Electronic identification system

Claim 1

A low power electronic identification system for remotely programming and storing information on an object and remotely retrieving information from the object, including, in combination, an information and identity storage device located on the object, and at least one interrogation station, one of said object and station moving and the other of said object and station being fixed, said station being located relatively remotely from the object, for reading and programming the information and identity storage device without physical contact when said one moves adjacent said other; the information and identity storage device comprising: memory means for storing information and identity data for later retrieval, protect means for protecting a portion of the memory means against accidental erasure, logic circuit means for producing a predetermined coded signal representing the information and identity data stored in the memory means, transmitter means for transmitting the coded signal, trigger circuit means which is triggered in response to receiving a burst of energy of a predetermined wavelength for, when triggered, causing the coded signal to be transmitted by the transmitter means and, means providing a power source for the information and identity storage device, the interrogation station comprising: interrogation signal means for triggering the trigger circuit means in the information and identity storage device, by providing a said burst of energy, receiver means for receiving the coded signal from the information and identity storage device, synchronization means between the information and identity storage device and the receiver means for synchronizing the signals transmitted therebetween and, decoder means for decoding the coded signal for verifying the accuracy of the coded signal, and for recovering the information and identity data stored in the memory means of the information and identity storage device.