Thomas Eugene Old,John Christopher Baker,Neal J. Carron,Donald Gordon Pritchett
申请号：
US13969423
公开号：
US20140051949A1
申请日:
2013.08.16
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Systems and methods described herein use near field communications to locate a set of antennas attached to, coupled with, or near the patient. A signal emitted by an antenna in the set of antennas can be received by the other antennas in the set. A second signal can be further transmitted from another antenna in the set. The differential phase and/or time shifts between the antennas from the multiple signal transmissions can contain sufficient information to find the locations of the antennas in antenna centric coordinates. The antenna locations can then be used to find a location of a pill transmitter swallowed by the patient.
