CN206302577U - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
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- CN206302577U CN206302577U CN201621223562.3U CN201621223562U CN206302577U CN 206302577 U CN206302577 U CN 206302577U CN 201621223562 U CN201621223562 U CN 201621223562U CN 206302577 U CN206302577 U CN 206302577U
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- circuit
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- undamped
- switching switch
- mobile terminal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model provides a kind of mobile terminal, mobile terminal includes human body proximity sensor, processing unit, rf processing circuitry, switching circuit, undamped circuit, attenuator circuit and antenna, and human body proximity sensor, rf processing circuitry and switching circuit are electrically connected with processing unit respectively；Human body proximity sensor sends to processing unit the distance value with human body, and processing unit sends to switching circuit the deamplification of generation or undamped signal；Switching circuit receiving attenuation signal, and the radio signal transmission that rf processing circuitry is sent, to attenuator circuit, attenuator circuit is decayed to radiofrequency signal, and the radiofrequency signal after decay is sent to antenna；Switching circuit also receives undamped signal, and the radio signal transmission that rf processing circuitry is sent, to undamped circuit, the radiofrequency signal that undamped circuit will be received is sent to antenna.The utility model can reduce mobile terminal SAR, and improve operating efficiency.
Description
Technical field
The utility model is related to a kind of mobile terminal, and more particularly to one kind can reduce SAR (Specific Absorption
Rate, electromagnetic wave absorption rate or specific absorption rate) mobile terminal.
Background technology
Due to wireless device (such as mobile phone) widely available, increasing government department, telecommunications worldwide
Regulatory authorities etc. requires for electromagenetic wave radiation to be reduced to a suitable level.SAR is the electromagnetism wave energy of mobile phone or wireless product
Amount absorbs ratio, and it is defined as：In the presence of external electromagnetic field, induction field will be produced in human body.Due to the various devices of human body
Official is lossy dielectric, therefore electromagnetic field will produce electric current in vivo, causes to absorb and dissipative electromagnetic energy.In biological dosimetry
Conventional SAR characterizes this physical process.The electromagnetic work that the meaning of SAR is absorbed or consumed by the tissue of unit quality
Rate, unit is W/kg, from networking specification of the China to SAR knowable to, be 2W/kg to the limit value of SAR.
Therefore, pursuit of the brand manufacturers of mobile terminal product for SAR is also more and more.At present, it is general by changing
The material of kind antenna sticks on the modes such as wave absorbing patch near antenna and reduces the SAR of mobile terminal, but uses such mode
When, to inhale ripple material or wave absorbing patch is easily damaged and causes to lose its function, stability is poor, causes the efficiency for reducing SAR low, and
Replacement cost is high.
Utility model content
The technical problems to be solved in the utility model is to overcome the mode of mobile terminal reduction SAR in the prior art steady
Qualitative difference, reduce SAR efficiency it is low, and high cost defect, there is provided a kind of mobile terminal.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of mobile terminal, its feature is that the mobile terminal includes human body proximity sensor, processing unit, radio frequency
Process circuit, switching circuit, undamped circuit, attenuator circuit and antenna, the human body proximity sensor, radio frequency processing electricity
Road and the switching circuit are electrically connected with the processing unit respectively；
The human body proximity sensor is used to send the distance value with human body to the processing unit, the processing unit
Receive the distance value and produce deamplification or undamped signal, the processing unit be used for by the deamplification send to
The switching circuit, or for the undamped signal to be sent to the switching circuit；
The switching circuit is used for receiving attenuation signal, and the radio signal transmission that the rf processing circuitry is sent
To the attenuator circuit, the attenuator circuit is used to decay radiofrequency signal, and the radiofrequency signal after decay is sent
To the antenna；
The switching circuit is additionally operable to receive undamped signal, and the radiofrequency signal that the rf processing circuitry is sent
Transmit to the undamped circuit, the radiofrequency signal that the undamped circuit is used to receive is sent to the antenna.
In this programme, mobile terminal transmitting is actively reduced only when human body proximity is detected with reference to human body proximity sensor
Power, it is with strong points so as to reduce mobile terminal SAP, control whole process by processing unit, high degree of automation, because
This job stability is high, efficiency high, and need not set absorbing material, therefore reduces production cost.
It is preferred that the switching circuit include first switching switch and second switching switch, it is described first switching switch and
The second switching switch is electrically connected with the processing unit respectively, and the first switching switch and the rf processing circuitry are electric
Connection, the undamped circuit and the attenuator circuit are respectively electrically connected to the first switching switch and second switching is opened
Between pass, the second switching switch is electrically connected with the antenna；
The process circuit sends to the described first switching switch and institute the deamplification or the undamped signal
The second switching switch is stated, the first switching switch and the second switching switch are cut for receiving the deamplification
The attenuator circuit is shifted to, the first switching switch and the second switching switch are additionally operable to receive the undamped signal,
And switch to the undamped circuit.
It is preferred that when the mobile terminal starts to surf the Net or converse, the processing unit opens the man body approaching sensing
Device, the human body proximity sensor is sent to the processing unit distance value with human body according to predeterminated frequency, until online
Or end of conversation.
In this programme, only just actively reduced when human body proximity is detected and user uses mobile terminal Internet access or call
SAR, it is to avoid user also reduces SAR and causes the situation of power consumption when mobile terminal is not used, so as to save the electricity of mobile terminal
Amount.
It is preferred that the processing unit is additionally operable to detect RSSI (the Received Signal of the mobile terminal
Strength Indication, the signal intensity of reception is indicated) value.
In this programme, when the distance value is less than or equal to the first threshold, the RSSI value is less than or equal to the
During two threshold values, the processing unit is used to send the deamplification to the switching circuit, when the RSSI value is more than institute
When stating Second Threshold, the processing unit is used to send the undamped signal to the switching circuit.
Only when the RSSI value of mobile terminal is less than or equal to -90dBm, transmission power can be by network and mobile terminal certainly
Dynamic control reaches maximum, and now SAR is also maximum, it is therefore desirable to reduce SAR.When RSSI value is more than -90dBm, network
Corresponding reduction is automatically controlled to transmission power to mobile terminal, need not now be decayed, without reducing SAR.
It is preferred that the attenuator circuit include the first attenuator circuit and the second attenuator circuit, first attenuator circuit and
Second attenuator circuit is used to decay radiofrequency signal, and the pad value of second attenuator circuit declines more than described first
The pad value on powered down road；
The deamplification includes the first deamplification and the second deamplification, and the switching circuit is used for reception first and declines
Cut signal, and the radio signal transmission that the rf processing circuitry is sent, to first attenuator circuit, the switching is electric
Road is additionally operable to receive the second deamplification, and the radio signal transmission of rf processing circuitry transmission to described second is declined
Powered down road.
In this programme, when the distance value is more than or equal to the 3rd threshold value, and during less than or equal to the first threshold,
The radio signal transmission that the switching circuit sends the rf processing circuitry to first attenuator circuit, when the distance
When value is less than three threshold value, the radio signal transmission that the switching circuit sends the rf processing circuitry to described the
Two attenuator circuits.
On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, obtain final product the utility model it is each compared with
Good example.
Positive effect of the present utility model is：
The mobile terminal that the utility model is provided can actively reduce movement when human body proximity is sensed to mobile terminal
Terminal transmission power, so as to reduce mobile terminal SAR, improves job stability, improves the effect for reducing mobile terminal SAR
Rate, and reduce production cost.
Brief description of the drawings
Fig. 1 is the structural representation of the mobile terminal of the utility model preferred embodiment.
Specific embodiment
Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.
As shown in figure 1, the mobile terminal that the present embodiment is provided is included at human body proximity sensor 1, processing unit 2, radio frequency
Reason circuit 3, first switching switch 4, second switching switch the 5, first attenuator circuit 6, the second attenuator circuit 7, undamped circuit 8 and
Antenna 9, human body proximity sensor 1, the switching of rf processing circuitry 3, first switch 4 and the second switching switch 5 are single with treatment respectively
Unit 2 is electrically connected, and the first switching switch 4 is electrically connected with rf processing circuitry 3, and the second switching switch 5 is electrically connected with antenna 9, and first
Attenuator circuit 6, the second attenuator circuit 7 and undamped circuit 8 are respectively electrically connected to the switching switch 5 of the first switching switch 4 and second
Between, in the present embodiment, the mobile terminal is mobile phone.
Specifically, when the mobile phone starts to surf the Net or converse, processing unit 2 opens human body proximity sensor 1, human body proximity
Sensor 1 is used for according to predeterminated frequency detection and the distance of human body, and distance value is sent to processing unit 2, until online or
End of conversation, wherein, the model of human body proximity sensor 1 and the predeterminated frequency can be selected according to actual conditions.
In the present embodiment, only just actively dropped when human body proximity is detected and user uses the surfing Internet with cell phone or call
Low SAR, it is to avoid user also reduces SAR and causes the situation of power consumption when the mobile phone is not used, so as to save the mobile phone
Electricity.
Before distance of the detection with human body of human body proximity sensor 1, human body when near the antenna 9 of object proximity mobile phone
Proximity transducer 1 can identification be first human body proximity or other objects, when close is human body, the collection of human body proximity sensor 1
Can be reacted into an inductance capacitance on circuit, inductance capacitance can produce phase with close in human body proximity apart from capacitance
The change answered, produces the capacitance of change to be converted into magnitude of voltage and is sent to processing unit 2.
Whether processing unit 2 is used to first judge the distance value less than or equal to first threshold, if it is not, by undamped signal
Send to the first switching switch 4 and the second switching switch 5, if so, detecting the RSSI value of the mobile phone, judge that the RSSI value is
It is no to switch 5 if it is not, undamped signal being sent and switching the switching of switch 4 and second to first less than or equal to Second Threshold, if
It is, then judges the distance value more than or equal to the 3rd threshold value (less than the first threshold), and less than or equal to described first
During threshold value, the first deamplification is sent to the first switching switch 4 and the second switching switch 5, judge that the distance value is less than institute
When stating three threshold values, the second deamplification is sent to the first switching switch 4 and the second switching switch 5.
In the present embodiment, the first threshold determines by selected human body proximity sensor 1, the 3rd threshold value
It is set as 10cm, is adjusted also dependent on actual conditions, the Second Threshold is set as -90dBm, it is not limited to this joins
Number, adjusts also dependent on actual conditions.
Only when the RSSI value of mobile phone is less than or equal to -90dBm, transmission power can be automatically controlled with mobile phone by network and reached
To maximum, now SAR is also maximum, it is therefore desirable to reduce SAR.When RSSI value is more than -90dBm, network and mobile phone pair
Automatically controlling for transmission power is accordingly reduced, and need not now be decayed, without reducing SAR.
When the first switching switch 4 and the second switching switch 5 receive first deamplification, the first switching switch 4
And second switching switch 5 switch to the first attenuator circuit 6, rf processing circuitry 3 sends to the first attenuator circuit radiofrequency signal
6；
When the first switching switch 4 and the second switching switch 5 receive second deamplification, the first switching switch 4
And second switching switch 5 switch to the second attenuator circuit 7, rf processing circuitry 3 sends to the second attenuator circuit radiofrequency signal
7；
When first switching switch 4 and second switching switch 5 receive the undamped signal when, first switching switch 4 and
Second switching switch 5 switches to undamped circuit 8, and rf processing circuitry 3 sends to undamped circuit 8 radiofrequency signal.
In the present embodiment, the first attenuator circuit 6 is used to carry out 1dB to the radiofrequency signal for receiving to rf processing circuitry
Decay, and the radiofrequency signal after decay is sent to antenna 9, the second attenuator circuit 7 is used for rf processing circuitry to receiving
To radiofrequency signal carry out the decay of 3dB, and the radiofrequency signal after decay is sent to antenna 9,8 pairs, undamped circuit is received
Radiofrequency signal do not decayed, and be sent directly to antenna 9.Although specifically defining the number of attenuator circuit in the present embodiment
Amount and pad value, it is not limited to this quantity and pad value, can debug and select according to actual conditions, and attenuator circuit
Quantity is more, and pad value gets finer, can realize finer control.
In the present embodiment, with reference to human body proximity sensor only when detect human body proximity and user use surfing Internet with cell phone or
Mobile terminal emitting power is actively reduced during call, so that mobile phone SAR is reduced, it is with strong points, controlled by processing unit whole
Individual process, high degree of automation, therefore job stability is high, efficiency high, and absorbing material need not be set, therefore reduce production
Cost.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these implementation methods,
But these changes and modification each fall within protection domain of the present utility model.
Claims (4)
1. a kind of mobile terminal, it is characterised in that the mobile terminal is included at human body proximity sensor, processing unit, radio frequency
Reason circuit, switching circuit, undamped circuit, attenuator circuit and antenna, the human body proximity sensor, the rf processing circuitry
And the switching circuit is electrically connected with the processing unit respectively；
The human body proximity sensor is used to send the distance value with human body to the processing unit, and the processing unit is received
The distance value simultaneously produces deamplification or undamped signal, and the processing unit is used to send the deamplification to described
Switching circuit, or for the undamped signal to be sent to the switching circuit；
The switching circuit is used for receiving attenuation signal, and the radio signal transmission that the rf processing circuitry is sent is to institute
Attenuator circuit is stated, the attenuator circuit is used to decay radiofrequency signal, and the radiofrequency signal after decay is sent to institute
State antenna；
The switching circuit is additionally operable to receive undamped signal, and the radio signal transmission that the rf processing circuitry is sent
To the undamped circuit, the radiofrequency signal that the undamped circuit is used to receive is sent to the antenna.
2. mobile terminal as claimed in claim 1, it is characterised in that the switching circuit includes the first switching switch and second
Switching switch, the first switching switch and the second switching switch are electrically connected with the processing unit respectively, and described first
Switching switch electrically connect with the rf processing circuitry, described in the undamped circuit and the attenuator circuit are respectively electrically connected to
Between first switching switch and the second switching switch, the second switching switch is electrically connected with the antenna；
The process circuit sends to the described first switching switch and described the deamplification or the undamped signal
Two switching switches, the first switching switch and the second switching switch are switched to for receiving the deamplification
The attenuator circuit, the first switching switch and the second switching switch are additionally operable to receive the undamped signal, and
Switch to the undamped circuit.
3. mobile terminal as claimed in claim 1, it is characterised in that the processing unit is additionally operable to detect the mobile terminal
RSSI value.
4. mobile terminal as claimed in claim 1, it is characterised in that the attenuator circuit includes the first attenuator circuit and second
Attenuator circuit, first attenuator circuit and the second attenuator circuit are used to decay radiofrequency signal, and described second declines
Pad value of the pad value on powered down road more than first attenuator circuit；
The deamplification includes the first deamplification and the second deamplification, and the switching circuit is used to receive the first decay letter
Number, and the radio signal transmission that the rf processing circuitry is sent, to first attenuator circuit, the switching circuit is also
For receiving the second deamplification, and the radio signal transmission that the rf processing circuitry is sent is electric to the described second decay
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621223562.3U CN206302577U (en) | 2016-11-11 | 2016-11-11 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621223562.3U CN206302577U (en) | 2016-11-11 | 2016-11-11 | Mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206302577U true CN206302577U (en) | 2017-07-04 |
Family
ID=59202716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621223562.3U Active CN206302577U (en) | 2016-11-11 | 2016-11-11 | Mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206302577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111865346A (en) * | 2019-04-26 | 2020-10-30 | 北京小米移动软件有限公司 | Mobile terminal and control method |
| US11288497B2 (en) * | 2017-06-30 | 2022-03-29 | Maxlinear, Inc. | Wireless network with awareness of human presence |
-
2016
- 2016-11-11 CN CN201621223562.3U patent/CN206302577U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11288497B2 (en) * | 2017-06-30 | 2022-03-29 | Maxlinear, Inc. | Wireless network with awareness of human presence |
| US20220222960A1 (en) * | 2017-06-30 | 2022-07-14 | Maxlinear, Inc. | Wireless network with awareness of human presence |
| US12002277B2 (en) * | 2017-06-30 | 2024-06-04 | Maxlinear, Inc. | Wireless network with awareness of human presence |
| CN111865346A (en) * | 2019-04-26 | 2020-10-30 | 北京小米移动软件有限公司 | Mobile terminal and control method |
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