Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Transponder actuatable switching device










Image Number 3 for United States Patent #8130080.

The present invention relates to a switching device for generating a switch signal, a reading device with the switching device and a method for the communication between a reading device and a transponder (T). The switching device includes an antenna (4), which with the help of an adapter circuit (AN) is adapted to a given resistance, and a measuring bridge (1), which includes two voltage dividers connected in parallel. The resistance acts in one of the voltage dividers and in the case of a change of the resistance the measuring bridge (1) generates the switch signal. This means when a transponder reaches the detection range of a reading device having the switching device, an additional impedance is coupled in, which acts on the measuring bridge (1). This change is recognized and leads to the generation of the switch signal.








 
 
  Recently Added Patents
Antisense modulation of C-reactive protein expression
Inductance element
Method and composition for improving skin barrier function
Compact light shield for flash photography
Case of electronic device having antenna pattern embedded therein and mold and method for manufacturing the same
Method and apparatus for controlling the use of data stored on a media sample
Geo-coding images
  Randomly Featured Patents
Input current shaping technique and low pin count for pfc-pwm boost converter
Roll packed bedding products
Method and system for mask fabrication process control
Threadless cap with a nonintegral seal
Table
System and method for monitoring assets, objects, people and animals utilizing impulse radio
Gas storage medium and methods
Electro-explosive device with shaped primary charge
Sphericon
Shock and vibration resistant electrical switch