CN113115164A - Conversation bluetooth headset based on ANC falls and makes an uproar - Google Patents
Conversation bluetooth headset based on ANC falls and makes an uproar Download PDFInfo
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
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- G—PHYSICS
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- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
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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
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
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Abstract
The invention discloses a conversation Bluetooth earphone based on ANC noise reduction, belongs to the field of wireless communication, and relates to a conversation noise reduction technology, wherein when the conversation is in a conversation mode, a scene switching module judges a conversation scene, switches the Bluetooth earphone to the corresponding conversation scene, and simultaneously sends the judged conversation scene to a data input module; the data input module sends a call scene signal and a data extraction signal to the data storage module; feeding back a noise spectrum corresponding to a call scene to a data input module, and sending the noise spectrum corresponding to the call scene to a processor by the data input module; and after the processor receives the noise frequency spectrum corresponding to the call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed. The noise reduction can be carried out differently between the functional mode and the conversation scene, the noise reduction aiming at the difference between the different functional modes and the conversation scene is realized, and the most comfortable experience is given to the user using the Bluetooth conversation earphone to the maximum extent.
Description
Technical Field
The invention belongs to the field of wireless communication, relates to a communication noise reduction technology, and particularly relates to an ANC noise reduction-based communication Bluetooth headset.
Background
The Bluetooth earphone applies the Bluetooth technology to the hands-free earphone, so that users can avoid annoying wiring stumbling and can easily talk in various ways. Since the advent of bluetooth headsets, it has been a good tool for the mobile commerce industry to increase efficiency. Bluetooth is a low-cost, high-capacity short-range wireless communication specification. A Bluetooth notebook computer is a notebook computer with a Bluetooth wireless communication function.
The patent with publication number CN111212353B discloses an ES09ANC noise reduction bluetooth headset and a headset box thereof, which includes: the device comprises a noise reduction chip, a receiving microphone, a noise reduction battery, an earphone battery, a Bluetooth module, an audio module and a control chip; the noise reduction chip adopts an ANC digital active noise reduction technology, external noise is received through the receiving microphone, when the external noise is detected, a reverse noise loop is formed inside and is overlapped with the external noise, and the appearance that the noise finally enters the ear is reduced; the battery of making an uproar is used for reverse noise return circuit power supply, the earphone battery is used for making an uproar chip, receiving microphone, bluetooth module, audio module, the control unit power supply fall, when detecting that external noise is greater than the settlement threshold value, start the battery of making an uproar falls and supplies power. The TWS automatic antithetical couplet and high-fidelity sound quality technology is humanized; can overlength broadcast time and stand-by time, can circulate and charge for the earphone many times, satisfy outdoor business trip user demand.
Most of communication Bluetooth earphones in the prior art have a Bluetooth communication function or a simple noise reduction function, and the Bluetooth communication earphones connected with the equipment do not perform distinguishing noise reduction according to the function mode of the Bluetooth communication earphones and a communication scene, so that the distinguishing noise reduction aiming at different function modes and communication scenes is realized.
Therefore, an ANC noise reduction-based talking Bluetooth headset is provided.
Disclosure of Invention
In order to solve the problems existing in the scheme, the invention provides the communication Bluetooth headset based on ANC noise reduction. The system comprises a power supply module, a data input module, a processor, a data acquisition module, a scene switching module, a mode judgment module, a positioning module and a data storage module; when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset; when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module; when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module; after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor; and after the processor receives the noise frequency spectrum corresponding to the call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
The purpose of the invention can be realized by the following technical scheme:
a conversation Bluetooth headset based on ANC noise reduction comprises a power supply module, a data input module, a processor, a data acquisition module, a scene switching module, a mode judging module, a positioning module and a data storage module;
the power supply module is used for providing power support for the data input module, the processor, the data acquisition module, the scene switching module, the mode judgment module and the data storage module;
the data input module is used for providing data support for the ANC noise reduction-based communication Bluetooth headset;
the processor is used for processing the data input by the data input module;
the data acquisition module is used for acquiring noise of a call scene where the call Bluetooth headset is located;
the scene switching module is used for judging and switching conversation scenes of the conversation Bluetooth headset;
the mode judging module is used for judging the functional mode of the communication Bluetooth headset, and comprises a communication mode, a music playing mode and a starting standby mode;
the data storage module is used for storing data generated in the process of realizing the function of the communication Bluetooth headset;
specifically, the data acquisition module acquires noise of the talking Bluetooth headset, wherein the acquired noise comprises all noises judged as noise, and the noise acquired by the data acquisition module is sent to the data storage module;
when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset;
when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module;
when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module;
after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor;
and after the processor receives the noise frequency spectrum corresponding to the call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
Further, the data acquisition module is used for collecting noise existing in a conversation scene where the conversation bluetooth headset is located, and specifically, the working process of the data acquisition module includes the following steps:
step S1: the mode judging module judges the functional mode, and when the mode is judged to be the call mode, the mode judging module sends a call mode signal to the data acquisition module;
step S2: the data acquisition module acquires a voice frequency spectrum of a calling user transmitted from the inside of the communication Bluetooth headset, and simultaneously acquires the voice frequency spectrum in the external environment;
step S3: the data acquisition module simultaneously transmits the sound frequency spectrum of the called user and the sound frequency spectrum in the external environment to the processor;
step S4: the processor compares the sound frequency spectrum of the calling user with the sound frequency spectrum in the external environment, and when the sound frequency spectrum in the external environment interferes with the sound frequency spectrum of the calling user, the corresponding sound frequency is judged to be the noise frequency;
step S5: the method comprises the steps of collecting the noise frequency of an incoming user, sending the noise frequency collected for many times to a data storage module, and binding the noise frequency collected for many times with a call mode by the data storage module.
Further, the mode determination module is configured to determine and process a functional mode in which the bluetooth headset is located, and a specific process of determining the functional mode by the mode determination module includes the following steps:
when the conversation Bluetooth earphone is in a power-on state, the mode judging module judges the functional mode;
the mode judging module sends a data connection acquisition signal to the data acquisition module, and the data acquisition module acquires the connection state of the conversation Bluetooth headset and the equipment; the connection state comprises connected and unconnected; the connected connection comprises a call connection and an audio connection;
the data acquisition module sends the acquired connection state to the mode judgment module;
when the connection state received by the mode judging module is not connected, the connection state indicates that the conversation Bluetooth earphone is not connected with the equipment, and the mode judging module judges that the function mode of the conversation Bluetooth earphone is a starting standby mode;
when the connection state received by the mode judging module is call connection, the call connection between the call Bluetooth earphone and the equipment is represented, and the mode judging module judges that the function mode of the call Bluetooth earphone is a call mode;
when the connection state received by the mode judging module is audio connection, the connection state indicates that the communication Bluetooth headset is connected with the equipment audio, and then the mode judging module judges that the function mode of the communication Bluetooth headset is a music playing mode.
Further, the scene switching module is configured to determine a call scene where the bluetooth headset is located, and a process of determining the call scene by the scene switching module specifically includes the following steps:
the scene switching module counts and classifies different positions, and respectively marks the calling scene types as i, i is 1 and 2 … … n; wherein i is a positive integer;
when the communication Bluetooth headset is in a starting state and the mode judging module judges that the communication mode is the communication mode, the scene switching module sends a scene positioning signal to the positioning module, and after the positioning module receives the scene positioning signal, the positioning module positions the communication Bluetooth headset;
the positioning module sends the position of the communication Bluetooth headset to the scene switching module; after receiving the position of the Bluetooth headset sent by the positioning module, the scene switching module compares the position with the position stored in the data storage module and matches the position;
and feeding back the position successfully matched to the scene switching module, and judging the scene type by the scene switching module according to the matching result.
Further, the processor is configured to process data input by the data input module, and specifically, the ANC denoising process of the processor includes the following steps:
the method comprises the following steps: when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset;
step two: when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module;
when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module;
after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor;
after the processor receives a noise frequency spectrum corresponding to a call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and ANC noise reduction is further completed;
step three: when the Bluetooth headset is in a music playing mode, the scene switching module judges a music playing scene and switches the Bluetooth headset to the corresponding music playing scene; the scene switching module sends the music playing scene to the processor;
and after the processor receives the noise frequency spectrum corresponding to the music playing scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the Bluetooth communication earphone, when the Bluetooth earphone is in a starting state and is in Bluetooth connection with equipment, the mode judgment module judges the function mode of the communication Bluetooth earphone; when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module; when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module; after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor; and after the processor receives the noise frequency spectrum corresponding to the call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed. The noise reduction can be carried out differently between the functional mode and the conversation scene, the noise reduction aiming at the difference between the different functional modes and the conversation scene is realized, and the most comfortable experience is given to the user using the Bluetooth conversation earphone to the maximum extent.
2. The invention is provided with a mode judging module, the mode judging module sends a data connection acquisition signal to a data acquisition module, and the data acquisition module acquires the connection state of a conversation Bluetooth headset and equipment; the connection state comprises connected and unconnected; the connected connection comprises a call connection and an audio connection; the data acquisition module sends the acquired connection state to the mode judgment module; when the connection state received by the mode judging module is not connected, the connection state indicates that the conversation Bluetooth earphone is not connected with the equipment, and the mode judging module judges that the function mode of the conversation Bluetooth earphone is a starting standby mode; when the connection state received by the mode judging module is call connection, the call connection between the call Bluetooth earphone and the equipment is represented, and the mode judging module judges that the function mode of the call Bluetooth earphone is a call mode; when the connection state received by the mode judging module is audio connection, the connection state indicates that the communication Bluetooth headset is connected with the equipment audio, and then the mode judging module judges that the function mode of the communication Bluetooth headset is a music playing mode. And judging the function mode of the Bluetooth communication earphone, and further providing the function mode for distinguishing noise reduction to finish the active noise reduction of the Bluetooth earphone.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic block diagram of a bluetooth headset for conversation based on ANC noise reduction according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a bluetooth headset for conversation based on ANC noise reduction includes a power module, a data input module, a processor, a data acquisition module, a scene switching module, a mode determination module, a positioning module, and a data storage module;
the power supply module is used for providing power support for the data input module, the processor, the data acquisition module, the scene switching module, the mode judgment module and the data storage module;
the data input module is used for providing data support for the ANC noise reduction-based communication Bluetooth headset;
the processor is used for processing the data input by the data input module;
the data acquisition module is used for acquiring noise of a call scene where the call Bluetooth headset is located;
the scene switching module is used for judging and switching conversation scenes of the conversation Bluetooth headset;
the mode judging module is used for judging the functional mode of the communication Bluetooth headset, and comprises a communication mode, a music playing mode and a starting standby mode;
the data storage module is used for storing data generated in the process of realizing the function of the communication Bluetooth headset;
specifically, the data acquisition module acquires noise of the talking Bluetooth headset, wherein the acquired noise comprises all noises judged as noise, and the noise acquired by the data acquisition module is sent to the data storage module;
when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset;
when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module;
when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module;
after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor;
and after the processor receives the noise frequency spectrum corresponding to the call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
The data acquisition module is used for acquiring noise existing in a call scene where the call Bluetooth headset is located, and specifically, the working process of the data acquisition module comprises the following steps:
step S1: the mode judging module judges the functional mode, and when the mode is judged to be the call mode, the mode judging module sends a call mode signal to the data acquisition module;
step S2: the data acquisition module acquires a voice frequency spectrum of a calling user transmitted from the inside of the communication Bluetooth headset, and simultaneously acquires the voice frequency spectrum in the external environment;
step S3: the data acquisition module simultaneously transmits the sound frequency spectrum of the called user and the sound frequency spectrum in the external environment to the processor;
step S4: the processor compares the sound frequency spectrum of the calling user with the sound frequency spectrum in the external environment, and when the sound frequency spectrum in the external environment interferes with the sound frequency spectrum of the calling user, the corresponding sound frequency is judged to be the noise frequency;
step S5: the method comprises the steps of collecting the noise frequency of an incoming user, sending the noise frequency collected for many times to a data storage module, and binding the noise frequency collected for many times with a call mode by the data storage module.
The mode judging module is used for judging and processing the functional mode of the communication Bluetooth headset, and the specific process of judging the functional mode by the mode judging module comprises the following steps:
when the conversation Bluetooth earphone is in a power-on state, the mode judging module judges the functional mode;
the mode judging module sends a data connection acquisition signal to the data acquisition module, and the data acquisition module acquires the connection state of the conversation Bluetooth headset and the equipment; the connection state comprises connected and unconnected; the connected connection comprises a call connection and an audio connection;
the data acquisition module sends the acquired connection state to the mode judgment module;
when the connection state received by the mode judging module is not connected, the connection state indicates that the conversation Bluetooth earphone is not connected with the equipment, and the mode judging module judges that the function mode of the conversation Bluetooth earphone is a starting standby mode;
when the connection state received by the mode judging module is call connection, the call connection between the call Bluetooth earphone and the equipment is represented, and the mode judging module judges that the function mode of the call Bluetooth earphone is a call mode;
when the connection state received by the mode judging module is audio connection, the connection state indicates that the communication Bluetooth headset is connected with the equipment audio, and then the mode judging module judges that the function mode of the communication Bluetooth headset is a music playing mode.
The scene switching module is used for judging a call scene where the call Bluetooth headset is located, and the process of judging the call scene by the scene switching module specifically comprises the following steps:
the scene switching module counts and classifies different positions, and respectively marks the calling scene types as i, i is 1 and 2 … … n; wherein i is a positive integer;
when the communication Bluetooth headset is in a starting state and the mode judging module judges that the communication mode is the communication mode, the scene switching module sends a scene positioning signal to the positioning module, and after the positioning module receives the scene positioning signal, the positioning module positions the communication Bluetooth headset;
the positioning module sends the position of the communication Bluetooth headset to the scene switching module; after receiving the position of the Bluetooth headset sent by the positioning module, the scene switching module compares the position with the position stored in the data storage module and matches the position;
and feeding back the position successfully matched to the scene switching module, and judging the scene type by the scene switching module according to the matching result.
The processor is configured to process data input by the data input module, and specifically, the ANC denoising process of the processor includes the following steps:
the method comprises the following steps: when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset;
step two: when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module;
when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module;
after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor;
after the processor receives a noise frequency spectrum corresponding to a call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and ANC noise reduction is further completed;
step three: when the Bluetooth headset is in a music playing mode, the scene switching module judges a music playing scene and switches the Bluetooth headset to the corresponding music playing scene; the scene switching module sends the music playing scene to the processor;
and after the processor receives the noise frequency spectrum corresponding to the music playing scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
The above formulas are all calculated by removing dimensions and taking numerical values thereof, the formula is a formula which is obtained by acquiring a large amount of data and performing software simulation to obtain the closest real situation, and the preset parameters and the preset threshold value in the formula are set by the technical personnel in the field according to the actual situation or obtained by simulating a large amount of data.
The working principle of the invention is as follows: the data acquisition module acquires noise of the communication Bluetooth headset, wherein the acquired noise comprises all noise judged as noise, and the noise acquired by the data acquisition module is sent to the data storage module; when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset; when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module; when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module; after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor; and after the processor receives the noise frequency spectrum corresponding to the call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (4)
1. A conversation Bluetooth headset based on ANC noise reduction is characterized by comprising a power supply module, a data input module, a processor, a data acquisition module, a scene switching module, a mode judgment module, a positioning module and a data storage module;
the power supply module is used for providing power support for the data input module, the processor, the data acquisition module, the scene switching module, the mode judgment module and the data storage module;
the data input module is used for providing data support for the ANC noise reduction-based communication Bluetooth headset;
the processor is used for processing the data input by the data input module;
the data acquisition module is used for acquiring noise of a call scene where the call Bluetooth headset is located;
the scene switching module is used for judging and switching conversation scenes of the conversation Bluetooth headset;
the mode judging module is used for judging the functional mode of the communication Bluetooth headset, and comprises a communication mode, a music playing mode and a starting standby mode;
the data storage module is used for storing data generated in the process of realizing the function of the communication Bluetooth headset;
the processor is configured to process data input by the data input module, and specifically, the ANC denoising process of the processor includes the following steps:
the method comprises the following steps: when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset;
step two: when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module;
when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module;
after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor;
after the processor receives a noise frequency spectrum corresponding to a call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and ANC noise reduction is further completed;
step three: when the Bluetooth headset is in a music playing mode, the scene switching module judges a music playing scene and switches the Bluetooth headset to the corresponding music playing scene; the scene switching module sends the music playing scene to the processor;
and after the processor receives the noise frequency spectrum corresponding to the music playing scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
2. The conversation Bluetooth headset based on ANC noise reduction of claim 1, wherein the data acquisition module performs noise acquisition on the conversation Bluetooth headset and transmits the noise acquired by the data acquisition module to the data storage module;
when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset;
when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module;
when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module;
after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor;
after the processor receives a noise frequency spectrum corresponding to a call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and ANC noise reduction is further completed;
the data acquisition module is used for collecting the noise that exists in the conversation scene that the conversation bluetooth headset belongs to, and is specific, the working process of data acquisition module includes following:
step S1: the mode judging module judges the functional mode, and when the mode is judged to be the call mode, the mode judging module sends a call mode signal to the data acquisition module;
step S2: the data acquisition module acquires a voice frequency spectrum of a calling user transmitted from the inside of the communication Bluetooth headset, and simultaneously acquires the voice frequency spectrum in the external environment;
step S3: the data acquisition module simultaneously transmits the sound frequency spectrum of the called user and the sound frequency spectrum in the external environment to the processor;
step S4: the processor compares the sound frequency spectrum of the calling user with the sound frequency spectrum in the external environment, and when the sound frequency spectrum in the external environment interferes with the sound frequency spectrum of the calling user, the corresponding sound frequency is judged to be the noise frequency;
step S5: collecting the noise frequency of the incoming call user, sending the noise frequency collected for many times to a data storage module, and binding the noise frequency collected for many times with a call mode by the data storage module;
the mode judging module is used for judging and processing the functional mode of the communication Bluetooth headset, and the specific process of judging the functional mode by the mode judging module comprises the following steps:
when the conversation Bluetooth earphone is in a power-on state, the mode judging module judges the functional mode;
the mode judging module sends a data connection acquisition signal to the data acquisition module, and the data acquisition module acquires the connection state of the conversation Bluetooth headset and the equipment; the connection state comprises connected and unconnected; the connected connection comprises a call connection and an audio connection;
the data acquisition module sends the acquired connection state to the mode judgment module;
when the connection state received by the mode judging module is not connected, the connection state indicates that the conversation Bluetooth earphone is not connected with the equipment, and the mode judging module judges that the function mode of the conversation Bluetooth earphone is a starting standby mode;
when the connection state received by the mode judging module is call connection, the call connection between the call Bluetooth earphone and the equipment is represented, and the mode judging module judges that the function mode of the call Bluetooth earphone is a call mode;
when the connection state received by the mode judging module is audio connection, the connection state indicates that the communication Bluetooth headset is connected with the equipment audio, and then the mode judging module judges that the function mode of the communication Bluetooth headset is a music playing mode.
3. The conversation bluetooth headset based on ANC noise reduction of claim 1, wherein the scene switching module is configured to determine a conversation scene where the conversation bluetooth headset is located, and the specific process of determining the conversation scene by the scene switching module includes the following steps:
the scene switching module counts and classifies different positions, and respectively marks the calling scene types as i, i is 1 and 2 … … n; wherein i is a positive integer;
when the communication Bluetooth headset is in a starting state and the mode judging module judges that the communication mode is the communication mode, the scene switching module sends a scene positioning signal to the positioning module, and after the positioning module receives the scene positioning signal, the positioning module positions the communication Bluetooth headset;
the positioning module sends the position of the communication Bluetooth headset to the scene switching module; after receiving the position of the Bluetooth headset sent by the positioning module, the scene switching module compares the position with the position stored in the data storage module and matches the position;
and feeding back the position successfully matched to the scene switching module, and judging the scene type by the scene switching module according to the matching result.
4. The talking bluetooth headset based on ANC noise reduction of claim 1, wherein the processor is configured to process data input by the data input module, and the ANC noise reduction process of the processor specifically includes the following steps:
the method comprises the following steps: when the Bluetooth headset is in a power-on state and is in Bluetooth connection with equipment, the mode judgment module judges the functional mode of the communication Bluetooth headset;
step two: when the mobile phone is in a call mode, the scene switching module judges a call scene, switches the Bluetooth headset to the corresponding call scene, and simultaneously sends the judged call scene to the data input module;
when the data input module receives a call scene sent by the scene switching module, the data input module sends a call scene signal and a data extraction signal to the data storage module;
after receiving the call scene signal and the data extraction signal sent by the data input module, the data storage module feeds back the noise spectrum corresponding to the call scene to the data input module, and the data input module sends the noise spectrum corresponding to the call scene to the processor;
after the processor receives a noise frequency spectrum corresponding to a call scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and ANC noise reduction is further completed;
step three: when the Bluetooth headset is in a music playing mode, the scene switching module judges a music playing scene and switches the Bluetooth headset to the corresponding music playing scene; the scene switching module sends the music playing scene to the processor;
and after the processor receives the noise frequency spectrum corresponding to the music playing scene, the phase of the noise frequency spectrum is reversed through an electronic circuit, and then ANC noise reduction is completed.
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