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, 2008
Filed:
Apr. 06, 2006
Philip J. Sieh, Chandler, AZ (US);
William D. Mcwhorter, Phoenix, AZ (US);
Bradley C. Stewart, Austin, TX (US);
Philip J. Sieh, Chandler, AZ (US);
William D. McWhorter, Phoenix, AZ (US);
Bradley C. Stewart, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
'Electrical field ('E-field') sensor systems that sense displacement or change in displacement of one body relative to another.' In general, the bodiesare within an electrical field and displacement of a body causes a change in the E-field. A field sensordetects this change and a processortranslates it to a change in position of the displaced body. The E-fields are generated by electrodes (or an electrode and a ground member) that generate the E-field. The systems include detectorsthat detect changes in the E-field, such as capacitance, and transmit these to the processor