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:
Nov. 17, 2009
Filed:
Apr. 26, 2005
Martin Dieter Liess, Wiesbaden, DE;
Martin Dieter Liess, Wiesbaden, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
In an apparatus for handling sheet material or an optical input device, for example, which employs a relative movement sensor () utilizing the so-called 'self-mixing' effect of a laser diode, a band pass filter () is provided for filtering the electric signal resulting from measurement of the electric signal to reduce or substantially eliminate the effects of both the low frequency carrier signal and the high frequency noise present in such a signal. As a result, the precision of the laser self-mixing translation measurements is significantly improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile