US 12,225,464 B2
User communication device executing standby mode, operating method thereof, and human body communication system including the same
Hyuk Kim, Daejeon (KR); Hyung-Il Park, Daejeon (KR); Tae Wook Kang, Daejeon (KR); Sung Eun Kim, Daejeon (KR); Mi Jeong Park, Daejeon (KR); Kyung Jin Byun, Daejeon (KR); Kwang Il Oh, Daejeon (KR); Sukho Lee, Daejeon (KR); Jae-Jin Lee, Daejeon (KR); In Gi Lim, Daejeon (KR); and Kyuseung Han, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Dec. 16, 2021, as Appl. No. 17/552,766.
Claims priority of application No. 10-2020-0177679 (KR), filed on Dec. 17, 2020; and application No. 10-2021-0174700 (KR), filed on Dec. 8, 2021.
Prior Publication US 2022/0201611 A1, Jun. 23, 2022
Int. Cl. H04W 52/02 (2009.01); H04B 13/00 (2006.01)
CPC H04W 52/0229 (2013.01) [H04B 13/005 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of operating a user communication device, the method comprising:
receiving a wakeup signal from a stationary communication device over a first human body communication channel, wherein the wakeup signal has a frequency in a low frequency band;
switching from a standby mode to a wakeup mode in response to the wakeup signal; and
receiving a data signal from the stationary communication device over the first human body communication channel during the wakeup mode,
wherein the first human body communication channel is provided by a body of a user of the user communication device;
transmitting a standby signal requesting another user communication device to set an operating mode of the other user communication device to the standby mode, during the wakeup mode;
wherein the transmitting the standby signal requesting the other user communication device to set the operating mode of the other user communication device to the standby mode, during the wakeup mode includes:
transmitting the standby signal to the other user communication device over a second human body communication channel during the wakeup mode, and
wherein the second human body communication channel is provided by a body of a user of the other user communication device.