Company Filing History:

13 out of 3,523

Harris Corporation

patents

1 out of 27,375

Matsushita Electric Industrial Co., Ltd.

Years Active: 1994-2008

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7409004 - Hybrid polar modulator differential phase Cartesian feedback correction circuit for power amplifier linearization (2008-08-05),

2. 6795492 - Configurable exciter (2004-09-21),

3. 6587018 - Notch filter and method (2003-07-01),

4. 6519010 - Broadcast transmission system with sampling and correction arrangement for correcting distortion caused by amplifying and signal conditioning components (2003-02-11),

5. 6501805 - Broadcast transmission system with single correction filter for correcting linear and non-linear distortion (2002-12-31),

6. 6473133 - Broadcast transmission system with correction for distortion caused by amplifying and signal conditioning components at a different rate (2002-10-29),

7. 6335767 - Broadcast transmission system with distributed correction (2002-01-01),

8. 6285412 - Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system (2001-09-04),

9. 6281936 - Broadcast transmission system with sampling and correction arrangement for correcting distortion caused by amplifying and signal conditioning components (2001-08-28),

10. 6173429 - Apparatus for providing error correction data in a digital data transfer system (2001-01-09),

11. 6081158 - Adaptive pre-distortion apparatus for linearizing an amplifier output (2000-06-27),

12. 5917373 - Apparatus with reduced A/D dynamic range requirement in a compensating (1999-06-29),

13. 5801595 - Device and method for digital vestigial sideband modulation (1998-09-01),

14. 5751347 - Vestigial sideband test signal generator and method (1998-05-12),

15. 5291428 - Apparatus for reducing spurious frequency components in the output (1994-03-01),

Title: Edwin Ray Twitchell: An Innovator in Radio Frequency Technology

Introduction

Edwin Ray Twitchell, an accomplished inventor based in San Jose, California, has made significant contributions to the field of radio frequency technology. With a remarkable portfolio of 15 patents to his name, Twitchell's innovations have impacted various aspects of telecommunications and signal processing.

Latest Patents

Among his latest patents, Twitchell has developed a "Hybrid polar modulator differential phase Cartesian feedback correction circuit for power amplifier linearization." This invention provides a method for obtaining accurate estimates of phase and amplitude distortions introduced by radio frequency or microwave power amplifiers, even under polar modulation conditions. Additionally, his work on a "Configurable exciter" has further advanced transmission systems. This exciter, strategically located along an information stream path, supplies information signals to an amplifying arrangement and is programmable to operate in multiple I/O formats such as MPEG2, DVIDEO, and AES3, thus enhancing transmission efficiency.

Career Highlights

Twitchell's innovative journey has been highlighted by his tenure at notable companies, including Harris Corporation and Matsushita Electric Industrial Co., Ltd. His expertise in radio frequency systems and modulator technology has positioned him as an influential figure in the industry.

Collaborations

Throughout his career, Twitchell has collaborated with esteemed colleagues such as Robert J. Plonka and Wayne Douglas Duello. These partnerships have fostered an environment of shared knowledge and technological advancement, further amplifying the impact of their collective work.

Conclusion

Edwin Ray Twitchell's contributions to the field of radio frequency technology illustrate his dedication to innovation and problem-solving. With 15 patents reflecting his expertise and creativity, Twitchell continues to inspire future generations of inventors in the realm of telecommunications.

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