Device for non-contact transmission of electrical signals and/or energy
First Claim
1. Device for non-contact transmission of electrical signals or energy between at least two parts mobile relative to each other, comprising a plurality of defined electromagnetic coupler elements provided on the at least two parts between which signals or energy is to be communicated, with a near field of the coupler elements causing the non-contact transmission;
- whereinsaid coupler elements on at least one part form a conductor structure configured as a cascade circuit which is terminated in a manner free from reflection; and
each coupler element, independently of other coupler elements, is a resonance system having a resonance frequency higher than a highest frequency of wide-band signals to be transmitted.
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Accused Products
Abstract
A device for non-contact transmission of electrical signals or energy between two parts mobile relative to each other comprising electromagnetic near-field coupler elements on the two parts, wherein the coupler elements on at least one part form a cascade circuit terminated in a manner substantially free from reflection, and each coupler element is an independent resonance system having a resonance frequency higher than a highest frequency of wide-band signals to be transmitted. An alternatively structured device in which each coupler element on one part includes an element that resonates independently and has a resonance frequency approximately equal to the frequency of signals or energy to be transmitted including developments in which the coupler elements operate on differential signals, or analyzer means determine the spacing between the two parts, or at least one part comprises symmetrical lines for supplying differential energy signals to two coupler elements.
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Citations
37 Claims
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1. Device for non-contact transmission of electrical signals or energy between at least two parts mobile relative to each other, comprising a plurality of defined electromagnetic coupler elements provided on the at least two parts between which signals or energy is to be communicated, with a near field of the coupler elements causing the non-contact transmission;
- wherein
said coupler elements on at least one part form a conductor structure configured as a cascade circuit which is terminated in a manner free from reflection; and
each coupler element, independently of other coupler elements, is a resonance system having a resonance frequency higher than a highest frequency of wide-band signals to be transmitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- wherein
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31. An apparatus for non-contact transmission of electrical energy between a first movable part and a second stationary part comprising:
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at least two electromagnetic coupler elements provided on one of the two parts; each coupler element having a resonance system; said at least two electromagnetic coupler elements forming a conductor structure comprising a cascade circuit, which is terminated such that signal reflections are substantially eliminated; wherein each resonance system comprises a single element which resonates independent of the other resonance system at a resonant frequency that is higher than a highest frequency of the transmitted electrical energy. - View Dependent Claims (32, 33, 34)
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35. Device for non-contact transmission of electrical signals or energy between at least two parts mobile relative to each other, comprising:
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a plurality of defined electromagnetic coupler elements provided on the at least two parts between which signals or energy is to be communicated, with a near field of the coupler elements causing the non-contact transmission; each coupler element provided on at least one part comprises at least one resonator including a single element which is able to resonate per se and independently of the other coupler elements, and which has a resonance frequency approximately equal to the frequency of the signals or energy to be transmitted, and the individual resonators are connected to each other via a line which is terminated in a manner free from reflection; wherein an analyser means is provided which determines the operating frequency of the system and derives therefrom a signal in correspondence with the size of the spacing of said parts adapted to be moved relative to each other.
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36. An apparatus for non-contact transmission of electrical energy between a movable part and a stationary part comprising:
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at least two coupler elements provided on one of the two parts; each coupler element having a resonator; a line coupling each of said resonators to each other, said line being terminated such that signal reflections are substantially eliminated; an electrical energy source where at least one of the two parts comprises a conductor structure having a symmetrical configuration with a first and a second line coupled to the electrical energy source; wherein each resonator comprises a single element which resonates independent of the other resonators at a resonant frequency that is approximately equal to a frequency of the transmitted electrical energy; and wherein the first and second lines supply electrical energy to at least a first coupler element and to at least a second coupler element, the electrical energy comprising differential signals.
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37. Device for non-contact transmission of electrical signals or energy between at least two parts mobile relative to each other, comprising:
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a plurality of defined electromagnetic coupler elements provided on the at least two parts between which signals or energy is to be communicated, with a near field of the coupler elements causing the non-contact transmission; each coupler element provided on at least one part comprises at least one resonator including a single element which is able to resonate per se and independently of the other coupler elements, and which has a resonance frequency approximately equal to the frequency of the signals or energy to be transmitted, and the individual resonators are connected to each other via a line which is terminated in a manner free from reflection; wherein said coupler elements are configured as differential coupler elements and a differential signal is applied to said coupler elements.
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Specification