Systems and methods for acoustic communication in a mobile device
US10153801B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2015 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Jul 3, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication device and method including a microphone, a first filter coupled to the microphone adapted to pass signals in an audio band only, a second filter coupled to the microphone adapted to pass signals only in an upper region of the audio band, an optional amplifier or two, an analog to digital converter (ADC) unit or two, an optional a switching unit connected between an input of the ADC unit and an output of each of the first and second filters and configured to selecting between the first and second filters, and a controller configured to control the switching unit and/or to select the second filter for acoustic communication, where the acoustic communication is adapted to the upper region of the audio band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.