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:
May. 19, 2009
Filed:
Jun. 25, 2003
Guillaume DE Cremoux, Nijmegen, NL;
Guillaume De Cremoux, Nijmegen, NL;
DSP Group Switzerland AG, Zurich, CH;
Abstract
An improved capacitive feedback circuit () comprises a feedback capacitor () having its output terminal connected to a high-impedance node (N). More particularly, the improved capacitive feedback circuit comprises a first branch () having a bias current source (), an amplifying element (), and a current sensor () connected in series, the amplifying element having a high-impedance control terminal (). The feedback capacitor () has its output terminal connected to said control terminal (). A current-to-voltage converting feedback loop () has a high-impedance output terminal () connected to said feedback capacitor output terminal.