Patent · US Active

Data transmission between devices over audible sound

US9941977B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Google LLC · US

Inventors

Pascal Tom Getreuer · San Francisco, US
Murphy Stein · San Jose, US
Ryan M. Rifkin · Oakland, US
Richard F. Lyon · Los Altos, US
Ian Muldoon · Redwood City, US

Key dates

Filing date	Jan 2, 2015
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Mar 18, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04B11/00
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Implementations generally relate to providing data transmission between devices over audible sound. In some implementations, a method includes mapping each symbol of data to a frequency combination, where each frequency combination includes one or more frequencies. The method further includes generating a sine wave for each frequency. The method further includes adding sine waves for a given symbol to obtain a resulting sine wave. The method further includes applying a window function to the resulting sine wave to obtain a data signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.