CN203014945U - Mobile terminal - Google Patents
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- CN203014945U CN203014945U CN 201220668665 CN201220668665U CN203014945U CN 203014945 U CN203014945 U CN 203014945U CN 201220668665 CN201220668665 CN 201220668665 CN 201220668665 U CN201220668665 U CN 201220668665U CN 203014945 U CN203014945 U CN 203014945U
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Abstract
The utility model discloses a mobile terminal. The mobile terminal comprises a microphone, a base-band chip and a loudspeaker, wherein the base-band chip comprises an AD converter, an encoder, a decoder and a DA converter, the microphone is connected with the encoder through the AD converter, the loudspeaker is connected with the decoder through the DA converter, a television sound accompaniment signal is transmitted to the AD converter through a simulation interface, the AD converter is used for converting the television sound accompaniment signal into a first digital signal and transmitting the first digital signal to the encoder, the encoder is used for encoding the first digital signal and transmitting an encoded first digital signal to the decoder, the decoder is used for decoding the encoded first digital signal and transmitting a decoded first digital signal to the DA converter, and the DA converter is used for converting the decoded first digital signal into a first simulation signal and transmitting the first simulation signal to the loudspeaker. The mobile terminal realizes that a sound transmission path is commonly used by the television sound accompaniment signal and a sound signal, and reduces production cost and production complexity.
Description
Technical field
The utility model relates to a kind of mobile terminal.
Background technology
At present increasing handheld device such as mobile phone etc. make people can watch anywhere or anytime TV all with the function of mobile TV.The simulation of mobile TV sound accompaniment output is inputted by the line-in(circuit of baseband chip) interface inputs in baseband chip, by responsible processing mobile TV sound accompaniments such as the volume adjuster of baseband chip inside and switchs, by loud speaker with voice output.
Can adopt by the sound accompaniment of line-in interface input mobile TV to baseband chip the baseband chip with the line-in interface, and by loud speaker with voice output.But, when not having with the line-in interface for the baseband chip in mobile phone, just sound (sound comprises the mobile TV sound accompaniment) can't be directly inputted in baseband chip, if sound be can't help baseband chip and is managed, just need to add closing and the switching of sound channel etc. of the device of peripheral hardware such as volume adjusting that amplifier and switch etc. are processed sound, sound, this certainly will increase the production cost of mobile phone.In addition, because sound can not be directly inputted in baseband chip, just can't realize the function of recording or recording a video.If want to realize the function of recording or recording a video, also need to add multimedia processor in mobile phone, the further like this complexity that has increased production cost and the mobile phone of mobile phone.
The utility model content
the technical problems to be solved in the utility model is of the prior art for the baseband chip in mobile phone during not with the line-in interface in order to overcome, need to add device such as the amplifier of peripheral hardware, switch and multimedia processor etc., increased like this defective of the complexity of the production cost of mobile phone and mobile phone, a kind of mobile terminal is provided, the utility model adopts television audio signals and voice signal to share same transfer voice path, make television audio signals through AD converter (analog to digital converter), encoder, decoder and DA transducer (digital to analog converter) finally transfer out television field frame by loud speaker, have the production cost of reduction mobile terminal and the complexity of mobile terminal.
The utility model solves above-mentioned technical problem by following technical proposals:
The utility model provides a kind of mobile terminal, it comprises a microphone, a baseband chip and a loud speaker, this baseband chip comprises an AD converter, an encoder, a decoder and a DA transducer, this microphone is connected with this encoder by this AD converter, this loud speaker is connected with this decoder by this DA transducer, its characteristics are, a television audio signals transfers to this AD converter by an analog interface;
This AD converter be used for that this television audio signals is converted to one first digital signal and with this first digital data transmission to this encoder;
This encoder be used for to this first encoding digital signals and with this encoded first digital data transmission to this decoder;
This decoder be used for to this encoded first digital signal decode and with through this first digital data transmission of decoding to this DA transducer;
This DA transducer be used for that this first digital signal through decoding will be converted to one first analog signal and with this first analog signal transmission to this loud speaker.
Wherein, when this baseband chip is processed the voice signal of this microphone reception, this transmission of sound signals that this microphone will receive is to this AD converter, this AD converter with this voice signal be converted to one second digital signal and with this second digital data transmission to this encoder, this encoder is to this second encoding digital signals and with this encoded the second digital data transmission to a radio frequency chip, and this radio frequency chip is modulated this encoded second digital signal and modulated this second digital signal is sent.When this baseband chip is processed a three digital signal of this radio frequency chip reception, this radio frequency chip carries out demodulation and will transfer to this decoder through this three digital signal of demodulation this three digital signal that receives, this decoder to decode through this three digital signal of demodulation and with through the decoding this three digital signal transfer to this DA transducer, this DA transducer with through the decoding this three digital signal be converted to one second analog signal and with this second analog signal transmission to this loud speaker.
process during voice signal that this microphone receives and this baseband chip process the three digital signal process that this radio frequency chip receives at this above-mentioned baseband chip, this baseband chip has complete sound and amplifies, the functions such as switching, based on this function, when this baseband chip of this mobile terminal does not have with the line-in interface, this microphone on this mobile terminal just becomes unique acoustic input dephonoprojectoscope, so, the utility model adopts television audio signals and voice signal to share same transfer voice path, namely share the up link that comprises this AD converter and this encoder and comprise this loud speaker, the down link of this DA transducer and this decoder.
Preferably, this baseband chip also comprises a coded buffer, this coded buffer is connected with this encoder, and this encoder is used for this encoded first digital data transmission to this coded buffer, this coded buffer for this encoded first digital data transmission to this decoder.
Preferably, this baseband chip also comprises a decoding buffer, this decoding buffer is connected with this decoder, and this encoder is used for this encoded first digital data transmission to this buffer of decoding, this decoding buffer for this encoded first digital data transmission to this decoder.
Preferably, this baseband chip also comprises a coded buffer and a decoding buffer, this coded buffer is connected with this encoder, this decoding buffer is connected with this decoder, this encoder is used for this encoded first digital data transmission to this coded buffer, this coded buffer is used for this encoded first digital data transmission to this buffer of decoding, this decoding buffer for this encoded first digital data transmission to this decoder.
Preferably, this analog interface is connected with the difference positive pole of this baseband chip by one first block capacitor, this analog interface is one first divider resistance and the one second divider resistance ground connection by being connected successively, and this analog interface is connected with the difference negative pole of this baseband chip with one second block capacitor by this first divider resistance successively.
Preferably, the difference positive pole of this baseband chip accesses the bias voltage of this microphone successively by one the 3rd block capacitor and one first amplitude limit resistance, the difference negative pole of this baseband chip accesses the bias voltage of this microphone successively by one the 4th block capacitor, this microphone and this first amplitude limit resistance, and the bias voltage of this microphone is successively by this first amplitude limit resistance, this microphone and one second amplitude limit grounding through resistance.
Wherein, television audio signals is inputed in this process of baseband chip by analog interface, first television audio signals is converted to differential signal and transfers to again baseband chip, equally voice signal first is converted to differential signal and transfers to again baseband chip, have advantages of that all antijamming capability is strong.
Positive progressive effect of the present utility model is:
Mobile terminal of the present utility model, the shared same transfer voice of employing television audio signals and voice signal path, make television audio signals finally transfer out television field frame by loud speaker through AD converter, encoder, decoder and DA transducer, have the production cost of reduction mobile terminal and the complexity of mobile terminal.
Description of drawings
Fig. 1 is the structure chart of the mobile terminal of embodiment 1 of the present utility model.
Fig. 2 is the circuit structure diagram of the mobile terminal of embodiment 1 of the present utility model.
Fig. 3 is the flow chart of television field frame input method of the mobile terminal of embodiment 1 of the present utility model.
Fig. 4 is the structure chart of the mobile terminal of embodiment 2 of the present utility model.
Fig. 5 is the structure chart of the mobile terminal of embodiment 3 of the present utility model.
Fig. 6 is the flow chart of television field frame input method of the mobile terminal of embodiment 3 of the present utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, with the detailed description the technical solution of the utility model, but therefore the utility model is not limited among described scope of embodiments.
as shown in Figure 1, the present embodiment provides a kind of mobile terminal, it comprises a microphone 1, one baseband chip 2 and a loud speaker 3, this baseband chip 2 comprises an AD converter 21, one encoder 22, one coded buffer 23, one decoder 25, one DA transducer 26, one analog interface 27 and a radio frequency chip 28, this microphone 1 is successively by this AD converter 21, this encoder 22 is connected with this coded buffer 23, this loud speaker 3 is connected with this decoder 25 by this DA transducer 26, this radio frequency chip 28 is connected with this decoder 25 with this coded buffer 23 respectively.
One television audio signals transfers to this AD converter 21 by this analog interface 27, this AD converter 21 be used for that this television audio signals is converted to one first digital signal and with this first digital data transmission to this encoder 22;
This encoder 22 be used for to this first encoding digital signals and with this encoded first digital data transmission to this coded buffer 23;
This coded buffer 23 is used for this encoded first digital data transmission to this decoder 25;
This decoder 25 be used for to this encoded first digital signal decode and with through this first digital data transmission of decoding to this DA transducer 26;
This DA transducer 26 be used for that this first digital signal through decoding will be converted to one first analog signal and with this first analog signal transmission to this loud speaker 3.
With reference to shown in Figure 2, it is the circuit structure diagram of the mobile terminal of the present embodiment, and the present embodiment is described in detail this mobile terminal in conjunction with the structure of above-mentioned mobile terminal and the circuit structure diagram of Fig. 2:
As shown in Figure 2, this mobile terminal comprises one first difference channel and one second difference channel, this first difference channel comprises one first block capacitor C1, one second block capacitor C2, one first divider resistance R1 and one second divider resistance R2, and this second difference channel comprises one the 3rd block capacitor C3, one the 4th block capacitor C4, one first amplitude limit resistance R 3 and one second amplitude limit resistance R 4.
Wherein, this analog interface 27 is connected with the difference positive pole of this baseband chip 2 by this first block capacitor C1, this analog interface 27 is this first divider resistance R1 and this second divider resistance R2 ground connection by being connected successively, and this analog interface 27 is connected with the difference negative pole of this baseband chip 2 with this second block capacitor C2 by this first divider resistance R1 successively.
The difference positive pole of this baseband chip 2 accesses the bias voltage of these microphones 1 successively by the 3rd block capacitor C3 and this first amplitude limit resistance R 3, the difference negative pole of this baseband chip 2 accesses the bias voltage of these microphones 1 successively by the 4th block capacitor C4, this microphone 1 and this first amplitude limit resistance R 3, and the bias voltage of this microphone 1 is successively by this first amplitude limit resistance R 3, this microphone 1 and this second amplitude limit resistance R 4 ground connection.
when this analog interface 27 receives this television audio signals, by this first difference channel, this television audio signals is converted to one first differential signal, with this first differential signal by this AD converter 21 be converted to this first digital signal and with this first digital data transmission to this encoder 22, 22 pairs of these the first encoding digital signals of this encoder and with this encoded first digital data transmission to this coded buffer 23, this coded buffer 23 with this encoded first digital data transmission to this decoder 25, 25 pairs of these encoded first digital signals of this decoder decode and with through the decoding this first digital data transmission to this DA transducer 26, this DA transducer 26 with through the decoding this first digital signal be converted to this first analog signal and with this first analog signal transmission to this loud speaker 3.
when this microphone 1 receives a voice signal, by this second difference channel, this voice signal is converted to one second differential signal, with this second differential signal by this AD converter 21 be converted to one second digital signal and with this second digital data transmission to this encoder 22, 22 pairs of these the second encoding digital signals of this encoder and with this encoded second digital data transmission to this coded buffer 23, this coded buffer 23 with this encoded second digital data transmission to this radio frequency chip 28, 28 pairs of these encoded second digital signals of this radio frequency chip are modulated and modulated this second digital signal are sent.
Clearer for the operation that makes this mobile terminal, this mobile terminal is according to the television field frame input method operation of Fig. 3, and this television field frame input method comprises the following steps:
as shown in Figure 4, the mobile terminal that the present embodiment provides does not comprise this coded buffer 23 in embodiment 1, other building block of this mobile terminal is identical with embodiment 1, in addition, this mobile terminal also comprises a decoding buffer 24, this microphone 1 is connected with this encoder 22 by this AD converter 21, this loud speaker 3 is successively by this DA transducer 26, this decoder 25 is connected with this decoding buffer 24, this radio frequency chip 28 is connected with this decoding buffer 24 with this encoder 22 respectively, this decoding buffer 24 is used for will be through this first digital data transmission of this encoder 22 codings to this decoder 25.
The television field frame input method of this mobile terminal of the present embodiment is compared with the television field frame input method in embodiment 1, except step 103 and step 104 different, other step is all identical with television field frame input method in embodiment 1.The step 103 of the present embodiment ' and step 104 ' replaces step 103 and the step 104 in embodiment 1, step 103 ' and step 104 ' be:
Step 103 ', this encoder with this encoded first digital data transmission to this buffer of decoding;
Step 104 ', this decoding buffer with this encoded first digital data transmission to this decoder.
as shown in Figure 5, the mobile terminal of the present embodiment comprises all parts that this mobile terminal in embodiment 1 and embodiment 2 comprises, namely this mobile terminal comprises a microphone 1, one baseband chip 2 and a loud speaker 3, this baseband chip comprises an AD converter 21, one encoder 22, one coded buffer 23, one decoding buffer 24, one decoder 25, one DA transducer 26, one analog interface 27 and a radio frequency chip 28, this microphone 1 is successively by this AD converter 21, this encoder 22 is connected with this coded buffer 23, this loud speaker 3 is successively by this DA transducer 26, this decoder 25 is connected with this decoding buffer 24, this radio frequency chip 28 is connected with this decoding buffer 24 with this coded buffer 23 respectively.
when this analog interface 27 receives this television audio signals, by this first difference channel, this television audio signals is converted to one first differential signal, with this first differential signal by this AD converter 21 be converted to this first digital signal and with this first digital data transmission to this encoder 22, 22 pairs of these the first encoding digital signals of this encoder and with this encoded first digital data transmission to this coded buffer 23, this coded buffer 23 with this encoded first digital data transmission to this decoding buffer 24, this the decoding buffer 24 with this encoded first digital data transmission to this decoder 25, 25 pairs of these encoded first digital signals of this decoder decode and with through the decoding this first digital data transmission to this DA transducer 26, this DA transducer 26 with through the decoding this first digital signal be converted to this first analog signal and with this first analog signal transmission to this loud speaker 3.
when this microphone 1 receives a voice signal, by this second difference channel, this voice signal is converted to one second differential signal, with this second differential signal by this AD converter 21 be converted to one second digital signal and with this second digital data transmission to this encoder 22, 22 pairs of these the second encoding digital signals of this encoder and with this encoded second digital data transmission to this coded buffer 23, this coded buffer 23 with this encoded second digital data transmission to this radio frequency chip 28, 28 pairs of these encoded second digital signals of this radio frequency chip are modulated and modulated this second digital signal are sent.
This mobile terminal is according to the television field frame input method operation of Fig. 6, and this television field frame input method comprises the following steps:
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is limited by appended claims.Those skilled in the art can make various changes or modifications to these execution modes under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes and modification all fall into protection range of the present utility model.
Claims (7)
1. mobile terminal, it comprises a microphone, a baseband chip and a loud speaker, this baseband chip comprises an AD converter, an encoder, a decoder and a DA transducer, this microphone is connected with this encoder by this AD converter, this loud speaker is connected with this decoder by this DA transducer, it is characterized in that, a television audio signals transfers to this AD converter by an analog interface;
This AD converter be used for that this television audio signals is converted to one first digital signal and with this first digital data transmission to this encoder;
This encoder be used for to this first encoding digital signals and with this encoded first digital data transmission to this decoder;
This decoder be used for to this encoded first digital signal decode and with through this first digital data transmission of decoding to this DA transducer;
This DA transducer be used for that this first digital signal through decoding will be converted to one first analog signal and with this first analog signal transmission to this loud speaker.
2. mobile terminal as claimed in claim 1, it is characterized in that, this baseband chip also comprises a coded buffer, this coded buffer is connected with this encoder, this encoder is used for this encoded first digital data transmission to this coded buffer, this coded buffer for this encoded first digital data transmission to this decoder.
3. mobile terminal as claimed in claim 1, it is characterized in that, this baseband chip also comprises a decoding buffer, this decoding buffer is connected with this decoder, this encoder is used for this encoded first digital data transmission to this buffer of decoding, this decoding buffer for this encoded first digital data transmission to this decoder.
4. mobile terminal as claimed in claim 1, it is characterized in that, this baseband chip also comprises a coded buffer and a decoding buffer, this coded buffer is connected with this encoder, this decoding buffer is connected with this decoder, this encoder is used for this encoded first digital data transmission to this coded buffer, this coded buffer is used for this encoded first digital data transmission to this buffer of decoding, this decoding buffer for this encoded first digital data transmission to this decoder.
5. mobile terminal as claimed in claim 1, is characterized in that, this mobile terminal also comprises a radio frequency chip, and this radio frequency chip is connected with this decoder with this encoder respectively;
The transmission of sound signals that this microphone is used for receiving is to this AD converter;
This AD converter be used for that this voice signal is converted to one second digital signal and with this second digital data transmission to this encoder;
This encoder be used for to this second encoding digital signals and with this encoded second digital data transmission to this radio frequency chip;
This radio frequency chip is used for this encoded second digital signal is modulated and modulated this second digital signal is sent;
This radio frequency chip also is used for a three digital signal that receives is carried out demodulation and will transfer to this decoder through this three digital signal of demodulation,
This decoder also be used for to decode through this three digital signal of demodulation and this three digital signal through decoding will be converted to one second analog signal and with this second analog signal transmission to this DA transducer;
This DA transducer also is used for and will transfers to this loud speaker through this three digital signal of decoding.
6. mobile terminal as claimed in claim 1, it is characterized in that, this analog interface is connected with the difference positive pole of this baseband chip by one first block capacitor, this analog interface is one first divider resistance and the one second divider resistance ground connection by being connected successively, and this analog interface is connected with the difference negative pole of this baseband chip with one second block capacitor by this first divider resistance successively.
7. mobile terminal as claimed in claim 1, it is characterized in that, the difference positive pole of this baseband chip accesses the bias voltage of this microphone successively by one the 3rd block capacitor and one first amplitude limit resistance, the difference negative pole of this baseband chip accesses the bias voltage of this microphone successively by one the 4th block capacitor, this microphone and this first amplitude limit resistance, and the bias voltage of this microphone is successively by this first amplitude limit resistance, this microphone and one second amplitude limit grounding through resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668665 CN203014945U (en) | 2012-12-06 | 2012-12-06 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668665 CN203014945U (en) | 2012-12-06 | 2012-12-06 | Mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014945U true CN203014945U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220668665 Expired - Fee Related CN203014945U (en) | 2012-12-06 | 2012-12-06 | Mobile terminal |
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| Country | Link |
|---|---|
| CN (1) | CN203014945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888583A (en) * | 2012-12-06 | 2014-06-25 | 联美新视信息科技（上海）有限公司 | Mobile terminal and television accompanying sound input method |
| CN106098054A (en) * | 2016-06-13 | 2016-11-09 | 惠州Tcl移动通信有限公司 | The defecator of speaker noise and method in a kind of speech recognition |
-
2012
- 2012-12-06 CN CN 201220668665 patent/CN203014945U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888583A (en) * | 2012-12-06 | 2014-06-25 | 联美新视信息科技（上海）有限公司 | Mobile terminal and television accompanying sound input method |
| CN106098054A (en) * | 2016-06-13 | 2016-11-09 | 惠州Tcl移动通信有限公司 | The defecator of speaker noise and method in a kind of speech recognition |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20141206 |
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| EXPY | Termination of patent right or utility model |