This inventor holds 1 USPTO granted patent. Top assignee: Nokia Mobile Phones Limited. Active years: 1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1994
Title: Erkki Tiittanen: Microwave Signal Calibration Innovation
Introduction
Erkki Tiittanen is an inventor associated with Oulu, Finland, and Nokia Mobile Phones Limited. His work includes a patent concerning calibration techniques for I/Q channel signals in microwave digital systems.
Latest Patents
Tiittanen is credited with 1 patent, titled “Tuning Techniques for I/Q Channel Signals in Microwave Digital.” The invention describes calibrating a vector modulator without requiring a network analyzer. It measures the power levels of the in-phase (I) and quadrature (Q) signals to identify amplitude imbalance and phase error, then stores corresponding compensation values in read-only memory. These corrections help adjust the relative amplitudes and phases of the modulation signals.
Career Highlights
Tiittanen’s patent addresses a practical calibration challenge in microwave transmitters by using signal power measurements to determine and correct I/Q errors. The disclosed approach integrates amplitude and phase compensation into a vector modulation system.
Collaborations
Tiittanen’s listed coworkers include Kjell I. Ostman and Mikko Veijo Halttunen. His company affiliation is Nokia Mobile Phones Limited.
Conclusion
Erkki Tiittanen’s patent documents a measurement-based method for improving I/Q signal calibration in microwave vector modulators, reflecting his contribution to communications technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile