CN111010643B - Earphone charging box and infrared remote control device - Google Patents

Earphone charging box and infrared remote control device Download PDF

Info

Publication number
CN111010643B
CN111010643B CN201911361907.XA CN201911361907A CN111010643B CN 111010643 B CN111010643 B CN 111010643B CN 201911361907 A CN201911361907 A CN 201911361907A CN 111010643 B CN111010643 B CN 111010643B
Authority
CN
China
Prior art keywords
resistor
circuit
signal
infrared
controller
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.)
Active
Application number
CN201911361907.XA
Other languages
Chinese (zh)
Other versions
CN111010643A (en
Inventor
王超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Inc
Original Assignee
Goertek Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to CN201911361907.XA priority Critical patent/CN111010643B/en
Publication of CN111010643A publication Critical patent/CN111010643A/en
Application granted granted Critical
Publication of CN111010643B publication Critical patent/CN111010643B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1025Accumulators or arrangements for charging
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041Mechanical or electronic switches, or control elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)

Abstract

The invention provides an earphone charging box and an infrared remote control device. The technical scheme of the invention aims to realize remote control of the electric appliance through the earphone charging box.

Description

Earphone charging box and infrared remote control device
Technical Field
The invention relates to the field of infrared remote control, in particular to an earphone charging box and an infrared remote control device.
Background
In order to adapt to a brand new screen structure and save the space of the mobile phone, for example, the thickness of the mobile phone is reduced, the size of the mobile phone is reduced, more and more mobile phones are cut off the infrared function, so that once a user cannot find the remote controller or the remote controller is out of power, the user cannot control the television, the air conditioner and other electric appliances, and great inconvenience is brought to the user.
Disclosure of Invention
The invention provides an earphone charging box and an infrared remote control device, and aims to realize remote control of an electric appliance through the earphone charging box.
In order to achieve the above object, the present invention provides an earphone charging box, which includes a controller and a transmitting circuit, wherein an input terminal of the controller is connected to an output terminal of an earphone, and an output terminal of the controller is connected to an input terminal of the transmitting circuit;
the controller is arranged to receive a control instruction transmitted by the terminal equipment through the earphone when the earphone is in communication connection with the terminal equipment, convert the control instruction into a digital signal and output the digital signal;
the sending circuit is arranged to receive the digital signal output by the controller, generate an infrared signal according to the digital signal and output the infrared signal so as to control the electric appliance.
Optionally, the sending circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first electron tube, a second electron tube, and an infrared light emitting diode;
the first end of the first resistor is the input end of the sending circuit, and the second end of the first resistor is connected with the controlled end of the first electronic tube;
the first end of the second resistor and the first end of the fourth resistor are both connected with the output end of a system power supply, and the second end of the second resistor is connected with the input end of the first electronic tube and the first end of the third resistor; the output end of the first electronic tube is grounded;
the second end of the third resistor is connected with the controlled end of the second electronic tube;
the second end of the fourth resistor is connected with the anode of the infrared light emitting diode, the cathode of the infrared light emitting diode is connected with the input end of the second electronic tube, and the output end of the second electronic tube is grounded.
Optionally, the first electron tube and the second electron tube are both NPN triodes.
Optionally, the earphone charging box further comprises a receiving circuit; the receiving circuit is electrically connected with the controller;
the receiving circuit is arranged to receive the infrared signals reflected by the electric appliance and transmit the infrared signals reflected by the electric appliance to the controller.
Optionally, the receiving circuit includes a signal receiving circuit and a signal processing circuit;
the output end of the signal receiving circuit is connected with the signal input end of the signal processing circuit, and the signal output end of the signal processing circuit is electrically connected with the controller.
Optionally, the signal processing circuit includes an amplifier, an amplitude limiter, a band-pass filter, a demodulation circuit, an integration circuit, and a comparator, which are connected in sequence;
the input end of the amplifier is connected with the output end of the signal receiving circuit, and the output end of the comparator is electrically connected with the controller.
Optionally, the signal receiving circuit includes a fifth resistor, a sixth resistor, a first capacitor, and an infrared receiving head;
the first end of the fifth resistor, the first end of the sixth resistor, the first end of the first capacitor and the power supply end of the infrared receiving head are all connected with the output end of a system power supply, and the second end of the fifth resistor is connected with the power supply end of the signal processing circuit; the second end of the first capacitor is grounded;
and the signal output end of the infrared receiving head and the second end of the sixth resistor are connected with the signal input end of the signal processing circuit.
The invention also provides an infrared remote control device which comprises terminal equipment, an earphone and the earphone charging box, wherein the terminal equipment is connected with the earphone through the Bluetooth module, and the earphone is electrically connected with the controller of the earphone charging box.
Optionally, the earphone includes a modulation decoding circuit and a bluetooth module, the bluetooth module is connected to one end of the modulation decoding circuit, and the other end of the modulation decoding circuit is connected to the controller of the earphone charging box.
According to the technical scheme, the sending circuit is integrated on the earphone charging box, when the earphone is in communication connection with the terminal device, the terminal device transmits a control instruction for controlling the electric appliance to the controller of the earphone charging box through the earphone, the controller of the earphone charging box converts the control instruction into a corresponding digital signal and outputs the digital signal to the sending circuit, and the sending circuit generates a corresponding infrared signal according to the digital signal and sends the infrared signal to the electric appliance so as to achieve the purpose of controlling the electric appliance.
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 structures shown in the drawings without creative efforts.
Fig. 1 is a block diagram of an embodiment of a charging box for an earphone according to the present invention;
FIG. 2 is a circuit diagram of an embodiment of the transmitter circuit shown in FIG. 1;
fig. 3 is a block diagram illustrating another embodiment of the charging box for earphones according to the present invention;
FIG. 4 is a block diagram of an embodiment of the receiving circuit of FIG. 3;
fig. 5 is a schematic circuit diagram of an embodiment of the signal receiving circuit in fig. 4;
fig. 6 is a schematic circuit diagram of an embodiment of the signal processing circuit in fig. 4.
The reference numbers illustrate:
Figure BDA0002333950670000031
Figure BDA0002333950670000041
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1 is a block diagram of an embodiment of a charging box for an earphone according to the present invention.
Referring to fig. 1, the earphone charging box 300 includes a controller 30 and a transmitting circuit 31, an input terminal of the controller 30 is connected to an output terminal of the earphone 200, and an output terminal of the controller 30 is connected to an input terminal of the transmitting circuit 31.
The controller 30 may be a microprocessor such as a single chip, a DSP, or an FPGA, and the controller 30 is configured to receive a control instruction transmitted by the terminal device 100 through the earphone 200, convert the control instruction transmitted by the earphone 200 into a digital signal, for example, convert the digital signal into binary data, and output the binary data to the sending circuit 31.
The transmitting circuit 31 can be realized by a circuit formed by an infrared light emitting diode D1, and the infrared light emitting diode D1 of the transmitting circuit 31 is exposed and can be arranged at any position of the earphone charging box 300. For receiving the digital signal outputted from the controller 30, and generating and outputting an infrared signal according to the received digital signal to control the electric appliance 400.
In practical applications, the TWS (true wireless stereo) headset 200 is generally charged using the headset charging box 300, and when the headset 200 is properly positioned in the headset charging box 300, the headset 200 is electrically connected to the headset charging box 300.
According to the technical scheme, the transmitting circuit 31 is integrated on the earphone charging box 300, the earphone charging box 300 is used as an infrared transmitting port, when the earphone 200 is correctly positioned in the earphone charging box, namely the earphone 200 is electrically connected with the earphone charging box 300, the earphone 200 is used as a Bluetooth receiver to communicate with the terminal equipment 100, so that a control interface of a display screen of the terminal equipment 100, the earphone 200 and the transmitting circuit 31 of the earphone charging box 300 form a complete infrared remote control device, and the purpose of controlling the electric appliance 400 is achieved. The headset 200 is provided with a modulation and decoding circuit and a bluetooth module, the bluetooth module is used for realizing the communication connection between the terminal device 100 and the headset 200, and the modulation and decoding circuit is used for transmitting the control command output by the terminal device 100 to the controller 30 of the headset charging box 300 after modulation and decoding processing.
The specific working principle is as follows: when it is desired to use the transmitter circuit 31 on the ear-piece charging box 300, the lid of the ear-piece charging box 300 can be opened and the ear piece 200 can be properly positioned in the ear-piece charging box 300, preferably by aligning the exposed ir led D1 with the electrical apparatus 400 to improve the accuracy of remote control of the electrical apparatus 400. The user transmits a control command for remotely controlling the electric appliance 400 to the headset 200 through the bluetooth module through a control interface of the display screen of the terminal device 100, and the headset decodes the received control command and transmits the decoded control command to the controller 30 in the headset charging box 300 through the power line. The controller 30 transmits data in a modulation manner, that is, the controller 30 converts the received control command into a corresponding digital signal, for example, into binary data, and outputs the binary data to the transmitting circuit 31. The transmitting circuit 31 generates an infrared signal according to the received binary data and transmits the infrared signal to the electric appliance 400 to control the electric appliance 400 to perform corresponding operations.
According to the technical scheme of the embodiment, the transmitting circuit 31 is integrated on the earphone charging box 300, when the earphone 200 is in communication connection with the terminal device 100, the terminal device 100 transmits a control instruction for controlling the electric appliance 400 to the controller 30 in the earphone charging box 300 through the earphone 200, the controller 30 in the earphone charging box 300 converts the control instruction into a digital signal and outputs the digital signal to the transmitting circuit 31, and the transmitting circuit 31 generates an infrared signal according to the received digital signal and transmits the infrared signal to the electric appliance 400 to achieve the purpose of controlling the electric appliance 400.
Optionally, referring to fig. 2, in an embodiment, the sending circuit 31 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first tube Q1, a second tube Q2, and an infrared light emitting diode D1.
A first terminal of the first resistor R1 is an input terminal of the transmitting circuit 31, i.e., a second terminal of the first resistor R1 is connected to an output terminal of the controller 30; a second end of the first resistor R1 is connected with a controlled end of the first tube Q1; the first end of the second resistor R2 and the first end of the fourth resistor R4 are both connected with the output end of the system power supply VCC; a second end of the second resistor R2 is connected to an input terminal of the first lamp Q1, and an output terminal of the first lamp Q1 is grounded; the second end of the second resistor R2 is further connected to the first end of the third resistor R3, and the second end of the third resistor R3 is connected to the controlled end of the second tube Q2; a second end of the fourth resistor R4 is connected to an anode of the ir led D1, a cathode of the ir led D1 is connected to an input terminal of the second tube Q2, and an output terminal of the second tube Q2 is grounded.
The first electronic tube Q1 and the second electronic tube Q2 may be both configured as NPN triodes, with the base of the NPN triode being the controlled end of the electronic tube, the collector of the NPN triode being the input end of the electronic tube, and the emitter of the NPN triode being the output end of the electronic tube. It is understood that, in other embodiments, the first transistor Q1 and the second transistor Q2 may also be other transistors, such as PNP transistor, MOS transistor, etc.
The specific working principle is as follows: the transmitting circuit 31 is used for transmitting the infrared signal in a modulated manner, and the controller 30 controls the modulation carrier frequency, which can be selected from a range of 30khz to 60khz, but is not limited thereto. That is, the controller 30 controls the emission frequency of the infrared signal by switching the first tube Q1 and the second tube Q2. Specifically, when the controller 30 outputs a high level, the first valve Q1 is turned on, so that the level of the controlled terminal of the second valve Q2 is pulled low and the second valve Q2 is turned off. When the second lamp Q2 is turned off, the infrared light emitting diode D1 is not lit, that is, the infrared light emitting diode D1 does not emit infrared light. When the controller 30 outputs a low level, the first valve Q1 is turned off, and at this time, the controlled terminal of the second valve Q2 is at a high level and the second valve Q2 is turned on by the pull-up action of the second resistor R2. When the second electron tube Q2 is turned on, the system power VCC, the fourth resistor R4, the infrared light emitting diode D1, and the second electron tube Q2 are grounded to form a circuit, and the infrared light emitting diode D1 is lit to emit infrared light to the electric appliance 40. That is, the controller 30 can adjust the emitting frequency of the infrared signal by adjusting the digital signal outputted therefrom, thereby achieving the purpose of controlling different electrical appliances.
Optionally, referring to fig. 3, in one embodiment, the headset charging box further comprises a receiving circuit 32; the receiving circuit 32 is electrically connected to the controller 30.
The receiving circuit 32 can be implemented by a circuit composed of an infrared receiving head J1. The receiving circuit 32 is configured to receive the infrared signal reflected by the electrical apparatus 400, and transmit the infrared signal reflected by the electrical apparatus 400 to the controller 30 for the controller 30 to learn. So set up, enable the controller 30 to learn the remote control code values of different electrical instruments 400. For example, after receiving the infrared signal reflected by the electrical apparatus 400, the controller 30 samples the infrared signal at regular time, and stores binary data of the sampling points to the designated storage units respectively by using 8 bits as a unit, so as to control the electrical apparatus 400 for use later.
Optionally, referring to fig. 4, in an embodiment, the receiving circuit 32 includes a signal receiving circuit 321 and a signal processing circuit 322; the output terminal of the signal receiving circuit 321 is connected to the signal input terminal of the signal processing circuit 322, and the signal output terminal of the signal processing circuit 322 is electrically connected to the controller 30.
The signal receiving circuit 321, which may be implemented by a resistor including an infrared receiving diode, receives the infrared signal reflected by the electrical appliance 400, and transmits the received infrared signal to the signal processing circuit 322.
The signal processing circuit 322 may be formed by an integrated infrared receiving module. The signal processing circuit 322 is configured to perform signal amplification processing, amplitude limiting processing, filtering processing, demodulation processing, integration processing, and the like on the received infrared signal to restore a waveform of a signal transmitted by the transmitting end, and then transmit the waveform to the controller 30.
Optionally, referring to fig. 5, in an embodiment, the signal receiving circuit 321 includes a fifth resistor R5, a sixth resistor R6, a first capacitor C1, and an infrared receiver J1; the first end of the fifth resistor R5, the first end of the sixth resistor R6, the first end of the first capacitor C1 and the power terminal of the infrared receiver J1 are all connected to the output terminal of the system power VCC, and the second end of the fifth resistor R5 is connected to the power terminal of the signal processing circuit 322; the second end of the first capacitor C1 is grounded; the signal output end of the infrared receiving terminal J1 and the second end of the sixth resistor R6 are both connected to the signal input end of the signal processing circuit 322, and the ground end of the signal processing circuit 322 and the ground end of the infrared receiving terminal J1 are grounded.
Specifically, when the electrical appliance reflects an infrared signal, that is, when infrared light irradiates the infrared receiving head J1, the infrared receiving diode inside the infrared receiving head J1 generates a reverse current, and a voltage is generated by a load inside the infrared receiving head J1, thereby realizing photoelectric conversion. The infrared receiving head J1 feeds the generated voltage signal back to the signal processing circuit 322 for signal processing. When the electrical appliance 400 does not reflect the infrared signal, the infrared receiving diode inside the infrared receiving head J1 is turned off in the reverse direction, and no reverse current is generated. The sixth resistor R6 is a pull-up resistor for pulling up the signal input terminal of the signal processing circuit 322 to a high level when no infrared light is irradiated to the infrared receiving head J1. The fifth resistor R5 and the first capacitor C1 are used to reduce interference of the system power VCC.
Optionally, referring to fig. 6, in an embodiment, the signal processing circuit 322 includes an amplifier 40, a limiter 41, a band-pass filter 42, a demodulation circuit 43, an integration circuit 44, and a comparator 45, which are connected in sequence; wherein, the input terminal of the amplifier 40 is connected to the output terminal of the signal receiving circuit 321, and the output terminal of the comparator 45 is electrically connected to the controller 30.
That is, the input terminal of the amplifier 40 is connected to the output terminal of the signal receiving circuit 321, the output terminal of the amplifier 40 is connected to the input terminal of the limiter 41, the output terminal of the limiter 41 is connected to the input terminal of the band-pass filter 42, the output terminal of the band-pass filter 42 is connected to the input terminal of the demodulation circuit 43, the output terminal of the demodulation circuit 43 is connected to the input terminal of the integration circuit 44, the output terminal of the integration circuit 44 is connected to the input terminal of the comparator 45, and the output terminal of the comparator 45 is electrically connected to the controller 30.
Specifically, the infrared receiving head J1 receives an infrared signal reflected by the electric appliance 400, and the infrared signal is processed by the amplifier 40, the limiter 41, the band pass filter 42, the demodulation circuit 43, the integration circuit 44, the comparator 45, and the like and then output to the controller 30. The amplifier 40 is configured to amplify an infrared signal, the amplitude limiter 41 controls the amplitude of the infrared signal to a certain level, the infrared signal is filtered by the band-pass filter 42, and then enters the comparator 45 through the demodulation circuit 43 and the integration circuit 44, and the comparator 45 outputs a high level and a low level to restore the signal waveform at the transmitting end, and further sends the signal waveform to the controller 30 for processing.
The invention also provides an infrared remote control device which comprises a terminal device 100, an earphone 200 and the earphone charging box 300. The terminal device 100 is connected to the headset 200 through a bluetooth module, and the headset 200 is connected to the headset charging box 300 through a power line. In this embodiment, by integrating the transmitting circuit 31 on the earphone charging box 300, when the earphone 200 is correctly located in the earphone charging box 300, the earphone 200 is used as a bluetooth receiver to communicate with the terminal device 100, and the control interface on the display screen of the terminal device 100, the earphone 200, and the transmitting circuit 31 on the earphone charging box 300 form a complete infrared remote control device to remotely control the electrical appliance 400. Optionally, the headset 200 includes a modulation and decoding circuit and a bluetooth module, the bluetooth module is connected to one end of the modulation and decoding circuit, and the other end of the modulation and decoding circuit is connected to the controller of the headset charging box. The bluetooth module is used to implement communication connection between the terminal device 100 and the headset 200, and the modulation and decoding circuit is used to perform modulation and decoding processing on the control command output by the terminal device 100 and transmit the control command to the controller 30 of the headset charging box 300. The detailed structure of the earphone charging box 300 can refer to the above embodiments, and is not described herein; it can be understood that, since the above-mentioned earphone charging box 300 is used in the infrared remote control device of the present invention, the embodiment of the infrared remote control device of the present invention includes all technical solutions of all embodiments of the above-mentioned earphone charging box 300, and the achieved technical effects are also completely the same, and are not described herein again.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. The earphone charging box is characterized by comprising a controller and a sending circuit, wherein the input end of the controller is connected with the output end of an earphone, and the output end of the controller is connected with the input end of the sending circuit;
the controller is arranged to receive a control instruction transmitted by the terminal equipment through the earphone when the earphone is in communication connection with the terminal equipment, convert the control instruction into a digital signal and output the digital signal;
the transmitting circuit is arranged to receive the digital signal output by the controller, generate an infrared signal according to the digital signal and output the infrared signal so as to control an electric appliance;
the earphone charging box further comprises a receiving circuit; the receiving circuit is electrically connected with the controller;
the receiving circuit is arranged to receive the infrared signal reflected by the electric appliance and transmit the infrared signal reflected by the electric appliance to the controller for the controller to learn; and after receiving the infrared signals reflected by the electric appliance, the controller samples the infrared signals at regular time and stores the infrared signals to the designated storage units respectively.
2. The earphone charging box of claim 1, wherein the transmission circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first valve, a second valve, and an infrared light emitting diode;
the first end of the first resistor is the input end of the sending circuit, and the second end of the first resistor is connected with the controlled end of the first electronic tube;
the first end of the second resistor and the first end of the fourth resistor are both connected with the output end of a system power supply, and the second end of the second resistor is connected with the input end of the first electronic tube and the first end of the third resistor; the output end of the first electronic tube is grounded;
the second end of the third resistor is connected with the controlled end of the second electronic tube;
the second end of the fourth resistor is connected with the anode of the infrared light emitting diode, the cathode of the infrared light emitting diode is connected with the input end of the second electronic tube, and the output end of the second electronic tube is grounded.
3. The earphone charging box of claim 2, wherein the first valve and the second valve are NPN transistors.
4. The earphone charging box of claim 1, wherein the receiving circuit comprises a signal receiving circuit and a signal processing circuit;
the output end of the signal receiving circuit is connected with the signal input end of the signal processing circuit, and the signal output end of the signal processing circuit is electrically connected with the controller.
5. The earphone charging box according to claim 4, wherein the signal processing circuit comprises an amplifier, a limiter, a band-pass filter, a demodulation circuit, an integration circuit, and a comparator connected in this order;
the input end of the amplifier is connected with the output end of the signal receiving circuit, and the output end of the comparator is electrically connected with the controller.
6. The earphone charging box of claim 4, wherein the signal receiving circuit comprises a fifth resistor, a sixth resistor, a first capacitor, and an infrared receiving head;
the first end of the fifth resistor, the first end of the sixth resistor, the first end of the first capacitor and the power supply end of the infrared receiving head are all connected with the output end of a system power supply, and the second end of the fifth resistor is connected with the power supply end of the signal processing circuit; the second end of the first capacitor is grounded;
the signal output end of the infrared receiving head and the second end of the sixth resistor are both connected with the signal input end of the signal processing circuit; and the ground end of the signal processing circuit and the ground end of the infrared receiving head are grounded.
7. An infrared remote control device, characterized in that the infrared remote control device comprises a terminal device, an earphone and an earphone charging box according to any one of claims 1-6, wherein the terminal device is connected with the earphone through a bluetooth module, and the earphone is electrically connected with a controller of the earphone charging box.
8. The infrared remote control device as claimed in claim 7, wherein the headset includes a modulation and decoding circuit and a bluetooth module, the bluetooth module is connected to one end of the modulation and decoding circuit, and the other end of the modulation and decoding circuit is connected to the controller of the headset charging box.
CN201911361907.XA 2019-12-24 2019-12-24 Earphone charging box and infrared remote control device Active CN111010643B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911361907.XA CN111010643B (en) 2019-12-24 2019-12-24 Earphone charging box and infrared remote control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911361907.XA CN111010643B (en) 2019-12-24 2019-12-24 Earphone charging box and infrared remote control device

Publications (2)

Publication Number Publication Date
CN111010643A CN111010643A (en) 2020-04-14
CN111010643B true CN111010643B (en) 2021-08-24

Family

ID=70118878

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911361907.XA Active CN111010643B (en) 2019-12-24 2019-12-24 Earphone charging box and infrared remote control device

Country Status (1)

Country Link
CN (1) CN111010643B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113676813B (en) * 2021-08-20 2024-01-09 维沃移动通信有限公司 Charging box, control method and device thereof, earphone assembly and readable storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108953890A (en) * 2018-07-24 2018-12-07 浙江兀兀科技有限公司 It is a kind of to have the cell phone intelligent remote controler for hanging function
CN108980579A (en) * 2018-07-24 2018-12-11 浙江兀兀科技有限公司 A kind of cell phone intelligent remote controler
CN109361984A (en) * 2018-12-06 2019-02-19 恒玄科技(上海)有限公司 Charging box, wireless headset, earphone external member and speech processing system
CN110351624A (en) * 2019-07-04 2019-10-18 协创数据技术股份有限公司 A kind of ear speaker device with communication function

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201114710Y (en) * 2007-08-07 2008-09-10 李明 Novel Bluetooth earphone
CN206147939U (en) * 2016-10-26 2017-05-03 北京理工大学 Draw -in groove formula cell -phone infrared remote control expands shell

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108953890A (en) * 2018-07-24 2018-12-07 浙江兀兀科技有限公司 It is a kind of to have the cell phone intelligent remote controler for hanging function
CN108980579A (en) * 2018-07-24 2018-12-11 浙江兀兀科技有限公司 A kind of cell phone intelligent remote controler
CN109361984A (en) * 2018-12-06 2019-02-19 恒玄科技(上海)有限公司 Charging box, wireless headset, earphone external member and speech processing system
CN110351624A (en) * 2019-07-04 2019-10-18 协创数据技术股份有限公司 A kind of ear speaker device with communication function

Also Published As

Publication number Publication date
CN111010643A (en) 2020-04-14

Similar Documents

Publication Publication Date Title
WO2012121833A1 (en) System and method for provision of infrared signalling in smart phone devices
MXPA01010077A (en) Remote control having an audio port.
CN111010643B (en) Earphone charging box and infrared remote control device
CN102611927A (en) Set top box with universal remote control function
CN203057324U (en) Control device, digital television terminal, and system
CN103209252A (en) Universal remote control system
CN204650224U (en) A kind of remote speech appliance control system
CN210123978U (en) Wireless audio switching equipment
US8897429B2 (en) Communication circuit employing optocoupler
CN215773548U (en) Wireless bone conduction microphone circuit
CN203786894U (en) Remote control signal processing circuit of loudspeaker box as well as loudspeaker box
CN201131007Y (en) Television remote control as well as wireless reflector
CN217388941U (en) Gun type microphone with wireless audio transmission and gun type microphone system
CN200983199Y (en) Remote controller preventing from loss
CN103873646A (en) Universal remote control system
CN216626036U (en) Intelligent microphone circuit capable of realizing self-adjustment
US4691128A (en) Circuit for coupling a signal processing device to a transmission line
CN204229558U (en) A kind of wireless remote control doorbell circuit conversed
CN216871381U (en) Infrared shielding alarm device based on semiconductor
CN218482854U (en) Bidirectional communication circuit capable of being used in blind plugging mode
CN210609479U (en) Communication circuit and electronic equipment based on unicable technology
US20050277384A1 (en) FM stereo modulator
CN113423043B (en) Audio transmission system based on 5G module
CN203181045U (en) Universal remote control system
CN218734879U (en) Infrared wireless earphone control circuit and device based on frequency modulation transmission

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