IP Library Granted Patent US 12,080,937
Granted Patent B2
US 12,080,937 · App. 17/607,201 · Granted Sep 3, 2024

Heatable vehicle window having a transponder

Inventors: Thomas Holtstiege (Schwelm, DE); Tim Schmitz (Aachen, DE); David Bertel (Aachen, DE)
Assignee: SAINT-GOBAIN GLASS FRANCE
H01Q1/1278B60J1/001G06K7/10366H01Q15/14H05B3/86H05B2203/016
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Quick Facts
Patent No.
US 12,080,937
App. No.
17/607,201
Granted
Sep 3, 2024
Kind
B2
Abstract

A vehicle window includes a glass pane, an electrically conductive functional component, at least two busbars, wherein the electrically conductive functional component is electrically conductively connected to the busbars such that when an electrical voltage is applied to the busbars, a current can flow through the electrically conductive functional component, a transponder having an antenna and a control unit for communicating with a reader, wherein the control unit includes a memory for storing identification data, wherein a reflector is associated with and spaced apart from the transponder for increasing an antenna gain of the antenna, wherein the reflector is formed at least partially by one of the two busbars.

Claims (25)

1. A vehicle window, comprising:

a glass pane,

an electrically conductive functional component,

at least two busbars, wherein the electrically conductive functional component is electrically conductively connected to the at least two busbars such that when an electrical voltage is applied to the at least two busbars, a current can flow through the electrically conductive functional component,

a transponder having an antenna and a control unit for communicating with a reader, wherein the control unit includes a memory for storing identification data,

wherein a reflector is associated with and spaced apart from the transponder for increasing an antenna gain of the antenna, wherein the reflector is formed at least partially by one of the two busbars.

2. The vehicle window according to claim 1 , wherein the reflector includes at least two parallel sections of a busbar, and wherein the sections of the busbar are arranged such that the sections are provided for reflection of a signal of the antenna to be transmitted.

3. The vehicle window according to claim 2 , wherein the transponder or a surface of the orthogonal projection of the transponder is arranged centrally between two parallel sections of a busbar.

4. The vehicle window according to claim 1 , wherein the reflector is implemented as a square, a rectangle, or a trapezoid.

5. The vehicle window according to claim 1 , wherein the transponder or a surface of the orthogonal projection of the transponder is arranged in a region of the vehicle window that is transparent to electromagnetic radiation in a frequency range of the antenna.

6. The vehicle window according to claim 1 , wherein the reflector borders a region of the vehicle window that is transparent to electromagnetic radiation in a frequency range of the antenna.

7. The vehicle window according to claim 1 , wherein the electrically conductive functional component is implemented as a conductor system with a heating function.

8. The vehicle window according to claim 7 , wherein the conductor system has a plurality of resistance wires as heating conductors, which run substantially perpendicular to the antenna of the transponder.

9. The vehicle window according to claim 1 , wherein a first busbar runs in the vicinity of a first pane edge and a second busbar runs in the vicinity of a second pane edge opposite the first pane edge.

10. The vehicle window according to claim 1 , wherein at least one of the two busbars has an extension with a bend.

11. The vehicle window according to claim 1 , wherein the glass pane is joined to a second glass pane via a thermoplastic intermediate layer.

12. The vehicle window according to claim 1 , wherein the vehicle window is a motor vehicle window.

13. The vehicle, including a vehicle window according to claim 1 , wherein the vehicle is a motor vehicle.

14. A method for producing a vehicle window according to claim 1 , comprising:

fastening the transponder having an antenna and a control unit for communicating with a reader on a surface of the glass pane, wherein the control unit has a memory for storing identification data, and

arranging the reflector associated with and spaced apart from the transponder on a surface of the glass pane, wherein the reflector is formed at least partially by one of the two busbars and is provided for increasing an antenna gain of the antenna.

15. A method comprising installing the vehicle window according to claim 1 in a transportation vehicle for travel on land, in the air, or on water.

16. The method according to claim 15 , wherein the transportation vehicle is a motor vehicle.

17. The method according to claim 15 , wherein the vehicle window is a windshield, a rear window, or a roof panel.

18. The vehicle window according to claim 1 , wherein the reflector is out of contact with the transponder.

Assignments (2)
NUNC PRO TUNC ASSIGNMENT Recorded May 16, 2025
From: SAINT-GOBAIN GLASS FRANCE
To: SAINT-GOBAIN SEKURIT FRANCE
Reel/Frame 071969/0743 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2021
From: HOLTSTIEGE, THOMAS; SCHMITZ, TIM; BERTEL, DAVID
To: SAINT-GOBAIN GLASS FRANCE
Reel/Frame 057948/0547 →
Priority Claims (1)
EP 19181981 · Jun 24, 2019 · regional
Continuity (1)
Related Publication 20220223995A1 · Jul 14, 2022