CN106851481B - State control method, state control module and control system of HAC power amplifier - Google Patents
State control method, state control module and control system of HAC power amplifier Download PDFInfo
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- CN106851481B CN106851481B CN201710161449.XA CN201710161449A CN106851481B CN 106851481 B CN106851481 B CN 106851481B CN 201710161449 A CN201710161449 A CN 201710161449A CN 106851481 B CN106851481 B CN 106851481B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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Abstract
The invention discloses a state control method, a state control module and a control system of an HAC power amplifier, wherein the method comprises the following steps: transmitting the ON OR OFF value of the HAC power amplifier controlled by menu operation to the bottom layer code through a KCTRL command; the bottom layer records the ON OR OFF state through the newly added state value; and controlling the opening or closing of the HAC power amplifier according to the opening and closing state of the audio receiver and the newly added state value. The mobile phone is provided with the HAC function, so that the mobile phone can be compatible with the hearing aid, and the mobile phone is convenient for users with hearing impairment to wear the hearing aid; and the mobile phone is provided with an HAC power amplifier, the power amplifier can further enhance the sound effect, and the mobile phone aims at users with hearing impairment, so that the sound enhancement effect is more obvious.
Description
Technical Field
The invention relates to the field of mobile terminals, in particular to a state control method, a state control module and a control system of an HAC power amplifier.
Background
Radio waves transmitted by the mobile phone form an electromagnetic field around the antenna, so that a user wearing the hearing aid hears a buzzing sound, and the mobile phone and the hearing aid cannot be used in a compatible mode. The general low-end mobile phone models adopt M3 coils for compatibility, and some mobile phones have HAC functions. The HAC is a short term for Hearing Aid Compatibility, and is a standard for a mobile phone to support Hearing Aid Compatibility, and the mobile phone with the HAC function is used by a user with Hearing impairment and needing to wear a Hearing Aid. However, in the prior art, the mobile phone with the HAC function is not equipped with a power amplification function, and the audio playing sound is small.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a state control method, a state control module and a control system for an HAC power amplifier, which solve the technical problem of small audio playing sound of a mobile phone with an HAC function in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a state control method of an HAC power amplifier is disclosed, wherein the method comprises the following steps:
step A, transmitting an ON OR OFF value of a menu operation control HAC power amplifier to a bottom layer code through a KCTRL command;
b, recording the ON OR OFF state of the bottom layer through a newly-added state value;
and step C, controlling the opening or closing of the HAC power amplifier according to the opening and closing state of the audio receiver and the newly added state value.
According to the state control method of the HAC power amplifier, a KCTRL command is newly added in the ALSA setting.
The state control method of the HAC power amplifier comprises the following specific steps:
c1, driving and controlling the on or off state of the audio receiver;
c2, when the audio receiver is closed, the HAC power amplifier is closed;
and C3, when the audio receiver is started, the HAC power amplifier is started OR closed according to the recorded ON OR OFF state of the newly added state value.
The state control method of the HAC power amplifier, wherein the step C3 specifically includes:
c31, when the newly added state value is recorded as ON state, starting HAC power amplifier;
and C32, when the new state value is recorded as OFF state, closing HAC power amplifier.
The state control method of the HAC power amplifier is characterized in that the ON OR OFF value is a logic value, the ON state is realized when the logic value is 1, and the OFF state is realized when the logic value is 0.
A state control module of a HAC power amplifier, wherein the state control module comprises:
a transfer unit for transferring the ON OR OFF value of the menu operation control to the underlying code by a KCTRL command;
the recording unit is used for recording the ON OR OFF state of the bottom layer through the newly added state value;
and the control unit is used for controlling the opening or closing of the HAC power amplifier according to the opening and closing state of the audio receiver and the newly added state value.
The state control module of HAC power amplifier, wherein, the control unit specifically includes:
the switching subunit is used for driving and controlling the opening or closing state of the audio receiver;
the first control subunit is used for closing the HAC power amplifier when the audio receiver is closed;
and the second control subunit is used for turning ON OR OFF the HAC power amplifier according to the state of ON OR OFF recorded by the newly added state value when the audio receiver is turned ON.
The state control module of HAC power amplifier, characterized in that, the second control subunit specifically includes: when the newly added state value is recorded as an ON state, starting an HAC power amplifier; and when the newly added state value is recorded as the OFF state, closing the HAC power amplifier.
A control system with a HAC power amplifier, wherein the system comprises: the high-frequency modem is used for modulating the low-frequency signal into a high-frequency signal for wireless transmission; the audio digital-to-analog conversion module is used for converting the digital signal into an analog signal; an audio receiver for receiving an audio signal; the HAC power amplifier is used for amplifying the weak electric signals; a HAC coil for transmitting an electrical signal to a load through resonance; the state control module is used for controlling the audio receiver and the HAC power amplifier to be turned on or turned off;
the high-frequency modem, the audio digital-to-analog conversion module and the audio receiver are sequentially connected; the HAC power amplifier is connected with the audio digital-to-analog conversion module; the HAC coil is connected with an HAC power amplifier; the state control module is connected with the audio receiver and the HAC power amplifier;
the audio digital signal modulates a low-frequency signal into a high-frequency signal through a high-frequency modem, the audio digital-to-analog conversion module converts the high-frequency signal into an analog signal and transmits the analog signal to an audio receiver, and the state control module and the audio receiver control the starting state of the HAC power amplifier; when the HAC power amplifier is started, the analog signal is amplified through the HAC power amplifier and transmitted to the load through the HAC coil to be played.
The control system with the HAC power amplifier is characterized in that the load is a hearing aid, and the HAC coil transmits signals to the hearing aid in a resonance mode.
According to the state control method, the state control module and the control system of the HAC power amplifier, the mobile phone is provided with the HAC function, so that the mobile phone can be compatible with a hearing aid, and a user wearing the hearing aid with hearing disorder can use the mobile phone conveniently; the mobile phone is provided with the HAC power amplifier, the power amplifier can further enhance the sound effect, and the mobile phone aims at users with hearing impairment, so that the sound enhancement effect is more obvious.
Drawings
Fig. 1 is a flowchart of a state control method of a HAC power amplifier provided by the invention.
Fig. 2 is a flowchart of an embodiment of a method for controlling a state of an HAC power amplifier according to the present invention.
Fig. 3 is a structural block diagram of a state control module of the HAC power amplifier provided by the invention.
Fig. 4 is a structural block diagram of the HAC power amplifier control system provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention adds a power amplifier function in a mobile phone with an HAC function, and controls the state of the HAC power amplifier through a driver software, fig. 1 is a flow chart of a state control method of the HAC power amplifier provided by the present invention, as shown in fig. 1, the method specifically includes:
step S1, transmitting the ON OR OFF state value of the HAC power amplifier controlled by the menu operation through the KCTRL command to the bottom layer code;
step S2, recording an ON OR OFF state value by the bottom layer through a newly-added state value;
and step S3, controlling the opening or closing of the HAC power amplifier according to the opening and closing state of the audio receiver and the newly added state value.
Control of numerical value transfer is performed by a KCTRL command, which is a program named "AUD _ HAC _ hardway _ Switch", and therefore, a KCTRL command, which is a commonly used control method for the ALSA audio system, is newly added in the ALSA setting. The ALSA (Advanced Linux Sound Architecture) is an Advanced Linux Sound Architecture that provides support for the digital interface of audio and music devices on a Linux operating system.
After the setting is finished, the steps of controlling through the operation of the mobile phone menu are as follows:
when a user operates a menu, different menu keys correspond to different ON OR OFF values, the KCTRL command is driven to run after the ON OR OFF values are input, and the corresponding ON OR OFF values are transmitted to the KERNEL bottom layer codes. Kernel is an operating system Kernel, which consists of the parts of the operating system that manage memory, files, peripherals, and system resources, typically runs processes, and provides inter-process communication. And the KERNEL bottom layer records an ON OR OFF state value through a newly added state value mhac _ hn _ enable, wherein the ON OR OFF state value is a logic value, and represents an ON state when the logic value is 1 and represents an OFF state when the logic value is 0.
After the user performs control through menu operation, the opening or closing of the HAC power amplifier needs to be further controlled through the opening and closing state of the audio receiver and the newly added state value. And when the audio receiver is driven, judging the opening or closing state of the HAC power amplifier. Driving and controlling the on or off state of the audio receiver; when the audio receiver is closed, the HAC power amplifier is closed; and when the audio receiver is started, the HAC power amplifier is started OR closed according to the recorded ON OR OFF state of the newly added state value. When the newly added state value is recorded as an ON state, starting an HAC power amplifier; and when the newly added state value is recorded as the OFF state, closing the HAC power amplifier. Preferably, the chip model of the HAC power amplifier is AW8155 FCR.
As shown in fig. 2, a flowchart of a specific embodiment of the method for controlling the state of the HAC power amplifier provided by the present invention includes the following specific steps:
s11, the mobile phone receives a menu operation instruction;
s12, recording the new state value of the ON OR OFF state value of menu operation control;
s13, judging the open-close state of the audio receiver; when the audio receiver is turned off, proceed to step S14; when the audio receiver is turned on, proceed to step S14';
s14, closing the HAC power amplifier;
s14', judging the new state value; when the new state value is ON, go to step S15; when the new state value is OFF, the process returns to S14.
And S15, starting the HAC power amplifier.
Based on the state control method of the HAC power amplifier, the present invention further provides a state control module of the HAC power amplifier, as shown in fig. 3, which is a structural block diagram of the state control module of the HAC power amplifier of the present invention, where the state control module 10 is configured to control the audio receiver and the HAC power amplifier to be turned on or off, and specifically includes:
a transfer unit 100 for transferring the ON OR OFF value of the menu operation control into the underlying code by a KCTRL command; the recording unit 200 is used for recording the ON OR OFF state of the bottom layer through the newly added state value; and the control unit 300 is configured to control the HAC power amplifier to be turned on or off according to the on/off state of the audio receiver and the new state value.
The control unit 300 specifically includes:
the switching subunit is used for driving and controlling the opening or closing state of the audio receiver; the first control subunit is used for closing the HAC power amplifier when the audio receiver is closed; and the second control subunit is used for turning ON OR OFF the HAC power amplifier according to the state of ON OR OFF recorded by the newly added state value when the audio receiver is turned ON.
The second control subunit specifically includes: when the newly added state value is recorded as an ON state, starting an HAC power amplifier; and when the newly added state value is recorded as the OFF state, closing the HAC power amplifier.
The state control module is used for controlling the audio receiver and the HAC power amplifier to be turned on or turned off, and based on the state control module, the invention also provides a control system with the HAC power amplifier, and as shown in fig. 4, the invention is a structural block diagram of the control system with the HAC power amplifier. Referring to fig. 4, the system includes: the device comprises a state control module 10, a high-frequency modem 20, an audio digital-to-analog conversion module 30, an audio receiver 40, an HAC power amplifier 50 and an HAC coil 60.
A high frequency modem 20 for modulating the low frequency signal into a high frequency signal for wireless transmission; an audio digital-to-analog conversion module 30, configured to convert a digital signal into an analog signal; an audio receiver 40 for receiving an audio signal; the HAC power amplifier 50 is used for amplifying the weak electric signals; a HAC coil 60 for transmitting an electrical signal to a load through resonance; and the state control module is used for controlling the audio receiver and the HAC power amplifier to be opened or closed.
The high-frequency modem 20, the audio digital-to-analog conversion module 30 and the audio receiver 40 are connected in sequence; the HAC power amplifier 50 is connected with the audio digital-to-analog conversion module 30; the HAC coil 60 is connected with the HAC power amplifier 50; the state control module 10 is connected with the audio receiver 40 and the HAC power amplifier 50.
When a user makes a call by using a mobile phone with the HAC power amplification function, the audio digital signal modulates a low-frequency signal into a high-frequency signal through a high-frequency modem, the audio digital-to-analog conversion module modulates the high-frequency audio digital signal into an analog signal and transmits the analog signal to an audio receiver, and the state control module and the audio receiver control the starting state of the HAC power amplification; when the HAC power amplifier is started, the analog signal is amplified through the HAC power amplifier and transmitted to the load through the HAC coil to be played. The load is a hearing aid and the HAC coil transmits the signal to the hearing aid by means of resonance.
According to the state control method, the state control module and the control system of the HAC power amplifier, the mobile phone is provided with the HAC function, so that the mobile phone can be compatible with a hearing aid, and a user wearing the hearing aid with hearing disorder can use the mobile phone conveniently; the mobile phone is provided with the HAC power amplifier, the power amplifier can further enhance the sound effect, and the mobile phone aims at users with hearing impairment, so that the sound enhancement effect is more obvious.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited in its application to the details of the examples set forth above, but that modifications and variations may be effected therein by those of ordinary skill in the art in light of the above teachings, and that all such modifications and variations are intended to be encompassed by the present invention as defined in the appended claims.
Claims (8)
1. A state control method of an HAC power amplifier is characterized by comprising the following steps:
step A, transmitting an ON OR OFF value of a menu operation control HAC power amplifier to a bottom layer code through a KCTRL command; b, recording the ON OR OFF state of the bottom layer through a newly-added state value;
step C, controlling the opening or closing of the HAC power amplifier according to the opening and closing state of the audio receiver and the newly added state value;
the step C specifically comprises the following steps:
c1, driving and controlling the on or off state of the audio receiver;
c2, when the audio receiver is closed, the HAC power amplifier is closed;
and C3, when the audio receiver is started, the HAC power amplifier is started OR closed according to the recorded ON OR OFF state of the newly added state value.
2. The state control method of the HAC power amplifier according to claim 1, wherein a KCTRL command is newly added in the ALSA setting.
3. The state control method of the HAC power amplifier according to claim 2, wherein the step C3 specifically includes:
c31, when the newly added state value is recorded as ON state, starting HAC power amplifier;
and C32, when the new state value is recorded as OFF state, closing HAC power amplifier.
4. The state control method of an HAC power amplifier according to claim 1, wherein the ON OR OFF value is a logic value, and is an ON state when the logic value is 1, and is an OFF state when the logic value is 0.
5. The state control module of HAC power amplifier is characterized in that the state control module comprises:
a transfer unit for transferring the ON OR OFF value of the menu operation control to the underlying code by a KCTRL command;
the recording unit is used for recording the ON OR OFF state of the bottom layer through the newly added state value;
the control unit is used for controlling the opening or closing of the HAC power amplifier according to the opening and closing state of the audio receiver and the newly added state value;
the control unit includes:
the switching subunit is used for driving and controlling the opening or closing state of the audio receiver;
the first control subunit is used for closing the HAC power amplifier when the audio receiver is closed;
and the second control subunit is used for turning ON OR OFF the HAC power amplifier according to the state of ON OR OFF recorded by the newly added state value when the audio receiver is turned ON.
6. The state control module of an HAC power amplifier according to claim 5, wherein the second control subunit comprises: when the newly added state value is recorded as an ON state, starting an HAC power amplifier; and when the newly added state value is recorded as the OFF state, closing the HAC power amplifier.
7. A control system with a HAC power amplifier, the system comprising: the high-frequency modem is used for modulating the low-frequency signal into a high-frequency signal for wireless transmission; the audio digital-to-analog conversion module is used for converting the digital signal into an analog signal; an audio receiver for receiving an audio signal; the HAC power amplifier is used for amplifying the weak electric signals; a HAC coil for transmitting an electrical signal to a load through resonance; the state control module according to any one of claims 5-6, for controlling the audio receiver and the HAC power amplifier to turn on or off;
the high-frequency modem, the audio digital-to-analog conversion module and the audio receiver are sequentially connected; the HAC power amplifier is connected with the audio digital-to-analog conversion module; the HAC coil is connected with an HAC power amplifier; the state control module is connected with the audio receiver and the HAC power amplifier;
the audio digital signal modulates a low-frequency signal into a high-frequency signal through a high-frequency modem, the audio digital-to-analog conversion module converts the high-frequency signal into an analog signal and transmits the analog signal to an audio receiver, and the state control module and the audio receiver control the starting state of the HAC power amplifier; when the HAC power amplifier is started, the analog signal is amplified through the HAC power amplifier and transmitted to the load through the HAC coil to be played.
8. The control system with HAC power amplifier of claim 7, wherein the load is a hearing aid and the HAC coil transmits the signal to the hearing aid by resonance.
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Families Citing this family (4)
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| CN107135453B (en) * | 2017-06-16 | 2020-05-12 | 江苏沃顿数字技术有限公司 | Signal processing method and terminal |
| CN107786741B (en) * | 2017-10-20 | 2021-01-08 | 惠州Tcl移动通信有限公司 | HAC system based on mobile terminal and implementation method thereof |
| CN109587340B (en) * | 2018-12-20 | 2021-06-15 | 努比亚技术有限公司 | Method for realizing hearing aid based on mobile terminal, mobile terminal and storage medium |
| CN110650413B (en) * | 2019-08-29 | 2021-08-06 | 努比亚技术有限公司 | Hearing aid implementation circuit and method and mobile terminal |
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