Method and apparatus for determining the directional frequency response of an arrangement of transducer elements
US11863280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2019 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Aug 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for determining the directional frequency response of an arrangement of transducer elements are disclosed. In an example, a method includes providing a simulation of locations of the transducer elements, in the spatial domain; providing a beamforming direction and a frequency range; converting the simulation of locations from the spatial domain into corresponding frequency response values in a spatial frequency domain, such that, for each frequency of a plurality of frequencies in the frequency range, a spatial frequency contour is defined, each of the spatial frequency contours intersecting at the origin; determining the frequency response by applying a transformation to the frequency response values for the provided beamforming direction and frequency range and translating the spatial frequency domain into a modified frequency domain; and outputting the frequency response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.