METHOD OF TRANSMITING DATA AND A DEVICE AND SYSTEM THEREOF

摘要

A method for transmitting a data signal from a sending-end 100 to a receiving-end 200 includes the steps of spreading the data signal into a spread spectrum signal, combining the spread signal with an analogue signal into a mixed signal. The mixed signal can be transmitted or broadcasted to the receiving-end 200. The receiving-end is able to play or use the analogue signal without significant noise from the spread spectrum signal. The spread spectrum signal can be retrieved by inverse-spread-processing the spread spectrum signal to retrieve the data signal. The sending-end can be in a headphone 900 and the receiving-end can be in a mobile phone 910, or the sending-end can be a loudspeaker broadcasting the analogue signal to a mobile phone picking up the analogue signal by the microphone in the mobile phone.

主权项

1. A method of transmitting data between a mobile phone and a headphone plugged into an analogue audio jack of the mobile phone, comprising the steps of:
providing a data signal; spreading the data signal to produce a spread spectrum signal; sending the spread spectrum signal from the mobile phone to the headphone and inverse-spread-processing the spread spectrum signal in the headphone to retrieve the data signal; or sending the spread spectrum signal from the headphone to the mobile phone and inverse-spread-processing the spread spectrum signal in the mobile phone to retrieve the data signal.