Audio system and related method integrated with ultrasound communication functionality
US8160276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B11/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Audio system and related method integrated with ultrasound communication functionality are provided. A communication transmitting device of proposed invention modulates a communication signal of communication functionality to a high-frequency sound and transmits the high-frequency sound by an ordinary audio transmitter. A communication receiving device of proposed invention receives the high-frequency sound with an ordinary audio receiver and demodulates it to retrieve the communication signal, and then the communication device can use the communication signal. The proposed audio sound transmitter/receiver can be implemented using low-cost audio speaker/microphone, such that a cost for implementing communication functionality can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.