Abstract: An antenna module includes an antenna box and a first connection wire. The antenna box can include a first antenna, a second antenna, a first connection terminal, a second connection terminal and a housing. The first and second antennas are located in the housing and the housing has a first opening collectively exposing a portion of the first connection terminal and a portion of the second connection terminal. Each of the first and second antennas is adapted to receive or transmit wireless signals according to one of a plurality of wireless communication standards and the first and second antennas are electrically connected to the first and second connection terminals, respectively. The wireless communication standards can be different from each other.

Abstract: A method and a system for audiovisual signal synchronization are provided. The method is adapted to an audiovisual system. When the audiovisual system is in operation, a circuit for distributed audiovisual synchronization-calibration is provided for acquiring delay information reported by various audiovisual circuit modules that are in charge of processing audiovisual signals. Accordingly, the audiovisual synchronization processing system that is disposed in the audiovisual system to synchronize the audiovisual signals can obtain a time difference between audio signals and video signals. When processing audio and video data, the audiovisual system can utilize the time difference to synchronize the audio signals and the video signals, and then output an audiovisual content.