Patent ID: 9024576
Filing Date: 2015-05-05
Classification: H02J

Abstract:
1. An apparatus comprising: an inductive charging system configured to charge a rechargeable battery, where the inductive charging system comprises an induction coil; and at least first and second wireless communication systems configured to communicate with respective devices, the first wireless communication system comprising at least a first portion of the induction coil for transmitting and/or receiving a wireless signal at the induction coil, the second wireless communication system comprising at least a second portion of the induction coil for generating a communication electromagnetic field at the induction coil, each of the first and second wireless communication systems shares at least a respective part of the induction coil as a common component with the inductive charging system, where the first wireless communication system comprises a near field communication (NFC) system configured to use the first portion of the induction coil as a near field communication antenna, and where the second wireless communication system comprises a hearing aid compatibility (HAC) system configured to generate an electromagnetic field from the induction coil.