CN207283610U - A kind of sound volume control device for intelligent terminal - Google Patents
A kind of sound volume control device for intelligent terminal Download PDFInfo
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- CN207283610U CN207283610U CN201720925956.1U CN201720925956U CN207283610U CN 207283610 U CN207283610 U CN 207283610U CN 201720925956 U CN201720925956 U CN 201720925956U CN 207283610 U CN207283610 U CN 207283610U
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- intelligent terminal
- volume control
- roller
- control device
- sound volume
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Abstract
The utility model provides a kind of sound volume control device of intelligent terminal, and the sound volume control device includes：Operation module, on the intelligent terminal, including the operation portion arranged on the intelligent terminal surface, the operation portion surface receive a slide, produce a physical signal；Detection module, in the intelligent terminal, is connected with the operation module, and the physical signal is converted to an electric signal；Signal conversion module, is connected with the detection module, and the electric signal is converted to volume control signal, and sends the audio playing module in the volume control signal to the intelligent terminal.The technical solution of the utility model realizes the smooth control to intelligent terminal volume；Change traditional button operation mode, enrich the operation selection of user.
Description
Technical field
It the utility model is related to intelligent terminal field, more particularly to a kind of sound volume control device for intelligent terminal.
Background technology
The intelligent terminal, can be that smart mobile phone, tablet computer, multimedia player etc. possess volume playing function
Smart machine, can be with audio signals such as playing alert tones, music, video sound.Under different application scenarios, to the intelligence
The volume of terminal has a different requirements, such as in noisy environment, the volume of the intelligent terminal should it is suitably larger with
Just user can hear；In a meeting, the volume of the intelligent terminal should be smaller, to disturb meeting；For different
It is sufficient that people, the volume being adapted to are also different, and somebody is ear-sensitive, less volume；Somebody's ear is inconvenient,
Need larger volume.Existing intelligent terminal can realize the control to volume, and common mode is on intelligent terminal surface
Set volume to increase and decrease button, volume is adjusted by pressing volume increasing key or volume reduction key；Can also be in intelligent terminal
Setup module in volume is adjusted.But existing volume control mode there are regulating gradient it is uncontrollable the problem of,
When i.e. user presses volume key, the intelligent terminal only can be increased or be reduced volume operation with default volume value, not enough
Smoothly.
The prior art has made effort in above-mentioned technical field, such as Chinese invention patent prospectus (publication number：
CN104915030A a kind of operating method based on mobile terminal roller button) is disclosed, this method includes：Obtain mobile terminal
Current application scene and roller button roller motion parameter；According to the current application scene and roller motion parameter of acquisition,
Generate the corresponding operational order of roller motion parameter；Perform the operational order of generation.The present invention also provides one kind based on movement
The operation device of terminal rolling wheel button.The present invention instead of three buttons (power key, volume increasing key by a roller button
With volume reducing key), when user needs to operate roller button, the physical button for recognizing different is not spent, is only needed direct
Roller button is pressed or/and rolling operation, simplify operating process of the user to physical button, do not weakening thing
On the premise of managing keypress function, the fluency of user's operation mobile terminal physical button is improved.
Although foregoing invention has been realized in operating by pair of rollers mobile terminal, but still there are the following problems：Failing will
In terms of roller is applied to volume control, the smooth control to intelligent terminal volume can not be realized.
Therefore how smooth control is carried out to the volume of the intelligent terminal, is a technical issues that need to address.
Utility model content
In order to overcome above-mentioned technological deficiency, the utility model discloses a kind of sound volume control device for intelligent terminal,
The sound volume control device includes：
Operation module, on the intelligent terminal, including the operation portion arranged on the intelligent terminal surface, the operation
Portion surface receives a slide, produces a physical signal；
Detection module, in the intelligent terminal, is connected with the operation module, and the physical signal is converted to one
Electric signal；
Signal conversion module, in the intelligent terminal, is connected with the detection module, the electric signal is converted to
Volume control signal, and send the audio playing module in the volume control signal to the intelligent terminal.
In the certain embodiments of the application, the operation portion includes a roller, and the roller receives slide outside behaviour
Make and rotate.
In the certain embodiments of the application, the roller is arranged on the narrow side of the intelligent terminal, the roller
Axis is orthogonal with the screen plane of the intelligent terminal.
In the certain embodiments of the application, the roller side is equipped with groove, the groove direction and the roller
Axis it is parallel.
In the certain embodiments of the application, the operation module further includes a push switch, with the roller
Axis connection, when outside applies pressing operation to the roller, the switch is triggered.
In the certain embodiments of the application, the detection module includes a photoelectric converter, the photoelectric converter
Including the grating coaxial with the roller and correlation photoemission unit and receiving unit.
In the certain embodiments of the application, the operation portion includes a touch pad, and the slide imposes on described
The surface of touch pad.
In the certain embodiments of the application, capacitance variations or resistance become caused by the touch pad sensing peripheral operation
Change.
In the certain embodiments of the application, the detection module includes a sensor circuit, and the sensor circuit is by institute
State capacitance variations or resistance variations are converted to different voltage signals.
In the certain embodiments of the application, the sound volume control device further includes：
Volume display module, in the intelligent terminal, is connected with the signal conversion module, when the operation portion connects
When receiving peripheral operation, in showing current volume value on the screen of the intelligent terminal.
After employing above-mentioned technical proposal, compared with prior art, have the advantages that：
1. realize the smooth control to intelligent terminal volume；
2. changing traditional button operation mode, the operation selection of user is enriched.
Brief description of the drawings
Fig. 1 is the topological structure for meeting the sound volume control device for being used for intelligent terminal in one preferred embodiment of the utility model
Schematic diagram；
Fig. 2 is that the topology for meeting the sound volume control device in another preferred embodiment of the utility model for intelligent terminal is tied
Structure schematic diagram；
Fig. 3 is the structural representation for meeting the sound volume control device for being used for intelligent terminal in one preferred embodiment of the utility model
Figure；
Fig. 4 is the structure diagram for meeting roller in one preferred embodiment of the utility model；
Fig. 5 is that the structure for meeting the sound volume control device in another preferred embodiment of the utility model for intelligent terminal is shown
It is intended to；
Fig. 6 is that the structure for meeting the sound volume control device in the utility model further embodiment for intelligent terminal is shown
It is intended to.
Reference numeral：
10- sound volume control devices, 11- operation modules, 12- detection modules, 13- signal conversion modules, 14- volumes show mould
Block, 20- intelligent terminals, 21- rollers, 211- grooves, the axis of 212- rollers, 22- push switch, 23- photoelectric converters, 231-
Transmitter unit, 232- receiving units, 233- gratings, 24- touch pads.
Embodiment
The advantages of the utility model is expanded on further below in conjunction with attached drawing and specific embodiment.
In described below, refer to the attached drawing, attached drawing describes some embodiments of the application.It should be appreciated that also it can be used
Other embodiment, and can be carried out in the case of without departing substantially from spirit and scope of the present disclosure mechanical composition, structure, electrically with
And the detailed description below operational change should not be considered limiting, and the scope of embodiments herein
Only terms used herein are limited by the claims for the patent announced merely to describing specific embodiment, and be not
It is intended to limitation the application.The term of space correlation, for example, " on ", " under ", "left", "right", " following ", " lower section ", " lower part ",
" top ", " top " etc., can use in order to an element shown in explanatory drawin or feature and another element or spy in the text
The relation of sign.
Furthermore as used in herein, singulative " one ", "one" and "the" are intended to also include plural number shape
Formula, unless having opposite instruction in context it will be further understood that term "comprising", " comprising " show that there are the spy
Sign, step, operation, element, component, project, species, and/or group, but it is not excluded for other one or more features, step, behaviour
Work, element, component, project, the presence of species, and/or group, appearance or addition term "or" used herein and "and/or" quilt
Be construed to inclusive, or mean any one or any combinations therefore, " A, B or C " or " A, B and/or C " mean " with
Descend any one：A；B；C；A and B；A and C；B and C；A, B and C " are only when element, function, step or the combination of operation are in some sides
When inherently mutually exclusive under formula, the exception of this definition just occurs.
Refering to Fig. 1, to meet the topology knot of the sound volume control device of intelligent terminal in one preferred embodiment of the utility model
Structure schematic diagram, the sound volume control device 10 include：
- operation module 11
Operation module 11, on the intelligent terminal 20, including the operation portion arranged on 20 surface of intelligent terminal, institute
State operation portion surface and receive a slide, produce a physical signal.Operation portion in the operation module 11 for directly with use
The module of family contact, in the prior art, the operation portion can be volume button, receive the pressing operation of user.In this reality
Apply in example, the operation module 11 then receives the slide of user, then the operation portion in the operation module 11 is to feel
Answer the component of slide, such as the physical unit such as touch pad or roller.The operation module 11 turns exterior slide
Corresponding physical signal is changed to, so that other modules are identified and change.The operation module 11 further includes some auxiliary knots
Component, assists the operation portion to work, can be necessary support member, so as to which the operation portion is fixed on the intelligence eventually
Hold 20 surfaces；Such as the bearing of the surrounding bound edge of touch pad either roller.
- detection module 12
Detection module 12, in the intelligent terminal 20, is connected with the operation module 11, and the physical signal is turned
It is changed to an electric signal.Physical signal caused by the operation module 11 for example rotates, the change of resistance or capacitance can not be direct
Identified by the intelligent terminal 20, it is also necessary to be further converted into identifiable electric signal.The detection module 12 be with it is described
Operation module 11 adaptable sensor or sensor circuit, such as velocity sensor, resistance sampling circuit, capacitive sensing circuit
Deng, have in the prior art maturation application scheme.Speed includes linear velocity and angular speed, corresponding just to have linear speed
Sensor and angular-rate sensor are spent, is all referred to as velocity sensor.With the emergence of sophisticated manufacturing now and save cost
Demand, non-contact speed measurement sensor can slowly take contact tachogenerator.The telecommunications that the detection module 12 is converted to
Number be preferably analog quantity magnitude of voltage, to correspond to the volume of consecutive variations.
- signal conversion module 13
Signal conversion module 13, in the intelligent terminal, is connected with the detection module 12, and the electric signal is turned
Volume control signal is changed to, and sends the audio playing module in the volume control signal to the intelligent terminal 20.It is described
Signal conversion module 13 turns the electric signal according to the form that the audio playing module in the intelligent terminal 20 can receive
It is changed to the volume control signal.If the audio playing module receives the volume value of digital quantity, the signal conversion module
13 be analog-digital converter, and the electric signal of analog quantity is converted to the volume control signal of digital quantity, realizes the numeral of volume control
Change.Analog signal could be handled after being only converted into digital signal by A/D with software, everything is turned by A/D
Parallel operation (ADC) is come what is realized.Corresponding with analog-to-digital conversion is digital-to-analogue conversion, and digital-to-analogue conversion is the inverse process of analog-to-digital conversion.Mould
Number converter, that is, A/D converter, or abbreviation ADC, typically refer to an electronic component by analog-signal transitions for digital signal.
If the audio playing module receives the signal control of hardware view, such as the control signal of power amplification circuit, control letter
Number for the analog quantity in certain voltage section or electric current section；Then the electric signal is converted to institute by the signal conversion module 13
State in the permitted scope of control signal.Such as the electric signal is 0~5 volt of voltage, and what the power amplification circuit received
Control signal is 100~500 millivolts of voltages, then the signal conversion module 13 by modes such as electric resistance partial pressures by the electricity of electric signal
The as low as suitable scope of pressure drop.
Refering to Fig. 2, to meet the topology of the sound volume control device of intelligent terminal in another preferred embodiment of the utility model
Structure diagram, the sound volume control device 10 further include：
- volume display module 14
Volume display module 14, in the intelligent terminal 20, is connected, as the behaviour with the signal conversion module 13
When making portion and receiving peripheral operation, in showing current volume value on the screen of the intelligent terminal 20.In the present embodiment, as the behaviour
When making portion's reception peripheral operation, physical change can be caused, and then electric signal is converted to by the detection module 12, the signal turns
The volume value that the electric signal is converted to digital quantity by mold changing block 13 is sent to the volume display module 14, then the volume is shown
Show that module 14 shows the volume value.For the volume display module 14, its input signal is from the signal modulus of conversion
The volume value of block 13, when the signal conversion module 13 changes electric signal, will not only be simulated using analog-to-digital conversion principle
The electric signal of amount is converted to digital signal, also needs to consider numerical intervals requirement of the intelligent terminal 20 to volume value, and by institute
State digital signal and be converted to the volume value for meeting section requirement.The volume display module 14 also needs to export the volume value, institute
State volume display module 14 to be connected with the display module in the intelligent terminal 20, content to be shown will be needed by data-interface
It is sent to the display module.The form of display can be that volume numerical value is shown or graphical display；Shown if figure
Show, the volume value must also be converted to a certain proportion of graphical display size by the volume display module 14, so as to intuitively
Show volume change.The effect of the volume display module 14 is as a result, so that user is quick to user feedback volume control
Volume value is adjusted to suitable scope.
Refering to Fig. 3, show to meet the structure of the sound volume control device of intelligent terminal in one preferred embodiment of the utility model
It is intended to, the operation portion includes：
- roller 21
Roller 21, receives slide outside operation and rotates.Roller 21 is common operation structure,, can in colyliform for circle
Rotated with being slided or being stirred by user.The size of the roller 21 should take into full account the overall structure of the intelligent terminal 20,
The convenience of user's operation is considered at the same time, its diameter can be 0.5 centimetre~3 centimetres.The position of the roller 21 will also consider
User's operation convenience, one way in which are to substitute the distributing position of volume button in the prior art, can also be arranged on described
The back side, top or the bottom of intelligent terminal 20.The roller 21 should have slightly convex relative to the surface of the intelligent terminal 20
Rise, so as to user's touch operation.The larger material of the preferred friction coefficient of contact surface material of the roller 21, such as rubber；Institute
Stating the main part of roller 21, that metal material or plastic material can be selected is firm indeformable to ensure.The roller 21 is to other moulds
When block transmits physical change, the periphery of the roller 21 can both contacted with other moving components, when the roller 21 rotates
When, other moving components are moved because of frictional force；The axis 212 of the roller can also be made to be connected with miscellaneous part, when the rolling
When wheel 21 rotates, miscellaneous part movement is driven.The roller 21 can be overall solid moulding, as discus；Can also
It is the moulding of middle hollow out, such as bicycle quick, the periphery of the roller 21 is connected by spoke with the axis 212 of the roller.
In the certain embodiments of the application, the roller 21 is arranged on the narrow side of the intelligent terminal 20, the rolling
The axis 212 of wheel 21 is orthogonal with the screen plane of the intelligent terminal 20.This improvement limits the position of the roller 21, i.e.,
Can be the left side or the right arranged on the narrow side of the intelligent terminal 20.The roller 21 put form it is also preferred that
Orthogonal in the screen plane of the intelligent terminal 20 for the axis of roller 21, i.e., the roller 21 is embedded in the intelligence shown in Fig. 3
The side of terminal 20, keeps " lying low " state, and the intelligent terminal can be placed in the palm by user at this time, be stirred using thumb
The roller 21, it is easy to operate.The height of the narrow side of the intelligent terminal 20 should be more than the thickness of the roller 21,
It so just can guarantee that the roller 21 is installed on the intelligent terminal 20 in the form of " insertion ".
Refering to Fig. 4, to meet the structure diagram of roller 21 in one preferred embodiment of the utility model, 21 side of roller
Face is equipped with groove 211, and 211 direction of groove is parallel with the axis 212 of the roller.211 mesh of groove of 21 side of roller
Be user carry out slide when, produce enough frictional force, prevent from skidding.The direction of the groove 211 and the rolling
The axis 212 of wheel is parallel, such user when being operated to roller 21, the direction of slide just with the groove 211 just
Hand over, can farthest produce frictional force, avoid skidding.The outer surface of the groove 211 can be arc, prismatic, tooth
The geometric shapes such as shape；The groove 211 can be continuously distributed in 21 periphery of roller, can also be spaced apart.
Refering to Fig. 5, to meet the structure of the sound volume control device of intelligent terminal in another preferred embodiment of the utility model
Schematic diagram, the operation module 11 further include a push switch 22, are connected with the axis 212 of the roller, when outside is to described
When roller 21 applies pressing operation, the switch 22 is triggered.In the present embodiment, the roller 21 not only receives the slip of user
Or operation is stirred, pressing operation can also be received.The pressing operation acts on the roller 21 first, can drive the rolling
The axis 212 of wheel moves downwardly together.The axis 212 of the roller is connected with the push switch 22, when the axis 212 of the roller
When moving downward, the push switch 22 is pressed, and then the push switch 22 is triggered.Structure in the present embodiment
Pressing from the user effect is transmitted in design by the axis 212 of the roller, will not hinder the rotation of the roller 21, for
Family provides a variety of operation selections.The design of push switch 22 described in the present embodiment, can be with the operating function phase of user
With reference to, such as by pressing the switch 22, clicking operation is carried out on the screen of the intelligent terminal 20, is substituted on the screen
Clicking operation.The push switch 22 can be connected with a detection circuit, when the switch is pressed or is not pressed, institute
State detection circuit and be in connection or blocking state, thus can reflect the state of the switch in the form of switching value.The inspection
The break-make information of slowdown monitoring circuit can be exchanged into 0 or 1 digital signal, and the input for identifying and being used as software to operate by relevant module is believed
Number.
In the certain embodiments of the application, the detection module 12 includes a photoelectric converter 23, and the photoelectricity turns
Parallel operation 23 includes the grating 233 coaxial with the roller 21 and correlation photoemission unit 231 and receiving unit 232.In Fig. 5
Give a kind of embodiment of the photoelectric converter 23, the photoelectric converter 23 includes three components, i.e., grating 233,
Transmitter unit 231, receiving unit 232.Wherein described transmitter unit 231 and receiving unit 232 are arranged in correlation, the transmitting
The optical signal that unit 231 is sent is received after the grating 233 by the receiving unit 232.The grating is by a large amount of etc.
The wide optics that parallel slits are formed at equal intervals, the slit allow light by the way that the part beyond the slit does not permit
Perhaps light passes through.In the present embodiment, the grating 233 is circle, wherein each slit is radiated from the center of circle to circumference.The grating
233 is coaxial with the roller 21, and when the roller 21, which receives peripheral operation, to be rotated, the grating 233 rotates synchronously.The hair
Penetrate unit 231 and continuously send out optical signal, otherwise the optical signal reaches the receiving unit by the slit of the grating 233
232, it can not be received or being obstructed by the grating 233 by the receiving unit 232.It is described when the grating 233 rotates
The optical signal that transmitter unit 231 is sent can be received by the receiving unit 232 intermittently.In the receiving unit 232 also
There is light-sensitive device, the optical signal of reception is converted into electric signal, therefore the final receiving unit 232 obtains the electricity of height staggeredly
Signal waveform.The electric signal waveform can reflect the operational circumstances of user, for example, stir the roller 21 stroke it is longer, institute
State that the angle of the rotation of roller 21 is bigger, and the optical signal break-make number caused by the grating 233 is also more, the final telecommunications
The height change frequency of number waveform is also more.The intention of user's control volume can pass through the embodiment quilt shown in Fig. 5
The control device 10 is perceived, if user thinks significantly to adjust volume, operates longer stroke, the roller 21 rotates larger
Angle, finally cause more change in electric number.
The roller 21, push switch 22 and photoelectric converter 23 shown in Fig. 5, its structure can be according to intelligent end
Accommodation is done in the design at end 20, such as the roller can turn 90 degrees placement partially, and the push switch 22 can be arranged on
21 opposite side of roller, the size of the grating 233 can be adjusted according to actual application environment.
Refering to Fig. 6, to meet the knot of the sound volume control device 10 of intelligent terminal in the utility model further embodiment
Structure schematic diagram, the operation portion include a touch pad 24, and the slide imposes on the surface of the touch pad 24.The present embodiment
Another mode for realizing operation portion is given, i.e., receiving slide outside using the touch pad 24 operates.The touch pad 24
It is a kind of on smooth Trackpad, be able to can be allowed just with a kind of input unit of moving cursor using the slide of finger
Scholar simply uses.The touch pad 24 is commonly applied to notebook computer, the replacement input mode as mouse.The touch
One of operation principle of plate 24 is that can change capacitance when the finger of user is close to touch pad, the control of touch pad oneself
Coremaking piece will will detect that capacitance change, be converted into coordinate, know finger situation of movement by capacitive sensing, to finger heat
Measure and insensitive.The touch pad 24 is arranged on 20 surface of intelligent terminal, facilitates user to carry out slip touch operation.It is described to touch
The shape of template 24 is preferably strip, since the change of volume only has the both direction that becomes larger and diminish, need to be avoided the occurrence of
Multiple slide directions cause ambiguity.
The detection module 12 can detect the track of slide on the touch pad 24 within a period of time, particularly rise
Beginning touch point with terminate the corresponding electric signal in touch point, and this electric signal is sent to the signal conversion module 13.The letter
Number modular converter 13 analyzes initial touch point electric signal corresponding with touch point is terminated, and can learn user's slide
Distance, and this distance is converted into corresponding volume control signal.Such as the detection module 12 detects the 3rd electric field respectively
Change in electric occurs with the position of the 5th electric field, and sends this information to the signal conversion module 13；The signal turns
Mold changing block 13 learns the lasting distance of slide before this according to default electric field and distance correspondence, and further according to pre-
If sliding distance be sent to the intelligent terminal with the corresponding volume control signal of correspondence generation of volume control signal
Audio playing module in 20.The detection module 12 only can both examine the slide on a change in coordinate axis direction
Survey, need to only consider the single coordinate of the starting point and ending point of the slide；Can also be in rectangular coordinate system
Slide is detected, and each touch point has one group of coordinate, and the signal conversion module 13 need to calculate the initial touch
The distance between point and termination two groups of touch point index, calculation refers to 2 points in plane space of air line distance algorithm.
In the certain embodiments of the application, the touch pad 24 senses capacitance variations or resistance caused by peripheral operation
Change.The touch sensible technology of mainstream mainly senses capacitance variations and resistance variations at present, both are different technologies
Route.In similar technical field, the touch-screen of intelligent terminal is touched usually using such design by sensing user's finger
Capacitance variations or resistance variations, realize the identification to touch operation caused by touching.
When 24 inductance capacitance of touch pad changes, the touch pad is one layer of particulate metal conductive materials, works as finger
When touching on the metal layer, the capacitance of contact will change so that the oscillator frequency being attached thereto changes, and passes through
Measurement frequency change can determine that touch location obtains information.The touch pad 24 plates long and narrow electrode on four sides, is leading
It is electric to form a low-voltage AC electric field in vivo.When user touches the touch pad 24, due to human body electric field, finger and conductor
Interlayer can form a coupled capacitor, and the electric current that four side electrodes are sent can flow to contact, and electric current is strong and weak and finger arrives electrode
Apart from directly proportional, the detection module 12 will calculating current ratio and power, accurately calculate the position of touch point.This implementation
In example, the touch pad 24 also supports multiple point touching, i.e., has plurality of positions that touch operation occurs at the same time on described touch pad 24,
It can identify these touch operations, when particularly user's finger is bonded closer with the touch pad 24, have multiple contact points.Institute
Touch pad 24 is stated by the way of inductance capacitance change, the advantage is that the detection to touch operation will not be by attachments such as spots
Interference, discrimination are higher.
When 24 inductive reactance of touch pad changes, user's finger carries out slide on the touch pad 24 to produce
The pressure is converted into the change of resistance value by raw pressure, the touch pad 24, and then be converted to by the detection module 12 can
The electric signal of identification, while identify the pressure active position.The operation principle of the touch pad 24 mainly passes through pressure sensitive
Principle realizes the identification to peripheral operation, and using the conductive layer of two layers of high transparency, distance is only 2.5 microns between two layers.When
When finger touches the touch pad 24, the two conductive layers of usual mutually insulated just have a contact in touch point position, because
Wherein a face conductive layer connects the 5V even voltages field of Y direction so that the voltage for detecting layer is changed into non-zero, the detection from zero
After module 12 detects this connection, A/D conversions are carried out, and by obtained magnitude of voltage compared with 5V, you can obtain the Y-axis of touch point
Coordinate, similarly draws the coordinate of X-axis.Touch pad 24 is not limited to above-mentioned operation principle described in the present embodiment, can also use other
Mode realizes the sensing to resistance change, for example forms sensor to pressure-sensitive component using varistor etc..This
The advantages of embodiment is that the touch pad 24 can react various forms of touch operations, either the finger of user or its
His position limbs, or felt pen, the accessories such as bar are touched, it can be identified by the touch pad 24.
In the certain embodiments of the application, the detection module 12 includes a sensor circuit, and the sensor circuit will
The capacitance variations or resistance variations are converted to different voltage signals.The implementation of detection module 12 described in the present embodiment
Corresponding 24 inductance capacitance of the touch pad change or the situation of resistance variations.The detection module 12 includes a sensor circuit, root
According to the object sensed for capacitance variations or resistance variations difference.It is described when 12 inductance capacitance of detection module changes
Sensor circuit plates long and narrow electrode on 24 4 side of touch pad, and a low-voltage AC electric field is formed in electric conductor.
When user touches the touch pad 24, electric current that four side electrodes are sent can flow to contact, and electric current is strong and weak with finger to electrode
Distance it is directly proportional, the detection module 12 will calculating current ratio and power, accurately calculate the position of touch point.Work as institute
When stating the change of 12 inductive reactance of detection module, the sensor circuit is the electric field being distributed on two conductive layers, when user touches
During the touch pad 24, electric field circuit can be caused in touch point, cause the voltage change of relevant position, so as to judge to touch
The position of point.
It should be noted that the embodiment of the utility model has preferable implementation, and not the utility model is appointed
The limitation of what form, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above
Same effective embodiment, as long as without departing from the content of technical solutions of the utility model, according to the technical essence of the utility model pair
Any modification or equivalent variations and modification that above example is made, in the range of still falling within technical solutions of the utility model.
Claims (10)
1. a kind of sound volume control device for intelligent terminal, it is characterised in that the sound volume control device includes：
Operation module, on the intelligent terminal, including the operation portion arranged on the intelligent terminal surface, the operation portion table
Face receives a slide, produces a physical signal；
Detection module, in the intelligent terminal, is connected with the operation module, and the physical signal is converted to a telecommunications
Number；
Signal conversion module, in the intelligent terminal, is connected with the detection module, and the electric signal is converted to volume
Control signal, and send the audio playing module in the volume control signal to the intelligent terminal.
2. sound volume control device as claimed in claim 1, it is characterised in that
The operation portion includes a roller, and the roller receives slide outside operation and rotates.
3. sound volume control device as claimed in claim 2, it is characterised in that
The roller is arranged on the narrow side of the intelligent terminal, and the screen plane of the axis of the roller and the intelligent terminal is just
Hand over.
4. sound volume control device as claimed in claim 2 or claim 3, it is characterised in that
The roller side is equipped with groove, and the groove direction is parallel with the axis of the roller.
5. sound volume control device as claimed in claim 2 or claim 3, it is characterised in that
The operation module further includes a push switch, the axis connection with the roller, is pressed when outside applies the roller
During press operation, the switch is triggered.
6. sound volume control device as claimed in claim 2 or claim 3, it is characterised in that
The detection module includes a photoelectric converter, and the photoelectric converter includes the grating coaxial with the roller and to penetrating
Formula photoemission unit and receiving unit.
7. sound volume control device as claimed in claim 1, it is characterised in that
The operation portion includes a touch pad, and the slide imposes on the surface of the touch pad.
8. sound volume control device as claimed in claim 7, it is characterised in that
Capacitance variations or resistance variations caused by the touch pad sensing peripheral operation.
9. sound volume control device as claimed in claim 8, it is characterised in that
The detection module includes a sensor circuit, and the capacitance variations or resistance variations are converted to difference by the sensor circuit
Voltage signal.
10. sound volume control device as claimed in claim 1, it is characterised in that
The sound volume control device further includes：
Volume display module, in the intelligent terminal, is connected with the signal conversion module, outside the operation portion receives
When portion operates, in showing current volume value on the screen of the intelligent terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925956.1U CN207283610U (en) | 2017-07-27 | 2017-07-27 | A kind of sound volume control device for intelligent terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925956.1U CN207283610U (en) | 2017-07-27 | 2017-07-27 | A kind of sound volume control device for intelligent terminal |
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| CN207283610U true CN207283610U (en) | 2018-04-27 |
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| CN201720925956.1U Active CN207283610U (en) | 2017-07-27 | 2017-07-27 | A kind of sound volume control device for intelligent terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430309A (en) * | 2019-07-01 | 2019-11-08 | 联想(北京)有限公司 | Electronic equipment and processing method |
| CN113093928A (en) * | 2020-01-08 | 2021-07-09 | 北京小米移动软件有限公司 | Scroll operation device, operation method and mobile terminal |
-
2017
- 2017-07-27 CN CN201720925956.1U patent/CN207283610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430309A (en) * | 2019-07-01 | 2019-11-08 | 联想(北京)有限公司 | Electronic equipment and processing method |
| CN113093928A (en) * | 2020-01-08 | 2021-07-09 | 北京小米移动软件有限公司 | Scroll operation device, operation method and mobile terminal |
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