H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 3/06 (2006.01) G10L 19/00 (2006.01) H04L 7/04 (2006.01) H04L 25/49 (2006.01)
Patent
CA 2724909
A system is provided for transmitting information through a speech codec (in- band) such as found in a wireless communication network. A modulator transforms the data into a spectrally noise- like signal based on the mapping of a shaped pulse to predetermined positions within a modulation frame, and the signal is efficiently encoded by a speech codec. A synchronization sequence provides modulation frame timing at the receiver and is detected based on analysis of a correlation peak pattern. A request/response protocol provides reliable transfer of data using message redundancy, retransmission, and/or robust modulation modes dependent on the communication channel conditions.
La présente invention concerne un système pour la transmission d'information via un codec (intrabande) tel qu'un codec présent sur un réseau de communication sans fil. Un modulateur transforme les données en un signal du type de bruit à spectre basé sur le mappage d'une impulsion formée en des positions prédéterminées à l'intérieur d'une trame de modulation, et le signal est efficacement codé par un codec de la parole. Une séquence de synchronisation fournit la synchronisation de trame de modulation au niveau du récepteur et est détectée sur la base d'une analyse d'un motif de pics de corrélation. Un protocole de demande/réponse fournit un transfert fiable de données au moyen de redondance, de retransmission et/ou de modes de modulation robuste de messages selon les conditions du canal de communication.
Baik Eugene J.
Duni Ethan R.
Frank Georg
Huang Pengjun
Joetten Christoph A.
Qualcomm Incorporated
Smart & Biggar
LandOfFree
System and method of an in-band modem for data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method of an in-band modem for data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of an in-band modem for data... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1463410