This inventor holds 4 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Nokia Corporation, Broadcom Corporation. Active years: 2011-2014.
Company Filing History:
Years Active: 2011-2014
Title: Jussi Ryynanen: Innovator in Digital Control Technologies
Introduction
Jussi Ryynanen is a notable inventor based in Vantaa, Finland. He has made significant contributions to the field of digital control technologies, holding a total of 4 patents. His work primarily focuses on enhancing the functionality and efficiency of electronic devices through innovative designs.
Latest Patents
One of his latest patents is a digitally controlled delay device. This device includes at least one delay generating gate device, whose propagation delay is controlled by limiting operating current through a tail transistor that is regulated by its gate voltage. Additionally, it features a gate control voltage control means for managing the current limiting transistor gate voltage, along with a bank of digitally controlled MOSFET transistors in parallel configuration. The digital control is designed to switch the transistors to off and diode mode connection, with current feeding means to supply current through the bank of MOSFET transistors. The voltage across the bank of parallel transistors is utilized for gate source control voltage of the tail transistors.
Another significant patent is an adjustable circuit architecture. This amplifier circuitry has adjustable parameters and includes a feedback loop that converts a signal to another frequency, filters the signal at that frequency, and restores the filtered signal back to its original frequency for input into the amplifier. The feedback loop implements a band-stop filter with an adjustable stopband, allowing the amplifier circuitry to exhibit an adjustable band-pass response. The passband of the amplifier circuitry can be altered from one operating frequency to another by changing the frequency conversion parameters of the feedback loop.
Career Highlights
Jussi Ryynanen has worked with prominent companies in the technology sector, including Nokia Corporation and Broadcom Corporation. His experience in these organizations has contributed to his expertise in developing advanced electronic solutions.
Collaborations
Throughout his career, Jussi has collaborated with talented individuals such as Liangge Xu and Kari Stadius. These partnerships have fostered innovation and the exchange of ideas in the field of digital control technologies.
Conclusion
Jussi Ryynanen's contributions to the field of digital control technologies are noteworthy. His innovative patents and collaborations with leading companies and professionals highlight his impact on the industry. His work continues to influence advancements in electronic device functionality and efficiency.

