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:
Sep. 30, 2014
Filed:
Sep. 26, 2008
Euan C. Smith, Cambridge, GB;
Richard Alan Page, Mountain View, CA (US);
Stefan Wurster, Livermore, CA (US);
Barry Thompson, Menlo Park, CA (US);
Euan C. Smith, Cambridge, GB;
Richard Alan Page, Mountain View, CA (US);
Stefan Wurster, Livermore, CA (US);
Barry Thompson, Menlo Park, CA (US);
Cambridge Display Technology Limited, Cambridgeshire, GB;
Abstract
A current matching control apparatus for matching a plurality of current sources and a plurality of current sinks, the plurality of current sinks having a drive current value controlled by a drive processor in accordance with a reference control current and wherein each output of the plurality of current sinks are connected to a common output node; a feedback circuit having an input connected to the common output node and an output connected to the drive processor, wherein the feedback circuit is arranged to match a voltage at the common output node to a reference voltage by communicating a signal to the drive processor to adjust the reference control current.