H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 1/00 (2006.01) H04L 1/18 (2006.01)
Patent
CA 2726820
A system is provided for transmitting information through a speech codec (inband) 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.
Linvention concerne un système pour transmettre des informations par un codec de la parole (dans la bande) tel quon le trouve dans un réseau de communication sans fil. Un modulateur transforme les données en un signal de type bruit spectral sur la base de la mise en correspondance dune impulsion mise en forme à des positions prédéterminées dans une trame de modulation, et le signal est encodé efficacement par un codec de la parole. Une séquence de synchronisation, qui procure la synchronisation de trame de modulation au niveau du récepteur, est détectée sur la base de lanalyse dun motif de crête de corrélation. Un protocole de demande/réponse assure un transfert fiable des données à laide dune redondance des messages, dune retransmission et/ou de modes de modulation robustes dépendant des conditions de canal de communication.
Granzow Wolfgang
Huang Pengjun
Joetten Christoph A.
Leung Nikolai K.n.
Pietsch Christian
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-1627014