Sound-based near field communication system and method thereof

A communication system and sound signal technology, applied in near-field transmission systems, transmission systems, digital transmission systems, etc., can solve the problem of less data, no error detection, error correction and anti-interference ability, sound communication does not have application feasibility and application Safety and other issues, to achieve the effect of low cost, simple operation and safe transmission

Active Publication Date: 2013-10-16
东营市远信电器与技术有限责任公司
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, there are documents and patents mentioning the use of DTMF coding technology for acoustic wave or ultrasonic communication between electronic equipment and mobile phones; it is found through experiments that DTMF has strong error detection and error correction and anti-interference capabilities in radio channels, but in The usual human acoustic environment does not have very good error detection, error correction and anti-interference capabilities; more importantly, the data transmitted at one time is very small, usually below tens of bytes, and it

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sound-based near field communication system and method thereof
  • Sound-based near field communication system and method thereof
  • Sound-based near field communication system and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0040] The receiving end uses a smart phone and is fixed at the access control point or authentication check point, responsible for receiving the sound signal from the sending end. The sound signal is a piece of code that encodes the unique identity information of an individual (such as a member, etc.) and the authentication time as a hash summary. The completed sound, as long as it is broadcast during authentication, the access control and other control systems record the sound and then decode and check it to carry out authentication and identification.

[0041]

[0042] 2 Small-scale transmission and sharing of Wifi hotspots and passwords:

[0043] The principle is to encode information such as the wifi hotspot name, encryption method, encrypted password, etc. into sound and broadcast it. After recording and decoding, the customer's mobile phone can directly use this hotspot to automatically connect to the wifi hotspot. For example, the owner of a coffee shop can easily share

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of communication and mainly relates to an electronic device and near field communication realizing data transmission between smart phones through sound. The invention provides a sound-based near field communication system and a method thereof. The main principle is that a prior loudspeaker and a prior sound pick-up of a smart phone or device are utilized fully and data communication of data information s realized through sound in a short distance. The main process includes steps of encrypting, signing or encrypting as well as signing data on a transmitting end; performing RS or BCH error correction of coding; transmitting sound through the loudspeaker after digital modulation; performing digital demodulation and then performing RS or BCH error detection of decoding after the sound is received by a receiving end ; decrypting, verifying signatures or decrypting as well as verifying the signatures; and data transmitted from the transmitting end is received. The main characteristic of the invention is that RS or BCH correcting codes are adopted for guaranteeing reliability of integral data transmission and a cryptographic technique is utilized for guaranteeing data safety.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Owner 东营市远信电器与技术有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap