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. 19, 2014
Filed:
Dec. 22, 2011
Lizhong Zhu, Waterloo, CA;
George Soliman Mankaruse, Kitchener, CA;
Hongwei Liu, Ottawa, CA;
Perry Jarmuszewski, Waterloo, CA;
Lizhong Zhu, Waterloo, CA;
George Soliman Mankaruse, Kitchener, CA;
Hongwei Liu, Ottawa, CA;
Perry Jarmuszewski, Waterloo, CA;
BlackBerry Limited, Waterloo, CA;
Abstract
A power distribution network includes multiple charge storage components and multiple charging circuits to control the charging and discharging of the charge storage components, which may comprise a battery and a supercapacitor. By appropriate arrangement and selection of the storage components, ripple in the power supply voltage, whose propagation to other components relying on the power distribution network may cause an audible buzz, may be significantly reduced. Additionally, appropriate arrangement and selection of the storage components, electromagnetic interference may also be significantly reduced. Optionally, an electromagnetic interference filter may be placed between the charge storage components.