This inventor holds 3 USPTO granted patents. Top assignees: Nokia Corporation, Nokia Networks Oy. Active years: 2002-2008.
Company Filing History:
Years Active: 2002-2008
Title: Jouko Vankka: Innovator in Signal Processing and Modulation Technologies
Introduction
Jouko Vankka is a notable inventor based in Helsinki, Finland. He has made significant contributions to the fields of signal processing and digital modulation. With a total of 3 patents to his name, Vankka's work has had a considerable impact on telecommunications technology.
Latest Patents
Vankka's latest patents include a method of limiting signal and a novel QAM modulator. The method of limiting signal involves setting a threshold value, dividing the combined signal into blocks, and comparing the values of each block with the set threshold value. If the threshold is exceeded, the block is decorrelated along with a predetermined number of channelization codes. This process results in normalized first weighting coefficients, which are then used to determine second weighting coefficients for downlink transmissions. The examined block is re-formed using combinations of the channelization codes and the determined weighting coefficients.
The QAM modulator he invented replaces traditional sine/cosine memories and multipliers with a CORDIC algorithm. This innovative design consists of multiple digital rotation stages that sequentially process input vectors to produce orthogonal I and Q components of a digital intermediate frequency signal. The modulator also features an angle computation block that generates input words based on a frequency control word, enhancing its efficiency and performance.
Career Highlights
Throughout his career, Jouko Vankka has worked with prominent companies such as Nokia Corporation and Nokia Networks Oy. His experience in these organizations has allowed him to develop and refine his innovative ideas in signal processing and modulation technologies.
Collaborations
Vankka has collaborated with notable professionals in his field, including Mauri Honkanen and Timo Viero. These partnerships have contributed to the advancement of his inventions and the overall progress in telecommunications.
Conclusion
Jouko Vankka is a distinguished inventor whose work in signal processing and digital modulation continues to influence the telecommunications industry. His innovative patents and collaborations reflect his commitment to advancing technology in meaningful ways.