A conversion circuit is provided for converting a differential voltage to a single-ended voltage. The conversion circuit has an input circuit including first and second input lines for receiving a differential voltage that is produced by a magnetic sensor in response to rotation of a wheel. First and...http://www.google.ca/patents/US5510706?utm_source=gb-gplus-sharePatent US5510706 - Differential to single-ended conversion circuit for a magnetic wheel speed sensor
