Abstract: A wireless headphone system, a wireless headphone, and a base. The wireless headphone system includes the wireless headphone and the base. The base includes a base RXD wire, a base TXD wire, a base connection wire, and a base triode; and the wireless headphone includes a wireless headphone RXD wire, a wireless headphone TXD wire, a wireless headphone connection wire, and a wireless headphone transistor. The base RXD wire and the base TXD wire are connected together through the base transistor and led out through the base connection wire. The wireless headphone RXD wire and the wireless headphone TXD wire are connected together through the wireless headphone transistor and led out through the wireless headphone connection wire. When the headphone is charged on the base, two-way communication between the headphone and the base can still be implemented while maintaining the existing three-wire design.

Abstract: The present disclosure discloses an information interaction method, an information interaction system, and an application thereof, and belongs to the field of electronic whiteboards. In view of the problems in the prior art that an electronic whiteboard in a conference system has a large amount of data to be transmitted, requires a large interaction bandwidth, and has high network requirements, the present disclosure provides an information interaction method: When an image is annotated on the local device, the host serializes the annotation on the local device. The remote device combines the serialized data and corresponding coordinates and pressure sensing values, to calculate and draw an image for display from the data by using a GPU. The interaction method is applied to the electronic whiteboard in the conference system, thereby realizing multi-party real-time interactive whiteboard collaboration, which is supported in both local conferences and teleconferences.

Abstract: Disclosed herein is a network encryption method for realizing encryption of a local area network at the bottom layer driver of a network card of an embedded device. By using such method, an encryption protocol is performed on the network card driver, thereby achieving encryption and decryption of all network data in the network card driver within the local area network, and achieving encryption of all data above network linking layer, so as to achieve unified encryption of all data in the local area network, resulting in enhanced safety of transmission of network data. Moreover, since encryption of the network data is performed in the network driver, developers do not need to focus on encryption situation.

Abstract: The present disclosure discloses an Ethernet-based cascading conference phone device, which includes a master conference phone and a slave conference phone. The master conference phone receives at least one network data packet through an Ethernet, obtains a real-time stream signal according to the at least one network data packet, plays the real-time stream signal after a delay, sends the real-time stream signal to the slave conference phone, periodically sends at least one synchronized broadcast packet to the slave conference phone.

Abstract: Disclosed herein is a method for RNN-based noise reduction in a real-time conference, comprising: performing frame-and-window for a speech signal to obtain a logarithmic spectrum of the speech signal, and placing the logarithmic spectrum into the RNN model to determine a noise reduction suppression coefficient, and then obtaining the denoised speech signal by applying the noise reduction suppression coefficient to the logarithmic spectrum of the original signal, thereby achieving utilization of the RNN noise reduction method in real-time conferences. In the present disclosure, when inputting the RNN model for estimation, only the logarithmic spectrum of the current frame needs to be inputted. The RNN model of the present disclosure has few requirements on inputted information, without performing huge preprocessing on the received speech signal, which in turn reduces computation burden, increases response speed, and enhances real-time performance.

Abstract: Disclosed herein are a method and a system for wireless transmission of auxiliary stream data based on a video conference system. The method comprises: connecting a first auxiliary stream device to the master of the video conference via wireless pairing; running a screening software by a second auxiliary stream device; transferring the audio and video data of the second auxiliary stream device to the master of the video conference via the screening software. The method and the system as provided herein can solve the problems which may be caused by being incompatible with audio and video interface cables, thereby improving participants' experience.