Patent ID: 11889380
Assignee: DENSO CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A system for establishing location information with respect to a portable device and a data access point, the system comprising:
a master device disposed in a fixed position relative to the data access point, the master device capable of communicating with at least one of the portable device and one or more sensor devices;
a plurality of antennas, each of the plurality of antennas configured to receive wireless communications and provide an antenna output corresponding to the wireless communications;
wherein a characteristic signal is determined for at least one antenna output based on a plurality of time-spaced measurements of the at least one antenna output;
wherein an output signal is determined based on a function of the characteristic signal, wherein a location of the portable device is determined relative to the data access point based on the output signal, whereby the function mitigates environmental effects in the at least one antenna output;
wherein at least one sensor device of the one or more sensor devices is operably coupled to the plurality of antennas, wherein the at least one sensor device is configured to determine the output signal, and wherein the at least one sensor device communicates a signal characteristic of the output signal to the master device; and
wherein a zone is determined based on a receive range of the plurality of antennas located in or near the data access point,
wherein the master device is configured to identify presence of the portable device within the zone based on the output signal and to authorize to perform at least one service function between the portable device and the data access point,
wherein the at least one service function includes a physical access to connection points, adjustment of access to data, and targeted marketing for a user of the portable device.