John Dielissen

Title: John Dielissen: Innovator in LDPC Decoding and Electronic Devices

Introduction

John Dielissen is a notable inventor based in Weert, Netherlands. He has made significant contributions to the field of electronic devices and decoding algorithms, holding a total of 5 patents. His work primarily focuses on advanced decoding techniques and electronic components that enhance data processing capabilities.

Latest Patents

One of Dielissen's latest patents is related to Shuffled LDPC decoding. This invention involves an LDPC decoder that iteratively decodes an LDPC code represented by a parity check matrix H. The decoder utilizes a Log-Likelihood Ratio Belief-Propagation algorithm to improve decoding efficiency. The first computation means compute symbol messages from a corresponding symbol value stored in a first memory and from check node messages from a previous iteration. A shuffler changes the sequence of the symbol message based on the position of non-zero elements in a corresponding sub-matrix. The second computation means compute check node messages based on symbol messages received from the barrel shifter, while the third computation means update the representation of symbol values in the first memory. This innovative approach employs the principle of 'staggered' or 'shuffled' LDPC decoding, with one embodiment designed for multi-diagonal circulants.

Another significant patent is for an electronic device that includes a barrel shifter unit. This device performs a rotation of an input and comprises both a first and second barrel shifter. The selection unit within the device selects sets of elements for each barrel shifter, while a plurality of multiplexers manage the input and output of the shifters. This invention enhances the functionality and efficiency of electronic devices in processing data.

Career Highlights

Throughout his career, John Dielissen has worked with prominent companies such as St-Ericsson and NXP B.V. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.

Collaborations

Dielissen has collaborated with various professionals in the field, including his coworker Edwin Rijpkema. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.

Conclusion

John Dielissen is a distinguished inventor whose work in LDPC decoding and electronic devices has made a significant impact in the technology sector. His patents reflect a commitment to innovation and