This inventor holds 2 USPTO granted patents and 2 EPO patents. Top assignees: Nxp B.v., U.S. Philips Corporation. Active years: 1995-2010.
Company Filing History:
Years Active: 1995-2010
Title: Steffen Drews: Innovator in Fingerprint Detection and Data Carrier Technology
Introduction
Steffen Drews is a notable inventor based in Hamburg, Germany. He has made significant contributions to the fields of fingerprint detection and data carrier technology. With a total of 2 patents, his work showcases innovative solutions that address contemporary technological challenges.
Latest Patents
One of his latest patents is focused on fingerprint detection using a sweep-type imager with an optoelectronic speed sensor. This invention involves a method and arrangement for detecting skinprints, particularly fingerprints. It utilizes a strip sensor that detects the structure of the fingertip as it passes over the sensor. Additionally, an optoelectronic speed sensor continuously determines the finger's movement, allowing for the correction of distorted images caused by non-uniform movement. The speed sensor evaluates the Doppler shift of modulated laser light reflected from the moving finger surface.
Another significant patent by Steffen Drews involves portable data carriers with separate storage for read and write-inhibited memory. This technology is applicable in various fields, such as smart cards for banking transactions and access control. The invention allows for flexible adaptation of memory subdivisions in data carriers, enabling certain zones to be read or written based on stored inhibit information. This innovation enhances security and usability in data management.
Career Highlights
Steffen Drews has worked with prominent companies, including U.S. Philips Corporation and NXP B.V. His experience in these organizations has contributed to his expertise in developing cutting-edge technologies.
Collaborations
Throughout his career, Steffen has collaborated with notable professionals, including Rene Duijve and Wolfgang Tobergte. These partnerships have fostered innovation and the exchange of ideas in the field of technology.
Conclusion
Steffen Drews is a distinguished inventor whose work in fingerprint detection and data carrier technology has made a significant impact. His innovative patents reflect his commitment to advancing technology and enhancing security in various applications.

