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:
Oct. 28, 2014
Filed:
Feb. 15, 2008
Ryan A. Sturmer, Durham, NC (US);
Michael G. Pollack, Durham, NC (US);
Vamsee K. Pamula, Durham, NC (US);
Vijay Srinivasan, Durham, NC (US);
Philip Y. Paik, San Diego, CA (US);
Ryan A. Sturmer, Durham, NC (US);
Michael G. Pollack, Durham, NC (US);
Vamsee K. Pamula, Durham, NC (US);
Vijay Srinivasan, Durham, NC (US);
Philip Y. Paik, San Diego, CA (US);
Advanced Liquid Logic, Inc., Research Triangle Park, NC (US);
Abstract
A method, circuit and apparatus for detecting capacitance on a droplet actuator, inter alia, for determining the presence, partial presence or absence of a droplet at an electrode on a droplet actuator by: (a) providing a droplet actuator comprising: (i) a substrate comprising electrodes arranged on the substrate for conducting droplet operations on a surface of the substrate; (ii) a capacitance detection circuit for detecting capacitance at the droplet operations surface at one or more of the electrodes; (b) detecting capacitance at the droplet operations surface at one or more of the electrodes; and (c) determining from the capacitance the presence, partial presence or absence of a droplet at the droplet operations surface at the electrode.