Granted Patent B2

US 12,626,076 · App. 18/925,562 · Granted May 12, 2026

Inventors: Matthias Gareis (Nuremberg, DE); Maya Radzinski (Columbia, MD); Andreas Schiessl (Munich, DE)

Assignee: Rohde & Schwarz GmbH & Co. KG

G06K7/10297

Abstract

Claims (50)

1 . A system for scanning persons and/or objects, comprising:

at least two scan modules for transmitting and/or receiving radio frequency (RF) signals with respect to the persons and/or objects, each of said at least two scan modules comprising at least one transmit antenna and/or at least one receive antenna and/or at least one transceiver,

a crossing-through passage to be passed by the persons and/or objects, and

a processing unit connected to the at least two scan modules,

wherein the at least two scan modules are angled to allow reflections of the RF signals from at least one of the at least two scan modules to at least one other one of the at least two scan modules,

wherein the at least two scan modules are partially or pairwise synchronized, and

wherein synchronization concerns code multiplexing.

2 . The system according to claim 1 ,

wherein at least one of the at least two scan modules comprises or is a scan panel, or

wherein at least one of the at least two scan modules comprises multiple transmit antennas and/or multiple receive antennas and/or multiple transceivers.

3 . The system according to claim 1 ,

wherein the at least two scan modules are symmetrically angled with respect to an axis of symmetry or a center axis at an angle of more than 0 and less than 90 degrees or at an angle between 30 and 70 degrees.

4 . The system according to claim 3 ,

wherein the axis of symmetry or the center axis runs parallel or substantially parallel to the crossing-through passage, or

wherein the crossing-through passage is symmetric or substantially symmetric to the axis of symmetry or the center axis.

5 . The system according to claim 1 ,

wherein the processing unit is configured to synchronize the transmitting by the at least two scan modules with the receiving by the at least two scan modules, especially with respect to a part or at least one pair or each of the at least two scan modules.

6 . The system according to claim 1 ,

wherein the processing unit is configured to use corresponding reflections of the RF signals from the persons and/or objects, caused by at least one of the at least two scan modules, to at least one other one of the at least two scan modules, especially to improve scan quality, or

wherein the processing unit is configured to use corresponding reflections of the RF signals from the persons and/or objects, caused by at least one of the at least two scan modules, to at least one same one of the at least two scan modules.

7 . The system according to claim 6 ,

wherein the processing unit is configured to combine the corresponding reflections of the RF signals from the persons and/or objects, caused by the at least one of the at least two scan modules, to the at least one other one of the at least two scan modules with the corresponding reflections of the RF signals from the persons and/or objects, caused by the at least one of the at least two scan modules, to the at least one same one of the at least two scan modules.

8 . The system according to claim 5 ,

wherein the processing unit is configured to obtain multiple squared channels, especially for calculating a scan image, by synchronizing the transmitting by the at least two scan modules with the receiving by the at least two scan modules.

9 . The system according to claim 1 ,

wherein the at least two scan modules are angled with crowns, or

wherein at least two of the at least two scan modules are arranged in different planes.

10 . The system according to claim 1 ,

wherein the system further comprises a floor having RF mirror functionality, and

wherein the processing unit is configured to use the floor as mirror channels.

11 . The system according to claim 1 ,

wherein the at least two scan modules comprise or are two sets of angled scan modules facing in that create a portal for the crossing-through passage.

12 . The system according to claim 11 ,

wherein the two sets of angled scan modules form an X-geometry or an X-like geometry or a parenthesis-geometry or a parenthesis-like geometry.

13 . The system according to claim 1 ,

wherein the at least two scan modules comprise or are three pairs of scan modules in an octagon or an octagon-like configuration, especially with two sides open for the crossing-through passage.

14 . The system according to claim 1 ,

wherein at least a part or at least one pair or each of the at least two scan modules is rotatory and/or translatory movable.

15 . The system according to claim 1 ,

wherein the processing unit is configured to distinguish and/or classify the objects based on different scan scenarios with multiple objects.

16 . A method for scanning persons and/or objects, comprising the steps of:

transmitting and/or receiving radio frequency (RF) signals with respect to the persons and/or objects with the aid of at least two scan modules, each of said at least two scan modules comprising at least one transmit antenna and/or at least one receive antenna and/or at least one transceiver,

providing a crossing-through passage to be passed by the persons and/or objects,

arranging the at least two scan modules such that the at least two scan modules are angled to allow reflections of the RF signals from at least one of the at least two scan modules to at least one other one of the at least two scan modules, and

a processing unit synchronizing the transmitting by the at least two scan modules with the receiving by the at least two scan modules, especially with respect to at least one pair or the at least two scan modules,

wherein synchronization concerns code multiplexing.

17 . The method according to claim 16 ,

wherein the method further comprises the step(s) of:

using corresponding reflections of the RF signals from the persons and/or objects, caused by at least one of the at least two scan modules, to at least one other one of the at least two scan modules, especially to improve scan quality, or

using corresponding reflections of the RF signals from the persons and/or objects, caused by at least one of the at least two scan modules, to at least one same one of the at least two scan modules.

Assignments (1)

Continuity (1)

References Cited (13)