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US 2010/0090831 A1Published application
Electronic device with radio frequency identification (RFID) technology
AssigneeO2Micro, Inc.
InventorsYu Zhao, Hui Yang
Life of this patent
Estimating the term…
Abstract
An electronic device includes a radio frequency identification (RFID) reader and a controller coupled to the RFID reader. The RFID reader is used for detecting an RFID tag when a distance between the RFID tag and the RFID reader is within a predetermined range. The controller is used for enabling the electronic device to operate at an emergency mode when the distance between the RFID tag and the RFID reader is beyond the predetermined range. In the emergency mode, the electronic device is locked.
Claims26
An electronic device comprising:
- a radio frequency identification (RFID) reader for detecting an RFID tag when a distance between said RFID tag and said RFID reader is within a predetermined range;
- and
- a controller coupled to said RFID reader for enabling said electronic device to operate at an emergency mode in which said electronic device is locked when said distance between said RFID tag and said RFID reader is beyond said predetermined range.
A method comprising:
- detecting a radio frequency identification (RFID) tag by an RFID reader when a distance between said RFID tag and said RFID reader is within a predetermined range;
- enabling an electronic device to operate at an emergency mode when said distance between said RFID tag and said RFID reader is beyond said predetermined effective range;
- and
- locking said electronic device in said emergency mode.
1 more element
A system, comprising:
- a radio frequency identification (RFID) reader for emitting radio frequency (RF) waves;
- an RFID tag for receiving said RF waves and generating a response signal when a distance between said RFID reader and said RFID tag is within a predetermined range;
- and
- a controller for enabling an electronic device to operate at an emergency mode in which said electronic device is locked when said distance between said RFID tag and said RFID reader is beyond said predetermined range.
1 more element
Dependencies are inferred from the claim text.