Company Filing History:

12 out of 1,438

3com Corporation

patents

1 out of 27,394

Hewlett-packard Development Company, L.p.

patents

Years Active: 2000-2013

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8472614 - Attenuation and termination circuit using impedance synthesis (2013-06-25),

2. 7660408 - Attenuation and termination circuit using impedance synthesis (2010-02-09),

3. 6859051 - Systems and methods for impedance synthesis (2005-02-22),

4. 6700387 - Systems and methods for impedance synthesis (2004-03-02),

5. 6697485 - Data signal attenuator and systems and methods for using same (2004-02-24),

6. 6661880 - System and method for embedding digital information in a dial tone signal (2003-12-09),

7. 6654461 - Synthesized telephone line ring signal impedance termination (2003-11-25),

8. 6573729 - Systems and methods for impedance synthesis (2003-06-03),

9. 6567472 - System and method for terminating a line by reflecting a scaled impedance (2003-05-20),

10. 6434161 - UART with direct memory access buffering of data and method therefor (2002-08-13),

11. 6377667 - Telephone line-assist powered apparatus with programmable hold current (2002-04-23),

12. 6338077 - Transfer function implementation using digital impedance synthesis (2002-01-08),

13. 6128311 - Method and system for interfacing parallelly interfaced devices through (2000-10-03),

Title: The Innovations of Spiro Poulis

Introduction

Spiro Poulis is a notable inventor based in West Jordan, UT (US). He has made significant contributions to the field of telecommunications, holding a total of 13 patents. His work focuses on improving signal processing and attenuation in telephone networks.

Latest Patents

One of his latest patents is titled "Attenuation and termination circuit using impedance synthesis." This invention discloses circuits designed to isolate and attenuate signals generated by a telephone network. In the disclosed embodiments, a metering pulse signal is isolated from the terminals of the connecting device and then attenuated with an impedance synthesized using a programmable digital signal processor. The digital signal processor is also utilized to synthesize a termination impedance for the connecting device. This termination impedance closely matches the characteristic impedance of the network, minimizing wave reflections and enhancing signal integrity.

Career Highlights

Throughout his career, Spiro Poulis has worked with prominent companies such as 3Com Corporation and Hewlett-Packard Development Company, L.P. His experience in these organizations has contributed to his expertise in telecommunications and signal processing.

Collaborations

Some of his notable coworkers include John P. Evans and Shayne Messerly. Their collaboration has likely fostered innovative ideas and advancements in their respective fields.

Conclusion

Spiro Poulis is a distinguished inventor whose work in telecommunications has led to valuable patents and advancements in signal processing technology. His contributions continue to impact the industry positively.

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