Lawrence E Christensen

Title: The Innovations of Lawrence E Christensen

Introduction

Lawrence E Christensen is a notable inventor based in La Jolla, CA (US). He has made significant contributions to the field of frequency generation through his innovative patent. His work exemplifies the intersection of digital technology and analog signal processing.

Latest Patents

One of Christensen's key patents is titled "Frequency generator with digitally controlled phase modulation." This invention discloses a frequency generator that allows for precise and repeatable control of phase modulation of a carrier frequency through a digital input. The system utilizes a digital-to-analog converter (DAC) to transform digital inputs from a computer into an analog voltage output. An analog ramp signal generator is integrated into the design, enabling the output of both the ramp signal generator and the DAC to serve as inputs to a voltage comparator network. This network switches state whenever the ramp signal exceeds the DAC output, triggering a one-shot multivibrator that produces a square wave. This square wave can be advanced or retarded in phase based on the digital input, ultimately generating a digitally phase-controlled sine wave output.

Career Highlights

Christensen's career is marked by his role as an inventor for the USA, represented by the Secretary of the Navy. His work has had a lasting impact on the field of frequency generation and modulation.

Collaborations

Throughout his career, Christensen has collaborated with notable individuals such as James C Hanselman and Donald J Adrian. These collaborations have contributed to the advancement of technology in his field.

Conclusion

Lawrence E Christensen's innovative work in frequency generation showcases his expertise and dedication to advancing technology. His contributions continue to influence the field and inspire future innovations.