The European Space Agency has been granted a patent for a system and method to resolve time ambiguity in a receiver using radio signals. The invention involves code symbol synchronization and code phase offset estimation to achieve accurate time resolution within a specified period. GlobalData’s report on European Space Agency gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on European Space Agency, Beamforming networks was a key innovation area identified from patents. European Space Agency's grant share as of January 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.

Time ambiguity resolution in radio signal receivers

Source: United States Patent and Trademark Office (USPTO). Credit: European Space Agency SA

A recently granted patent (Publication Number: US11855682B2) discloses a radio signal device designed to transmit and receive radio signals with specific signal components and overlay codes. The patent details the configuration of the radio signal device, including the modulation of overlay codes on primary codes, duration of overlay codes, and reference code phase offsets. The device is capable of resolving time ambiguities within a defined period based on code phase offsets and synchronization of signal components. The patent also covers methods for resolving time ambiguities in receivers based on received radio signals, involving code symbol synchronization, code phase offset estimation, and time-dependent code phase offsets for accurate time ambiguity resolution.

Furthermore, the patent describes the utilization of variable transition phasing of sub-symbols within code symbols to extend time ambiguity resolution for deriving Time of Week, Time of Day, or any Time of Interval. The methods outlined in the patent emphasize the acquisition, synchronization, and exploitation of code transitions for time diversity and spatial diversity in radio signal reception. The patent's innovative approach to resolving time ambiguities in radio signal devices and receivers showcases advancements in signal processing techniques for improved accuracy and efficiency in time synchronization.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.