Identification device and identification system
First Claim
1. An identification device for receiving a first signal and transmitting a second signal, the device including:
- a receiving means for receiving the first signal and employing the first signal to generate a voltage;
wherein the receiving means generates a first current from the voltage;
an integrated circuit;
wherein the integrated circuit includes a state selection means for selecting whether the device is in a first state or a second state;
a connection between the receiving means and the integrated circuit;
a transmission means for generating the second signal;
wherein—
relative to the second state—
a relatively larger amount of the first current flows through the receiving means when the device is in the first state; and
wherein—
relative to the first state—
a relatively smaller amount of the first current flows through the receiving means when the device is in the second state.
5 Assignments
0 Petitions
Accused Products
Abstract
A preferred embodiment of the invention includes: an identification device (1) for receiving a first signal and transmitting a second signal, the device including: a receiving means (35) for receiving the first signal to generate a voltage; an integrated circuit (37) having a state selection means (41) for selecting whether the device (1) is in a first state or a second state; a connection (39) between the receiving means (35) and the integrated circuit (37); a transmission means (45) for generating the second signal. The invention also includes a system (50) that includes an interrogator (43) for interrogating a plurality of the identification devices (1).
-
Citations
60 Claims
-
1. An identification device for receiving a first signal and transmitting a second signal, the device including:
-
a receiving means for receiving the first signal and employing the first signal to generate a voltage;
wherein the receiving means generates a first current from the voltage;
an integrated circuit;
wherein the integrated circuit includes a state selection means for selecting whether the device is in a first state or a second state;
a connection between the receiving means and the integrated circuit;
a transmission means for generating the second signal;
wherein—
relative to the second state—
a relatively larger amount of the first current flows through the receiving means when the device is in the first state; and
wherein—
relative to the first state—
a relatively smaller amount of the first current flows through the receiving means when the device is in the second state. - 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, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 57, 58, 59, 60)
-
-
44. A system for identifying articles, the system including:
-
a signal generator for generating a first signal;
a plurality of articles;
a plurality of identification devices, each individual device being respectively associated with each individual article;
wherein each device includes;
a receiving means for receiving the first signal and employing the first signal to generate a voltage;
wherein the receiving means generates a first current from the voltage;
an integrated circuit;
wherein the integrated circuit includes a state selection means for selecting whether the device is in a first state or a second state;
a connection between the receiving means and the integrated circuit;
a transmission means for generating the second signal;
wherein—
relative to the second state—
a relatively larger amount of the first current flows through the receiving means when the device is in the first state; and
wherein—
relative to the first state—
a relatively smaller amount of the first current flows through the receiving means when the device is in the second state. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
-
Specification