Martin Fritz

Title: Martin Fritz: Innovator in Signal Processing Technologies

Introduction

Martin Fritz is a notable inventor based in Stuttgart, Germany. He has made significant contributions to the field of signal processing, holding a total of 4 patents. His work primarily focuses on developing advanced circuits and methods for generating modulated signals.

Latest Patents

One of Martin Fritz's latest patents is a PLL circuit and method for generating a modulated carrier signal. This innovative PLL circuit utilizes a digitally controlled oscillator (DCO) to produce a modulated signal. The circuit receives a desired phase change as a modulation signal at each cycle of a non-uniform clock, which is derived from the DCO output and a uniform reference clock. This phase change is crucial as it adjusts the DCO's frequency. Additionally, the circuit incorporates a frequency control word that represents the ratio of the desired carrier frequency to the reference clock frequency. By accumulating the phase change and frequency control word, the circuit can predict the DCO's output phase. A non-uniform clock compensation circuit is also included to calculate a compensation value for the phase change. Furthermore, a phase detector estimates the error between the predicted phase and the time offset between the reference clock and DCO output, generating a control signal for the DCO based on this error.

Another significant patent by Martin Fritz is a single channel receiver and receiving method. This receiver features an input terminal that receives an analog input signal. It includes a mixer that down-mixes the analog input signal using a phase- and/or frequency-corrected oscillator frequency signal. This process shifts the complex-valued information contained in the analog input signal to the real part, resulting in an intermediate real-valued analog signal. An analog-to-digital converter then converts this intermediate analog signal into a digital output signal. The receiver also comprises a demodulator that demodulates the intermediate digital signal, a phase tracking loop that detects zero-crossings in the intermediate digital signal to obtain phase error information, and an oscillator that generates the phase- and/or frequency-corrected oscillator frequency signal by compensating for any phase and/or frequency errors.

Career Highlights

Throughout his career, Martin Fritz has worked with prominent companies such as Sony Corporation and Sony Semiconductor Solutions Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in signal processing.

Collaborations

Martin has collaborated