초록 ▼

A transponder/interrogator system for remotely identifying objects. The interrogator emits optical pulses to activate the transponder. Upon such activation, the transponder emits a unique code in the form of optical pulses in accordance with a program stored in its memory. The interrogator receives

A transponder/interrogator system for remotely identifying objects. The interrogator emits optical pulses to activate the transponder. Upon such activation, the transponder emits a unique code in the form of optical pulses in accordance with a program stored in its memory. The interrogator receives the optical pulses from the transponder and decodes them. The decoded information is then supplied to peripheral equipment which run various status checks on the object identified and takes appropriate action.

대표청구항 ▼

An object indentification system comprising: a transponder associated with the object to be identified including switching means responsive to a remote activation signal for producing a switching signal, memory means containing a coded data word identifying said object, and data transmission means r

An object indentification system comprising: a transponder associated with the object to be identified including switching means responsive to a remote activation signal for producing a switching signal, memory means containing a coded data word identifying said object, and data transmission means responsive to said switching signal for optically transmitting a transponder signal representative of said coded data word at a frequency independent of the frequency of said switching signal, said data transmission means beginning transmission of said coded data word from a random point in said memory means; and an interrogator for identifying said object including remote activation means for generating said remote activation signal, receiver means for receiving said transponder signal, and processing means for determining the identity of said object from said received transponder signal including decoding means for determining the start of said coded data word and decoding said word.