US 11,737,674 B2
RF microwave core temperature system having RF receiver module to detect core temperature
Nam Young Kim, Gwangju-si (KR); Eun Seong Kim, Gwangju-si (KR); and Jaewoo Shin, Seoul (KR)
Assigned to EASYTEM Co., Ltd., Siheung-si (KR)
Filed by EASYTEM Co., Ltd., Siheung-si (KR)
Filed on Feb. 6, 2021, as Appl. No. 17/169,447.
Claims priority of application No. 10-2020-0179132 (KR), filed on Dec. 20, 2020.
Prior Publication US 2022/0192504 A1, Jun. 23, 2022
Int. Cl. A61B 5/01 (2006.01); G01K 1/024 (2021.01); A61B 5/05 (2021.01); A61B 5/00 (2006.01); G01K 1/02 (2021.01); G01K 11/00 (2006.01); A61B 5/0507 (2021.01)
CPC A61B 5/01 (2013.01) [A61B 5/0022 (2013.01); A61B 5/05 (2013.01); A61B 5/7203 (2013.01); A61B 5/7435 (2013.01); G01K 1/024 (2013.01); G01K 1/028 (2013.01); G01K 11/006 (2013.01); A61B 5/002 (2013.01); A61B 5/0008 (2013.01); A61B 5/0507 (2013.01); A61B 5/6823 (2013.01); A61B 5/6833 (2013.01); A61B 5/7225 (2013.01); A61B 5/7445 (2013.01); A61B 2560/0214 (2013.01); A61B 2562/0228 (2013.01); A61B 2562/0271 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A radio frequency (RF) receiver module for sensing core body temperature, the RF receiver module being included in an RF microwave core body thermometer, the module comprising:
an RF contact-type patch antenna attached to a human part to sense the core body temperature of the human body;
an RF receiver circuit unit to receive any one RF frequency signal within a frequency range of 1 to 10 GHz except for 1.4 GHz, 1.6 GHz, 1.7 GHz, 2.6 GHz and 2.7 GHz through the RF contact-type patch antenna for sensing core body temperature and to be attached to a human body; and
an interface circuit unit for connecting the RF receiver circuit unit to a control unit of a microprocessor control unit,
wherein the interface circuit unit includes:
an A/D converter configured to receive, from the RF receiver circuit unit, an in-phase signal LO_I and its quadrature signal LO_Q of a local oscillator LO, and A/D convert the in-phase signal and its quadrature signal; and
a temperature converter configured to convert a heat radiation signal into a core body temperature inside the human body.