An electronic system includes a reader and a remotely powered and remotely interrogated sensor transponder. The sensor transponder includes a reader and a remotely powered and remotely interrogated sensor transponder. The sensor transponder includes a sensor and a radiation receiving device. Data from...http://www.google.com/patents/US20070285248?utm_source=gb-gplus-sharePatent US20070285248 - Remotely powered and remotely interrogated wireless digital sensor telemetry system
