PORTABLE ELECTRONIC DEVICE HAVING SELF-CALIBRATING PROXIMITY SENSORS
摘要
A method of a portable electronic device for self-calibration of a proximity sensor. A background measurement is obtained by the proximity sensor and a detection threshold of the proximity sensor is adjusted based on the background measurement. The background measurement is a measure of a received signal when no signal is transmitted by the proximity sensor, and the detection threshold is associated with a sensitivity of the proximity sensor to environmental conditions. A source signal is emitted by the proximity sensor based on the adjusted detection threshold of the proximity sensor, and a return signal is received by the proximity sensor corresponding to the source signal. A function of the portable electronic device may be performed base don the received return signal.
申请公布号
WO2010077550(A2)
申请公布日期
2010.07.08
申请号
WO2009US66555
申请日期
2009.12.03
申请人
MOTOROLA, INC.;ALAMEH, RACHID M.;DIETRICH, AARON L.;PAITL, KENNETH ALLEN
发明人
ALAMEH, RACHID M.;DIETRICH, AARON L.;PAITL, KENNETH ALLEN