US Patent 7577261 Wireless audio system using wireless local area network

A wireless audio system includes a first device and a second device. The first device includes a first logic and a first WLAN unit coupled to the first logic. The first logic performs audio processing to generate audio data. The first WLAN unit transmits the audio data through a radio frequency channel. The second device includes a second WLAN unit and an audio reproducing unit coupled to the second WLAN unit. The second WLAN unit receives the audio data from the radio frequency channel. The audio reproducing unit generates sound according to the audio data.