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:
Apr. 19, 2016
Filed:
Jul. 31, 2013
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Fujitsu Component Limited, Shinagawa-ku, Tokyo, JP;
Hiromitsu Soneda, Atsugi, JP;
Osamu Tsuboi, Kawasaki, JP;
Fumihiko Nakazawa, Kobe, JP;
Naoyuki Nagao, Shinagawa, JP;
Masakazu Hori, Shinagawa, JP;
FUJITSU LIMITED, Kawasaki, JP;
FUJITSU COMPONENT LIMITED, Tokyo, JP;
Abstract
A power strip includes: a first power line; a second power line between which and the first power line a power supply voltage is applied; a jack portion; a current meter configured to measure a current being supplied to an external electrical device from the jack portion; a first photocoupler including a first light emitting diode connected between the first power line and the second power line and configured to output a first output signal whose level is changed when the power supply voltage exceeds a first threshold; and a computing unit configured to calculate a power value by using instantaneous values of the current measured by the current meter and instantaneous values of the power supply voltage estimated from the length of a period when the level of the first output signal is changed.