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For the Inventor, By the Inventor

Tucson, AZ, United States of America

Eric Rolf Christensen

USPTO Granted Patents = 15

Average Co-Inventor Count = 2.9

ph-index = 6

Forward Citations = 102(Granted Patents)


Company Filing History:

goldMedal14 out of 164,108 
 
International Business Machines Corporation
 patents
silverMedal1 out of 1 
 
Industrial Business Machines Corporation
 patent

Years Active: 1995-2015

where 'Filed Patents' based on already Granted Patents

15 patents (USPTO):
1. 8988815 - Dynamically controlling magnetoresitive bias (2015-03-24),
2. 8767326 - Dynamically controlling magnetoresistive bias (2014-07-01),
3. 8625226 - Fixing tap coefficients in a programmable finite-impulse-response equalizer (2014-01-07),
4. 8605380 - Technique for fixing tap coefficients in a programmable finite-impulse-response equalizer (2013-12-10),
5. 8132050 - Providing removable storage management services using removable storage error information (2012-03-06),
6. 8111473 - Method to evaluate a data storage device using magnetic spacing losses (2012-02-07),
7. 8094402 - Systems and methods for correcting magnetic tape dimensional instability (2012-01-10),
8. 7913117 - Providing removable storage management services using removable storage error information (2011-03-22),
9. 7870427 - Accessing removable storage management services to obtain replacement instructions indicating whether to replace removable storage (2011-01-11),
10. 7719782 - Fast forward magnetic tape cartridge at first mount (2010-05-18),
11. 7139142 - Determination of magnetic tape write quality employing write equalization transitions (2006-11-21),
12. 6256157 - Method and apparatus for removing noise spikes (2001-07-03),
13. 5920438 - Programmable digital centerline tracking threshold apparatus and method (1999-07-06),
14. 5877644 - Programmable digital envelope following threshold generation apparatus (1999-03-02),
15. 5457585 - Tape edge detector using off tape and on tape MR noise (1995-10-10),

Title: The Innovations of Eric Rolf Christensen in Magnetoresistive Technologies

Introduction

Eric Rolf Christensen is a prolific inventor based in Tucson, AZ, known for his significant contributions to the field of magnetoresistive technologies. With a remarkable portfolio consisting of 15 patents, his work primarily focuses on enhancing the efficiency and performance of tape drives through innovative solutions.

Latest Patents

Among his notable inventions is the patent for "Dynamically Controlling Magnetoresistive Bias." This technology involves the dynamic control of magnetoresistive (MR) bias in tape drives utilizing a processor device. The patent outlines a method where the median tape head amplitude is monitored during a calibration operation against predetermined thresholds. If the median tape head amplitude falls below these thresholds, the MR bias is dynamically adjusted to increase the amplitude, thereby extending the lifespan of the tape drive. This innovative approach not only enhances performance but also contributes to the reliability of tape drives in various applications.

Career Highlights

Eric has had an impressive career, working with leading technology companies. He has been associated with International Business Machines Corporation (IBM), where he contributed to the research and development of cutting-edge technologies. His experience at Industrial Business Machines Corporation also added to his extensive knowledge and expertise in the field.

Collaborations

Throughout his career, Eric has collaborated with several esteemed professionals, including Robert Allen Hutchins and Ernest Stewart Gale. These collaborations have fostered innovative ideas and led to successful developments in magnetoresistive technology, ensuring that his inventions remain influential in the industry.

Conclusion

Eric Rolf Christensen's contributions to magnetoresistive technologies demonstrate his commitment to innovation and excellence. His patents not only reflect his technical expertise but also highlight the importance of dynamic adjustments in enhancing device performance. As technology continues to evolve, the impact of his work in improving tape drive efficiency will undoubtedly resonate within the industry for years to come.

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