Audio accessory communication with active noise cancellation
US9674598B2 · kind B2 · utility
1Cited by
17References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2015 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This document discusses, among other things, an advanced slave circuit and method configured to transfer power from a master device to a battery through an advanced slave circuit in a first mode using a load switch in a first state, to isolate the battery from the master device using the load switch in a second state, and to selectively couple a microphone to the master device using the advanced slave circuit in a second mode using a microphone switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.