Company Filing History:
Years Active: 2005
Title: Jan Mårtensson: Innovator in Digital Content Protection
Introduction
Jan Mårtensson is a notable inventor based in Ljungsbro, Sweden. He has made significant contributions to the field of digital content protection, particularly through his innovative patent that addresses the challenges of securing digital data streams.
Latest Patents
Mårtensson holds a patent for a Content Protection scheme for a digital recording device. This invention allows a recording device for digital data streams, such as digital TV broadcasts or digitized music, to store copies of program content encrypted by a key unique to the recording device. The design discourages the distribution of program content, as intelligible playback would not be possible on another recording device with a different key. To simplify manufacturing, a portion of the key is embedded in hardware, while another portion is selected from candidates stored in a memory device. The key is determined by combining these portions according to predetermined rules, with the second portion being reselected at intervals. Additionally, only the payload portions of packets are encrypted, leaving header portions clear to facilitate functions like fast forward, rewind, and program search.
Career Highlights
Jan Mårtensson is currently associated with Nokia Corporation, where he continues to work on advancements in digital technology. His expertise in content protection has positioned him as a key player in the industry.
Collaborations
Mårtensson has collaborated with notable colleagues, including Jukka Antero Alve and Ola Lidholm, contributing to the development of innovative solutions in digital content security.
Conclusion
Jan Mårtensson's work in digital content protection exemplifies the importance of innovation in securing digital media. His contributions continue to influence the way digital content is recorded and protected.