. Les signaux de sortie du filtre cloisonné peuvent reproduire approximativement le signal d'entrée, retardé par un multiple intégré de la période de fréquence fondamentale du signal d'entrée. Le circuit logique de renforcement combine le signal d'entrée et les signaux filtrés afin de produire un signal de sorti rehaussé.
Giesbrecht David
Hetherington Phillip
Nongpiur Rajeev
Harman Becker Automotive Systems-Wavemakers Inc.
Qnx Software Systems Co.
Ridout & Maybee Llp
LandOfFree
Periodic signal enhancement system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Periodic signal enhancement system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Periodic signal enhancement system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1411489