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US 6,060,815 AGranted
Frequency mixing passive transponder
AssigneeX-Cyte, Inc.
InventorPaul A. Nysen
Life of this patent
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AssigneeX-Cyte, Inc.
InventorPaul A. Nysen
Estimating the term…
A transponder device, receiving a plurality of waves having differing frequencies, and producing a wave, having a frequency differing from the plurality of received waves, having characteristic modifications, having a mixer, receiving at least two waves and producing a mixed wave having a frequency differing from the received plurality of waves; and a wave modifying device, producing a characteristically modified wave from an input wave, the mixer being interconnected with the wave modifying device to produce, from the received plurality of waves, an output which is both characteristically modified and at a frequency of the mixed wave. The device may include one or more antenna structures, and preferably produces a mixed wave which is then characteristically modified and emitted from the device. The wave modifying device is, for example, a semiconductor modulator or an acoustic wave device.
A transponder device, receiving a plurality of waves having differing frequencies, and producing a modified wave therefrom, having a frequency differing from each of the plurality of received waves, and having characteristic distinguishing modifications, said device comprising:
A communication method, comprising the steps of:
A transponder device, receiving a plurality of radio frequency waves having differing frequencies, and producing a modified wave derived therefrom, having a frequency differing from each of the plurality of received waves, and having characteristic modifications capable of being distinguished from waves of the same frequency having differing characteristic modifications, said device comprising:
Dependencies are inferred from the claim text.