Company Filing History:
Years Active: 2013-2015
Title: Innovations of Graham Johnston
Introduction
Graham Johnston is a notable inventor based in Edinburgh, GB. He has made significant contributions to the field of data encoding, holding a total of 3 patents. His work primarily focuses on forward error correction encoding, which is crucial for reliable data transmission.
Latest Patents
Graham Johnston's latest patents include innovative circuits for forward error correction encoding of data blocks. One of his patents discloses approaches for encoding N symbols of a sequence in parallel using an R parity symbol encoding algorithm. This involves adding a first symbol matrix to a first parity matrix over a finite field to produce a first intermediate matrix. The first intermediate matrix is then multiplied by at least a first coefficient matrix and a second coefficient matrix over the finite field to produce a second intermediate matrix. Additionally, a second symbol matrix is multiplied by at least the second coefficient matrix to produce a third intermediate matrix. The second and third intermediate matrices are added to produce a revised parity matrix.
Another patent describes an encoder circuit that includes an input circuit with multiple finite field subtraction circuits. Each circuit is configured to receive a respective symbol from the sequence and subtract it from a respective symbol of an intermediate polynomial to produce a feedback symbol. For each coefficient of a code generation polynomial, a first circuit multiplies each feedback symbol by a respective constant corresponding to the coefficient to produce a first set of intermediate results. These results are summed to produce a second intermediate result, which is stored in a buffer circuit as the intermediate polynomial.
Career Highlights
Graham Johnston is currently employed at Xilinx, Inc., where he continues to innovate in the field of data encoding technologies. His work has been instrumental in advancing the efficiency and reliability of data transmission systems.
Collaborations
Some of his notable coworkers include Robert Edwin Payne and David I Lawrie, who have collaborated with him on various projects.
Conclusion
Graham Johnston's contributions to the field of forward error correction encoding have established him as a prominent inventor in his domain. His innovative patents reflect his commitment to enhancing data transmission technologies.