The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2002
Filed:
Apr. 26, 1999
Manfred Koslar, Berlin, DE;
Nanotron Gesellschaft fur Mikrootechnik mbH, Berlin, DE;
Abstract
Measuring and/or control system ( ) for detection of the distance of an object ( ) or of a person from a predetermined reference point, with a first transmitting/receiving device ( ) for generation and wireless transmission of a control signal to a separate second transmitting and/receiving device ( ), as well as for receipt of an acknowledgment signal generated from the second transmitting/receiving device ( ) upon receipt of the control signal, whereby both of the transmitting/receiving devices display on the transmitting side a signal source ( ) that generates as a control and/or as an acknowledgment signal, pulses that display during the duration of the pulse a monotonically falling or rising frequency, or that consists of a super-position of these types of pulses in pairs, the other current transmitting/receiving device ( ) displaying on the receiving side for time compression of the received pulses, at least one dispersion filter ( ) having a predetermined frequency-dependent signal transit time, which is matchedadapted to the transmitting side modulation such that the spectral signal portions of the control and/or acknowledgment signal, because of the frequency-dependent different signal transit time through the dispersion filter ( ), appears at its output essentially coincidentally and, therewith, with little temporal imprecision.