CN109413728A - A kind of terminal device and signal processing method - Google Patents
A kind of terminal device and signal processing method Download PDFInfo
- Publication number
- CN109413728A CN109413728A CN201811653130.XA CN201811653130A CN109413728A CN 109413728 A CN109413728 A CN 109413728A CN 201811653130 A CN201811653130 A CN 201811653130A CN 109413728 A CN109413728 A CN 109413728A
- Authority
- CN
- China
- Prior art keywords
- frequency
- audio
- terminal device
- power consumption
- notch filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Telephone Function (AREA)
Abstract
The present invention provides a kind of terminal device and signal processing method, the terminal device includes: digital signal processor, notch filter module and audio-frequency amplifier, wherein: the input terminal of the notch filter module is connect with the output end of the digital signal processor, the output end of the notch filter module is connect with the input terminal of the audio-frequency amplifier, the signal of specific frequency carries out notch filter processing in the audio signal that the notch filter module is used to export the digital signal processor, the specific frequency is the frequency that power consumption number is greater than preset power consumption value in the frequency power consumption profile of audio system, wherein, the audio system includes the digital signal processor, the audio-frequency amplifier, the loudspeaker of the application processor of the terminal device and the terminal device.In this way, the audio that notch filter module can respond poor frequency to audio system carries out notch filter, to reduce the power consumption of terminal device.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of terminal devices and signal processing method.
Background technique
Demand with user to amusement is increasing, and music, video and game have become must in user's daily life
Indispensable entertainment selection makes user is available after work and study appropriate to loosen.Terminal device is playing music, view
During frequency or progress game, require using audio system.Audio system is different to the acoustic frequency response of different frequency
, poor to the acoustic frequency response of some frequencies, the power consumption so as to cause the terminal device under the frequency is relatively more.
Summary of the invention
The embodiment of the present invention provides a kind of terminal device and signal processing method, more to solve terminal device power consumption
Problem.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
In a first aspect, the embodiment of the invention provides a kind of terminal devices, comprising: digital signal processor, notch filter
Module and audio-frequency amplifier, in which:
The input terminal of the notch filter module is connect with the output end of the digital signal processor, the notch filter
The output end of module is connect with the input terminal of the audio-frequency amplifier, and the notch filter module is used for the digital signal
The signal for managing specific frequency in the audio signal of device output carries out notch filter processing, and the specific frequency is the frequency of audio system
Power consumption number is greater than the frequency of preset power consumption value in rate power consumption profile, wherein the audio system includes the Digital Signal Processing
Device, the audio-frequency amplifier, the application processor of the terminal device and the terminal device loudspeaker.
Second aspect, the embodiment of the present invention also provide a kind of signal processing method, are applied to above-mentioned terminal device, the side
Method includes:
Notch filter processing, the spy are carried out to the signal of specific frequency in the audio signal of digital signal processor output
Determine the frequency that power consumption number in the frequency power consumption profile that frequency is audio system is greater than preset power consumption value.
The third aspect, the embodiment of the present invention also provide a kind of terminal device, including processor, memory and are stored in described
It is real when the computer program is executed by the processor on memory and the computer program that can run on the processor
The step of existing above-mentioned signal processing method.
Fourth aspect, the embodiment of the present invention also provide a kind of computer readable storage medium, the computer-readable storage
Computer program is stored on medium, the step of computer program realizes above-mentioned signal processing method when being executed by processor.
The terminal device of the embodiment of the present invention, comprising: digital signal processor, notch filter module and audio-frequency amplifier,
Wherein: the input terminal of the notch filter module is connect with the output end of the digital signal processor, the notch filter mould
The output end of block is connect with the input terminal of the audio-frequency amplifier, and the notch filter module is used for the Digital Signal Processing
The signal of specific frequency carries out notch filter processing in the audio signal of device output, and the specific frequency is the frequency of audio system
In power consumption profile power consumption number be greater than preset power consumption value frequency, wherein the audio system include the digital signal processor,
The loudspeaker of the audio-frequency amplifier, the application processor of the terminal device and the terminal device.In this way, notch filter mould
The audio that block can respond poor frequency to audio system carries out notch filter, to reduce the power consumption of terminal device.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is one of the structure chart of terminal device provided in an embodiment of the present invention；
Fig. 2 is the two of the structure chart of terminal device provided in an embodiment of the present invention；
Fig. 3 is one of amplitude-frequency characteristic schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the two of amplitude-frequency characteristic schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the three of the structure chart of terminal device provided in an embodiment of the present invention；
Fig. 6 is the flow chart of signal processing method provided in an embodiment of the present invention；
Fig. 7 is the relation schematic diagram of frequency and power consumption provided in an embodiment of the present invention；
Fig. 8 is the four of the structure chart of terminal device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It is the structure chart of terminal device provided in an embodiment of the present invention referring to Fig. 1, Fig. 1, as shown in Figure 1, comprising: number letter
Number processor 1, notch filter module 2 and audio-frequency amplifier 3, in which: the input terminal of the notch filter module 2 and the number
The output end of signal processor 1 connects, and the input terminal of the output end of the notch filter module 2 and the audio-frequency amplifier 3 connects
Connect, the notch filter module 2 be used for the signal of specific frequency in the audio signal that is exported to the digital signal processor 1 into
The processing of row notch filter, the specific frequency are the frequency that power consumption number is greater than preset power consumption value in the frequency power consumption profile of audio system
Rate, wherein the audio system includes that the digital signal processor 1, the audio-frequency amplifier 3, the terminal device are answered
With the loudspeaker of processor and the terminal device.
In the present embodiment, above-mentioned notch filter module 2 is fallen into addition to the signal to specific frequency in above-mentioned audio signal
Except wave filtering, the signal except specific frequency in above-mentioned audio signal can also be transmitted, i.e., by above-mentioned audio signal
Signal except middle specific frequency is transmitted to audio-frequency amplifier 3.The specific frequency is in the frequency power consumption profile of audio system
Power consumption number is greater than the frequency of preset power consumption value, it can be understood as and specific frequency is that audio system responds poor some frequencies,
I.e. for audio system when playing the audio of above-mentioned specific frequency, the power consumption of terminal device is relatively more.
In this way, specific frequency in the audio signal that above-mentioned notch filter module 2 can export the digital signal processor 1
The signal of rate carries out notch filter processing, so as to reduce the power consumption of terminal device.Also, it can also be to notch filter module
2 parameter is adjusted, to guarantee that sense of hearing is unaffected with sound quality.
In the present embodiment, above-mentioned terminal device can be mobile phone, tablet computer (Tablet Personal Computer),
Laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, abbreviation PDA),
Mobile Internet access device (Mobile Internet Device, MID) or wearable device (Wearable Device) etc..
Optionally, the specific frequency is the maximum frequency of power consumption number in the frequency power consumption profile.
In the embodiment, the specific frequency is the maximum frequency of power consumption number in the frequency power consumption profile, to specific
The signal of frequency carries out notch filter processing, can reduce the power consumption of terminal device to the full extent, hold terminal device
It is continuous to use the longer time.
Optionally, as shown in Fig. 2, the notch filter module 2 includes resistance R, inductance L and capacitor C；
The first end of the resistance R is connect with the output end of the digital signal processor 1, the second end of the resistance R
It is connect with the input terminal of the audio-frequency amplifier 3；
The first end of the inductance L is connect with the second end of the resistance R, the second end of the inductance L and the capacitor C
First end connection；
The second end of the capacitor C is grounded；
The terminal device further includes control module 4, and the control module 4 includes first switch unit 41, second switch
Unit 42 and third switch unit 43；
The output end that the first end of the resistance R passes through the first switch unit 41 and the digital signal processor 1
The second end of connection, the resistance R is connect by the second switch unit 42 with the input terminal of the audio-frequency amplifier 3；
The output end of the digital signal processor 1 passes through the third switch unit 43 and the audio-frequency amplifier 3
Input terminal connection；
In the case where the first switch unit 41 and the second switch unit 42 are both turned on, the third switch is single
Member 43 disconnects；
In the case where the first switch unit 41 and the second switch unit 42 disconnect, the third switch is single
Member 43 is connected.
In the embodiment, the function of notch filter may be implemented according to above-mentioned connection type by resistance R, inductance L and capacitor C
Can, it can decay rapidly input signal in some Frequency point, can be at this time provided in an embodiment of the present invention refering to Fig. 3, Fig. 3
Amplitude-frequency characteristic schematic diagram.As shown in figure 3, being f in frequency0Place has carried out notch filter to signal.
Referring again to Fig. 4, Fig. 4 is amplitude-frequency characteristic schematic diagram provided in an embodiment of the present invention.Resistance R, inductance L and capacitor C
After the connection of above-mentioned connection type, resistance R, inductance L and capacitor C can be regarded together as a notch filter, and
The relevant parameter of the notch filter is as follows:
L=120uH, C=200uF are substituted into (1), it can be deduced that:
F can be solved0=1027 (Hz).
R=68m Ω, L=120uH, C=200uF are substituted into (2), it can be deduced that:
Q ≈ 11.4 may further be solved.
Q is quality factor, determines the bandwidth and gain of filtering, and the selectivity of the bigger circuit of Q is better, and passband is narrower,
Gain is higher, i.e. the width of spike and height in Fig. 4.
Above data is substituted into (3) again, can be obtained: f0When=1027Hz, gain 0.035, about -29dB, i.e. Fig. 4
Middle f0Corresponding gain when=1027Hz.Also, in figure 4, it can be seen that in stationary zones, gain 0dB, i.e., without increasing
Benefit；Near 1027Hz, gain is about -29dB.In this way, can accurately to frequency 1KHz or so signal carry out notch filter.
Certainly, particular situation can select according to the actual needs different resistance, inductance or capacitor to come to difference
Frequency signal carry out notch filter, so as to audio system is responded poor frequency audio carry out trap filter
Wave, so as to reduce the power consumption of terminal device.It should be noted that above-mentioned resistance R, inductance L and capacitor C all can be adjustable
Resistance R, inductance L and the capacitor C of section formula.In this way, carrying out different frequent points (frequency for different audios under the same audio system
Band) orientation notch filter, higher power saving income will be obtained.
In the embodiment, digital signal processor 1 can will pass through Digital Signal Processing and pulse width will be modulated
Analog audio signal is inputted.When control module 4 selects normal mode, audio signal can be merely through third switch unit
43 are transmitted to audio-frequency amplifier 3, and are exported by audio-frequency amplifier 3.When control module 4 selects filter patterns, audio signal can
To be transmitted to audio-frequency amplifier 3 merely through first switch unit 41 and second switch unit 42, and exported by audio-frequency amplifier 3.
In this way, different tunnel audio signals can be selected according to the actual needs, it can according to the actual situation
It chooses whether to need to carry out notch filter to audio signal, so as to so that terminal device is more intelligent.
Optionally, as shown in figure 5, the first switch unit 41 is the first PMOS tube Q1, the second switch unit 42
For the second PMOS tube Q2, the third switch unit 43 is NMOS tube Q3；
The source electrode of the first PMOS tube Q1 is connect with the output end of the digital signal processor 1, the first PMOS
The drain electrode of pipe Q1 is connect with the first end of the resistance R；
The source electrode of the second PMOS tube Q2 is connect with the second end of the resistance R, the drain electrode of the second PMOS tube Q2
It is connect with the input terminal of the audio-frequency amplifier 3；
The source electrode of the NMOS tube Q3 is connect with the output end of the digital signal processor 1, the leakage of the NMOS tube Q3
Pole is connect with the input terminal of the audio-frequency amplifier 3；
The grid of the grid of the first PMOS tube Q1, the grid of the second PMOS tube Q2 and the NMOS tube Q3 connects
It is connected to control terminal.
In the embodiment, in the grid of the first PMOS tube Q1, the grid of the second PMOS tube Q2 and described
In the case that the grid of NMOS tube Q3 receives first control signal, led between the source electrode and drain electrode of the first PMOS tube Q1
It is logical, be connected between the source electrode and drain electrode of the second PMOS tube Q2, the source electrode of the NMOS tube Q3 with drain it is separated；
It is connect in the grid, the grid of the second PMOS tube Q2 and the grid of the NMOS tube Q3 of the first PMOS tube Q1
In the case where receiving second control signal, the source electrode and separated, second PMOS tube of drain electrode of the first PMOS tube Q1
The source electrode of Q2 is separated with drain electrode, is connected between the source electrode and drain electrode of the NMOS tube Q3.
In the embodiment, it can be judged whether to need to carry out notch filter by processor.If desired notch filter is carried out,
It so can be from processor to the grid of the first PMOS tube Q1, the grid and the NMOS tube Q3 of the second PMOS tube Q2
Grid send low-potential signal (i.e. first control signal), then being led between the source electrode and drain electrode of the first PMOS tube Q1
It is logical, be connected between the source electrode and drain electrode of the second PMOS tube Q2, the source electrode of the NMOS tube Q3 with drain it is separated, thus
Into filter patterns.
Certainly, if not needing to carry out notch filter, then can be from processor to the grid of the first PMOS tube Q1, institute
The grid of the grid and the NMOS tube Q3 of stating the second PMOS tube Q2 sends high potential signal (i.e. second control signal), then institute
State the separated of the source electrode of the first PMOS tube Q1 and drain electrode, the source electrode of the second PMOS tube Q2 with drain it is separated, it is described
It is connected between the source electrode and drain electrode of NMOS tube Q3, hence into normal mode.
In this way, whether by adjusting control signal trap can be filtered with dynamic select.For example, can be in low battery
Perhaps filter patterns are opened under battery saving mode and open normal mode under high electricity or non-battery saving mode, so that terminal be made to set
It is standby more intelligent.
The grid of the grid of the first PMOS tube Q1, the grid of the second PMOS tube Q2 and the NMOS tube Q3 connects
It is connected to control terminal, so as to carry out different control by a control signal, reduces the complexity of circuit, and can be with
Reduce the probability of circuit error.It should be noted that above-mentioned control terminal can be a port of processor, or it is also possible to
The a port of other controllers except processor.Above-mentioned first control signal and second control signal, can be by handling
The signal that device is sent, or can also be the control signal etc. sent by other controllers except processor, to this this reality
The mode of applying is not construed as limiting.
A kind of terminal device of the embodiment of the present invention, comprising: digital signal processor 1, notch filter module 2 and audio are put
Big device 3, in which: the input terminal of the notch filter module 2 is connect with the output end of the digital signal processor 1, described to fall into
The output end of wave filter module 2 is connect with the input terminal of the audio-frequency amplifier 3, and the notch filter module 2 is used for described
The signal of specific frequency carries out notch filter processing in the audio signal that digital signal processor 1 exports, and the specific frequency is
Power consumption number is greater than the frequency of preset power consumption value in the frequency power consumption profile of audio system, wherein the audio system includes described
The loudspeaking of digital signal processor 1, the audio-frequency amplifier 3, the application processor of the terminal device and the terminal device
Device.In this way, specific frequency in the audio signal that above-mentioned notch filter module 2 can export the digital signal processor 1
Signal carries out notch filter, so as to reduce the power consumption of terminal device.Also, it can also be to the parameter of notch filter module 2
It is adjusted, to guarantee that sense of hearing is unaffected with sound quality.
It is the flow chart of signal processing method provided in an embodiment of the present invention referring to Fig. 6, Fig. 6.As shown in fig. 6, include with
Lower step:
Step 601 carries out at notch filter the signal of specific frequency in the audio signal of digital signal processor output
Reason, the specific frequency are the frequency that power consumption number is greater than preset power consumption value in the frequency power consumption profile of audio system.
In the present embodiment, the signal of specific frequency in above-mentioned audio signal can be audio system under the specific frequency
Respond poor signal.In this way, carrying out trap to the signal of specific frequency in the audio signal of digital signal processor output
Filtering, it is possible to reduce the power consumption of terminal device.
Optionally, the signal of specific frequency carries out trap filter in the audio signal to digital signal processor output
Before wave, the method also includes:
Obtain the frequency power consumption profile.
In the embodiment, the above-mentioned acquisition frequency power consumption profile be can be in intelligent power amplifier and loudspeaker
After the completion of type selecting, the frequency power consumption profile of frequency sweep acquisition is carried out to the mainboard of audio system, or is also possible to directly read
Frequency power consumption profile being saved etc..
In the embodiment, after obtaining the frequency power consumption profile, it can be determined in the frequency power consumption profile
Specific frequency, the specific frequency are the frequency that power consumption number is greater than preset power consumption value in the frequency power consumption profile of audio system.This
Sample, can the bigger audio signal of power consumption number to some frequency subaudio frequency systems carry out notch filter processing, to reduce
The power consumption of terminal device.
Referring again to Fig. 7, Fig. 7 is the relation schematic diagram of frequency provided in an embodiment of the present invention and power consumption.As shown in fig. 7,
Audio system needs to consume higher power consumption when playing the audio of 1.0KHz and 2.8KHz, so as to 1.0KHz or
The audio signal of 2.8KHz carries out notch filter, to reduce the power consumption of terminal device.
Optionally, the specific frequency is the maximum frequency of power consumption number in the frequency power consumption profile.
In the embodiment, the specific frequency is the maximum frequency of power consumption number in the frequency power consumption profile, to specific
The signal of frequency carries out notch filter processing, can reduce the power consumption of terminal device to the full extent, hold terminal device
It is continuous to use the longer time.
Optionally, the signal of specific frequency carries out notch filter in the audio signal to digital signal processor output
Processing, comprising:
In the case where the terminal device is in battery saving mode, to the audio signal of digital signal processor output
The signal of middle specific frequency carries out notch filter processing.
In the embodiment, in the case where the terminal device is in battery saving mode, to the digital signal processor
The signal of specific frequency carries out notch filter processing in the audio signal of output, so as to so that terminal device maintains longer to make
With the time, user is made to have better experience.
Optionally, the method also includes:
In the case where the terminal device is not in the battery saving mode, sound that the digital signal processor is exported
The signal of specific frequency is directly transferred to audio-frequency amplifier in frequency signal.
In the embodiment, in the case where the terminal device is not in the battery saving mode, it can also be interpreted as eventually
End equipment is in normal mode, then in the audio signal that the digital signal processor can be exported specific frequency signal
It is directly transferred to audio-frequency amplifier, does not make notch filter processing.
A kind of signal processing method of the embodiment of the present invention, to specific frequency in the audio signal of digital signal processor output
The signal of rate carries out notch filter processing, and the specific frequency is greater than default for power consumption number in the frequency power consumption profile of audio system
The frequency of power consumption number, to reduce the power consumption of terminal device.
Referring to Fig. 8, a kind of hardware structural diagram of Fig. 8 terminal device of each embodiment to realize the present invention, the end
End equipment 800 includes but is not limited to: radio frequency unit 801, audio output unit 803, input unit 804, passes network module 802
Sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, processor 810 and power supply
811 equal components.It will be understood by those skilled in the art that terminal device structure shown in Fig. 8 is not constituted to terminal device
It limits, terminal device may include perhaps combining certain components or different component cloth than illustrating more or fewer components
It sets.In embodiments of the present invention, terminal device includes but is not limited to mobile phone, tablet computer, laptop, palm PC, vehicle
Mounted terminal, wearable device and pedometer etc..
Wherein, processor 810, it is special in the audio signal that notch filter module exports digital signal processor for controlling
The signal for determining frequency carries out notch filter processing, and the specific frequency is that power consumption number is greater than in the frequency power consumption profile of audio system
The frequency of preset power consumption value, to reduce the power consumption of terminal device.
Optionally, processor 810 are also used to obtain the frequency power consumption profile.
Optionally, the specific frequency is the maximum frequency of power consumption number in the frequency power consumption profile.
Optionally, processor 810 are also used in the case where the terminal device is in battery saving mode, control trap filter
The signal of specific frequency carries out notch filter processing in the audio signal that wave module exports the digital signal processor.
Optionally, processor 810 are also used in the case where the terminal device is not in the battery saving mode, control
The signal of specific frequency in audio signal that the digital signal processor exports is directly transferred to audio amplification by control module
Device.
It should be understood that the embodiment of the present invention in, radio frequency unit 801 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 810 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 801 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 801 can also by wireless communication system and network and other set
Standby communication.
Terminal device provides wireless broadband internet by network module 802 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 803 can be received by radio frequency unit 801 or network module 802 or in memory 809
The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 803 can also provide and end
The relevant audio output of specific function that end equipment 800 executes is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 803 includes loudspeaker, buzzer and receiver etc..
Input unit 804 is for receiving audio or video signal.Input unit 804 may include graphics processor
(Graphics Processing Unit, GPU) 8041 and microphone 8042, graphics processor 8041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 806.Through graphics processor 8041, treated that picture frame can be deposited
Storage is sent in memory 809 (or other storage mediums) or via radio frequency unit 801 or network module 802.Mike
Wind 8042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The format output that mobile communication base station can be sent to via radio frequency unit 801 is converted in the case where telephone calling model.
Terminal device 800 further includes at least one sensor 805, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 8061, and proximity sensor can close when terminal device 800 is moved in one's ear
Display panel 8061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify terminal device posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 805 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared sensor etc. are spent, details are not described herein.
Display unit 806 is for showing information input by user or being supplied to the information of user.Display unit 806 can wrap
Display panel 8061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 8061.
User input unit 807 can be used for receiving the number or character information of input, and generate the use with terminal device
Family setting and the related key signals input of function control.Specifically, user input unit 807 include touch panel 8071 and
Other input equipments 8072.Touch panel 8071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 8071 or in touch panel 8071
Neighbouring operation).Touch panel 8071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects touch operation bring signal, transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 810, receiving area
It manages the order that device 810 is sent and is executed.Furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Seed type realizes touch panel 8071.In addition to touch panel 8071, user input unit 807 can also include other input equipments
8072.Specifically, other input equipments 8072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 8071 can be covered on display panel 8061, when touch panel 8071 is detected at it
On or near touch operation after, send processor 810 to determine the type of touch event, be followed by subsequent processing device 810 according to touching
The type for touching event provides corresponding visual output on display panel 8061.Although in fig. 8, touch panel 8071 and display
Panel 8061 is the function that outputs and inputs of realizing terminal device as two independent components, but in some embodiments
In, can be integrated by touch panel 8071 and display panel 8061 and realize the function that outputs and inputs of terminal device, it is specific this
Place is without limitation.
Interface unit 808 is the interface that external device (ED) is connect with terminal device 800.For example, external device (ED) may include having
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, the port audio input/output (I/O), video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 808 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
By one or more elements that the input received is transferred in terminal device 800 or can be used in 800 He of terminal device
Data are transmitted between external device (ED).
Memory 809 can be used for storing software program and various data.Memory 809 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 809 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 810 is the control centre of terminal device, utilizes each of various interfaces and the entire terminal device of connection
A part by running or execute the software program and/or module that are stored in memory 809, and calls and is stored in storage
Data in device 809 execute the various functions and processing data of terminal device, to carry out integral monitoring to terminal device.Place
Managing device 810 may include one or more processing units；Preferably, processor 810 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 810.
Terminal device 800 can also include the power supply 811 (such as battery) powered to all parts, it is preferred that power supply 811
Can be logically contiguous by power-supply management system and processor 810, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, terminal device 800 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of terminal device, including processor 810, and memory 809 is stored in
On memory 809 and the computer program that can run on the processor 810, the computer program are executed by processor 810
Each process of the above-mentioned signal processing method embodiment of Shi Shixian, and identical technical effect can be reached, to avoid repeating, here
It repeats no more.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned signal processing method embodiment, and energy when being executed by processor
Reach identical technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only
Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation
RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (11)
1. a kind of terminal device characterized by comprising digital signal processor, notch filter module and audio-frequency amplifier,
In:
The input terminal of the notch filter module is connect with the output end of the digital signal processor, the notch filter module
Output end connect with the input terminal of the audio-frequency amplifier, the notch filter module be used for the digital signal processor
The signal of specific frequency carries out notch filter processing in the audio signal of output, and the specific frequency is the frequency function of audio system
Consume the frequency that power consumption number in curve is greater than preset power consumption value, wherein the audio system includes the digital signal processor, institute
State the loudspeaker of audio-frequency amplifier, the application processor of the terminal device and the terminal device.
2. terminal device according to claim 1, which is characterized in that the specific frequency is in the frequency power consumption profile
The maximum frequency of power consumption number.
3. terminal device according to claim 1, which is characterized in that the notch filter module include resistance, inductance and
Capacitor；
The first end of the resistance is connect with the output end of the digital signal processor, the second end of the resistance and the sound
The input terminal of audio amplifier connects；
The first end of the inductance is connect with the second end of the resistance, the first end of the second end of the inductance and the capacitor
Connection；
The second end of the capacitor is grounded；
The terminal device further includes control module, and the control module includes first switch unit, second switch unit and
Three switch units；
The first end of the resistance is connect by the first switch unit with the output end of the digital signal processor, described
The second end of resistance is connect by the second switch unit with the input terminal of the audio-frequency amplifier；
The output end of the digital signal processor is connected by the input terminal of the third switch unit and the audio-frequency amplifier
It connects；
In the case where the first switch unit and the second switch unit are both turned on, the third switch unit is disconnected；
In the case where the first switch unit and the second switch unit disconnect, the third switching means conductive.
4. terminal device according to claim 3, which is characterized in that the first switch unit is the first PMOS tube, institute
Stating second switch unit is the second PMOS tube, and the third switch unit is NMOS tube；
The source electrode of first PMOS tube is connect with the output end of the digital signal processor, the drain electrode of first PMOS tube
It is connect with the first end of the resistance；
The source electrode of second PMOS tube is connect with the second end of the resistance, the drain electrode and the audio of second PMOS tube
The input terminal of amplifier connects；
The source electrode of the NMOS tube is connect with the output end of the digital signal processor, the drain electrode of the NMOS tube and the sound
The input terminal of audio amplifier connects；
The grid of the grid of first PMOS tube, the grid of second PMOS tube and the NMOS tube is connected to control
End.
5. a kind of signal processing method is applied to terminal device described in any one of Claims 1-4, which is characterized in that institute
The method of stating includes:
Notch filter processing, the specific frequency are carried out to the signal of specific frequency in the audio signal of digital signal processor output
Rate is the frequency that power consumption number is greater than preset power consumption value in the frequency power consumption profile of audio system.
6. according to the method described in claim 5, it is characterized in that, in the audio signal to digital signal processor output
Before the signal of middle specific frequency carries out notch filter, the method also includes:
Obtain the frequency power consumption profile.
7. according to the method described in claim 5, it is characterized in that, the specific frequency is power consumption in the frequency power consumption profile
It is worth maximum frequency.
8. according to the method described in claim 5, it is characterized in that, in the audio signal to digital signal processor output
The signal of specific frequency carries out notch filter processing, comprising:
In the case where the terminal device is in battery saving mode, to special in the audio signal of digital signal processor output
The signal for determining frequency carries out notch filter processing.
9. according to the method described in claim 8, it is characterized in that, the method also includes:
In the case where the terminal device is not in the battery saving mode, the audio that the digital signal processor is exported is believed
The signal of specific frequency is directly transferred to audio-frequency amplifier in number.
10. a kind of terminal device, which is characterized in that including processor, memory and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 5 to 9 is realized when the computer program is executed by the processor
Any one of described in signal processing method the step of.
11. a kind of computer readable storage medium, which is characterized in that store computer journey on the computer readable storage medium
Sequence, the signal processing method as described in any one of claim 5 to 9 is realized when the computer program is executed by processor
Step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653130.XA CN109413728B (en) | 2018-12-29 | 2018-12-29 | Terminal equipment and signal processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653130.XA CN109413728B (en) | 2018-12-29 | 2018-12-29 | Terminal equipment and signal processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109413728A true CN109413728A (en) | 2019-03-01 |
| CN109413728B CN109413728B (en) | 2022-01-04 |
Family
ID=65461760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811653130.XA Active CN109413728B (en) | 2018-12-29 | 2018-12-29 | Terminal equipment and signal processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109413728B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112969127A (en) * | 2021-02-19 | 2021-06-15 | 联想(北京)有限公司 | Electronic equipment and audio output method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050013451A1 (en) * | 2003-07-18 | 2005-01-20 | Finn Brian Michael | Device and method for operating voice-supported systems in motor vehicles |
| CN102474682A (en) * | 2009-07-17 | 2012-05-23 | 雅马哈株式会社 | Howling canceller |
| US9386371B2 (en) * | 2012-06-08 | 2016-07-05 | Apple Inc. | Psychoacoustic adaptive notch filtering |
| CN105992097A (en) * | 2015-01-29 | 2016-10-05 | 联想(北京)有限公司 | Audio processing method and device |
| CN106797234A (en) * | 2016-09-09 | 2017-05-31 | 香港应用科技研究院有限公司 | Interference Detection and elimination for power line communication |
| CN108449499A (en) * | 2018-03-12 | 2018-08-24 | 广东欧珀移动通信有限公司 | Voice communication data processing method, device, storage medium and mobile terminal |
-
2018
- 2018-12-29 CN CN201811653130.XA patent/CN109413728B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050013451A1 (en) * | 2003-07-18 | 2005-01-20 | Finn Brian Michael | Device and method for operating voice-supported systems in motor vehicles |
| CN102474682A (en) * | 2009-07-17 | 2012-05-23 | 雅马哈株式会社 | Howling canceller |
| US9386371B2 (en) * | 2012-06-08 | 2016-07-05 | Apple Inc. | Psychoacoustic adaptive notch filtering |
| CN105992097A (en) * | 2015-01-29 | 2016-10-05 | 联想(北京)有限公司 | Audio processing method and device |
| CN106797234A (en) * | 2016-09-09 | 2017-05-31 | 香港应用科技研究院有限公司 | Interference Detection and elimination for power line communication |
| CN108449499A (en) * | 2018-03-12 | 2018-08-24 | 广东欧珀移动通信有限公司 | Voice communication data processing method, device, storage medium and mobile terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112969127A (en) * | 2021-02-19 | 2021-06-15 | 联想(北京)有限公司 | Electronic equipment and audio output method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109413728B (en) | 2022-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108551631A (en) | A kind of sound quality compensation method and mobile terminal | |
| CN109547054A (en) | Signal control circuit, terminal device and signal control method | |
| CN108108007A (en) | A kind of processing method and mobile terminal for reducing power consumption | |
| CN108491123A (en) | A kind of adjusting application program image target method and mobile terminal | |
| CN109768810A (en) | A kind of signal processing circuit, terminal device and signal processing method | |
| CN108492246A (en) | A kind of image processing method, device and mobile terminal | |
| CN110209313A (en) | Icon moving method and terminal device | |
| CN109062411A (en) | A kind of screen luminance adjustment method and mobile terminal | |
| CN110035149A (en) | A kind of multiple antennas optimization method and mobile terminal | |
| CN110045807A (en) | A kind of voltage control method and terminal | |
| CN108509141A (en) | A kind of generation method and mobile terminal of control | |
| CN109040449A (en) | A kind of volume adjusting method and terminal device | |
| CN109388223A (en) | One kind putting out screen display method, apparatus and terminal | |
| CN109558046A (en) | A kind of information display method and terminal device | |
| CN110018805A (en) | A kind of display control method and mobile terminal | |
| CN108898555A (en) | A kind of image processing method and terminal device | |
| CN108600544A (en) | A kind of Single-hand control method and terminal | |
| CN109547894A (en) | A kind of electro-acoustic element amplitude method of adjustment, device and mobile terminal | |
| CN109542572A (en) | A kind of interface display method and mobile terminal | |
| CN109002245A (en) | A kind of operating method and mobile terminal of application interface | |
| CN108649716A (en) | A kind of method for transmitting signals, receiving terminal, transmitting terminal and terminal device | |
| CN110312035A (en) | A kind of control method of terminal, mobile terminal and computer readable storage medium | |
| CN110058837A (en) | A kind of audio-frequency inputting method and terminal | |
| CN109782970A (en) | A kind of display methods and terminal | |
| CN109343811A (en) | A kind of display adjusting method and terminal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |