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. 22, 2017
Filed:
Sep. 06, 2013
Nec Corporation, Minato-ku, Tokyo, JP;
Shigeki Shinoda, Tokyo, JP;
Tetsuya Yoshinari, Tokyo, JP;
Shohei Kinoshita, Tokyo, JP;
Hiromi Yamamoto, Tokyo, JP;
Masatake Takahashi, Tokyo, JP;
Yasuhiro Sasaki, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A signal acquisition unit () acquires a signal. From the signal acquired by the signal acquisition unit (), a detection signal extraction unit () extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit () determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.