Integrated circuit transporter and a method of communication the

Details Integrated circuit transporter and a method of communication the Integrated circuit transporter and a method of communication the

1997-10-07

2000-07-18

Le, Thanh Cong

Telecommunications

Transmitter and receiver at separate stations

Short range rf communication

455 73, 455343, H04B 138

Patent

active

060919353

ABSTRACT:
An improved integrated circuit transponder device is presented comprising, in combination, a single, externally wireless package enclosing an integrated circuit semiconductor chip, a coil within the package being selectively exposed to an electromagnetic field, and a detection portion on the integrated circuit semiconductor chip and being coupled to each end of the coil for detecting when voltages at each end of the coil are approximately equal over a period of time. The detection portion includes an exclusive NOR gate coupled to each end of the coil for determining when the coil voltages are equal, and the output of the exclusive NOR gate is input to a filter before being delivered to the remainder of the device circuitry.

REFERENCES:
patent: 5041826 (1991-08-01), Milheiser
patent: 5905449 (1999-05-01), Tsubouchi et al.

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