RF POWER CONVERSION CIRCUITS & METHODS, BOTH FOR USE IN MOBILE DEVICES

摘要

This patent application teaches and describes radio frequency (RF) power conversion circuits and methods both for use in mobile devices (such as smart cards). Embodiments of the present invention include wireless personal ID cards or dongle including a fingerprint sensor. A fingerprint matching system can reside on cards. Power provided to the fingerprint sensor and on board processer(s) can be provided by a wireless signal provided to the card. The card can include an RF power conversion circuit configured to receive wireless RF energy and convert the wireless energy for powering electronics on the card. Other aspects, embodiments, and features of the present invention are also claimed and described.