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. 07, 2013
Filed:
Jun. 18, 2009
Paul S. Rutkowski, Carmel, IN (US);
Randy J. Gardner, Bloomington, IN (US);
Michael J. Blackburn, Indianapolis, IN (US);
Michel A. Cadio, Carmel, IN (US);
Robert G. Davies, Carmel, IN (US);
James R. Kurtock, Carmel, IN (US);
Paul S. Rutkowski, Carmel, IN (US);
Randy J. Gardner, Bloomington, IN (US);
Michael J. Blackburn, Indianapolis, IN (US);
Michel A. Cadio, Carmel, IN (US);
Robert G. Davies, Carmel, IN (US);
James R. Kurtock, Carmel, IN (US);
Roche Diagnostics Operations, Inc., Indianapolis, IN (US);
Abstract
A control circuit and method for controlling a bi-stable display having bi-stable segments each capable of transitioning between an on state and an off state via application of a voltage are disclosed. The voltage is provided to a display driver from a charge pump, and supplied to individual ones of the bi-stable segments via outputs from the display driver in accordance with display instructions provided by a system controller. Both a bi-stable segment voltage level of at least one of the outputs of the display driver and a charge pump voltage level of the voltage are detected and compared to a valid bi-stable segment voltage level and a valid charge pump voltage level, respectively. A malfunction signal may be provided to the system controller if either of the detected voltage levels is not valid. The control circuit is useful in an electronic device such as, for example, a blood glucose measuring device.