# US 2020/0403628 A1 · Systems for transporting externally received signals within a motor vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0403628 A1 - Document ID: US20200403628A1 - Status: Published application - Kind: A1 - Application number: 16/969,658 - Filed: 2019-01-21 - Published: 2020-12-24 - Earliest claimed: 2018-02-20 - Assignees: Audi AG - Applicants: Audi AG - Inventors: Jürgen SPEHL - Web page: https://patentgrep.com/patent/US20200403628A1 ## CPC - H03M 1/02: Reversible analogue/digital converters - H04B 1/40: Circuits - H03M 1/662: {Multiplexed conversion systems} - H03M 1/74: Simultaneous conversion - H04B 1/28: the receiver comprising at least one semiconductor device having three or more electrodes - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04B 1/0458: {Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages (matching circuits in general H03H)} - H04B 1/18: Input circuits, e.g. for coupling to an antenna or a transmission line (coupling networks between antennas or lines and receivers independent of the nature of the receiver H03H) - H04B 1/3822: specially adapted for use in vehicles (H04B1/3827 takes precedence) - H03M: CODING; DECODING; CODE CONVERSION IN GENERAL (using fluidic means F15C4/00; optical analogue/digital converters G02F7/00; coding, decoding or code conversion, specially adapted for particular applications, see the relevant subclasses, e.g. G01D, G01R, G06F, G06T, G09G, G10L, G11B, G11C, H04B, H04L, H04M, H04N; ciphering or deciphering for cryptography or other purposes involving the need for secrecy G09C) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present disclosure relates to a system for exchanging signals between a device of a vehicle and an external apparatus outside the vehicle via at least one antenna of the vehicle, wherein high-frequency signals are exchanged between the at least one external apparatus and the at least one antenna of the vehicle via electromagnetic waves, wherein the at least one antenna is connected via at least one first path to a first end of a line of the vehicle, and the device is connected via at least one second path to a second end of the line of the vehicle, wherein the system has at least one frequency reduction module which is arranged along at least one of the paths, and wherein the at least one frequency reduction module is designed to adjust a value of a frequency of the high-frequency signals to a low value prior to transport along the line. ## Claims ### Claim at position 1 -8. (canceled) ### Claim 9 A system, comprising: a vehicle comprising: a device; an analog-to-digital converter; a digital-to-analog converter; a frequency conversion module; and an antenna; and an external apparatus outside the vehicle, wherein the device of the vehicle is configured to exchange high-frequency signals having a high value of frequency between the device of the vehicle and the external apparatus via the antenna of the vehicle using electromagnetic waves, wherein the antenna is connected via a first path to a first end of a line of the vehicle, and the device is connected via a second path to a second end of the line of the vehicle, wherein the analog-to-digital converter is arranged along at least the first path or the second path, and is configured to digitize the high-frequency signals prior to transport along the line, wherein the digital-to-analog converter along at least the first path or the second path is configured to analogize the signals after the transport along the line, and wherein the frequency conversion module is arranged along at least the first path or the second path. ### Claim 10 (depends on 9) The system of claim 9, wherein the frequency conversion module is a frequency reduction module configured to adjust the high value of the frequency of the high-frequency signals to a low value prior to transport along the line. ### Claim 11 (depends on 9) The system of claim 9, wherein the conversion module is a frequency increasing module configured to adjust low-frequency signals back to the high value of the frequency after transport along the line. ### Claim 12 (depends on 9) The system of claim 9, wherein the antenna, the frequency reduction module, and the analog-to-digital converter are arranged on a module along the first path. ### Claim 13 (depends on 9) The system of claim 9, wherein the first path to the first end of the line of the vehicle is made of electrically conductive metal. ### Claim 14 (depends on 9) The system of claim 9, wherein the high value of the frequency of the high-frequency signals is at least 5 GHz. ### Claim 15 A method for exchanging signals between a device of a vehicle and an external apparatus outside the vehicle, the method comprising: exchanging high-frequency signals having a high value of frequency between the device of the vehicle and the external apparatus via an antenna of the vehicle using electromagnetic waves; digitalizing, by an analog-to-digital converter of the vehicle, the high-frequency signals prior to transport along a line connecting the device of the vehicle and the antenna of the vehicle; analogizing, by a digital-to-analog converter, the high-frequency signals after transport along the line; adjusting, by a frequency reduction module of the vehicle, the high value of the frequency of the high-frequency signals to a low value prior to transport along the line; and adjusting, by a frequency increasing module, low-frequency signals back to the original high value of the frequency after transport along the line. ### Claim 16 (depends on 15) The method of claim 15, wherein the high value of the frequency of the high-frequency signals is at least 5 GHz. ### Claim 17 (depends on 15) The method of claim 15, wherein the antenna is connected via a first path to a first end of a line of the vehicle, and the device is connected via a second path to a second end of the line of the vehicle. ### Claim 18 (depends on 15) The method of claim 15, wherein the first path to the first end of the line of the vehicle is made of electrically conductive metal.