CN203445870U - Audio frequency communication apparatus - Google Patents
Audio frequency communication apparatus Download PDFInfo
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- CN203445870U CN203445870U CN201320516553.3U CN201320516553U CN203445870U CN 203445870 U CN203445870 U CN 203445870U CN 201320516553 U CN201320516553 U CN 201320516553U CN 203445870 U CN203445870 U CN 203445870U
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Abstract
The utility model provides an audio frequency communication apparatus, comprising peripheral equipment with an audio frequency head (referred to as audio frequency head equipment for short as below) and audio frequency port equipment. The audio frequency head equipment comprises a CPU and a first signal transmitting and receiving circuit; the first I/O interface of the CPU is connected with the audio frequency interface of the audio frequency port equipment through the first signal transmitting and receiving circuit; the audio frequency head equipment also includes a second signal transmitting and receiving circuit; and the second I/O port of the CPU is connected with the microphone interface of the audio frequency port equipment through the second signal transmitting and receiving circuit. According to the audio frequency communication apparatus, the complexity of hardware resource is reduced, power consumption of audio frequency communication is reduced, and the application scope of audio frequency communication is enlarged.
Description
Technical field
The utility model relates to a kind of communication apparatus technical field, relates in particular to a kind of voice communication device.
Background technology
Voice communication is used widely in different field gradually, voice communication refers to that one of them equipment is used audio head, another equipment is used audio port, the data communication of carrying out when audio head inserts audio port, according to the waveform shape of communication signal, can be divided into square wave mode, the types such as FSK mode, wherein the exemplary of audio port equipment is mobile phone, the voice communication that audio head equipment and mobile phone carried out in recent years becomes focus gradually, common communication modes is fsk signal communication (sinusoidal wave mode) at present, may there is following problem in this communication modes: the one, and fsk signal frequency limited system, be difficult to be promoted widely, the 2nd, fsk signal basic waveform is sinusoidal wave, the decoding algorithm complexity of decoding end is higher, the 3rd, transmitting terminal sends sinusoidal wave need more complicated hardware resource and interlock circuit design, be generally the device DAC that digital signal converts analog signal to, cost is higher, the power consumption of DAC is larger simultaneously, affect equipment useful life of mobile device especially, to a certain degree affected the range of application of voice communication.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of voice communication device, and this voice communication apparatus structure is simple, greatly reduces the complexity of hardware resource, has reduced the power consumption of voice communication simultaneously.
Problem of the present utility model is achieved in that a kind of voice communication device, comprises audio head equipment and audio port equipment, and described audio head equipment includes a CPU and first signal transmitter/receiver circuit; An I/O interface of described CPU is connected with the audio interface of audio port equipment through first signal transmitter/receiver circuit.
Further, described audio port equipment is hand-hold communication appliance.
Further, described first signal transmitter/receiver circuit comprises: resistance R 1, resistance R 2, resistance R 3, resistance R 4, capacitor C 1 and comparator; The one I/O interface is connected with the 1st pin of described comparator, a termination power of described resistance R 1, and the other end is connected with the 2nd pin of resistance R 2, comparator respectively, and described resistance R 2 connects signal ground; The 3rd pin of described comparator is connected with resistance R 4, capacitor C 1 respectively, and described resistance R 4 connects signal ground; Described capacitor C 1 is connected with described audio interface, resistance R 3 respectively, and described resistance R 3 connects signal ground.
Further, described audio head equipment also comprises a secondary signal transmitter/receiver circuit; The 2nd I/O interface of described CPU is connected with the microphone interface of audio port equipment through secondary signal transmitter/receiver circuit.
Further, described secondary signal transmitter/receiver circuit comprises: resistance R 5, resistance R 6, resistance R 7 and resistance R 8; Described the 2nd I/O interface is connected with microphone interface with resistance R 7 through resistance R 5; One end of described resistance R 6 is connected with resistance R 5, and the other end is connected with signal ground; One end of described resistance R 8 is connected with resistance R 7, and the other end is connected with signal ground.
The utlity model has following advantage: voice communication device of the present utility model is only used IO mouth resource, some application scenarios only need to use low side chip can realize design, reduced hardware cost, simultaneously owing to not needing to use the complex hardware resources such as DAC, power consumption is well reduced, and the scope of application is wider.
Accompanying drawing explanation
Fig. 1 is the structural representation of voice communication device of the present utility model.
Embodiment
Refer to shown in Fig. 1, preferably a kind of voice communication device of the present utility model, comprise audio head equipment and audio port equipment, this audio head equipment is to be the peripheral hardware with audio head, and described audio head equipment includes a CPU, first signal transmitter/receiver circuit and secondary signal transmitter/receiver circuit; An I/O interface of described CPU is connected with the audio interface of audio port equipment through first signal transmitter/receiver circuit; The 2nd I/O interface of described CPU is connected with the microphone interface of audio port equipment through secondary signal transmitter/receiver circuit.
In the utility model, wherein, described audio port equipment is hand-hold communication appliance, as: mobile phone, IPAD etc.
In addition, described first signal transmitter/receiver circuit comprises: resistance R 1, resistance R 2, resistance R 3, resistance R 4, capacitor C 1 and comparator; The one I/O interface is connected with the 1st pin of described comparator, a termination power of described resistance R 1, and the other end is connected with the 2nd pin of resistance R 2, comparator respectively, and described resistance R 2 connects signal ground; The 3rd pin of described comparator is connected with resistance R 4, capacitor C 1 respectively, and described resistance R 4 connects signal ground; Described capacitor C 1 is connected with described audio interface, resistance R 3 respectively, and described resistance R 3 connects signal ground.
Described secondary signal transmitter/receiver circuit comprises: resistance R 5, resistance R 6, resistance R 7 and resistance R 8; Described the 2nd I/O interface is connected with microphone interface with resistance R 7 through resistance R 5; One end of described resistance R 6 is connected with resistance R 5, and the other end is connected with signal ground; One end of described resistance R 8 is connected with resistance R 7, and the other end is connected with signal ground.Described audio head equipment sends voice data to audio port equipment through the 2nd I/O interface by secondary signal transmitter/receiver circuit, and audio port equipment receives data by microphone interface; Or audio port equipment sends voice data to audio head equipment through audio interface by first signal transmitter/receiver circuit, audio head equipment receives data by an I/O interface.
In actual applications, voice communication device of the present utility model, can be: comprise audio head equipment and audio port equipment, this audio head equipment only includes a CPU and first signal transmitter/receiver circuit; An I/O interface of described CPU is connected with the audio interface of audio port equipment through first signal transmitter/receiver circuit; Or this audio head equipment only includes a CPU and secondary signal transmitter/receiver circuit; The 2nd I/O interface of described CPU is connected with the microphone interface of audio port equipment through secondary signal transmitter/receiver circuit.
In a word, voice communication device of the present utility model is only used IO mouth resource, and some application scenarios only need to use low side chip can realize design, reduced hardware cost, owing to not needing to use the complex hardware resources such as DAC, power consumption is well reduced simultaneously, and the scope of application is wider.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a voice communication device, is characterized in that: comprise audio head equipment and audio port equipment, described audio head equipment includes a CPU and first signal transmitter/receiver circuit; An I/O interface of described CPU is connected with the audio interface of audio port equipment through first signal transmitter/receiver circuit.
2. a kind of voice communication device according to claim 1, is characterized in that: described audio port equipment is hand-hold communication appliance.
3. a kind of voice communication device according to claim 1, is characterized in that: described first signal transmitter/receiver circuit comprises: resistance R 1, resistance R 2, resistance R 3, resistance R 4, capacitor C 1 and comparator; The one I/O interface is connected with the 1st pin of described comparator, a termination power of described resistance R 1, and the other end is connected with the 2nd pin of resistance R 2, comparator respectively, and described resistance R 2 connects signal ground; The 3rd pin of described comparator is connected with resistance R 4, capacitor C 1 respectively, and described resistance R 4 connects signal ground; Described capacitor C 1 is connected with described audio interface, resistance R 3 respectively, and described resistance R 3 connects signal ground.
4. a kind of voice communication device according to claim 1, is characterized in that: described audio head equipment also comprises a secondary signal transmitter/receiver circuit; The 2nd I/O interface of described CPU is connected with the microphone interface of audio port equipment through secondary signal transmitter/receiver circuit.
5. a kind of voice communication device according to claim 4, is characterized in that: described secondary signal transmitter/receiver circuit comprises: resistance R 5, resistance R 6, resistance R 7 and resistance R 8; Described the 2nd I/O interface is connected with microphone interface with resistance R 7 through resistance R 5; One end of described resistance R 6 is connected with resistance R 5, and the other end is connected with signal ground; One end of described resistance R 8 is connected with resistance R 7, and the other end is connected with signal ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516553.3U CN203445870U (en) | 2013-08-23 | 2013-08-23 | Audio frequency communication apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516553.3U CN203445870U (en) | 2013-08-23 | 2013-08-23 | Audio frequency communication apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203445870U true CN203445870U (en) | 2014-02-19 |
Family
ID=50096882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320516553.3U Expired - Lifetime CN203445870U (en) | 2013-08-23 | 2013-08-23 | Audio frequency communication apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203445870U (en) |
-
2013
- 2013-08-23 CN CN201320516553.3U patent/CN203445870U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |