This inventor holds 4 USPTO granted patents. Top assignee: Rockwell International Corporation. Active years: 1976-1986.
Location History:
- Garland, TX (US) (1976)
- Wylie, TX (US) (1986)
Company Filing History:
Years Active: 1976-1986
Title: Manley J Head: Innovator in Quadrature Demodulation Technology
Introduction
Manley J Head is a notable inventor based in Wylie, Texas, recognized for his contributions to the field of quadrature demodulation technology. With a total of 4 patents to his name, he has made significant advancements that enhance the accuracy and efficiency of signal processing systems.
Latest Patents
Among his latest patents is the "Distortion analyzer for quadrature demodulated data." This invention provides a method and apparatus for displaying measures of distortion present at the outputs of a quadrature demodulator. The system acquires n parallel bits from both the in-phase and quadrature channels, with m bits representing the demodulator data output and (n-m) bits indicating error bits. These n bits are converted into a signal suitable for a plot display device, which is then applied to orthogonal axes. Additionally, the absolute value of the (n-m) error bits is derived, filtered, and displayed for each channel.
Another significant patent is the "QAM Demodulator automatic quadrature loop using n-m LSB's." This invention describes a quadrature amplitude modulation (QAM) demodulator system that includes in-phase and quadrature channel detectors. These detectors receive local oscillator signals that must maintain a precise phase quadrature relationship. The system utilizes analog-to-digital converters with n output bits, where n exceeds m, the number of bits required for data output. The n-m less significant bits in one channel are employed to derive a signal that indicates any deviation from the true quadrature relationship, allowing for adjustments to ensure accurate demodulation.
Career Highlights
Manley J Head has made a significant impact in his field while working at Rockwell International Corporation. His innovative work has contributed to advancements in communication technologies and signal processing.
Collaborations
Throughout his career, Manley has collaborated with esteemed colleagues, including William C Smith and Frank E Reisch. Their combined expertise has fostered an environment of innovation and creativity.
Conclusion
Manley J Head's contributions to quadrature demodulation technology exemplify the spirit of innovation. His patents reflect a deep understanding of signal processing, and his work continues to influence the industry.