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:
Jun. 16, 2015
Filed:
Jun. 30, 2009
Douglas Piasecki, Austin, TX (US);
Thomas S. David, Austin, TX (US);
Timothy Thomas Rueger, Austin, TX (US);
Stefan Mastovich, Austin, TX (US);
Jia-hau Liu, Austin, TX (US);
Douglas Piasecki, Austin, TX (US);
Thomas S. David, Austin, TX (US);
Timothy Thomas Rueger, Austin, TX (US);
Stefan Mastovich, Austin, TX (US);
Jia-Hau Liu, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
An LCD controller includes a charge pump for generating a charge voltage responsive to an external voltage and a clock signal. The controller further includes an oscillator for generating the clock signal responsive to an oscillator control signal. An LCD driver voltage circuit generates a plurality of LCD driver voltages for driving segments of an associated LCD display. A loop control circuit within the LCD controller monitors an LCD driver voltage from the LCD driver voltage circuit and generates the oscillator control signal responsive thereto to enable and disable the oscillator.