CN201256439Y - Mobile implementing audio switching of mobile phone television - Google Patents
Mobile implementing audio switching of mobile phone television Download PDFInfo
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- CN201256439Y CN201256439Y CNU2008201159496U CN200820115949U CN201256439Y CN 201256439 Y CN201256439 Y CN 201256439Y CN U2008201159496 U CNU2008201159496 U CN U2008201159496U CN 200820115949 U CN200820115949 U CN 200820115949U CN 201256439 Y CN201256439 Y CN 201256439Y
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Abstract
A handset capable of realizing the switching between handset audio and television audio comprises a television signal processing circuit and a talking signal processing circuit which work independently, wherein the television signal processing circuit comprises a television receiving module, a television demodulating chip and an application processing chip, which are connected in turn, the talking signal processing circuit comprises a talking signal receiving module, a talking signal processing module and a baseband processing chip, which are connected in turn, the baseband processing chip accomplishes the output of talking signals being processed, and a handset also comprises an audio coding-decoding machine which is respectively connected with the application processing chip and the baseband processing chip. When talking signals output by the baseband processing chip are received, the talking signals are processed, and the processing of television audio signals sent out by the application processing chip is stopped, when no talking signals are received, the television audio signals sent out by the application processing chip are processed. With the utilization of the technique, an intelligent handset can realize the switching between the handset audio and the television audio via reasonable hardware layout, thereby reducing the interference between both.
Description
Technical field
Present technique relates to a kind of realization field of mobile phone, relates in particular to a kind of mobile phone of realizing that the mobile TV audio frequency switches.
Background technology
The fast development of mobile communication is effectively promoting mobile phone and is developing to intellectuality, miniaturization and high-performance direction.
Up to the present, mobile intelligent is the dominant direction of mobile phone development, and smart mobile phone has also possessed many additional functions except the function that possesses regular handset, as: high speed data transfer, web page browsing, GPS (global positioning system), mobile TV etc.Wherein, mobile phone TV services have two kinds of implementations: the cellular radio that a kind of mobile operator of being based on provides, realize the multileaving of Streaming Media; Another kind is the DMB (DMB) that utilizes on the digital audio broadcasting frequency spectrum, realizes the multileaving of Streaming Media.Along with determining of mobile TV standard, TV watching function and mobile phone combined to become a reality.
How to realize on a mobile phone that mobile TV is watched and the audio frequency of normal talking function switches, and can allow the user use more easily, this is the difficult problem that each big mobile-phone manufacturers faces.Audio frequency switches the following several mode that roughly comprises in the market:
1. a DSP (Digital Signal Processing) chip is linked to each other with two-way DAC (digital to analog converter), two-way DAC links to each other with earphone and receiver by switch respectively, thereby realizes the switching of audio signal between earphone and the receiver;
2. an audio frequency amplifier is linked to each other with a selector switch, plug-in receiver of selector switch and outside terminal carry out audio frequency by selector switch and switch;
3. the audio frequency of realizing bimodulus or multi mode terminal switches then adding one switch in the two independent control circuit, one end of this switch links to each other with other standards (as PHS (personal handyphone system), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) etc.) module with gsm module, the other end links to each other with transmitter (MIC), realizes that by the switch selection path audio frequency between each standard switches;
4. realize that the audio frequency switching of call function simultaneously of bimodulus or multi mode terminal then need add mixer in circuit; with main control module the audio signal of different systems is delivered to mixer and finish audio mixing; audio frequency is output as two-way standard audio frequency, reaches the function of call function audio frequency switching simultaneously.
The utility model content
The technical problems to be solved in the utility model provides a kind of mobile phone of realizing that the mobile TV audio frequency switches, and the audio frequency that incoming call is answered when televiewing to be implemented in switches, and makes the mobile phone can also can normal talking under situation about televiewing.
For addressing the above problem, the invention provides a kind of mobile phone of realizing that the mobile TV audio frequency switches, the processing television signals circuit and the conversation signal process circuit that comprise separate work, comprise TV-set receiving module, the TV demodulation chip that links to each other successively in the described processing television signals circuit and use process chip, comprise successively the conversation signal reception and processing module and the baseband processing chip that link to each other in the described conversation signal process circuit, described baseband processing chip is exported after finishing processing to conversation signal;
Also comprise an audio codec in the described mobile phone, it links to each other with described baseband processing chip with described application process chip respectively; Behind the described conversation signal that receives described baseband processing chip output, this signal is handled, and stopped to handle the television audio signals of using the process chip transmission; When not receiving described conversation signal, handle the television audio signals that described application process chip sends.
Further, above-mentioned mobile phone also can have following feature:
Comprise a selector, a circuit-switched data bus and audio coding decoding module in the audio codec;
Comprise two inputs and an output in the described selector; Described output links to each other with the input of data/address bus; First input end links to each other with the output of described application process chip, and second input links to each other with the output of described baseband processing chip; Receive the described conversation signal of described baseband processing chip output when described second input after, described baseband processing chip of conducting and described data/address bus; When described second input does not receive that described conversation signal and described first input end receive described television audio signals, described application process chip of conducting and described data/address bus;
The input of described audio coding decoding module links to each other with the output of described data wire, and it is used to handle the signal by described data/address bus input.
Further, above-mentioned mobile phone also can have following feature:
When described second input does not receive that described conversation signal and described first input end do not receive described television audio signals yet, described data/address bus and the conducting of described application process chip or with described baseband processing chip conducting.
Further, above-mentioned mobile phone also can have following feature:
Also comprise loud speaker, receiver and transmitter in the described mobile phone, they link to each other with the output of described audio coding decoding module respectively.
The use of present technique can make intelligentized mobile phone by the switching between rational hardware circuit layout realization television audio and the handset audio, thereby reduces the interference between the Digital Video Broadcasting Handheld audio frequency.The utility model can not increase under the form of hardware configuration, by two independently the audio frequency receiving lines control the switching of finishing between television module and the gsm module audio frequency, guarantee the use of mobile TV and normal talking.
Description of drawings
Fig. 1 realizes the handset structure figure that handset audio switches in the embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples the technical solution of the utility model is described in detail.
As shown in Figure 1, comprise processing television signals circuit and conversation signal process circuit in the utility model.Comprise in the processing television signals circuit successively and to connect: the 1-TV-set receiving module, 2-TV demodulation chip, 3-uses process chip.After television audio signals is received by TV-set receiving module, finish demodulation by the TV demodulation chip, deliver to the application process chip and finish audio data collecting and encoding and decoding, finally export audio codec (finish and amplify and final output selection) back to and export from SPEAKER; Comprise successively in the conversation signal process circuit: 5-conversation signal (can but be not limited to the GSM signal) reception and processing module and 6-baseband processing chip.Conversation signal is by conversation signal reception and processing module received signal and finish the signal demodulation, deliver to the baseband processor chip and finish audio coding decoding, finally export audio codec (finish and amplify and final output selection) back to from SPEAKER or RECEIVER output.
The two-way circuit uses independently receiver module, demodulation chip and processing (audio data collecting and encoding and decoding) chip respectively, but a shared 4-audio codec.The output of this audio codec links to each other with 7-loud speaker (Speaker), 8-receiver (Receiver) and 9-transmitter (MIC) respectively.Therefore, the reception of two paths of signals and processing are independent mutually, control realization by audio codec at last and finally are output as SPEAKER or RECEIVER and MIC.
Have only a circuit-switched data bus in the audio codec, use process chip and link to each other with this data/address bus by a first selector, and then by this data/address bus signal is imported in this audio codec and to handle with baseband processing chip.Also comprise an audio coding decoding module in this audio codec, comprise DSP, DAC and second selector in this module.During TV-set receiving module work, first selector is selected the also television signal processing circuit conducting, and data/address bus TV transmission audio signal is handled to DSP and given above-mentioned second selector by DAC, selects SPEAKER output television audio by second selector.
Comprise two inputs and an output in the first selector; This output links to each other with the input of data/address bus; First input end links to each other with the output of using process chip, and input links to each other with the output of baseband processing chip; Receive the conversation signal of baseband processing chip output when second input after, conducting baseband processing chip and data/address bus; When second input did not receive that conversation signal and first input end receive described television audio signals, process chip and data/address bus were used in conducting; When second input does not receive that conversation signal and first input end do not receive television audio signals yet, can select to switch or do not switch described application process chip of i.e. conducting and described data/address bus
On specific implementation, when cell phone incoming call, the conversation signal process circuit is in running order, and baseband processing chip is finished the encoding and decoding of audio frequency and handled back output.When first selector detects baseband processing chip after it has sent signal, because conversation signal priority is higher, therefore can be (at this moment by first selector conducting conversation signal process circuit, the processing television signals circuit disconnects), data/address bus was used to transmit conversation signal and handled the back by DAC to DSP this moment, and output SPEAKER is corresponding bell sound; After connecting phone, DAC control SPEAKER disconnects, and switches to RECEIVER and MIC mode of operation, guarantees normal talking.Behind end of conversation, first selector conducting processing television signals again circuit, then data/address bus can continue the TV transmission audio signal.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (3)
1, a kind of mobile phone of realizing that the mobile TV audio frequency switches, the processing television signals circuit and the conversation signal process circuit that comprise separate work, comprise TV-set receiving module, the TV demodulation chip that links to each other successively in the described processing television signals circuit and use process chip, comprise successively the conversation signal reception and processing module and the baseband processing chip that link to each other in the described conversation signal process circuit, described baseband processing chip is exported after finishing processing to conversation signal; It is characterized in that,
Also comprise an audio codec in the described mobile phone, it links to each other with described baseband processing chip with described application process chip respectively; Behind the described conversation signal that receives described baseband processing chip output, this signal is handled, and stopped to handle the television audio signals of using the process chip transmission; When not receiving described conversation signal, handle the television audio signals that described application process chip sends.
2, mobile phone as claimed in claim 1 is characterized in that,
Comprise a selector, a circuit-switched data bus and audio coding decoding module in the audio codec;
Comprise two inputs and an output in the described selector; Described output links to each other with the input of data/address bus; First input end links to each other with the output of described application process chip, and second input links to each other with the output of described baseband processing chip; Receive the described conversation signal of described baseband processing chip output when described second input after, described baseband processing chip of conducting and described data/address bus; When described second input does not receive that described conversation signal and described first input end receive described television audio signals, described application process chip of conducting and described data/address bus;
The input of described audio coding decoding module links to each other with the output of described data wire, and it is used to handle the signal by described data/address bus input.
3, mobile phone as claimed in claim 2 is characterized in that,
Also comprise loud speaker, receiver and transmitter in the described mobile phone, they link to each other with the output of described audio coding decoding module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201159496U CN201256439Y (en) | 2008-06-18 | 2008-06-18 | Mobile implementing audio switching of mobile phone television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201159496U CN201256439Y (en) | 2008-06-18 | 2008-06-18 | Mobile implementing audio switching of mobile phone television |
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| Publication Number | Publication Date |
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| CN201256439Y true CN201256439Y (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201159496U Expired - Fee Related CN201256439Y (en) | 2008-06-18 | 2008-06-18 | Mobile implementing audio switching of mobile phone television |
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| CN (1) | CN201256439Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103581723A (en) * | 2012-08-06 | 2014-02-12 | 联想(北京)有限公司 | Method for information processing and electronic equipment |
| CN113596771A (en) * | 2021-08-23 | 2021-11-02 | 国能包神铁路集团有限责任公司 | Locomotive wireless communication equipment and control method and device thereof |
-
2008
- 2008-06-18 CN CNU2008201159496U patent/CN201256439Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103581723A (en) * | 2012-08-06 | 2014-02-12 | 联想(北京)有限公司 | Method for information processing and electronic equipment |
| CN103581723B (en) * | 2012-08-06 | 2017-11-24 | 联想(北京)有限公司 | The method and electronic equipment of information processing |
| CN113596771A (en) * | 2021-08-23 | 2021-11-02 | 国能包神铁路集团有限责任公司 | Locomotive wireless communication equipment and control method and device thereof |
| CN113596771B (en) * | 2021-08-23 | 2023-11-17 | 国能包神铁路集团有限责任公司 | Locomotive wireless communication equipment and control method and device thereof |
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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: 20090610 Termination date: 20130618 |