CN113489826B - Electronic equipment assembly and terminal equipment - Google Patents

Electronic equipment assembly and terminal equipment Download PDF

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Publication number
CN113489826B
CN113489826B CN202110779753.7A CN202110779753A CN113489826B CN 113489826 B CN113489826 B CN 113489826B CN 202110779753 A CN202110779753 A CN 202110779753A CN 113489826 B CN113489826 B CN 113489826B
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China
Prior art keywords
communication interface
ground
switch
terminal
port
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CN202110779753.7A
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Chinese (zh)
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CN113489826A (en
Inventor
李富贵
李占武
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202110779753.7A priority Critical patent/CN113489826B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • 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
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transceivers (AREA)

Abstract

The invention discloses an electronic equipment assembly and terminal equipment, wherein the electronic equipment assembly comprises the terminal equipment and a digital earphone, and the terminal equipment comprises a frequency modulation module, a first communication interface and an adjusting module; the first end of the adjusting module is connected with the grounding end of the first communication interface, the second end of the adjusting module is grounded, and the frequency modulation module is connected with the grounding end of the first communication interface; the digital earphone comprises a second communication interface which is matched with the first communication interface, and the second communication interface is detachably connected with the first communication interface.

Description

Electronic equipment assembly and terminal equipment
Technical Field
The present invention relates to the field of electronics, and more particularly, to an electronic device assembly and a terminal device.
Background
Along with the development of mobile phone terminals, the integration level of mobile phones is higher and higher, so that the traditional 3.5mm earphone interface of the mobile phones is gradually replaced by a universal serial bus C-Type interface, namely a USB Type C interface.
Type C earphone mainly falls into Type C analog earphone and Type C digital earphone, and wherein, analog earphone possesses antenna function, and that is, analog earphone can regard earphone ground wire or control the channel as the FM antenna. However, since the FM antenna signal is an analog signal, for the digital earphone, the digital earphone may pass through an internal codec module before transmitting the received FM analog signal to the USB Type C interface, and the codec module may convert the FM analog signal received by the digital earphone into a digital signal, so that the digital earphone cannot be used as an FM antenna of the terminal device, and the terminal device cannot implement the FM function.
Disclosure of Invention
The embodiment of the invention provides an electronic equipment assembly and terminal equipment, which are used for solving the problem that in the prior art, a digital earphone cannot be used as an FM antenna of the terminal equipment, so that the terminal equipment cannot realize an FM function.
In a first aspect, an embodiment of the present invention provides an electronic device assembly, including: terminal equipment and digital earphone;
the terminal equipment comprises a frequency modulation module, a first communication interface and an adjusting module;
the first end of the adjusting module is connected with the grounding end of the first communication interface, the second end of the adjusting module is grounded, and the frequency modulation module is connected with the grounding end of the first communication interface;
the digital earphone comprises a second communication interface, wherein the second communication interface is matched with the first communication interface, and the second communication interface is detachably connected with the first communication interface;
under the condition that the first communication interface is connected with the second communication interface of the digital earphone, the adjusting module isolates the grounding end of the first communication interface from the ground, the digital earphone is used as a frequency modulation antenna of the terminal equipment to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface.
In a second aspect, an embodiment of the present invention further provides a terminal device, which includes a frequency modulation module, a first communication interface, and an adjustment module;
the first end of the adjusting module is connected with the grounding end of the first communication interface, the second end of the adjusting module is grounded, and the frequency modulation module is connected with the grounding end of the first communication interface;
when the first communication interface is connected with a second communication interface of a digital earphone, the adjusting module isolates the grounding end of the first communication interface from the ground, the digital earphone is used as a frequency modulation antenna of the terminal equipment to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface; the second communication interface is adapted to the first communication interface, and the second communication interface is detachably connected to the first communication interface.
In an embodiment of the invention, an electronic device assembly is provided, the electronic device assembly comprises a terminal device and a digital earphone, the terminal device comprises a frequency modulation module, a first communication interface and a regulating module, the digital earphone comprises a second communication interface, the regulating module isolates a grounding end of the first communication interface from the ground under the condition that the first communication interface is connected with the second communication interface of the digital earphone, the digital earphone is used as a frequency modulation antenna of the terminal device to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface. Namely, the digital earphone can be used as an FM antenna of the terminal equipment by adding the adjusting module on the basis of not affecting other functions of the terminal equipment.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of an electronic device assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another electronic device assembly according to an embodiment of the present invention
Fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides an electronic equipment assembly, which comprises terminal equipment and a digital earphone. The terminal equipment can be mobile phones, tablet computers, notebook computers, palm computers, wearable equipment and other equipment.
The terminal device 10 comprises a frequency modulation module 110, a first communication interface 120 and an adjustment module 130.
The first end of the adjusting module 130 is connected to the ground of the first communication interface 120, the second end of the adjusting module 130 is grounded, and the frequency modulation module 110 is connected to the ground of the first communication interface 120.
The digital earphone 20 includes a second communication interface 210, the second communication interface 210 being adapted to the first communication interface 120, and the second communication interface 210 being detachably connected to the first communication interface 120.
In this embodiment, as shown in fig. 1, in the case where the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the adjustment module 130 can isolate the ground terminal of the first communication interface 120 from the ground, so that the digital earphone 20 receives an FM analog signal as the FM antenna of the terminal device 10, and the FM analog signal is transmitted to the FM module 110 through the first communication interface 120 and the second communication interface 210.
The above first communication interface 120 may be a universal serial bus Type C interface, i.e., a USB Type-C interface. The above second communication interface 210 may be a universal serial bus Type C interface, i.e., a USB Type-C interface. Specifically, the USB Type-C interface of the terminal device 10 may be a USB Type-C plug (also referred to as a USB Type-C male plug), and correspondingly, the USB Type-C interface of the digital earphone 20 may be a USB Type-C socket (also referred to as a USB Type-C female plug). However, the present application is not limited thereto, and the usb C-type interface of the terminal device 10 may be a usb C-type socket, and only the usb C-type interface of the digital earphone 20 and the usb C-type interface of the terminal device 10 may be matched to achieve connection.
It can be understood that the universal serial bus C-type interface has 24 terminals, can be inserted forward or backward, has high transmission speed, has no directivity, can avoid the situation of misplug in use, and effectively reduces the fault rate. The A1 (B1) port and the A12 (B12) port of the universal serial bus C-type interface are grounding terminals. The A1 port and the a12 port are the first ground (GND 1 in the figure) of the usb C-type interface. The a12 port and the B12 port are the second ground (GND 2 in the figure) of the universal serial bus C-type interface. The other terminals in the usb C-interface may be described with reference to the prior art, and the present application is not described in detail.
The digital earphone 20 may have one antenna or two antennas, and one of the ports in the first ground and one of the ports in the second ground in the universal serial bus interface may be selected as the ground (antenna interface) of the second communication interface 210 to be the antenna interface of the digital earphone 20. Alternatively, one of the ports in the first ground or one of the ports in the second ground in the universal serial bus interface may be selected as the ground (antenna interface) of the second communication interface 210.
For example, as shown in fig. 1, the digital earphone 20 has one antenna, and the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20) includes an A1 port and a B1 port in the universal serial bus interface, where the A1 port shown in fig. 1 is connected to the antenna fm_ant1, and the B1 terminal is suspended (NC). Of course, it is also possible to select the a12 port and the B12 port of the universal serial bus interface as the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20), where the a12 port antenna fm_ant1, B12 is suspended (NC).
As another example, as shown in fig. 4, the digital earphone 20 has two antennas, and the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20) includes an A1 port and a B1 port in the universal serial bus interface, where the A1 port is connected to one antenna fm_ant1 and the B1 port is connected to the other antenna fm_ant2. Of course, it is also possible to select the a12 port and the B12 port of the universal serial bus interface as the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20), wherein the a12 port antennas fm_ant1, B12 are connected to fm_ant2.
As another example, as shown in fig. 5, the digital earphone 20 has one antenna, and the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20) is an A1 port or a B1 port in the universal serial bus interface, where the A1 port is connected to the antenna fm_ant1, and the B1 port is grounded. Of course, the a12 port or the B12 port in the universal serial bus interface may be selected as the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20), where the a12 port is connected to fm_ant1, and the B12 port is grounded.
The ground terminal of the first communication interface 120 (antenna interface of the terminal device 10) includes one port in the first ground terminal and one port in the second ground terminal in the universal serial bus C-type interface.
For example, as shown in fig. 1, the ground of the first communication interface 120 includes an A1 port (GND 1) and a B1 port (GND 2) in the universal serial bus interface, and of course, the ground of the first communication interface 130 may also include an a12 port (GND 1) and a B12 port (GND 2) in the universal serial bus interface.
The ground terminal of the first communication interface 120 (the antenna interface of the terminal device 10) may also be one of the first ground terminals or one of the second ground terminals in the universal serial bus C-type interface.
For example, as shown in fig. 4, the ground terminal of the first communication interface 120 is the A1 port (GND 1) in the universal serial bus interface, and the B1 port (GND 2) is grounded. Of course, the ground terminal of the first communication interface 130 may be the a12 port (GND 1) of the usb interface, and the B12 port (GND 2) is grounded.
In this embodiment, when the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the adjusting module 130 isolates the ground terminal of the first communication interface 120, the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device 10, and the FM analog signal is transmitted to the frequency modulation module 110 through the first communication interface 120 and the second communication interface 210.
According to the electronic equipment assembly of the embodiment, the electronic equipment assembly comprises a terminal device and a digital earphone, the terminal device comprises a frequency modulation module, a first communication interface and a regulating module, the digital earphone comprises a second communication interface, the regulating module isolates the grounding end of the first communication interface from the ground under the condition that the first communication interface is connected with the second communication interface of the digital earphone, the digital earphone is used as a frequency modulation antenna of the terminal device to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface. Namely, the digital earphone can be used as an FM antenna of the terminal equipment by adding the adjusting module on the basis of not affecting other functions of the terminal equipment.
In one embodiment, as shown in fig. 1, the conditioning module 130 turns on the ground terminal of the first communication interface 110 with the first communication interface 120 connected to a charger or OTG device other than the digital earphone 20.
In this embodiment, as shown in fig. 1, when the first communication interface 120 is plugged into a charger to charge or is connected to an OTG device, the adjusting module 130 will conduct the ground terminal of the first communication interface 120 with ground, and at this time, the ground terminal of the first communication interface 120 is conducted with ground, so that the charging return terminal is not reduced, and the charging efficiency of the terminal device 10 is not affected.
In one embodiment, as shown in fig. 2, the terminal device 10 further includes a first capacitor 140, where the first capacitor 140 is connected in series between the frequency modulation module 110 and the ground of the first communication interface 120.
In this embodiment, the first capacitor 140 can prevent the fm module 110 from being burned out due to an excessive charging current during the charging process of the terminal device 10.
In one embodiment, as shown in fig. 3, the adjusting module 130 is a first inductor 131, a first end of the first inductor 131 is connected to a ground terminal of the first communication interface 120, and a second end of the first inductor 131 is grounded.
In one example, as shown in fig. 3, in a case where the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the first inductor 131 can isolate the ground terminal of the first communication interface 120, for example, the A1 port (GND 1) and the B1 port (GND 2), from the ground, and the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device, and the FM analog signal is transmitted to the frequency modulation module 110 through the first communication interface and the second communication interface.
In one example, as shown in fig. 3, in the case where the first communication interface 120 is connected to a charger or an OTG device other than the digital earphone 20, the first inductor 131 can pull the ground terminals of the first communication interface 120, for example, the A1 port (GND 1) and the B1 port (GND 2), to the ground with very low resistance, so that it can be ensured that the charging return terminal is not reduced, avoiding affecting the charging efficiency of the terminal device 10.
In one example, as shown in fig. 4, in a case where the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the first inductor 131 can isolate the ground terminal of the first communication interface 120, for example, the A1 port (GND 1), from the ground, and the digital earphone 20 receives an FM analog signal as the FM antenna of the terminal device 10, and the FM analog signal is transmitted to the FM module 110 via the first communication interface 120 and the second communication interface 210.
In one example, as shown in fig. 4, in the case where the first communication interface 120 is connected to a charger or an OTG device other than a digital earphone, the first inductor 131 can pull the ground terminal, for example, the A1 port (GND 1), of the first communication interface 120 to the ground with a very low resistance, so that it can be ensured that the charging return terminal is not reduced, and the charging efficiency of the terminal device 10 is not affected.
It will be appreciated that the first inductor 131 in this embodiment may be determined according to the maximum charging current value that the terminal device can withstand.
In one embodiment, as shown in fig. 5, where the ground of the first communication interface 120 includes one of the first grounds and one of the second grounds in the universal serial bus C-type interface, the terminal device 10 further includes a second capacitor 150 and a second inductor 132.
The second capacitor 150 is connected in series between the frequency modulation module 110 and the ground terminal of the first communication interface 120, and the first terminal of the second inductor 132 is connected to the ground terminal of the first communication interface 120, and the second terminal of the second inductor 132 is grounded.
In this embodiment, as shown in fig. 5, the digital earphone 20 has one antenna, the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20) is the A1 port in the usb interface, and the A1 port is connected to the antenna fm_ant1, and the B1 port is grounded. In order to ensure that the digital earphone 20 can realize the antenna function either in the forward or reverse direction, the terminal device 10 is provided with a second inductor 132.
In one example, as shown in fig. 5, in a case where the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the first inductor 131 can isolate a ground terminal, for example, an A1 port (GND 1), of the first communication interface 120 from ground, and the second inductor 132 can isolate a ground terminal B1 port (GND 2) of the first communication interface 120 from ground, and the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device, and the FM analog signal is transmitted to the frequency modulation module 110 through the first communication interface 120 and the second communication interface 210.
In one example, as shown in fig. 5, in the case where the first communication interface 120 is connected to a charger or an OTG device other than the digital earphone 20, the first inductor 131 can pull the ground terminal of the first communication interface 120, for example, the A1 port (GND 1), to the ground with a very low resistance, and the second inductor 132 can pull the ground terminal of the first communication interface 120, for example, the B1 port (GND 2), to the ground with a very low resistance, so that it is possible to ensure that the charging return terminal is not reduced, avoiding affecting the charging efficiency of the terminal device 10. Meanwhile, the second capacitor can realize that the frequency modulation module 120 is prevented from being burnt out due to overlarge charging current in the charging process of the terminal device 10.
It will be appreciated that the second inductance 132 in this embodiment may be determined based on the maximum charging current value that the terminal device 10 can withstand.
In one embodiment, as shown in fig. 6, the isolation module 130 includes a processor 160 and a first switch 133. The processor 160 is connected to a control terminal of the first switch 133, a first terminal of the first switch 133 is connected to a ground terminal of the first communication interface 120, and a second terminal of the first switch 133 is grounded.
In this embodiment, in the case where the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the processor 160 controls the first switch 133 to be turned off, and the digital earphone 20 receives an FM analog signal as the FM antenna of the terminal device 10, and the FM analog signal is transmitted to the FM module 110 via the first communication interface 120 and the second communication interface 210.
In one example, as shown in fig. 6, in the case that the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the General Purpose Input Output (GPIO) terminal of the processor 160 outputs a high level control signal to the control terminal of the first switch 133, at this time, the first switch 133 is turned off, so that the ground terminal of the first communication interface 120, for example, the A1 port (GND 1) and the B1 port (GND 2), is disconnected from the ground, and the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device 10, and the FM analog signal is transmitted to the frequency modulation module 110 through the first communication interface 120 and the second communication interface 210.
In one example, as shown in fig. 7, when the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the General Purpose Input Output (GPIO) terminal of the processor 160 outputs a high level control signal to the control terminal of the first switch 133, at this time, the first switch 133 is turned off, the ground terminal of the first communication interface 120, for example, the A1 port (GND 1), is turned off, the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device 10, and the FM analog signal is transmitted to the frequency modulation module 110 through the first communication interface 120 and the second communication interface 210.
In this embodiment, when the first communication interface 120 is connected to a charger or an OTG device other than a digital earphone, the processor 160 controls the first switch 133 to be turned on, so that the ground of the first communication interface 120 is grounded.
In an example, as shown in fig. 6, in the case where the first communication interface 120 is connected to a charger or an OTG device other than a digital earphone, a General Purpose Input Output (GPIO) terminal of the processor 160 outputs a low level control signal to a control terminal of the first switch 133, at this time, the first switch 133 is turned on, and a ground terminal of the first communication interface 120, for example, an A1 port (GND 1) and a B1 port (GND 2), are grounded, so that it is ensured that a charging return terminal is not reduced, and the charging efficiency of the terminal device 10 is not affected.
In one example, as shown in fig. 7, in the case where the first communication interface 120 is connected to a charger or an OTG device other than a digital earphone, a General Purpose Input Output (GPIO) terminal of the processor 160 outputs a low level control signal to a control terminal of the first switch 133, at this time, the first switch 133 is turned on, and a ground terminal of the first communication interface 120, for example, an A1 port (GND 1), is grounded, so that it is ensured that a charging return terminal is not reduced, and the charging efficiency of the terminal device 10 is not affected.
In one embodiment, as shown in fig. 8, where the ground of the first communication interface 120 includes one of the first grounds and one of the second grounds in the universal serial bus C-type interface, the terminal device 10 further includes a third capacitance 170 and a second switch 134.
The third capacitor 170 is connected in series between the frequency modulation module 110 and the ground terminal of the first communication interface 120, the control terminal of the second switch 134 is connected to the processor 160, the first terminal of the second switch 134 is connected to the ground terminal of the first communication interface 120, and the second terminal of the second switch 134 is grounded.
As shown in fig. 8, the digital earphone 20 has one antenna, the ground terminal of the second communication interface 210 (the antenna interface of the digital earphone 20) is the A1 port in the universal serial bus interface, and the A1 port is connected to the antenna fm_ant1, and the B1 port is grounded. In order to ensure that the digital earphone 20 can realize the antenna function either in the forward or reverse direction, a third capacitor 170 and a second switch 134 are provided in the terminal device 10.
In one example, as shown in fig. 8, in the case that the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the General Purpose Input Output (GPIO) terminal of the processor 160 outputs a high level control signal to the control terminal of the first switch 133 and the control terminal of the second switch 134, at this time, the first switch 133 and the second switch 134 are both opened, the ground terminal of the first communication interface 120, such as the A1 port (GND 1) and the B1 port (GND 2), is disconnected from the ground, the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device 10, and the FM analog signal is transmitted to the frequency modulation module 110 through the first communication interface 120 and the second communication interface 210.
In one example, as shown in fig. 8, in the case where the first communication interface 120 is plugged into a charger to perform charging, the General Purpose Input Output (GPIO) terminal of the processor 160 outputs a low level control signal to the control terminals of the first switch 133 and the second switch 134, and at this time, both the first switch 133 and the second switch 134 are turned on, and the ground terminals of the first communication interface 120, for example, the A1 port and the B1 port, are grounded, so that it is ensured that the charging return terminal is not reduced, and the charging efficiency of the terminal device 10 is not affected. Meanwhile, the first capacitor 140 and the third capacitor 170 can realize that the frequency modulation module 110 is prevented from being burnt out due to overlarge charging current in the charging process of the terminal device 10.
In one embodiment, as shown in fig. 9, 10 and 11, the terminal device further comprises a third switch 180. The control end of the third switch 180 is connected to the processor 160, the first end of the third switch 180 is connected to the control end of the first switch 133 and the control end of the second switch 134, respectively, and the second end of the third switch 180 is grounded.
In one example, as shown in fig. 9, when the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the General Purpose Input Output (GPIO) terminal of the processor 160 outputs a high level control signal to the control terminal of the third switch 180, at this time, the third switch 180 is turned on, the first switch 133 is turned off, the ground terminal of the first communication interface 120, such as the A1 port (GND 1) and the B1 port (GND 2), is turned off, the digital earphone 20 receives an FM analog signal as the FM antenna of the terminal device 10, and the FM analog signal is transmitted to the FM module 110 via the first communication interface 120 and the second communication interface 210.
In one example, as shown in fig. 10, when the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the General Purpose Input Output (GPIO) terminal of the processor 160 outputs a high level control signal to the control terminal of the third switch 180, at this time, the third switch 180 is turned on, the first switch 133 is turned off, the ground terminal of the first communication interface 120, for example, the A1 port (GND 1), is turned off, the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device 10, and the FM analog signal is transmitted to the frequency modulation module 110 via the first communication interface 120 and the second communication interface 210.
In one example, as shown in fig. 11, when the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the General Purpose Input Output (GPIO) terminal of the processor 160 outputs a high level control signal to the control terminal of the third switch 180, at this time, the third switch 180 is turned on, the first switch 133 and the second switch 134 are both turned off, the ground terminal of the first communication interface 120, such as the A1 port (GND 1) and the B1 port (GND 1), is disconnected from the ground, the digital earphone 20 receives an FM analog signal as the FM antenna of the terminal device 10, and the FM analog signal is transmitted to the FM module 110 through the first communication interface 120 and the second communication interface 210.
In one embodiment, to avoid high current consumption when the third switch 180 is grounded, the terminal device 10 further includes a resistor 190, where the resistor 190 is connected between the second terminal of the third switch 180 and the power pin of the first communication interface 120.
Next, the structure of the electronic device assembly of fig. 3 to 11 will be described in detail.
Taking fig. 3 as an example, the digital earphone 20 has an antenna, and the antenna interface of the digital earphone 20 includes an A1 port and a B1 port, where the A1 port is connected to the antenna, and the B1 port is suspended. The antenna interface of the terminal device 10 includes an A1 port (GND 1) and a B1 port (GND 2), where the A1 port and the B1 port are both connected to the first inductor 131, and the A1 port and the B1 port are both connected to the frequency modulation module 110 through the first capacitor 140 (where parallel connection lines represent digital earphone normal insertion, and cross-connection represents digital reverse insertion).
Taking fig. 4 as an example, the digital earphone 20 has two antennas, the antenna interface of the digital earphone 20 includes an A1 port and a B1 port, where the A1 port is connected to the antenna, the B1 port is connected to the antenna, the antenna interface of the terminal device 10 includes an A1 port (GND 1), where the A1 port is connected to the first inductor 131, and the A1 port is connected to the frequency modulation module 110 through the first capacitor 140 (where the parallel connection indicates that the digital earphone is plugged in, and the cross-connection indicates that the digital is plugged in).
Taking fig. 5 as an example, the digital earphone 20 has an antenna, and the antenna interface of the digital earphone 20 includes an A1 port, where the A1 port is connected to the antenna. The antenna interface of the terminal device 10 includes an A1 port (GND 1) and a B1 port (GND 2), where the A1 port is connected to the first inductor 131, and the A1 port is connected to the frequency modulation module 110 through the first capacitor 140, the B1 port is connected to the second inductor 132, and the B1 port is connected to the frequency modulation module 110 through the second capacitor 150 (where the parallel line represents the digital earphone forward insertion, and the cross-connection represents the digital reverse insertion).
Taking fig. 6 as an example, the digital earphone 20 has an antenna, and the antenna interface of the digital earphone 20 includes an A1 port and a B1 port, where the A1 port is connected to the antenna, and the B1 port is suspended. The antenna interface of the terminal device 10 includes an A1 port (GND 1) and a B1 port (GND 2), where the A1 port and the B1 port are connected to the processor 160 through the first switch 133, and the A1 port and the B1 port are both connected to the frequency modulation module 110 through the first capacitor 140 (where the parallel connection indicates that the digital earphone is plugged in, and the cross-connection indicates that the digital is plugged in).
Taking fig. 7 as an example, the digital earphone 20 has two antennas, and the antenna interface of the digital earphone 20 includes an A1 port and a B1 port, where the A1 port is connected to one antenna fm_ant1, and the B1 port is connected to the other antenna fm_ant2. The antenna interface of the terminal device 10 includes an A1 port (GND 1), where the A1 port is connected to the first switch 133, and the A1 port is connected to the frequency modulation module 110 through the first capacitor 140 (where the parallel connection indicates that the digital earphone 20 is plugged in, and the cross-connection indicates that the digital earphone 20 is plugged in reverse).
Taking fig. 8 as an example, the digital earphone 20 has an antenna, and the antenna interface of the digital earphone 20 includes an A1 port, where the A1 port is connected to the antenna. The antenna interface of the terminal device includes an A1 port (GND 1) and a B1 port (GND 2), so as to ensure that the digital earphone 20 can realize an antenna function both in the forward and reverse directions. The A1 port is connected to the processor 160 through the first switch 133, and the A1 port is connected to the frequency modulation module 110 through the first capacitor 140. The B1 port is connected to the second switch 134 through the processor 160, and the B1 port is connected to the frequency modulation module 110 through the third capacitor 170.
Taking fig. 9 as an example, the digital earphone 20 has an antenna, and the antenna interface of the digital earphone 20 includes an A1 port, where the A1 port is connected to the antenna. The antenna interface of the terminal device 10 includes an A1 port (GND 1) and a B1 port (GND 2), in order to ensure that both the forward and reverse insertion of the digital earphone 20 can realize an antenna function. The A1 port and the B1 port are both connected to the processor 160 through the first switch 133 and the third switch 180, and the A1 port and the B1 port are both connected to the frequency modulation module 110 through the first capacitor 140.
Taking fig. 10 as an example, the digital earphone 20 has two antennas, and the antenna interface of the digital earphone 20 includes an A1 port and a B1 port, where the A1 port is connected to one antenna fm_ant1, and the B1 port is connected to the other antenna fm_ant2. The antenna interface of the terminal device 10 includes an A1 port (GND 1) in order to ensure that both the forward and reverse insertion of the digital earphone 20 can realize an antenna function. The A1 port is connected to the processor 160 through the first switch 133 and the third switch 180, and the A1 port is connected to the frequency modulation module 110 through the first capacitor 140.
Taking fig. 11 as an example, the digital earphone 20 has an antenna, and the antenna interface of the digital earphone 20 includes an A1 port, where the A1 port is connected to the antenna. The antenna interface of the terminal device 10 includes an A1 port (GND 1) and a B1 port (GND 2), in order to ensure that both the forward and reverse insertion of the digital earphone 20 can realize an antenna function. The A1 port is connected to the processor 160 through the first switch 133 and the third switch 180, and the A1 port is connected to the frequency modulation module 110 through the first capacitor 140. The B1 port is connected to the processor 160 through the second switch 134 and the third switch 180, and the B1 port is connected to the frequency modulation module 110 through the third capacitor 170.
The embodiment of the invention also provides terminal equipment which can be mobile phones, tablet computers, notebook computers, palm computers, wearable equipment and other equipment.
As shown in fig. 12, the terminal device 10 includes a frequency modulation module 110, a first communication interface 120, and an adjustment module 130.
The first end of the adjusting module 130 is connected to the ground of the first communication interface 120, the second end of the adjusting module 130 is grounded, and the frequency modulation module 110 is connected to the ground of the first communication interface 120.
In this embodiment, when the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the adjusting module 130 isolates the ground terminal of the first communication interface 120, the digital earphone 20 receives an FM analog signal as a frequency modulation antenna of the terminal device 10, and the FM analog signal is transmitted to the frequency modulation module 110 through the first communication interface 120 and the second communication interface 210. Wherein the second communication interface 210 is adapted to the first communication interface 120, and the second communication interface 210 is detachably connected to the first communication interface 120.
The first communication interface 120 and the second communication interface 210 are both communication universal serial bus C-type interfaces. The ground terminal of the first communication interface 120 includes one port in the first ground terminal and one port in the second ground terminal in the universal serial bus C-type interface; or,
the ground terminal of the first communication interface is one port of the first ground terminal or one port of the second ground terminal in the universal serial bus C-type interface.
The specific principles may refer to an embodiment of an electronic device assembly, and this embodiment is not described herein.
According to the terminal device of the embodiment, the terminal device comprises a frequency modulation module, a first communication interface and a regulating module, wherein the digital earphone comprises a second communication interface, the regulating module isolates the grounding end of the first communication interface from the ground under the condition that the first communication interface is connected with the second communication interface of the digital earphone, the digital earphone is used as a frequency modulation antenna of the terminal device to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface. Namely, the digital earphone can be used as an FM antenna of the terminal equipment by adding the adjusting module on the basis of not affecting other functions of the terminal equipment.
In one embodiment, as shown in fig. 1, the conditioning module 130 turns on the ground terminal of the first communication interface 110 with the first communication interface 120 connected to a charger or OTG device other than a digital earphone.
In this embodiment, as shown in fig. 1, when the first communication interface 120 is plugged into a charger to charge or is connected to an OTG device, the adjusting module 130 will conduct the ground terminal of the first communication interface 120 with ground, and at this time, the ground terminal of the first communication interface 120 is conducted with ground, so that the charging return terminal is not reduced, and the charging efficiency of the terminal device 10 is not affected.
In one embodiment, as shown in fig. 2, the terminal device 10 further includes a first capacitor 140, where the first capacitor 140 is connected in series between the frequency modulation module 110 and the ground of the first communication interface 120.
In this embodiment, the first capacitor 140 can prevent the fm module 110 from being burned out due to an excessive charging current during the charging process of the terminal device 10.
In one embodiment, as shown in fig. 3, the adjusting module 130 is a first inductor 131, a first end of the first inductor 131 is connected to a ground terminal of the first communication interface 120, and a second end of the first inductor 131 is grounded. The operation of the first inductor 131 may refer to an embodiment of an electronic device assembly, and this embodiment is not described in detail herein.
In one embodiment, as shown in fig. 5, where the ground of the first communication interface 120 includes one of the first grounds and one of the second grounds in the universal serial bus C-type interface, the terminal device 10 further includes a second capacitor 150 and a second inductor 132.
The second capacitor 150 is connected in series between the frequency modulation module 110 and the ground terminal of the first communication interface 120, and the first terminal of the second inductor 132 is connected to the ground terminal of the first communication interface 120, and the second terminal of the second inductor 132 is grounded.
The operation of the second capacitor 150 and the second inductor 132 may refer to an embodiment of an electronic device assembly, and this embodiment is not described in detail herein.
In one embodiment, as shown in fig. 6, the isolation module 130 includes a processor 160 and a first switch 133. The processor 160 is connected to a control terminal of the first switch 133, a first terminal of the first switch 133 is connected to a ground terminal of the first communication interface 120, and a second terminal of the first switch 133 is grounded.
In this embodiment, in the case where the first communication interface 120 is connected to the second communication interface 210 of the digital earphone 20, the processor 160 controls the first switch 133 to be turned off, and the digital earphone 20 receives an FM analog signal as the FM antenna of the terminal device 10, and the FM analog signal is transmitted to the FM module 110 via the first communication interface 120 and the second communication interface 210.
In this embodiment, when the first communication interface 120 is connected to a charger or an OTG device other than a digital earphone, the processor 160 controls the first switch 133 to be turned on, so that the ground of the first communication interface 120 is grounded.
In one embodiment, as shown in fig. 8, where the ground of the first communication interface 120 includes one of the first grounds and one of the second grounds in the universal serial bus C-type interface, the terminal device 10 further includes a third capacitance 170 and a second switch 134.
The third capacitor 170 is connected in series between the frequency modulation module 110 and the ground terminal of the first communication interface 120, the first terminal of the second switch 134 is connected to the processor 160, the first terminal of the second switch 134 is connected to the ground terminal of the first communication interface 120, and the second terminal of the second switch 134 is grounded.
The specific operation of the third capacitor 170 and the second switch 134 may refer to an embodiment of an electronic device assembly, and this embodiment is not described in detail herein.
In one embodiment, as shown in fig. 9, 10 and 11, the terminal device further comprises a third switch 180. The control end of the third switch 180 is connected to the processor 160, the first end of the third switch 180 is connected to the control end of the first switch 133 and the control end of the second switch 134, respectively, and the second end of the third switch 180 is grounded.
The specific operation of the third switch 180 and the second switch 134 may refer to the electronic device assembly embodiment, and this embodiment is not described in detail herein.
In one embodiment, to avoid high current consumption when the third switch 180 is grounded, the terminal device 10 further includes a resistor 190, where the resistor 190 is connected between the second terminal of the third switch 180 and the power pin of the first communication interface 120.
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 defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (14)

1. An electronic device assembly comprising a terminal device and a digital earphone;
the terminal equipment comprises a frequency modulation module, a first communication interface and an adjusting module;
The first end of the adjusting module is connected with the grounding end of the first communication interface, the second end of the adjusting module is grounded, and the frequency modulation module is connected with the grounding end of the first communication interface;
the digital earphone comprises a second communication interface, a grounding end of the second communication interface is connected with a frequency modulation antenna, the second communication interface is matched with the first communication interface, and the second communication interface is detachably connected with the first communication interface;
under the condition that the first communication interface is connected with the second communication interface of the digital earphone, the adjusting module isolates the grounding end of the first communication interface from the ground, the digital earphone is used as a frequency modulation antenna of the terminal equipment to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface.
2. The electronic device assembly of claim 1, wherein the electronic device assembly comprises a plurality of electronic devices,
the first communication interface and the second communication interface are universal serial bus C-type interfaces;
the grounding end of the first communication interface comprises one port in a first grounding end and one port in a second grounding end in the universal serial bus C-type interface; or,
The ground terminal of the first communication interface is one port of a first ground terminal or one port of a second ground terminal in the universal serial bus C-type interface.
3. The electronic device assembly of claim 2, wherein the terminal device further comprises a first capacitor,
the first capacitor is connected in series between the frequency modulation module and the ground terminal of the first communication interface.
4. The electronic device assembly of claim 2, wherein the adjustment module is a first inductor,
the first end of the first inductor is connected with the grounding end of the first communication interface, and the second end of the first inductor is grounded.
5. The electronic device assembly of claim 4, wherein, in the case where the ground of the first communication interface comprises one of the first ground and one of the second ground ports of the universal serial bus type C interface, the terminal device further comprises a second capacitor and a second inductor,
the second capacitor is connected in series between the frequency modulation module and the grounding end of the first communication interface, the first end of the second inductor is connected with the grounding end of the first communication interface, and the second end of the second inductor is grounded.
6. The electronic device assembly of claim 2, wherein the adjustment module comprises a processor and a first switch,
the processor is connected with the control end of the first switch, the first end of the first switch is connected with the grounding end of the first communication interface, and the second end of the first switch is grounded;
when the first communication interface is connected with the second communication interface of the digital earphone, the processor controls the first switch to be disconnected, the digital earphone is used as a frequency modulation antenna of the terminal equipment to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface;
and under the condition that the first communication interface is connected with a charger or OTG equipment except the digital earphone, the processor controls the first switch to be conducted so that the grounding ground of the first communication interface is grounded.
7. The electronic device assembly of claim 6, wherein, in the case where the ground of the first communication interface comprises one of the first ground and one of the second ground of the universal serial bus type C interface, the terminal device further comprises a third capacitor and a second switch,
The third capacitor is connected in series between the frequency modulation module and the grounding end of the first communication interface, the control end of the second switch is connected with the processor, the first end of the second switch is connected with the grounding end of the first communication interface, and the second end of the second switch is grounded.
8. The terminal equipment is characterized by comprising a frequency modulation module, a first communication interface and an adjusting module;
the first end of the adjusting module is connected with the grounding end of the first communication interface, the second end of the adjusting module is grounded, and the frequency modulation module is connected with the grounding end of the first communication interface;
when the first communication interface is connected with a second communication interface of a digital earphone, the adjusting module isolates the grounding end of the first communication interface from the ground, the digital earphone is used as a frequency modulation antenna of the terminal equipment to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface; the grounding end of the second communication interface is connected with a frequency modulation antenna, the second communication interface is matched with the first communication interface, and the second communication interface is detachably connected with the first communication interface.
9. The terminal device of claim 8, wherein the terminal device,
the first communication interface and the second communication interface are universal serial bus C-type interfaces;
the grounding end of the first communication interface comprises one port in a first grounding end and one port in a second grounding terminal in the universal serial bus C-type interface; or,
the ground terminal of the first communication interface is one port of a first ground terminal or one port of a second ground terminal in the universal serial bus C-type interface.
10. The terminal device of claim 9, wherein the terminal device further comprises a first capacitor,
the first capacitor is connected in series between the frequency modulation module and the ground terminal of the first communication interface.
11. The terminal device of claim 9, wherein the adjustment module is a first inductor,
the first end of the first inductor is connected with the grounding end of the first communication interface, and the second end of the first inductor is grounded.
12. The terminal device of claim 11, wherein, in the case where the ground of the first communication interface includes one of the ports in the first ground and one of the ports in the second ground terminal in the universal serial bus type C interface, the terminal device further includes a second capacitor and a second inductor,
The second capacitor is connected in series between the frequency modulation module and the grounding end of the first communication interface, the first end of the second inductor is connected with the grounding end of the first communication interface, and the second end of the second inductor is grounded.
13. The terminal device of claim 9, wherein the adjustment module comprises a processor and a first switch,
the processor is connected with the control end of the first switch, the first end of the first switch is connected with the grounding end of the first communication interface, and the second end of the first switch is grounded;
when the first communication interface is connected with the second communication interface of the digital earphone, the processor controls the first switch to be disconnected, the digital earphone is used as a frequency modulation antenna of the terminal equipment to receive FM analog signals, and the FM analog signals are transmitted to the frequency modulation module through the first communication interface and the second communication interface;
and under the condition that the first communication interface is connected with a charger or OTG equipment except the digital earphone, the processor controls the first switch to be conducted so that the grounding ground of the first communication interface is grounded.
14. The terminal device of claim 13, wherein in the case where the ground of the first communication interface includes one of the first ground terminals and one of the second ground terminals in the universal serial bus type C interface, the terminal device further includes a third capacitor and a second switch,
the third capacitor is connected in series between the frequency modulation module and the grounding end of the first communication interface, the control end of the second switch is connected with the processor, the first end of the second switch is connected with the grounding end of the first communication interface, and the second end of the second switch is grounded.
CN202110779753.7A 2021-07-09 2021-07-09 Electronic equipment assembly and terminal equipment Active CN113489826B (en)

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Citations (2)

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CN107728991A (en) * 2017-09-30 2018-02-23 联想(北京)有限公司 Electronic equipment and FM player methods
CN110166867A (en) * 2019-05-09 2019-08-23 广州三星通信技术研究有限公司 Digital earphone and electric terminal

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019040540A1 (en) * 2017-08-21 2019-02-28 Qualcomm Incorporated Antenna and cabling unification

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107728991A (en) * 2017-09-30 2018-02-23 联想(北京)有限公司 Electronic equipment and FM player methods
CN110166867A (en) * 2019-05-09 2019-08-23 广州三星通信技术研究有限公司 Digital earphone and electric terminal

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