CN109889942B - Type-C patch cord, control method and terminal equipment - Google Patents
Type-C patch cord, control method and terminal equipment Download PDFInfo
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- CN109889942B CN109889942B CN201910208776.5A CN201910208776A CN109889942B CN 109889942 B CN109889942 B CN 109889942B CN 201910208776 A CN201910208776 A CN 201910208776A CN 109889942 B CN109889942 B CN 109889942B
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Abstract
The invention provides a Type-C patch cord, a control method and terminal equipment, wherein one end of the Type-C patch cord is a Type-C interface, the other end of the Type-C patch cord is a 3.5mm interface, and a microphone cathode connecting wire in the 3.5mm interface is provided with a grounding point. The embodiment of the invention can improve the playing effect.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a Type-C patch cord, a control method and terminal equipment.
Background
With the rapid development of terminal technology, terminal equipment has become an essential tool in people's life, and brings great convenience to various aspects of user's life. The Type-C interface of the terminal device has become popular and there is a tendency for the 3.5mm interface on the terminal device to be slowly removed. Thus, when the terminal equipment without the 3.5mm interface needs to use the earphone, the Type-C patch cord needs to be used for assisting in connecting the earphone with the 3.5mm plug.
However, in the prior art, when the Type-C patch cord is used to assist in connecting the 3.5mm plug earphone, crosstalk may occur, resulting in a poor playing effect.
Disclosure of Invention
The embodiment of the invention provides a Type-C patch cord, a control method and terminal equipment, and aims to solve the problem that crosstalk can occur to cause a poor playing effect when a 3.5mm plug earphone is connected in an auxiliary mode through the Type-C patch cord.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a Type-C patch cord, where one end of the Type-C patch cord is a Type-C interface, the other end of the Type-C patch cord is a 3.5mm interface, and a ground point is arranged on a negative electrode connection line of a microphone in the 3.5mm interface.
In a second aspect, an embodiment of the present invention further provides a control method, which is applied to a terminal device, where the terminal device includes a first switch, a second switch, a third switch, and a fourth switch, the first switch is connected to a left channel reference line, the second switch is connected to a right channel reference line, the third switch is connected to a microphone input terminal, and the fourth switch is connected to a ground terminal, and the method includes:
controlling the input end of the microphone to be respectively conducted with the first connecting line and the second connecting line in the state that the terminal equipment is connected with the patch cord;
acquiring a first ground resistance of the first connecting line and a second ground resistance of the second connecting line;
Adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the sizes of the first ground resistor and the second ground resistor;
the first connecting line is connected with a microphone cathode connecting line in the 3.5mm interface, and the second connecting line is connected with a microphone anode connecting line in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface.
In a third aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes a first switch, a second switch, a third switch, and a fourth switch, the first switch is connected to a left channel reference line, the second switch is connected to a right channel reference line, the third switch is connected to a microphone input end, and the fourth switch is connected to a ground end, and the terminal device includes:
the control module is used for controlling the input end of the microphone to be respectively conducted with the first connecting line and the second connecting line in the state that the terminal equipment is connected with the patch cord;
An obtaining module, configured to obtain a first ground resistance of the first connection line and a second ground resistance of the second connection line;
the adjusting module is used for adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the sizes of the first ground resistor and the second ground resistor;
the first connecting line is connected with a microphone cathode connecting line in the 3.5mm interface, and the second connecting line is connected with a microphone anode connecting line in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface.
In a fourth aspect, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program implements the steps of the control method when executed by the processor.
In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the control method.
According to the Type-C patch cord provided by the embodiment of the invention, one end of the Type-C patch cord is a Type-C interface, the other end of the Type-C patch cord is a 3.5mm interface, and a grounding point is arranged on a microphone negative electrode connecting wire in the 3.5mm interface. The embodiment of the invention can improve the playing effect.
Drawings
FIG. 1 is a block diagram of a Type-C patch cord according to an embodiment of the present invention;
FIG. 2 is a flow chart of a control method provided by an embodiment of the invention;
FIG. 3 is a block diagram of a switch provided by an embodiment of the present invention;
fig. 4 is one of the structural diagrams of the terminal device provided in the embodiment of the present invention;
fig. 5 is one of the structural diagrams of the adjusting module of the terminal device according to the embodiment of the present invention;
fig. 6 is a second structural diagram of an adjustment module of a terminal device according to an embodiment of the present invention;
fig. 7 is a second structural diagram of a terminal device according to an embodiment of the present invention.
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 some, not all, embodiments of the present invention. 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.
Referring to fig. 1, fig. 1 is a structural diagram including a Type-C patch cord according to an embodiment of the present invention, and as shown in fig. 1, one end of the Type-C patch cord is a Type-C interface, and the other end of the Type-C patch cord is a 3.5mm interface, where a ground point 1 is disposed on a negative electrode connection line of a microphone in the 3.5mm interface.
In fig. 1, there are a terminal device and an earphone in addition to the Type-C patch cord, and the terminal device is connected with the earphone through the Type-C patch cord. And a grounding point 1 is arranged on the negative electrode connecting wire of the microphone in the 3.5mm interface, and the grounding point 1 is grounded. The MIC-line at the earphone interface is grounded nearby, the SBU (SBU1 or SBU2) line of Type-C is pulled to the grounding point 1 independently for grounding, and the SBU line is used as a reference line of a left sound channel power amplifier and a right sound channel power amplifier in cooperation with a detection control logic, so that the crosstalk problem caused by public ground impedance is eliminated through far-end feedback, and the stereo field effect is improved.
Optionally, a first distance between the ground point 1 and the first side of the 3.5mm interface is smaller than a second distance between the ground point 1 and the second side of the 3.5mm interface, and the second side of the 3.5mm interface is a side of the 3.5mm interface close to the Type-C interface.
In this embodiment, reference may be made again to fig. 1 for a better understanding of the above arrangement. As shown in fig. 1, the distance between the ground point 1 and the right side of the 3.5mm interface (i.e. the first distance) is smaller than the distance between the ground point 1 and the left side of the 3.5mm interface (i.e. the second distance). Colloquially it is understood that the ground point 1 is located close to the outside of the 3.5mm interface. Therefore, the crosstalk problem caused by common ground impedance can be better eliminated by matching with a detection control logic.
According to the Type-C patch cord provided by the embodiment of the invention, one end of the Type-C patch cord is a Type-C interface, the other end of the Type-C patch cord is a 3.5mm interface, and a grounding point is arranged on a microphone negative electrode connecting wire in the 3.5mm interface. The embodiment of the invention can improve the playing effect.
Referring to fig. 2, fig. 2 is a flowchart of a control method according to an embodiment of the present invention, and is applied to a terminal device, where the terminal device includes a first switch S1, a second switch S2, a third switch S3, and a fourth switch S4, the first switch S1 is connected to a left channel reference line, the second switch S2 is connected to a right channel reference line, the third switch S3 is connected to a microphone input terminal, and the fourth switch S4 is connected to a ground terminal. As shown in fig. 2, the method comprises the steps of:
In this embodiment, in a state where the terminal device is connected to the patch cord, the third switch S3 may control the microphone input end to be respectively conducted with the first connection cord and the second connection cord. When the third switch S3 is turned on as shown in fig. 1, the microphone input terminal is connected to the first connection line; the third switch S3 is turned off, and the microphone input terminal is connected to the second connection line. The first connection line may be referred to as SBU1 and the second connection line may be referred to as SBU 2.
In this embodiment, the earphone may also be connected to the patch cord in a state where the terminal device is connected to the patch cord. And is now closed as in S5 in fig. 1 (caused by headphone insertion). The type detection module is grounded, and the terminal equipment is identified as earphone equipment.
In this embodiment, the obtaining of the first ground resistance of the first connection line is the obtained first ground resistance when the input end of the microphone is conducted with the first connection line; and acquiring the second ground resistance of the second connecting line, wherein the second ground resistance is acquired under the condition that the input end of the microphone is conducted with the second connecting line. And both the first and second ground resistances can be obtained by the microphone input module.
In this embodiment, by adjusting the state of at least one of the first switch S1, the second switch S2, the third switch S3, and the fourth switch S4 according to the magnitudes of the first ground-to-ground resistor and the second ground-to-ground resistor, an appropriate connection mode can be selected, crosstalk of the earphone can be eliminated as much as possible, and the playing effect can be improved.
Optionally, the first switch S1 includes a first contact, a second contact, and a third contact, where the first contact is connected to the left channel reference line; the second switch S2 comprises a fourth contact, a fifth contact and a sixth contact, and the fourth contact is connected with the right channel reference line; the third switch S3 includes a seventh contact connected to the microphone input, an eighth contact, and a ninth contact; the fourth switch S4 includes a tenth contact, an eleventh contact and a twelfth contact, the tenth contact is connected to ground; the second contact, the fifth contact, the eighth contact and the eleventh contact are all connected with the first connecting line, and the third contact, the sixth contact, the ninth contact and the twelfth contact are all connected with the second connecting line.
In this embodiment, for a better understanding of the switch described above, and the contacts that the switch comprises, reference may still be made to fig. 1. Different switches of the terminal equipment in fig. 1 comprise different contacts, and the second, fifth, eighth and eleventh contacts are all connected with the first connection line (SBU1), and the third, sixth, ninth and twelfth contacts are all connected with the second connection line (SBU 2).
Of course, for better understanding of the switch and the contacts included in the switch, reference may also be made to fig. 3, where fig. 3 is a block diagram of the switch provided by the embodiment of the present invention. As shown in fig. 3, the first switch S1 includes a first contact 01, a second contact 02, and a third contact 03, and the first contact 01 is connected to the channel reference line REFL; the second switch S2 includes a fourth contact 04, a fifth contact 05 and a sixth contact 06, the fourth contact 04 being connected to the right channel reference line REFR; the third switch S3 comprises a seventh contact 07, an eighth contact 08 and a ninth contact 09, the seventh contact 07 being connected to the microphone input MIC; the fourth switch S4 includes a tenth contact 10, an eleventh contact 11, and a twelfth contact 12, the tenth contact 10 is connected to the ground terminal DGND; the second contact 02, the fifth contact 05, the eighth contact 08 and the eleventh contact 11 are all connected to the first connecting line SBU1, and the third contact 03, the sixth contact 06, the ninth contact 09 and the twelfth contact 12 are all connected to the second connecting line SBU 2.
Optionally, the patch cord is a first patch cord or a second patch cord, the first patch cord is of a different Type from the second patch cord, and the first patch cord is the Type-C patch cord.
In this embodiment, one end of the Type-C patch cord is a Type-C interface, the other end of the Type-C patch cord is a 3.5mm interface, and a grounding point is arranged on the microphone negative connection line in the 3.5mm interface. The first patch cord may be referred to as a standard patch cord, and the second patch cord may be referred to as a non-standard patch cord. The patch cord is the first patch cord or the second patch cord, so that the control method can be suitable for different patch cords, and the universality of the terminal equipment is improved.
Optionally, the patch cord is the first patch cord; the adjusting the state of at least one of the first switch S1, the second switch S2, the third switch S3 and the fourth switch S4 according to the magnitudes of the first ground resistance and the second ground resistance includes:
when the first ground resistance is smaller than a preset threshold value and the second ground resistance is larger than or equal to the preset threshold value, controlling the first contact and the second contact of the first switch S1 to be conducted, controlling the fourth contact and the fifth contact of the second switch S2 to be conducted, controlling the seventh contact and the ninth contact of the third switch S3 to be conducted, controlling the tenth contact and the eleventh contact of the fourth switch S4 to be disconnected, and controlling the tenth contact and the twelfth contact to be disconnected;
And when the second ground resistance is smaller than the preset threshold value and the first ground resistance is larger than or equal to the preset threshold value, controlling the conduction between the first contact and the third contact of the first switch S1, controlling the conduction between the fourth contact and the sixth contact of the second switch S2, controlling the conduction between the seventh contact and the eighth contact of the third switch S3, controlling the disconnection between the tenth contact and the eleventh contact of the fourth switch S4, and controlling the disconnection between the tenth contact and the twelfth contact.
This embodiment can be understood with reference to fig. 1. As shown in fig. 1, the terminal device may control the third switch S3 to switch to the SBU1 and SBU2 in a time sharing manner to detect the resistance to ground of the SBU1 and SBU 2. The resistance to ground of SBU1 may be R1 and the resistance to ground of SBU2 may be R2.
If R1 is smaller than the predetermined threshold, R2 is greater than or equal to the predetermined threshold, it is determined as the standard patch cord (i.e., the first patch cord), and SBU1 is grounded. Conduction between the first contact and the second contact of the first switch S1, conduction between the fourth contact and the fifth contact of the second switch S2, conduction between the seventh contact and the ninth contact of the third switch S3, disconnection between the tenth contact and the eleventh contact of the fourth switch S4, and disconnection between the tenth contact and the twelfth contact may be controlled. The left and right channel reference lines are now connected to SBU1, and the microphone inputs are connected to SBU 2.
If R2 is smaller than the preset threshold, R1 is greater than or equal to the preset threshold, it is determined as a standard patch cord (i.e., the first patch cord), and SBU2 is grounded. Conduction between the first contact and the third contact of the first switch S1, conduction between the fourth contact and the sixth contact of the second switch S2, conduction between the seventh contact and the eighth contact of the third switch S3, disconnection between the tenth contact and the eleventh contact of the fourth switch S4, and disconnection between the tenth contact and the twelfth contact may be controlled. The left and right channel reference lines are now connected to SBU2, and the microphone inputs are connected to SBU 1.
Therefore, an MIC-line at an earphone interface is grounded nearby, an SBU (SBU1 or SBU2) line of Type-C is independently pulled to a grounding point 1 to be grounded, and the SBU line is used as a reference line of a left and right sound channel power amplifier in cooperation with a detection control logic, so that the crosstalk problem caused by public ground impedance is eliminated, and the stereo field effect is improved.
Optionally, the patch cord is the second patch cord, and the adjusting the state of at least one of the first switch, the second switch, the third switch, and the fourth switch according to the magnitudes of the first ground-to-ground resistor and the second ground-to-ground resistor includes:
And under the condition that the first ground resistor and the second ground resistor are both larger than a preset threshold value, adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the size relationship between the first ground resistor and the second ground resistor.
In this embodiment, when both the first ground resistance and the second ground resistance are greater than the preset threshold, the patch cord is a non-standard patch cord (i.e., a second patch cord). At this time, the state of at least one of the first switch, the second switch, the third switch, and the fourth switch may be adjusted by comparing the magnitude relationship between the first pair of ground resistors and the second pair of ground resistors, so as to reduce crosstalk as much as possible and improve the playing effect.
Optionally, the adjusting, according to a magnitude relationship between the first ground resistor and the second ground resistor, a state of at least one of the first switch, the second switch, the third switch, and the fourth switch includes:
under the condition that the first ground resistance is smaller than the second ground resistance, controlling the conduction between a first contact and a second contact of the first switch, controlling the conduction between a fourth contact and a fifth contact of the second switch, controlling the conduction between a seventh contact and a ninth contact of the third switch, and controlling the conduction between a tenth contact and an eleventh contact of the fourth switch;
And under the condition that the first ground resistance is larger than the second ground resistance, controlling the conduction between a first contact and a third contact of the first switch, controlling the conduction between a fourth contact and a sixth contact of the second switch, controlling the conduction between a seventh contact and an eighth contact of the third switch, and controlling the conduction between a tenth contact and a twelfth contact of the fourth switch.
In this embodiment, when the first ground-to-ground resistance is smaller than the second ground-to-ground resistance, it is determined that SBU2 is an earphone microphone and SBU1 is an earphone ground. The first contact and the second contact of the first switch are controlled to be conducted, the fourth contact and the fifth contact of the second switch are controlled to be conducted, the seventh contact and the ninth contact of the third switch are controlled to be conducted, and the tenth contact and the eleventh contact of the fourth switch are controlled to be conducted. That is, the control microphone input is connected to SBU2, SBU1 is connected to ground through a fourth switch, and the left and right channel reference lines are connected to SBU 1.
Similarly, when the first ground resistance is greater than the second ground resistance, the SBU1 is determined to be an earphone microphone, and the SBU2 is determined to be an earphone ground. And controlling the conduction between the first contact and the third contact of the first switch, controlling the conduction between the fourth contact and the sixth contact of the second switch, controlling the conduction between the seventh contact and the eighth contact of the third switch, and controlling the conduction between the tenth contact and the twelfth contact of the fourth switch. That is, the control microphone input is connected to SBU1, SBU2 is connected to ground through a fourth switch, and the left and right channel reference lines are connected to SBU 2.
In this embodiment, no matter the first ground resistance is smaller than the second ground resistance, or the first ground resistance is larger than the second ground resistance, by controlling the states of the different switches, the principle that the impedance of the microphone in the forward connection is larger than the impedance of the microphone in the reverse connection is utilized, so as to eliminate crosstalk as much as possible and improve the playing effect.
Optionally, the terminal device is connected to a three-section type earphone through the patch cord, and the adjusting the state of at least one of the first switch, the second switch, the third switch, and the fourth switch according to the magnitudes of the first ground-to-ground resistor and the second ground-to-ground resistor includes:
under the condition that the first ground resistance and the second ground resistance are both smaller than a preset threshold value, the seventh contact and the eighth contact of the third switch are controlled to be disconnected, and the seventh contact and the ninth contact are controlled to be disconnected; and controlling the disconnection between the tenth contact and the eleventh contact of the fourth switch, and the disconnection between the tenth contact and the twelfth contact.
In this embodiment, the preset threshold may be a value close to 0. If the first ground resistor and the second ground resistor are both smaller than the preset threshold value, the three-section type earphone without the microphone is judged, and the seventh contact and the eighth contact of the third switch are controlled to be disconnected, and the seventh contact and the ninth contact are controlled to be disconnected; and controlling the tenth contact and the eleventh contact of the fourth switch to be disconnected, and controlling the tenth contact and the twelfth contact to be disconnected. In this case, the patch cord may be a first patch cord or a second patch cord, and this embodiment is not limited thereto.
In this embodiment, the terminal Device may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.
A control method according to an embodiment of the present invention is applied to a terminal device, where the terminal device includes a first switch, a second switch, a third switch, and a fourth switch, the first switch is connected to a left channel reference line, the second switch is connected to a right channel reference line, the third switch is connected to an input end of a microphone, and the fourth switch is connected to a ground end, and the method includes: controlling the input end of the microphone to be respectively conducted with the first connecting line and the second connecting line under the state that the terminal equipment is connected with the patch cord; acquiring a first ground resistance of the first connecting line and a second ground resistance of the second connecting line; adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the sizes of the first ground resistor and the second ground resistor; the first connecting line is connected with a microphone cathode connecting line in the 3.5mm interface, and the second connecting line is connected with a microphone anode connecting line in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface. Therefore, a proper connection mode can be selected, the crosstalk of the earphone can be eliminated as much as possible, and the playing effect is improved.
Referring to fig. 4, fig. 4 is a structural diagram of a terminal device according to an embodiment of the present invention, which can implement details of a control method in the foregoing embodiment and achieve the same effect. The terminal device 400 includes a first switch, a second switch, a third switch, and a fourth switch, where the first switch is connected to the left channel reference line, the second switch is connected to the right channel reference line, the third switch is connected to the microphone input end, and the fourth switch is connected to the ground end, as shown in fig. 4, the terminal device 400 includes a control module 401, an obtaining module 402, and an adjusting module 403, the control module 401 is connected to the obtaining module 402, and the obtaining module 402 is connected to the adjusting module 403, where:
the control module 401 is configured to control the input end of the microphone to be respectively conducted with the first connection line and the second connection line in a state where the terminal device is connected with the patch cord;
an obtaining module 402, configured to obtain a first ground resistance of the first connection line and a second ground resistance of the second connection line;
an adjusting module 403, configured to adjust a state of at least one of the first switch, the second switch, the third switch, and the fourth switch according to magnitudes of the first ground resistor and the second ground resistor;
The first connecting line is connected with a microphone cathode connecting line in the 3.5mm interface, and the second connecting line is connected with a microphone anode connecting line in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface.
Optionally, the first switch includes a first contact, a second contact, and a third contact, and the first contact is connected to the left channel reference line; the second switch comprises a fourth contact, a fifth contact and a sixth contact, and the fourth contact is connected with the right sound channel reference line; the third switch comprises a seventh contact, an eighth contact and a ninth contact, and the seventh contact is connected with the microphone input end; the fourth switch comprises a tenth contact, an eleventh contact and a twelfth contact, and the tenth contact is connected with the ground end; the second contact, the fifth contact, the eighth contact and the eleventh contact are all connected with the first connecting line, and the third contact, the sixth contact, the ninth contact and the twelfth contact are all connected with the second connecting line.
Optionally, the patch cord is a first patch cord or a second patch cord, the first patch cord is of a Type different from that of the second patch cord, and the first patch cord is the Type-C patch cord.
Optionally, the patch cord is the first patch cord; as shown in fig. 5, the adjusting module 403 includes:
a first control submodule 4031, configured to, when the first ground resistance is smaller than a preset threshold and the second ground resistance is greater than or equal to the preset threshold, control conduction between a first contact and a second contact of the first switch, control conduction between a fourth contact and a fifth contact of the second switch, control conduction between a seventh contact and a ninth contact of the third switch, control disconnection between a tenth contact and an eleventh contact of the fourth switch, and disconnect between the tenth contact and a twelfth contact;
a second control submodule 4032, configured to, when the second ground resistance is smaller than the preset threshold and the first ground resistance is greater than or equal to the preset threshold, control conduction between the first contact and the third contact of the first switch, control conduction between the fourth contact and the sixth contact of the second switch, control conduction between the seventh contact and the eighth contact of the third switch, control disconnection between the tenth contact and the eleventh contact of the fourth switch, and disconnection between the tenth contact and the twelfth contact.
Optionally, the patch cord is the second patch cord, and the adjusting module 403 is configured to adjust a state of at least one of the first switch, the second switch, the third switch, and the fourth switch according to a size relationship between the first ground resistor and the second ground resistor when both the first ground resistor and the second ground resistor are greater than a preset threshold.
Optionally, as shown in fig. 6, the adjusting module 403 includes:
a third control sub-module 4033, configured to control conduction between the first contact and the second contact of the first switch, control conduction between the fourth contact and the fifth contact of the second switch, control conduction between the seventh contact and the ninth contact of the third switch, and control conduction between the tenth contact and the eleventh contact of the fourth switch, when the first ground resistance is smaller than the second ground resistance;
a fourth control submodule 4034, configured to, when the first ground-to-ground resistance is greater than the second ground-to-ground resistance, control conduction between the first contact and the third contact of the first switch, control conduction between the fourth contact and the sixth contact of the second switch, control conduction between the seventh contact and the eighth contact of the third switch, and control conduction between the tenth contact and the twelfth contact of the fourth switch.
Optionally, the terminal device is connected to a three-segment earphone through the patch cord, and the adjusting module 403 is configured to: under the condition that the first ground resistance and the second ground resistance are both smaller than a preset threshold value, the seventh contact and the eighth contact of the third switch are controlled to be disconnected, and the seventh contact and the ninth contact are controlled to be disconnected; and controlling the tenth contact and the eleventh contact of the fourth switch to be disconnected, and controlling the tenth contact and the twelfth contact to be disconnected.
The terminal device 400 can implement each process implemented by the terminal device in the method embodiment of fig. 2, and is not described herein again to avoid repetition.
In the terminal device 400 according to the embodiment of the present invention, in a state where the terminal device is connected to a patch cord, the input end of the microphone is controlled to be respectively conducted with the first connection cord and the second connection cord; acquiring a first ground resistance of the first connecting line and a second ground resistance of the second connecting line; adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the sizes of the first ground resistor and the second ground resistor; the first connecting line is connected with a microphone cathode connecting line in the 3.5mm interface, and the second connecting line is connected with a microphone anode connecting line in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface. Therefore, a proper connection mode can be selected, the crosstalk of the earphone can be eliminated as much as possible, and the playing effect is improved.
Referring to fig. 7, fig. 7 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present invention, where the terminal device 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 7 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 710 is configured to control the input end of the microphone to be respectively conducted with the first connection line and the second connection line in a state that the terminal device is connected with the patch cord; acquiring a first ground resistance of the first connecting line and a second ground resistance of the second connecting line; adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the sizes of the first ground resistor and the second ground resistor; the first connecting line is connected with a microphone cathode connecting line in the 3.5mm interface, and the second connecting line is connected with a microphone anode connecting line in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface. Therefore, a proper connection mode can be selected, the crosstalk of the earphone can be eliminated as much as possible, and the playing effect is improved.
Optionally, the first switch includes a first contact, a second contact, and a third contact, where the first contact is connected to the left vocal tract reference line; the second switch comprises a fourth contact, a fifth contact and a sixth contact, and the fourth contact is connected with the right sound channel reference line; the third switch comprises a seventh contact, an eighth contact and a ninth contact, and the seventh contact is connected with the microphone input end; the fourth switch comprises a tenth contact, an eleventh contact and a twelfth contact, and the tenth contact is connected with the ground end; the second contact, the fifth contact, the eighth contact and the eleventh contact are all connected with the first connecting line, and the third contact, the sixth contact, the ninth contact and the twelfth contact are all connected with the second connecting line.
Optionally, the patch cord is a first patch cord or a second patch cord, the first patch cord is of a different Type from the second patch cord, and the first patch cord is the Type-C patch cord according to claim 1 or 2.
Optionally, the patch cord is the first patch cord; the processor 710 is further configured to, when the first ground resistance is smaller than a preset threshold and the second ground resistance is greater than or equal to the preset threshold, control conduction between the first contact and the second contact of the first switch, control conduction between the fourth contact and the fifth contact of the second switch, control conduction between the seventh contact and the ninth contact of the third switch, control disconnection between the tenth contact and the eleventh contact of the fourth switch, and disconnection between the tenth contact and the twelfth contact; and when the second ground resistance is smaller than the preset threshold value and the first ground resistance is larger than or equal to the preset threshold value, controlling the conduction between a first contact and a third contact of the first switch, controlling the conduction between a fourth contact and a sixth contact of the second switch, controlling the conduction between a seventh contact and an eighth contact of the third switch, controlling the disconnection between a tenth contact and an eleventh contact of the fourth switch, and disconnecting the tenth contact and a twelfth contact.
Optionally, the patch cord is the second patch cord, and the processor 710 is further configured to adjust a state of at least one of the first switch, the second switch, the third switch, and the fourth switch according to a size relationship between the first ground resistance and the second ground resistance when both the first ground resistance and the second ground resistance are greater than a preset threshold.
Optionally, the processor 710 is further configured to, when the first ground resistance is smaller than the second ground resistance, control conduction between the first contact and the second contact of the first switch, control conduction between the fourth contact and the fifth contact of the second switch, control conduction between the seventh contact and the ninth contact of the third switch, and control conduction between the tenth contact and the eleventh contact of the fourth switch; and under the condition that the first ground resistance is larger than the second ground resistance, controlling the conduction between a first contact and a third contact of the first switch, controlling the conduction between a fourth contact and a sixth contact of the second switch, controlling the conduction between a seventh contact and an eighth contact of the third switch, and controlling the conduction between a tenth contact and a twelfth contact of the fourth switch.
Optionally, the terminal device is connected to the three-section type earphone through the patch cord, and the processor 710 is further configured to control the seventh contact and the eighth contact of the third switch to be disconnected, and the seventh contact and the ninth contact to be disconnected, when both the first ground resistance and the second ground resistance are smaller than a preset threshold; and controlling the tenth contact and the eleventh contact of the fourth switch to be disconnected, and controlling the tenth contact and the twelfth contact to be disconnected.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 710; in addition, uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.
The terminal device provides the user with wireless broadband internet access through the network module 702, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the terminal device 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.
The terminal device 700 further comprises at least one sensor 705, such as light sensors, motion sensors and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the luminance of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 7061 and/or a backlight when the terminal device 700 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although in fig. 7, the touch panel 7071 and the display panel 7061 are implemented as two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the terminal device, which is not limited herein.
The interface unit 708 is an interface for connecting an external device to the terminal apparatus 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 700 or may be used to transmit data between the terminal apparatus 700 and the external device.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 710 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby performing overall monitoring of the terminal device. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
The terminal device 700 may further include a power supply 711 (e.g., a battery) for supplying power to various components, and preferably, the power supply 711 may be logically connected to the processor 710 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the terminal device 700 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a terminal device, which includes a processor 710, a memory 709, and a computer program stored in the memory 709 and capable of running on the processor 710, where the computer program is executed by the processor 710 to implement each process of the above control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A control method applied to a terminal device, wherein the terminal device comprises a first switch, a second switch, a third switch and a fourth switch, the first switch is connected with a left channel reference line, the second switch is connected with a right channel reference line, the third switch is connected with a microphone input end, and the fourth switch is connected with a ground end, the method comprising:
controlling the input end of the microphone to be respectively conducted with the first connecting line and the second connecting line in the state that the terminal equipment is connected with the patch cord; the patch cord is a Type-C patch cord; one end of the Type-C patch cord is a Type-C interface, and the other end of the Type-C patch cord is a 3.5mm interface;
acquiring a first ground resistance of the first connecting line and a second ground resistance of the second connecting line;
Adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the sizes of the first ground resistor and the second ground resistor;
the first connecting line is connected with a microphone cathode connecting line in the 3.5mm interface, and the second connecting line is connected with a microphone anode connecting line in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface;
a grounding point is arranged on the negative electrode connecting wire of the microphone in the 3.5mm interface; the ground point is connected to ground in the 3.5mm interface.
2. The method of claim 1, wherein the first switch comprises a first contact, a second contact, and a third contact, the first contact being connected to the left channel reference line;
the second switch comprises a fourth contact, a fifth contact and a sixth contact, and the fourth contact is connected with the right sound channel reference line;
the third switch comprises a seventh contact, an eighth contact and a ninth contact, and the seventh contact is connected with the microphone input end;
The fourth switch comprises a tenth contact, an eleventh contact and a twelfth contact, and the tenth contact is connected with the ground end; the second contact, the fifth contact, the eighth contact and the eleventh contact are all connected with the first connecting line, and the third contact, the sixth contact, the ninth contact and the twelfth contact are all connected with the second connecting line.
3. The method of claim 2, wherein the adjusting the state of at least one of the first switch, the second switch, the third switch, and the fourth switch according to the magnitude of the first ground-pair resistance and the second ground-pair resistance comprises:
when the first ground resistance is smaller than a preset threshold value and the second ground resistance is larger than or equal to the preset threshold value, controlling the conduction between a first contact and a second contact of the first switch, controlling the conduction between a fourth contact and a fifth contact of the second switch, controlling the conduction between a seventh contact and a ninth contact of the third switch, controlling the disconnection between a tenth contact and an eleventh contact of the fourth switch, and disconnecting the tenth contact and a twelfth contact;
And when the second ground resistance is smaller than the preset threshold value and the first ground resistance is larger than or equal to the preset threshold value, controlling the conduction between a first contact and a third contact of the first switch, controlling the conduction between a fourth contact and a sixth contact of the second switch, controlling the conduction between a seventh contact and an eighth contact of the third switch, controlling the disconnection between a tenth contact and an eleventh contact of the fourth switch, and disconnecting the tenth contact and a twelfth contact.
4. The method of claim 2, wherein the terminal device is connected to a three-segment headset through the patch cord, and wherein adjusting the state of at least one of the first switch, the second switch, the third switch, and the fourth switch according to the magnitudes of the first ground resistance and the second ground resistance comprises:
under the condition that the first ground resistance and the second ground resistance are both smaller than a preset threshold value, the seventh contact and the eighth contact of the third switch are controlled to be disconnected, and the seventh contact and the ninth contact are controlled to be disconnected; and controlling the disconnection between the tenth contact and the eleventh contact of the fourth switch, and the disconnection between the tenth contact and the twelfth contact.
5. The method of claim 1, wherein a first distance between the ground point and a first side of the 3.5mm interface is less than a second distance between the ground point and a second side of the 3.5mm interface, and wherein the second side of the 3.5mm interface is a side of the 3.5mm interface that is closer to a Type-C interface.
6. A terminal device, characterized in that the terminal device comprises a first switch, a second switch, a third switch and a fourth switch, the first switch is connected with a left channel reference line, the second switch is connected with a right channel reference line, the third switch is connected with a microphone input terminal, the fourth switch is connected with a ground terminal, the terminal device comprises:
the control module is used for controlling the input end of the microphone to be respectively conducted with the first connecting line and the second connecting line in the state that the terminal equipment is connected with the patch cord; the patch cord is a Type-C patch cord; one end of the Type-C patch cord is a Type-C interface, and the other end of the Type-C patch cord is a 3.5mm interface;
an obtaining module, configured to obtain a first ground resistance of the first connection line and a second ground resistance of the second connection line;
the adjusting module is used for adjusting the state of at least one of the first switch, the second switch, the third switch and the fourth switch according to the sizes of the first ground resistor and the second ground resistor;
The first connecting line is connected with a negative connecting line of a microphone in a 3.5mm interface, and the second connecting line is connected with a positive connecting line of the microphone in the 3.5mm interface; or the first connecting line is connected with a positive connecting line of a microphone in the 3.5mm interface, and the second connecting line is connected with a negative connecting line of the microphone in the 3.5mm interface; a grounding point is arranged on the negative electrode connecting wire of the microphone in the 3.5mm interface; the ground point is connected to ground in the 3.5mm interface.
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| CN113784247B (en) * | 2021-08-30 | 2024-08-30 | 维沃移动通信有限公司 | Electronic equipment, earphone patch cord and electronic equipment assembly |
| CN116261081B (en) * | 2023-05-16 | 2023-08-01 | 合肥联宝信息技术有限公司 | Earphone circuit and control method thereof |
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