Audio system having mobile phone and intercom call functions

A technology of audio system and call function, which is applied in the direction of transmission system, two-party line system station, telephone communication, etc. It can solve the problems of unsuitability, discount of use effect, and no corresponding improvement of audio system, so as to reduce audio playback The effect of simplifying the device and circuit structure

Inactive Publication Date: 2014-04-09

NEOLINK COMM TECH HANGZHOU

5 Cites 10 Cited by

AI-Extracted Technical Summary

Problems solved by technology

In the existing technology, the private network (intercom function) is only an accessory of the public network (mobile phone function), and it is mainly used as a backup call mode when the signal of the public network (mobile phone function) is poor. In the case where public network and private networ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Method used

(2) the audio frequency of public network and private network is all played by the audio playback device that public network audio processing circuit is connected, has reduced audio playback device; And can be applicable to the audio playback device of multiple different types, comprises loudspeaker, Headphones and Bluetooth, etc.;

(3) the present invention also provides recording function, utilizes public network audio processing chip to realize the recording of public network and private network call voice; The audio signal can be connected to the public network audio processing chip with only one output port, and there is no need to set up the detection circuit of the uplink audio signal and the downlink audio signal, which greatly simplifies the circuit structure.

[0068] Since the private network audio processing chip HR_C5000 in the private network audio processing circuit 31 has only one audio output port, it cannot support different types of audio playback devices 5. If the private network audio processing chip HR_C5000 directly outputs downlink audio, it will not be able to support multiple audio playback modes such as speakers, earphones, or Bluetooth at the same time; The circuit is complex and cumbersome. However, the audio of the private network communication can also be l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Abstract

The invention discloses an audio system having mobile phone and intercom call functions. The audio system comprises a public network audio system, a private network audio system and a diverter switch. The public network audio system is used to process mobile phone call audios. The public network audio system comprises a public network audio processing circuit, a public network radio-frequency circuit and a public network antenna which are serially connected successively. The private network audio system is used to process intercom call audios. The private network audio system comprises an inverting adder, a private network audio processing circuit, a private network radio-frequency circuit and a private network antenna which are serially connected successively. The inverting adder is connected with the public network audio processing circuit. The audio system of the invention has the following advantages that the random switching between mobile phone and intercom call functions can be realized; the number of audio playing devices can be reduced, and the audio system is suitable for a variety of different types of audio playing devices; the recording function is further provided, the public network and private network call voice recoding can be realized through a public network audio processing chip; and the inverting adder is added, so that the circuit structure is greatly simplified.

Application Domain

Substation equipmentTransmission +1

Technology Topic

Radio frequency circuitsSpeech sound +5

Image

Examples

Experimental program(1)

Example Embodiment

[0044] Example 1:

[0045] First, some terms mentioned in the embodiments are explained: public network communication refers to mobile phone communication methods including 2G, 3G, etc., while private network communication refers to walkie-talkie communication methods. In the communication process, uplink communication refers to the process in which the audio receiving device receives the voice and then sends it out through the antenna, while the downlink communication refers to the process in which the voice signal is received by the antenna, and then the voice is played by the audio player.

[0046] Such as figure 1 As shown, an audio system with both mobile phone and walkie-talkie call functions includes a public network audio system, a private network audio system, and a switch 4.

[0047] The public network audio system is used to process the audio of mobile phone calls. It includes a public network audio processing circuit 21, a public network radio frequency circuit 22, and a public network antenna 23 serially connected in sequence; wherein, the public network audio processing circuit 21 is connected to an audio playback device 5 The private network audio system is used to process the audio of the walkie-talkie call, which includes an inverting adder 34, a private network audio processing circuit 31, a private network radio frequency circuit 32, and a private network antenna connected in series; among them, the inverting adder 34 and the public The network audio processing circuit 21 is connected.

[0048] The switch 4 is provided with an input terminal, a first output terminal and a second output terminal; wherein the input terminal is connected to the audio receiving device 1, the first output terminal is connected to the public network audio processing circuit 21, and the second output terminal is respectively connected to the inverter The adder 34 and the private network audio processing circuit 31; the switch 4 switches between the first output terminal and the second output terminal, and selects one of the output terminals to output a signal.

[0049] The audio system includes two working modes: public network mode and private network mode. The public network mode refers to the mode that enables mobile phone calls, and the private network mode refers to the mode that enables intercom calls.

[0050] In this embodiment, the public network audio processing circuit 21 includes a public network audio processing chip, and the model of the public network audio processing chip is SC8810.

[0051] In this embodiment, the private network audio processing circuit 31 includes a private network audio processing chip, and the model of the private network audio processing chip is HR_C5000.

[0052] In this embodiment, the public network radio frequency circuit 22 includes a public network radio frequency chip, and the model of the public network radio frequency chip is SR3500.

[0053] In this embodiment, the switch 4 is an analog signal switch 4, and its model is TS5A22364.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

Classification and recommendation of technical efficacy words

Simple circuit structure

People also interested in

Mobile phone Private network

Audio system having mobile phone and intercom call functions

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Shift register unit and gate drive device

New energy automobile charging gun with charging gun head achieving temperature protection function

Over-temperature protection circuit

Frequency control circuit suitable for fixed off time control mode boost converter

Shift register unit, driving method, gate drive circuit and display device

Classification and recommendation of technical efficacy words

Backlight source driving circuit and driving circuit thereof as well as liquid crystal television

Electric-heating full-automatic soybean milk machine with fuzzy control

Interleaved parallel PFC control circuit and control method

Contactless method of supplying power

Direct-current power flow controller for multiport flexible direct-current power transmission system and control method

People also interested in