Methods and systems for integrated interrogation of RFID sensors
First Claim
Patent Images
1. An integrated interrogator for a Radio Frequency Identification (RFID) sensor, comprising:
- a digital portion in communication with the RFID sensor, wherein the digital portion is configured to read a digital identification of the sensor;
an analog portion in communication with the RFID sensor, wherein the analog portion is configured to read at least two parameters comprising capacitance, resistance and inductance of a sensing film disposed on the RFID sensor, and wherein the analog portion is operatively coupled to an analog input of an integrated circuit chip of the RFID sensor; and
one or more controllers that coordinate actions of the digital and the analog portions.
3 Assignments
0 Petitions
Accused Products
Abstract
An integrated interrogator for a RFID sensor is provided. The integrated interrogator comprises a digital reader in communication with the RFID sensor, an impedance reader in communication with the RFID sensor, and one or more controllers that coordinate actions of the digital reader and the impedance reader.
-
Citations
18 Claims
-
1. An integrated interrogator for a Radio Frequency Identification (RFID) sensor, comprising:
-
a digital portion in communication with the RFID sensor, wherein the digital portion is configured to read a digital identification of the sensor; an analog portion in communication with the RFID sensor, wherein the analog portion is configured to read at least two parameters comprising capacitance, resistance and inductance of a sensing film disposed on the RFID sensor, and wherein the analog portion is operatively coupled to an analog input of an integrated circuit chip of the RFID sensor; and one or more controllers that coordinate actions of the digital and the analog portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An interrogation system for interrogation of one or more RFID sensors, comprising:
-
a sensor antenna that receives and transmits a signal from the one or more RFID sensors; an integrated interrogator operatively coupled to one or more of the one or more RFID sensors, comprising; an analog portion that measures at least two parameters comprising capacitance, resistance and inductance of a sensing film disposed on the one or more RFID sensors, wherein the analog portion is operatively coupled to an analog input of an integrated circuit chip of the RFID sensor; a digital portion that reads data from a memory chip of the RFID sensors; and a controller that coordinates actions of the analog portion and the digital portion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
Specification