Adjusting RFID waveform shape in view of detected RF energy
First Claim
Patent Images
1. An RFID reader system comprising:
- an antenna; and
an operational processing block coupled to the antenna and operable to select a first one of a plurality of communication channels, apply a rule to RF energy that is detected in conjunction with using the selected channel for determining a result, and adjust an own waveform shaping parameter according to the result, and cause the antenna to transmit to RFID tags first RF waves in the selected channel such that second RF waves are backscattered from the RFID tags in response to transmitting the first RF waves, in which at least some of one of the first RF waves and the second RF waves have a waveform with a shape according to the adjusted own waveform shaping parameter.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy encountered in conjunction with using a selected channel is detected and used to adjust a waveform shaping parameter. RF waves can be transmitted from the reader to the RFID tags and RF waves can be backscattered from the RFID tags. At least some of the RF waves transmitted to or backscattered from the RFID tags have a waveform with a shape according to the adjusted waveform shaping parameter.
-
Citations
68 Claims
-
1. An RFID reader system comprising:
-
an antenna; and
an operational processing block coupled to the antenna and operable to select a first one of a plurality of communication channels, apply a rule to RF energy that is detected in conjunction with using the selected channel for determining a result, and adjust an own waveform shaping parameter according to the result, and cause the antenna to transmit to RFID tags first RF waves in the selected channel such that second RF waves are backscattered from the RFID tags in response to transmitting the first RF waves, in which at least some of one of the first RF waves and the second RF waves have a waveform with a shape according to the adjusted own waveform shaping parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. An RFID reader system operable to communicate with RFID tags, comprising:
-
selecting means for selecting a first one of a plurality of communication channels;
detecting means for detecting RF energy encountered in conjunction with using the selected channel;
applying means for applying a rule to the detected RF energy for determining a result, adjusting means for adjusting an own waveform shaping parameter according to the result, and antenna means for transmitting to the RFID tags first RF waves in the selected channel and for receiving second RF waves backscattered from the RFID tags in response to transmitting the first RF waves, at least some of one of the first and the second RF waves having a waveform with a shape according to the adjusted own waveform shaping parameter. - View Dependent Claims (29, 30, 31, 32, 33)
-
-
34. An article comprising:
- a storage medium, the storage medium having instructions stored thereon, in which when the instructions are executed by at least one component of an RFID reader system that is operable to communicate with RFID tags, they result in;
selecting a first one of a plurality of communication channels;
detecting RF energy encountered in conjunction with using the selected channel;
applying a rule to the detected RF energy for determining a result, adjusting an own waveform shaping parameter according to the result, and transmitting to the RFID tags first RF waves in the selected channel and receiving second RF waves backscattered from the RFID tags in response to transmitting the first RF waves, at least some of one of the first and the second RF waves having a waveform with a shape according to the adjusted own waveform shaping parameter. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
- a storage medium, the storage medium having instructions stored thereon, in which when the instructions are executed by at least one component of an RFID reader system that is operable to communicate with RFID tags, they result in;
-
45. A method for an RFID reader system to communicate with RFID tags, comprising:
-
selecting a first one of a plurality of communication channels;
detecting RF energy encountered in conjunction with using the selected channel;
applying a rule to the detected RF energy for determining a result, adjusting an own waveform shaping parameter according to the result, and transmitting to the RFID tags first RF waves in the selected channel and receiving second RF waves backscattered from the RFID tags in response to transmitting the first RF waves, at least some of one of the first and the second RF waves having a waveform with a shape according to the adjusted own waveform shaping parameter. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
-
Specification