Infrared LED wireless audio sending device, receiving device and transmitting system

The invention relates to the technical field of electronics, and discloses an infrared LED wireless audio sending device, a receiving device and a transmitting system. The sending device, the receiving device and the transmitting system have a hidden feature, and convenience can be brought to interc...

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Bibliographic Details
Main Authors JI XINMING, DOU HONGYAN
Format Patent
LanguageChinese
English
Published 02.07.2014
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:The invention relates to the technical field of electronics, and discloses an infrared LED wireless audio sending device, a receiving device and a transmitting system. The sending device, the receiving device and the transmitting system have a hidden feature, and convenience can be brought to interception work. The infrared LED wireless audio sending device comprises a voice signal collecting device, an analog-digital converter, a coding unit, a drive circuit and an infrared LED lamp. The voice signal collecting device collects audio signals, and outputs the collected audio signals to the analog-digital converter. The analog-digital converter carries out analog-digital conversion on the received audio signals, and the converted digital signals are coded through the coding unit, and then are output to the drive circuit. The coded signals are modulated into control signals used for controlling the flashing and extinguishing frequency of the infrared LED lamp through the drive circuit, and the infrared LED lamp
Bibliography:Application Number: CN20141117095