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:
Sep. 23, 2003
Filed:
Jul. 27, 2001
Karl Yarnos Eisenhauer, Glen Forrest, AU;
John Baxter, Chatswood, AU;
Bishop Innovation Limited, North Ryde, AU;
Abstract
A sensor for determining the position of a moveable surface having patterned regions is disclosed. The sensor includes an ASIC, at least one lens, and at least one EMR source. The ASIC includes at least one array of EMR sensitive detectors and processing means. The EMR source illuminates the surface. The lens focuses the reflected EMR from the surface and generates an image on the array of EMR sensitive detectors corresponding to the pattern on the surface. The ASIC, the one lens, and the one EMR source are all enclosed in a single housing providing accurate optical alignment of these elements and integrated as a single replaceable module. The processing means of the ASIC processes the image to determine the position of the pattern on the surface. The ASIC and the EMR source are both mounted on a PCB and the PCB is mounted in the housing.