US 11,959,781 B2
Mat for sensing human body movement with sensor array
Hyungyu Park, Seoul (KR); Seonghyok Kim, Seoul (KR); Suhyang Kim, Seoul (KR); Jeongwook An, Seoul (KR); and Younjae Lee, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jul. 23, 2020, as Appl. No. 16/936,714.
Application 16/936,714 is a continuation of application No. PCT/KR2018/003341, filed on Mar. 22, 2018.
Claims priority of application No. 10-2018-0008366 (KR), filed on Jan. 23, 2018.
Prior Publication US 2020/0348154 A1, Nov. 5, 2020
Int. Cl. G01D 5/26 (2006.01); A47C 21/00 (2006.01); A61B 5/00 (2006.01); A61B 5/11 (2006.01); G01P 13/00 (2006.01); A61B 5/08 (2006.01)
CPC G01D 5/268 (2013.01) [A47C 21/00 (2013.01); A61B 5/1116 (2013.01); A61B 5/4806 (2013.01); A61B 5/6892 (2013.01); G01P 13/00 (2013.01); A61B 5/0816 (2013.01); A61B 2562/182 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A mat that senses an object on the mat, the mat comprising:
a substrate;
a sensor array that is disposed on the substrate and that includes a plurality of fiber sensors, each of the plurality of fiber sensors configured to generate a signal based on a distance between the object and the fiber sensor;
a shield layer that covers the sensor array;
a drive unit configured to apply a voltage to the sensor array;
a plurality of connection electrodes that are disposed at an edge of the substrate and electrically connect the plurality of fiber sensors with the drive unit; and
a shield portion disposed at the edge of the substrate, the shield portion having a shape that surrounds the plurality of connection electrodes and being configured to block an electromagnetic field to thereby restrict an impedance change of the plurality of connection electrodes based on a distance change between the plurality of connection electrodes and the object,
wherein the plurality of fiber sensors are disposed at opposite ends of the substrate and at a central portion between the opposite ends of the substrate.