Henry H Parrish

Title: The Innovations of Henry H Parrish

Introduction

Henry H Parrish is a notable inventor based in Miami Springs, Florida. He holds a total of six patents, showcasing his contributions to the field of technology and data transmission. His work has significantly impacted the way binary data is encoded and transmitted.

Latest Patents

Among his latest patents is the "Differential encoder and decoder for transmitting binary data." This invention enables binary data to be differentially encoded into symbols for transmission. The data is applied in n-bit data-words to produce symbols that, when displayed in a phasor diagram, are organized into three groups within three 120-degree phase sectors. The encoding allows for the rotation of the sector in which a symbol is produced, depending on the data-word being transmitted. Another significant patent is the "Fast learn digital adaptive equalizer." This automatic adaptive equalizer operates on a test pattern that includes various periods and employs a transversal filter controlled by a microprocessor. The equalizer rapidly calculates optimum initial settings for tap constants, achieving initial equalization in approximately 30 milliseconds at a data rate of 9600 bits per second.

Career Highlights

Henry H Parrish has worked with several companies throughout his career, including Racal-Milgo Limited and Racal Data Communications Inc. His experience in these organizations has contributed to his expertise in data transmission technologies.

Collaborations

Throughout his career, Parrish has collaborated with notable individuals such as Ran F Chiu and Philip F Kromer, III. These collaborations have likely enriched his work and led to further innovations in his field.

Conclusion

Henry H Parrish's contributions to technology through his patents and career experiences highlight his role as a significant inventor in the field of data transmission. His innovative solutions continue to influence the industry today.