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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.:

US 8723532 B1

PDFFull Text
Date of Patent:
May. 13, 2014

Filed:

Jun. 10, 2009

Capacitive proximity device and electronic device comprising the capacitive proximity device

Applicants:

Ronald Jan Asjes, Eindhoven, NL;

Adrianus Petrus Johanna Maria Rommers, Eindhoven, NL;

Henricus Antonius Verspaget, Eindhoven, NL;

Cristian Presura, Eindhoven, NL;

Antonius Hermanus Maria Blom, Eindhoven, NL;

Inventors:

Ronald Jan Asjes, Eindhoven, NL;

Adrianus Petrus Johanna Maria Rommers, Eindhoven, NL;

Henricus Antonius Verspaget, Eindhoven, NL;

Cristian Presura, Eindhoven, NL;

Antonius Hermanus Maria Blom, Eindhoven, NL;

Assignee:

Koninklijke Philips N.V., Eindhoven, NL;

Attorney:
Primary Examiner:

Amy He

Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01N 27/22 (2006.01);
U.S. Cl.
CPC ...
G01N 27/221 (2013.01); G01R 27/2605 (2013.01);
Abstract

A capacitive proximity device for sensing a presence and/or absence of an object in the proximity of an electronic device includes an emission electrode capacitively coupled to a receiver electrode, an oscillator for generating an emission-signal being an alternating electric field between the emission electrode and the receiving electrode, and a sensing circuit connected to the receiving electrode. The sensing circuit receives a measured-signal from the receiver electrode and includes a first synchronous detection circuit together with a low-pass filter for generating an output-signal being proportional to a distance between the object and the electronic device. The sensing circuit further includes a noise-suppresser for reducing noise from the measured-signal before entering the first synchronous detection circuit.

Find Patent Forward Citations

Asjes, Ronald. (2014). Capacitive proximity device and electronic device comprising the capacitive proximity device (U.S. Patent No. 8723532). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8723532

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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