Patent ID: 11897422
Assignee: DENSO INTERNATIONAL AMERICA, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC B  H  G | IPC B  G  H

Claim 9:
10. A method of determining a location of a portable device with respect to an object, said method comprising:
receiving first wireless communications in a first antenna;
providing a first antenna output based on the first wireless communications;
varying a mode transition criterion based on the first antenna output;
receiving second wireless communications in a second antenna;
providing a second antenna output based on the second wireless communications;
determining if the second antenna output satisfies the mode transition criterion;
varying the mode transition criterion at a first rate that is less than a second rate for determining if the second antenna output satisfies the mode transition criterion; and
based on a determination that the second antenna output satisfies the mode transition criterion, determining the location of the portable device with respect to the object based on wireless communications.