DATA TRANSMISSION SYSTEM AND METHOD FOR TRANSMITTING DATA IN A DATA TRANSMISSION SYSTEM

• US 20100142965A1
• Filed: 07/10/2008
• Published: 06/10/2010
• Est. Priority Date: 08/06/2007
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Breyer, Florian, Randel, Sebastian, Walewski, Joachim
• Granted Patent: US 9,184,836 B2
• Time in Patent Office: Days
• US Class Current: 398/119
• CPC Class Codes: H04B 10/1141 One-way transmission

Abstract

A data transmission system has a light-emitting transmitter, a light-receiving receiver and a data transmission channel based on incoherent light. A pre-equalization device connected upstream of the transmitter is provided for the purpose of pre-equalizing a data signal which is to be transmitted from the transmitter to the receiver via the data transmission channel. The data transmission channel has constant transmission conditions within prescribed limits. The data signal to be transmitted is transmitted using a prescribed maximum bandwidth of the transmitter.

Claims

1-19. -19. (canceled)

20. A data transmission system having a light-emitting transmitter, a light-receiving receiver and a data transmission channel based on incoherent light, comprising:

a pre-equalization device arranged upstream of the transmitter configured to pre-equalize a data signal to be transmitted from the transmitter to the receiver by way of the data transmission channel, wherein

the data transmission channel has constant transmission conditions within predescribed limits, and

the transmission of the data signal to be transmitted takes place with a predetermined maximum bandwidth of the transmitter.

21. The data transmission system as claimed in claim 20, wherein the data transmission channel is not bandwidth restricted.

22. The data transmission system as claimed in claim 20, wherein a targeted data transmission of the data signal in a free space between the transmitter and the receiver is used as the data transmission channel.

23. The data transmission system as claimed in claim 22, wherein the data transmission channel does not have any diffuse reflections.

24. The data transmission system as claimed in claim 20, wherein the data transmission channel is embodied as a point-to-point connection between the transmitter and the receiver.

25. The data transmission system as claimed in claim 20, wherein a bandwidth restriction of the data transmission channel is greater than the bandwidth of the transmitter and of the receiver.

26. The data transmission system as claimed in claim 20, wherein the data transmission channel allows a data transmission only from the transmitter to the receiver.

27. The data transmission system as claimed in claim 20, wherein the transmitter is a light-emitting diode (LED) selected from a group consisting of a white light LED and an infrared LED.

28. The data transmission system as claimed in claim 20, wherein the transmitter is a fluorescent tube.

29. The data transmission system as claimed in claim 20, wherein the transmitter is a laser.

30. The data transmission system as claimed in claim 20, wherein the transmitter is a bulb.

31. The data transmission system as claimed in claim 20, wherein the receiver is a photodiode, the photodiode being a PIN diode.

32. The data transmission system as claimed in claim 20, further comprising a pre-equalizer that is configured to supply the data signal and is coupled to the receiver in order to implement a pre-equalization which is arranged downstream of the reception of the data signal.

33. A method for transmitting data in a data transmission system having a light-emitting transmitter, a light-receiving receiver and a data transmission channel based on incoherent light, comprising:

arranging a pre-equalization device upstream of the transmitter, the pre-equalization device being configured to pre-equalize a data signal to be transmitted from the transmitter to the receiver by way of the data transmission channel, wherein

the data transmission channel has constant transmission conditions within predescribed limits, and

the transmission of the data signal takes place with a predescribed maximum bandwidth of the transmitter.

34. The method as claimed in claim 33, wherein the data transmission channel is not bandwidth restricted.

35. The method as claimed in claim 33, wherein a targeted data transmission of the data signal in a free space, without diffuse reflections, between the transmitter and the receiver is used as the data transmission channel.

36. The method as claimed in claim 35, wherein a point-to-point connection between the transmitter and the receiver is used as the data transmission channel.

37. The method as claimed in claim 33, wherein a bandwidth restriction of the data transmission channel is greater than the bandwidth of the transmitter and of the receiver.

38. The method as claimed in claim 33, wherein the data transmission channel allows a data transmission only from the transmitter to the receiver.