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US 6,747,573 B1Granted
Apparatus and method for generating coded high-frequency signals
AssigneeEnOcean GmbH
InventorsHorst Gerlach, Franz Kammerl, Gerd Scholl, Thomas Ostertag, Frank Schmidt, Wolf-Eckhart Bulst
Life of this patent
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Abstract
An apparatus and method for generating coded high-frequency signals, having a converter, which converts non-electrical primary energy available from the surroundings into electrical energy, an element with a nonlinear characteristic curve, which is coupled to the converter, and a coding device coupled to the element with a nonlinear characteristic curve.
Claims26
An apparatus for generating coded high-frequency signals, comprising:
- a converter for converting a non-electrical primary energy into low-frequency electrical energy;
- an element with a non-linear characteristic curve having a behavior that changes abruptly as a function of applied voltage starting from at least one of a specific limit value and a limit range, the element thereby generating a current pulse with a steep edge which corresponds to a high-frequency signal, the element thereby converting the low-frequency electrical energy into high-frequency electrical energy in the form of the high-frequency signal;
- a coding device for generating a coded signal from the high-frequency signal;
- and
- a filter for selecting a narrow signal from the high-frequency electrical energy, the filter being connected between the element and the coding device.
2 more elements
A method for generating coded high-frequency radio signals, the method comprising the steps of:
- converting a non-electrical primary energy into low-frequency electrical energy;
- converting the low-frequency electrical energy into high-frequency electrical energy via an element with a non-linear characteristic curve, the element having a behavior that changes abruptly as a function of applied voltage starting from at least one of a specific limit value and a limit range to thereby generate a current pulse with a steep edge which corresponds to a high-frequency signal;
- filtering, if appropriate, a narrow band high-frequency signal out from a broader-band high-frequency energy;
- and
- impressing a coding on the narrow band high-frequency signal.
2 more elements
Dependencies are inferred from the claim text.