公开(公告)号：US20240244402A1

公开(公告)日：2024-07-18

申请号：US18289479

申请日：2022-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  RTX A/S Company

Inventor： Darin K. Thompson ,  Graham Wilson ,  Gareth D. Evans ,  Klaus A. Pedersen

IPC: H04W4/08 ,  H04W4/90 ,  H04W84/20

CPC classification number: H04W4/08 ,  H04W4/90 ,  H04W84/20

Abstract: A method implemented in a first wireless unit of a plurality of wireless units of a first group. The method includes determining whether a second wireless unit of the first group is configured as the master of the first group. If the second wireless unit is configured as the master of the first group, the first wireless unit is configured as a slave and the first wireless unit is joined to the first group to communicate with the other wireless units. In addition, if the second wireless unit is not configured as the master of the first group, the first wireless unit is configured as the master of the first group and one of the first group is formed and the first group joined to communicate with the other wireless units. An apparatus is also provided.

公开(公告)号：US20240173578A1

公开(公告)日：2024-05-30

申请号：US18281250

申请日：2022-03-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  RTX A/S Company

Inventor： Darin K. Thompson ,  Graham Wilson ,  Gareth D. Evans ,  Klaus A. Pedersen

IPC: A62B18/08 ,  H01Q1/27 ,  H01R13/52 ,  H04B7/04 ,  H05K1/14

CPC classification number: A62B18/08 ,  H01Q1/273 ,  H01R13/5224 ,  H04B7/04 ,  H05K1/148 ,  H05K2201/10189

Abstract: An apparatus for digital enhanced cordless telecommunications (DECT) on a respiratory protection mask having two or more diverse antennas is disclosed. According to one aspect, a communication module in a respiratory protection mask is configured to send and receive radio signals. The communication module includes a first antenna within the communication module and a second antenna within the communication module, the second antenna being separated from the first antenna to achieve antenna spatial diversity.