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:
Mar. 22, 2011
Filed:
Nov. 10, 2005
Willem Hendrik Groeneweg, Muri, CH;
Willem Hendrik Groeneweg, Muri, CH;
ST-Ericsson SA, Plan-les-Ouates, CH;
Abstract
Apparatus () comprising a voltage input () for applying an unfiltered voltage (V_unfil) and a current input () for receiving a bias current (Ib) from a current source. The apparatus () further comprises a differential filtering resistive circuit with a first current mirror () and a second current mirror (), being situated between a common output node () and said voltage input (). A first mirror circuit () for mirroring the bias current (Ib) to said first current mirror (), and a second mirror circuit () for mirroring a current (Ix) to said second current mirror () are employed. A filter capacitor () situated at the output side of the apparatus (), said filter capacitor () being connected on one side to said common output node () and on the other side to ground. The apparatus () provides a filtered output voltage (V_fil) at said common output node ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile