Patent ID: 11924721
Assignee: DENSO CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of obtaining sensor information from a plurality of sensor devices pertaining to a location of a portable device relative to an object, said method comprising:
conducting first communications with the portable device according to a first schedule of different communication frequencies for communications with the portable device;
obtaining a first sensed characteristic in a first sensor device, the first sensed characteristic pertaining to the first communications;
generating first sensor information based on the first sensed characteristic;
conducting second communications with the portable device according to a second schedule of different communication frequencies for communications with the portable device;
obtaining a second sensed characteristic in a second sensor device, the second sensed characteristic pertaining to the second communications;
generating second sensor information based on the second sensed characteristic; and
generating location information about the portable device relative to the object based on at least one of the first and second sensor information.