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:
Dec. 31, 2019
Filed:
Jun. 21, 2017
Ntt Electronics Corporation, Yokohama-shi, Kanagawa, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Yasuharu Onuma, Kanagawa, JP;
Etsushi Yamazaki, Kanagawa, JP;
Tomohiro Takamuku, Kanagawa, JP;
Masahiro Tachibana, Kanagawa, JP;
Mitsuteru Yoshida, Kanagawa, JP;
Masahito Tomizawa, Kanagawa, JP;
Seiji Okamoto, Kanagawa, JP;
NTT ELECTRONICS CORPORATION, Yokohama-shi, Kanagawa, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
Fourier transform is performed on a reception signal to obtain a first calculation value. Fourier transform is performed on a known signal to obtain a second calculation value. The first calculation value is divided by the second calculation value to obtain a third calculation value. Inverse Fourier transform is performed on the third calculation value to obtain a fourth calculation value. A maximum value of an amplitude of the fourth calculation value and a sample point at which the maximum value is obtained are detected. The position of the known signal in the reception signal is detected from the sample point at which the maximum value is obtained.