Digital Transmitter and Digital Receiver for Wireless Headphones

摘要

The transmission apparatus of the present invention samples the first analog signal and the second analog signal output from the audio signal source to generate first digital data and second digital data and synthesizes them by stereo synthesis to generate one serial digital data, The serial digital data displayed in the stereo format from the source is directly modulated by FSK or the serial digital data synthesized by the transmitter is FSK modulated and transmitted through the wireless transmitter. The signal is subjected to FSK demodulation, serial digital data is extracted, the digital data is separated into first digital data and second digital data while continuing phase tracking, and then converted into a first analog signal and a second analog signal, So that the S / N ratio and the signal It is effective in that high quality can be obtained in terms of separation.