ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,382,392, issued on Aug. 5, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).
"Bluetooth device" was invented by Chang Hoon Yoo (Seoul, South Korea), Kyeng Suk Kim (Seoul, South Korea) and Seung Taek Woo (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an embodiment, provided is a Bluetooth device comprising a master module and at least one slave module, wherein: the master module operates in an active mode when a mobile communication device is located within a pre-set range and switches to a power saving mode when the mobile communication device deviates from the pre-set range; in the active mode, the master module ...