Widex TV-DEX - Page 48

QualityofServiceforWirelessTechnologyintheWidexLinkSystem
WidexLinkwirelesstechnologyenablescommunicationbetweentwopart-
nersofabinauralpairofWidexwirelesshearingaidsandwiththeirmatched
external devices The requirements for the quality of service (QoS) vary
amongthevariouscomponentsandtheirintendeduserscenarios
Duringdailyusetherequirementsonaudiostreamingfrom TV-Controllerto
hearingaidsincludeaBERbetterthan
-
Thecommunicationissimplex
withabitrateofkbitssForremotecontrolcommandstheQoSrequire-
mentsincludeaBERbetterthan
-
ThelowerBERrequirementresults
fromredundanttransmissionsEachkeypressresultsintransmissionsof
datapackagesofwhichonlyoneisneededforasuccessfulcommunication
TherequirementsfromTV-BasetoTV-ControllerincludeaBER betterthan

-
ThecommunicationissemiduplexwithabitrateofMbitssandato-
tallatencyms(includingthelinkfromthe TV-Controllertothehearing
aids)toinsurehighqualityaudiotransmission
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