RFID INTERROGATOR WITH ADJUSTABLE SIGNAL CHARACTERISTICS
1 Assignment
0 Petitions
Accused Products
Abstract
A radio frequency identification (RFID) interrogator housed in a portable platform that includes at least one antenna, a transceiver for transmitting and receiving a radio frequency (RF) signal through the antenna, and a controller in communication with the transceiver for adjusting power and direction of the transmitted RF signal. The controller can be configured to adjust the antenna orientation, and can also selectively activate and deactivate one or more antennas.
30 Citations
20 Claims
-
1. (canceled)
-
2. A method comprising:
-
transmitting a first radio frequency (RF) signal from an antenna of a transceiver to a RFID device, wherein the transmitting occurs in response to a signal from a trigger; receiving a second RF signal from the RFID device at the antenna of the transceiver, wherein the receiving occurs in response to the signal from the trigger; adjusting transmission parameters of the first RF signal; and adjusting a sensitivity and direction of the antenna to indicate a directional axis along which the second RF signal is received such that other RF signals transmitted along a different directional axis are not received at the transceiver. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method comprising:
-
transmitting a first radio frequency (RF) signal a transceiver; receiving a second RF signal at the transceiver; presenting an alert to a user, wherein the alert includes any one of an audio indication, visual indication, and physical indication; adjusting characteristics of the first RF signal, and adjusting a sensitivity and direction of an antenna of the transceiver to indicate a directional axis along which the second RF signal is received such that other RF signals transmitted along a different directional axis are not received at the transceiver. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification