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:
Jul. 27, 2010
Filed:
Dec. 22, 2006
Pekka K. Viitaniemi, Espoo, FI;
Raimo Ikonen, Salo, FI;
Janne Paldan, Oulu, FI;
Nokia Corporation, Espoo, FI;
Abstract
An apparatus including an electrical energy storage device arranged to provide an output voltage that decreases with time; a reference clock; and a multi-mode controller having a first mode in which the reference clock is disabled and a second mode in which the reference clock is enabled, the multi-mode controller being operable, when in the first mode, to monitor a voltage provided by the electrical energy storage device and to change the mode of the controller from the first mode to the second mode when the monitored voltage falls beneath a threshold value and being operable, when in the second mode, to enable storage of electrical energy in the electrical energy storage device.