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For the Inventor, By the Inventor

Groebenzell, Germany

Hans-Joachim Grallert

This inventor holds 10 USPTO granted patents, plus 1 CIPO patent. Top assignee: Siemens Aktiengesellschaft. Active years: 1985-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Joachim Grallert. Retrieved from https://idiyas.com/inventor/hans-joachim-grallert

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

USPTO Granted Patents = 10

% Patents Active = 100.0

 

Average Co-Inventor Count = 1.1

ph-index = 7

Forward Citations = 132(Granted Patents)


Location History:

  • Grobenzell, DE (1986)
  • Groebenzell, DE (1985 - 1993)

Company Filing History:

goldMedal10 out of 30,874 
 
Siemens Aktiengesellschaft
 patents

Years Active: 1985-1993

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10 patents (USPTO):Explore Patents
1. 5224128 - Method and circuit arrangement for monitoring the operating condition of (1993-06-29),
2. 5151902 - Method and apparatus for quality monitoring of at least two transmission (1992-09-29),
3. 5095482 - Method of and apparatus of individually monitoring transmission sections (1992-03-10),
4. 4658239 - Differential pulse code modulation coder (1987-04-14),
5. 4651194 - Arrangement for multiplexing luminance and chrominance code words of (1987-03-17),
6. 4612573 - Method for clock rate conversion (1986-09-16),
7. 4569058 - Transmission system (1986-02-04),
8. 4541102 - High-speed difference pulse code modulation coder (1985-09-10),
9. 4540973 - Quantizer for a DPCM encoder (1985-09-10),
10. 4536880 - Digital DPCM-coder having a high processing speed (1985-08-20),

Title: The Innovations of Hans-Joachim Grallert

Introduction

Hans-Joachim Grallert is a notable inventor based in Groebenzell, Germany. He has made significant contributions to the field of digital signal transmission, holding a total of 10 patents. His work focuses on enhancing the reliability and quality of digital communication systems.

Latest Patents

Grallert's latest patents include a method and circuit arrangement for monitoring the operating condition of digital signal receivers. This innovation allows for the recognition of a 'no light' condition at the signal input of a receiving terminal. By storing measured values that correspond to the electrical signal level of received signals at given time intervals, the system can detect significant changes in amplitude, thereby reporting a 'no light' condition when necessary. Another significant patent involves a method for quality monitoring of at least two series-connected transmission sections in a digital signal transmission link. This method utilizes error message bytes to accumulate parity errors, providing a quality criterion for the monitored transmission link.

Career Highlights

Grallert has had a distinguished career, primarily working with Siemens Aktiengesellschaft, a leading global technology company. His expertise in digital signal processing has positioned him as a key figure in the development of advanced communication technologies.

Collaborations

Throughout his career, Grallert has collaborated with notable colleagues, including Alexander Starck and Werner Liegl. These partnerships have contributed to the advancement of innovative solutions in the field of digital communications.

Conclusion

Hans-Joachim Grallert's contributions to the field of digital signal transmission are significant and impactful. His patents reflect a commitment to improving communication technology, ensuring reliability and quality in digital systems.

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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