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:
Aug. 31, 1999
Filed:
May. 06, 1997
Akira Iihoshi, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A multibeam FM radar system has an FM radar module for transmitting beams of FM signals whose frequencies linearly vary in rising and falling periods, in respective different directions with adjacent ones of the beams overlapping each other, receiving echo signals from a given beam, and mixing the FM signals and the echo signals into beat signals corresponding to said given beam. The multibeam FM radar system also has a main radar circuit including a central processing unit for identifying pairs of beat frequencies in the beat signals corresponding to said given beam, and processing the pairs of the frequencies to calculate distances up to and/or relative speeds with respect to objects within said given beam which have produced the echo signals, while comparing the frequencies within said identified pairs of beat frequencies to beat frequencies within a beam adjacent to said given beam to produce a detected result corresponding to an object producing echo signals within said given beam.