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. 04, 2012
Filed:
Nov. 02, 2006
Brian Hinman, Los Gatos, CA (US);
James T. Schley-may, Nevada City, CA (US);
Brian Hinman, Los Gatos, CA (US);
James T. Schley-May, Nevada City, CA (US);
2Wire, Inc., San Jose, CA (US);
Abstract
Various methods, apparatuses, and systems in which a back up power supply is provided to a network interface device are described. In one embodiment, an apparatus includes a network interface device (NID) located outside a building and a power supply unit located inside the building. The power supply unit has one or more ports that couple via a phone line to the NID to provide a power signal to the NID. The apparatus further includes a direct current (DC) back up power unit located in the NID. The DC back up power unit provides back up power to the NID. The NID is configured to periodically switch between receiving the power signal from the power supply unit and the DC back up power unit even when no fault condition exists in the power supply unit.