CN203181206U - Audio communication circuit for mobile phone payment - Google Patents
Audio communication circuit for mobile phone payment Download PDFInfo
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- CN203181206U CN203181206U CN 201320180832 CN201320180832U CN203181206U CN 203181206 U CN203181206 U CN 203181206U CN 201320180832 CN201320180832 CN 201320180832 CN 201320180832 U CN201320180832 U CN 201320180832U CN 203181206 U CN203181206 U CN 203181206U
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Abstract
The utility model discloses an audio communication circuit for mobile phone payment, which comprises a radio frequency communication chip, a speech processing circuit, a modulation-demodulation circuit, a crystal oscillator, a microcontroller and an audio amplification circuit. The radio frequency communication chip is connected to the modulation-demodulation circuit, the modulation-demodulation circuit and the speech processing circuit are connected to data ports of the microcontroller; an output terminal of the speech processing circuit is connected to the audio amplification circuit; an output terminal of the audio amplification circuit is connected to a loudspeaker of a mobile phone; an output terminal of a microprocessor is connected to an LCD display screen; output terminals of the crystal oscillator are respectively connected to the modulation-demodulation circuit, the microcontroller and the speech processing unit. By employing the technology solution, the audio communication circuit for mobile phone payment has better speech quality and higher capacity. On the premise that the high quality speech is transmitted, bit rate of speech decoding is decreased. Compared with the audio payment system in the traditional mobile phone, the audio communication circuit for mobile phone payment can contain more voice channels within a certain bandwidth.
Description
Technical field
The utility model relates to a kind of audio communication circuit, particularly relates to a kind of audio communication circuit for mobile-phone payment.
Background technology
Along with the development of mobile technology with popularize, mobile-phone payment becomes emerging E-Payment service form gradually.Mobile-phone payment has characteristics such as mobility, promptness, personalization, convenience, as long as make the user hold mobile phone, just can finish transaction with various objects whenever and wherever possible.The data of announcing according to China Unionpay show that by the end of the year in 2011, China's mobile-phone payment customized user total amount broke through 2,100 ten thousand families, only the first half of the year in 2011, realize 6268.5 ten thousand of transaction, totally 170 hundred million yuan of payments.The data that Ministry of Industry and Information announces show that China's cellphone subscriber's quantity reached 7.47 hundred million families in 2011.This makes mobile-phone payment more and more be subjected to bank, mobile operator, businessman and consumer's favor.The handset audio payment technology is to use a kind of emerging technology that is born for solving in the mobile phone reality near field, thoroughly stops NFC etc. to the dependence of mobile phone specialized hardware and the disadvantage of Bluetooth technology collaborative work ability.Yet the audio frequency payment system in the existing mobile phone can not satisfy people to the requirement of communication quality.
The utility model content
The purpose of this utility model is that the audio communication circuit that is used for mobile-phone payment that a kind of voice quality is good, can realize the more voice passage is provided in order to address the above problem.
The utility model is achieved through the following technical solutions:
A kind of audio communication circuit for mobile-phone payment, comprise the radio-frequency communication chip, speech processing circuit, modulation-demodulation circuit, crystal oscillator, microcontroller and audio amplifier circuit, described radio-frequency communication chip is connected with described modulation-demodulation circuit, being connected with the FPDP of described microprocessor with described speech processing circuit of described modulation-demodulation circuit, the output of described speech processing circuit is connected with described audio amplifier circuit, the output of described audio amplifier circuit is connected with the mobile phone loudspeaker, the output of described microprocessor is connected with LCD display, the output of described crystal oscillator respectively with described modulation-demodulation circuit, microcontroller is connected with described speech processing circuit.
Described speech processing circuit comprises audio compression/decompression machine, the high-speed synchronous serial port, Voice decoder, the fec decoder device, the FEC encoder, frame supervisor, speech coder and register, described high-speed synchronous serial port is connected with the input of described audio compression/decompression machine and the input of described speech coder, the output of described audio compression/decompression machine is connected with the input of described speech coder, described frame supervisor is connected with the input of described speech coder and the input of described speech coder respectively, the output of described speech coder is connected with the input of described FEC encoder, the output of described fec decoder device is connected with the input of described FEC encoder and the input of described Voice decoder, the output of described Voice decoder is connected with described high-speed synchronous serial port, the output of described FEC encoder is connected with the input of described register, and the output of described register is connected with the input of described fec decoder device.
The beneficial effects of the utility model are:
By adopting technique scheme, the utility model voice quality better, power system capacity is bigger.Sending under the prerequisite that passes high-quality speech, the encoding and decoding speech bit rate reduces, and compares with the audio frequency payment system in the traditional mobile phone, and the utility model can hold more voice channel in certain bandwidth.
Description of drawings
Fig. 1 is the circuit block diagram that the utility model is used for the audio communication circuit of mobile-phone payment;
Fig. 2 is the circuit block diagram of speech processing circuit in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments:
As shown in Figure 1, the utility model is used for the audio communication circuit of mobile-phone payment, comprise the radio-frequency communication chip, speech processing circuit, modulation-demodulation circuit, crystal oscillator, microcontroller and audio amplifier circuit, described radio-frequency communication chip is connected with described modulation-demodulation circuit, being connected with the FPDP of described microprocessor with described speech processing circuit of described modulation-demodulation circuit, the output of described speech processing circuit is connected with described audio amplifier circuit, the output of described audio amplifier circuit is connected with the mobile phone loudspeaker, the output of described microprocessor is connected with LCD display, the output of described crystal oscillator respectively with described modulation-demodulation circuit, microcontroller is connected with described speech processing circuit.
As shown in Figure 2, described speech processing circuit comprises audio compression/decompression machine, the high-speed synchronous serial port, Voice decoder, the fec decoder device, the FEC encoder, frame supervisor, speech coder and register, described high-speed synchronous serial port is connected with the input of described audio compression/decompression machine and the input of described speech coder, the output of described audio compression/decompression machine is connected with the input of described speech coder, described frame supervisor is connected with the input of described speech coder and the input of described speech coder respectively, the output of described speech coder is connected with the input of described FEC encoder, the output of described fec decoder device is connected with the input of described FEC encoder and the input of described Voice decoder, the output of described Voice decoder is connected with described high-speed synchronous serial port, the output of described FEC encoder is connected with the input of described register, and the output of described register is connected with the input of described fec decoder device.
Claims (2)
1. audio communication circuit that is used for mobile-phone payment, it is characterized in that: comprise the radio-frequency communication chip, speech processing circuit, modulation-demodulation circuit, crystal oscillator, microcontroller and audio amplifier circuit, described radio-frequency communication chip is connected with described modulation-demodulation circuit, being connected with the FPDP of described microprocessor with described speech processing circuit of described modulation-demodulation circuit, the output of described speech processing circuit is connected with described audio amplifier circuit, the output of described audio amplifier circuit is connected with the mobile phone loudspeaker, the output of described microprocessor is connected with LCD display, the output of described crystal oscillator respectively with described modulation-demodulation circuit, microcontroller is connected with described speech processing circuit.
2. the audio communication circuit for mobile-phone payment according to claim 1, it is characterized in that: described speech processing circuit comprises audio compression/decompression machine, the high-speed synchronous serial port, Voice decoder, the fec decoder device, the FEC encoder, frame supervisor, speech coder and register, described high-speed synchronous serial port is connected with the input of described audio compression/decompression machine and the input of described speech coder, the output of described audio compression/decompression machine is connected with the input of described speech coder, described frame supervisor is connected with the input of described speech coder and the input of described speech coder respectively, the output of described speech coder is connected with the input of described FEC encoder, the output of described fec decoder device is connected with the input of described FEC encoder and the input of described Voice decoder, the output of described Voice decoder is connected with described high-speed synchronous serial port, the output of described FEC encoder is connected with the input of described register, and the output of described register is connected with the input of described fec decoder device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180832 CN203181206U (en) | 2013-04-11 | 2013-04-11 | Audio communication circuit for mobile phone payment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180832 CN203181206U (en) | 2013-04-11 | 2013-04-11 | Audio communication circuit for mobile phone payment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203181206U true CN203181206U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320180832 Expired - Fee Related CN203181206U (en) | 2013-04-11 | 2013-04-11 | Audio communication circuit for mobile phone payment |
Country Status (1)
| Country | Link |
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| CN (1) | CN203181206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9574748B2 (en) | 2013-07-30 | 2017-02-21 | Shenzhen Yameite Technology Co. Ltd. | Illumination devices |
| US9915402B2 (en) | 2013-07-30 | 2018-03-13 | Shenzhen Yameite Technology Co. Ltd. | Illumination devices |
-
2013
- 2013-04-11 CN CN 201320180832 patent/CN203181206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9574748B2 (en) | 2013-07-30 | 2017-02-21 | Shenzhen Yameite Technology Co. Ltd. | Illumination devices |
| US9915402B2 (en) | 2013-07-30 | 2018-03-13 | Shenzhen Yameite Technology Co. Ltd. | Illumination devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140411 |