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:
Mar. 09, 2004
Filed:
Apr. 08, 2002
Klaus Winter, Schwieberdingen, DE;
Hermann Winner, Karlsruhe, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for detecting and compensating for nonlinearities in a microwave radar system, in which a transmitted signal frequency-modulated according to a defined function is generated with a transmitting oscillator, and from the mixing of the transmitted signal with a received signal reflected from an object, a distance of the microwave radar system from the object is ascertained. In defined time windows, instead of a trigger voltage effecting frequency modulation, a defined constant test trigger voltage is switched to the transmitting oscillator; a reference signal ascertained in the context of the respective constant test trigger voltage, which signal corresponds to a frequency value of the transmitting oscillator, is employed to correct the characteristic for the frequency modulation and thus to compensate for nonlinearities.