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:
Nov. 16, 2004
Filed:
Oct. 04, 2002
Ernst Bretschneider, Erfurt, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
To provide a digitally switchable current source, by means of which no dangerous current spikes are produced at the switching instants, two digitally controllable switching transistors (MNn , MNn ) are arranged in series with at least two parallel-arranged transistors (MNn) which are controllable by means of an analog voltage, while one of the two switching transistors is switched with the relevant inverted control signal and each one of the two switching transistors (MNn , MNn ) is arranged in the current circuit whose current is to be controlled by the current source.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile