Video conference system

A video conference system, comprising:

• a transmitter device, comprising:
• a transmitter control unit, coupled to a video output port of an information system and configured to receive a first video data from the video output port;
• a first network interface, configured to transmit the first video data;
• and
• a first wireless transmission module, configured to transmit the first video data;
• a first receiver device, comprising:
• a second wireless transmission module, configured to receive the first video data from the first wireless transmission module;
• and
• a first receiver video circuit, coupled to a first display device;
• and
• a second receiver device, comprising:
• a second network interface, configured to receive the first video data from the first network interface;
• a second receiver input interface, configured to receive a third video data from a camera coupled to the second receiver input interface;
• and
• a second receiver video circuit, coupled to a second display device;
• wherein the second receiver video circuit combines the first video data and the third video data as a second combined video data, the second receiver video circuit transmits the second combined video data to the second display device, the second receiver video circuit outputs the second combined video data to the transmitter device through the first network interface and the second network interface, and the transmitter device outputs the second combined video data to the first receiver device through the first wireless transmission module and the second wireless transmission module.