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:
Sep. 08, 2015
Filed:
Aug. 01, 2012
Kazuo Shirakawa, Yokohama, JP;
Yoji Ohashi, Fucyu, JP;
Kazuo Shirakawa, Yokohama, JP;
Yoji Ohashi, Fucyu, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A detection and ranging system includes: a signal generator configured to generate M probe signals having different carrier frequencies; M transmitting elements configured to transmit the M probe signals; N receiving elements configured to receive an echo signal from a target; N demodulators provided for the N receiving elements, each of the demodulators being configured to generate a demodulated echo signal by demodulating an echo signal received by a corresponding one of the receiving elements by using at least one of the M probe signals, and to generate M sets of data signals corresponding to the M probe signals by filtering the demodulated echo signal in a frequency domain; and a signal processor configured to detect the target according to M×N sets of data signals generated by the N demodulators.