US 12,408,004 B2
System and method of calibration for establishing real-time location
Eric J. Smith, Holland, MI (US); R. Michael Stitt, Ada, MI (US); and Karl Jager, Zeeland, MI (US)
Assigned to DENSO International America, Inc., Southfield, MI (US); and DENSO CORPORATION, Kariya (JP)
Filed by DENSO International America, Inc., Southfield, MI (US); and DENSO CORPORATION, Kariya (JP)
Filed on Aug. 10, 2021, as Appl. No. 17/398,428.
Application 17/398,428 is a continuation of application No. 16/713,363, filed on Dec. 13, 2019, granted, now 11,122,389.
Claims priority of provisional application 62/779,740, filed on Dec. 14, 2018.
Prior Publication US 2021/0368294 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 4/02 (2018.01); H04B 17/11 (2015.01); H04B 17/318 (2015.01); H04W 4/029 (2018.01); H04W 4/40 (2018.01); H04W 76/15 (2018.01); H04W 4/80 (2018.01); H04W 84/12 (2009.01)
CPC H04W 4/023 (2013.01) [H04B 17/11 (2015.01); H04B 17/318 (2015.01); H04W 4/029 (2018.02); H04W 4/40 (2018.02); H04W 76/15 (2018.02); H04W 4/80 (2018.02); H04W 84/12 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A system for determining location information pertaining to a location of a portable device relative to an object, said system comprising:
an object device disposed in a fixed position relative to the object, the object device having an antenna configured to communicate wirelessly with the portable device via a communication link;
a controller configured to determine location information about the portable device relative to the object;
the controller operable to store a first device-type parameter associated with a device-type of the portable device, the controller operable to store a second device-type parameter associated with a device-type of another portable device that is different from the portable device; and
the controller including a locator, the locator configured to determine location information based at least on 1) a signal characteristic of communications wirelessly transmitted between the portable device and the object device and 2) the first device-type parameter associated with the device-type of the portable device, wherein the controller is operable to determine location information for the other portable device, if present and communicating with the object device, based at least on the second device-type parameter associated with the device-type of the other portable device.