Abstract: A video and audio streaming transmission system is provided. The video and audio streaming transmission system includes a receiving end module, a first transmitting end module and a second transmitting end module. The first transmitting end module obtains a first audio signal, and sends the first audio signal to the receiving end module. The second transmitting end module obtains a second audio signal, and sends the second audio signal to the receiving end module. The receiving end module returns a processed audio signal to the first computer device according to the first audio signal and the second audio signal, so that the first computer device provides the processed audio signal to a conference module.

Abstract: A wireless briefing device includes a first antenna, a second antenna, and a ground plane. Each of the first antenna and the second antenna couples out a frequency band. A distance between the first antenna and the ground plane is between 0.2 and 0.3 times of a wavelength of the frequency band, and a distance between the second antenna and the ground plane is between 0.2 and 0.3 times of the wavelength of the frequency band.

Abstract: A transmitter device applied to a conference system is disclosed. The conference system further includes a receiver device. The receiver device wirelessly receives an image signal transmitted by the transmitter device, and a display coupled to the receiver device displays the image signal. The transmitter device includes a memory storing an identity information corresponding to an authority of the transmitter device. When the transmitter device is coupled to an information processing device, the transmitter device transmits the identity information to the information processing device. An application driver of the information processing device determines the authority of the transmitter device according to the identity information.

Abstract: A video conference system is disclosed. The video conference system includes at least one transmitter device and a receiver device. The transmitter device is connected to an information processing device. The receiver device and the transmitter device are wirelessly connected. The receiver device wirelessly receives a video data related to the information processing device transmitted by the transmitter device. When the receiver device triggers a standby screen and the receiver device is connected to a video conference screen management device, the receiver device does not output the standby screen to the video conference screen management device.

Abstract: A transmitter device applied to a conference system is disclosed. The conference system further includes a receiver device. The receiver device wirelessly receives an image signal transmitted by the transmitter device, and a display coupled to the receiver device displays the image signal. The transmitter device includes a memory storing an identity information corresponding to an authority of the transmitter device. When the transmitter device is coupled to an information processing device, the transmitter device transmits the identity information to the information processing device. An application driver of the information processing device determines the authority of the transmitter device according to the identity information.