CN103813231A - Method, intelligent device, system and plug for judging access signals - Google Patents
Method, intelligent device, system and plug for judging access signals Download PDFInfo
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- CN103813231A CN103813231A CN201410076950.2A CN201410076950A CN103813231A CN 103813231 A CN103813231 A CN 103813231A CN 201410076950 A CN201410076950 A CN 201410076950A CN 103813231 A CN103813231 A CN 103813231A
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Abstract
The invention relates to the technical field of electronic communication, in particular to a method, intelligent device, system and plug for judging an access signal. The method includes judging whether a received detection signal is a USB (Universal Serial Bus) power supply access signal after receiving a device access signal; if so, turning on a USB mode to achieve USB charging or data transmission; if not, judging whether the detection signal is an earphone access signal; if so, turning on an audio mode to achieve data transmission; if not, judging the detection signal as a USB non-powered access signal. According to the method, only one interface is used for both the USB mode and the audio mode of the earphone, thereby greatly reducing the size of a wearable device.
Description
Technical field
The present invention relates to communications electronics technical field, relate in particular to a kind of method, smart machine, system and plug that judges access signal.
Background technology
In current electronic product, the transmission of audio frequency and data is two substantially requisite functions, and transfer of data generally all adopts USB interface with charging in electronic product, and audio transmission adopts the audio jack of 3.5 millimeters conventionally.Be used for the four-part form headset plug of audio transmission as shown in Figure 1, four-part form headset plug comprises L channel L, R channel R, ground connection GND and Mike MIC.
But along with the development of wearable device in recent years, intelligent watch, bracelet are shown up prominently gradually.At present, these wearable devices are substantially all realized the transfer function of audio frequency and data at the USB interface with discrete and 3.5mm headset plug interface, but due to the finite volume of Waist watch type mobile phone or bracelet itself, if exist USB interface and headset plug interface will increase the volume of this class wearable device simultaneously, make wearer feel inconvenient, reduce user's experience.
Summary of the invention
The embodiment of the present invention provides a kind of method, smart machine, system and plug that judges access signal, and for reducing the volume of wearable device, the method comprises:
A method that judges access signal, described method comprises:
Receiving after equipment access signal, judging whether the detection signal receiving is USB power supply access signal, if connection USB pattern realizes charging or the transfer of data of USB; Otherwise,
Judge that according to the judgment mode setting in advance whether described detection signal is earphone access signal, realizes transfer of data if connect audio mode; Otherwise described detection signal is defined as USB and does not connect power supply access signal.
A kind of plug, described plug comprises:
First signal supply unit, for the right-channel signals under transmission of audio pattern, or the D+ signal of USB under transmission USB pattern;
Secondary signal transmission unit, for the left channel signals under transmission of audio pattern, or transmission USB
The D-signal of USB under pattern;
The 3rd signal transmission unit, for the Mike's signal under transmission of audio pattern, or the power supply signal of USB under transmission USB pattern.
A smart machine that comprises judgement access semiotic function, described smart machine comprises:
Receiving element, for receiving equipment access signal and detection signal;
Judging unit, for judging whether the detection signal receiving is USB power supply access signal; Or judge according to the judgment mode setting in advance whether described detection signal is earphone access signal;
Operating unit, in the time that the definite detection signal receiving of described judging unit is USB power supply access signal, connection USB pattern realizes charging or the transfer of data of USB; Or, in the time that described judging unit determines that the detection signal receiving is earphone access signal, connect audio mode and realize transfer of data; Or determining when described judging unit the detection signal that receives is not earphone access signal neither SB power supply access signal time, determines that described detection signal is that USB does not connect power supply access signal.
A system that judges access signal, described system comprises:
Plug, comprises first signal supply unit, secondary signal transmission unit and the 3rd signal transmission unit; Described first signal supply unit, for the right-channel signals under transmission of audio pattern, or the D+ signal of USB under transmission USB pattern; Described secondary signal transmission unit, for the left channel signals under transmission of audio pattern, or the D-signal of USB under transmission USB pattern; Described the 3rd signal transmission unit, for the Mike's signal under transmission of audio pattern, or the power supply signal of USB under transmission USB pattern;
Smart machine, comprises described receiving element, judging unit and operating unit; Described receiving element, for receiving equipment access signal and detection signal; Described judging unit, for judging whether the detection signal receiving is USB power supply access signal; Or judge according to the judgment mode setting in advance whether described detection signal is earphone access signal; Described operating unit, in the time that the definite detection signal receiving of described judging unit is USB power supply access signal, connection USB pattern realizes charging or the transfer of data of USB; Or, in the time that described judging unit determines that the detection signal receiving is earphone access signal, connect audio mode and realize transfer of data; Or determining when described judging unit the detection signal that receives is not earphone access signal neither SB power supply access signal time, determine that described detection signal is that USB does not connect power supply and connects
Enter signal.
Visible, the method that the embodiment of the present invention provides, the detection signal receiving by judgement is that USB power supply access signal or earphone access signal or USB does not connect power supply access signal, determines that the plug being inserted in smart machine is for connecting earphone or USB.When determining while being USB power supply access signal, be inserted into plug in smart machine for connecting USB, therefore connect USB pattern, realize charging or the transfer of data of USB; Be earphone access signal when determining, be inserted into plug in smart machine for connecting earphone, therefore connect audio mode and realize the transmission of voice data; Be USB while not connecing power supply access signal when determining, can determine the USB that has inserted access failure power supply.Visible the method only needs an interface to can be used for the audio mode that USB pattern also can be used for earphone, has therefore greatly reduced the volume of wearable device.
Accompanying drawing explanation
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.
Fig. 1 is four-part form headset plug structural representation in prior art;
A kind of method flow diagram that judges access signal that Fig. 2 provides for the embodiment of the present invention;
The structural representation of a kind of plug that Fig. 3 provides for the embodiment of the present invention;
The first judgement that Fig. 4 provides for the embodiment of the present invention accesses the structural representation of the smart machine of signal;
A kind of system construction drawing schematic diagram that judges access signal that Fig. 5 provides for the embodiment of the present invention.
Embodiment
In order to make those skilled in the art person understand better the technical scheme in the embodiment of the present invention, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, technical scheme in the present invention is described in further detail.
The method that the embodiment of the present invention provides, the detection signal receiving by judgement is that USB power supply access signal or earphone access signal or USB does not connect power supply access signal, determines that the plug being inserted in smart machine is for connecting earphone or USB.When determining while being USB power supply access signal, be inserted into plug in smart machine for connecting USB, therefore connect USB pattern, realize charging or the transfer of data of USB; Earphone access signal when determining, be inserted into plug in smart machine and be for
Connect earphone, therefore connect audio mode and realize the transmission of voice data; Be USB while not connecing power supply access signal when determining, can determine the USB that has inserted access failure power supply.Visible the method only needs an interface to can be used for the audio mode that USB pattern also can be used for earphone, has therefore greatly reduced the volume of wearable device.As shown in Figure 2, the method specifically comprises:
Concrete, wherein said connection USB pattern comprises:
Respectively first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line are accessed to USB pattern by control switch; Now first signal tie-in line is for accessing the D+ signal of USB; Secondary signal tie-in line is for accessing the D-signal of USB, and the 3rd signal tie-in line is for accessing the power supply signal of USB.
The described judgment mode setting in advance comprises:
On first signal tie-in line, increase resistance, gather the level value that increases the first signal tie-in line after resistance; Describedly judge that whether described detection signal is earphone access signal, realize transfer of data and comprise if connect audio mode:
In the time that described level value is 0V, described detection signal is earphone access signal, by control switch respectively by first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line accessing to audio pattern; Now first signal tie-in line is for accessing the left channel signals of headset plug; Secondary signal tie-in line is for accessing the right-channel signals of headset plug, and the 3rd signal tie-in line is for accessing Mike's signal of headset plug;
Described while judging described detection signal for earphone access signal, be defined as USB and do not connect power supply access signal and comprise:
In the time that described level value is VCC, described detection signal is that USB does not connect power supply access signal.
Concrete, after receiving described equipment access signal and at the judgment mode according to setting in advance
Judge whether described detection signal is, before earphone accesses signal, further to comprise:
Connect the enable switch on described first signal tie-in line, described resistance and described first signal tie-in line are connected.
Be introduced with specific embodiment below:
The embodiment of the present invention provides a kind of method that judges access signal, the socket of the method reusable earphone and USB, and can reduce wearable smart machine etc. has the volume of the equipment of strict demand to volume;
For the convenient socket relating in embodiments of the present invention of introducing can be earphone socket, be all multiplexing this earphone sockets of USB and earphone, due to the physical structure of earphone socket, in the time having external equipment plugged earphone socket, this earphone socket can trigger an equipment access signal to CPU;
The earphone socket that adopts a general 3.5mm in the plate level of this smart machine, the main line being connected with this earphone socket comprises first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line; The audio signal R that first signal tie-in line transmits for accessing the R channel of earphone, or the D+ signal of USB, to realize the multiplexing of R and D+; The audio signal L that secondary signal tie-in line transmits for accessing the L channel of earphone, or the D-signal of USB, to realize the multiplexing of L and D-; The 3rd signal tie-in line transmits MIC signal for the Mike who accesses earphone, or the power supply of USB, to realize power supply multiplexing of MIC and USB; Can realize the multiplexing of earphone and USB socket by first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line as seen;
There is respectively a control switch at first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line, this control switch is used for when CPU is according to after the detection signal receiving, control is to connect L or D-, or connects R or D+, or MIC or the power supply of USB;
The method specifically comprises:
Step 1, when the CPU of smart machine receives after equipment access signal, starts to judge whether detection signal is USB power supply access signal; If execution step two; Otherwise execution step three;
Step 2, connection USB pattern realizes charging or the transfer of data of USB; This concrete step comprises:
Respectively first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line are accessed to USB pattern by control switch; Now first signal tie-in line is for accessing the D+ signal of USB; Secondary signal tie-in line is for accessing the D-signal of USB, and the 3rd signal tie-in line is for accessing the power supply signal of USB.
Step 3, now CPU also needs judgement to access and do not connect the USB of power supply or accessed earphone, and concrete judgment mode is: judge according to the judgment mode setting in advance whether described detection signal is earphone
Access signal; If execution step four, otherwise execution step five;
Concrete, the judgment mode setting in advance is:
On first signal tie-in line, increase a pull-up resistor, the large I of this resistance, according to actual value, is preferably got the resistance of 10K to tens K, and in the present embodiment, value is 10K; Gather the level value that increases the first signal tie-in line after resistance;
In the time recording this level value and be 0V, this detection signal is earphone access signal, and what determine access is earphone, execution step four;
Step 4, by control switch respectively by first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line accessing to audio pattern; Now first signal tie-in line for accessing the right-channel signals R of headset plug; Secondary signal tie-in line is for accessing the left channel signals L of headset plug, and the 3rd signal tie-in line is for accessing Mike's signal MIC of headset plug;
Step 5, is defined as USB and does not connect power supply access signal, specifically comprises:
In the time that level value is VCC, detection signal is that USB does not connect power supply access signal.
Preferably, because the pull-up resistor that increases a 10k at first signal tie-in line may cause the communication of D+ or R undesired, because the existence of pull-up resistor can have influence on edge and the sequential of usb data, can affect direct current biasing to voice-frequency channel, can cause audio distortion.Add first signal tie-in line and pull-up resistor after switch control and disconnect, just can not affect signal go out to have transmitted.Therefore need on first signal tie-in line, increase an enable switch, after receiving equipment access signal, connects CPU the enable switch on described first signal tie-in line, described resistance and described first signal tie-in line are connect, after decision operation completes, disconnect again this enable switch;
Concrete, in above-mentioned all embodiment detection signal be power line by USB namely the 3rd signal tie-in line trigger.High level thinks to access the USB of power supply, and low level is thought earphone or do not accessed the USB of power supply.
As shown in Figure 3, the embodiment of the present invention provides a kind of plug, and this plug can use on earphone or USB, and to realize the multiplexing of earphone and USB socket, this plug comprises:
First signal supply unit 31, for the right-channel signals under transmission of audio pattern, or the D+ signal of USB under transmission USB pattern;
Secondary signal transmission unit 32, for the left channel signals under transmission of audio pattern, or transmission USB
The D-signal of USB under pattern;
The 3rd signal transmission unit 33, for the Mike's signal under transmission of audio pattern, or the power supply signal of USB under transmission USB pattern.
As shown in Figure 4, the invention provides a kind of smart machine that comprises judgement access semiotic function, described smart machine comprises:
Receiving element 41, for receiving equipment access signal and detection signal;
Judging unit 42, for judging whether the detection signal receiving is USB power supply access signal; Or judge according to the judgment mode setting in advance whether described detection signal is earphone access signal;
Operating unit 44, in the time that described judging unit 42 determines that the detection signal receiving is USB power supply access signal, connection USB pattern realizes charging or the transfer of data of USB; Or, in the time that described judging unit determines that the detection signal receiving is earphone access signal, connect audio mode and realize transfer of data; Or determining when described judging unit the detection signal that receives is not earphone access signal neither SB power supply access signal time, determines that described detection signal is that USB does not connect power supply access signal.
Described operating unit 44 specifically for:
Respectively first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line are accessed to USB pattern by control switch; Now first signal tie-in line is for accessing the D+ signal of USB; Secondary signal tie-in line is for accessing the D-signal of USB, and the 3rd signal tie-in line is for accessing the power supply signal of USB.
Described smart machine also comprises:
Collecting unit 43, for increase resistance on first signal tie-in line, gathers the level value that increases the first signal tie-in line after resistance;
Described judging unit 42 specifically for, when the level value collecting when collecting unit 43 is 0V, determine that described detection signal is earphone access signal; When the level value collecting when collecting unit 43 is VCC, determine that described detection signal is that USB does not connect power supply access signal;
Described operating unit 44 specifically for, in the time that described judging unit determines that described detection signal is earphone access signal, by control switch respectively by first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line accessing to audio pattern; Now first signal tie-in line is for accessing the L channel letter of headset plug
Number; Secondary signal tie-in line is for accessing the right-channel signals of headset plug, and the 3rd signal tie-in line is for accessing Mike's signal of headset plug.
Described smart machine also comprises:
Enable unit 45, for connecting the enable switch on described first signal tie-in line, described resistance and described first signal tie-in line are connected.
As shown in Figure 5, a kind of system that judges access signal of the embodiment of the present invention, described system comprises:
Plug 51, comprises first signal supply unit, secondary signal transmission unit and the 3rd signal transmission unit; Described first signal supply unit, for the right-channel signals under transmission of audio pattern, or the D+ signal of USB under transmission USB pattern; Described secondary signal transmission unit, for the left channel signals under transmission of audio pattern, or the D-signal of USB under transmission USB pattern; Described the 3rd signal transmission unit, for the Mike's signal under transmission of audio pattern, or the power supply signal of USB under transmission USB pattern;
Smart machine 52, comprises described receiving element, judging unit and operating unit; Described receiving element, for receiving equipment access signal and detection signal; Described judging unit, for judging whether the detection signal receiving is USB power supply access signal; Or judge according to the judgment mode setting in advance whether described detection signal is earphone access signal; Described operating unit, in the time that the definite detection signal receiving of described judging unit is USB power supply access signal, connection USB pattern realizes charging or the transfer of data of USB; Or, in the time that described judging unit determines that the detection signal receiving is earphone access signal, connect audio mode and realize transfer of data; Or determining when described judging unit the detection signal that receives is not earphone access signal neither USB power supply access signal time, determines that described detection signal is that USB does not connect power supply access signal.
In sum, beneficial effect:
The method that the embodiment of the present invention provides, the detection signal receiving by judgement is that USB power supply access signal or earphone access signal or USB does not connect power supply access signal, determines that the plug being inserted in smart machine is for connecting earphone or USB.When determining while being USB power supply access signal, be inserted into plug in smart machine for connecting USB, therefore connect USB pattern, realize charging or the transfer of data of USB; Be earphone access signal when determining, be inserted into plug in smart machine for connecting earphone, therefore connect audio mode and realize the transmission of voice data; Be USB while not connecing power supply access signal when determining, can determine the USB that has inserted access failure power supply.Visible the method only needs an interface to can be used for the audio mode that USB pattern also can be used for earphone, has therefore greatly reduced the volume of wearable device.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method that judges access signal, is characterized in that, described method comprises:
Receiving after equipment access signal, judging whether the detection signal receiving is USB power supply access signal, if connection USB pattern realizes charging or the transfer of data of USB; Otherwise,
Judge that according to the judgment mode setting in advance whether described detection signal is earphone access signal, realizes transfer of data if connect audio mode; Otherwise described detection signal is defined as USB and does not connect power supply access signal.
2. the method for claim 1, is characterized in that, described connection USB pattern comprises:
Respectively first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line are accessed to USB pattern by control switch; Now first signal tie-in line is for accessing the D+ signal of USB; Secondary signal tie-in line is for accessing the D-signal of USB, and the 3rd signal tie-in line is for accessing the power supply signal of USB.
3. the method for claim 1, is characterized in that, described in the judgment mode that sets in advance comprise:
On first signal tie-in line, increase resistance, gather the level value that increases the first signal tie-in line after resistance; Describedly judge that whether described detection signal is earphone access signal, realize transfer of data and comprise if connect audio mode:
In the time that described level value is 0V, described detection signal is earphone access signal, by control switch respectively by first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line accessing to audio pattern; Now first signal tie-in line is for accessing the right-channel signals of headset plug; Secondary signal tie-in line is for accessing the left channel signals of headset plug, and the 3rd signal tie-in line is for accessing Mike's signal of headset plug;
Described while judging described detection signal for earphone access signal, be defined as USB and do not connect power supply access signal and comprise:
In the time that described level value is VCC, described detection signal is that USB does not connect power supply access signal.
4. method as claimed in claim 3, is characterized in that, after receiving described equipment access signal and before judging according to the judgment mode setting in advance whether described detection signal is earphone access signal, further comprises:
Connect the enable switch on described first signal tie-in line, make described resistance and the access of described first signal
Line is connected.
5. a plug, is characterized in that, described plug comprises:
First signal supply unit, for the right-channel signals under transmission of audio pattern, or the D+ signal of USB under transmission USB pattern;
Secondary signal transmission unit, for the left channel signals under transmission of audio pattern, or transmission USB
The D-signal of USB under pattern;
The 3rd signal transmission unit, for the Mike's signal under transmission of audio pattern, or the power supply signal of USB under transmission USB pattern.
6. a smart machine that comprises judgement access semiotic function, is characterized in that, described smart machine comprises:
Receiving element, for receiving equipment access signal and detection signal;
Judging unit, for judging whether the detection signal receiving is USB power supply access signal; Or judge according to the judgment mode setting in advance whether described detection signal is earphone access signal;
Operating unit, in the time that the definite detection signal receiving of described judging unit is USB power supply access signal, connection USB pattern realizes charging or the transfer of data of USB; Or, in the time that described judging unit determines that the detection signal receiving is earphone access signal, connect audio mode and realize transfer of data; Or determining when described judging unit the detection signal that receives is not earphone access signal neither USB power supply access signal time, determines that described detection signal is that USB does not connect power supply access signal.
7. smart machine as claimed in claim 6, is characterized in that, described operating unit specifically for:
Respectively first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line are accessed to USB pattern by control switch; Now first signal tie-in line is for accessing the D+ signal of USB; Secondary signal tie-in line is for accessing the D-signal of USB, and the 3rd signal tie-in line is for accessing the power supply signal of USB.
8. smart machine as claimed in claim 6, is characterized in that, described smart machine also comprises:
Collecting unit, for increase resistance on first signal tie-in line, gathers the level value that increases the first signal tie-in line after resistance;
Described judging unit specifically for, when the level value collecting when collecting unit is 0V, determine that described detection signal is earphone access signal; When the level value collecting when collecting unit is VCC, described in determining
Detection signal is that USB does not connect power supply access signal;
Described operating unit specifically for, in the time that described judging unit determines that described detection signal is earphone access signal, by control switch respectively by first signal tie-in line, secondary signal tie-in line and the 3rd signal tie-in line accessing to audio pattern; Now first signal tie-in line is for accessing the right-channel signals of headset plug; Secondary signal tie-in line is for accessing the left channel signals of headset plug, and the 3rd signal tie-in line is for accessing Mike's signal of headset plug.
9. smart machine as claimed in claim 8, is characterized in that, described smart machine also comprises:
Enable unit, for connecting the enable switch on described first signal tie-in line, described resistance and described first signal tie-in line are connected.
10. a system that judges access signal, is characterized in that, described system comprises:
Plug, comprises first signal supply unit, secondary signal transmission unit and the 3rd signal transmission unit; Described first signal supply unit, for the right-channel signals under transmission of audio pattern, or the D+ signal of USB under transmission USB pattern; Described secondary signal transmission unit, for the left channel signals under transmission of audio pattern, or the D-signal of USB under transmission USB pattern; Described the 3rd signal transmission unit, for the Mike's signal under transmission of audio pattern, or the power supply signal of USB under transmission USB pattern;
Smart machine, comprises described receiving element, judging unit and operating unit; Described receiving element, for receiving equipment access signal and detection signal; Described judging unit, for judging whether the detection signal receiving is USB power supply access signal; Or judge according to the judgment mode setting in advance whether described detection signal is earphone access signal; Described operating unit, in the time that the definite detection signal receiving of described judging unit is USB power supply access signal, connection USB pattern realizes charging or the transfer of data of USB; Or, in the time that described judging unit determines that the detection signal receiving is earphone access signal, connect audio mode and realize transfer of data; Or determining when described judging unit the detection signal that receives is not earphone access signal neither USB power supply access signal time, determines that described detection signal is that USB does not connect power supply access signal.
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| CN201410076950.2A CN103813231A (en) | 2014-03-05 | 2014-03-05 | Method, intelligent device, system and plug for judging access signals |
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| CN201410076950.2A CN103813231A (en) | 2014-03-05 | 2014-03-05 | Method, intelligent device, system and plug for judging access signals |
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| CN201410076950.2A Pending CN103813231A (en) | 2014-03-05 | 2014-03-05 | Method, intelligent device, system and plug for judging access signals |
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| CN104572540A (en) * | 2015-02-03 | 2015-04-29 | 重庆蓝岸通讯技术有限公司 | Method for achieving USB transmission by multiplexing earphone interface and mobile terminal with multiplexing earphone interface |
| US9557716B1 (en) | 2015-09-20 | 2017-01-31 | Qualcomm Incorporated | Multipurpose magnetic crown on wearable device and adapter for power supply and audio, video and data access |
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| CN111651392A (en) * | 2020-05-21 | 2020-09-11 | 上海龙旗科技股份有限公司 | Method, system and equipment for connecting wearable equipment |
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