Patent ID: 9507979
Filing Date: 2016-11-29
CPC Classification: G06K

Claim Text:
1. A method of saving power in a battery powered device that includes a radio frequency identification (RFID) tag reader and a touch sensor, said method comprising: providing a touch sensor that can perform proximity and touch sensing; providing a radio frequency identification (RFID) tag reader for reading data from an RFID tag, wherein the touch sensor and the RFID tag reader are disposed in the battery powered device; activating the RFID tag reader only after detecting the RFID tag using proximity sensing of the touch sensor; reading the RFID tag that was detected by the touch sensor by using the activated RFID tag reader; and deactivating the RFID tag reader after reading the RFID tag in order to conserve power in the battery powered device by only actively scanning for RFID tags using the touch sensor and not the RFID tag reader.