Method and device for acquiring at least one signal

• US 9,678,171 B2
• Filed: 01/29/2014
• Issued: 06/13/2017
• Est. Priority Date: 01/30/2013
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Piastowski, Martin, Nickel, Patrick, Triess, Burkhard
• Primary Examiner(s): Phan, Huy Q
• Assistant Examiner(s): Fortich, Alvaro
• Application Number:
  US14/167,266
• Publication Number:
  US 20140210459A1
• Time in Patent Office: 1,231 Days
• CPC Class Codes: G01R 29/00 Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
• CPC Class Codes: G01R 29/0871 Complete apparatus or systems; circuits, e.g. receivers or amplifiers G01R29/0878, G01R29/0892 take precedence; dosimeters, warning devices G01R29/0857
• CPC Class Codes: G01R 33/02 Measuring direction or magnitude of magnetic fields or magnetic flux G01R33/20 takes precedence

Abstract

A method for acquiring at least one signal transmitted via an electric conductor, wherein an electric and/or magnetic field of the conductor is acquired at at least two identical or different positions relative to a longitudinal coordinate of the conductor, thus obtaining two measurement signals corresponding to the respective positions, and the signal transmitted via the conductor is inferred from the measurement signals.

Claims

1. A method for acquiring at least one signal transmitted via an electric conductor, comprising:

acquiring information concerning the signal transmitted via the conductor by obtaining two measurement signals that represent at least one of;

i) an electric field, and ii) a magnetic field, of the conductor at at least two positions relative to a longitudinal coordinate of the conductor, the measurement signals being different than the signal transmitted via the conductor and the measurement signals not being transmitted through the conductor; and

inferring the signal transmitted via the conductor from the measurement signals, wherein a plurality of signals transmitted via the conductor are inferred from the measurement signals, the plurality of signals including a first signal transmitted in a first direction along the longitudinal coordinate and a second signal transmitted in a second direction opposite the first direction.

2. The method as recited in claim 1, wherein the at least two positions are identical.

3. The method as recited in claim 1, wherein the at least two positions are different.

4. The method as recited in claim 1, wherein a multidimensional equalization is applied to infer the signal.

5. The method as recited in claim 1, wherein coupling elements are used for the acquisition of the at least one of the electric field, and the magnetic field, of the conductor, the capacitive elements being at least one of:

i) discrete coupling elements, ii) inductive coupling elements, and iii) capacitive coupling elements.

13. The method as recited in claim 1, wherein a reconstructed version of the signal transmitted via the conductor is derived from at least one of the measurement signals.

16. The method as recited in claim 1, wherein the at least one signal transmitted via the electric conductor includes one of an Ethernet-based communications signal, a CAN (Controller Area Network) signal, and a FlexRay signal.

17. The method as recited in claim 1, wherein the data communication includes one of an Ethernet-based communications signal, a CAN (Controller Area Network) signal, and a FlexRay signal.

6. A method for analysis of a data communication between at least two data nodes connected to one another via a conductor, the method comprising:

acquiring information concerning the signal transmitted via the conductor by obtaining two measurement signals that represent at least one of;

i) an electric field, and ii) a magnetic field, of the conductor at at least two positions relative to a longitudinal coordinate of the conductor, the measurement signals being different than the signal transmitted via the conductor and the measurement signals not being transmitted through the conductor; and

inferring the signal transmitted via the conductor from the measurement signals, wherein a plurality of signals transmitted via the conductor are inferred from the measurement signals, the plurality of signals including a first signal transmitted in a first direction along the longitudinal coordinate and a second signal transmitted in a second direction opposite the first direction.

14. The method as recited in claim 6, wherein a reconstructed version of the signal transmitted via the conductor is derived from at least one of the measurement signals.

7. A device for acquiring at least one signal transmitted via an electric conductor, the device being configured to acquire information concerning the signal transmitted via the conductor by obtaining two measurement signals that represent at least one of:

i) an electric field, and ii) a magnetic field, of the conductor, at at least two positions relative to a longitudinal coordinate of the conductor, the measurement signals being different than the signal transmitted via the conductor and the measurement signals not being transmitted through the conductor, and the device being configured to infer, from the measurement signals, the signal transmitted via the conductor, wherein a plurality of signals transmitted via the conductor are inferred from the measurement signals, the plurality of signals including a first signal transmitted in a first direction along the longitudinal coordinate and a second signal transmitted in a second direction opposite the first direction.

8. The device as recited in claim 7, wherein the device is configured to infer, from the measurement signals, a plurality of signals transmitted via the conductor, the plurality of signals including a first signal transmitted in a first direction along the longitudinal coordinate and a second signal transmitted in a second direction opposed to the first direction.

9. The device as recited in claim 7, wherein the device is configured to apply a multidimensional equalization, to infer the signal.

10. The device as recited in claim 7, wherein the device has at least two coupling elements for acquiring the at least one of the electric and the magnetic field, of the conductor at the at least two positions of the conductor.

11. The device as recited in claim 10, wherein the coupling elements include at least one of:

i) discrete coupling elements, ii) inductive coupling elements, and iii) capacitive coupling elements.

12. The device as recited in claim 11, wherein the at least one coupling element includes at least one of the following elements:

a coil, a capacitor, a coupling line, and an antenna.

15. The device as recited in claim 7, wherein a reconstructed version of the signal transmitted via the conductor is derived from at least one of the measurement signals.

18. The device as recited in claim 7, wherein the at least one signal transmitted via the electric conductor includes one of an Ethernet-based communications signal, a CAN (Controller Area Network) signal, and a FlexRay signal.