Hans Hagberg

Title: Innovations of Hans Hagberg

Introduction

Hans Hagberg is a notable inventor based in Malmö, Sweden. He has made significant contributions to the field of electronics, particularly in the area of signal processing. With a total of seven patents to his name, Hagberg has demonstrated a commitment to advancing technology through innovative solutions.

Latest Patents

Hagberg's latest patents include the "XO-buffer robust to interference." This invention discloses methods and circuit configurations for reference frequency signal distribution circuitry that suppress unwanted spurious components introduced by RF signal leakage. The methods and circuitry may involve relocating components of a buffer along a reference frequency signal path, thereby suppressing conductive and inductive components associated with RF leakage paths entering the circuitry. Additionally, a filter may be used after the buffer to suppress spurious components resulting from subsampling of unwanted tones in a phase frequency detector or intermodulation between the reference signal and interference tones in the signal path of the buffer.

Another significant patent is the "Linear dead-band-free digital phase detection." This invention describes a phase-locked loop that includes a phase detector, a loop filter, a voltage-controlled oscillator, and a frequency divider. These components are arranged such that the phase detector generates a phase detector output signal based on the phase difference between the reference clock signal and the feedback signal. The loop filter generates a frequency control signal from the phase detector output signal, while the voltage-controlled oscillator produces a phase-locked loop output signal controlled by the frequency control signal. The frequency divider generates the feedback signal from the phase-locked loop output signal.

Career Highlights

Hagberg is currently employed at Telefonaktiebolaget LM Ericsson (publ), a leading telecommunications company. His work at Ericsson has allowed him to apply his innovative ideas in a practical setting, contributing to the development of advanced communication technologies.

Collaborations

Throughout his career, Hans Hagberg has collaborated with several talented individuals, including Magnus Nilsson and Sven Erik Mattisson. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hans Hagberg's contributions to the field of electronics through his patents and work at Ericsson highlight his role as a significant innovator. His inventions continue to influence the industry and pave the way for future advancements in technology.