Peter H N De With

Title: Peter H N De With: Innovator in Picture Signal Processing

Introduction

Peter H N De With is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of picture signal processing, holding a total of 5 patents. His work primarily focuses on encoding and decoding circuits that enhance the efficiency of transmitting television pictures.

Latest Patents

Among his latest patents is an encoding circuit for transform coding of a picture signal and a decoding circuit for decoding said signal. This innovative encoding circuit transforms a picture signal into blocks of coefficients, such as 8x8, which are read motion-adaptively. In scenarios where motion occurs within a sub-picture, the coefficients are read in a specific order to create two interleaved sub-series. The first series begins with a DC component, while the second series starts with the most relevant motion coefficient in one embodiment. This method ensures that coefficients are transmitted in their order of significance, leading to the formation of large clusters of zero-value coefficients. These clusters are then transmitted as a compact run-length code, achieving effective bit rate reduction, especially for moving pictures.

Another significant patent involves a device for transmitting television pictures in the form of transform coefficients and motion vectors. The motion vectors of a sub-picture are converted into a series of difference vectors and a reference vector. This series is then processed by a variable-length encoder, which encodes a run of zero values followed by a non-zero value into a variable-length code word. This encoder may also be utilized for encoding the coefficients.

Career Highlights

Peter H N De With has worked with prominent companies such as 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 picture signal processing.

Collaborations

Throughout his career, Peter has collaborated with notable individuals, including Stephanus M C Borgers and Stephanus J J Nijssen. These collaborations have contributed to the advancement of technology in his field.

Conclusion

Peter H N De With is a distinguished inventor whose work in picture signal processing has led to significant advancements in the efficiency of television picture transmission. His innovative patents and collaborations highlight his impact on the industry.