H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 1/00 (2006.01) H04B 1/38 (2006.01)
Patent
CA 2596980
An accessory (102) for a portable communication device (104) includes audio input ports (134) for receiving a differential audio signal having a DC bias (114), a speaker (116) coupled to the audio input ports, and accessory electronics (124) powered by the DC bias. The use of the DC bias of the differential audio signal (114) as a power source enhances the power source capability of the accessory (102).
L'invention se rapporte à un accessoire (102) pour dispositif de communication portable (104) comprenant des points d'accès d'entrée audio (134) destinés à recevoir un signal audio différentiel ayant une polarisation en CC (114), un haut-parleur (116) couplé aux points d'accès d'entrée audio et des éléments électroniques accessoires (124) alimentés par la polarisation en CC. L'utilisation de la polarisation en CC du signal audio différentiel (114) en tant que source d'alimentation améliore la capacité de source d'alimentation de l'accessoire (102).
Gowling Lafleur Henderson Llp
Motorola Inc.
LandOfFree
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