# US 11,309,614 B2 · Device for transmitting a signal with the aid of waveguides

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- Number: US 11,309,614 B2
- Document ID: US11309614B2
- Status: Granted
- Kind: B2
- Application number: 16/965,891
- Filed: 2019-01-17
- Published: 2021-01-07
- Granted: 2022-04-19
- Earliest claimed: 2018-02-01
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Kai Worms; Ludwig Brechter
- Web page: https://patentgrep.com/patent/US11309614B2

## CPC

- H01P 1/068: {the energy being transmitted in at least one ring-shaped transmission line located around the axis of rotation, e.g. "around the mast" rotary joint (H01P1/069 takes precedence; coaxial line with solid inner conductor H01P1/067)}
- A61B 6/56: {Details of data transmission or power supply, e.g. use of slip rings}
- H01P 3/081: {Microstriplines}
- H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A device for transmitting a signal with the aid of waveguides in rotating systems. The device includes at least one transmitting waveguide and at least one receiving waveguide. The at least one receiving waveguide and the at least one transmitting waveguide being divided into multiple radially distributed segments. The radially distributed segments of the at least one receiving waveguide each include a tap. An adder for adding the signals obtained with the aid of the taps of the radially distributed segments of the at least one receiving waveguide is also provided.

## Claims

### Claim 1

A device for transmitting a signal using waveguides in a rotating system, the device comprising:
at least one transmitting waveguide;
at least one receiving waveguide, each of the at least one receiving waveguide and the at least one transmitting waveguide being divided into multiple radially distributed segments, wherein the radially distributed segments of the at least one receiving waveguide each include a tap; and
an adder configured to add together signals obtained using the taps of the radially distributed segments of the at least one receiving waveguide;
wherein a length of each of the segments of the at least one receiving waveguide is greater than a minimal relevant wavelength λmin=cΠτ occurring in the signal to be transmitted.

### Claim 2 (depends on 1)

The device as recited in claim 1, further comprising:
a reconstruction component configured to reconstruct a signal obtained by the addition by the adder.

### Claim 3 (depends on 2)

The device as recited in claim 2, wherein the reconstruction component is an integrator or a comparator with hysteresis.

### Claim 4

A device for transmitting a signal using waveguides in a rotating system, the device comprising:
at least one transmitting waveguide;
at least one receiving waveguide, each of the at least one receiving waveguide and the at least one transmitting waveguide being divided into multiple radially distributed segments, wherein the radially distributed segments of the at least one receiving waveguide each include a tap;
an adder configured to add together signals obtained using the taps of the radially distributed segments of the at least one receiving waveguide; and
a reconstruction component configured to reconstruct a signal obtained by the addition by the adder;
wherein the reconstruction component is an integrator or a comparator with hysteresis.

### Claim 5 (depends on 4)

The device as recited in claim 4, wherein the taps of the radially distributed segments of the at least one receiving waveguide are situated opposite one another.

### Claim 6 (depends on 4)

The device as recited in claim 4, furthermore comprising:
a component configured to couple the signal to be transmitted having positive polarity into a first segment of the at least one transmitting waveguide, and to couple the signal to be transmitted having negative polarity into a second segment of the at least one transmitting waveguide.

### Claim 7 (depends on 6)

The device as recited in claim 6, the component is a comparator, which has a non-inverting output and an inverting output.

### Claim 8 (depends on 4)

The device as recited in claim 4, wherein a respective resistor is provided for terminating a free end of each of the radially distributed segments of the at least one transmitting waveguide and/or each of the radially distributed segments of the at least one receiving waveguide.

### Claim 9 (depends on 4)

The device as recited in claim 4, wherein the adder is a resistive coupler.

### Claim 10 (depends on 4)

The device as recited in claim 4, wherein the radially distributed segments of the at least one transmitting waveguide and/or the radially distributed segments of the at least one receiving waveguide, are half rings.

### Claim 11 (depends on 4)

The device as recited in claim 4, wherein the radially distributed segments of the at least one transmitting waveguide and/or the radially distributed segments of the at least one receiving waveguide, are shortened receiving rings having mutually opposing decoupling points.

### Claim 12 (depends on 4)

The device as recited in claim 4, wherein the at least one transmitting waveguide is provided at a rotor, and the at least one receiving waveguide is provided at a stator.

### Claim 13 (depends on 4)

The device as recited in claim 4, further comprising:
a component configured to divide the signal to be transmitted for a first transmitting waveguide and for a second transmitting waveguide.

### Claim 14 (depends on 13)

The device as recited in claim 13, furthermore comprising:
a first receiving waveguide and a second receiving waveguide, the first receiving waveguide provided for detecting the signal transmitted using the first transmitting waveguide, and the second receiving waveguide being provided for detecting the signal transmitted with using the second transmitting waveguide.
