CN104885479A - Line control device of earphone, and earphone - Google Patents
Line control device of earphone, and earphone Download PDFInfo
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- CN104885479A CN104885479A CN201480003761.0A CN201480003761A CN104885479A CN 104885479 A CN104885479 A CN 104885479A CN 201480003761 A CN201480003761 A CN 201480003761A CN 104885479 A CN104885479 A CN 104885479A
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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
- H04R1/1041—Mechanical or electronic switches, or control elements
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Abstract
A line control device of an earphone, comprising a power supply management unit, a filter unit, a control unit, a first resistor, a first diode, a first switch, a second resistor and a second switch, wherein a first end of the power supply management unit, one end of the filter unit, one end of the first resistor and one end of the second resistor are connected to a power source; the other end of the first resistor is connected to the positive electrode of the first diode; the negative electrode of the first diode is connected to one end of the first switch; the other end of the second resistor is connected to one end of the second switch; the other end of the first switch and the other end of the second switch are grounded; a first end and a third end of the control unit are respectively connected to the negative electrode of the first diode and the other end of the first resistor; a second end of the control unit is grounded; a fourth end of the control unit is connected to the other end of the filter unit; a second end of the power supply management unit is grounded; and a third end of the power supply management unit is connected to a fifth end of the control unit. When the first switch or the second switch is switched on/off, the control unit outputs a pre-set coded pulse signal.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of earphones, in particular to an earphone line control device and an earphone.
[ background of the invention ]
With the development of terminal technology, more and more terminal devices appear. In order to make the terminal device have more enhanced processing power and more functions, an operating system has been developed for the terminal device. There are a variety of operating systems, the most used of which are: android, iOS, Symbian, windows phone, and BlackBerry OS.
The mobile phones with different operating systems need to be matched with corresponding earphones, so that the earphones cannot be universally used on the mobile phones with different operating systems. For example, a headset equipped for a cell phone with Android os cannot be used for a cell phone with iOS os, and vice versa.
[ summary of the invention ]
Therefore, there is a need for an earphone line control device and an earphone, which can be used in common for terminal devices with different operating systems.
An earphone line control apparatus, comprising: the power supply device comprises a power supply management unit, a filtering unit, a control unit, a first resistor, a first diode, a first switch, a second resistor and a second switch, wherein the power supply management unit is connected with the filtering unit;
the power supply management unit comprises a power supply management unit, a power supply management unit and a control unit, wherein a first end of the power supply management unit, one end of the filter unit, one end of a first resistor and one end of a second resistor are connected with a power supply, the other end of the first resistor is connected with the anode of a first diode, the cathode of the first diode is connected with one end of a first switch, the other end of the second resistor is connected with one end of a second switch, the other end of the first switch and the other end of the second switch are grounded, the first end and the third end of the control unit are respectively connected with the cathode of the first diode and the other end of the second resistor, the second end of the control unit is grounded, the fourth end of the control unit is connected with the other end of the filter unit, the second end of the power supply management unit is grounded, and the; the first switch corresponds to the first resistor, the second switch corresponds to the second resistor, when the first switch or the second switch is closed, the control unit outputs a first preset coding pulse signal, and the first resistor or the second resistor and a circuit inside the mobile phone divide voltage to generate different voltage values; when the first switch or the second switch is disconnected, the control unit outputs a second preset coding pulse signal.
In one embodiment, when the first switch or the second switch is closed, the control unit outputs first preset encoding pulse signals with different frequencies respectively.
In one embodiment, the line control device further comprises a third switch, one end of the third switch is connected to the sixth end of the control unit, the other end of the third switch is grounded, and when the third switch is closed, the control unit outputs a third preset encoded audio signal.
In one embodiment, the power management unit comprises a second diode and a first capacitor, wherein the anode of the second diode is connected with the power supply, the cathode of the second diode is connected with one end of the first capacitor, and the other end of the first capacitor is grounded.
In one embodiment, the filtering unit includes a second capacitor and a fourth resistor connected in series.
In one embodiment, the fourth terminal of the power management unit is connected to the first terminal of the control unit.
In one embodiment, the line control device further comprises a third switch, one end of the third switch is connected to the sixth end of the control unit, the other end of the third switch is grounded, and when the third switch is closed, the control unit outputs a third preset encoded audio signal.
In one embodiment, the power supply management unit comprises a second diode, a third resistor and a first capacitor, wherein the anode of the second diode is connected with the power supply, the cathode of the second diode is connected with one end of the third resistor and one end of the first capacitor, the other end of the third resistor is connected with the first end of the control unit, and the other end of the first capacitor is grounded.
In one embodiment, the filtering unit includes a second capacitor and a fourth resistor connected in series.
A headset comprising a headset cord control device as claimed in any one of the above embodiments.
The earphone wire control device and the earphone can realize that the same earphone can be used on terminal equipment with at least two different operating systems.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic structural diagram of a headphone line control device in an embodiment;
fig. 2 is a schematic structural diagram of a headphone wire control device in another embodiment;
fig. 3 is a schematic structural diagram of a headphone wire control device in another embodiment;
fig. 4 is a schematic structural diagram of a headphone wire control device in another embodiment;
fig. 5 is a schematic structural diagram of a headphone wire control device in another embodiment;
fig. 6 is a schematic structural diagram of a headphone wire control device in another embodiment;
fig. 7 is a schematic structural diagram of a headphone wire control device in another embodiment;
fig. 8 is a schematic structural diagram of a headphone wire control device in another embodiment.
[ detailed description ] embodiments
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Fig. 1 is a schematic structural diagram of a headset wire control device in an embodiment.
The earphone line control device comprises: the power supply management unit 100, the filter unit 200, the control unit 300, the first resistor 400, the first diode 500, the first switch 600, the second resistor 700, and the second switch 800. The first end 101 of the power supply management unit 100, the one end 201 of the filter unit 200, the one end of the first resistor 400, and the one end of the second resistor 700 are all connected to a power supply, the other end of the first resistor 400 is connected to the anode of the first diode 500, the cathode of the first diode 500 is connected to one end of the first switch 600, the other end of the second resistor 700 is connected to one end of the second switch 800, the other end of the first switch 600 and the other end of the second switch 800 are both grounded, the first end 301 and the third end 303 of the control unit 300 are respectively connected to the cathode of the first diode 500 and the other end of the second resistor 700, the second end 302 of the control unit 300 is grounded, the fourth end 304 of the control unit 300 is connected to the other end 202 of the filter unit 200, the second end 102 of the power supply management unit 100 is grounded, and the third end 103 of the power supply management unit 100 is connected to the fifth end 305 of the control.
In one embodiment, when the first switch 600 is turned on, the first end 301 of the control unit 300 detects a low level, the control unit 300 does not output any voltage, and the first resistor 400 corresponding to the first switch 600 divides the voltage with the internal circuit of the mobile phone; when the second switch 800 is closed, the third terminal 303 of the control unit 300 detects a low level, the control unit 300 does not output any voltage, and the second resistor 700 corresponding to the second switch 800 divides the voltage with the internal circuit of the mobile phone. The mobile phone distinguishes whether the first switch 600 or the second switch 800 is closed according to a voltage value obtained by voltage division of the first resistor 400 or the second resistor 700, and functions of earphone volume adjustment, previous music and next music and the like of an operating system (such as Android) are achieved.
When the first switch 600 or the second switch 800 changes from the closed state to the open state, the first terminal 301 or the third terminal 303 of the control unit 300 detects a high level, and at this time, the control unit 300 outputs a predetermined encoding pulse signal.
When the first switch 600 is turned off, the control unit 300 outputs a coded pulse signal of about 116 KHz; when the second switch 800 is turned off, the control unit 300 outputs an encoded pulse signal of about 154 KHz. The filtering unit 200 superimposes the coded pulse signal output by the control unit 300 on the main circuit and feeds back the coded pulse signal to the handset connected with the earphone, and the handset distinguishes the operation of the first switch 600 or the second switch 800 according to the coded pulse signal to realize the earphone volume adjustment, or the previous music and the next music and other functions of another operating system (such as IOS).
In another embodiment, for example, the headset is connected to a mobile phone with an Android operating system, and at the instant when the headset is plugged into the mobile phone, the control unit 300 may generate a coded pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (5.5 ms) to send to the mobile phone for headset initialization, but the mobile phone with the Android operating system cannot recognize the coded pulse signal and does not respond.
When the first switch 600 is closed, the first end 301 of the control unit 300 detects a low level, the first resistor 400 corresponding to the first switch 600 divides voltage with an internal circuit of the mobile phone, and the mobile phone with the Android operating system responds by distinguishing the closing action of the first switch 600 according to the voltage value obtained by dividing the voltage by the first resistor 400; the control unit 300 generates a first preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (5.5 ms) and sends the first preset encoding pulse signal to the mobile phone of the Android operating system connected with the earphone line control device, and the mobile phone of the Android operating system cannot identify the first preset encoding pulse signal and does not respond.
Similarly, when the second switch 800 is closed, the third terminal 303 of the control unit 300 detects a low level, the second resistor 700 corresponding to the second switch 800 divides voltage with an internal circuit of the mobile phone, and the mobile phone of the Android operating system determines the closing action of the second switch 800 according to a voltage value obtained by dividing the voltage of the second resistor 700 so as to respond; the control unit 300 generates a first preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +165KHz (1.8 ms) and feeds the first preset encoding pulse signal back to the mobile phone of the Android operating system connected with the earphone line control device, and the mobile phone of the Android operating system cannot identify the first preset encoding pulse signal and does not respond.
The mobile phone with the Android operating system distinguishes whether the first switch 600 or the second switch 800 is closed according to a voltage value obtained by voltage division of the first resistor 400 or the second resistor 700, and functions of earphone volume adjustment, previous music, next music and the like of the Android operating system are achieved.
When the first switch 600 or the second switch 800 is turned off, that is, at the moment when the switch is turned off from the closed state, the control unit 300 detects a high level, the control unit 300 outputs a second preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +95KHz (1.8 ms), and the mobile phone of the Android operating system cannot recognize the second preset encoding pulse signal and does not respond.
In the embodiment, for example, the headset is connected to a mobile phone of the iOS operating system, and at the instant when the headset is plugged into the mobile phone, the control unit 300 will generate a coded pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (5.5 ms) to be sent to the mobile phone for headset initialization.
When the first switch 600 is closed, the first end 301 of the control unit 300 detects a low level, the control unit 300 generates a first preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (1.8 ms) and sends the first preset encoding pulse signal to the mobile phone of the iOS operating system connected with the earphone line control device, and the mobile phone of the iOS operating system recognizes the first preset encoding pulse signal to respond; the first resistor 400 corresponding to the first switch 600 is divided by the internal circuit of the mobile phone, and the mobile phone of the iOS operating system cannot recognize the voltage value obtained by dividing the voltage by the first resistor 400 and does not respond.
Similarly, when the second switch 800 is closed, the third terminal 303 of the control unit 300 detects a low level, the control unit 300 generates a first preset coded pulse signal with a frequency of 270KHz (0.9 ms) +165KHz (1.8 ms) and feeds the first preset coded pulse signal back to the mobile phone of the iOS operating system connected with the headset line control device, and the mobile phone of the iOS operating system recognizes the coded pulse signal and responds; the second resistor 400 corresponding to the second switch 800 divides the voltage with the internal circuit of the mobile phone, and the mobile phone of the iOS operating system cannot recognize the voltage value obtained by dividing the voltage by the second resistor 700 and does not respond.
The mobile phone of the iOS operating system distinguishes the operation of the first switch 600 or the second switch 800 according to the coded pulse signal, and realizes the functions of volume adjustment, or previous music and next music, etc.
When the first switch 600 or the second switch 800 is turned off, that is, at the moment of changing from the closed state to the open state, the control unit 300 detects a high level, and the control unit 300 outputs a second predetermined encoding pulse signal having a frequency of 270KHz (0.9 ms) +95KHz (1.8 ms). The filtering unit 200 superimposes the second preset coded pulse signal output by the control unit 300 on the main circuit and sends the superimposed signal to the handset connected with the earphone, and the handset distinguishes the end of the operation of the first switch 600 or the second switch 800 according to the coded pulse signal, that is, the end of the operation of the functions of earphone volume adjustment, or the previous music and the next music, etc.
In the above embodiment, the role of the first diode 500 is very important, when the first switch 800 is closed, the second resistor 700 divides the voltage with the internal circuit of the mobile phone, the third terminal 303 of the control unit 300 is at low level, and if the first diode 500 is not provided, the first terminal 301 of the control unit 300 also becomes at low level, thereby causing malfunction.
Fig. 2 is a schematic structural diagram of a headphone wire control device in another embodiment. In this embodiment, the power management unit 100 includes a second diode D2 and a first capacitor C1, wherein the anode of the second diode D2 is connected to the power source, the cathode of the second diode D2 is connected to one end of the first capacitor C1, and the other end of the first capacitor C1 is grounded. The first capacitor C1 may be formed by two capacitors connected in parallel.
The power supply management unit 100 is used to provide stable power supply for the control unit 300. The first capacitor C1 has the functions of voltage stabilization, current freewheeling and power supply for the control unit 300; the absence of the second diode D2 may result in a voltage that is too low, a discharge of the first capacitor C1 that is too fast, and a crash of the control unit 300.
Fig. 3 is a schematic structural diagram of a headphone wire control device in another embodiment. In this embodiment, the filter unit 200 is formed by connecting the second capacitor C2 and the fourth resistor R4 in series.
Fig. 4 is a schematic structural diagram of a headphone wire control device in another embodiment. The wire control device further comprises a third switch 900, one end of the third switch 900 is connected with the sixth end 306 of the control unit 300, the other end of the third switch 900 is grounded, when the third switch 900 is turned on or turned off, the control unit 300 outputs a third preset coded audio signal, a mobile phone connected with the wire control device decodes the coded audio signal, and different functions set by a user, such as WeChat voice message leaving, WeChat voice playing, photographing, volume increasing/decreasing and music advancing/retreating function switching, screen capturing and voice control, are realized by running different application programs (App).
In one embodiment, the encoded audio signal is a low band signal of 20Hz-20 KHZ.
In another embodiment, the first switch is a volume down (-) switch of the earphone line control device, the second switch is a volume up (+) switch of the earphone line control device, the third switch is a play/stop switch of the earphone line control device, and the control unit 300 can realize different functions by detecting whether the three switches are in a closed state or an open state.
Fig. 5 is a schematic structural diagram of a headphone wire control device in another embodiment.
The earphone line control device comprises: the power supply management unit 100, the filter unit 200, the control unit 300, the first resistor 400, the first diode 500, the first switch 600, the second resistor 700, and the second switch 800. A first terminal 101 of the power supply management unit 100, a terminal 201 of the filtering unit 200, one end of the first resistor 400 and one end of the second resistor 700 are both connected to a power supply, the other end of the first resistor 400 is connected to the anode of the first diode 500, the cathode of the first diode 500 is connected to one end of the first switch 600, the other end of the second resistor 700 is connected to one end of the second switch 800, the other ends of the first switch 600 and the second switch 800 are both grounded, the first end 301 and the third end 303 of the control unit 300 are respectively connected to the cathode of the first diode 500 and the other end of the second resistor 700, the second end of the control unit 300 is grounded, the fourth end 304 of the control unit 300 is connected to the other end 202 of the filter unit 200, the second end 102 of the power supply management unit 100 is grounded, the third end 103 of the power supply management unit 100 is connected to the fifth end 305 of the control unit 300, and the fourth end 104 of the power supply management unit 100 is connected to the first end 301 of the control unit 300.
In one embodiment, when the first switch 600 is turned on, the first end 301 of the control unit 300 detects a low level, the control unit 300 does not output any voltage, and the first resistor 400 corresponding to the first switch 600 divides the voltage with the internal circuit of the mobile phone; when the second switch 800 is closed, the third terminal 303 of the control unit 300 detects a low level, the control unit 300 does not output any voltage, and the second resistor 700 corresponding to the second switch 800 divides the voltage with the internal circuit of the mobile phone. The mobile phone distinguishes whether the first switch 600 or the second switch 800 is closed according to a voltage value obtained by voltage division of the first resistor 400 or the second resistor 700, and functions of earphone volume adjustment, previous music and next music and the like of an operating system (such as Android) are achieved.
When the first switch 600 or the second switch 800 changes from the closed state to the open state, the first terminal 301 or the third terminal 303 of the control unit 300 detects a high level, and at this time, the control power supply 300 outputs a predetermined encoding pulse signal.
When the first switch 600 is turned off, the control unit 300 outputs a coded pulse signal of about 116 KHz; when the second switch 800 is turned off, the control unit 300 outputs an encoded pulse signal of about 154 KHz. The filtering unit 200 superimposes the coded pulse signal output by the control unit 300 on the main circuit and feeds back the coded pulse signal to the handset connected with the earphone, and the handset distinguishes the operation of the first switch 600 or the second switch 800 according to the coded pulse signal to realize the earphone volume adjustment, or the previous music and the next music and other functions of another operating system (such as IOS).
In another embodiment, for example, the headset is connected to a mobile phone with an Android operating system, and at the instant when the headset is plugged into the mobile phone, the control unit 300 may generate a coded pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (5.5 ms) to send to the mobile phone for headset initialization, but the mobile phone with the Android operating system cannot recognize the coded pulse signal and does not respond.
When the first switch 600 is closed, the first end 301 of the control unit 300 detects a low level, the first resistor 400 corresponding to the first switch 600 divides voltage with an internal circuit of the mobile phone, and the mobile phone with the Android operating system responds by distinguishing the closing action of the first switch 600 according to the voltage value obtained by dividing the voltage by the first resistor 400; the control unit 300 generates a first preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (5.5 ms) and sends the first preset encoding pulse signal to the mobile phone of the Android operating system connected with the earphone line control device, and the mobile phone of the Android operating system cannot identify the first preset encoding pulse signal and does not respond.
Similarly, when the second switch 800 is closed, the third terminal 303 of the control unit 300 detects a low level, the second resistor 700 corresponding to the second switch 800 divides voltage with an internal circuit of the mobile phone, and the mobile phone of the Android operating system determines the closing action of the second switch 800 according to a voltage value obtained by dividing the voltage of the second resistor 700 so as to respond; the control unit 300 generates a first preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +165KHz (1.8 ms) and feeds the first preset encoding pulse signal back to the mobile phone of the Android operating system connected with the earphone line control device, and the mobile phone of the Android operating system cannot identify the first preset encoding pulse signal and does not respond.
The mobile phone with the Android operating system distinguishes whether the first switch 600 or the second switch 800 is closed according to a voltage value obtained by voltage division of the first resistor 400 or the second resistor 700, and functions of earphone volume adjustment, previous music, next music and the like of the Android operating system are achieved.
When the first switch 600 or the second switch 800 is turned off, that is, at the moment when the switch is turned off from the closed state, the control unit 300 detects a high level, the control unit 300 outputs a second preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +95KHz (1.8 ms), and the mobile phone of the Android operating system cannot recognize the second preset encoding pulse signal and does not respond.
In the embodiment, for example, the headset is connected to a mobile phone of the iOS operating system, and at the instant when the headset is plugged into the mobile phone, the control unit 300 will generate a coded pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (5.5 ms) to be sent to the mobile phone for headset initialization.
When the first switch 600 is closed, the first end 301 of the control unit 300 detects a low level, the control unit 300 generates a first preset encoding pulse signal with a frequency of 270KHz (0.9 ms) +130KHz (1.8 ms) and sends the first preset encoding pulse signal to the mobile phone of the iOS operating system connected with the earphone line control device, and the mobile phone of the iOS operating system recognizes the first preset encoding pulse signal to respond; the first resistor 400 corresponding to the first switch 600 is divided by the internal circuit of the mobile phone, and the mobile phone of the iOS operating system cannot recognize the voltage value obtained by dividing the voltage by the first resistor 400 and does not respond.
Similarly, when the second switch 800 is closed, the third terminal 303 of the control unit 300 detects a low level, the control unit 300 generates a first preset coded pulse signal with a frequency of 270KHz (0.9 ms) +165KHz (1.8 ms) and feeds the first preset coded pulse signal back to the mobile phone of the iOS operating system connected with the headset line control device, and the mobile phone of the iOS operating system recognizes the coded pulse signal and responds; the second resistor 400 corresponding to the second switch 800 divides the voltage with the internal circuit of the mobile phone, and the mobile phone of the iOS operating system cannot recognize the voltage value obtained by dividing the voltage by the second resistor 700 and does not respond.
The mobile phone of the iOS operating system distinguishes the operation of the first switch 600 or the second switch 800 according to the coded pulse signal, and realizes the functions of volume adjustment, or previous music and next music, etc.
When the first switch 600 or the second switch 800 is turned off, that is, at the moment of changing from the closed state to the open state, the control unit 300 detects a high level, and the control unit 300 outputs a second predetermined encoding pulse signal having a frequency of 270KHz (0.9 ms) +95KHz (1.8 ms). The filtering unit 200 superimposes the second preset coded pulse signal output by the control unit 300 on the main circuit and sends the superimposed signal to the handset connected with the earphone, and the handset distinguishes the end of the operation of the first switch 600 or the second switch 800 according to the coded pulse signal, that is, the end of the operation of the functions of earphone volume adjustment, or the previous music and the next music, etc.
In the above embodiment, the role of the first diode 500 is very important, when the first switch 800 is closed, the second resistor 700 divides the voltage with the internal circuit of the mobile phone, the third terminal 303 of the control unit 300 is at low level, and if the first diode 500 is not provided, the first terminal 301 of the control unit 300 also becomes at low level, thereby causing malfunction.
Fig. 6 is a schematic structural diagram of a headphone wire control device in another embodiment. In this embodiment, the power management unit 100 includes a second diode D2, a third resistor R3, and a first capacitor C1, wherein an anode of the second diode D2 is connected to the power source, a cathode of the second diode D2 is connected to one end of the third resistor R3 and one end of the first capacitor C1, another end of the third resistor R3 is connected to the first end 301 of the control unit 300, so as to raise the voltage of the first capacitor C1 to the output voltage value of the earphone hole of the mobile phone, and another end of the first capacitor C1 is grounded.
The power supply management unit 100 is used to provide stable power supply for the control unit 300. The first capacitor C1 has the functions of voltage stabilization, current freewheeling and power supply for the control unit 300; the absence of the diode D2 may result in too low voltage, too fast discharge of the supply capacitor C1, and the control unit 300 may be halted and may not operate properly.
Fig. 7 is a schematic structural diagram of a headphone wire control device in another embodiment. In this embodiment, the filter unit 200 is formed by connecting the second capacitor C2 and the fourth resistor R4 in series.
Fig. 8 is a schematic structural diagram of a headphone wire control device in another embodiment. The wire control device further comprises a third switch 900, one end of the third switch 900 is connected with the sixth end 306 of the control unit 300, the other end of the third switch 900 is grounded, when the third switch 900 is turned on or turned off, the control unit 300 outputs a third preset coded audio signal, a mobile phone connected with the wire control device decodes the coded audio signal, and different functions set by a user, such as WeChat voice message leaving, WeChat voice playing, photographing, volume increasing/decreasing and music advancing/retreating function switching, screen capturing and voice control, are realized by running different application programs (App).
In one embodiment, the encoded audio signal is a low band signal of 20Hz-20 KHZ.
In another embodiment, the first switch is a volume down (-) switch of the earphone line control device, the second switch is a volume up (+) switch of the earphone line control device, the third switch is a play/stop switch of the earphone line control device, and the control unit 300 can realize different functions by detecting whether the three switches are in a closed state or an open state.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
- An earphone line control apparatus, comprising: the power supply device comprises a power supply management unit, a filtering unit, a control unit, a first resistor, a first diode, a first switch, a second resistor and a second switch, wherein the power supply management unit is connected with the filtering unit;the first end of the power supply management unit, one end of the filtering unit, one end of the first resistor and one end of the second resistor are all connected with a power supply, the other end of the first resistor is connected with the anode of the first diode, the cathode of the first diode is connected with one end of the first switch, the other end of the second resistor is connected with one end of the second switch, the other end of the first switch and the other end of the second switch are both grounded, the first end and the third end of the control unit are respectively connected with the cathode of the first diode and the other end of the second resistor, the second end of the control unit is grounded, the fourth end of the control unit is connected with the other end of the filtering unit, the second end of the power supply management unit is grounded, and the third end of the power supply management unit is connected with the fifth end of the control unit; the first switch corresponds to the first resistor, the second switch corresponds to the second resistor, when the first switch or the second switch is closed, the control unit outputs a first preset coding pulse signal, and the first resistor or the second resistor and a mobile phone internal circuit divide voltage to generate different voltage values; when the first switch or the second switch is disconnected, the control unit outputs a second preset coding pulse signal.
- The earphone line control device according to claim 1, wherein the control unit outputs first preset coded pulse signals of different frequencies when the first switch or the second switch is closed, respectively.
- The earphone line control device according to claim 1, further comprising a third switch, wherein one end of the third switch is connected to the sixth end of the control unit, the other end of the third switch is grounded, and when the third switch is closed, the control unit outputs a third preset encoded audio signal.
- The earphone line control device according to claim 1, wherein the power supply management unit comprises a second diode and a first capacitor, wherein an anode of the second diode is connected with a power supply, a cathode of the second diode is connected with one end of the first capacitor, and the other end of the first capacitor is grounded.
- The earphone line control apparatus of claim 1, wherein the filter unit comprises a second capacitor and a fourth resistor connected in series.
- The headset cord control device of claim 1, wherein the fourth terminal of the power management unit is connected to the first terminal of the control unit.
- The earphone line control device according to claim 6, further comprising a third switch, wherein one end of the third switch is connected to the sixth end of the control unit, the other end of the third switch is grounded, and when the third switch is closed, the control unit outputs a third preset encoded audio signal.
- The earphone line control device according to claim 6, wherein the power supply management unit comprises a second diode, a third resistor and a first capacitor, wherein an anode of the second diode is connected with a power supply, a cathode of the second diode is connected with one end of the third resistor and one end of the first capacitor, the other end of the third resistor is connected with the first end of the control unit, and the other end of the first capacitor is grounded.
- The earphone line control device according to claim 6, wherein the filter unit comprises a second capacitor and a fourth resistor connected in series.
- A headset, characterized in that it comprises a headset cord control device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201480003761.0A CN104885479A (en) | 2013-11-27 | 2014-09-24 | Line control device of earphone, and earphone |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013106365847 | 2013-11-27 | ||
| CN201310636584.7A CN103634718B (en) | 2013-11-27 | A kind of wire-controlled apparatus for earphone and earphone | |
| CN2013107173153 | 2013-12-23 | ||
| CN201310717315.3A CN103888871B (en) | 2013-12-23 | 2013-12-23 | Wire control device used for earphone and earphone |
| CN201480003761.0A CN104885479A (en) | 2013-11-27 | 2014-09-24 | Line control device of earphone, and earphone |
| PCT/CN2014/087246 WO2015078226A1 (en) | 2013-11-27 | 2014-09-24 | Line control device of earphone, and earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104885479A true CN104885479A (en) | 2015-09-02 |
Family
ID=53198318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480003761.0A Pending CN104885479A (en) | 2013-11-27 | 2014-09-24 | Line control device of earphone, and earphone |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104885479A (en) |
| WO (1) | WO2015078226A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115175062A (en) * | 2022-09-07 | 2022-10-11 | 广州市保伦电子有限公司 | Audio power-on and power-off impact prevention control method and circuit based on external equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480658A (en) * | 2010-11-22 | 2012-05-30 | 美律实业股份有限公司 | Earphone plug suitable for different system specifications |
| CN103634718A (en) * | 2013-11-27 | 2014-03-12 | 衡阳加一电子科技有限公司 | Earphone and line control device for same |
| CN103700238A (en) * | 2013-12-16 | 2014-04-02 | 中山菲柯特电子电器有限公司 | Four-way wireless remote control switch |
| CN103888871A (en) * | 2013-12-23 | 2014-06-25 | 衡阳加一电子科技有限公司 | Wire control device used for earphone and earphone |
| WO2014114033A1 (en) * | 2013-01-25 | 2014-07-31 | 青岛歌尔声学科技有限公司 | Earphone and method for realizing automatic recognition switching control of earphone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365418A (en) * | 2013-06-24 | 2013-10-23 | 张宝权 | Drive-by-wire method for multi-platform application and adjustable drive-by-wire device |
| CN203608336U (en) * | 2013-11-27 | 2014-05-21 | 衡阳加一电子科技有限公司 | Drive-by-wire device used for earphone and earphone |
| CN203912157U (en) * | 2013-12-23 | 2014-10-29 | 衡阳加一电子科技有限公司 | Headphone by-wire device and headphone |
-
2014
- 2014-09-24 WO PCT/CN2014/087246 patent/WO2015078226A1/en active Application Filing
- 2014-09-24 CN CN201480003761.0A patent/CN104885479A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480658A (en) * | 2010-11-22 | 2012-05-30 | 美律实业股份有限公司 | Earphone plug suitable for different system specifications |
| WO2014114033A1 (en) * | 2013-01-25 | 2014-07-31 | 青岛歌尔声学科技有限公司 | Earphone and method for realizing automatic recognition switching control of earphone |
| CN103634718A (en) * | 2013-11-27 | 2014-03-12 | 衡阳加一电子科技有限公司 | Earphone and line control device for same |
| CN103700238A (en) * | 2013-12-16 | 2014-04-02 | 中山菲柯特电子电器有限公司 | Four-way wireless remote control switch |
| CN103888871A (en) * | 2013-12-23 | 2014-06-25 | 衡阳加一电子科技有限公司 | Wire control device used for earphone and earphone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115175062A (en) * | 2022-09-07 | 2022-10-11 | 广州市保伦电子有限公司 | Audio power-on and power-off impact prevention control method and circuit based on external equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015078226A1 (en) | 2015-06-04 |
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Application publication date: 20150902 |