Claims
- 1. A system for transmitting and receiving a signal between two parts, where a first part is a movable part and a second part is a stationary part, comprising:a data source for generating the signals; a transmitter for transmitting the signals to a receiver via a non-contacting transmission path, the transmission path having a band-pass characteristic; and a data sink for receiving data from the receiver; said transmitter having a signal processing circuit for increasing the slope of a leading and trailing edge of the signal generated by the data source such that reciprocal values of a rise and decay time of the signal are higher than a lower limit frequency of the transmission path; wherein an evaluation circuit in said receiver reconstructs the signals from pulses received from said transmission path generated by a differentiation of the signal emitted by said transmitter.
- 2. The device according to claim 1, the evaluation circuit comprises:an integrator for integrating pulses arriving from said transmission path and outputting an integrated signal to said data sink.
- 3. The device according to claim 2, wherein said evaluation circuit further comprises:a first comparator for detecting a positive pulse and a second comparator for detecting a negative pulse; and a memory element connected to said first and second comparator for storing polarity of the pulse which occurred last, using the output signals of said comparators; wherein the memory element outputs a signal to said data sink that corresponds to a stored condition.
- 4. The device according to claim 1, the evaluation circuit comprises:a first comparator for detecting a positive pulse and a second comparator for detecting a negative pulse; and a memory element connected to said first and second comparator for storing polarity of the pulse which occurred last, using the output signals of said comparators; wherein the memory element outputs a signal to said data sink that corresponds to a stored condition.
- 5. The device according to claim 1, wherein the transmitted signal is a digital signal.
- 6. A method for transmitting and receiving a signal between two parts, where a first part is a movable part and a second part is a stationary part, comprising the steps of:generating the signal using a data source; transmitting the signal to a receiver via a non-contacting transmission path with a transmitter having a signal processing circuit for increasing the slope of a leading and trailing edge of the signal generated by the data source such that reciprocal values of a rise and decay time of the signal are higher than a lower limit frequency of the transmission path; receiving data from the receiver with a data sink; and wherein an evaluation circuit in said receiver reconstructs the signal from pulses received from said transmission path generated by a differentiation of the signal emitted by said transmitter.
- 7. The method according to claim 6, the method further comprising the step of:integrating pulses arriving from said transmission path and outputting an integrated signal to said data sink with an integrator.
- 8. The method according to claim 7, the method further comprising the steps of:detecting a positive pulse with a first comparator and a negative pulse with a second comparator; storing the polarity of the pulse which occurred last, using the output signals of said comparators in a memory element connected to said first and second comparator; and outputting a signal to said data sink that corresponds to a stored condition with the memory element.
- 9. The method according to claim 6, the method further comprising the steps of:detecting a positive pulse with a first comparator and a negative pulse with a second comparator; storing the polarity of the pulse which occurred last, using the output signals of said comparators in a memory element connected to said first and second comparator; and outputting a signal to said data sink that corresponds to a stored condition with the memory element.
- 10. The method according to claim 6, wherein the transmitted signal is a digital signal.
Priority Claims (3)
Number |
Date |
Country |
Kind |
195 43 559 |
Nov 1995 |
DE |
|
195 43 558 |
Nov 1995 |
DE |
|
196 10 628 |
Feb 1996 |
DE |
|
Parent Case Info
This is a divisional application of U.S. patent application Ser. No. 09/068,884 filed Nov. 9, 1998 is a nat'l stage of PCT/DE96/02222 filed Nov. 21, 1996.
US Referenced Citations (8)