CN101060350A - A double-mode communication terminal - Google Patents
A double-mode communication terminal Download PDFInfo
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- CN101060350A CN101060350A CNA2007101115303A CN200710111530A CN101060350A CN 101060350 A CN101060350 A CN 101060350A CN A2007101115303 A CNA2007101115303 A CN A2007101115303A CN 200710111530 A CN200710111530 A CN 200710111530A CN 101060350 A CN101060350 A CN 101060350A
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Abstract
The disclosed dual-mode communication terminal comprises: a first communication module, a second communication module, an audio amplifying module receiving and amplifying signal, a loud speaker conversing signal into sound wave, a switch module with one end connected both output ends of two communication modules and another end connected input end of the amplifying module, wherein the switch module detects states of two communication modules, and accesses the working communication module with the amplifying module. This invention introduces high quality communication, simplifies circuit, and reduces cost.
Description
Technical field
The present invention relates to electronic communication terminal technology field, relate in particular to a kind of double-mode communication terminal with hands-free voice call function.
Background technology
At present, along with the fast development of the communication technology, the user is more and more higher to the requirement of communication terminal (for example communication terminal).Wherein, hand-free function has become the necessary function of the communication terminal that is used for voice call.Described hand-free function utilizes loud speaker that the speech play that receives is come out exactly when conversing, thereby needn't be again with listening microphone to listen to voice.Hand-free function can exempt the communication terminal radiation to human body especially to the injury of human brain, flexible and convenient to use.
For the frequent day by day double-mode communication terminal of present use, hand-free function more can play the effect of making something perfect even more perfect, and for example the user can utilize double-mode communication terminal to receive calls more easily.Double-mode communication terminal can be operated under two network schemers exactly, for example the communication terminal of global system for mobile communications (GSM) network and code division multiple access (CDMA) network.Operated by rotary motion has two communication modules in the double-mode communication terminal, is respectively applied under different network schemers to communicate.
At present, the technology of realization hand-free function mainly comprises following two kinds on double-mode communication terminal:
Prior art one: realize hand-free function by the method that increases the voice-frequency channel gain.
Described prior art one does not need newly-increased circuit, realizes fairly simple.But following two shortcomings are arranged:
(1) volume is less, and the user listens to very painstaking, does not reach hands-free requirement; (2) adjusting range of the audio frequency separately difference of two communication modules in the double-mode communication terminal, hands-free playback difference is big.
Prior art two: on two communication modules, connect a cover audio frequency separately and amplify and speaker circuit, when one of them communication module work, utilize connected audio frequency to amplify and speaker circuit broadcast voice, realize hand-free function.
The major defect of described prior art two is: the hardware circuit complexity, the system cost height increases the distributing difficulty simultaneously, so the accommodation of this kind scheme is less, only is used in the occasion not high to volume requirement, can not be used for handheld terminal.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of double-mode communication terminal, when the realization high-quality is conversed hands-free playback, simplifies hardware circuit design, reduces equipment distributing difficulty, reduces cost.
In order to realize the foregoing invention purpose, main technical schemes of the present invention is:
A kind of double-mode communication terminal comprises first communication module and second communication module, also comprises:
One audio frequency amplification module is used for received audio signal, carries out processing and amplifying, and the output amplifying signal is given loudspeaker module;
One loudspeaker module is used to receive the signal from described audio frequency amplification module, converts sound wave to;
All die change pieces, one end is connected with the audio output of described first communication module and the audio output of described second communication module, the other end is connected with the input of described audio frequency amplification module, be used to detect the state of described first communication module and described second communication module, and will switch to path between the audio output of communication module in running order in described first communication module and the described second communication module and the described audio frequency amplifier input.
Preferably, the control end of described handover module is connected with the master control module of described double-mode communication terminal, be used to detect the switch selection signal of master control module, judge that according to this switch selection signal which person in described first communication module and the described second communication module is in running order described first communication module and described second communication module.
Preferably, the control end of described handover module is connected with the primary path of described first communication module and the primary path of described second communication module respectively, judges that by whether information flow is arranged in the primary path that detects described first communication module and primary path and second communication module which person in described first communication module and the second communication module is in running order.
Preferably, described audio frequency amplification module specifically comprises: audio frequency amplifier and gain control unit; Wherein, described gain control unit is connected between the output and gain control end of described audio frequency amplifier, comprise signal gathering unit, comparing unit and control unit, wherein signal gathering unit is used to gather the signal of audio frequency amplifier output, acquired signal is input to comparing unit, comparing unit compares the intensity of described acquired signal with the signal strength range of presetting, if the intensity of acquired signal is greater than default maximum signal, then comparing unit triggers the gain that described control unit reduces described audio frequency amplifier; If the intensity of acquired signal is less than default minimum signal strength, then comparing unit triggers the gain that described control unit increases described audio frequency amplifier; If the intensity of acquired signal is in default signal strength range, then comparing unit does not trigger described control unit.
Preferably, this double-mode communication terminal further comprises sound volume regulation unit, be connected with the control unit in the described audio frequency amplification module, be used to receive the volume conditioning signal of user's input, judge the type of volume conditioning signal, then trigger the gain that described control unit increases described audio frequency amplifier if increase the signal of volume; Then trigger the gain that described control unit reduces described audio frequency amplifier if reduce the signal of volume.
Preferably, the signal strength signal intensity of the impedance of described loudspeaker module and described default audio frequency amplifier output is complementary.
Preferably, described audio frequency amplification module further comprises: the automatic switch unit, be used to detect the extraneous signal of importing, and if detect hands-free signal, then the audio frequency amplification module is switched to operating state; If detect call ending signal, then the audio frequency amplification module is switched to closed condition
Because the present invention has adopted special-purpose audio frequency amplification module and loudspeaker module in double-mode communication terminal, can realize the hands-free player function of conversation of double-mode communication terminal, and playing quality height, the present invention has simultaneously also adopted handover module that the audio signal of two communication module outputs in the double-mode communication terminal is switched according to the operating state of communication module, in running order communication module audio output is connected with the input of described audio frequency amplification module, therefore the present invention adopts once overlapping audio frequency amplification module and loudspeaker module and can realize the hands-free player function of conversation of two communication modules, simplified hardware circuit design, reduce the difficulty of equipment wiring and layout, reduced production cost.
The different characteristics of the adjusting range of audio frequency separately at two communication modules in the double-mode communication terminal, comprise gain control unit in the audio frequency amplification module of the present invention, by the intensity of the signal of audio frequency amplification module output and default signal strength signal intensity are compared, automatically regulate the gain of audio frequency amplifier according to comparative result, therefore, no matter the audiorange of two communication modules has great gap, the audio signal strength of final output but remains in the predetermined scope, overcome because the bigger problem of volume difference on effect that the adjusting range of the audio frequency separately difference of two communication modules causes, no matter make which communication module is in running order, the sound effect of putting outward can both reach predetermined requirement automatically, and does not almost have voice difference.
Volume control of the present invention also is different from other method in mobile communication terminal field, in existing mobile communication terminal field, volume controls by central processing unit (CPU), and the present invention directly is connected sound volume regulation unit with control unit in the audio frequency amplification module, directly control the size of output volume, therefore the present invention has reduced the taking of CPU computational resource, and has improved the treatment effeciency of CPU.
Because the present invention also comprises the automatic switch unit, can detect hand-free function and whether open, if open then the audio frequency amplification module is switched to operating state, if do not open, then the audio frequency amplification module is switched to closed condition, thereby can further reduce power consumption.
Description of drawings
Fig. 1 is a kind of structure chart of double-mode communication terminal of the present invention;
Fig. 2 is the another kind of structure chart of double-mode communication terminal of the present invention;
Fig. 3 is a kind of structure chart of audio frequency amplification module of the present invention;
Fig. 4 is the another kind of structure chart of audio frequency amplification module of the present invention.
Embodiment
Below by specific embodiments and the drawings the present invention is described in further details.
Fig. 1 is a kind of structure chart of double-mode communication terminal of the present invention.Referring to Fig. 1, double-mode communication terminal of the present invention comprises: comprise first communication module 101, second communication module 102, handover module 103, audio frequency amplification module 104 and loudspeaker module 105.Wherein:
The control end 106 of described handover module 103 can be connected with the master control module of described double-mode communication terminal, be used to detect the switch selection signal of master control module, judge that according to this switch selection signal described first communication module 101 and described second communication module 102 which person among both is in running order described first communication module 101 and described second communication module 102.Owing to double-mode communication terminal communication module with acquiescence after startup, be generally main communication module, be set to operating state, so generally after double-mode communication terminal starts, described switch selection signal is initialized to the switch selection signal that the switches default communication module enters operating state.
In order to make handover module 103 detect the state of described first communication module 101 and described second communication module 102, the present invention can also be connected the control end 106 of handover module 103 respectively with the primary path of first communication module 101 and the primary path of second communication module 102, be used to detect first communication module 101 and whether second communication module 102 is in running order.Fig. 2 is the another kind of structure chart of double-mode communication terminal of the present invention.Referring to Fig. 2, structure shown in Figure 2 is identical substantially with structure shown in Figure 1, the difference part is, structure shown in Figure 2 is connected the control end 106 of handover module 103 respectively with the primary path end 110 of first communication module 101 and the primary path end 111 of second communication module 102, and detect first communication module 101 and second communication module 102 whether in running order, if detect the primary path of first communication module 101 information flow is arranged, judge that then first communication module 101 is in running order, switch to path between the input with the audio output 108 of first communication module 101 and described audio frequency amplifier; If detect the primary path of second communication module 102 information flow is arranged, judge that then second communication module 102 is in running order, switch to path between the input with the audio output 109 of second communication module 102 and described audio frequency amplifier.
Therefore switch unit of the present invention is satisfying on the basis of volume requirement owing to be applied on the less double-mode communication terminal of volume, and its load capacity also need satisfy the load capacity requirement of described communication module audio frequency output current.
Described audio frequency amplification module 104 is used to receive the audio signal of handover module 103 outputs, carries out processing and amplifying, and the output amplifying signal is given loudspeaker module 105.
Fig. 3 is a kind of structure chart of audio frequency amplification module 104 of the present invention.Referring to Fig. 3, described audio frequency amplification module 104 specifically comprises: audio frequency amplifier 201 and gain control unit 202; Wherein, described gain control unit 202 is connected between the output and gain control end of described audio frequency amplifier 201, comprise signal gathering unit 221, comparing unit 222 and control unit 223, wherein signal gathering unit 221 is used to gather the signal of audio frequency amplifier 201 outputs, acquired signal is input to comparing unit 222, the intensity of 222 pairs of described acquired signal of comparing unit compares with the signal strength range of presetting, if the intensity of acquired signal is greater than default maximum signal, then comparing unit 222 trigger control unit 223 reduce the gain of described audio frequency amplifier 201; If the intensity of acquired signal is less than default minimum signal strength, then comparing unit 222 trigger control unit 223 gain that increases described audio frequency amplifier 201; If the intensity of acquired signal in default signal strength range, comparing unit 222 trigger control unit 223 not then.The bearing capacity of the characteristic of described maximum signal and minimum signal strength and double-mode communication terminal and loudspeaker module 105 preestablishes.
Fig. 4 is the another kind of structure chart of audio frequency amplification module of the present invention.Structure shown in Figure 4 and structure shown in Figure 3 are basic identical, and the difference part is, can further include sound volume regulation unit 401 and/or automatic switch unit 402 in the structure shown in Figure 4.
Described sound volume regulation unit 401 can be that the volume on the double-mode communication terminal is regulated button or knob, or the logotype that is used to regulate volume of the corresponding demonstration on the double-mode communication terminal electronic touch screen, according to the user operational motion of these buttons or logotype is judged the volume conditioning signal.Described sound volume regulation unit 401 is connected with control unit 223 in the described audio frequency amplification module 104, be used to receive the volume conditioning signal of user's input, judge the type of volume conditioning signal, then trigger the gain that described control unit 223 increases described audio frequency amplifier 201 if increase the signal of volume; Then trigger the gain that described control unit 223 reduces described audio frequency amplifier 201 if reduce the signal of volume.
Described automatic switch unit 402 is connected with the master control module of double-mode communication terminal, be connected with the interface of master control module specifically with the external world, be used to detect the signal 107 of extraneous input, if detect hands-free signal, then with the power turn-on of described audio frequency amplification module 104, thereby audio frequency amplification module 104 is switched to operating state; If detect call ending signal,, thereby audio frequency amplification module 104 is switched to closed condition then with the power remove of described audio frequency amplification module 104.Described automatic switch unit 402 is connected with the supply line of audio frequency amplification module 104 and gets final product, because stating the supply line of audio frequency amplification module 104 can be by multiple structure, therefore do not provide the concrete supply line of audio frequency amplification module 104 among Fig. 4, specifically do not provide automatic switch unit 402 yet and how to connect described supply line.Persons skilled in the art can decide to know how to power and how to connect automatic switch unit 402 and described supply line in its sole discretion by the description of this specification.
Described hands-free signal and call ending signal can be redefined for certain key assignments on the double-mode communication terminal respectively, when pressing the key of hands-free correspondence, send hands-free signal, when press-to-talk finishes corresponding keys, send call ending signal.
Described loudspeaker module 105 is used to receive the signal from described audio amplifier circuit, converts thereof into sound wave.The present invention need select the impedance of described loudspeaker module 105, makes the impedance of this loudspeaker module 105 and the signal strength signal intensity of described default audio frequency amplifier 201 outputs be complementary.Otherwise the sound wave distortion that too small impedance may cause loudspeaker module 105 to send, thereby influence speech quality.
Other unit as for double-mode communication terminal, owing to be not emphasis of the present invention, therefore do not provide in detail in this manual, but double-mode communication terminal of the present invention can have all hardware unit and the software unit of present double-mode communication terminal, and can finish all functions that present double-mode communication terminal has.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1, a kind of double-mode communication terminal comprises first communication module and second communication module, it is characterized in that, also comprises:
One audio frequency amplification module is used for received audio signal, carries out processing and amplifying, and the output amplifying signal is given loudspeaker module;
One loudspeaker module is used to receive the signal from described audio frequency amplification module, converts sound wave to;
All die change pieces, one end is connected with the audio output of described first communication module and the audio output of described second communication module, the other end is connected with the input of described audio frequency amplification module, be used to detect the state of described first communication module and described second communication module, and will switch to path between the audio output of communication module in running order in described first communication module and the described second communication module and the described audio frequency amplifier input.
2, double-mode communication terminal according to claim 1, it is characterized in that, the control end of described handover module is connected with the master control module of described double-mode communication terminal, be used to detect the switch selection signal of master control module, judge that according to this switch selection signal which person in described first communication module and the described second communication module is in running order described first communication module and described second communication module.
3, double-mode communication terminal according to claim 1, it is characterized in that, the control end of described handover module is connected with the primary path of described first communication module and the primary path of described second communication module respectively, judges that by whether information flow is arranged in the primary path that detects described first communication module and primary path and second communication module which person in described first communication module and the second communication module is in running order.
4, double-mode communication terminal according to claim 1 is characterized in that, described audio frequency amplification module specifically comprises: audio frequency amplifier and gain control unit; Wherein, described gain control unit is connected between the output and gain control end of described audio frequency amplifier, comprise signal gathering unit, comparing unit and control unit, wherein signal gathering unit is used to gather the signal of audio frequency amplifier output, acquired signal is input to comparing unit, comparing unit compares the intensity of described acquired signal with the signal strength range of presetting, if the intensity of acquired signal is greater than default maximum signal, then comparing unit triggers the gain that described control unit reduces described audio frequency amplifier; If the intensity of acquired signal is less than default minimum signal strength, then comparing unit triggers the gain that described control unit increases described audio frequency amplifier; If the intensity of acquired signal is in default signal strength range, then comparing unit does not trigger described control unit.
5, double-mode communication terminal according to claim 4, it is characterized in that, this double-mode communication terminal further comprises sound volume regulation unit, be connected with the control unit in the described audio frequency amplification module, be used to receive the volume conditioning signal of user's input, judge the type of volume conditioning signal, then trigger the gain that described control unit increases described audio frequency amplifier if increase the signal of volume; Then trigger the gain that described control unit reduces described audio frequency amplifier if reduce the signal of volume.
6, double-mode communication terminal according to claim 4 is characterized in that, the signal strength signal intensity of the impedance of described loudspeaker module and described default audio frequency amplifier output is complementary.
7, double-mode communication terminal according to claim 1, it is characterized in that described audio frequency amplification module further comprises: the automatic switch unit is used to detect the extraneous signal of importing, if detect hands-free signal, then the audio frequency amplification module is switched to operating state; If detect call ending signal, then the audio frequency amplification module is switched to closed condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101115303A CN101060350A (en) | 2007-06-19 | 2007-06-19 | A double-mode communication terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101115303A CN101060350A (en) | 2007-06-19 | 2007-06-19 | A double-mode communication terminal |
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| CN101060350A true CN101060350A (en) | 2007-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101115303A Pending CN101060350A (en) | 2007-06-19 | 2007-06-19 | A double-mode communication terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107794A (en) * | 2011-11-04 | 2013-05-15 | 太阳诱电株式会社 | Duplexer, filter and communication module |
| CN105450871A (en) * | 2015-12-03 | 2016-03-30 | 广东欧珀移动通信有限公司 | Call mode switching method and device for mobile terminal |
| CN111010652A (en) * | 2019-12-19 | 2020-04-14 | 杭州叙简科技股份有限公司 | Audio signal double-link backup method |
| CN112910495A (en) * | 2019-11-19 | 2021-06-04 | RealMe重庆移动通信有限公司 | Communication module selection method and device based on terminal equipment |
-
2007
- 2007-06-19 CN CNA2007101115303A patent/CN101060350A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107794A (en) * | 2011-11-04 | 2013-05-15 | 太阳诱电株式会社 | Duplexer, filter and communication module |
| CN103107794B (en) * | 2011-11-04 | 2016-03-23 | 太阳诱电株式会社 | Duplexer, filter and communication module |
| CN105450871A (en) * | 2015-12-03 | 2016-03-30 | 广东欧珀移动通信有限公司 | Call mode switching method and device for mobile terminal |
| CN112910495A (en) * | 2019-11-19 | 2021-06-04 | RealMe重庆移动通信有限公司 | Communication module selection method and device based on terminal equipment |
| CN111010652A (en) * | 2019-12-19 | 2020-04-14 | 杭州叙简科技股份有限公司 | Audio signal double-link backup method |
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Open date: 20071024 |