Alan Hedge

Title: Alan Hedge - Innovator in Frequency Modulation Technology

Introduction

Alan Hedge is a notable inventor based in Chapel Hill, NC (US). He has made significant contributions to the field of frequency modulation, particularly through his innovative patent related to phase-locked loops. His work has implications for various applications in electronics and communication systems.

Latest Patents

Alan Hedge holds a patent for a technology titled "Frequency modulation in phase-locked loops." This patent describes a phase-locked loop (PLL) frequency synthesizer that incorporates both an analog, out-of-band component path and a digital, in-band component path. The invention allows for frequency modulation (FM) of the synthesized output signal. The in-band FM component is octave scaled by an analog scaling means and is coupled to an analog-to-digital converter. This setup provides a digital number that is added to the PLL divide number, enabling changes in the PLL frequency in response to the in-band FM signal. Additionally, the out-of-band FM component is scaled and summed with the PLL error signal to vary the PLL frequency. The equalization of scaling in both paths ensures a flat frequency response, while the in-band component is optimized to maintain a high signal-to-noise ratio.

Career Highlights

Alan Hedge is currently associated with Hewlett-Packard Company, where he continues to apply his expertise in frequency modulation technologies. His work has been instrumental in advancing the capabilities of PLL synthesizers, which are critical in various electronic devices.

Collaborations

Some of his notable coworkers include Raymond L Fried and Ben Flugstad, who have collaborated with him on various projects within the field.

Conclusion

Alan Hedge's contributions to frequency modulation technology through his patent demonstrate his innovative spirit and technical expertise. His work continues to influence advancements in electronic communication systems.