Embodiments of the present invention include a method of determining a location of a
mobile device. The method com prises transmitting a signal between a plurality of known …

US PATENT DOCUMENTS 3,303,501 A 2/1967 Mahoney 3,778,159 A 12/1973 Hines et al.
4,283,726 A 8/1981 Spence et al. 4,851,851 A 7, 1989 Hane 5,365,516 A 11/1994 Jandrell …

US PATENT DOCUMENTS 6,295,019 B1 9, 2001 Richards et al. 6,496,806 B1 12/2002
Horwitz et al. 6,577,238 B1 6, 2003 WhiteSmith et al. 6,659,344 B2 12/2003 Otto et al …

US7319397B2 - RFID device for object monitoring, locating, and tracking - Google Patents
US7319397B2 - RFID device for object monitoring, locating, and tracking - Google Patents …

An RFID system includes a hybrid backscatter-based RFID tag protocol-compatible with
existing 802.11 x/Bluetooth Standards as well as RFID standards. The tag is linked to a multi …

H04L63/0428—Network architectures or network communication protocols for network
security for providing a confidential data exchange among entities communicating through …

Some embodiments use scanning devices to characterize radio signals received at a
number of locations Within a geo graphical area of interest. The signal characteristics along …

(57) ABSTRACT A system for monitoring a container comprises an RFID device interior the
container and a receiving device exterior the container. The RFID device transmits …

US PATENT DOCUMENTS 3,303,501 A 2/1967 Mahoney 3,778,159 A 12/1973 Hines et al.
4,283,726 A 8/1981 Spence et al. 4,851,851 A 7, 1989 Hane 5,874,914 A* 2/1999 …

An integrated circuit includes an integrated circuit die having a millimeter wave transceiver
for communicating with a remote device via millimeter wave RF signaling. An antenna …