Longmont, CO, United States of America

Mark G Call

This inventor holds 4 USPTO granted patents. Top assignees: International Business Machines Corporation, Storage Technology Corporation. Active years: 1985-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mark G Call. Retrieved from https://idiyas.com/inventor/mark-g-call

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 4

Forward Citations = 51(Granted Patents)


Location History:

  • Boulder, CO (US) (1985)
  • Longmont, CO (US) (1989 - 2000)

Company Filing History:


Years Active: 1985-2000

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4 patents (USPTO):Explore Patents

Title: Mark G Call: Innovator in Data Storage Technologies

Introduction

Mark G Call is a notable inventor based in Longmont, Colorado, with a focus on advancements in data storage technologies. He holds a total of 4 patents that reflect his innovative contributions to the field.

Latest Patents

One of his latest patents is titled "System for gap positioning optimization in a tape drive." This system utilizes a pair of read heads positioned on either side of the write head to accurately determine the boundary between the inter-block gap and the adjoining data blocks. The servo mechanisms in the tape drive track the location of this boundary, ensuring that data is not overwritten during read/write operations. The system enhances precision by activating the upstream read head during tape acceleration to confirm the presence of the inter-block gap.

Another significant patent is "Encoding for pit-per-transition optical data recording." This encoding method is designed for optical disks using the pit-per-transition technique, which stabilizes the frequency spectral notch and minimizes interference with focus and tracking servomechanisms. The selected RLL (d,k) code words ensure that the lengths of pits and lands maintain a specific ratio, optimizing data recording efficiency.

Career Highlights

Throughout his career, Mark G Call has worked with prominent companies, including International Business Machines Corporation (IBM) and Storage Technology Corporation. His experience in these organizations has contributed to his expertise in data storage solutions.

Collaborations

Mark has collaborated with notable professionals in the field, including Jonathan James Ashley and Paul H Siegel. Their collective efforts have further advanced the technologies related to data storage.

Conclusion

Mark G Call's innovative work in data storage technologies has made a significant impact on the industry. His patents demonstrate a commitment to enhancing data recording and retrieval processes, showcasing his role as a key inventor in this field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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