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:
Jul. 01, 2025
Filed:
Nov. 20, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Tomas Jansson Toftgård, Uppsala, SE;
Rory Gamble, Uppsala, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
A method () for producing an estimated head-related (HR) filter, formula (I), that consists of a set of S HR filter sections formula (II) for s=1 to S. The method includes obtaining (s) an alpha matrix (e.g., an N×K matrix), wherein the alpha matrix consists of S sections, where each one of the sections of the alpha matrix corresponds to a different one of the S HR filter sections (e.g., the first section of the alpha matrix corresponds to formula (III), the second section of the alpha matrix corresponds to formula (IV), etc.), each section of the alpha matrix consists of N sub-vectors (N>1, e.g., N=8), and each sub-vector comprises a number of scalar values. The method further includes separately computing (s) each one of the S HR filter sections, wherein, for at least a certain one of the S HR filter sections, formula (II), the step of computing formula (II) comprises using not more than a predetermined number, q, of the sub-vectors within the section of the alpha matrix corresponding to formula (II) to compute formula (II), where qis less than N.