Method for controlling a computing device over existing broadcast media acoustic channels
US9224292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2013 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Apr 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/037
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for broadcasting a control message across an existing broadcast transport medium such as TV, Radio, Webcasts, Smart Phones/Tablets, Audio Buttons/Toys and PA/audio systems via a common acoustic channel with normal traditional broadcasts over those mediums to control computing devices, especially smart mobile devices such as smart phones or tablets. The present invention also involves a method for encoding the control message onto an acoustic wave composed of active sinusoidal frequency components selected out of monitored possible frequencies according to the concept of mathematical combinations. This encoding method is aimed at using a minimum amount of transmitted energy to get a maximum amount of data with as little reflective noise as possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.