Transmitter, receiver, transmitting method, receiving method, communication system, communication method, program, and computer-readable storage medium
US9213969B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2012 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Oct 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To provide a technique for making it possible to perform proximity communication using an apparatus not including a special proximity communication device. Transmission data is acquired. Output sound data of a PCM format obtained by encoding the transmission data is output, the output sound data indicating sound in an inaudible frequency band. A DA converter is caused to convert the output sound data, whereby a speaker is caused to output sound corresponding to the output sound data. The output sound data indicates sound having a plurality of sections with sound and soundless sections between the adjacent sections with sound according to the transmission data and that the output sound data indicates a sine curve in which the amplitude of the sections with sound increases from a start time and decreases after reaching a maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.