Theodoor A Kleijne

Title: Theodoor A. Kleijne: Patents in Wireless Networking and Data Security

Introduction

Theodoor A. Kleijne is an inventor associated with Dreumel, the Netherlands, and NCR Corporation. His patent work includes innovations in wireless local area network transmission and the protection of sensitive data stored in memory. His portfolio includes 5 patents.

Latest Patents

Kleijne’s listed patents address communication reliability and physical safeguards for stored information.

“Wireless Local Area Network Transmission System” describes a method for detecting collisions during wireless message transmission. A transmitting station sends an initial portion of a message containing source and destination addresses, then pauses for a response from the destination station. If it does not receive a correct response, it sends a jamming signal during a designated window, alerting other stations that a collision has occurred.

“Data Security Device for Protecting Stored Data” describes a security device designed to erase sensitive information if its protective structure is tampered with. Thin-film conductive paths run in closely spaced, meandering patterns across the inner surface of a ceramic housing. If the paths are interrupted or short-circuited, a reset mechanism clears the protected memory.

Career Highlights

The patents highlight Kleijne’s work on practical engineering challenges: coordinating wireless transmissions when collisions occur and protecting stored data against physical interference. Both inventions use detection mechanisms to trigger a response when normal operating conditions are disrupted.

Collaborations

Kleijne is associated with NCR Corporation. His listed coworkers include Jan B. Goossens and Johannes A. De Bruin.

Conclusion

Theodoor A. Kleijne’s patent portfolio reflects contributions to wireless network communication and tamper-responsive data security, with inventions focused on reliable operation and protection of information.