Bad Camberg, Germany

Martin Plantholt

This inventor holds 4 USPTO granted patents. Top assignee: Deutsche Thomson-Brandt Gmbh. Active years: 1989-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Martin Plantholt. Retrieved from https://idiyas.com/inventor/martin-plantholt

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 = 1.7

ph-index = 2

Forward Citations = 48(Granted Patents)


Location History:

  • Hemmingen, DE (1989)
  • Bad Camberg, DE (1993)
  • Limburg, DE (1996)

Company Filing History:


Years Active: 1989-1996

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4 patents (USPTO):Explore Patents

Title: Martin Plantholt: Innovator in Television Signal Technology

Introduction

Martin Plantholt is a notable inventor based in Bad Camberg, Germany. He has made significant contributions to the field of television signal technology, holding a total of 4 patents. His work focuses on enhancing the quality and compatibility of television signals, particularly in relation to aspect ratios.

Latest Patents

One of his latest patents is a device for reproducing picture signals in letter-box format. This apparatus is designed to record and reproduce television signals transmitted in the letter-box format, where 16:9 aspect ratio picture information is sandwiched between black areas. The device includes a luminance channel, an adaptive filter, and a digital chrominance decoder, which separates the television signal into chrominance and luminance components. Another significant patent involves generating a compatible 4:3 letterbox format television signal. This process includes vertically transcoding a wide aspect ratio 16:9 progressive scan television signal and producing a difference signal that enhances the display quality.

Career Highlights

Martin Plantholt is currently employed at Deutsche Thomson-Brandt GmbH, where he continues to innovate in the field of television technology. His work has been instrumental in advancing the way television signals are processed and displayed.

Collaborations

Throughout his career, Martin has collaborated with notable colleagues such as Hans-Joachim Platte and Heinz-Werner Keesen. These collaborations have contributed to the development of advanced technologies in the television industry.

Conclusion

Martin Plantholt's contributions to television signal technology have made a lasting impact on the industry. His innovative patents and collaborative efforts continue to shape the future of television broadcasting.

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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