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

Claim 18:
19. A system for obtaining sensor information from a plurality of sensor devices pertaining to a location of a portable device relative to an object, said comprising:
a first sensor device configured to communicate first sensor information, the first sensor device configured to determine a first sensed characteristic that is based on first communications conducted according to a first schedule of different communication frequencies for communications with the portable device, the first sensor device operable to generate the first sensor information based on the first sensed characteristic;
a second sensor device configured to communicate second sensor information, the second sensor device configured to determine a second sensed characteristic that is based on second communications conducted according to a second schedule of different communication frequencies for communications with the portable device, the second sensor device operable to generate the second sensor information based on the second sensed characteristic; and
a processor configured to obtain the first and second sensor information generated by the first and second sensor devices,
the processor configured to determine the location of the portable device relative to the object based on at least one of the first and second sensor information determined respectively by the first and second sensor devices.