The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2026
Filed:
Apr. 17, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
José Araújo, Stockholm, SE;
Volodya Grancharov, Solna, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A mobile communications device for performing localization and mapping comprising at least one visual sensor for capturing visual sensor data of a local environment, and operative to derive key-point descriptors from the visual sensor data which represent visual features of the local environment, derive concealed representations of the derived key-point descriptors, by applying a current permutation to the derived key-point descriptors, determine a pose of the mobile communications device relative to a point-cloud map representing the local environment, map the derived key-point descriptors onto the point-cloud map, thereby associating each derived key-point descriptor with a position in the point-cloud map, and transmit the concealed representations of the derived key-point descriptors, together with their associated positions in the point-cloud map, to a map server. The current permutation is a shared secret, or is derivable from a shared secret, which shared secret is available to a group of mobile communications devices.