Nanotron Gesellschaft Fur Mikrotechnik Mbh

Broadnet Invest Ag

Nanotron Technologies Gmbh

Zbigniew Ianelli

Manfred Koslar

Rainer Hach

Rainer Holz

Lars Menzer

A method and a device are described for determining data from a signal spread over at least one frequency base band representing the data. The method for generating a signal has a step of using at least one highly auto-correlated spread code sequence (C,C) associated with the frequency base band for determining a delay with which a modulated portion (P,P) of the data is spread on the signal. The method has further steps of determining said modulated portion from the signal using the delay and the spread code sequence (C,C), of demodulating the modulated portion (P,P) using phase shift keying, and of determining a remainder (R,R) of the data using the delay.

Signal representing data, method and device for generating such signal and method and device for determining the represented data from such signal

A method and a device are described for generating a signal representing data. The method for generating a signal has a step of modulating a portion (P,P) of the data using phase shift keying and spreading the modulated portion over the at least one frequency base band using at least one highly auto-correlated spread code sequence (C,C) associated with the frequency base band. The method for further has a step of delaying, according to a delay determined using a remainder (R,R) of the data (ID), the at least one spread code sequence (C,C) by a time delay wherein the modulated portion (MP,MP) is spread according the delayed spread code sequence (DC,DC).

The invention relates to a symmetrical multi-path method for determining the spatial distance between two transmitter-receivers. Both transmitter-receivers set off at least one signal round in each case. A signal round comprises the steps: The signal rounds are performed in such a way that the reply time intervals (T, T) are either identical or have a difference, in the case of performing more than one signal round set off by each transmitter-receiver an average difference, the amount of which is a maximum of 200 microseconds.

Symmetrical multi-path method for determining the distance between two transmitter-receivers

Surface-wave transducer device and identification system with such device

Transmission method in which angle-modulated pulses with temporally opposite angle modulation are generated in the receiver during the duration of the pulse, which pulses are superimposed by means of a first superimposing element ( ), in each case in pairs, into a folded pulse, whereby the folded pulses transmitted to the receiver, after a modulation process, carry information impressed upon them, and these folded pulses are filtered at the receiver through two parallel-connected, complementary dispersion filters with frequency-dependent group delay characteristics, whereby the frequency-dependent group delay characteristics of the two dispersion filters are matched to the angle-modulation, in each case, of one of the two pulses forming in their superposition the folded pulse, in such a way that at the output of the dispersion filter, in each case, a combined signal appears that consists of one compressed pulse with increased amplitude and one expanded pulse with decreased amplitude, whereby the signals at the outputs of both dispersion filters at the receiver are combined by means of a second superimposing element.

Method of transmission and device to carry out said method

Method for wireless information transfer, in particular for mobile communications, in which an input signal (s , g ) is subjected to a modulation in a transmitter ( to ) and reaches a receiver ( to ) through a transmission channel, whereby angle modulated pulses, carrying information and possessing a frequency spectrum, are generated in the transmitter in such a way that they can be time compressed in a receiver by means of a filter ( ) with frequency dependent, differential delay time, also known as group delay, in such a way, that pulses arise with shortened duration and increased amplitude compared to the emitted pulses, and at least a portion of the information is imprinted onto the pulses using an additional modulation, independent of the angle modulation, arid/or is used for controlling a parameter of the angle modulation that can then be registered in the receiver.

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Berlin, Germany

Zbigniew Ianelli