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:
Jul. 16, 2002
Filed:
Apr. 12, 2001
Klaus Winter, Schwieberdingen, DE;
Hermann Winner, Karlsruhe, DE;
Stephan Leinbaum, Oberriexingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method of detecting and compensating for non-linearities in a microwave radar system in which a transmitted signal, frequency modulated according to a predefined function, is generated using a transmit oscillator, and by mixing the transmitted signal with a received signal reflected by an object, a distance of the microwave radar system from the object is determined. In predefined time windows a predefined constant test control voltage is applied to the transmit oscillator instead of a control voltage effecting frequency modulation, preferably using a test ramp, the voltage/frequency characteristic of a module being updated during the time window in order to generate the function characteristic for frequency modulation taking into consideration the reference signal.