Method and system for power delivery to a headset
US9100743B2 · kind B2 · utility
1Cited by
36References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Jan 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power delivery method and system for powering a headset. A power signal is combined with an audio signal to form a composite signal that is communicated over a shared channel to the headset. The power signal is generated by modulating a carrier signal with a modulation signal. The modulation signal is derived from the amplitude of the audio signal so that the peak levels of the composite signal do not exceed the maximum allowable output of an audio I/O circuit driving the headset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.