CN-224218414-U - Communication function expansion device applied to desktop environment

CN224218414UCN 224218414 UCN224218414 UCN 224218414UCN-224218414-U

Abstract

The utility model is suitable for the technical field of communication electronics, and provides a communication function expanding device applied to a desktop environment, the device comprises an audio/video expanding sub-circuit communicated with a communication module, wherein the audio/video expanding sub-circuit comprises a display split-screen circuit and an audio control circuit, the display split-screen circuit is used for converting one path of display data of the communication module into two paths of synchronous display output data, one path of display output is connected with a local touch display screen, the other path of display output is connected with a local projection module, and the audio control circuit is used for implementing audio channel control through state detection of a mobile phone state switch.

Inventors

XIAO NING
ZHU HAIBIN
CHEN NING
SANG ZEFANG

Assignees

深圳市蓝硕通讯设备有限公司

Dates

Publication Date: 20260508
Application Date: 20250523

Claims (7)

1. The communication function expanding device applied to the desktop environment is characterized by comprising an audio and video expanding sub-circuit (200) connected with a communication module (100), wherein the audio and video expanding sub-circuit (200) comprises a split screen circuit, the split screen circuit is used for converting one path of display data of the communication module (100) into two paths of same display output data, one path of display output is connected with a local touch display screen (800), the other path of display output is connected with a local projection module (600), and the split screen circuit is powered by the communication module (100) and is connected with the communication module (100) through an IIC bus and controlled.
2. The communication function expanding device applied to the desktop environment according to claim 1, wherein the audio/video expansion sub-circuit (200) further comprises a handle state switch, an uplink audio frequency change-over switch, a downlink audio frequency device comprising a hands-free loudspeaker and a handle receiver, and an uplink audio frequency device comprising a handle microphone and a hands-free microphone, the hands-free loudspeaker and the handle receiver are respectively connected with corresponding downlink audio frequency interfaces of the communication module (100) to form a downlink audio frequency channel of the audio/video expansion sub-circuit (200), an input end of the uplink audio frequency change-over switch is connected with the handle microphone and the hands-free microphone, and an output end of the uplink audio frequency change-over switch is connected with an uplink audio frequency interface of the communication module (100) to form an uplink audio frequency channel of the audio/video expansion sub-circuit (200).
3. The communication function expanding device applied to the desktop environment according to claim 1, wherein at least one of a cellular network transceiver, a WIFI network transceiver and an ethernet controller is arranged on the communication module (100), and a video input interface connected with the local camera (700) is further arranged on the communication module (100).
4. The communication function expanding device applied to the desktop environment according to claim 2, further comprising a USB-C data expanding sub-circuit (400) connected with the communication module (100), wherein the USB-C data expanding sub-circuit (400) is provided with a direct current power input interface, a USB OTG interface, an HDMI interface and an RJ45 interface.
5. The communication function expanding device applied to the desktop environment according to claim 4, further comprising a desktop control microprocessor (300), wherein the desktop control microprocessor (300) is connected with the local key set (500) through an IO port, and is connected with the communication module (100) through the USB-C data expanding sub-circuit (400) for controlling the local projection module (600) at least comprising switching, forward and reverse focal length adjustment and trapezoidal correction.
6. The communication function expanding device applied to the desktop environment according to claim 5, wherein the desktop control microprocessor (300) is connected with a handle state switch and an uplink audio frequency change-over switch through an IO port, the handle state switch is detected, the uplink audio frequency change-over switch is controlled to selectively connect the handle microphone or the hands-free microphone as an uplink audio frequency channel, a USB-C data expanding sub-circuit (400) is connected with the communication module (100), and the communication module (100) is selectively connected with the handle receiver or the hands-free loudspeaker as a downlink audio frequency channel, so that switching of conversation voice between a handle mode and a hands-free mode is realized.
7. The communication function expanding device applied to the desktop environment according to claim 2, wherein the communication module (100) is connected with the local key set (500) through an IO port and is used for controlling the local projection module (600) at least comprising a switch, forward and reverse focal length adjustment and trapezoid correction, is connected with a handle state switch and an uplink audio switch through the IO port, detects the handle state switch, and controls the uplink audio switch to selectively connect the handle microphone or the hands-free microphone as an uplink audio channel and selectively connect the handle receiver or the hands-free loudspeaker as a downlink audio channel.

Description

Communication function expansion device applied to desktop environment Technical Field The utility model belongs to the technical field of communication electronics, and particularly relates to a communication function expanding device applied to a desktop environment. Background At present, mobile phones and IP phone products based on modern communication technology become public necessities, and the use frequency is gradually increased under working scenes based on various applications of the mobile phones or the IP phone products, such as a micro-teleconference, a PPT demonstration and the like, and particularly, the prior art mainly has two types of defects aiming at the use environment of multi-ginseng and communication: (1) In the scene that a host and a participant need to use a plurality of display ends with different visual angles, most of communication terminal products such as mobile phones or IP phones only have a single display interface and USB-C ports, if an adapter is used for accessing an external projector, the ports are occupied, and therefore the defect that the service time is too short due to incapacity of charging exists; (2) Communication terminal products such as mobile phones and IP phones accessed to a projector often have temporary voice conversation and conversation mode switching in a conference display scene during the progress of a multi-person conference, and the conventional products and techniques are troublesome to operate. Disclosure of utility model The embodiment of the utility model aims to provide a communication function expanding device applied to a desktop environment, and aims to solve the problems of the prior art in the background technology. The embodiment of the utility model is realized in such a way that the communication function expanding device applied to the desktop environment comprises an audio and video expanding sub-circuit communicated with a communication module, wherein the audio and video expanding sub-circuit comprises a split screen circuit, the split screen circuit is used for converting one path of display input data of the communication module into two paths of same display output data, one path of display output data is connected with a local touch display screen, and the other path of display output data is connected with a local projection module. The audio and video expansion sub-circuit further comprises a handle state switch, an uplink audio change-over switch, a downlink audio device comprising a hands-free loudspeaker and a handle receiver and an uplink audio device comprising a handle microphone and a hands-free microphone, wherein the hands-free loudspeaker and the handle receiver are respectively connected with a downlink audio interface of the communication module, the input end of the uplink audio change-over switch is connected with the handle microphone and the hands-free microphone, and the output end of the uplink audio change-over switch is connected with an uplink audio interface of the communication module. Preferably, at least one of a cellular network transceiver, a WIFI network transceiver and an Ethernet controller is arranged on the communication module, and a video input interface connected with the local camera is further arranged on the communication module. More preferably, the USB-C data expansion sub-circuit is communicated with the communication module, and the USB-C data expansion sub-circuit is provided with a direct current power input interface, a USB OTG interface, an HDMI interface and an RJ45 interface. The desktop control microprocessor is connected with the handle state switch and the uplink audio switch through the IO port, judges a call mode through detecting the handle state switch, controls the uplink audio switch to selectively connect the handle microphone or the hands-free microphone as an uplink audio channel, and further transmits call mode information to the communication module to selectively connect the handle earphone or the hands-free loudspeaker as a downlink audio channel, so that switching of call voice between the handle mode and the hands-free mode is realized. More preferably, the communication module is connected with the local key set through an IO port and is used for controlling the local projection module at least comprising a switch, forward and reverse focal length adjustment and trapezoid correction, the desktop control microprocessor is connected with the handle state switch and the uplink audio switch through the IO port, the conversation mode is judged through detecting the handle state switch, the uplink audio switch is controlled to be selectively connected with the handle microphone or the hands-free microphone as an uplink audio channel, and further the handle earphone or the hands-free loudspeaker is selectively connected with the handle microphone or the hands-free loudspeaker as a downlink audio channel, so that conversation voice can be switched between the hand