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. 15, 2013
Filed:
Sep. 07, 2009
Holger Moench, Vaals, NL;
Mark Carpaij, MJ's-Hertogenbosch, NL;
Alexander Van Der Lee, Venlo, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The invention relates to a velocity determination apparatus for determining a relative velocity between a first object (), to which the velocity determination apparatus is attachable, and a second object (). The velocity determination apparatus comprises a laser () having a laser cavity () for emitting first radiation (), which is reflected by the second object (), wherein the reflected radiation interferes with the first radiation () within the laser cavity (). An interference signal detector () detects an interference signal depending on the interference within the laser cavity () and a velocity determination unit () determines the relative velocity based on the interference signal. A reliability value determination unit () determines a reliability value for indicating the reliability of the determined relative velocity based on at least one of the group consisting of the detected interference signal, the determined relative velocity and a characteristic of the laser.