Company Filing History:
1 out of 14,087 
1 out of 21,384 
Years Active: 1996-2002
Title: Christinus Johannes Van Valburg: Innovator in Waveform Generation and Adaptive Filtering
Introduction
Christinus Johannes Van Valburg is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the fields of waveform generation and adaptive filtering, holding a total of 2 patents. His innovative work has implications in various technological applications, particularly in signal processing.
Latest Patents
One of his latest patents is focused on generating a non-linear waveform. In this invention, a repetitive non-linear waveform is generated by varying the number supplied to a pulse reduction circuit during the repetition period. Consequently, the pulse reduction circuit supplies a number of desired output pulses, which number varies in time corresponding to the varying number. For example, when a lower number is inputted to the pulse reduction circuit during a sub-period of the repetition period, a corresponding lower number of output pulses will be generated. This results in a lower number of increment values being summed or integrated during this sub-period, leading to a waveform that changes less steeply.
Another significant patent by Van Valburg is the adaptive discrete-time transversal filter. This invention pertains to adaptive discrete-time filters, which are used in applications such as echo cancellers that respond to input signals, particularly speech signals. The filter can be modeled with an autoregressive process of the order of p. It includes a control circuit that adjusts the coefficients for a discrete-time transversal filter according to an algorithm that requires the same amount of computation as the Least Mean Square (LMS) algorithm. However, it leads to the same or better convergence results for this type of signal than the Orthogonal Projection (OP) algorithm.
Career Highlights
Throughout his career, Van Valburg has worked with prominent companies, including U.S. Philips Corporation and Koninklijke Philips Corporation N.V. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of electronics and signal processing.
Collaborations
He has collaborated with notable coworkers such as Petrus C Sommen and Hendrik Ten Pierick. Their joint efforts have contributed to advancements in their respective fields and have fostered a collaborative environment for innovation.
Conclusion
Christinus Johannes Van Valburg is a distinguished inventor whose work in waveform generation and adaptive filtering has made a significant impact in technology. His patents reflect his innovative spirit and dedication to advancing the field of signal processing