CN104008641A - Mobile terminal, card reader, mobile terminal audio communication method and mobile terminal voice communication system - Google Patents
Mobile terminal, card reader, mobile terminal audio communication method and mobile terminal voice communication system Download PDFInfo
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- CN104008641A CN104008641A CN201310658732.5A CN201310658732A CN104008641A CN 104008641 A CN104008641 A CN 104008641A CN 201310658732 A CN201310658732 A CN 201310658732A CN 104008641 A CN104008641 A CN 104008641A
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Abstract
The invention discloses a mobile terminal audio communication method. The method comprises the following steps: a carrier transmission unit converts carriers with a fixed frequency to an audio format signal, and transmits the signal to the input end of a switch unit; a processing unit encodes the signal to be transmitted into an on-off control signal, and uses the control signal to control the on-off of the switch unit; the switch unit transmits a modulation signal from an output terminal to the MIC channel of a mobile terminal audio port, and the modulation signal is generated through modulating the carriers by the control signal; and the mobile terminal decodes the modulation signal introduced through the MIC channel. The invention also discloses a mobile terminal audio communication system, the mobile terminal and a card reader.
Description
Technical field
The present invention relates to a kind of audio frequency of mobile terminal communication means, system, mobile terminal, card reader.
Background technology
At present, by mobile terminal, carry out the E-Payment means that portable payment is becoming main flow, voice communication of the prior art is one of means.
The scheme of voice communication of the prior art is, communicating pair converts the numerical information of needs transmission to sound signal, via voice-grade channel, carry out signal transmitting and receiving again, this just requires communicating pair to have good audio frequency transmission-receiving function, can compatible panoramic audio frequency apparatus.
The problem that above-mentioned prior art exists is, due to existing mobile terminal, for example mobile phone or PAD industry do not have a strict formulation standard for audio frequency, each mobile terminal production firm is according to the Model Design audio scheme of oneself, while causing carrying out voice communication with mobile terminal, be difficult to accomplish whole compatibilities, the popularization of mobile terminal payment is affected.
Summary of the invention
For solving prior art Zhong Yinge mobile terminal production firm according to the Model Design audio scheme of oneself, while causing carrying out voice communication with mobile terminal, difficulty is accomplished all compatible technological deficiency, the invention provides a kind of audio frequency of mobile terminal communication means, system, mobile terminal, card reader.
First technical scheme that the present invention adopts is:
A kind of audio frequency of mobile terminal communication means is provided, comprises step: carrier wave transmitting element is converted to the carrier wave of fixed frequency the signal of audio format, and signal is transferred to the input end of switch element; The control signal that processing unit is break-make by Signal coding to be transmitted, and use the break-make of described control signal gauge tap unit; Switch element transfers to modulation signal the MIC passage of audio frequency of mobile terminal mouth from output terminal, by carrier wave, through control signal, modulation generates described modulation signal; Mobile terminal is decoded the modulation signal importing into by described MIC passage.
Second technical scheme that the present invention adopts is:
A kind of mobile terminal is provided, comprises carrier wave transmitting element and decoding unit; Described carrier wave transmitting element is converted to the carrier wave of fixed frequency the signal of audio format, and signal is transferred to the input end of switch element by the L/R sound channel of audio frequency of mobile terminal mouth; Described decoding unit is for decoding the modulation signal importing into by described MIC passage, and wherein, described modulation signal is that through control signal, modulation generates by carrier wave, and described control signal is by the signal of the break-make of generation that signal to be transmitted is encoded.
The 3rd technical scheme that the present invention adopts is:
A kind of audio frequency of mobile terminal communication system is provided, comprises mobile terminal and card reader, described mobile terminal is as above described in second technical scheme, and described card reader comprises processing unit and switch element; The control signal that it is break-make by Signal coding to be transmitted that described processing unit is used for, and use described control signal to control the break-make of described switch element; Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
The 4th technical scheme that the present invention adopts is:
A kind of card reader is provided, comprises processing unit and switch element; The control signal that it is break-make by Signal coding to be transmitted that described processing unit is used for, and use described control signal to control the break-make of described switch element; Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
The 5th technical scheme that the present invention adopts is:
A kind of mobile terminal is provided, comprise decoding unit, described decoding unit is for decoding the modulation signal importing into by described MIC passage, wherein, described modulation signal is that through control signal, modulation generates by carrier wave, and described control signal is by the signal of the break-make of generation that signal to be transmitted is encoded.
The 6th technical scheme that the present invention adopts is:
A kind of audio frequency of mobile terminal communication system is provided, comprises mobile terminal and card reader, described mobile terminal is as above described in the 5th technical scheme, and described card reader comprises processing unit and switch element, and described processing unit comprises the second carrier wave transmitting element; Described the second carrier wave transmitting element is used for the carrier wave of fixed frequency to be converted to the signal of audio format, and signal is transferred to the input end of switch element; The control signal that it is break-make by Signal coding to be transmitted that described processing unit is used for, and use described control signal to control the break-make of described switch element; Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
The 7th technical scheme that the present invention adopts is:
A kind of card reader is provided, comprises processing unit and switch element, described processing unit comprises the second carrier wave transmitting element; Described the second carrier wave transmitting element is converted to the carrier wave of fixed frequency the signal of audio format, and signal is transferred to the input end of switch element; The control signal that it is break-make by Signal coding to be transmitted that described carrier wave transmitting element is used for, and use described control signal to control the break-make of described switch element; Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
The invention has the beneficial effects as follows: be different from prior art Zhong Yinge mobile terminal production firm according to the Model Design audio scheme of oneself, while causing carrying out voice communication with mobile terminal, difficulty is accomplished all compatible technological deficiency, the invention provides a kind of audio frequency of mobile terminal communication means, system, mobile terminal, card reader, by carrier wave transmitting element, send fixed frequency carrier wave, by the control signal corresponding with signal to be transmitted, switch element is carried out to break-make control, make the output terminal output modulation signal corresponding with signal to be transmitted of switch element, then decode this fixed frequency modulation signal of mobile terminal generates the information to be transmitted that card reader sends to mobile terminal, so, card reader to the data transmission of mobile terminal because not being subject to the restriction of audio coding decoding pattern, realize the compatibility with various types of mobile terminal.
Accompanying drawing explanation
Fig. 1 is the flowchart of a kind of audio frequency of mobile terminal communication means in an embodiment of the present invention;
Fig. 2 is the switch element output waveform figure of a corresponding coding example;
Fig. 3 is the concrete implementing procedure figure of step S104 in Fig. 1;
Fig. 4 is the system chart of a kind of audio frequency of mobile terminal communication system in first embodiment of the invention;
Fig. 5 is the system chart of a kind of audio frequency of mobile terminal communication system in second embodiment of the invention;
Fig. 6 is the functional block diagram of decoding unit.
Mobile terminal 10
Carrier wave transmitting element 11
Decoding unit 12
Card reader 20
Processing unit 21
Switch element 22
The second carrier wave transmitting element 23
Embodiment
By describing technology contents of the present invention, structural attitude in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Referring to Fig. 1, is the flowchart of a kind of audio frequency of mobile terminal communication means in an embodiment of the present invention.This audio frequency of mobile terminal communication means is applied in an audio frequency of mobile terminal communication system, this audio frequency of mobile terminal communication system comprises mobile terminal and the card reader with audio interface, and card reader comprises the switch element being connected by audio interface with mobile terminal and the processing unit being electrically connected to switch element.Described mobile terminal can be the electronic equipment such as smart mobile phone, PDA, panel computer, notebook with audio interface.
This audio frequency of mobile terminal communication means comprises step:
Step S101, carrier wave transmitting element are converted to the carrier wave of fixed frequency the signal of audio format, and signal are transferred to the input end of switch element;
The control signal that step S102, processing unit are break-make by Signal coding to be transmitted, and use the break-make of described control signal gauge tap unit;
Step S103, switch element transfer to modulation signal the MIC passage of audio frequency of mobile terminal mouth from output terminal, by carrier wave, through control signal, modulation generates described modulation signal;
Step S104, mobile terminal are decoded the modulation signal importing into by described MIC passage.
Below, the coding principle for the treatment of signal transmission is illustrated, in this example, processing unit is when transmission logic ' 1 ', and switch is reverse, and the duration is made as T, this duration T is at least greater than the subcarrier time in 1 cycle, processing unit is when transmission logic ' 0 ', and switch is reverse, and the duration is 2T.Referring to Fig. 2, is the switch element output waveform figure of a corresponding coding example.Such as encoding 01, the waveform of output as shown in Figure 2.
Wherein, the carrier wave of described fixed frequency can be sine wave, triangular wave, square wave etc.
Wherein, described signal to be transmitted comprises magnetic card signal, IC-card signal, RF signal etc.Described signal to be transmitted is that processing unit acquires by input media, and described input media is correspondingly magnetic card reading device, IC-card reading device, RF signal reader etc.
Wherein, in the first embodiment, described carrier wave transmitting element is arranged in mobile terminal, voice data is transferred to the input end of switch element by the L/R sound channel of audio frequency of mobile terminal mouth.In the second embodiment, described carrier wave transmitting element is directly connected with switch element.
Referring to Fig. 3, is the concrete implementing procedure figure of step S104 in Fig. 1.In the present embodiment, described step S104 specifically comprises step:
Step S1041, record carrier wave duration or zero level duration;
Step S1042, whether be greater than Preset Time according to the duration of the duration of carrier wave or zero level, whether judgement transmission finishes;
Step S1043, when judging end of transmission (EOT), according to coding rule, by recording duration length sequences, convert logic sequence to.
Another aspect of the present invention provides a kind of audio frequency of mobile terminal communication system, and above-mentioned a kind of audio frequency of mobile terminal communication means is applied in this system.
Referring to Fig. 4, is the system chart of a kind of audio frequency of mobile terminal communication system in first embodiment of the invention.This audio frequency of mobile terminal communication system comprises mobile terminal 10 and card reader 20.
Described mobile terminal 10 comprises carrier wave transmitting element 11 and decoding unit 12.Described card reader 20 comprises processing unit 21 and switch element 22.Particularly, described processing unit 21 is connected with switch element 22 by GPIO.
Described carrier wave transmitting element 11 is for the carrier wave of fixed frequency being converted to the signal of audio format, and signal transferred to the input end of switch element 22 by the L/R sound channel of audio frequency of mobile terminal mouth.
Described processing unit 21 is for the control signal that is break-make by Signal coding to be transmitted, and uses described control signal to control the break-make of described switch element 22.
Described switch element 22 is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
Described decoding unit 12 is for decoding the modulation signal importing into by described MIC passage.
Wherein, described signal to be transmitted comprises magnetic card signal, IC-card signal, RF signal etc.Described signal to be transmitted is that processing unit acquires by input media, and described input media is correspondingly magnetic card reading device, IC-card reading device, RF signal reader etc.
Wherein, the carrier wave of described fixed frequency can be sine wave, triangular wave, square wave etc.
Referring to Fig. 5, is the system chart of a kind of audio frequency of mobile terminal communication system in second embodiment of the invention.This audio frequency of mobile terminal communication system comprises mobile terminal 10 and card reader 20.Be with the difference of the first embodiment, described mobile terminal 10 only comprises decoding unit 12, and described card reader 20 not only comprises processing unit 21 and switch element 22, and described processing unit 21 also comprises the second carrier wave transmitting element 23.Particularly, described processing unit 21 is connected with switch element 22 by GPIO.
Described the second carrier wave transmitting element 23 is for the carrier wave of fixed frequency being converted to the signal of audio format, and signal transferred to the input end of switch element 22.Described processing unit 21 is for the control signal that is break-make by Signal coding to be transmitted, and uses described control signal to control the break-make of described switch element 22.Described switch element 22 is for modulation signal is transferred to the MIC passage of mobile terminal 10 audio ports from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.Described decoding unit 12 is for decoding the modulation signal importing into by described MIC passage.
Referring to Fig. 6, is the functional block diagram of decoding unit.In first and second embodiment, described decoding unit 12 specifically comprises time logging modle, judge module, modular converter.
Time logging modle is used for recording carrier wave duration or zero level duration.Judge module is for whether being greater than Preset Time according to the duration of the duration of carrier wave or zero level, and whether judgement transmission finishes.Modular converter, for when described judge module is judged end of transmission (EOT), converts logic sequence according to coding rule to by recording duration length sequences.
The invention has the beneficial effects as follows: be different from prior art Zhong Yinge mobile terminal production firm according to the Model Design audio scheme of oneself, while causing carrying out voice communication with mobile terminal, difficulty is accomplished all compatible technological deficiency, the invention provides a kind of audio frequency of mobile terminal communication means, system, mobile terminal, card reader, by carrier wave transmitting element, send fixed frequency carrier wave, by the control signal corresponding with signal to be transmitted, switch element is carried out to break-make control, make the output terminal output modulation signal corresponding with signal to be transmitted of switch element, then decode this fixed frequency modulation signal of mobile terminal generates the information to be transmitted that card reader sends to mobile terminal, so, card reader to the data transmission of mobile terminal because not being subject to the restriction of audio coding decoding pattern, realize the compatibility with all kinds of mobile terminals.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (11)
1. an audio frequency of mobile terminal communication means, is characterized in that, comprises step:
Carrier wave transmitting element is converted to the carrier wave of fixed frequency the signal of audio format, and signal is transferred to the input end of switch element;
The control signal that processing unit is break-make by Signal coding to be transmitted, and use the break-make of described control signal gauge tap unit;
Switch element transfers to modulation signal the MIC passage of audio frequency of mobile terminal mouth from output terminal, by carrier wave, through control signal, modulation generates described modulation signal;
Mobile terminal is decoded the modulation signal importing into by described MIC passage.
2. a kind of audio frequency of mobile terminal communication means according to claim 1, is characterized in that, described " mobile terminal is decoded the modulation signal importing into by described MIC passage " specifically comprises step:
Record carrier wave duration or zero level duration;
Whether be greater than Preset Time according to the duration of the duration of carrier wave or zero level, whether judgement transmission finishes;
When judging end of transmission (EOT), according to coding rule, by recording duration length sequences, convert logic sequence to.
3. a kind of audio frequency of mobile terminal communication means according to claim 1, it is characterized in that, described carrier wave transmitting element is arranged in mobile terminal, and described carrier wave transmitting element transfers to voice data the input end of described switch element by the L/R sound channel of audio frequency of mobile terminal mouth.
4. a mobile terminal, is characterized in that, comprising: carrier wave transmitting element and decoding unit;
Described carrier wave transmitting element is used for the carrier wave of fixed frequency to be converted to the signal of audio format, and signal is transferred to the input end of switch element by the L/R sound channel of audio frequency of mobile terminal mouth;
Described decoding unit is for decoding the modulation signal importing into by described MIC passage, and wherein, described modulation signal is that through control signal, modulation generates by carrier wave, and described control signal is by the signal of the break-make of generation that signal to be transmitted is encoded.
5. a kind of mobile terminal according to claim 4, is characterized in that, described decoding unit specifically comprises:
Time logging modle, for recording carrier wave duration or zero level duration;
Judge module, for whether being greater than Preset Time according to the duration of the duration of carrier wave or zero level, whether judgement transmission finishes;
Modular converter, for when described judge module is judged end of transmission (EOT), converts logic sequence according to coding rule to by recording duration length sequences.
6. an audio frequency of mobile terminal communication system, is characterized in that, comprises mobile terminal and card reader, and described mobile terminal is as described in claim 4-5 any one, and described card reader comprises processing unit and switch element;
The control signal that it is break-make by Signal coding to be transmitted that described processing unit is used for, and use described control signal to control the break-make of described switch element;
Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
7. a card reader, is characterized in that, comprises processing unit and switch element;
The control signal that it is break-make by Signal coding to be transmitted that described processing unit is used for, and use described control signal to control the break-make of described switch element;
Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
8. a mobile terminal, it is characterized in that, comprise: decoding unit, described decoding unit is for decoding the modulation signal importing into by described MIC passage, wherein, described modulation signal is that through control signal, modulation generates by carrier wave, and described control signal is by the signal of the break-make of generation that signal to be transmitted is encoded.
9. a kind of mobile terminal according to claim 8, is characterized in that, described decoding unit specifically comprises:
Time logging modle, for recording carrier wave duration or zero level duration;
Judge module, for whether being greater than Preset Time according to the duration of the duration of carrier wave or zero level, whether judgement transmission finishes;
Modular converter, for when described judge module is judged end of transmission (EOT), converts logic sequence according to coding rule to by recording duration length sequences.
10. an audio frequency of mobile terminal communication system, it is characterized in that, comprise mobile terminal and card reader, described mobile terminal is as described in claim 8-9 any one, described card reader comprises processing unit and switch element, and described processing unit comprises the second carrier wave transmitting element;
Described the second carrier wave transmitting element is used for the carrier wave of fixed frequency to be converted to the signal of audio format, and signal is transferred to the input end of switch element;
The control signal that it is break-make by Signal coding to be transmitted that described processing unit is used for, and use described control signal to control the break-make of described switch element;
Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
11. 1 kinds of card readers, is characterized in that, comprise processing unit and switch element, and described processing unit comprises the second carrier wave transmitting element;
Described the second carrier wave transmitting element is used for the carrier wave of fixed frequency to be converted to the signal of audio format, and signal is transferred to the input end of switch element;
The control signal that it is break-make by Signal coding to be transmitted that described carrier wave transmitting element is used for, and use described control signal to control the break-make of described switch element;
Described switch element is for modulation signal is transferred to the MIC passage of audio frequency of mobile terminal mouth from output terminal, and by carrier wave, through control signal, modulation generates described modulation signal.
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