Portable wireless communication device

H - Electricity – 04 – B

Patent

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Details

H04B 10/10 (2006.01) G08B 5/22 (2006.01) H04Q 7/20 (2006.01)

Patent

CA 2172249

A portable communication device (20) which also has an infrared transceiver. A portable communication device (20) can automatically establish infrared communication sessions with another portable communication device or desktop computer (40) having an infrared transceiver (42). The portable communication device (20) and the other device may exchange textual and graphical information, as well as the current time (24), and then reconcile the newly received information with that information in possession before the communication session began. Multiple portable communication devices and computers may communicate, while conserving battery power, using a time division multiplexing scheme where the infrared transceivers are active during short, periodic time slots. Multiple communication session may overlap in time as long as they are not active during the same time slot.

Dispositif de communication portatif (20) également doté d'un émetteur/récepteur à infrarouge capable d'établir automatiquement des sessions de communication à infrarouge avec un autre dispositif de communication portatif ou un ordinateur de bureau (40) présentant un émetteur/récepteur à infrarouge (42). Ce dispositif de communication portatif (20) et l'autre dispositif peuvent échanger des informations textuelles et graphiques, ainsi que l'heure (24) en cours, et harmonisent les dernières informations reçues avec les informations en leur possession avant que la session de communication ne commence. De multiples dispositifs de communication et ordinateurs peuvent communiquer tout en économisant l'énergie des piles grâce à un système de multiplexage en temps partagé dans lequel les émetteurs/récepteurs à infrarouge sont actifs pendant de brefs intervalles de temps périodiques. Les sessions de communications multiples peuvent se chevaucher dans le temps dans la mesure où elles ne sont pas actives dans le même intervalle de temps.

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