This inventor holds 2 USPTO granted patents. Top assignee: Mannesmann Vdo Ag. Active years: 2006-2007.
Company Filing History:
Years Active: 2006-2007
Title: Innovations by Theo Drijfhout
Introduction
Theo Drijfhout is a notable inventor based in Braunfels, Germany. He has made significant contributions to the field of navigation systems, particularly in enhancing the security and usability of multimedia systems. With a total of 2 patents, his work reflects a commitment to innovation and technological advancement.
Latest Patents
One of Drijfhout's latest patents is a motor vehicle navigation system featuring a protected storage medium. This invention specifies a navigation or multimedia system that checks whether a user is authorized to access files, such as roadmap data. The system includes mechanisms for verifying authorized use of files stored on a bulk storage medium, which are kept in encrypted form. The method requires the user to input two scrambled codes, which are then converted into vectors. A device identifier and the first scrambled code are used to calculate a key, which, along with the second scrambled code, generates an access authorization identifier. This identifier is compared with those for the files on the storage medium, allowing for decryption and authorized use of the files.
Another patent involves a method for enabling use rights on a file stored on a medium with other files. This method is designed for use by a single computer system or a limited number of local systems. A central station calculates scrambled codes containing a key for decrypting the files. The device identification number changes with each enabling operation, ensuring enhanced security. Once the codes are entered, the system calculates a new device identification number and uses it to generate an identifier for the file to be enabled.
Career Highlights
Theo Drijfhout is currently employed at Mannesmann VDO AG, where he continues to innovate in the field of navigation technology. His work has been instrumental in developing systems that prioritize user security and data integrity.
Collaborations
Drijfhout collaborates with Martin Thoone, a talented woman in the field, contributing to the advancement of their projects and innovations.
Conclusion
Theo Drijfhout's contributions to navigation systems demonstrate his dedication to innovation and security in technology. His patents reflect a forward-thinking approach that enhances user experience while ensuring data protection.