u-blox has been granted a patent for a method and apparatus that estimate characteristic differences between wireless signals transmitted from the same location across different frequency ranges. The technology includes estimating combined arrival times and maintaining a database of characteristic differences. GlobalData’s report on u-blox 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 u-blox, Perimeter security was a key innovation area identified from patents. u-blox's grant share as of July 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Estimating differences between wireless signals from the same location
The granted patent US12015452B2 outlines a method for estimating characteristic differences between two wireless signals transmitted from the same location but within different frequency ranges. The method involves receiving both signals, processing them to identify differences such as time offsets, carrier phase relationships, and amplitude relationships. A key aspect of the method is the estimation of a combined time of arrival for the signals, which is achieved by aligning their respective channel impulse responses based on the identified differences. This process includes generating aligned channel impulse responses, combining them, and subsequently estimating the combined time of arrival from the resulting data.
Additionally, the patent describes methods for identifying whether two wireless signals were transmitted from the same location by comparing characteristic differences obtained from signals received at different locations. It also details the maintenance of a database that stores characteristic difference information associated with groups of signals, allowing for efficient retrieval and analysis. The methods can be applied to various transmission modes and include the potential for predicting changes in characteristic differences over time. The patent further encompasses electronic communications devices designed to implement these methods, featuring receivers and processors that facilitate the estimation and analysis of wireless signal characteristics.
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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.
