Data communication method based on inaudible sound at near field

Bang, Green; Chung, MyoungBeom; Ko, Ilju

doi:10.1109/icact.2016.7423501

Cited by 1 publication

(2 citation statements)

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“…Other works also share our motivation in terms of data transmission using inaudible sound. Jang et al [5] and Bang et al [2] focus on sending only one message during all transmission, whereas Lakhwani et al [8] and Tsugawa et al [9] focus on sending a sequence of messages. We discuss each of these works next.…”

Section: Related Workmentioning

confidence: 99%

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Towards Data Transmission Through Inaudible Sound in Ginga-NCL

Nunes¹,

Guedes²,

Lima³

et al. 2018

Anais Estendidos Do XXIV Simpósio Brasileiro De Sistemas Multimídia E Web

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In this paper, we report our efforts to add support for data transmission through inaudible sound to the Ginga-NCL Digital TV middleware. We present an algorithm for encoding a bitstream in an inaudible audio signal, and to do so reliably on consumer-grade hardware. We also discuss two attempts to implement this algorithm in NCL, the language in which Ginga-NCL applications are written. The first attempt was to transmit prerecorded inaudible audio signals in a Ginga-NCL-compatible set-top-box. And the second attempt was to use NCLua to generate at runtime the inaudible audio signal. For the second attempt we extended NCL with a novel media object type, called SigGen, which can be used to generate arbitrary audio signals. In the paper, we describe in detail the implementation of SigGen and the result of these attempts.

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Section: Related Workmentioning

confidence: 99%

“…Bang et al [2], similarly to Jang et al, use 40 frequencies between 18050Hz and 21950Hz with a guard band of 100Hz. They also use 8 bits for CRC and transmit each piece of data for 500ms, achieving bit-rate of 64bps.…”

Section: Related Workmentioning

confidence: 99%