Company Filing History:
5 out of 9,638 
3 out of 4,674 
2 out of 115 Years Active: 1990-2009
Title: Herbert L. Ko: Innovator in Signal Processing
Introduction
Herbert L. Ko is a notable inventor based in Mountain View, CA (US). He has made significant contributions to the field of signal processing, holding a total of 10 patents. His work has had a profound impact on various technologies, particularly in the areas of phase-locked loops and modulation techniques.
Latest Patents
Herbert L. Ko's latest patents include a "Method and apparatus for generating a phase-locked output signal." This invention involves generating an intermediate signal that is phase locked to an input signal by frequency dividing the intermediate signal using a temporally-varying divide ratio sequence. The process includes generating a first feedback signal and phase comparing it with the input signal to produce an output signal that is also phase locked. Another significant patent is the "Method and apparatus for variable sigma-delta modulation." This invention partitions a digital input signal into less-significant and more-significant bit signals, performing lower-order modulation on the less-significant bit signal to create an intermediate output signal. This signal is then combined with the more-significant bit signal to form an intermediate input signal, which undergoes higher-order modulation to generate a digital output signal.
Career Highlights
Throughout his career, Herbert L. Ko has worked with prominent companies such as Hewlett-Packard Company and Agilent Technologies, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Herbert has collaborated with notable individuals in his field, including Gregory Steven Lee and John Dwight Larson, III. These collaborations have further enriched his work and expanded the impact of his inventions.
Conclusion
Herbert L. Ko's contributions to signal processing through his patents and collaborations highlight his role as a significant innovator in the technology sector. His work continues to influence advancements in various applications, showcasing the importance of innovation in driving progress.