u-blox’s patent involves a method and apparatus for estimating characteristic differences between wireless signals in different frequency ranges, identifying signals from the same location, and maintaining a database of this information. The claim details the process of estimating these differences and the combined time of arrival for the signals. 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 May 2024 was 35%. Grant share is based on the ratio of number of grants to total number of patents.
Estimating characteristic differences between wireless signals in different frequency ranges
The granted patent (Publication Number: US12015452B2) discloses a method for estimating characteristic differences between two wireless signals. The method involves receiving two wireless signals transmitted in different frequency ranges from the same location, processing them to estimate differences in time of transmission, carrier phase relationship, and amplitude relationship. The method further includes estimating a combined time of arrival for the signals by aligning channel impulse responses and combining them to generate a combined channel impulse response. The patent also covers identifying multipath components in the signals and estimating characteristic differences based on these components.
Additionally, the patent describes methods for identifying if two wireless signals were transmitted from the same location and maintaining a database of characteristic difference information associated with groups of signals. The database stores characteristic differences between signals in each group, including time offset, carrier phase relationship, and amplitude relationship. The patent also includes instructions stored on a computer-readable medium for executing the method and electronic communications devices for estimating characteristic differences between wireless signals. These devices include receivers for the signals and processors for processing and estimating the characteristic differences, as well as aligning channel impulse responses to determine the combined time of arrival for the signals.
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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.
